Trane Performance Air Handlers Installation And Maintenance Manual

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Installation, Operation
and Maintenance

Performance Climate Changer™ Air Handlers
Indoor and Outdoor Units
Sizes 3-120

SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and
servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific
knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could
result in death or serious injury. When working on the equipment, observe all precautions in the literature
and on the tags, stickers, and labels that are attached to the equipment.

October 2012

CLCH-SVX07C-EN
X-39641152010

Warnings, Cautions and Notices
Warnings, Cautions and Notices. Note that warnings,
cautions and notices appear at appropriate intervals
throughout this manual. Warnings are provide to alert
installing contractors to potential hazards that could result
in death or personal injury. Cautions are designed to alert
personnel to hazardous situations that could result in
personal injury, while notices indicate a situation that
could result in equipment or property-damage-only
accidents.
Your personal safety and the proper operation of this
machine depend upon the strict observance of these
precautions.
Read this manual thoroughly before operating or servicing
this unit.

ATTENTION: Warnings, Cautions and Notices appear at

appropriate sections throughout this literature. Read
these carefully:
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous
CAUTIONs situation which, if not avoided, could
result in minor or moderate injury. It
could also be used to alert against
unsafe practices.
Indicates a situation that could result in
NOTICE: equipment or property-damage only

WARNING

must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.

WARNING
Proper Field Wiring and Grounding
Required!
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes. Failure to
follow code could result in death or serious injury.

WARNING
Personal Protective Equipment (PPE)
Required!
Installing/servicing this unit could result in exposure to
electrical, mechanical and chemical hazards.
•

Before installing/servicing this unit, technicians
MUST put on all Personal Protective Equipment (PPE)
recommended for the work being undertaken.
ALWAYS refer to appropriate MSDS sheets and OSHA
guidelines for proper PPE.

•

When working with or around hazardous chemicals,
ALWAYS refer to the appropriate MSDS sheets and
OSHA guidelines for information on allowable
personal exposure levels, proper respiratory
protection and handling recommendations.

•

If there is a risk of arc or flash, technicians MUST put
on all Personal Protective Equipment (PPE) in
accordance with NFPA 70E or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit.

Important
Environmental Concerns!
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and
Carbon (HCFCs). Not all refrigerants containing these
compounds have the same potential impact to the
environment. Trane advocates the responsible handling of
all refrigerants-including industry replacements for CFCs
such as HCFCs and HFCs.

Failure to follow recommendations could result in death
or serious injury.

Responsible Refrigerant Practices!
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified. The Federal Clean Air Act
(Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain
refrigerants and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional requirements that
© 2012 Trane All rights reserved

CLCH-SVX07C-EN

Warnings, Cautions and Notices
Ultraviolet (UV) Germicidal Irradiation Lights!
The United States Environmental Protection Agency (EPA)
believes that molds and bacteria inside buildings have the
potential to cause health problems in sensitive
individuals. If specified, Trane provides ultraviolet lights
(UV-C) as a factory-engineered and installed option in
select commercial air handling products for the purpose of
reducing microbiological growth (mold and bacteria)
within the equipment. When factory provided, polymer
materials that are susceptible to deterioration by the UV-C
light will be substituted or shielded from direct exposure
to the light. In addition, UV-C radiation can damage human
tissue, namely eyes and skin. To reduce the potential for
inadvertent exposure to the lights by operating and
maintenance personnel, electrical interlocks that
automatically disconnect power to the lights are provided
at all unit entry points to equipment where lights are
located.

WARNING
Equipment Damage From Ultraviolet (UV)
Lights!
Trane does not recommend field installation of
ultraviolet lights in its air handling equipment for the
intended purpose of improving indoor air quality. High
intensity C-band ultraviolet light is known to severely
damage polymer (plastic) materials and poses a
personal safety risk to anyone exposed to the light
without proper personal protective equipment (could
cause damage to eyes and skin). Polymer materials
commonly found in HVAC equipment that may be
susceptible include insulation on electrical wiring, fan
belts, thermal insulation, various fasteners and
bushings. Degradation of these materials can result in
serious damage to the equipment.
Trane accepts no responsibility for the performance or
operation of our air handling equipment in which
ultraviolet devices were installed outside of the Trane
factory.

CLCH-SVX07C-EN

3

Table of Contents
Warnings, Cautions and Notices . . . . . . . . . . 2

Outdoor Unit Weather Hoods . . . . . . . . . . .34

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Overview of Manual . . . . . . . . . . . . . . . . . . . 6

Stacked Outdoor Units . . . . . . . . . . . . . . . . .34

Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Unit assembly . . . . . . . . . . . . . . . . . . . . . . .35

General Information . . . . . . . . . . . . . . . . . . . . . 7
Operating Environment . . . . . . . . . . . . . . . . 7

Vertical Seam Cap Installation . . . . . . . . .36

Unit Description . . . . . . . . . . . . . . . . . . . . . . . 7
Factory-Mounted Controls . . . . . . . . . . . . . 7
Pre-Packaged Solutions for Controls . . . . 7
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Pre-Installation Requirements . . . . . . . . . . . . . 9
Receiving Checklist . . . . . . . . . . . . . . . . . . . . 9

Assembly hardware . . . . . . . . . . . . . . . . . .34

Flashing Installation . . . . . . . . . . . . . . . . . .37

Indoor Dual-Path SDU/Winterizer Assembly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Horizontal SDU/Winterizer Air Handler
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . .42
Vertical SDU/Winterizer Air Handler
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . .43

External Raceway Assembly . . . . . . . . . . . .44

Resolving Shipping Damage . . . . . . . . . . . . 9

Component Installation Requirements . . . . .45
Diffuser Section . . . . . . . . . . . . . . . . . . . . . . .45

Storage Recommendations . . . . . . . . . . . . 10

Filter Section . . . . . . . . . . . . . . . . . . . . . . . . . .45

General Storage . . . . . . . . . . . . . . . . . . . . 10

Filter Installation . . . . . . . . . . . . . . . . . . . . .45

Long-Term Storage . . . . . . . . . . . . . . . . . 10

Filter Placement . . . . . . . . . . . . . . . . . . . . .46

Outdoor Storage Considerations . . . . . . 10

Fan Section . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Preparing the Unit Site . . . . . . . . . . . . . . . . 10

Fan Isolation . . . . . . . . . . . . . . . . . . . . . . . .62

Roof Curb Installation Checklist . . . . . . . . . 11

Adjusting the Isolators . . . . . . . . . . . . . . . .62

Unit Dimensions and Weights . . . . . . . . . . . 12
Service Clearances . . . . . . . . . . . . . . . . . . . . 12

Seismic Application Requirements . . . . . . .63

Fans/Motors . . . . . . . . . . . . . . . . . . . . . . . . . 20

Anchor Pattern . . . . . . . . . . . . . . . . . . . . . .63

Starter/VFD Weights . . . . . . . . . . . . . . . . . 20

Hurricane Application Requirements . . . . .64

Motor Weights . . . . . . . . . . . . . . . . . . . . . 20

Miami/Dade County Hurricane-Certified Air
Handlers . . . . . . . . . . . . . . . . . . . . . . . . . . .64

Assembly Hardware . . . . . . . . . . . . . . . . . . 9

Installation - Mechanical . . . . . . . . . . . . . . . . 21
Lifting and Rigging . . . . . . . . . . . . . . . . . . . 21
Remove Shipping Tie-Downs . . . . . . . . . 21
General Lifting Considerations . . . . . . . . 22
Lifting Hoods and Pipe Cabinets . . . . . . . 24
Forklifting Considerations . . . . . . . . . . . . 24

Unit Placement and Assembly . . . . . . . . . . 25
Unit Placement . . . . . . . . . . . . . . . . . . . . . 25

4

Anchor Requirements . . . . . . . . . . . . . . . .63

Approved Method for Anchoring Unit . . .64
Hurricane Unit Anchorage . . . . . . . . . . . . .65
Gas Heat Installation . . . . . . . . . . . . . . . . .66
Pipe Cabinet Installation . . . . . . . . . . . . . .67
Pipe Cabinet Hurricane Anchorage . . . . .69

Damper Section . . . . . . . . . . . . . . . . . . . . . . .69
Damper Torque Requirements . . . . . . . . .70

Unit Assembly . . . . . . . . . . . . . . . . . . . . . 26

Opposed-Blade and Parallel-Blade Damper
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Ceiling Suspension . . . . . . . . . . . . . . . . . 26

Multizone Modules . . . . . . . . . . . . . . . . . . . .79

Shipping Gussets . . . . . . . . . . . . . . . . . . . 27

Duct Connections . . . . . . . . . . . . . . . . . . . . . .79

Section-to-Section Assembly . . . . . . . . . 27

Fan Discharge Connections . . . . . . . . . . . .79

Pipe Cabinet Installation . . . . . . . . . . . . . . . 32

Damper Connections . . . . . . . . . . . . . . . . .80
CLCH-SVX07C-EN

Table of Contents
Bottom Opening Duct Installation . . . . . . 81

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

Discharge Plenum Connections . . . . . . . 82

Transmitter Sizing . . . . . . . . . . . . . . . . . .117

Bell Mouth Discharge Connections . . . . 82

Transmitter Calibration . . . . . . . . . . . . . .117

Traq Damper Connections . . . . . . . . . . . . 83

Constant Factor K . . . . . . . . . . . . . . . . . . .118

External Face-and-Bypass Connections . 84

Maintenance . . . . . . . . . . . . . . . . . . . . . . .120

Other Connections . . . . . . . . . . . . . . . . . . 85

External Insulating Requirements . . . . . . .120

Coil Piping and Connections . . . . . . . . . . . . . 86
General Recommendations . . . . . . . . . . . . 86

Routine Maintenance . . . . . . . . . . . . . . . . . . .121
Maintenance Checklist . . . . . . . . . . . . . . . .121

Drain Pan Trapping . . . . . . . . . . . . . . . . . . . 86

Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

Steam Coil Piping . . . . . . . . . . . . . . . . . . . . 87

Throwaway Filters . . . . . . . . . . . . . . . . . .122

Water Coil Piping . . . . . . . . . . . . . . . . . . . . . 89

Permanent Filters . . . . . . . . . . . . . . . . . . .122

Refrigerant Coil Piping . . . . . . . . . . . . . . . . 90

Cartridge or Bag Filters . . . . . . . . . . . . . .122

Liquid Lines . . . . . . . . . . . . . . . . . . . . . . . . 91

Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . . .122

Suction Lines . . . . . . . . . . . . . . . . . . . . . . 92

Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

Installation - Electrical . . . . . . . . . . . . . . . . . . . 99

Inspecting and Cleaning Fans . . . . . . . . .123

Quick Connects . . . . . . . . . . . . . . . . . . . . 101

Bearing Set Screw Alignment . . . . . . . . .123

Controls Interface . . . . . . . . . . . . . . . . . . . . . . 104
Connecting the operator display . . . . . . . 104

Torque Requirements . . . . . . . . . . . . . . .124

Setting up the operator display . . . . . . . . 104

Motor Bearing Lubrication . . . . . . . . . . .124

Calibrating the operator display . . . . . . . 104

Fan Motor Inspection . . . . . . . . . . . . . . . .124

Adjusting brightness and contrast . . . . . 104

Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

External communications port . . . . . . . . 105

Steam and Water Coils . . . . . . . . . . . . . .125

Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Pre-Startup Checklist . . . . . . . . . . . . . . . . . 106

Refrigerant Coils . . . . . . . . . . . . . . . . . . . .125

General Checks . . . . . . . . . . . . . . . . . . . . 106

Moisture Purge Cycle . . . . . . . . . . . . . . . .126

Fan-Related Checks . . . . . . . . . . . . . . . . 106

Cleaning Non-Porous Surfaces . . . . . . . .127

Coil-Related Checks . . . . . . . . . . . . . . . . 106

Cleaning Porous Surfaces . . . . . . . . . . . .127

Motor-Related Checks . . . . . . . . . . . . . . 107

Ultraviolet (UV) Light Maintenance . . . . .128

Unit Operation . . . . . . . . . . . . . . . . . . . . . . 107

Cleaning the Bulbs . . . . . . . . . . . . . . . . . .128

Calculate Motor Voltage Imbalance . . . 107

Replacing the Bulbs . . . . . . . . . . . . . . . . .128

VFD Programming Parameters . . . . . . . 107

Disposal of Bulbs . . . . . . . . . . . . . . . . . . .128

Tension the Fan Belt . . . . . . . . . . . . . . . 109

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .129

Fan Bearing Lubrication . . . . . . . . . . . . .124

Coil Winterization . . . . . . . . . . . . . . . . . . .126

Determine Fan Speed . . . . . . . . . . . . . . 110
Align Fan and Motor Sheaves . . . . . . . . 111
Check Multiple Belts . . . . . . . . . . . . . . . . 111

Airflow Measuring Systems . . . . . . . . . . . 111
Traq™ Dampers . . . . . . . . . . . . . . . . . . . 111
Fan Inlet Airflow Measuring System . . 117
CLCH-SVX07C-EN

5

Introduction
Overview of Manual
Use this manual to install, startup, operate, and maintain
the Performance Climate Changer™ air handler. Carefully
review the procedures discussed in this manual to
minimize installation and startup difficulties.

Nameplate

type of section and functional components, customer
tagging information, the unit serial number, the unit order
number, the build-section position for installation, and the
unit model number.
Note: The unit serial number and order number is
required when ordering parts or requesting service
for a Trane air handler.

Each Performance air handler section includes one or
more nameplate/label (see Figure 1), which identifies the
Figure 1. Performance air handler section nameplate

Trane order number
Unit level serial number
Service model number
Unit tagging
Section location

Functional section type

Notes and additional
section information

Agency listings and/or
agency certifications

6

CLCH-SVX07C-EN

General Information

General Information
Operating Environment
The Performance Climate Changer™ air handler is a
central station air handler for indoor and outdoor
applications. When considering the placement of the air
handler, it is important to consider the operating
environment. The acceptable ambient temperature range
for unit operation is -40ºF to 140ºF (-40ºC to 60ºC).
For heating applications, a special motor may be required
to withstand the higher temperatures. Motors with Class B
insulation are acceptable for ambient temperatures up to
104º F, while motors with Class F insulation can withstand
ambient temperatures to +140º F (60º C).
Note: Units with UL approval have a maximum ambient
temperature requirement of 104ºF. The customer
should provide adequate freeze protection for the
coils. See “Routine Maintenance” on page 121 for
more information.

Unit Description
The Performance Climate Changer air handler is designed
for a variety of controlled-air applications. The basic unit
consists of a fan, heating and/or cooling coils, filters, and
dampers.
Trane air handlers ship as complete assemblies or in subassemblies if shipping splits are required. Some assembly
is required when the unit ships in subassemblies.
A wide variety of components is available for Trane air
handlers, including numerous fan, coil, and filter options,
access sections, diffusers, discharge plenums, face-andbypass sections, UL-approved electric heat sections,
humidifiers, mixing boxes, moisture eliminator sections,
exhaust dampers, controls, blenders and airflow
monitoring stations.
For more information, refer to the following documents,
available from your local Trane sales engineer:
•

CLCH-PRC015-EN, Performance Climate Changer™ Air
Handler catalog

•

CLCH-PRC016-EN, Performance Climate Changer™ Air
Handler quick select

•

CLCH-SVN05A-EN, Roof Curbs for Performance
Climate Changer™ Air Handlers installation
instructions

•

CLCH-PRG003-EN, Performance Climate Changer™
Air handler guide specifications

•

CLCH-SLB017-EN, Performance Climate Changer™ Air
Handler sales brochure

•

CLCH-SVX08A-EN, Gas Heat in Performance Climate
Changer™ Air Handlers installation, operation, and
maintenance guide

CLCH-SVX07C-EN

Factory-Mounted Controls
Trane air handlers are available with a wide selection of
factory-mounted controls, including controllers, motor
starters, and variable frequency drives (VFD).
Most control components are mounted inside the unit.
Depending on the system configuration, this may include
damper actuators, dirty filter switches, averaging
temperature sensors, and low limit switches. VFDs,
starters, controllers, control transformers, static pressure
transducers, DC power supplies, and customer interface
relays will be in enclosures mounted on the inside of the
unit.
Small items that cannot be factory-mounted, such as
space temperature sensors, outside air temperature
sensors, and humidity sensors, will ship inside the control
enclosures, or packaged and shipped inside the fan or
mixing box section. Larger items are shipped inside the
fan section.
Note: All control valves ship directly to the “ship-to
address” from the vendor unless another address
is given on the Trane sales order.
All factory-mounted control systems (controls that are
factory-wired to a unit controller or termination strip)
ordered without starters or variable-frequency drives
(VFDs) are provided with 120 to 24 Vac control
transformers mounted and wired in the auxiliary control
panel. The customer must provide 120 Vac control power,
50/60 Hz, typically 3 amps for unit sizes 3 to 57 and 5 amps
for unit sizes 66 to 100. A dedicated 15-amp circuit is
recommended.
Factory-mounted control systems ordered with factorymounted starters or VFDs are supplied with line to 24 Vac
control transformers. No additional power wiring is
required.

Pre-Packaged Solutions for Controls
If the air handler has been selected using one of Trane’s
pre-packaged solutions options for controls, there are a
number of resources available to aid in commissioning
and start-up of the unit. These resources include
commissioning sheets, graphics and technical application
notes. The technical application notes include the control
sequencing, Trane Graphic Programming (TGP) and Rover
set-up files for the specific unit selected. These resources
are available through your local Trane sales office.

7

General Information
For a more in-depth understanding of controls, refer to the
following manuals:
•

For programmable MP580 controllers

– CNT-SVP01A-EN
•

For hardware installation

– CNT-SVN01A-EN
•

For Trane TR200 Drives

– BAS-SVX19A-EN

Wiring
WARNING
Proper Field Wiring and Grounding
Required!
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes. Failure to
follow code could result in death or serious injury.
Entrances are generally provided for field-installation of
high and low voltage wiring through a pipe/nipple
connection in the unit depending on unit configuration
with or without factory-mounted controls. Before
installation, consider overall unit serviceability and
accessibility before mounting, running wires (power),
making penetrations, or mounting any components to the
cabinet.
Wiring to the air handler must be provided by the installer
and must comply with all national and local codes. The fan
motor nameplate includes a wiring diagram. If there are
any questions concerning the wiring of the motor, write
down the information on the motor nameplate and contact
your local Trane sales office.

8

CLCH-SVX07C-EN

Pre-Installation Requirements
Based on customer requirements, Trane air handlers can
ship as complete units or as individual sections to be field
assembled. Unit sizes 3-120 have an integral base frame
designed with the necessary number of lift points for safe
installation. Indoor air handlers sizes 3-30 are also shipped
with a shipping skid designed for forklift transport.
Unless otherwise specified, Performance indoor air
handlers ship in subassemblies if the total length of the
units exceeds 98 inches or if the total weight exceeds the
limits shown in Table 1. If either the maximum weight or
maximum length is exceeded, the unit will ship in multiple
pieces. See Table 2 for limits for outdoor air handlers.

•

Note: Items that cannot be factory-mounted should ship
inside the control enclosures or should be
packaged inside the fan or mixing box section.
•

Check all control devices attached to the unit exterior
and confirm that they are not damaged.

•

Manually rotate the fan wheel to ensure free
movement of the shaft, bearings, and drive.

•

Inspect the fan housing for any foreign objects.

•

If the unit is shipped in subassemblies, locate the
assembly hardware, which should be packaged and
shipped inside the fan or mixing box section.

•

Inspect and test all piping for possible shipping
damage. Nipples may be installed on coils at the
factory but should always be tightened and tested
before any connections are made. Rough handling
during shipping, in addition to other factors can cause
pipe connections to become loose.

Note: These limits are based on a four-point lift.
Table 1.

Shipping length and weight limitations for
indoor air handlers

Unit Size

Maximum Unit
Weight (lb.)

Maximum Unit
Length (in)

3–31
35, 36
40, 41
50–58
66-120

<2,500
<3,900
<4,300
<5,100
<8000

98
98
98
98
98

Table 2.

Shipping length and weight limitations for
outdoor air handlers

Unit Size

Minimum
Length (in.)

Maximum
Length (in.)

Maximum
Weight (lb.)

3–31
35-58
66-120

24.50
24.50
24.50

360.00
96.001
96.001

8,000
12,000
12,000

Notes:

1Some

specialty sections can be attached to the adjacent section
even if this causes length to be greater than 96 inches, up to
118.44 inches.

Receiving Checklist
Upon receipt of the air handler(s), a thorough inspection
should be performed to note any shipping damage that
may have occurred and that the shipment is complete. All
factory shipping protection should be removed
immediately to allow complete access for the inspection.
The shipping protection provided by the factory is for
transit protection only and should not be used as a jobsite
storage cover.
Note: Delivery cannot be refused. Trane is not
responsible for shipping damage.
•

Check all access doors to confirm that the latches and
hinges are not damaged.

•

Inspect the interior of each section for any internal
damage.

Note: Concealed damage must be reported within
15 days of receipt.
•

Inspect the coils for damage to the fin surface and/or
coil connections.

CLCH-SVX07C-EN

If the unit was ordered with factory-mounted controls,
locate all sensors.

Note: Trane will not be responsible for any leak at the field
connections. Coils have been factory pressure
tested before shipping.

Assembly Hardware
Trane air handlers ship with all necessary assembly
hardware and gasket material. This hardware is packaged
in either a clear plastic envelope or cardboard box and can
be found inside the fan, mixing box, or access section. If
there is not enough space inside the section, a crate or
pallet will be loaded onto the bed of the truck. Check the
Parts List on the Field Assembly drawing against the
contents of the crate. Do not proceed with unit assembly
until verification that all materials are present. Sometimes
it is necessary to use more than one section to ship
hardware. Please check all sections thoroughly before
contacting your local Trane sales engineer to report
missing hardware.

Resolving Shipping Damage
Trane air handlers ship freight-on-board (FOB), meaning
that the unit belongs to the customer the moment the
delivery truck leaves the factory. If damage has occurred to
the unit during shipment, follow these instructions:
Note: Trane is not responsible for shipping damage.
1. Make specific notation, describing the damage, on the
freight bill. Take photos of the damaged material if
possible.
2. Report all claims of shipping damage to the delivering
carrier immediately and coordinate carrier inspection
if necessary.
Note: Do not attempt to repair the unit without consulting
the delivering carrier.
9

Pre-Installation Requirements
3. Notify your Trane sales representative of the damage
and arrange for repair.

•

Note: Do not attempt to repair the unit without consulting
the Trane sales representative.
4. Keep the damaged material in the same location as it
was received.
Note: It is the receiver's responsibility to provide
reasonable evidence that concealed damage was
not incurred after delivery.

Storage Recommendations
NOTICE:
Corrosion!
Use only canvas tarps to cover air handlers. Plastic
tarps can cause condensation to form in and on the
equipment, which could result in corrosion damage or
wet storage stains.
Note: All factory shipping protection should be removed.
This wrapping is for transit protection only and
should not be used for jobsite storage.
Indoor air handlers and/or field-installed accessories that
must be stored for a period of time before installation must
be protected from the elements. A controlled indoor
environment is recommended for proper storage.
Outdoor air handlers require no special protection for
storage before installation. Keep the equipment in the
original container for protection and ease of handling.
Note: The warranty does not cover damage to the unit or
controls due to negligence during storage.

Outdoor Storage Considerations
Outdoor storage is not recommended for units that will be
installed indoors. However, when outdoor storage is
necessary, several things must be done to prevent
damage:
Note: Keep the equipment on the original wooden blocks/
skid for protection and ease of handling.
•

Select a well-drained area, preferably a concrete pad or
blacktop surface.

•

Place the unit on a dry surface or raised off the ground
to assure adequate air circulation beneath the unit and
to assure no portion of the unit will contact standing
water at any time.

•

Loosen the belt tension on the drive belts.

•

Cover the unit securely with a canvas tarp.

•

Do not stack units.

•

Do not pile other material on the unit.

Preparing the Unit Site
•

Ensure the installation site can support the total weight
of the unit (see “Unit Dimensions and Weights” on
page 12 for approximate section weights; refer to the
unit submittals for actual weights).

•

Allow sufficient space for adequate free air and
necessary service access (see “Service Clearances”
on page 12). Refer to submittals for specific
minimums.

•

Allow room for supply and return piping, ductwork,
electrical connections, and coil removal.

•

Ensure there is adequate height for condensate drain
requirements. See “Drain Pan Trapping” on page 86.

General Storage
The unit controller and all other electrical/electronic
components should be stored in conditions of
-20ºF to 120°F and 5 to 95 percent relative humidity, noncondensing. Electrical components are not moisturetolerant. Factory protective coverings should be removed
prior to storage.

Long-Term Storage
For longer periods of storage, allow proper clearance
around the unit to perform periodic inspection and
maintenance of the equipment.

Check the motor lubrication; remove and clean grease
plugs and check for the presence of moisture in the
grease. If moisture is present, remove the motor and
send it to an authorized repair shop for bearing
inspection/replacement. If no moisture if present, refer
to the motor manufacturer’s lubrication
recommendation for proper lubrication.

Note: If unit is installed in a mechanical room on a pad,
inadequate height may necessitate core-drilling
the floor to attain proper trap height. Insufficient
height could inhibit condensate drainage and
result in flooding the unit and/or equipment room.

While the unit is in storage:
•

Every two weeks, rotate the fan and motor shaft 30
revolutions by hand. Check for free rotation.

•

Every six months, check fan shaft bearings and grease
lines. Add grease using a manual grease gun following
the lubrications recommendations in “Fan Bearing
Lubrication” on page 124.

10

CLCH-SVX07C-EN

Pre-Installation Requirements

NOTICE:
Microbial Growth!

Figure 2.

The floor or foundation must be level and the
condensate drain at the proper height for proper coil
drainage and condensate flow. Standing water and wet
surfaces inside the equipment can become an
amplification site for microbial growth (mold), which
could cause odors and damage to the equipment and
building materials.
•

Provide adequate lighting for maintenance personnel
to perform maintenance duties.

•

Provide permanent power outlets in close proximity to
the unit for installation and maintenance.

•

Depending upon job requirements, the customer may
need to provide 120 Vac power to the unit controller.
Refer to submittals for more information. A dedicated
15-amp circuit is recommended.

•

•

•

Screw securing roof
felt to rigid insulation
or 2 x 10

Flashing
(field-supplied)

Confirm the roof curb or foundation of the mounting
platform is level and large enough to accommodate
the unit. Refer to the unit submittals for specific
dimensions.

•

Wiring for the air handler must be provided by the
installer and must comply with all national and local
electrical codes.

Cross section of typical curb installation on
new construction

Roofing felt
(field-supplied)

4 x 4 cant
(field-supplied)

Roof deck

Support channels

1. Verify that the roof structure can adequately support
the combined weight of the unit and curb assembly.
2. Ensure that the selected installation location provides
sufficient service and operational clearances.
3. Remove any twist within the curb due to roof supports
and square the curb.

If the unit integral base frame ceiling suspension
provisions are not used, the installer/contractor must
provide a ceiling-suspended mounting frame
designed to support the length, width, and weight of
the entire air-handling unit. See “Ceiling Suspension”
on page 26 for more information.

4. Level the curb.

Rooftop curb-mounted units must be sealed tightly to
the curb. Use proper sealants and roof-to-curb sealing
techniques to prevent water and air leakage. Refer to
CLCH-SVN05A-EN Roof Curbs for Performance
Climate Changer™ Air Handlers Installation
Instructions.

8. Bring field supplied roofing felt up to the top of the curb
nailing strips. Nail felt into place.

Note: Preparation of the roof curb or pier mount and roof
openings should be completed prior to lifting the
unit to the roof.

Roof Curb Installation Checklist

5. Secure the curb to the roof support members.
6. Install 2-inch thick boards or rigid insulation around the
curb.
7.

Install cant strips around the curb.

9. Install field supplied flashing under the lip of the curb
flanges and over the felt.
10. Apply sealant to the four corners.
11. Caulk all joints between the curb and the roof.
Attach the gasket material to the curb’s top flanges (entire
perimeter) and to the supply and return air duct opening
panel flanges.

See CLCH-SVN05A-EN Roof Curbs for Performance
Climate Changer™ Air Handlers Installation Instructions
for information on installing roof curbs.
It is recommended that the curb be installed directly on the
support members and fastened to the supports using tack
welds or other equivalent methods. Properly supported
decking should be installed inside the air handler section
of the curb when this method is used. See Figure 2.

CLCH-SVX07C-EN

11

Unit Dimensions and Weights
Note: For specific dimensional and weight information, refer to the unit submittals. The dimensions and weights in this
manual are approximate. Trane has a policy of continuous product and product data improvement and reserves
the right to change design and specifications without notice.

Service Clearances

provides enough room to replace the heat exchanger in
the event of failure. The section side panels must be
removed to access the heat exchanger. Refer to Table 3 for
service clearance recommendations for the air handler.

A minimum clearance of the section width plus 12 inches
on the access door side of the gas heat section is
recommended for routine maintenance. This clearance
Figure 3. Service Clearance

Filter mixing box

Coil

VFD
UV
lights

A
B
C

Fan
D
Gas heat
E
Access
door

F

Table 3.

Service clearance dimensions (inches)
3

4

6

8

A (filter)

Component

48

48

48

48

48

48

48

48

48

48

48

48

B (coil)

48

59

59

66

77

82

87

87

95

77

95

77 109

87 115

96 128

96 141 110 141 110 156 156 170 197

C (UV Lights)

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

52

56

58

58

43

59

59

63

75

81

83

83

58

75

58

75

83

83

75

59

83

83

83

83

83

83

83

83

75

83

61

61

61

61

61

61

61

61

64

64

64

64

64

64

64

64

64

64

64

64

64

64

64

64

64

64

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

48

51

54

58

61

60

51

66

51

66

58

66

60

70

60

77

66

77

66

93

93 101 101

C (Catalytic Air
Cleaner)
D (external starter
or VFD)
D (internal starter
or VFD)
E (fan)
F (gas heat - Ext
Vestibule)
F (gas heat - Int
Vestibule)

10 12 14 17 21 22 25 26 30 31 35 36 40 41 50 51 57 58 66 80 100 120
48

48

48

48

48

48

48

48

48

48

52

56

58

58

48

48

48

n/a n/a

89

90 108 100 100 105 115 n/a 115 n/a 118 n/a 136 n/a 140 n/a 156 n/a 156 n/a 170 179 180 n/a

n/a n/a

56

63

74

79

84

84

92 n/a

92 n/a 106 n/a 112 n/a 125 n/a 138 n/a 138 n/a 153 153 167 194

Note: At a minimum, the above clearance dimensions are recommended on one side of the unit for regular service and maintenance. Refer to as-built
submittal for locations of items such as filter access doors, coil, piping connections, motor locations, hoods, pipe cabinets, etc. Sufficient clearance
must be provided on all sides of unit for removal of access panels, plug panels, or section-to-section attachment brackets. Clearance for starters, VFDs,
or other high-voltage devices must be provided per NEC requirements.
Note: For specific dimensional and weight information, refer to the unit submittals. The dimensions and weights in this manual are approximate. Trane has
a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

12

CLCH-SVX07C-EN

Unit Dimensions and Weights
Table 4.

Section dimensions (inches) and weights (pounds) - unit sizes 3-30

Nominal airflow

1500

2000

3000

4000

5000

6000

7000

8500

10,500

11,000

12,500

13,000

15,000

Airflow at 625 fpm

2169

3475

4338

4581

6075

8331

9025

11,806

13,456

13,194

16,944

18,231

19,025

Unit size
Height - indoor unit
Width
Height for outdoor unit
includes base drip lip
Weight add for outdoor unit
(lbs/in. of unit length)

3

4

6

8

10

12

14

17

21

22

25

26

30

29.00

29.00

35.25

37.75

37.75

41.50

41.50

49.00

52.75

67.25

61.50

85.50

61.50

31.50

44.00

44.00

50.50

61.50

66.50

72.00

72.00

80.00

61.50

80.00

61.50

93.50

36.25

36.38

42.63

45.13

45.13

49.25

49.25

56.75

60.50

n/a

69.25

n/a

69.25

1.66

1.91

1.91

2.04

2.27

2.40

2.51

2.51

2.68

n/a

2.68

n/a

2.94

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

48.05

57.43

60.55

66.67

74.92

80.55

84.67

88.41

96.28

89.63

100.65

98.73

110.78

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

Access or blank
-Small horizontal

-Medium horizontal

-Extended-medium horizontal

-Medium-large horizontal

-Large horizontal or turning

-Extra-large horizontal or
turning
-Ducted inlet or ducted
outlet section
Blender

59.91

71.18

75.25

82.74

92.66

99.61

104.57

109.45

119.10

111.84

124.79

123.71

136.97

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

74.73

88.37

93.62

102.82

114.83

123.43

129.44

135.74

147.62

139.60

154.97

154.93

169.71

24.50

24.50

24.50

26.50

26.50

26.50

26.50

24.50

24.50

26.50

24.50

26.50

24.50

121.60

107.28

113.84

132.94

148.08

159.18

166.74

164.66

178.99

170.14

188.17

189.27

205.72

34.00

34.00

34.00

36.00

36.00

36.00

36.00

36.00

34.00

36.00

46.00

46.00

46.00

137.75

164.85

179.46

208.50

235.01

257.70

271.35

293.42

314.60

315.97

413.45

428.50

457.18

36.00

41.00

41.00

44.00

42.50

42.50

42.50

44.00

50.25

50.25

56.50

56.50

56.50

143.68

188.92

205.18

240.63

263.83

288.68

303.68

335.49

407.29

395.09

476.83

494.06

525.93

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

48.10

57.40

60.50

66.70

74.90

80.50

84.70

88.40

96.30

89.60

100.60

98.70

110.80

19.00

24.50

24.50

26.50

36.00

36.00

36.00

36.00

34.00

30.500

46.00

36.00

46.00

94.86

132.71

146.30

173.34

238.64

264.12

276.73

303.71

323.59

300.15

427.13

385.06

470.25

52.00

52.00

52.00

52.00

55.00

58.00

58.00

58.00

56.00

651.00

694.00

Cool Dry Quiet (CDQ)
Desiccant Dehumidification 495.00

792.00 1011.00 1165.00 1326.00 1390.00 1793.00

n/a

56.00
1876.00

n/a

58.00
2029.00

Coils
-Small horizontal (with 4-row
UW)

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

116.10

148.55

174.35

205.79

244.49

285.13

307.44

352.47

433.37

433.22

502.46

523.01

572.50

-Medium horizontal (with 8row UW)

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

168.65

220.23

265.58

318.97

382.53

450.07

488.32

569.79

700.27

690.67

817.63

840.58

941.48

-Extended-medium horizontal
(with 8-row UW)

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

185.58

239.53

286.06

341.16

406.80

476.00

516.35

599.24

737.96

721.58

858.03

878.74

985.30

-Medium-large horizontal
(with 10-row W)

24.50

24.50

24.50

26.50

26.50

26.50

26.50

24.50

24.50

26.50

24.50

26.50

24.50

270.61

359.79

433.08

554.88

656.63

777.26

-Large horizontal or vertical
(with 10-row W)

34.00

34.00

34.00

36.00

36.00

36.00

302.77

396.45

471.99

597.03

702.74

826.53

36.00

41.00

41.00

44.00

42.50

42.50

42.50

44.00

50.25

295.00

364.00

413.00

480.00

563.00

622.00

666.00

731.00

876.00

-Electric Heat Coil

884.93 1013.57 1262.10 1175.58 1478.66 1503.93 1503.93
36.00

36.00

34.00

36.00

46.00

46.00

46.00

938.18 1081.30 1333.70 1234.32 1652.36 1652.73 1652.73
n/a

46.00
1012.00

n/a

56.50
1244.00

Integral-face-and-bypass coil
-Less than 4 rows

-4 rows
Controls section (includes
largest available VFD)

CLCH-SVX07C-EN

n/a

26.50

26.50

26.50

26.50

26.50

26.50

26.50

26.50

26.50

n/a

355.20

367.21

470.21

541.93

585.86

619.66

733.14

792.88

858.31

43.00

43.00

43.00

43.00

n/a

43.00

43.00

43.00

43.00

43.00

n/a

543.54

560.74

725.48

835.34

901.70

26.50

26.50

26.50

805.52 1047.84 940.46
43.00

43.00

43.00

950.23 1131.90 1216.48 1313.83 1399.66 1613.03 1439.40

28.50

28.50

28.50

28.50

28.50

28.50

28.50

28.50

28.50

28.50

28.50

28.50

28.50

184.00

208.00

253.00

272.00

295.00

315.00

327.00

350.00

428.00

419.00

453.00

464.00

487.00

13

Unit Dimensions and Weights
Table 4.

Section dimensions (inches) and weights (pounds) - unit sizes 3-30

Unit size
Diffuser

3

4

6

8

10

12

14

17

21

22

25

26

30

10.00

10.00

10.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

19.00

19.00

19.00

45.70

55.08

58.20

80.39

90.31

97.26

102.22

107.10

116.75

109.49

152.62

152.58

167.36

Discharge plenum
-Horizontal

-Vertical

Energy Wheel

34.00

34.00

34.00

36.00

36.00

36.00

36.00

36.00

34.00

36.00

46.00

46.00

46.00

135.40

162.50

177.11

206.15

232.66

255.35

269.00

291.07

312.25

313.62

411.10

426.15

454.83

36.00

41.00

41.00

44.00

42.50

42.50

42.50

44.00

50.25

159.90

211.48

233.54

275.69

306.29

339.58

358.68

401.43

486.37

52.00

52.00

52.00

55.00

58.00

58.00

58.00

56.00

609.00

663.00

765.00

n/a

911.00 1085.00 1208.00 1269.00 1484.00

n/a

n/a

56.50
570.00
56.00
1595.00

n/a

n/a

56.50
634.27
58.00
1868.00

Face-and-Bypass Dampers
-Face-and-bypass

-External face-and-bypass
-Internal face-and-bypass or
face damper only

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

105.60

129.06

141.70

157.63

178.68

199.15

209.53

224.50

248.05

137.25

265.62

152.58

291.36

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

22.00

19.00

27.75

19.00

122.68

155.15

167.79

190.70

219.68

241.45

255.80

270.77

300.08

153.91

317.53

207.22

353.22

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

107.95

140.46

149.91

174.82

203.43

227.60

241.91

255.18

291.55

137.25

306.62

152.58

341.36

42.50

42.50

44.00

50.25

Fan
-Belt-drive plenum fan with
motor
-Housed FC fan with motor

-Housed AF/BC fan with motor
-Direct-drive plenum fan with
motor

36.00

41.00

41.00

44.00

42.50

397.87

538.34

631.36

682.55

875.00

951.91 1069.39 1239.89 1443.56

36.00

41.00

41.00

44.00

42.50

42.50

368.77

449.75

544.28

589.00

721.69

882.15

36.00

41.00

41.00

44.00

42.50

42.50

378.87

467.35

574.68

649.40

849.71

920.08

42.50

44.00

50.25

n/a
50.25

56.50
1494.52
56.50

n/a
56.50

56.50
1751.34
56.50

904.21 1054.64 1329.38 1295.80 1487.55 1511.37 1710.85
42.50

44.00

50.25

50.25

56.50

56.50

56.50

942.14 1098.21 1432.10 1444.53 1572.28 1609.10 1797.21

36.00

41.00

41.00

44.00

42.50

42.50

42.50

373.16

516.35

535.05

692.86

795.54

912.52

936.26

44.00

50.25

50.25

56.50

56.50

56.50

991.99 1380.92 1237.09 1541.05 1600.04 1652.91

Filters
-Side load 2-in. angled

-Side load 4-in. angled
-Side load cartridge 12-in. or
short bag 18-in.
-Side load 2-in. flat

-Side load 4-in. flat
-Side load 2-in. and 4-in.
combination flat
-Long bag 30-in.

-Front-load HEPA

-Front-load cartridge

-Front-load short bag

14

24.50

24.50

24.50

26.50

26.50

26.50

26.50

24.50

24.50

24.50

24.50

24.50

24.50

134.55

163.83

175.66

202.44

225.96

251.82

265.94

314.12

347.50

348.70

403.70

418.53

454.19

24.50

24.50

24.50

26.50

26.50

26.50

26.50

24.50

24.50

24.50

24.50

24.50

24.50

141.89

176.87

192.86

209.64

247.16

254.22

273.54

352.07

379.13

361.27

409.37

470.37

465.65

24.50

24.50

24.50

26.50

26.50

26.50

26.50

24.50

24.50

24.50

24.50

24.50

24.50

125.03

159.79

176.46

220.46

234.88

284.12

303.60

335.02

365.40

342.50

439.69

440.65

479.36

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

70.27

86.53

91.98

103.59

117.74

133.81

141.07

148.02

165.52

160.19

182.07

177.12

198.93

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00
249.73

81.56

104.62

114.08

117.09

143.40

142.66

154.67

202.82

213.64

189.17

217.75

254.10

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

100.62

128.19

139.09

144.56

174.73

185.69

201.37

252.57

268.17

252.01

288.98

326.16

326.58

36.00

41.00

41.00

44.00

42.50

42.50

42.50

44.00

50.25

50.25

46.00

40.00

46.00

159.54

203.31

223.70

269.26

289.43

330.97

349.19

382.94

461.96

395.90

488.89

462.06

523.37

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

240.36

262.50

346.16

368.01

407.75

439.62

452.92

569.28

692.30

595.47

750.47

837.36

822.10

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

215.15

237.79

285.59

310.12

341.11

386.04

399.01

470.25

525.86

468.47

580.13

552.53

651.47

45.00

45.00

45.00

45.00

45.00

45.00

45.00

45.00

45.00

45.00

45.00

45.00

45.00

222.35

246.75

279.75

306.39

335.16

369.65

383.67

432.15

473.60

487.79

518.05

573.98

566.55

CLCH-SVX07C-EN

Unit Dimensions and Weights
Table 4.

Section dimensions (inches) and weights (pounds) - unit sizes 3-30

Unit size

3

4

- 200 MBH

n/a

n/a

- 300 MBH

n/a

n/a

- 360 MBH

n/a

- 560 MBH

6

8

10

12

14

17

21

57.00

60.00

60.00

22

25

26

30

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

Gas heat
57.00

57.00

59.00

57.00

752.92

797.85

852.48

912.57

n/a

n/a

n/a

n/a

n/a

77.00

73.00

68.00

71.00

69.00

937.05 1011.83 1074.91

73.00

73.00

901.27

953.49

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

- 700 MBH

n/a

n/a

n/a

n/a

n/a

n/a

n/a

- 860 MBH

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

- 1000 MBH

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

1093.23 1131.38 1127.89 1211.08 1264.50
71.00

69.00

1191.99 1246.59
83.00

75.00

1479.92 1503.43
81.00
1606.36
87.00
1364.25

n/a

n/a

n/a

n/a

n/a

69.00
1348.04
65.00
1307.47
75.00
1599.35
81.00
1711.24
90.00
1497.35

n/a

n/a

n/a

n/a

n/a

66.00
1298.88
66.00
1441.79
76.00
1745.65
76.00
1804.77
85.00
1560.01

Humidifier
-Building Steam

-Atmospheric Steam

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

125.00

146.00

165.00

184.00

226.00

269.00

286.00

324.00

354.00

368.00

398.00

500.00

452.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

19.00

127.00

168.00

178.00

203.00

252.00

276.00

312.00

339.00

396.00

344.00

432.00

396.00

528.00

Mixing box
-with angled filters

34.00

34.00

34.00

36.00

36.00

36.00

36.00

36.00

34.00

36.00

46.00

46.00

46.00

137.75

164.85

179.46

208.50

235.01

257070

271.35

293.42

314.60

315.97

413.45

428.50

457.18

36.00

41.00

41.00

44.00

42.50

42.50

42.50

44.00

50.25

51.00

56.50

191.06

247.07

272.06

321.58

356.08

396.49

418.78

463.57

555.65

549.18

646.61

-reduced length with side/top/ 23.40
back/bottom airfoil damper
131.80

23.40

23.40

23.40

23.40

23.40

28.40

28.40

28.40

158.30

177.90

202.80

231.60

257.60

298.40

328.40

370.10

61.00

61.00

66.00

71.00

71.00

71.00

82.00

-with front/back Traq and top
Traq dampers

n/a

28.40
408.10

n/a

n/a

56.50
715.15
32.50
485.80

Multizone
- 3-deck vertical discharge

n/a

n/a

- 2-deck vertical discharge

n/a

n/a

-3-deck horizontal discharge

n/a

n/a

-2-deck horizontal discharge

n/a

n/a

1125.00 1313.00 1671.00 1899.00 2063.00 2211.00 2757.00
61.00
763.00
52.00

61.00

66.00

71.00

71.00

71.00

82.00

899.00 1099.00 1266.00 1380.00 1526.00 1882.00
52.00

52.00

57.00

57.00

57.00

72.00

1031.00 1219.00 1511.00 1729.00 1892.00 2034.00 2603.00
52.00

52.00

701.00

832.00

52.00

57.00

57.00

57.00

72.00

982.00 1145.00 1253.00 1396.00 1755.00

n/a

n/a

n/a

n/a

82.00
2991.00
82.00
2108.00
72.00
2829.00
72.00
1975.00

n/a

n/a

n/a

n/a

82.00
3425.00
82.00
2413.00
72.00
3267.00
72.00
2264.00

Silencer
-3 ft

38.00

38.00

38.00

38.00

38.00

38.00

38.00

38.00

38.00

38.00

38.00

38.00

38.00

198.00

256.00

286.00

319.00

359.00

442.00

461.00

512.00

573.00

562.00

699.00

659.00

800.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

308.00

391.00

436.00

483.00

541.00

678.00

704.00

780.00

873.00

Trane Catalytic Air Cleaning 36.00
System (TCACS)
334.73

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

367.14

389.21

434.66

470.05

497.59

514.12

544.30

599.38

690.80

665.11

777.83

711.12

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

76.02

93.64

98.69

120.26

135.22

146.68

155.07

162.95

179.84

-5 ft

UV light

CLCH-SVX07C-EN

858.00 1073.00 1005.00 1215.00

n/a

14.00
188.71

n/a

14.00
218.33

15

Unit Dimensions and Weights
Table 4.

Section dimensions (inches) and weights (pounds) - unit sizes 3-30
Sections below are for outdoor units only

Unit size

3

4

6

8

10

12

14

17

21

22

25

26

30

Diagonal economizer
46.00

49.00

50.00

48.00

53.00

53.00

57.00

52.00

63.00

187.00

231.00

256.00

276.00

334.00

365.00

407.00

414.00

534.00

46.00

49.00

50.00

48.00

53.00

53.00

57.00

52.00

63.00

204.00

247.00

271.00

290.00

349.00

378.00

426.00

431.00

555.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

93.30

113.30

124.30

140.20

159.60

176.70

186.80

204.00

229.10

-Back inlet hood with airfoil and
Traq dampers

22.25

44.00

44.00

50.38

61.50

66.38

71.88

72.00

79.88

22.00

45.00

47.00

47.00

52.00

69.00

74.00

74.00

74.00

-Side inlet hood with airfoil and
Traq dampers

20.00

20.00

20.00

20.00

22.88

22.88

31.38

25.75

29.13

17.00

17.00

22.00

22.00

31.00

42.00

50.00

50.00

50.00

20.00

20.00

20.00

20.00

22.88

22.88

31.38

25.75

29.13

12.00

12.00

16.00

16.00

21.00

29.00

30.00

30.00

30.00

45.50

49.00

49.50

48.00

53.00

53.00

56.50

52.00

62.50

41.00

37.00

45.00

61.00

68.00

76.00

137.00

174.00

179.00

-with airfoil dampers
-with airfoil damper and one
side Traq damper
Exhaust damper section for
outdoor unit

n/a

n/a

n/a

57.00
548.00
57.00
565.00
19.00
250.50

n/a

n/a

n/a

63.00
649.00
63.00
689.00
19.00
280.40

Hoods

-Exhaust hood with airfoil
damper
-Economizer inlet hood

n/a

n/a

n/a

n/a

79.88
128.00
25.75
84.00
25.75
59.00
57.00
214.00

n/a

n/a

n/a

n/a

93.38
166.00
27.88
96.00
27.88
67.00
62.50
224.00

Pipe cabinet weight
15 inches long, 36 inches deep 104.00

104.00

116.00

120.00

120.00

127.00

127.00

141.00

148.00

n/a

164.00

n/a

24 inches long, 36 inches deep 122.00

122.00

135.00

140.00

140.00

147.00

147.00

162.00

170.00

n/a

187.00

n/a

187.00

48 inches long, 36 inches deep 169.00

169.00

184.00

191.00

191.00

200.00

200.00

218.00

228.00

n/a

249.00

n/a

249.00

96 inches long, 36 inches deep 263.00

263.00

284.00

293.00

293.00

305.00

305.00

331.00

343.00

n/a

373.00

n/a

373.00

Note:

164.00

1Nominal airflow is based on 500 fpm through a nominal coil (i.e. 500xunit size 8=4000 cfm). 2Airflow@625 fpm through the flat filter (maximum filter velocity).
3Height includes standard 2.5-inch base frame for sizes 3-57 and 6-inch base frame for sizes 66-120. 4Height includes 6-inch base frame for sizes 3-120.5Variable
lengths available from 14-96 inches. 6Fan section weights include the heaviest fan with the largest ODP motor available. 7Nominal length and height shown for
discharge plenums. Variable plenum height and length is available from 0.5 to 1.5 of nominal. 8Access section required with humidifiers for dispersion distance.

Table 5.

Section dimensions (inches) and weights (pounds) - unit sizes 31-120

Nominal airflow

15,500

17,500

18,000

20,000

20,500

25,000

25,500

28,500

29,000

33,000

40,000

50,000

60,000

Airflow at 625 fpm

22,138

23,263

25,000

25,519

30,138

34,375

34,306

39,581

39,722

47,225

53,475

65,106

76,388

Unit size

31

35

36

40

41

50

51

57

58

66

80

100

120

Height - indoor unit

85.50

67.25

89.00

67.25

104.00

75.75

104.00

85.50

116.25

92.50

107.50

119.75

119.75

Width

72.00

100.00

80.00

112.50

80.00

125.50

93.50

125.50

93.50

140.50

140.50

154.50

182.00

n/a

75.00

n/a

75.00

n/a

84.38

n/a

94.13

n/a

97.63

112.63

124.88

124.88

n/a

3.02

n/a

3.28

n/a

3.73

n/a

6.12

n/a

2.57

2.57

2.80

3.25

n/a

n/a

n/a

n/a

Height for outdoor unit
includes base drip lip
Weight add for outdoor unit
(lbs/in. of unit length)
Access or blank
-Small horizontal

-Medium horizontal

-Extended-medium horizontal

-Medium-large horizontal

-Large horizontal or turning
-Extra-large horizontal or
turning

16

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

106.61

211.11

207.98

227.92

224.38

254.69

242.54

265.35

255.92

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

15.00

15.00

15.00

15.00

133.18

241.53

238.68

260.24

257.35

290.28

277.55

302.41

292.80

430.36

449.60

493.59

549.13

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

166.39

279.57

277.04

300.64

298.56

334.76

321.32

348.74

338.89

476.36

497.88

545.85

605.56

26.50

24.50

29.50

24.50

29.50

24.50

29.50

24.50

29.50

24.50

24.50

24.50

24.50

202.93

321.40

319.24

345.09

343.89

410.37

369.46

427.50

389.59

574.11

600.46

656.89

725.47

49.00

54.00

60.00

60.00

46.00

48.00

46.00

48.00

46.00

48.00

46.00

48.00

46.00

467.28

514.42

509.00

557.22

561.11

639.24

615.72

682.26

661.42

n/a

n/a

n/a

n/a

63.75
624.86

n/a

63.75
675.12

n/a

68.50
809.42

907.93 1036.33 1242.40 1387.96
n/a

n/a

n/a

n/a

CLCH-SVX07C-EN

Unit Dimensions and Weights
Table 5.

Section dimensions (inches) and weights (pounds) - unit sizes 31-120

Unit size
-Ducted inlet or ducted
outlet section
Blender

31

35

36

40

41

50

51

57

58

66

80

100

120

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

10.00

106.60

211.10

208.00

227.90

224.40

254.70

242.50

265.30

255.90

372.90

389.30

428.30

478.60

40.00

48.00

48.00

48.00

48.00

48.00

54.00

48.00

48.00

49.00

54.00

60.00

60.00

449.80

540.76

495.07

593.46

616.31

675.51

656.33

731.75

718.81

n/a

n/a

n/a

10.00

10.00

10.00

Cool Dry Quiet (CDQ)
Desiccant Dehumidification

n/a

56.00
2914.00

n/a

56.00
3122.00

n/a

59.00
4224.00

970.30 1112.23 1345.03 1567.62
n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

15.00

15.00

15.00

15.00

Coils
-Small horizontal (with 4-row
UW)

10.00

10.00

10.00

10.00

10.00

10.00

594.43

690.59

675.23

754.61

792.51

934.27

-Medium horizontal (with 8row UW)

14.00

14.00

14.00

14.00

14.00

14.00

968.56 1094.27 1095.29 1219.78 1290.73 1561.92 1523.08 1759.58 1686.19 2220.94 2558.94 3094.04 3638.44

922.65 1044.33 1014.74
14.00

14.00

14.00

19.00
19.00
19.00
19.00
19.00
19.00
19.00
19.00
19.00
19.00
19.00
19.00
-Extended-medium horizontal 19.00
(with 8-row UW)
1009.31 1148.70 1138.74 1279.06 1337.01 1613.56 1572.75 1813.06 1738.19 2275.46 2615.73 3163.21 3712.02
26.50

24.50

29.50

24.50

29.50

24.50

29.50

24.50

29.50

24.50

24.50

24.50

24.50

-Medium-large horizontal
(with 10-row W)

1737.73 1955.08 2017.86 2216.68 2355.51 2754.49 2791.28 3215.01 3116.00 3876.05 4488.82 5499.42 6713.50

-Large horizontal or vertical
(with 10-row W)

1896.66 2131.70 2161.23 2401.84 2508.26 2985.19 2955.21 3454.40 3287.59

46.00

-Electric Heat Coil

n/a

48.00

63.75
1666.00

46.00

n/a

48.00

63.75
1825.00

46.00

n/a

48.00

68.50
2267.00

46.00

n/a

48.00

48.00
2297.00

46.00

n/a

n/a
49.00
2857.00

n/a

n/a

n/a

n/a

n/a

n/a

29.50

29.50

29.50

Integral-face-and-bypass coil
-Less than 4 rows

-4 rows
Controls section (includes
largest available VFD)
Diffuser

26.50

29.50

29.50

29.50

29.50

29.50

29.50

29.50

29.50

29.50

1190.19 1129.66 1407.86 1168.40 1449.00 1793.80 1640.15 1956.80 1817.25 2322.61 2378.60 2865.77 2936.42
43.00

43.00

43.00

43.00

43.00

1836.97 1677.52 2148.28 1720.20 2196.84

n/a

n/a

n/a

n/a

28.50

28.50

28.50

28.50

28.50

28.50

28.50

28.50

28.50

496.00

637.00

649.00

674.00

698.00

745.00

747.00

787.00

790.00

n/a

n/a

n/a

n/a

28.50

28.50

28.50

28.50

964.00 1031.00 1146.00 1266.00

19.00

24.50

24.50

24.50

24.50

24.50

24.50

24.50

24.50

27.50

37.25

37.25

37.25

164.04

319.05

316.89

342.74

341.54

381.33

367.11

397.35

387.24

571.76

715.78

781.92

860.66

46.00

49.00

54.00

60.00

60.00

Discharge plenum
-Horizontal

46.00

48.00

46.00

48.00

46.00

48.00

46.00

48.00

464.93

627.24

621.68

677.47

682.71

772.27

745.34

821.10

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

19.00

19.00

19.00

-Vertical

n/a

Energy Wheel

n/a

63.75
876.48
61.00
2403.00

n/a

n/a

63.75
949.58
65.00
2742.00

n/a

n/a

68.50
1136.53
65.00
3111.00

798.32 1058.35 1198.64 1423.88 1585.80

Face-and-Bypass Dampers
-Face-and-bypass

-External face-and-bypass
-Internal face-and-bypass or
face damper only

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

164.04

473.39

274.69

556.23

296.21

630.10

318.97

714.61

336.54

888.33

27.75

39.00

27.75

22.00

27.75

22.00

27.75

22.00

27.75

22.00

222.16

566.46

341.83

660.36

368.32

740.29

395.56

831.66

973.60 1093.88 1205.53
39.00

39.00

39.00

417.20 1256.07 1348.84 1498.11 1643.69

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

164.04

502.53

274.69

575.62

296.21

678.20

318.97

714.61

336.54

888.33

19.00

19.00

19.00

954.26 1082.84 1194.50

Fan
-Belt-drive plenum fan with
motor
-Housed FC fan with motor

-Housed AF/BC fan with motor

CLCH-SVX07C-EN

n/a
73.25

53.50
2368.54
63.75

n/a
80.50

53.50
2740.37
63.75

n/a
80.50

57.50
3263.68
68.50

n/a
88.00

59.50
3599.82
68.50

n/a
88.00

61.00

63.00

73.75

82.25

4062.62 4745.62 6223.51 7341.11
84.00

92.00

96.00

96.00

1832.18 2400.18 2423.46 2603.08 2771.01 3151.89 3312.75 3235.63 3414.05 4201.67 4922.58 5297.62 5600.08
73.25

63.75

80.50

63.75

80.50

68.50

88.00

68.50

88.00

84.00

92.00

96.00

96.00

1979.55 2429.71 2568.99 2695.61 2863.54 3221.42 3382.28 3305.16 3483.58 4311.38 5101.29 6025.44 6891.90

17

Unit Dimensions and Weights
Table 5.

Section dimensions (inches) and weights (pounds) - unit sizes 31-120

Unit size

31

35

36

40

41

50

51

57

58

66

80

100

120

63.75
80.50
63.75
80.50
68.50
88.00
68.50
88.00
84.00
92.00
96.00
96.00
-Direct-drive plenum fan with 73.25
motor
1673.71 2057.87 2804.47 2406.73 3039.54 3469.95 4268.88 3545.86 4349.06 4903.24 5456.86 7176.65 7382.51
Filters
-Side load 2-in. angled

-Side load 4-in. angled
-Side load cartridge 12-in. or
short bag 18-in.
-Side load 2-in. flat

-Side load 4-in. flat
-Side load 2-in. and 4-in.
combination flat
-Long bag 30-in.

-Front-load HEPA

24.50

24.50

24.50

24.50

24.50

27.50

24.50

27.50

24.50

469.97

593.86

562.37

649.06

652.32

770.02

688.86

797.89

777.14

24.50

24.50

24.50

24.50

24.50

27.50

24.50

27.50

24.50

477.66

594.02

567.56

631.64

663.25

768.20

747.25

805.97

778.73

24.50

24.50

24.50

24.50

24.50

27.50

24.50

27.50

487.55

681.24

637.25

668.25

762.69

878.57

874.81

934.14

24.50

27.50

27.50

27.50

27.50

989.00 1088.02 1157.16 1282.20
27.50

27.50

27.50

27.50

999.89 1105.14 1201.91 1338.65
27.50

27.50

27.50

27.50

980.36 1239.99 1364.91 1746.31 1903.54

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

15.00

15.00

15.00

15.00

198.17

319.66

322.85

358.18

358.29

408.69

392.33

438.52

426.12

598.12

637.02

716.56

817.63

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

15.00

15.00

15.00

15.00

241.97

359.20

350.39

375.13

404.69

451.33

461.82

498.71

476.21

657.87

729.15

803.46

913.90

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

322.00

476.00

484.13

504.37

570.61

600.40

646.20

671.64

667.97

853.08

37.25

37.25

37.25

37.25

37.25

37.25

37.25

37.25

37.25

37.25

505.93

657.41

700.77

716.04

802.78

826.72

883.10

906.56

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

874.09

981.02 1078.09 1165.92
37.25

37.25

37.25

944.63 1094.61 1270.51 1393.17 1549.80
40.00

40.00

40.00

40.00

40.00

985.62 1176.01 1128.46 1267.90 1397.21 1449.89 1520.35 1561.45 1845.81 2141.38 2553.97 2924.72

40.00

40.00

40.00

40.00

637.18

867.68

796.62

922.78

45.00

45.00

45.00

45.00

45.00

45.00

45.00

622.53

750.89

778.04

799.75

885.35

917.08

968.65

- 200 MBH

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

- 300 MBH

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

- 360 MBH

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

- 560 MBH

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

74.00

n/a

n/a

-Front-load cartridge

-Front-load short bag

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

40.00

931.37 1093.06 1061.94 1173.89 1168.54 1449.48 1671.46 1923.09 2155.95
45.00

45.00

45.00

45.00

45.00

45.00

979.84 1048.59 1231.49 1365.35 1538.95 1696.33

Gas heat

- 700 MBH

n/a

- 860 MBH

n/a

- 1000 MBH

n/a

66.00
1402.11
66.00
1594.61
73.00
1895.19
80.00
2046.29
80.00
1723.73
101.00

n/a

n/a

n/a

n/a

1468.07
75.00
1804.11
75.00
2098.72
81.00
1844.68
105.00

n/a

n/a

n/a

n/a

- 1250-1750 MBH

n/a

- 2000 MBH

n/a

n/a

n/a

n/a

-2400 MBH

n/a

n/a

n/a

n/a

2540.84

n/a

64.00

2717.94

n/a

64.00
1853.53
74.00
2190.52
74.00
2280.52
77.00
2325.57
106.00
3264.84
114.00
3758.71

n/a

n/a

n/a

n/a

n/a

n/a

n/a

64.00
1900.53
74.00
2241.91
74.00
2331.91
77.00
2082.86
106.00
2942.76
114.00
3430.29
n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

74.00
2490.63
74.00

2580.63 2198.81
74.00

74.00

n/a

n/a

84.00

92.00

2300.63 1918.81 3156.04 3125.34
109.00

109.00

92.00

102.00

3309.39 2949.68 3878.54 3886.60
112.00

112.00

109.00

109.00

3688.33 3320.33 4503.52 4391.21
118.00

112.00

121.00

119.00

3890.31 3455.33 4715.85 4668.51

Humidifier
-Building Steam

-Atmospheric Steam

18

14.00

14.00

14.00

14.00

14.00

14.00

14.00

14.00

561.00

544.00

622.00

599.00

684.00

782.00

773.00

897.00

14.00

15.00

15.00

15.00

15.00

807.00 1123.00 1215.00 1363.00 1551.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

19.00

471.00

581.00

508.00

665.00

570.00

724.00

683.00

803.00

742.00

19.00

19.00

19.00

19.00

977.00 1078.00 1265.00 1492.00

CLCH-SVX07C-EN

Unit Dimensions and Weights
Table 5.

Section dimensions (inches) and weights (pounds) - unit sizes 31-120

Unit size

31

35

36

40

41

50

51

57

58

66

80

100

120

49.00

54.00

60.00

60.00

Mixing box
-with angled filters

46.00

48.00

46.00

48.00

46.00

48.00

46.00

48.00

46.00

467.28

519.12

513.70

561.92

565.81

653.36

629.45

653.36

675.14

-with front/back Traq and top
Traq dampers

n/a

-reduced length with side/top/
back/bottom airfoil damper

n/a

63.75
966.49
35.50
708.50

n/a

n/a

63.75
1073.80
38.50
795.10

n/a

n/a

68.50
1261.78
41.50
947.60

n/a

n/a

68.50
1365.59
41.50
1022.70

n/a

n/a

946.02 1077.83 1287.99 1433.55
84.00

92.00

96.00

96.00

1907.28 2151.42 2473.12 2790.48
41.50

41.50

47.00

53.00

1328.50 1453.60 1731.30 2025.40

Multizone
- 3-deck vertical discharge

n/a

- 2-deck vertical discharge

n/a

-3-deck horizontal discharge

n/a

-2-deck horizontal discharge

n/a

92.00
4263.00
92.00
2965.00
78.00
4020.00
78.00
2725.00

n/a

n/a

n/a

n/a

92.00
4732.00
92.00
3267.00
78.00
4471.00
78.00
3006.00

n/a

n/a

n/a

n/a

96.00
5739.00
96.00
3986.00
78.00
5276.00
78.00
3633.00

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

38.00

38.00

38.00

38.00

38.00

38.00

38.00

Silencer
-3 ft

-5 ft

38.00

38.00

38.00

826.00

918.00

951.00

62.00

62.00

62.00

38.00

38.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

62.00

1272.00 1335.00 1478.00 1439.00 1558.00 1795.00 1759.00 1945.00 2030.00 2313.00 2555.00 3230.00 3786.00

Trane Catalytic Air Cleaning 36.00
System (TCACS)
825.55
UV light

38.00

974.00 1013.00 1226.00 1142.00 1332.00 1312.00 1573.00 1741.00 2196.00 2555.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

36.00

881.59

916.32

935.35

14.00

14.00

14.00

14.00

945.79 1044.28 1043.64 1148.17 1132.38 1362.38 1451.30 1707.27 1881.13
14.00

14.00

14.00

14.00

14.00

15.00

15.00

15.00

15.00

n/a

325.48

n/a

352.71

n/a

394.34

n/a

419.43

n/a

574.52

604.11

667.60

758.72

83.00

86.00

93.00

93.00

Sections below are for outdoor units only
Diagonal economizer
-with airfoil dampers

n/a

-with airfoil damper and one
side Traq damper

n/a

Unit size

31

Exhaust damper section for
outdoor unit

n/a

75.00
931.00
75.00
973.00
35
24.50
450.80

n/a

n/a
36
n/a

83.00
1062.00
83.00
1101.00
40
24.50
489.90

n/a

n/a
41
n/a

72.00
1120.00
72.00
1169.00
50
24.50
565.60

n/a

n/a
51
n/a

76.00
1223.00
76.00
1266.00
57
22.40
586.60

n/a

n/a
58
n/a

1680.00 1851.00 2173.00 2396.00
83.00

86.00

93.00

93.00

1722.00 1920.00 2290.00 2494.00
66

80

100

120

22.40

22.40

22.40

22.40

755.30

820.10

935.50 1058.30

126.00

140.00

140.00

167.25

317.00

344.00

491.00

566.00

37.25

37.25

43.00

48.75

189.00

258.00

412.00

415.00

Hoods
-Back inlet hood with airfoil
and Traq dampers

n/a

-Side inlet hood with airfoil and
Traq dampers

n/a

-Exhaust hood with airfoil
damper

n/a

-Economizer inlet hood

n/a

99.88
176.00

112.38
n/a

40.88
122.00

40.88
n/a

40.88
73.00

128.00
40.88

n/a

75.00
195.00

195.00

77.00
83.00

n/a

275.00

n/a

n/a

n/a

n/a

125.38
230.00
44.75
161.00
39.63
93.00
72.00
358.00

n/a

n/a

n/a

n/a

125.38
270.00
37.25
174.00
37.25
114.00
75.50
345.00

n/a

n/a

n/a

n/a

37.25

37.25

43.00

48.75

129.00

174.00

206.00

221.00

83.00

86.00

93.00

93.00

418.00

522.00

629.00

778.00

265.00

Pipe cabinet weight
15 inches long, 36 inches deep

n/a

175.00

n/a

175.00

n/a

191.00

n/a

209.00

n/a

215.00

243.00

265.00

24 inches long, 36 inches deep

n/a

199.00

n/a

199.00

n/a

216.00

n/a

236.00

n/a

243.00

273.00

298.00

298.00

48 inches long, 36 inches deep

n/a

263.00

n/a

263.00

n/a

284.00

n/a

309.00

n/a

317.00

354.00

385.00

385.00

96 inches long, 36 inches deep

n/a

392.00

n/a

392.00

n/a

421.00

n/a

454.00

n/a

466.00

517.00

558.00

558.00

CLCH-SVX07C-EN

19

Unit Dimensions and Weights

Fans/Motors
Starter/VFD Weights
Fan weights do not include starter/VFD weights. Table 6
gives approximate starter/VFD weights.
Table 6.

Approximate starter and VFD weights per horsepower (lbs.)

Horsepower

1

1.5

2

3

5

7.5

10

15

20

25

30

40

50

60

75

100

Starter1

65

65

65

65

65

65

65

65

65

97

97

97

97

97

97

97

125
97

VFD2

123

123

132

124

125

136

151

162

177

197

241

325

332

243

258

294

314

Note: 1These weights represent the largest available starter. 2VFD weights include transformer, distribution block, and enclosure.

Motor Weights
Fan weights provided in this manual include the heaviest
ODP (open drip-proof) motor. Approximate motor weights
are shown in Table 7.
Table 7.

Approximate motor weights (pounds)

Motor Type

Motor
RPM 3/4

1-1/2

2

91

3

Energy efficient ODP (EEOP)

1800

NEMA Premium ODP (HEOP)

1200

39

77

NEMA Premium TEFC (HETC) 1200

56

96

NEMA Premium ODP (HEOP)

1800

36

42

47

76

NEMA Premium TEFC (HETC) 1800

47

54

56

NEMA Premium ODP (HEOP)

3600

36

36

NEMA Premium TEFC (HETC) 3600

36

53

20

24

Horsepower
1

5

7-1/2 10

15

20

25

30

40

50

60

75 100 125

29
147 126

249

300 375 443 594 667

109 148 185

310

341 423 481 614 655

82

118

148 234 263 330 379 488 521 698 808 1114 1238

91

108

159

185 285 315 452 481 578 670 808 889 1239 1466

37

89

104

173

203 267 243 261 407

62

85

103

154

176 287 322 448 496

CLCH-SVX07C-EN

Installation - Mechanical
Lifting and Rigging
Remove Shipping Tie-Downs
Prior to unit placement, remove the shipping tiedowns. See Figure 4.
Figure 4.

Isolator tie-down removal
Screw (4 per angle)
lockwasher and hex nut

Angle, isolator
tie-down (4 required)

•

Shipping tie-downs are located at each corner of the
isolation base. See Figure 5, Figure 6, Figure 7, and
Figure 8.

Figure 5.

Isolator tie-down for unit sizes 3-8

Tiedown

Figure 7.

Required
clearance

Figure 6.

Required
clearance

Isolator tie-down removal for unit sizes 66-120 Figure 8.

Required
clearance

Isolator tie-down for unit sizes 10-30

Tiedown

Belt-drive plenum fan tie down

Tiedown
Required
clearance

CLCH-SVX07C-EN

21

Installation - Mechanical
•

Access for removal of shipping tie-downs for unit sizes
3-30 is available through the fan section access door or
opposite drive-side plug panel. See Figure 9.

Figure 9.

Plug panel plate
Remove
tie-down

:

NOTICE:
Equipment Damage!
Keep skid in place until unit is ready to set. Do not
move the unit or subassembly without the skid in
place as shipped from the factory. Premature skid
removal could result in equipment damage.
Before preparing the unit for lifting, estimate the
approximate center of gravity for lifting safety. Because of
placement of internal components, the unit weight may be
unevenly distributed, with more weight in the coil and fan
areas. Approximate unit weights are provided in “Unit
Dimensions and Weights” on page 12. Refer to the unit
submittals for actual section weights. Test the unit for
proper balance before lifting.

Remove plug panel plate

•

Access for removal of shipping tie-downs for unit sizes
3-30 is available through the fan section access door or
opposite drive-side plug panel. See Figure 9.

•

Remove the bolt. This will release the isolator and
make it possible to remove the pipe or spacer.

•

Replace plug panel if applicable.

Note: For outdoor air handlers, after isolator tie-down is
removed, remove the paper backing from the butyl
tape around plug panel perimeter prior to replacing
plug panel.

General Lifting Considerations
WARNING
Risk of Unit Dropping!
Always place, assemble, and suspend modules/
subassemblies one at a time. Placing, assembling, and/
or suspending more than one module/subassembly at
a time could result in module/subassemblies dropping
and crushing technicians which could result in death,
serious injury, or equipment damage.

WARNING
Improper Unit Lift!

For outdoor air handlers, preparation of the roof curb or
pier mount and roof openings must be completed before
lifting to the roof. See CLCH-SVN04A-EN Roof Curbs for
Performance Climate Changer Air Handlers installation
instructions for details.

WARNING
Heavy Objects!
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift. Other lifting arrangements could cause
equipment or property damage. Failure to follow
instructions above or properly lift unit could result in
unit dropping and possibly crushing operator/
technician which could result in death or serious injury.
Always rig subassemblies or sections as they ship from
the factory. Never bolt sections together before rigging.
•

Make the loop of the sling parallel to the direction of
airflow, if possible.

•

When hoisting the unit into position, use the proper
rigging method, such as straps, slings, spreader bars,
or lifting lugs for protection and safety.

•

Use all lifting lugs provided. See Figure 10 and Table 8
for lug hole sizes and location.

Test lift unit approximately 24 inches to verify proper
center of gravity lift point. To avoid dropping of unit,
reposition lifting point if unit is not level. Failure to
properly lift unit could result in unit dropping and
possibly crushing operator/technician which could
result in death or serious injury and possible equipment
or property-only damage.

22

CLCH-SVX07C-EN

Installation - Mechanical

Figure 10.

Lug holes

Figure 11.

Diameter

Lifting detail for unit sizes 3 to 120

Rigging and spreader
bars furnished
by others

Width

Height

Pipe cabinet
or hood lug

Table 8.
Section

Unit lug

Lug hole sizes
Location

Unit Size

Width

Height

Indoor

3-21, 25, 30

0.88

1.38

Indoor

22, 26, 31,
35-58

1.38

1.25

Indoor

66-120

1.25

2.75

Outdoor

3-30

1.25

2.75

Pipe Cabinet

Outdoor

3-120

2.5-in. diameter

Hood

Outdoor

3-120

1-in. diameter

Unit Lug
Hole Size

•

For unit sizes 3 to 120 with integral base frame, use
field-provided spreader bars and slings to rig units and
subassemblies as shown in Figure 11. The air handler
is not designed to be lifted or rigged from the top of the
unit.

CLCH-SVX07C-EN

•

For outdoor units, never stack the pipe cabinet or inlet
hood on the unit as it is being lifted.

•

Do not attach the intake/exhaust hood or pipe cabinet
to the unit prior to lifting the unit. Doing so may
damage the equipment. Attach the hoods to the unit
only after all sections are in place.

•

For outdoor air handlers, all shipping supports and
crating on the face of the sections must be removed to
permit proper fit-up and sealing of the surfaces.
Dispose of properly.

23

Installation - Mechanical

Lifting Hoods and Pipe Cabinets
WARNING
Risk of Unit Dropping!
Always place, assemble, and suspend modules/subassemblies one at a time. Placing, assembling, and/or suspending
more than one module/subassembly at a time could result in module/subassemblies dropping and crushing
technicians which could result in death, serious injury, or equipment damage.

Figure 12. Lifting inlet and exhaust hoods

Figure 13. Lifting pipe cabinets
Rigging and spreader
bar provided by
contractor

Recommended
attachment to
lifting lugs

Recommended
attachment to
lift lugs

Forklifting Considerations
NOTICE:
Equipment Damage!
Do not use a fork lift on air handlers or subassemblies
larger than size 30. Improper use of fork lifts on units
larger than size 30 could result in equipment damage.
Trane is not responsible for equipment damage
resulting from improper fork lifting practices.
Note: Do not use a forklift on outdoor air handlers or
indoor air handlers/subassemblies larger than size
30.

Figure 14. Fork lift points with base rail

Unfasten external bracket
to remove wooden toe cleat.

48 in.

Wooden toe
cleat or metal
cross beam

For unit sizes 3-30, a forklift may be used to lift a single
section or small subassembly, provided the forks extend
under both ends of the base frame, or as indicated in
Figure 14. The forks should not contact the bottom of the
air handler. Units should only be lifted from the proper end
identified by the lifting label on the unit. A lifting crane or
other means should be used for larger units where forks
cannot extend under both base rails.

24

CLCH-SVX07C-EN

Installation - Mechanical

Unit Placement and Assembly
If the air handler ships in subassemblies or in individual
sections, some assembly is required, including:
•

Ceiling-suspended indoor unit assembly; see See
“Ceiling Suspension” on page 26.

•

Section-to-section assembly; see “Section-to-Section
Assembly” on page 27.

WARNING
Toxic Fumes!
Keep open flame away from unit exterior or interior. Do
not weld or use cutting torch on the exterior or interior
of the unit. The unit contains polyurethane insulation.
Flame could produce toxic gas which could result in
death or serious injury.
:

NOTICE:
Equipment Damage!
The internal sections of this unit containing electrical
components must not exceed 104o F operating
temperature. Internal sections of the unit which do not
contain electrical components must not exceed 200o F
temperature. Failure to comply with temperature
requirements could result in equipment damage.

Refer to the unit submittals and unit tagging for correct
placement of all sections. If there are any discrepancies
between the submittals and the unit tagging, contact your
local Trane representative before proceeding.
Following the order of the sections on the unit submittals
and tagging, individually place each unassembled section
or subassembly in the appropriate installation location.
Note: Prior to placing fan section in the appropriate
installation location, verify shipping tie-downs
have been removed.
For outdoor units, the pipe cabinet must also be mounted
as an individual section. Refer to “Pipe Cabinet
Installation” on page 32 for specific instructions.
When mounting the unit on a roof curb, make sure the
gasketing between the roof curb and unit base provides an
airtight seal.
When mounting the unit on a pier mount, locate one pier
at each corner as a minimum, directly underneath any
shipping split (ensure full support under each side) and
then every four feet at equally spaced intervals around the
perimeter of the unit. Both the unit and the pipe cabinet
should be supported by their base around the entire
perimeter. See Figure 15 and Figure 16.

Figure 15. Piers located in each corner and spaced evenly
every four feet

Unit Placement
WARNING
Risk of Unit Dropping!
Always place, assemble, and suspend modules/
subassemblies one at a time. Placing, assembling, and/
or suspending more than one module/subassembly at
a time could result in module/subassemblies dropping
and crushing technicians which could result in death,
serious injury, or equipment damage.

NOTICE:
Microbial Growth!
The floor or foundation must be level and the
condensate drain at the proper height for proper coil
drainage and condensate flow. Standing water and wet
surfaces inside the equipment can become an
amplification site for microbial growth (mold), which
could cause odors and damage to the equipment and
building materials.

Piers

Note: Piers beneath shipping splits must be structurally
sound to support the weight of the unit.

If a unit arrives in sections, then each section must be
individually hoisted, set on the housekeeping pad, roof
curb, or pier mount and then assembled.
CLCH-SVX07C-EN

25

Installation - Mechanical

Figure 16. Side view with two shipping splits - locate
one pier directly under each shipping split

ceiling-suspended mounting frame designed to support
the length, width, and weight of the entire air-handling
unit. See “Unit Dimensions and Weights” on page 12 for
approximate weights.
Note: It is the building engineer’s responsibility to size the
structural channels and to provide the appropriate
hangers.
Structural channels in a field-provided frame can be
mounted parallel to airflow or perpendicular to airflow:
•

4 ft

Note: Piers beneath shipping splits must be structurally
sound to support the weight of the unit.

For parallel-to-airflow channels, size channels based
on a four-point load distribution (see Figure 17.

Figure 17. Typical suspension method-parallel channels

For proper operation, the unit must be installed level (zero
tolerance) in both horizontal axes. For vertical discharge
units, allow space under the unit for supply air ductwork
connections.

Unit Assembly
Note: Air handlers often include optional factoryprovided casing penetration entry points for fieldprovided wiring. Consider overall unit
serviceability and accessibility before mounting,
running wires (power), making cabinet
penetrations, or mounting any components to the
cabinet.
See “Component Installation Requirements” on page 45
for special assembly/installation considerations.

Removing the Shipping Skid
Remove the wooden shipping blocks, wooden toe cleat if
there is one, and end cleats prior to lowering unit into final
position or installing the unit to the roof curb.

•

For perpendicular-to-airflow channels, size channels
based on the load distribution of the individual
sections and install the channels so that both ends of
every section are supported (see Figure 18).

Figure 18. Typical ceiling suspension-perpendicular
channels

Ceiling Suspension
WARNING
Risk of Unit Dropping!
Do not use mounting legs for ceiling suspension,
external isolation, or unit support during module
placement. Mounting legs are designed only to secure
the unit to the floor, housekeeping pad, or platform.
Improper use of the mounting legs as described above
could result in unit dropping and crushing technicians
which could result in death or serious injury, and
equipment damage.
Note: Ceiling suspension is not recommended for units
larger than size 57 unless using a field-provided
mounting frame.

Using a Field-Provided Mounting Frame
If a field-provided mounting frame is used for ceiling
suspension, the installer/contractor must provide a
26

CLCH-SVX07C-EN

Installation - Mechanical
Using Integral Base Frame

•

Suspend the unit (on both sides of the unit) at each
shipping split lug as well as the four corners of the unit
(see Figure 19). See Figure 10 and Table 8 on page 23
for lug hole sizes.

•

Bolt shipping splits together.

Figure 19. Ceiling suspension for unit sizes 3-57

The hanger rods must extend through the bottom of the
base lug. It is the building engineer’s responsibility to
provide the appropriate hangers.

Shipping Gussets
Hole diameter
is 0.625 inches

If using the factory-provided integral base frame for ceiling
suspension, individual sections and/or subassemblies will
have base frame shipping splits and base frame lifting
lugs. When using the base frame for ceiling suspension:

Prior to pulling the shipping splits together, the shipping
gussets (see Figure 20) should be removed to simplify
panel removal (except for units required OSHPD
certification). If there is enough access after joining the
shipping splits, the gussets can be removed after they are
joined. The exception to this rule is for size 35-50 stacked
units. For these sizes, the gusset should be left in place for
the lower level unit unless they are installed in a shipping
split that contains a coil.
Do not mistake the coil structural gusset (see Figure 21)
used on unit sizes 66-120 with the shipping gussets.

Figure 20. Shipping gusset

Figure 21.

Section-to-Section Assembly

together. The gasketing for section-to-section joints is a
closed cell foam with adhesive backing.

Air handlers ship with all necessary assembly hardware
and gasket material. The hardware should be packaged in
either a clear plastic envelope or cardboard box inside the
fan section, access section, or mixing box.
The number of sections to be assembled often makes it
necessary to use more than one section to ship the
assembly material; therefore, check all sections
thoroughly before contacting your Trane sales
representative to report missing items.
Sections are joined with gasketing applied to one of the
mating surfaces and hardware to bolt the sections

CLCH-SVX07C-EN

Coil structural gusset

To assemble the unit:
1. Locate the mounting hardware and gasket material.
2. All shipping supports and crating on the face of the
sections must be removed and discarded to permit
proper fit-up and sealing of the surfaces. Remove any
shipping bolts located on the mounting surfaces of the
sections (see Figure 22).
3. Apply the gasketing to one of the mating surfaces; see
Figure 22, Figure 23, and Figure 24.

27

Installation - Mechanical

Figure 22. Section-to-section installation

Figure 23. Coil-section-to-downstream-section bolt up
with splash guard

Gasket
0.375 in. T x 0.750 in. W

Butyl Tape
0.375 in. T x 0.375 in. W

Indoor units - Gasket
0.375 in. T x 0.750 in. W (3-30)
1.0 in. T x 1.0 in. W (35-120)
Outdoor units - Butyl tape
0.375 in. T x 0.375 in W (3-120)

Figure 24. Stacked unit assembly (shown for sizes 3-50)

Note: Reference the appropriate controller manual for
more details on the installation of units with
factory-mounted controls.

Figure 25. Horizontal section-to-section quick connects

Gasket
X23010544010
1.00 inches T
x
4.00 inches W

Use 2 x 4 inch wood to protect
hands from accidental pinching

5. Use a bar clamp to pull adjacent shipping section lifting
lugs together.
6. For indoor units sizes 66-120 and for outdoor units size
10-120, a wedge block is provided to aid in pulling and
aligning the units together. Attach the wedge blocks to
both sides of the units being pulled together, matching
the correct wedge block with the correct hole pattern.
See Figure 29, p. 30.
4. If the unit is equipped with factory-mounted controls,
move adjacent subassembly within six inches and
fasten quick connects where the sections bolt together
(see Figure 25).

28

7.

Verify that the subassembly with the overhang profile
on the roof is higher than the mating subassembly. If it
is not, raise one end of the subassembly and bring the
unit together. See Figure 26.

8. Due to unlevel floor and platforms, the roof may be
misaligned as shown in Figure 26. A common solution
CLCH-SVX07C-EN

Installation - Mechanical
is to raise one end of the shipping section to clear the
hemming before pulling the units together.

9. In addition, an adjustment can also be made to the
height of the roof of either subassembly. At the center

Figure 26. Roof alignment (indoor unit only)

Figure 27.

(width-wise) of the unit, measure the height of each
adjacent subassembly and verify that the
subassembly with the overlap sheet metal is higher
than the mating subassembly roof. If it is not, adjust
the height of either subassembly by loosening the
screws in the vertical channels or component
structure and adjust the height of the roof. See
Figure 27 and Figure 28).

Adjust height of roof by adjusting vertical channels

Loosen screws along
width of unit for roof
height adjustment.

Figure 28. Adjust height of roof by loosening screws

Loosen screws along
width of unit for roof
height adjustment.

CLCH-SVX07C-EN

29

Installation - Mechanical
10. For unit sizes 3-30, bolt the unit base frames together
using 5/16-inch bolts (see Figure 29).
11. For unit sizes 35-120, bolt the unit base frames together
using ½-threaded rod (see Figure 29).
12. For sizes 66-120 only, bolt through the wedge blocks
using a ½-threaded rod (see Figure 29). Alternate

between tightening on the lifting lug bolts and wedge
block bolts until the shipping section comes together.
13. Use straps and come-alongs to compress the
gasketing and pull the sections together along the
height of the unit.

Figure 29. Base frame split assembly

Wedge block for
indoor unit size 66-120
outdorr unit size 10-120

Threaded rod
0.500-13 x 10.50

Washer
0.656 ID x 1.312 OD
Nut
0.500-13 hex machine

Leached self-driller screw
0.250-14 x 0.75

Lifting lugs

Washer
Hex machine bolt fully
Size 3-30 - 0.375 ID x 0.875 OD
threaded zinc plated
Size 66-120 - 0.656 ID x 0.312 OD
Size 3-30 - 5/16 x 6 in.
Size 66-120 - 0.500-13 x 10 in.
Nut hex flange (HW)
Size 3-30 - 0.313-18
Size 66-120 - 0.500-13

30

CLCH-SVX07C-EN

Installation - Mechanical
14. Install the section-to-section screws inserting the
appropriate screws through the overlapping flanges
using a powered impact gun and taking care not to
strip the screws. Outdoor air handlers will ship with a
seam cap that is to be installed over the section-to-

section seams. Factory-supplied butyl tape must be
applied over the seam prior to seam cap being applied.
See Figure 30.

Figure 30. Section-to-section seam cap installation

See
Detail A

Seam cap
Butyl tape

Detail A

See
Detail B
Roof overhang

Butyl tape

Detail B
15. For outdoor air handlers, attach roof overhang angle
with number 10 screws. Join outdoor roof panels
together at the seams in the direction perpendicular to
airflow and secure them in place with 5/16-inch x 3/4inch bolts and 5/16 lock nuts. Install the roof joint strip
to cover the seam between two outdoor roof panels in
the perpendicular to airflow direction of. Use 3/8-inch
butyl tape to cover the seam between two outdoor roof
panels overhang at the side the unit. Bend joint strip
CLCH-SVX07C-EN

over roof panel and use two number 10 sheet metal
screws (one in each roof panel) to secure joint strip.
Trim the roof joint strip to insure that it does not
protrude more than 1/16-inch beyond outdoor roof
overhang (see Figure 31).

31

Installation - Mechanical

Figure 31.

Join outdoor roof panels at the seams

See
Detail A

Butyl tape
Detail A

Pipe Cabinet Installation
1. After air handler is completely installed and checked
for accuracy of level and square, pipe cabinet install
can begin.
2. Remove pipe cabinet base cross member by removing
the four bolts and nuts.
3. Check to ensure that the structure the pipe cabinet is to
be installed on is square and level.

4. Install 3/8-inch x 3/8-inch white butyl tape to flanged
side of pipe cabinet wall and remove paper backing
from tape. See Figure 32.
5. Lift cabinet into place on to pipe cabinet curb.
6. Slide pipe cabinet tight up against the sidewall of the
air handler.
7.

Check pipe cabinet side walls to ensure they are plumb.

8. Apply a bead of caulk along the corner between the
pipe cabinet and air handler wall prior to installing
connecting angle.

Figure 32. Pipe cabinet installation

Butyl tape

32

CLCH-SVX07C-EN

Installation - Mechanical
9. Install inside corner cap. See Figure 33 Detail A and B.
10. Install 3/8-inch x 3/8-inch white butyl tape to unit wall
where pipe cabinet roof connects.

11. Lift pipe cabinet roof into place and attach to unit wall
with screws. See Figure 33.

Figure 33. Pipe cabinet installation details

A
See Detail B

Top view
Roof and base parts
rmoved for clarity

Detail A

AHU

Pipe cabinet
Ribbed Butyl tape
Ribbed Butyl tape
(see note)

Detail B
Ribbed
Butyl tape

AHU
outdoor roof

Pipe cabinet
wall

Inside
corner cap

Screw:
10-16 x .750
self-driller
Pipe cabinet
outer roof

Slots provided to allow
final adjustment
of outer roof

CLCH-SVX07C-EN

Inside corner cap
Ribbed Butyl tape
(see note)

Note: Seam to be sealed prior to
attaching inside corner cap with
10-16 x .750 self-driller screws

33

Installation - Mechanical

Outdoor Unit Weather Hoods

to be connected to the air handler by the installing
contractor. See Figure 34.

1. Per the unit drawing determine mounting location of
the unit weather hoods.

Note: It is required that the hoods be sealed to the unit
using factory-provided butyl/caulk tape.

2. Using the factory provided screws mount the weather
hoods to the unit.
3. On larger units, weather hoods may be large enough to
require angled down supports. In those cases, the
angles are shipped attached to the hood but will need
Figure 34. Hood installation

AHU outdoor roof

Butyl caulk tape
1.00 W x .125T.

Screw self-driller
10-16 x .750
Butyl caulk tape
1.00 W x .125T.

Nut-Hex .31-18
Bolt .313-18 x .750 Hex

Hood

Bracket Support
Angle Hood Support
(when required)
Bolt .313-18 x .750 Hex

Nut-Hex .31-18
Detail A

Stacked Outdoor Units
Assembly hardware
Table 9.
Item
1
2
3
4
5
6
7
8
9

34

Parts list for outdoor stacked units
Description
Gasket: 1.00T x 4.00W
Bracket: Stacked unit
Screw: 0.313-18 x 0.875 sheet metal
Screw: 10-16 x 0.750 self driller
Tape: Butyl 0.38T
Tape: Ribbed Butyl
Plate: Vertical seam cap
Tape: 0.12T x 1.00W, gray Butyl
Guard: perpendicular to airflow flashing

Item
10
11
12
13
14
15
16
17

Description
Guard: Energy recovery end cover
Guard: Energy recovery end cover
Guard: Direction of airflow flashing
Guard: Flashing seam cover
Adhesive/sealant: Flex polyurethane
Bracket: Hood support
Angle: Hood support
Screw: 0.250-14 x 0.750 self driller

CLCH-SVX07C-EN

Installation - Mechanical

Unit assembly
1. See Figure 35. Apply gasket (Item 1) on top of lower
unit. Compress gasketing to ensure a good air seal
between upper and lower sections.
2. Place upper unit on lower unit.
3. Remove lifting lugs from top unit and attach stacking
brackets (Item 2) to top and bottom units using screws
(Item 3 and Item 4). See Detail A in Figure 35. Stacking

brackets (Item 2) are to be used on the right and left
sides at each shipping split section end and also on
front and back of the unit.
4. Apply Butyl tape (Item 5) to one side of the shipping
split section.
5. Slide shipping split sections together, pulling tight
using lifting lugs and threaded rod on bottom and
straps or pipe clamps on top.

Figure 35. Stacked unit assembly

Remove lugs from upper
baserail prior to installing
stacked unit bracket

Detail A

(1) Gasket:
1.00T x 4.00W

(3) Screw:
0.313-18 x 0.875
sheetmetal
Part# X25240049010

(2) Bracket:
stacked unit

(2) Bracket:
stacked unit

(5) Tape:
Butyl 0.38T
(5) Tape:
Butyl 0.38T

(2)Bracket:
stacked unit
Part# 4953-0203

See Detail A
(2) Bracket:
stacked unit

CLCH-SVX07C-EN

(4) Screw:
10-16 x 0.750
self-driller
Part# X25020634020

(1) Gasket:
1.00T x 4.00W

35

Installation - Mechanical

Vertical Seam Cap Installation
1. See Figure 36. Apply ribbed Butyl tape (Item 6) over all
vertical shipping split seams (see Detail A). First level
ribbed Butyl tape (Item 6) starts 1/2 inch below second
level wall panel (see Detail B), and extends down
beyond the bottom of the first level wall panel onto the
base rail at least one inch (see Detail C). Second level
ribbed Butyl tape (Item 6) starts at bottom of wall panel
on second level (see Detail B) and runs up to the top of
the second level wall panel.

2. Secure vertical seam cap (Item 7) over ribbed Butyl
tape (Item 6) with screws (Item 4) (see Detail A). First
level vertical seam cap (Item 7) starts at bottom of hem
on roof panels (see Detail B) and extends down onto
the base rail at least one inch (see Detail D in Figure 41).
Vertical seam cap (Item 7) on second level starts at
bottom of wall panel and extends up (see Detail B).
Second level vertical seam cap (Item 7) may extend
onto the roof panel.

Figure 36. Vertical seam cap installation

Detail B

Detail A

Second level

Shipping split seams
Ribbed Butyl tape and
seam cap flush with
bottom of wall panel

(6) Tape:
Ribbed Butyl
(7) Plate: Vertical
seam cap
(7) Plate:
Vertical
seam cap

(4) Screw:
10-16 x 0.750
self driller

Ribbed Butyl tape and seam
cap extend beyond the bottom
of wall panel onto base rail at
least one inch

(6) Tape:
Ribbed Butyl
(7) Plate:
Vertical
seam cap

36

(6) Tape:
Ribbed Butyl

First level ribbed
Butyl tape 1/2 inch
below second level
wall panel

First level seam cap
starts at bottom of
hem on roof panel

First level

Detail C

First level

CLCH-SVX07C-EN

Installation - Mechanical

Flashing Installation
For additional information, see “Flashing Installation
Notes” on page 40.
For hood installations, see “Install flashing and hood” on
page 41.
1. See Figure 37. Apply Butyl tape (Item 8) to
perpendicular-to-airflow flashing (Item 9) and secure
to base rail with screws (Item 4) on front and back of
unit (see Detail A in Figure 41).

(Item 12) with screws (Item 4). Apply caulk (Item 14) to
create water tight seal (see Detail B in Figure 39).
3. Apply Butyl tape (Item 8) to direction-of-airflow
flashing (Item 12) and secure to base rails with screws
(Item 4). Start at corners to ensure tight corner seams.
Apply caulk (Item 14) to create water-tight seal (see
Detail A and Detail C in Figure 40).
4. Install seam covers (Item 13) to all flashing seams (see
Detail D in Figure 41).

2. For energy wheel/CDQ wheel, preassemble end covers
(Item 10 and Item 11) to direction-of-airflow flashing
Figure 37.

Flashing installation

(9) Guard:
Perpendicular-toairflow flashing

(8) Tape:
0.12T x 1.00W
gray Butyl

(9) Guard:
Perpendicular-toairflow flashing

(12) Guard:
Direction-ofairflow flashing
(10) Guard:
Energy recovery
end cover
(11) Guard:
Energy recovery
end cover

CLCH-SVX07C-EN

(12) Guard:
Direction-ofairflow flashing

(8) Tape:
0.12T x 1.00W
gray Butyl

37

Installation - Mechanical

Figure 38. Flashing installation location

Detail A
Upper panel

.060 gap between
bottom of panel and
top of flashing

Base rail

(4) Screw:
10-16 x 0.750
self-driller
(9) Guard: Perpendicularto-airflow flashing
or
(12) Guard: Directionof-airflow flashing
(8) Tape:
0.12T x 1.00W
gray Butyl

Lower panel

Figure 39. Flashing end cover installation applied to energy wheels and CDQ sections

(8) Tape:
0.12T x 1.00W
gray Butyl
(10) Guard:
Energy recovery
end cover

Detail B

(11) Guard:
Energy recovery
end cover
(8) Tape:
0.12T x 1.00W
gray Butyl

(12) Guard:
Direction-ofairflow flashing
(4) Screw:
10-16 x 0.750
self-driller

38

(12) Guard:
Direction-ofairflow flashing

Apply caulk
(14) Adhesive/sealant:
Flex polyurethane
Assembled view

CLCH-SVX07C-EN

Installation - Mechanical

Figure 40. Flashing for corner seams

Detail C
Apply caulk
(14) Adhesive/sealant:
Flex polyurethane

(8) Tape:
0.12T x 1.00W
gray Butyl

(9) Guard:
Perpendicular-toairflow flashing
(12) Guard:
Direction-ofairflow flashing

Figure 41.

Assembled view

(4) Screw:
10-16 x 0.750
self-driller

Flashing seam cover installation

Detail D

Note: Install flashing seam
cover on all flashing seams

(4) Screw:
10-16 x 0.750
self-driller
(13) Guard:
Flashing seam cover
(4) Screw:
10-16 x 0.750
self-driller

CLCH-SVX07C-EN

(13) Guard:
Flashing seam cover

39

Installation - Mechanical
Flashing Installation Notes
•

•

Flashing runs full length on right/left sides of unit
except on access side when an energy recovery
section is present. For energy recovery section without
full height doors, flashing will extend to removable
plug panel. For energy recovery section with full height
doors, flashing will be flush with edge of vertical seam
caps (see Detail A in Figure 42).

•

Flashing runs full length on front/back of unit. Front/
back flashing will not have any locating features and
will always have mitre (one piece will have two mitres,
two pieces will have one mitre).

Side flashing will have locating features:
– Right side front and back pieces will have two
diamonds and a tab. Intermediate right side pieces
(if present) will have two diamonds and length of
part will match the ship group length and mounting
holes will match hole pattern on the unit.
– Left side front and back pieces will have one
diamond and a tab. Intermediate left side pieces (if
present) will have one diamond and length of part
will match the ship group length and mounting
holes will match hole pattern on the unit.

Figure 42. Side flashing installation
Detail A
without full height doors
.406 from plug
panel flange

Flashing

Plug panel

Detail A
with full height doors
Vertical
seam cap
Flashing flush
with vertical
seam cap
Flashing
See Detail A

Assembled view

40

Door

CLCH-SVX07C-EN

Installation - Mechanical
Install flashing and hood
1. See Figure 43. Secure two hood support brackets (Item
15) to base rail with screws (Item 17).
2. Apply Butyl tape (Item 8) to flashing (Item 9) and place
over hood support brackets (Item 15) using cut in
flashing and secure to base rails with screws (Item 4).

4. Secure hood support angles (Item 16) to hood support
brackets (Item 15) and to the hood side panels with
screws (Item 17).
5. Apply caulk (Item 14) around hood support bracket
(Item 15), hood support angle (Item 16), and cutout in
perpendicular-to-airflow flashing (Item 9) to ensure
water-tight seal.

3. See “Outdoor Unit Weather Hoods” on page 34 for
hood installation instructions.
Figure 43. Stacked unit assembly
Detail A
Assembled View

Hood

Detail A

Apply caulk
(14) Adhesive/sealant:
flex polyurethane

(15) Bracket:
hood support

See Detail A

(17) Screw:
0.250-14 x 0.750
self driller

(16) Angle:
hood support
(17) Screw:
0.250-14 x 0.750
self driller

CLCH-SVX07C-EN

(4) Screw:
10-16 x 0.750
self driller

(9) Guard:
perpendicular
to airflow flashing

(8) Tape:
0.12T x 1.00W
gray Butyl

41

Installation - Mechanical

Indoor Dual-Path SDU/Winterizer
Assembly

Figure 44. Apply gasket in direction of airflow

WARNING
Heavy Objects!
Do not stack air handlers unless factory-designed and
factory-approved. When stacking units, factorydesigned unit support brackets must be used. Stacking
units without factory-approval and without factoryprovided support brackets could result in the base unit
collapsing under the weight of the top unit which could
result in death or serious injury and property damage.

Unit support
brackets

Gasket
X23010544010
1.0 inches T x
4.0 inches W

Airflow

A dual-path, Split Dehumidification Unit (SDU)/winterizer
air handler consists of two units that are stacked together
in a draw-thru arrangement that share one supply fan. The
unit on the first level (primary unit) is designed to handle
the return air and is larger than the unit on the second level
(secondary unit), which is designed to handle outside air.
Factory-designed unit support brackets are provided with
all factory-approved, dual-path SDUs or winterizer air
handlers.

3. If there is an opening in the roof of the primary unit,
apply gasket perpendicular to airflow on the roof next
to the opening (air entering side only).

•

A horizontal SDU/winterizer dual-path air handler
incorporates a horizontal supply fan on the first level
with a top opening in the primary unit that aligns with
a bottom opening in the secondary unit.

•

A vertical SDU/winterizer dual-path air handler
incorporates a vertical supply fan on the second level
with a back opening that aligns with a front opening in
the secondary unit.

4. Lift the secondary unit, following instructions in
“General Lifting Considerations” on page 22 (see
Figure 11), and place on the black unit support brackets
(see Figure 45). The secondary unit must be centered
on the primary unit between the black unit support
brackets.

To assemble air handlers utilizing factory-approved and
factory-provided dissimilar unit sizes for horizontal SDU or
winterizer applications, join all similar size shipping
sections per “Section-to-Section Assembly” on page 27.

Horizontal SDU/Winterizer Air Handler
Assembly
To assemble dissimilar unit sizes for an indoor horizontal
SDU/winterizer configuration:
1. Locate the mounting hardware and gasket material.

Figure 45. Place secondary unit on black unit support
brackets.
Center of units

Secondary
unit
Gasket

Primary
unit

Note: Black unit support brackets ship pre-installed on
the primary (larger) unit section.
2. Apply gasket in direction of airflow between the black
unit support brackets to the roof of the primary unit.
See Figure 44. The gasket needs to be placed such that
it will be directly under the integral base frame of the
secondary (smaller) unit to be stacked on top. The
secondary unit will be centered along the width on the
primary unit.

42

CLCH-SVX07C-EN

Installation - Mechanical
5. Install screws as shown in Figure 46 inserting the
appropriate screws using a powered impact gun and
taking care not to strip the screws.

Figure 48. Apply gasketing to the mating surface of the
primary unit.

6. Remove the secondary unit lifting lugs one at a time
and reinstall screws after sections are set in final
position.
Figure 46. Install screws using powered impact gun.

X25240049010
Screw: 0.313-18 x 0.875 in.
Sheet metal hex head

Gasket
1-inch T x
2 1/2 inch W

Airflow

Airflow

3. Lift the secondary unit, follow instructions in “General
Lifting Considerations” on page 22 (see Figure 11), and
place on the black unit support brackets (see Figure 45,
p. 42. The secondary unit must be centered on the
primary unit between the black unit support brackets.

Vertical SDU/Winterizer Air Handler
Assembly
To assemble dissimilar unit sizes for an indoor vertical
SDU/winterizer configuration:
1. Apply gasketing to the mating surface of the secondary
unit (see Figure 47).

4. Install trim angles as shown in Figure 49 inserting the
10-16 x 3/4-inch self-drilling screws using a powered
impact gun and taking care not to strip the screws.
Figure 49. Install trim angles

Figure 47.

Apply gasketing to mating surface of
secondary unit
Vertical and horizontal
trim angles

Gasket
1.0 inches T x 1.0 inches W

Airflow

Airflow

2. Apply gasketing to the mating surface of the primary
unit at the bottom of the opening (see Figure 48.

CLCH-SVX07C-EN

43

Installation - Mechanical

External Raceway Assembly

4. Attach covers.
5. Secure conduit.

For air handling units with factory-installed power wiring
extending from the first level to the second level, wiring
must be connected and assembled in a raceway.

Part numbers:
•

1. Remove protective foam cover from connectors.
2. Attach stacked raceway harness connectors, matching
connector colors on the high voltage side and
connector numbers on the low voltage side.

Indoor
– External Raceway Kit: KIT09713

•

Outdoor
– External Raceway Kit - Top: KIT16191
– External Raceway Kit - Bottom: KIT16192

3. Verify conduit size.
Figure 50. External raceway
Step 1

Step 2

Match connector
numbers (LV side)
Cut zip-ties
Match connector
colors (HV side)

Low-voltage (LV)
stacked harness

High-voltage (HV)
stacked harness

Step 3
Verify if conduit is
1-inch or 2-inch for
stacked harness

Step 4
Use for 1-inch stacked
raceway conduit

Use for 2-inch stacked
raceway conduit (requires
removal of knockout)

Wrap around
conduit when
attaching cover

Screw; 10-16 x 0.75
self-driller

Enclosure;
stacked raceway

Conduit

44

Step 5
Space tie downs
no greater than
10 inches. Also
locate cut-screw
behind conduit
Tie; 0.25 wire screw type
Screw;
.250-14 x 0.75
self-driller

Cover

CLCH-SVX07C-EN

Component Installation Requirements

Component Installation Requirements
The components in the air handler may have installation
requirements that could affect the unit’s performance.

Diffuser Section
Diffuser sections are usually placed between a fan and a
downstream coil or filter. Because placement is critical to
unit performance, verify the correct placement of the
diffuser section before assembling the unit (see Figure 51).
Figure 51.

Diffuser placement sizes 3 to 120

Trane recommends the use of disposable pre-filters with
high-efficiency filters. Disposable pre-filters slide into the
mounting tracks just ahead of the bag/cartridge filters.

Filter Installation
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
To install filters:
1. Disconnect the power to the unit.
2. Open the filter section access door.
3. Slide the filters into the tracks.

Airflow

Note: Bag filters must be installed with the pleats in the
vertical plane.

Filter Section

4. The block-off is permanently installed and will create a
seal when the access door is closed.

Bag and cartridge filter sections can be used as a pre-filter
section, a final filter section, or both. This use is
determined by the filter’s placement in relation to the fan.

5. Close the access door slowly to allow any gasketing to
compress.

•

A final filter is placed after the fan.

Figure 52. Filter block-off placement

•

A pre-filter is placed before the fan.

Note: Cartridge and bag filters provided by Trane are
fitted with a 7/8-inch header that fits in the filter
track. If using filters supplied by another
manufacturer, filters should be purchased with a 7/
8-inch header. In some cases it may be necessary to
gasket other manufacturers’ filters to ensure a
good air seal.
Filters should be installed when the unit is set. This will
protect internal components, such as the heating and
cooling coils.

Final Filter Section
A final filter section should not be bolted directly to the
face of a fan section. One or more intermediate sections
must be placed between the fan discharge and the filter
section.

Pre-Filter Section
A pre-filter section has no special installation
requirements unless placed directly upstream of a plenum
fan. In these configurations, ensure a blank section is
placed between the fan inlet and the filter section.

CLCH-SVX07C-EN

45

Component Installation Requirements

Filter Placement
Figure 53. 2-inch and 4-inch flat filter placement for unit sizes 3-50 - side loading
Size 3

Size 4

20

Size 6

20

25

2.5

25

Size 8

20

3.47 ft ²

Size 10

24

Size 12
16

25

16

20

20
20
6.94 ft ²

5.56 ft ²

24
20 2.5
7.33 ft ²

20

20

16 1.25
20

9.72 ft ²

20 2.5

20
13.33 ft ²

Size 14

Size 17

16
16
20

20

25

25

Size 21
25

Size 22
25
25

1

25

20

16

16

20

25

20

7.5

3
24

24

14.44 ft ²

20

20

18.89 ft ²

20

16

20

20

21.53 ft ²

20

20

16 1.5

21.11 ft ²
Size 25
24

24

24

Size 26

4

Size 30

12

17.5
25

12

20

20

25

20
20

20

20

20

16
25

27.11 ft ²

24
20

24

16 1.5

20

24

16 1.5

30.44 ft ²

29.17 ft ²
Size 36

Size 31

25

25

25

1

Size 35
25

25

25

25

16

20 1

16
25

20

20
20
20

25

20
20

16

16

24

16

24

24

24

20

20

37.22 ft ²

35.42 ft ²

Size 41
24

20

16

40.00 ft ²

Size 50

24

24

4

25

25

25

25

20

12

Size 40

16
20

16

25
20

20

20

20

25

20

20

20

20

25

3.5

20
20

20

20

20

20

20 1.5

55.00 ft ²

40.83 ft ²
20

20

20

16

48.22 ft ²

46

CLCH-SVX07C-EN

Component Installation Requirements

Figure 54. 2-inch and 4-inch flat filter placement for unit sizes 51-120 - side loading

Size 51

Size 58

17.5

Size 57

12

20
16

20

20
20

20

20
20

20

20
20

20
24

24

24

25

16 1.5

25

25
63.33 ft

54.89 ft²

25

20

20 1.5

²

24

24

24

16 1.5

61.11 ft²

Size 80

Size 66

16.5

12

20

20
20
20

20

20
20
24

24

24

24

24

20

16 .5

75.56 ft²

24

24

24

24

24

16 .5

85.56 ft²

Size 100

Size 120

20

25

20
25
20
25
20
25

20
25

25

25

25

104.17 ft²

CLCH-SVX07C-EN

25

25 .5

20

20

20

20

20

20

20

20

16 2

122.22 ft²

47

Component Installation Requirements

Figure 55. 2-inch/4-inch combination flat filter placement for unit sizes 3-50 - side loading

Size 3

Size 4

20

Size 6

20

25

2.5

25

Size 8

20

3.47 ft ²

Size 10

24

Size 12
16

25

16

20

20
20
6.94 ft ²

5.56 ft ²

24
20 2.5
7.33 ft ²

20

20

16 1.25
20

9.72 ft ²

20 2.5

20
13.33 ft ²

Size 14

Size 17

16
16
20

20

25

25

Size 21
25

Size 22
25
25

1

25

20

16

16

20

25

20

7.5

3
24

24

14.44 ft ²

20

20

18.89 ft ²

20

16

20

20

21.53 ft ²

20

20

16 1.5

21.11 ft ²
Size 25
24

24

24

Size 26

4

Size 30

12

17.5
25

12

20

20

25

20
20

20

20

20

16
25

27.11 ft ²

24
20

24

16 1.5

20

24

16 1.5

30.44 ft ²

29.17 ft ²
Size 36

Size 31

25

25

25

1

Size 35
25

25

25

25

16

20 1

16
25

20

20
20
20

25

20
20

16

16

24

16

24

24

24

20

20

37.22 ft ²

35.42 ft ²

Size 41
24

20

16

40.00 ft ²

Size 50

24

24

4

25

25

25

25

20

12

Size 40

16
20

16

25
20

20

20

20

25

20

20

20

20

25

3.5

20
20

20

20

20

20

20 1.5

55.00 ft ²

40.83 ft ²
20

20

20

16

48.22 ft ²

48

CLCH-SVX07C-EN

Component Installation Requirements

Figure 56. 2-inch/4-inch combination flat filter placement for unit sizes 51-120 - side loading

Size 51

Size 58

17.5

Size 57

12

20
16

20

20
20

20

20
20

20

20
20

20
24

24

24

25

16 1.5

25

25
63.33 ft

54.89 ft²

25

20

20 1.5

²

24

24

24

16 1.5

61.11 ft²

Size 80

Size 66

16.5

12

20

20
20
20

20

20
20
24

24

24

24

24

20

16 .5

75.56 ft²

24

24

24

24

24

16 .5

85.56 ft²

Size 100

Size 120

20

25

20
25
20
25
20
25

20
25

25

25

25

104.17 ft²

CLCH-SVX07C-EN

25

25 .5

20

20

20

20

20

20

20

20

16 2

122.22 ft²

49

Component Installation Requirements

Figure 57. 2-inch and 4-inch angled filter placement for unit sizes 3-50 - side loading
Size 12

Size 3

Size 4

16
16
25

Size 6

16

16

16

16

20
20
8.89 ft ²

20
20
8.89 ft ²

2.5

5.56 ft ²

Size 10

Size 8
20

20

20

20
20
20 6.5
11.11 ft ²

Size 17

20
20

3

20
25
18.06 ft ²

20
25
25
13.89 ft ²

16

16

16

16

16

16

Size 22
16
16
16
16

16

16
20

20
25
28.89 ft ²

Size 25

25

3

25
25
33.33 ft ²

16

1

16
25

Size 26
16
16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

25
25
50.00 ft ²

1

20
20
56.67 ft ²

20

16
25

Size 31

25
33.33 ft ²

7.5

Size 30

16
16

25

20 2.5
20
16.67 ft ²

20

7.25

Size 21

Size 14
20

20

7.5

25

44.44 ft ²

25

4.5

Size 36

16
20

Size 35

16
16

16

16

16

16

16

16

16

16

16

20
20
20
20

16

16
20

20

25

20
25

3

57.78 ft ²

25
25
63.33 ft ²

20 1
25

Size 41
Size 40

25
62.50 ft ²

25

1

Size 50

16
20
16

16
16
16

20

16

20

16

16

20
16

16

20

16

16
20

20

20
70.00 ft ²

50

16

20

25

3.5

16

20
25

25
66.67 ft ²

25

1

20

20

20
20
100.00 ft ²

20

20 1.5

CLCH-SVX07C-EN

Component Installation Requirements

Figure 58. 2-inch and 4-inch angled filter placement for unit sizes 51-120 - side loading
Size 58

Size 51
20

Size 57

20
20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20
20

20

20

20

20

20

20 1.5

20

100.00 ft ²
20

20

20

25

16

4.5

16

16

16

25

1

98.89 ft ²

94.44 ft ²

Size 80
Size 66

20

20

20

20

20

20

20

20

20

20

20

20

20
20

20

20

20

20

20

16 .5
20

113.33 ft ²

20

20

20

20

20

20

16 .5

25

25

151.11 ft ²

Size 100

Size 120

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20
25

25

25

25

166.67 ft ²

CLCH-SVX07C-EN

25

25

.5

25

25

25

25

25

3

194.44 ft ²

51

Component Installation Requirements

Figure 59. Long bag filter placement for unit sizes 3-50 - side loading

Size 3

Size 4

20

20
24 3.9
3.33 ft ²

Size 10

Size 8

Size 6
24

24
20
20 .8
5.56 ft ²

20

8.00 ft ²

6.67 ft ²

Size 12
24

15.3

20

20 3.7

12

24
12 12 12 12 .1

20 .8

20

24

20

20 12 6.45
8.67 ft ²

20

12.33 ft ²
Size 14
24

24

Size 17

20.8

12

Size 21

Size 22

20

20

24

20
20

24

20 1.2

24

24

13.44 ft ²

24

24

24

20 1.2

24

18.89 ft ²

24

24

5.2

20

22.00 ft ²

Size 25

Size 26
24
24

18.7

24

20

24
24
24
26.00 ft ²

24

12

20

24

12 6.7

Size 30

12

20

20

17.33 ft ²

20

5.2
24

20
20

20

20

12 6.7

20

20

11.1

28.22 ft ²

26.00 ft ²

Size 36

Size 31
Size 35

24

24

12
24

20

24

20

24

24
24
24

24
34.00 ft ²

24

20 1.2

24

24

1.6

24

34.67 ft ²

24
24
36.00 ft ²

5.2

Size 41
Size 50

24
12
Size 40
24

24

24

24

24

24
24
24

24

24
36.00 ft ²

52

24

12 2.5

24

24

24

24

24

3.5

50.00 ft ²
24

24
48.00 ft ²

24

5.2

CLCH-SVX07C-EN

Component Installation Requirements

Figure 60. Long bag filter placement for unit sizes 57-120 - side loading

Size 58

Size 51
Size 57

18.7

12

24
24

24

24

24

24

24
24
24

24
24

24

24

24

24

24

24

24

3.5

60.00 ft ²

12 7.1

24

56.00 ft ²

24

24

24

12 7.1

62.00 ft ²

Size 80

Size 66
24

20

20

24

20
24
20
24

24

24

24

24

24

18.5

66.67 ft ²

24

24

Size 100
24

24

24

24

24
24
88.00 ft ²

24

12 6.9

Size 120
24

24

12.8

8.9
12

12

24

24

24

24

24

24

24

24
20

20

20

20

20

111.33 ft ²

CLCH-SVX07C-EN

20

20

12 1.7

24

24

24

24

24

24

24

12 1.2

134.00 ft ²

53

Component Installation Requirements

Figure 61. Short bag filter placement for unit sizes 3-50 - side loading

Size 3

Size 4

20

20
24 3.9
3.33 ft ²

Size 10

Size 8

Size 6
24

24
20
20 .8
5.56 ft ²

20

8.00 ft ²

6.67 ft ²

Size 12
24

15.3

20

20 3.7

12

24
12 12 12 12 .1

20 .8

20

24

20

20 12 6.45
8.67 ft ²

20

12.33 ft ²
Size 14
24

24

Size 17

20.8

12

Size 21

Size 22

20

20

24

20
20

24

20 1.2

24

24

13.44 ft ²

24

24

24

20 1.2

24

18.89 ft ²

24

24

5.2

20

22.00 ft ²

Size 25

Size 26
24
24

18.7

24

20

24
24
24
26.00 ft ²

24

12

20

24

12 6.7

Size 30

12

20

20

17.33 ft ²

20

5.2
24

20
20

20

20

12 6.7

20

20

11.1

28.22 ft ²

26.00 ft ²

Size 36

Size 31
Size 35

24

24

12
24

20

24

20

24

24
24
24

24
34.00 ft ²

24

20 1.2

24

24

1.6

24

34.67 ft ²

24
24
36.00 ft ²

5.2

Size 41
Size 50

24
12
Size 40
24

24

24

24

24

24
24
24

24

24
36.00 ft ²

54

24

12 2.5

24

24

24

24

24

3.5

50.00 ft ²
24

24
48.00 ft ²

24

5.2

CLCH-SVX07C-EN

Component Installation Requirements

Figure 62. Short bag filter placement for unit sizes 57-120 - side loading

Size 58

Size 51
Size 57

18.7

12

24
24

24

24

24

24

24
24
24

24
24

24

24

24

24

24

24

24

3.5

60.00 ft ²

12 7.1

24

56.00 ft ²

24

24

24

12 7.1

62.00 ft ²

Size 80

Size 66
24

20

20

24

20
24
20
24

24

24

24

24

24

18.5

66.67 ft ²

24

24

Size 100
24

24

24

24

24
24
88.00 ft ²

24

12 6.9

Size 120
24

24

12.8

8.9
12

12

24

24

24

24

24

24

24

24
20

20

20

20

20

111.33 ft ²

CLCH-SVX07C-EN

20

20

12 1.7

24

24

24

24

24

24

24

12 1.2

134.00 ft ²

55

Component Installation Requirements

Figure 63. Cartridge filter placement for unit sizes 3-50 - side loading

Size 3

Size 4

20

20
24 3.9
3.33 ft ²

Size 10

Size 8

Size 6
24

24
20
20 .8
5.56 ft ²

20

8.00 ft ²

6.67 ft ²

Size 12
24

15.3

20

20 3.7

12

24
12 12 12 12 .1

20 .8

20

24

20

20 12 6.45
8.67 ft ²

20

12.33 ft ²
Size 14
24

24

Size 17

20.8

12

Size 21

Size 22

20

20

24

20
20

24

20 1.2

24

24

13.44 ft ²

24

24

24

20 1.2

24

18.89 ft ²

24

24

5.2

20

22.00 ft ²

Size 25

Size 26
24
24

18.7

24

20

24
24
24
26.00 ft ²

24

12

20

24

12 6.7

Size 30

12

20

20

17.33 ft ²

20

5.2
24

20
20

20

20

12 6.7

20

20

11.1

28.22 ft ²

26.00 ft ²

Size 36

Size 31
Size 35

24

24

12
24

20

24

20

24

24
24
24

24
34.00 ft ²

24

20 1.2

24

24

1.6

24

34.67 ft ²

24
24
36.00 ft ²

5.2

Size 41
Size 50

24
12
Size 40
24

24

24

24

24

24
24
24

24

24
36.00 ft ²

56

24

12 2.5

24

24

24

24

24

3.5

50.00 ft ²
24

24
48.00 ft ²

24

5.2

CLCH-SVX07C-EN

Component Installation Requirements

Figure 64. Cartridge filter placement for unit sizes 57-120 - side loading

Size 58

Size 51
Size 57

18.7

12

24
24

24

24

24

24

24
24
24

24
24

24

24

24

24

24

24

24

3.5

60.00 ft ²

12 7.1

24

56.00 ft ²

24

24

24

12 7.1

62.00 ft ²

Size 80

Size 66
24

20

20

24

20
24
20
24

24

24

24

24

24

18.5

66.67 ft ²

24

24

Size 100
24

24

24

24

24
24
88.00 ft ²

24

12 6.9

Size 120
24

24

12.8

8.9
12

12

24

24

24

24

24

24

24

24
20

20

20

20

20

111.33 ft ²

CLCH-SVX07C-EN

20

20

12 1.7

24

24

24

24

24

24

24

12 1.2

134.00 ft ²

57

Component Installation Requirements

Figure 65. Front-load bag and cartridge filter placement for unit size 3-50

Size 4

Size 3
10.38

10.38

12

12

Size 6

Size 8

4.63

Size 10

7.13

7.13

24

24

Size 12
10.88

24

24 3.38
2.00 ft ²

24

15.88

24

12 3.75

24

2.00 ft ²

24

6.00 ft ²

12 10.25

24

24

6.00 ft ²

9.25
24

8.00 ft ²

Size 17

Size 14
6.25

10

12

12

24

24
24
24

24

12 7.63

24

Size 22

.38
12

Size 21

10.88

12 2.13
24
10.00 ft ²

24

10.00 ft ²

12 7.63

24

24

24

14.00 ft ²

24
24
18.00 ft ²

3.625
24

24

9.25

18.00 ft ²
Size 26

Size 25

6.63

6.75

Size 30
6.75

24
24

24
24

24
24

24
24
24.00 ft ²

24

3.63
24

24
24
28.00 ft ²

24
24

24

9.25

12 5

24.00 ft ²
Size 36

Size 31
6.63

Size 35

.38
12

24

6.63
24

24

24

24
24
24

24
12
12

24

24

24

7.63

24

24

11.5

24

24

34.00 ft ²

Size 41

3.63

Size 50

1
8.88

24

12

Size 40

.38
12

24

36.00 ft ²

30.00 ft ²

24

24

24

24

24

24

24
24
24

58

24
24
38.00 ft ²

24

24

24

24

24

.88

50.00 ft ²

12
24

24
46.00 ft ²

24

3.63

CLCH-SVX07C-EN

Component Installation Requirements

Figure 66. Front-loading bag and cartridge filter placement for unit size 57-120

Size 58

Size 51

1

1.13
12

Size 57
6.63

24

24

24

24

24

24

24

24

24

24

24
24

24

24

12

24

5

24
24
60.00 ft ²

24

.88
24

54.00 ft ²

12

24

24

24

5

62.00 ft ²

Size 80
1

Size 66
10.13

24

24
24
24
24
24
24
24

24

24

24

24

12 3.75
24

66.00 ft ²

24

24
24
86.00 ft ²

24

12 3.75

Size 120

Size 100

1.13

1.13
12

12
24

24

24

24

24

24

24

24
24

24

24

24

106.00 ft ²

CLCH-SVX07C-EN

24

24

5.75

24

24

24

24

24

24

24

9.13

124.00 ft ²

59

Component Installation Requirements

Figure 67. HEPA filter placement for unit size 3-50 - front loading
Size 3

Size 4

Size 6

Size 8

Size 10

Size 12

12

12
24 2.88
2.00 ft ²

24

24

15.38

24

30
30

2.00 ft ²

30

24
12 2.75
6.00 ft ²

12 3.25
24

24

7.00 ft ²

8.25

24

10.00 ft ²

Size 22
24
24

Size 17

Size 14

6

24

24

Size 21

6

30

24

30

18.75

24
10.00 ft ²

6

12

12
30
24

13.25

24
10.00 ft ²

30

6.75

30

24

14.00 ft ²

24

2.13

24
24
21.00 ft ²

30

24

2.25

19.00 ft ²
Size 26

Size 25
24

24

24

24

Size 30

24

30

30

24

12 2.13
24

24.00 ft ²

30
30

24

2.25

30

24

3.63

28.00 ft ²

27.00 ft ²

Size 36

Size 31
9

24

24

Size 35
24

9

24

24

30
24

24

24

24

24
30
30

30

30

6.75

30

4.13
24

30.00 ft ²

30.00 ft ²

Size 41
9

24

24

24

Size 50
24
24

2.13

24

9

12

30

Size 40
24
24

24

24
36.00 ft ²

6
24

30

30
24

24

30

30
30

30
37.00 ft ²

60

30

30

30

24

5.0

46.00 ft ²

12 4.0
24

24
45.00 ft ²

24

2.13

CLCH-SVX07C-EN

Component Installation Requirements

Figure 68. HEPA filter placement for unit size 57-120 - front loading

24

6

Size 51
24

24

6
Size 57

12

Size 58

24

24

24

24

24

24

24

24
30

30

24

24
30

3.625

30

30

24

5.0

57.00 ft ²

48.00 ft ²

24
30
56.00 ft ²

30

24

3.625

Size 80

Size 66
24

6

24

24

24

24

6

12

24

24
24
24
24
24
30

30

30

30

12 1.375
30

66.00 ft ²

30

30

30

12 1.375

76.00 ft ²

Size 120

Size 100
12

12

30

30

30

30

30

30
24

24

24

24

102.00 ft ²

CLCH-SVX07C-EN

24

24

2.75

24

24

24

24

24

24

24

5.625

119.00 ft ²

61

Component Installation Requirements

Fan Section

isolators. The isolators are secured to the fan section
support base.

The fan section can be configured as either draw-thru or
blow-thru. Review the submittals and unit tagging
information prior to assembly to determine placement.

Shipping tie-down bolts are bolted adjacent to the
isolators between the fan isolation base and the isolator
support frame. The shipping tie-downs secure the
isolation base to the support assembly to prevent any
damage to the fan section during shipment.

WARNING
Hazardous Service Procedures!

Note: Remove the tie-downs only if the factory-provided
isolation is to be used.

The maintenance and troubleshooting procedures
recommended in this manual could result in exposure
to electrical, mechanical or other potential safety
hazards. Always refer to the safety warnings provided
throughout this manual concerning these procedures.
Unless specified otherwise, disconnect all electrical
power including remote disconnect and discharge all
energy storing devices such as capacitors before
servicing. Follow proper lockout/tagout procedures to
ensure the power can not be inadvertently energized.
When necessary to work with live electrical
components, have a qualified licensed electrician or
other individual who has been trained in handling live
electrical components perform these tasks. Failure to
follow all of the recommended safety warnings
provided, could result in death or serious injury.

Fan Isolation
The fan-and-motor assembly is internally isolated. The fan
and motor bases are bolted to a minimum of four spring

Figure 69. Isolator adjustment for unit sizes 10-30

Tiedown

Figure 71.

Required
clearance

Isolator adjustment for unit sizes 66-120

Required
clearance

Adjusting the Isolators
Once the shipping tie-downs are removed and the internal
isolation is released, it may be necessary to adjust the
isolators to achieve the proper operation height of the fan
and motor isolation base.
Minimum required clearances are listed in Table 10. To
determine the isolator clearances on all unit sizes,
measure between the top of the cabinet channel and the
bottom of the isolation base channel. See Figure 69,
Figure 70, Figure 71, and Figure 72.
Table 10. Minimum isolator clearances (inches)
Unit Size

Fan Type

Required
Clearance

3–8
10–31
35-58
66-120

FC, BC, Plenum
FC, AF, Plenum
FC, AF, Plenum
FC, AF, Plenum

1.0
0.5
0.5
1.0

Figure 70. Isolator adjustment for unit sizes 10-30

Required
clearance

Tiedown

Figure 72. Belt-drive plenum fan isolator adjustment size
3-8

Tiedown
Required
clearance

62

CLCH-SVX07C-EN

Component Installation Requirements

Seismic Application
Requirements
Air handling equipment manufactured by Trane is capable
of structurally and operationally withstanding the seismic
response criteria as required by the International Building
Codes (IBC) 2000,2003, 2006, 2009. Trane has third-party
certification for IBC compliance for seismic applications
for unit sizes 3-30. Certification for larger sizes is in
process.
Note: If seismic isolation has been specified, the
following requirements must be adhered to for
installation. Failure to follow these instruction
would void the warranty.

Anchor Requirements
Single Level Design Break - Size 3-120
Grade to Roof Mounted (0<=Sds<=1.85) NonIsolated

Steel dunnage/steel curb
1/2-inch diameter ASTM A325 or SAE Grade 5 bolts
attached to unit base located as noted above or 1-inch long
3/16-inch welds at unit bases located as noted above.

Anchor Pattern
Lifting lugs should be used to anchor the unit at the ends
of each shipping split. Per the anchor requirements,
additional anchoring may be needed. If so, anchors will be
provided and installed on the unit. An example of a seismic
anchor is shown in Figure 73.
Anchor selection meets or exceeds IBC 2000, 2003, 2006
and 2009 compliance requirements.
Special Inspection per IBC Section 1704 is required on all
installations. All anchors listed above must be installed to
meet compliance.
Figure 73. Seismic anchor

4000 psi concrete
•

3/8-inch diameter Hilti Kwik Bolt TZ carbon steel
concrete anchors attached to unit base rails.

•

Install clips at shipping split corners

•

Install clips at shipping splits containing fans or coils at
48 inches maximum on-center spacing.

•

2-inch minimum anchor embedment

•

4-3/8-inch minimum distance to the nearest edge

•

4-inch minimum concrete slab thickness

Steel dunnage/steel curb
3/8-inch diameter ASTM A325 or SAE grade 5 bolts
attached to unit base located as noted above or 1-inch long
3/16-inch welds at unit base located as noted above.

Stacked Design Break - Size 3-50
Grade to Roof Mounted (0<=Sds<=1.85) NonIsolated

Figure 74.

Seismic anchor pattern
Staggered anchor bolt patterns

Shipping split 2

Shipping split 1

4000 psi concrete
•

1/2-inch diameter Hilti Kwik Bolt TZ carbon steel
concrete anchors attached to unit base rails

•

Install clips at all ship split corners.

•

Install clips at ship splits with a stacked section at 36
inches maximum on-center spacing.

•

Install clips at single level ship splits containing fans or
coils at 48 inches maximum on-center spacing.

•

3 1/4-inch minimum anchor embedment

•

7 1/2-inch minimum distance to the nearest edge

•

6-inch minimum concrete slab thickness

AHU Plan View

Shipping split joint

Shipping split 1

Lifting
lugs

Section

Base rail
Lifting lugs

CLCH-SVX07C-EN

Shipping split 2

AHU Elevation View

Anchor bolt
to floor curb

63

Component Installation Requirements

Hurricane Application
Requirements
Miami/Dade County Hurricane-Certified
Air Handlers
Performance Climate Changer air handlers size 3-30 are
approved and have has been designed to comply with the
High Velocity Hurricane Zone of the Florida Building Code.
Notice of compliance and additional product construction
details can be found at the Miami-Dade County, Building
Code Compliance Office Web site.

The Florida licensed engineer or architect-of-record for the
project shall be responsible for the design, sizing, and
structural adequacy of the product framework as well as
curbing and attachment to the roof, or as accepted by the
corresponding building departments.

Approved Method for Anchoring Unit
The method shown in Figure 75 through Figure 85 is what
is approved and recommended for anchoring the unit to
substrate and roof curb. Any deviation to this may require
the approval of the local building code enforcement
agency.

Figure 75. Method for anchoring unit to substrate and roof curb

See Detail C
for hood support
installation

See Detail B

Install fastener to
substrate through only one
lug at this location
See Detail A

64

CLCH-SVX07C-EN

Component Installation Requirements

Hurricane Unit Anchorage
Table 11.
Figure 76. Typical direct anchorage to substrate at
lifting lugs (also see Table 11)

Detail A
First level base rail
First level lifting lug
Install fastener
one per lug, either hole

Installation anchor information

Anchor/substrate
1/2-inch powers chem-standard
threaded rod installed with chemstandard adhesive capsule in 3.2 ksi
minimum concrete substrate
1/4-inch Elco dril-flex hex head schre
installed in 36 ksi minimum steel 1/8inch think minimum Ufull thread
engagement)

Typical direct anchorage to substrate using
L-clip in addition to lifting lugs (also see
Table 11)

1 1/2 inches

6 inches

1/8 inch

1/2 inch

Unit base panel
1/4-in. sheet
metal fasteners

Min embedment

Figure 77.

Minimum
edge
distance

Figure 78. Typical installation of unit baserail to curb

Substrate

Min edge
distance

Minimum
embedment

Roof curb
by others

Factory-supplied
drip lip
6-in. max O.C. for 0.119-in.
min roof curb thickness.
2-in. max O.C. for 0.047-in.
min roof curb thickness

Detail B
First level base rails
3-in.x3-in.x6-in. long
x 1/4-in. thick min. L-angle
clip, galv steel 36 ksi min.
Qty 5 screws per angle
Installation fastener
one per angle, centered
Substrate
Min embedment
Min edge
distance
Note: Anchor spacing to be 24 inches maximum typical long side of unit.

CLCH-SVX07C-EN

65

Component Installation Requirements

Figure 79. Installation of front and back hoods

Detail C
Front and Back Hoods Only

These brackets
are attached to
the unit baserail.
3
3
1
Fasten bracket to bottom of
hood L angle (for hoods that
are lower to ground, may need
to flip the bracket (1) so the
short flange is pointing down
to the ground.
2
Item
1
2
3

Description
Support bracket
L angle
1/4-14 x .75 sheet metal screw

Fasten ship-with angle
to support bracket

Gas Heat Installation
Figure 80. Attach the gas heat flue duct to the L angles on both sides

Gas heat flue

See note

L bracket

#10 x 3/4-in. self-drilling
sheet metal screws

Attach the gas heat flue duct
to the L angles on both sides

Right side view

Note: When installing flue, leave enough clearance to avoid roof’s edge and anything above the roof.

66

CLCH-SVX07C-EN

Component Installation Requirements

Pipe Cabinet Installation
Nested U Channels and L angle have to be removed to
install the pipe cabinet to the unit and reinstall per
hurricane certification guidelines. See Figure 81.

1. Remove the fasteners from the top of the nested U
channel.
2. Remove the U channel from the unit base L angle and
the pipe cabinet base L angle.
3. Remove the corner fasteners from the pipe cabinet
base and the unit base L angle. These fasteners are not
required to be put back.

Figure 81.

Instructions for pipe cabinet with nested U channels

3

Step 1

Step 2

See Detail B

2
See Detail A

1

Detail A
Detail B
Item
1
2
3

CLCH-SVX07C-EN

Description
Nested U Channel
L angle
5/16-18 x .875 screw

Step 3

67

Component Installation Requirements
4. Attach the unit base L angle from the pipe cabinet to the
unit base rail. See Step 4 in Figure 82
5. Attach a U channel to the unit base L angle. Make sure
to clear any coil piping. Make sure to attach enough
nested U channels to comply to the unsupported span.
See Step 5 in Figure 82.

6. Locate the pipe cabinet in place, and reinstall the U
channel to the pipe base L angle and reinstall the top U
channel to the nest (see Step 1, Figure 81).
7.

When the L angle interferes with the unit base rail
lifting lugs or splice plate, mark and cut L angle section
to clear the component. If excess L angle is not needed
for nested U channel, leave it off. See Figure 82.

Figure 82. Attaching L angles in pipe cabinet

Air handler

Pipe cabinet wall
removed for clarity
Nested U channel
attached to L angle

Unsupported span
Size 3-50 - 52 in. max
Size 57-120 - 34 in. max

Step 6
L angle attached
to unit baserail

Step 5

3
Step 4
Step 7

68

CLCH-SVX07C-EN

Component Installation Requirements

Pipe Cabinet Hurricane Anchorage
Figure 85. Pipe-cabinet approved field penetrations
Figure 83. Typical installation of pipe cabinet baserail to
curb

6-in. max O.C. for 0.119-in.
min roof curb thickness.
2-in. max O.C. for 0.047-in.
min roof curb thickness

1/4-in. sheet
metal screws

3-in. min
panel top
or bottom
2-in. max
3-in. min
panel left
or right
Field-drilled hole detail

Damper Section

Roof curb
by others

Figure 84. Typical direct anchorage pipe cabinet
baserail to substrate with L clip
3-in.x3-in.x6-in. long
x 1/4-in. thick min.
L-angle clip, galv steel
36 ksi min.
Qty 5 screws per angle
Baserail

Installation fastener
one per angle, centered

Dampers are factory-installed and adjusted and can be
found in mixing box/economizer sections. There are two
damper blade configurations available: parallel-blade and
opposed-blade.
Traq™ dampers are another type of damper available in
mixing box sections. Traq dampers have only one blade
configuration - opposed. They have two control
applications available - standard Traq dampers and lowflow Traq dampers. Low-flow Traq dampers are always not
linked and consist of two damper sets - one set for
minimum outside air measurement and one set for
economizing. Each will have its own VCM.
The air handler is available with factory-mounted controls
or end devices. If the unit is not ordered with controls or
end devices, it is the installer’s responsibility to provide
and install the damper actuators. Size the actuators
according to Table 12.
Mixing section and economizer dampers are designed for
the damper actuators to be direct coupled and installed in
the air stream. If other provisions are required,
modifications to the section will be the responsibility of
the installing contractor.

Substrate
Min embedment
Min edge
distance

CLCH-SVX07C-EN

69

Component Installation Requirements

Damper Torque Requirements
Table 12. Mixing box damper torque requirements (inch pound) at 1-inch w.g. air pressure drop
Parallel
airfoil
damper
only

Opposed
airfoil
damper
only

3

9.00

6.40

18.00

n/a

n/a

10.30

7.70

19.30

36.00

4

13.10

9.30

36.00

18.00

18.00

14.90

11.20

37.90

72.00

6

17.10

12.20

36.00

18.00

18.00

19.60

14.70

38.40

72.00

8

23.30

16.60

54.00

18.00

36.00

26.60

19.90

57.30

108.00
108.00

Unit
Size

Standard
Low-flow
Low-flow Parallel airfoil Opposed airfoil Standard
Standard
Traq
minimum econ Traq damper linked damper linked Traq linked Traq linked
damper
OA Traq
damper
to parallel
to opposed
to airfoil
to standard
only
damper only
only
airfoil damper airfoil damper
damper
Traq damper

10

29.00

20.70

54.00

18.00

36.00

33.20

24.90

58.10

12

35.70

25.50

67.50

22.50

45.00

40.70

30.60

72.60

135.00

14

39.50

28.20

67.50

22.50

45.00

45.20

33.90

73.10

135.00

17

48.90

34.90

67.50

22.50

45.00

55.90

41.90

74.50

135.00

21

60.40

43.10

99.00

33.00

66.00

69.00

51.80

107.60

198.00

25

72.40

51.70

99.00

33.00

66.00

82.80

62.10

109.30

198.00

30

84.20

60.10

108.00

36.00

72.00

96.20

72.20

120.00

216.00

35

100.20

71.50

108.00

36.00

72.00

114.50

85.90

122.30

198.00

40

110.20

78.70

108.00

36.00

72.00

125.90

94.50

119.60

198.00

50

126.30

90.20

112.50

37.50

75.00

144.30

108.20

135.70

216.00

57

154.80

110.60

112.50

37.50

75.00

176.90

132.70

164.20

198.00

66

177.60

126.80

150.00

37.50

75.00

202.90

152.20

187.00

264.00

80

210.30

150.20

187.50

37.50

112.50

240.30

180.20

223.10

360.00

100

272.00

194.30

225.00

37.50

150.00

310.90

233.20

284.90

396.00

120

322.40

230.30

225.00

37.50

150.00

368.50

276.30

335.20

432.00

Table 13. Air-to-Air Plate Heat Exchanger Bypass Damper
Damper dia (in)

70

Damper
Actuator torque
torque (in-lb) (max) (in-lb)

Unit size

A

B

Damper qty

3

25.00

24.03

1

20.90

42.00

Actuator qty
1

Linkage
No

4

37.50

24.03

1

31.30

42.00

1

No

6

37.50

29.78

1

38.80

160.00

1

No

8

44.00

29.78

1

45.50

160.00

1

No

10

55.00

35.53

1

67.90

160.00

1

No

12

60.00

35.53

1

74.00

160.00

1

No

14

65.50

35.53

1

80.80

160.00

1

No

17

65.50

24.03

2

109.30

160.00

1

Yes

21

73.50

24.03

2

122.70

160.00

1

Yes

25

73.50

29.78

2

152.00

160.00

1

Yes

30

87.00

29.78

2

179.90

160.00

2

Yes

35

93.50

29.78

2

193.40

160.00

2

Yes

40

106.00

29.78

2

219.20

160.00

2

Yes

CLCH-SVX07C-EN

Component Installation Requirements

Table 14. Air-to-Air Plate Heat Exchanger Frost Damper
Damper
Actuator torque
torque (in-lb) (max) (in-lb)

Unit size

A

B

Damper qty

3

25.00

13.97

1

12.10

42.00

Actuator qty
1

Linkage
No

4

37.50

13.97

1

18.20

42.00

1

No

6

37.50

13.97

1

18.20

42.00

1

No

8

44.00

13.97

1

21.30

42.00

1

No

10

55.00

13.97

1

26.70

42.00

1

No

12

60.00

13.97

1

29.10

42.00

1

No

14

65.50

13.97

1

31.80

160.00

1

No

17

65.50

13.97

2

63.50

160.00

1

Yes

21

73.50

13.97

2

71.30

160.00

1

Yes

25

73.50

13.97

2

71.30

160.00

1

Yes

30

87.00

13.97

2

84.40

160.00

1

Yes

35

93.50

13.97

2

90.70

160.00

1

Yes

40

106.00

13.97

2

102.80

160.00

1

Yes

50

119.00

13.97

2

115.40

160.00

1

Yes

Table 15. Side Traq damper - standard flow mixing box
Damper dia Damper
(in)
qty

Unit size

Actuator
Damper torque Total torque torque (max)
(in-lb)
(in-lb)
(in-lb)

Actuator
qty

Face-to-face Linkage on
linkage
face

3, 4, 6, 8

13.00

1

18.00

18.00

42.00

1

No

No

10, 12

16.00

1

22.50

22.50

42.00

1

No

No

14, 17

13.00

2

18.00

36.00

42.00

1

No

Yes

21, 22, 25, 26

16.00

2

22.50

45.00

160.00

1

No

Yes

30, 31, 35, 40

20.00

2

33.00

66.00

160.00

1

No

Yes

36, 41, 50, 57, 66

24.00

2

36.00

72.00

160.00

1

No

Yes

51, 58, 80

28.00

2

37.50

75.00

160.00

1

No

Yes

100

28.00

3

37.50

112.50

160.00

1

No

Yes

120

24.00

4

36.00

144.00

160.00

1

No

Yes

Table 16. Side Traq damper - standard flow diagonal economizer
Unit
sizes

Damper
dia (in)

Damper
qty

Damper
Total torque
torque (in-lb.)
(in-lb.)

Actuator torque Actuator
(max) (in-lb.)
qty

Face-to-face
linkage

Linkage on
face

3

13.00

1

18.00

18.0

42.00

1

No

No

4

13.00

2

18.00

36.0

42.00

2

No

No

6, 8

13.00

2

18.00

36.0

42.00

1

No

Yes

10, 12, 14

16.00

2

22.50

45.0

160.00

1

No

Yes

17

13.00

4

18.00

72.0

160.00

1

No

Yes

21

20.00

2

33.00

66.0

160.00

1

No

Yes

25

16.00

4

22.50

90.0

160.00

1

No

Yes

30

20.00

3

33.00

99.0

160.00

1

No

Yes

35

28.00

2

37.50

75.0

160.00

2

No

No

40

28.00

2

37.50

75.0

160.00

1

No

Yes

50

24.00

3

36.00

108.0

160.00

1

No

Yes

57

24.00

4

36.00

144.0

160.00

1

No

Yes

66

28.00

3

37.50

112.5

160.00

1

No

Yes

80

28.00

4

37.50

150.0

160.00

1

No

Yes

100, 120

28.00

5

37.50

187.5

160.00

2

No

Yes

CLCH-SVX07C-EN

71

Component Installation Requirements

Table 17.

Single -Side Traq low flow mixing box
Low flow
Actuator qty
Traq
for
Damper
Remained Actuator
Face-toDamper Damper Torque Torque (in- Traq Torque qty for low remained Actuator
Linkage
face
Dia (in)
Qty
total Qty Linkage on Face
lb.)
damper
(in-lb.)
(in-lb.)
flow Traq

Unit size
14, 17

13.00

2

18.00

18.00

18.00

1

1

2

No

No

21, 22, 25, 26

16.00

2

22.50

22.50

22.50

1

1

2

No

No

30, 31, 35, 40

20.00

2

33.00

33.00

33.00

1

1

2

No

No

36, 41, 50, 57, 66

24.00

2

36.00

36.00

36.00

1

1

2

No

No

51, 58, 80

28.00

2

37.50

37.50

37.50

1

1

2

No

No

100

28.00

3

37.50

37.50

75.00

1

1

2

No

Yes

120

24.00

4

36.00

36.00

108.00

1

1

2

No

Yes

Table 18. Dual-side Traq low flow mixing box
Damper
Damper Damper torque
dia (in)
qty
(in-lb)

Unit size

Low-flow Remained Actuator Actuator qty Actuator
Traq
Traq
qty for for low-flow
qty for
Facetorque
torque
std Traq
Traq
single low- Actuator to-face Linkage
(in-lb)
(in-lb)
damper
damper
flow Traq total qty linkage on face

3, 4, 6, 8

13.00

2

18.00

18.00

18.00

1

-

1

2

No

No

10, 12

16.00

2

22.50

22.50

22.50

1

-

1

2

No

No

14, 17

13.00

4

18.00

18.00

54.00

1

1

1

3

No

No

21, 22, 25, 26

16.00

4

22.50

22.50

67.50

1

1

1

3

No

No

30, 31, 35, 40
36, 41, 50, 57,
66

20.00

4

33.00

33.00

99.00

1

1

1

3

No

No

24.00

4

36.00

36.00

108.00

1

1

1

3

No

No

51, 58, 80

28.00

4

37.50

37.50

112.50

1

1

1

3

No

No

100

28.00

6

37.50

37.50

187.50

1

1

1

3

No

Yes

120

24.00

8

36.00

36.00

252.00

1

1

1

3

No

Yes

Table 19. Side Traq low-flow diagonal economizer

Unit
size

72

Damper
dia (in)

Damper
qty

Damper
Low flow Remainder Actuator Actuator qty
Face-totorque Traq torque Traq torque qty for low for remainder Actuator
face
(in-lb.)
(in-lb.)
(in-lb.)
flow Traq
damper
total qty linkage

Linkage
on face

4

13.00

2

18.00

18.00

18.00

1

1

2

No

No

6

13.00

2

18.00

18.00

18.00

1

1

2

No

No

8

13.00

2

18.00

18.00

18.00

1

1

2

No

No

10

16.00

2

22.50

22.50

22.50

1

1

2

No

No

12

16.00

2

22.50

22.50

22.50

1

1

2

No

No

14

16.00

2

22.50

22.50

22.50

1

1

2

No

No
Yes

17

13.00

4

18.00

18.00

54.00

1

1

2

No

21

20.00

2

33.00

33.00

33.00

1

1

2

No

No

25

16.00

4

22.50

22.50

67.50

1

1

2

No

Yes

30

20.00

3

33.00

33.00

66.00

1

1

2

No

Yes

35

28.00

2

37.50

37.50

37.50

1

1

2

No

No

40

28.00

2

37.50

37.50

37.50

1

1

2

No

No
Yes

50

24.00

3

36.00

36.00

72.00

1

1

2

No

57

24.00

4

36.00

36.00

108.00

1

1

2

No

Yes

66

28.00

3

37.50

37.50

75.00

1

1

2

No

Yes

80

28.00

4

37.50

37.50

112.50

1

1

2

No

Yes

100

28.00

5

37.50

37.50

150.00

1

1

2

No

Yes

120

28.00

5

37.50

37.50

150.00

1

1

2

No

Yes

CLCH-SVX07C-EN

Component Installation Requirements

Table 20. Side rectangle angle damper - 2000 fpm
Unit size

A (in)

B (in)

Damper
qty

Torque
(in-lb.)

Actuator torque
(max) (in-lb.)

Actuator
qty

3

11.25

13.97

1

13.10

42.00

1

No

4

11.25

13.97

1

13.10

42.00

1

No

Linkage

6

15.75

13.97

1

18.30

42.00

1

No

8

20.25

13.97

1

23.60

42.00

1

No

10

20.25

16.30

1

27.50

42.00

1

No

12

27.00

16.30

1

36.70

42.00

1

No

14

23.25

19.72

1

38.20

42.00

1

No

17

30.50

19.72

1

50.10

160.00

1

No

21

36.75

19.72

1

60.40

160.00

1

No

25

45.75

19.72

1

75.20

160.00

1

No

30

48.50

20.22

1

81.70

160.00

1

No

35

45.50

25.47

1

96.60

160.00

1

No

40

48.00

28.35

1

113.40

160.00

1

No

50

56.75

31.22

1

147.60

160.00

1

No

57

65.75

31.22

1

171.10

160.00

2

No

66

70.50

31.22

1

183.40

160.00

2

No

80

85.00

31.22

1

221.10

160.00

2

No

100

95.00

36.97

1

292.70

160.00

2

No

120

96.00

42.72

1

341.80

160.00

3

No

Table 21. Side rectangle damper per 1200 fpm - diagonal economizer with OA rectangular dampers
Actuator
torque (max)
(in-lb.)

Actuator qty

Unit size

A (in)

B (in)

Damper qty

Torque
(in-lb.)

3

12.50

13.97

1

14.60

42.00

1

No

4

13.75

19.72

1

22.60

42.00

1

No

6

18.75

19.72

1

30.80

42.00

1

No

8

24.25

19.72

1

39.90

42.00

1

No

10

23.50

25.47

1

49.90

160.00

1

No

12

29.00

25.47

1

61.60

160.00

1

No

14

26.00

31.22

1

67.60

160.00

1

No

17

32.00

31.22

1

83.30

160.00

1

No

21

40.00

31.22

1

104.10

160.00

1

No

25

48.00

31.22

1

124.90

160.00

1

No

30

47.00

36.97

1

144.80

160.00

1

No

35

48.00

42.72

1

170.90

160.00

2

No

40

48.00

48.47

1

193.90

160.00

2

No

50

57.75

48.47

1

233.30

160.00

2

No

57

67.50

48.47

1

272.60

160.00

2

No

66

69.50

28.35

2

277.10

160.00

2

Yes

Linkage

80

83.00

28.35

2

330.90

160.00

3

Yes

100

95.25

31.22

2

418.20

160.00

3

Yes

120

95.00

36.97

2

493.90

160.00

4

Yes

CLCH-SVX07C-EN

73

Component Installation Requirements

Table 22. Short mixing box rectangle damper - top, back or bottom only
Unit size

A (in)

B (in)

Damper Qty

Torque (inlb.)

Actuator Torque
(max) (in-lb.)

Actuator qty

3

13.00

8.22

1

5.20

42.00

1

No

4

19.75

8.22

1

7.90

42.00

1

No

Linkage

6

27.00

8.22

1

10.80

42.00

1

No

8

35.00

8.22

1

14.00

42.00

1

No

10

43.75

8.22

1

17.50

160.00

1

No

12

32.00

13.97

1

21.70

160.00

1

No

14

60.00

8.22

1

24.00

160.00

1

No

17

43.50

13.97

1

29.50

160.00

1

No

21

53.75

13.97

1

36.50

160.00

1

No

25

64.50

13.97

1

43.80

160.00

1

No

30

55.00

19.72

1

52.70

160.00

1

No

35

64.00

19.72

1

61.40

160.00

1

No

40

56.50

25.47

1

70.00

160.00

1

No

50

68.00

25.47

1

84.20

160.00

1

No

57

66.00

31.22

1

100.20

160.00

1

No

66

58.50

19.72

2

112.20

160.00

1

No

80

54.25

25.47

2

134.30

160.00

1

No

100

65.25

25.47

2

161.60

160.00

2

No

120

66.00

31.22

2

200.30

160.00

2

No

Table 23. Damper torque per blade (inch-pounds)

Unit size

74

2 Deck
Horizontal

2 Deck
Vertical

3 Deck
dual-actuator
Horizontal

3 Deck
dual-actuator
Vertical

3 Deck
single-actuator
Horizontal

3 Deck
single-actuator
Vertical

6

7.10

5.50

7.50

5.80

32.50

25.00

8

7.10

5.50

7.50

5.80

32.50

25.00

10

8.00

6.20

8.60

6.60

32.50

25.00

12

8.00

6.20

8.60

6.60

32.50

25.00

14

8.00

6.20

8.60

6.60

32.50

25.00

17

8.00

6.20

8.60

6.60

32.50

25.00

21

9.90

7.50

11.50

8.70

32.50

25.00

25

9.90

7.50

11.50

8.70

32.50

25.00

30

9.90

7.50

11.50

8.70

32.50

25.00

35

19.80

15.20

31.50

24.40

32.50

25.00

40

19.80

15.20

31.50

24.40

32.50

25.00

50

19.80

15.20

31.50

24.40

32.50

25.00

CLCH-SVX07C-EN

Component Installation Requirements

Table 24. Energy recovery bypass opposed-blade damper
Unit size

A (in)

B (in)

Damper
qty

Torque
(in-lb.)

Actuator Torque
(max) (in-lb.)

Actuator
qty

3-8

18.00

8.22

1

5.10

42.00

1

No

8 - 14

32.00

8.22

1

9.10

42.00

1

No

10 - 17

41.75

8.22

1

11.90

42.00

1

No

12 - 21

53.50

8.22

1

15.30

42.00

1

No

21 - 50

52.50

13.97

1

25.50

160.00

1

No

17, 21

61.50

8.22

1

17.60

42.00

1

No

Linkage

21 - 30

66.00

8.22

1

18.80

42.00

1

No

25 - 50

65.00

13.97

1

31.50

160.00

1

No

21

70.00

8.22

1

20.00

42.00

1

No

35 - 50

84.50

13.97

1

41.00

160.00

1

No

35 - 50

75.00

13.97

1

36.40

160.00

1

No

40 - 50

102.00

13.97

1

49.50

160.00

1

No

50

113.00

13.97

1

54.80

160.00

1

No

Linkage

Table 25. Exhaust fan damper torque
Unit size

A (in)

B (in)

Damper
Qty

Torque
(in-lb.)

Actuator Torque
(max) (in-lb.)

Actuator
qty

3

19.83

13.97

1

13.50

42

1

No

4

32.33

13.97

1

22.00

42

1

No

6

32.33

13.97

1

22.00

42

1

No

8

38.83

13.97

1

26.40

160

1

No

10

49.83

13.97

1

33.80

160

1

No

12

54.83

13.97

1

37.20

160

1

No

14

60.33

13.97

1

41.00

160

1

No

17

60.33

13.97

1

41.00

160

1

No

21

68.33

13.97

1

46.40

160

1

No

25

68.33

13.97

1

46.40

160

1

No

30

81.83

13.97

1

55.60

160

1

No

35

40.88

19.72

2

78.40

160

2

No

40

30.42

19.72

3

87.50

160

3

No

50

34.75

19.72

3

99.90

160

3

No

57

34.75

19.72

3

99.90

160

3

No

66

39.75

31.22

3

181.00

160

3

No

80

38.42

31.22

3

174.90

160

3

No

100

43.09

31.22

3

196.20

160

3

No

120

52.25

31.22

3

237.90

160

3

No

CLCH-SVX07C-EN

75

Component Installation Requirements

Table 26. Energy recovery recirculation parallel-blade damper
Unit size

A (in)

B (in)

Damper
qty

Torque
(in-lb.)

Actuator torque
(max) (in-lb.)

Actuator
qty

3

16.00

13.97

1

10.90

42.00

1

No

4

28.50

13.97

1

19.40

42.00

1

No

6

28.50

13.97

1

19.40

42.00

1

No

8

35.00

13.97

1

23.80

42.00

1

No

10

46.00

13.97

1

31.20

42.00

1

No

12

51.00

13.97

1

34.60

42.00

1

No

14

56.50

13.97

1

38.40

160.00

1

No

17

56.50

13.97

1

38.40

160.00

1

No

21

64.50

13.97

1

43.80

160.00

1

No

25

64.50

13.97

1

43.80

160.00

1

No

30

78.00

13.97

1

53.00

160.00

1

No

35

84.50

13.97

1

57.40

160.00

1

No

40

97.00

13.97

1

65.90

160.00

1

No

50

110.00

13.97

1

74.70

160.00

1

No

Table 27.

76

Linkage

Face damper torque requirements

Unit size

A (in)

B (in)

Damper Qty

Torque (in-lb)

Actuator torque
(max) (in-lb.)

3

23.20

19.72

1

13.80

42.00

1

4

35.70

19.72

1

21.30

42.00

1

Actuator Qty

6

35.70

25.47

1

27.50

42.00

1

8

42.20

25.47

1

32.50

42.00

1

10

53.20

25.47

1

40.90

42.00

1

12

58.20

31.22

1

54.90

160.00

1

14

63.70

31.22

1

60.10

160.00

1

17

63.70

36.97

1

71.10

160.00

1

21

71.70

42.72

1

92.50

160.00

1

22

50.94

54.82

1

84.36

160.00

1

25

71.70

48.47

1

105.00

160.00

1

26

50.94

68.19

1

104.93

160.00

1

30

85.20

48.47

1

124.70

160.00

1

31

29.19

68.19

2

120.25

160.00

1

35

43.44

50.94

2

133.70

160.00

1

36

33.19

73.94

2

148.26

160.00

1

40

32.19

50.94

3

148.60

160.00

1

41

33.19

91.19

2

182.85

160.00

2

50

36.52

62.44

3

206.70

160.00

2

51

39.94

91.19

2

220.03

160.00

2

57

36.52

68.19

3

225.70

160.00

2

58

39.94

102.69

2

247.78

160.00

2

66

41.52

73.94

3

278.20

160.00

2

80

41.52

85.44

3

321.50

160.00

3

100

46.19

99.41

3

416.10

160.00

3

120

55.35

99.41

3

498.70

160.00

4

CLCH-SVX07C-EN

Component Installation Requirements

Table 28. Internal face-and-bypass damper torque requirements
Unit size

A (in)

B (in)

Damper Qty

Torque (in-lb)

Actuator torque
(max) (in-lb.)

3

23.20

18.31

1

12.80

42.00

1

4

35.70

18.31

1

19.70

42.00

1

6

35.70

19.37

1

20.90

42.00

1

8

42.20

24.39

1

31.10

42.00

1

10

53.20

24.39

1

39.20

42.00

1

12

58.20

31.14

1

54.80

160.00

1

14

63.70

31.14

1

59.90

160.00

1

17

63.70

36.61

1

70.50

160.00

1

21

71.70

42.17

1

91.30

160.00

1

22

50.94

50.94

1

78.38

160.00

1

25

71.70

47.80

1

103.50

160.00

1

26

50.94

68.19

1

104.93

160.00

1

30

85.20

47.80

1

123.00

160.00

1

31

29.19

68.19

2

120.25

160.00

1

35

43.44

50.94

2

133.70

160.00

1

36

33.19

73.94

2

148.26

160.00

1

40

32.19

50.94

3

148.60

160.00

1

41

33.19

85.44

2

171.32

160.00

2

50

36.52

62.44

3

206.70

160.00

2

51

39.94

85.44

2

206.16

160.00

2

Actuator Qty

57

36.52

68.19

3

225.70

160.00

2

58

39.94

101.62

2

245.19

160.00

2

66

41.52

73.94

3

278.20

160.00

2

80

41.52

85.44

3

321.50

160.00

3

100

46.19

99.41

3

416.10

160.00

3

120

55.35

99.41

3

498.70

160.00

4

External face-and-bypass damper torque requirements
Unit size

A (in)

B (in)

Damper
Qty

Bypass Torque Face Torque
(in-lb)
(in-lb.)

Torque
(in-lb)

Actuator torque
(max) (in-lb.)

Actuator
Qty

3

19.83

13.97

1

8.40

13.80

22.20

42.00

1

4

32.33

13.97

1

13.60

21.30

34.90

42.00

1

6

32.33

13.97

1

13.60

27.50

41.10

42.00

1

8

38.83

13.97

1

16.40

32.50

48.90

160.00

1

10

49.83

13.97

1

21.00

40.90

62.00

160.00

1

12

54.83

13.97

1

23.10

54.90

78.00

160.00

1

14

60.33

13.97

1

25.50

60.10

85.50

160.00

1

17

60.33

13.97

1

25.50

71.10

96.60

160.00

1

21

68.33

13.97

1

28.80

92.50

121.40

160.00

1

22

49.83

13.97

1

21.03

84.36

105.39

160.00

1

25

68.33

13.97

1

28.80

105.00

133.80

160.00

1

26

49.83

19.72

1

29.69

104.93

134.61

160.00

1

30

81.83

13.97

1

34.50

124.70

159.30

160.00

1

31

60.33

19.72

1

35.94

120.25

156.19

160.00

1

35

41.17

13.97

2

34.70

133.70

168.40

160.00

2

36

68.33

19.72

1

40.71

148.26

188.96

160.00

2

40

27.61

13.97

3

35.00

148.6

183.50

160.00

2

CLCH-SVX07C-EN

77

Component Installation Requirements
External face-and-bypass damper torque requirements
Unit size

A (in)

B (in)

Damper
Qty

Bypass Torque Face Torque
(in-lb)
(in-lb.)

41

68.33

19.72

1

40.71

50

31.94

13.97

3

40.40

51

81.83

19.72

1

48.75

Torque
(in-lb)

Actuator torque
(max) (in-lb.)

Actuator
Qty

182.85

223.55

160.00

2

206.70

247.10

160.00

2

220.03

268.78

160.00

2

57

31.94

13.97

3

40.40

225.70

266.10

160.00

2

58

81.83

19.72

1

48.75

247.78

296.53

160.00

2

66

36.94

25.47

3

85.30

278.20

363.50

160.00

3

80

36.94

25.47

3

85.30

321.50

406.80

160.00

3

100

41.61

25.47

3

96.00

416.10

512.20

160.00

4

120

50.78

25.47

3

117.20

498.70

615.90

160.00

4

Opposed-Blade and Parallel-Blade Damper
Opposed-blade and parallel-blade airfoil dampers in unit
sizes 3-120, as well as internal and external face-andbypass sections, have centered dampers with an internal
jack-shaft (see Figure 86, Figure 87 and Figure 88). A 95degree actuator rotation gives a 90-degree blade travel.

Note: Damper blades should be checked for proper
operation from full open to full closed position
before unit start up. Damper blade positioning may
have changed due to shipping and handling
vibrations.

Figure 86. Typical mixing box configurations for unit sizes 3 to 120

78

CLCH-SVX07C-EN

Component Installation Requirements
5. Repeat steps 3 and 4 for the remaining zones.
Figure 87. Typical internal Figure 88. Typical external
face-and-bypass
face-and-bypass
configuration
configuration

6. Attach the damper operator drive rod to one blade axle
in each zone with the two-deck damper.
7.

Use the self-drilling screws provided to mount the
bearing bracket assembly (see Figure 89).

Note: The drive rod kits ship in a separate box, found in
the fan module or the cold deck of the multizone
module.
Open

Figure 89. Setting the zone damper rods and damper
linkage
Damper blades

Close

Close

Clip
CL0312
Damper
linkage bar

Multizone Modules
Under certain operating conditions, condensation may
form on the cold deck portion of the multizone damper
section. To prevent this, insulate around the damper rods.
Be sure the insulation does not affect damper operation.

Zone Damper Operators
Zone damper operators are available factory-mounted
with factory-mounted controls or as a stand-alone end
device. If not factory-provided, the contractor is
responsible for providing these operators. In all cases, the
damper operator should be connected to the drive rod.

Adjusting Zone Dampers
Zone dampers should be installed and adjusted prior to
making duct connections, assuring proper setup of the
damper zones:
1. Check the damper blades to confirm they are not
binding. The blade should rotate 90 degrees.
2. Determine the number of zones required. The zone
damper is fitted with a linkage bar that connects all
damper zones.
3. Select the number of damper segments required for
the first zone.
4. Cut a section out of the damper linkage bar just after
the last lever in that zone.
Note: It may be necessary to remove the damper linkage
bar to cut it. To remove the linkage bar pry the “e”
rings from the blade axles and remove the bar.

CLCH-SVX07C-EN

Drive rod
SHF1709

Damper
lever
Complete Kit DMP0670

Bearing
bracket assembly
BRK1756

Duct Connections
All duct connections to the air handlers should be installed
in accordance with the standards of the National Fire
Protection Association (NFPA):
•

NFPA 90A for installing air conditioning and ventilating
systems other than residence type.

•

NFPA 90B for residence-type warm air heating and airconditioning systems.

See unit submittal documentation for additional duct
mounting information.

Fan Discharge Connections
To ensure the highest fan efficiency, duct turns and
transitions must be made carefully, minimizing air friction
losses and turbulence. Proper ductwork installation, as
outlined by such organizations as Sheet Metal and Air
Conditioning Contractors National Association, Inc.
(SMACNA), should be followed closely.
Fan sections with rectangular and round openings have a
one-inch flange on the discharge that can be used to attach
the duct. When using lined ducts, the insulation should not
obstruct the discharge opening. For plenum fan sections
with bell mouth fittings, see “Bell Mouth Discharge
Connections” on page 82.

79

Component Installation Requirements
Connections made directly to the discharge opening of a
housed fan should have a minimum of three fan diameters
of straight duct before any turns or transitions. The
ductwork should be the same size as the fan discharge
opening. The first turn of the connection should be in the
same direction as the fan rotation as shown in Figure 90.
The air that the fan discharges into the duct is extremely
turbulent and requires some length of duct to stabilize.
Abrupt changes in ductwork directly off the fan discharge
may adversely affect fan performance and acoustics.
Figure 90. Typical discharge ductwork
recommendations
Splitters or
turning vanes

Standard damper sections include mixing sections, filter
mixing sections, face dampers sections, internal face-andbypass sections, and economizer sections. There are two
damper blade configurations available - parallel-blade and
opposed-blade. Traq™ dampers are another type of
damper available in mixing box sections.
Ductwork attached to the standard damper sections
should be sized to fit the opening of the damper. Duct
opening dimensions are provided in the submittals. When
using lined duct, ensure that the insulation does not
obstruct the damper opening (see Figure 91 and
Figure 92).

3 fan
diameter
minimum

Note: Damper blades should be checked for proper
operation from full-open to full-closed position
before unit start up. Damper blade positioning may
have changed due to shipping and handling
vibrations.

Vane turns in same
direction as fan rotation

Figure 91.

Damper Connections

Typical section with duct flat/flange
connection- uninsulated or externally
insulated

Figure 92. Typical section with duct flat/flange
connection- internally insulated

Uninsulated Duct
Unit
Section

Insulated Duct
Unit
Section

Airflow

Flat Connection

80

Airflow

Flat Connection

CLCH-SVX07C-EN

Component Installation Requirements

Bottom Opening Duct Installation

3. Bottom of unit base elevation is flush with duct
opening in bottom of unit (see Figure 94 and
Figure 95).

1. Install gasket to duct flange to ensure air tight seal.
2. Install duct into place underneath framed opening in
unit base per Figure 93. Refer to factory curb layout
provided with unit submittals for duct size and
location.

Figure 93. Field-supplied duct connection to AHU bottom supply/return air opening
Bottom supply/
return airflow

Trane AHU
base (typical)

Trane AHU
base (typical)

Field-supplied
rigid duct

Field-supplied
rigid duct

Figure 94. Field-supplied duct connection details - curb mount

Unit
wall

Unit base
3-50-14 ga
57-120-10 ga

Supply opening
in floor

Unit floor

6 inches

3-120-16 ga
1 in. flange

3-120-10 ga

Roof Curb

Gasket
Field-supplied
duct

Building roofing
and structure
may vary per job

CLCH-SVX07C-EN

81

Component Installation Requirements

Figure 95. Field-supplied duct connection details - pier mount

Unit
wall

Unit
floor

Supply opening
in floor

Unit base
3-57-3 inches
66-120-4 inches

1 in. flange
Gasket

Field-supplied
duct

Building roofing
and structure
may vary per job

Discharge Plenum Connections

Bell Mouth Discharge Connections

Discharge plenum sections are available with or without
openings. Sections with rectangular and round openings
have a framed opening that can be used to secure the duct
to the frames. If the duct is lined, it is important the
insulation does not obstruct the opening of the section.

Round duct connections to be fastened to plenum fan and
discharge plenum sections with bell mouth discharge
openings should be sized to attach to the casing or directly
to the bell mouth fitting. Attachment to the casing requires
the round duct diameter to be sized two inches larger than
the nominal bell mouth outlet. An angle ring with a flat
flange should be affixed to the round duct to secure the
duct to the casing (see Figure 96). Attachment to the bell
mouth fitting requires the duct and fitting to be insulated
by the installing contractor up to the bell mouth radius to
prevent condensation (see Figure 97). The bell mouth
fitting extends through the casing by one inch.

For a discharge plenum with field-cut openings, attach the
duct to the side panel.

82

CLCH-SVX07C-EN

Component Installation Requirements

Figure 96. Securing round duct to casing over bell
mouth outlet

Figure 97.

Securing round duct to bell mouth outlet

1 inch
1 inch

Bell mouth
outlet nominal
diameter

Bell mouth
outlet nominal
diameter

Airflow

Airflow

Round
duct

1 inch

1 inch
Round duct

External
insulation

Angle ring

Traq Damper Connections
Size the duct connections to attach to the specified portion
on the face of the mixing box that the duct connection
completely covers all of the Traq damper.

For a mitered corner, provide one hydraulic duct diameter
between the entering face of the Traq dampers and the
duct turn. For a radius elbow, or sweep, place the elbow
directly against the face of the Traq dampers (see
Figure 98).

Figure 98. Traq damper duct connections

W
d
Traq damper
mixing box

H

Inlet d
uct

Traq damper
mixing box
Radius elbow
(sweep)

Mitered
corner
d = 1 hydraulic duct diameter = 2 x W x H
W+H

CLCH-SVX07C-EN

83

Component Installation Requirements

External Face-and-Bypass Connections
The external face-and-bypass damper sections will
require a field-fabricated duct to direct the bypass air into
the appropriate section. Duct sizing recommendations are
listed in Table 29.

When bypassing into an access section, remove a panel. It
is not necessary to cut an opening.
Figure 99. External face-and-bypass with duct
configuration designed to bypass air into a
vertical fan section

Table 29. Recommended bypass duct sizes (inches)
Unit size

H

W

L

3
4
6
8
10
12
14
17
21
22
25
26
30
31
35
36
40
41
50
51
57
58
66
80
100
120

16.00
18.00
18.00
18.00
18.00
22.00
22.00
22.00
28.00
45.00
28.00
47.00
28.00
47.00
45.00
47.50
45.00
55.50
45.00
55.50
47.00
55.50
48.00
56.00
56.00
56.00

20.00
33.00
33.00
39.00
50.00
55.00
61.00
61.00
69.00
50.50
69.00
50.50
82.00
61.00
80.00
69.00
93.00
69.00
106.00
82.00
106.00
82.00
121.00
121.00
135.00
162.00

14.00
16.00
16.00
16.00
16.00
20.00
20.00
20.00
26.00
31.13
26.00
33.13
26.00
33.13
36.00
40.13
36.00
40.13
36.00
40.13
40.00
52.13
40.00
48.00
48.00
48.00

Duct

Fan

Coil

External
face-and-bypass

When attaching a bypass duct to a downstream fan section
or access section, the section will have a factory-provided
opening. (see Figure 99, Figure 100, and Figure 101.)
Figure 100. External face-and-bypass with duct configuration designed to bypass air around one coil

Duct

Fan

Coil

84

Access

Coil

External
face-and-bypass

CLCH-SVX07C-EN

Component Installation Requirements

Figure 101. External face-and-bypass with duct configuration designed to bypass air into a horizontal fan section

Duct

Fan

Coil

Coil

External
face-and-bypass

Other Connections
Access, filter, and other sections may have open inlets
with a 2-inch (sizes 3-120) panel frame for connecting the
ductwork. If the duct is lined, it is important the insulation
does not obstruct the opening of the section.

Figure 102. Typical duct flat/flange end of unit
connection - uninsulated

Figure 103. Typical duct flat/flange end of unit
connection - insulated
Thermal
break
2-inch panel
Internally insulated Duct

Thermal
break

Unit Section

2-inch panel
Airflow

Uninsulated Duct
2-inch panel

Unit Section
Airflow

Thermal
break
End of unit

2-inch panel
Thermal
break
End of unit

CLCH-SVX07C-EN

85

Coil Piping and Connections
NOTICE:
Connection Leaks!
Use a backup wrench when attaching piping to coils
with copper headers to prevent damage to the coil
header. Do not use brass connectors because they
distort easily and could cause connection leaks.

•

Use pipe sealer on all thread connections.

•

After completing the piping connections, seal around
pipe from inner panel to outer panel.

Drain Pan Trapping
WARNING
No Step Surface!

NOTICE:
Over Tightening!
Do not use Teflon-based products for any field
connections because their high lubricity could allow
connections to be over-tightened, resulting in damage
to the coil header.

Do not walk on the sheet metal drain pan. Walking on
the drain pan could cause the supporting metal to
collapse, resulting in the operator/technician to fall.
Failure to follow this recommendation could result in
death or serious injury.

NOTICE:
NOTICE:
Leakage!
Properly seal all penetrations in unit casing. Failure to
seal penetrations from inner panel to outer panel could
result in unconditioned air entering the module, and
water infiltrating the insulation, resulting in equipment
damage.

General Recommendations
Proper installation, piping, and trapping is necessary to
ensure satisfactory coil operation and to prevent
operational damage:
•

Support all piping independently of the coils.

•

Provide swing joints or flexible fittings on all
connections that are adjacent to heating coils to
absorb thermal expansion and contraction strains.

•

If the coil was ordered with factory-mounted controls,
install the control valves. The valves ship separately.

Note: The contractor is responsible for supplying the
installation hardware.
•

For best results, use a short pipe nipple on the coil
headers prior to making any welded flange or welded
elbow type connections.

•

Extended drain and vent connections are provided as
standard on D1 and D2 coils only. If extended drains
and vents are required on other water coils, they must
be field-installed or ordered as specials from the
factory.

•

Pipe coils counterflow to airflow.

•

When attaching the piping to the coil header, make the
connection only tight enough to prevent leaks.
Maximum recommended torque is 200 foot-pounds.

86

Water Damage!
When more than one module has a drain pain, trap
each module individually. Connecting all drains to a
common line with only one trap can result in
condensate retention and possible water damage to
the air handler or adjoining space.
Threaded condensate drain connections are provided on
only one side of the coil section. Pitch the connection lines
horizontal or downward toward an open drain. Trane
recommends installing a plug to facilitate cleaning of the
trap. The drain connection sizes are:

Unit size

NPT (national pipe thread) external
connection

3-31

1-inch

35-58

1 1/4 inch

66-120

1 1/2 inch

Figure 30 illustrates the proper trapping, piping, and
operation of the trap. Use the formula under the figure to
determine the correct minimum depth for the condensate
trap. If a section has a drain pan for cleaning purposes
only, it does not need a trap; however, a cap or shutoff
valve should be installed on the drain connection. Only
sections handling condensate, such as a cooling coil
section or moisture eliminator section, require a trap.

CLCH-SVX07C-EN

Coil Piping and Connections

Table 30. Drain pan trapping for negative and positive pressure applications

H
L
J

Drain pan trapping for section
under negative pressure

Drain pan trapping for section
under positive pressure

L = H + J + pipe diameter where:
H = 1 inch for each inch of negative
pressure plus 1 inch
J = 1/2 H

L = H + J + pipe diameter where:
H = 1/2 inch (minimum)
J = 1/2 inch plus the unit positive static
pressure at coil discharge
(loaded filters)

Steam Coil Piping
Air handlers fitted with steam coils have labeled holes for
piping penetrations. Figure 104 illustrates a typical steam
coil piping configuration. See Table 31 for the codes of
system components in these figures.

Figure 104. Typical piping for Type NS steam coils and
horizontal tubes for horizontal airflow
MV
Ste

am

The coil condensate return line must be piped full size of
the condensate trap connection, except for a short nipple
screwed directly into the coil header’s condensate return
tapping. Do not bush or reduce the coil return trapping
size.
Table 31. Code of system components for piping figures
Code

Float and thermostatic steam trap

GV

Gate valve

OV

Automatic two-position (ON-OFF) control valve

VB

Vacuum breaker

ST

Strainer

AV

Automatic or manual air vent

MV

Modulating control valve

in

ST

Pit

ch

VB

dow

n

GV
Full size of
coil connection

w

Airflo

VB
GV

System component

FT

GV

ma

12 in. min.
ST

FT

Re
t

ur

n

Full
size
of
main

ST
FT

FT
ST

m

ai

n

12 in. min.

Full size of
steam trap
connection

CLCH-SVX07C-EN

87

Coil Piping and Connections

NOTICE:
Breaker Cracking Pressure!
The 1/2-inch NPT, 15 degree swing check valve vacuum
breaker is recommended because other vacuum
breakers, such as spring-loaded ball-check breakers,
have cracking pressures as high as 1.25 inches Hg (17
inches of water). Vacuum breakers with fitting sizes
smaller than 1/2 inch NPT are too small to relieve
vacuum quick enough to ensure complete condensate
drainage. Other types of swing check valve vacuum
breakers are acceptable if the fittings size is not smaller
than 1/2-inch NPT and the cracking pressure is not
larger than 0.25 inches HG (3.5 inches of water). Failure
to follow these instructions could result in equipment
damage.
To prevent coil damage, complete the following
recommendations:
•

Install a 1/2-inch NPT, 15 degree swing check valve
vacuum breaker with cracking pressure of 0.25 inches
Hg (3.4 inches water) or lower at the top of the coil. This
vacuum breaker should be installed as close to the coil
as possible.

•

For coil type NS, install the vacuum breaker in the
unused condensate return tapping at the top of the
coil.

•

Vent the vacuum breaker line to atmosphere or
connect it into the return main at the discharge side of
the steam trap

Note: Vacuum breaker relief is mandatory when the coil
is controlled by a modulating steam supply or
automatic two position (ON-OFF) steam supply
valve. Vacuum breaker relief is also recommended
when face-and-bypass control is used.

NOTICE:
Coil Condensate!
Condensate must flow freely from the coil at all times
to prevent coil damage from water hammer, unequal
thermal stresses, freeze-up and/or corrosion. In all
steam coil installations, the condensate return
connections must be at the low point of the coil. Failure
to follow these instructions could result in equipment
damage.

88

Proper steam trap installation is necessary for satisfactory
coil performance and service life. For steam trap
installation:
1. Install the steam trap discharge 12 inches below the
condensate return connection. Twelve inches provides
sufficient hydrostatic head pressure to overcome trap
losses and ensures complete condensate removal.
a. Use float and thermostatic traps with atmospheric
pressure gravity condensate return, with automatic
controls, or where the possibility of low-pressure
supply steam exists. (Float and thermostatic traps
are recommended because of gravity drain and
continuous discharge operation.)
b. Use bucket traps only when the supply steam is not
modulated and is 25 psig or higher.
Note: Trane steam coils require a minimum of 2 psi of
pressure to assure even heat distribution.
2. Trap each coil separately to prevent holding up
condensate in one or more of the coils.
3. Install strainers as close as possible to the inlet side of
the trap.
4. If installing coils in series airflow, control each coil
bank independently with an automatic steam-control
valve. Size the traps for each coil using the capacity of
the first coil in direction of airflow.
5. Use a modulating valve that has linear flow
characteristics to obtain gradual modulation of the coil
steam supply.
Note: Do not modulate systems with overhead or
pressurized returns unless the condensate is
drained by gravity into a receiver, vented to
atmosphere, and returned to the condensate
pump.
6. Pitch all supply and return steam piping down 1 inch
for every 10 feet in the direction of the steam or
condensate flow.
Note: Do not drain the steam mains or take-offs through
the coils. Drain the mains ahead of the coils
through a steam trap to the return line.
7.

Ensure overhead returns have 1 psig of pressure at the
steam trap discharge for every 2 feet of elevation for
continuous condensate removal.

CLCH-SVX07C-EN

Coil Piping and Connections

Water Coil Piping

1. Install an air vent in the top pipe plug tapping of the
return header.

Figure 105, and Figure 106 illustrate typical water coil
piping configurations.

2. When the return line rises above the top of the coil,
vent from the top of the return header horizontally to
the return piping.

Type 5A, 5W, D1, W, UW, TT, P,2, P4, and P8 water coils are
self-venting only if the water velocity exceeds 1.5 feet per
second (fps) in the coil tubes. Type D2, UA, UU, and WD
water coils are self-venting only if the water velocity
exceeds 2.5 fps in the coil tubes. See the unit submittals for
coil water velocity. If the water velocity is below these
minimums, vent the coil by one of the following methods:

Note: TT coils are designed with larger than normal end
tube sheet holes to allow for maximum expansion.
Air leakage around tubes should be expected and
handled by capping over coil ends or by sealing
around tubes with a pliable sealant such as
silicone.

Figure 105. Typical piping for type 5W one-row water coil
GV
AV

Water supply
main

AV

Le

ve
l

Water
return main
GV

Air

flow

GV

Drain

Figure 106. Typical piping for type 5A, 5W two-row, W 3- to 12-row, WD, D1, and D2 water coils
GV
AV
AV
Pit

ch

AV

do

wn

Air

er
Wat
n
mai

ter
Wa in
a
rn m

ly

supp

retu

flow

Drain

CLCH-SVX07C-EN

89

Coil Piping and Connections

Figure 107. Typical piping for stacked water coils

r
Wate main
ly
supp

AV
Pit

ch

AV
do

AV

wn

MV

r
Wate main
n
retur

GV

GV

w

flo

Air

Drain

Refrigerant Coil Piping
Note: Refer to for information on handling refrigerants.

Use Figure 108 to determine the proper, relative sequence
of the components in the refrigerant lines that connect the
condensing unit to an evaporator coil. Refer to “,” p. 93 for
more detailed schematics of evaporator piping.

Figure 108. Example of placement for split-system components

Condenser and
sbucooler coil

Access
port
Manual
ball valve

Discharge
line

Access
port

Filter

Manual
angle valves
Manual
ball valve

Compressors

Condensing unit

Check/relief
valve

Liquid line

Evaporator coil

Expansion
valves
Moistureindicating
sight glass
Distriburtor
Access
port

Solenoid
valve

Access
port

Filter drier
with access
port

Manual
ball valve
Manual ball valve

Frostat™ control

Suction line

Kit with sensor - X13790452010 SEN-01212
Kit with switch - X13100429010 THT 02442

90

CLCH-SVX07C-EN

Coil Piping and Connections

Liquid Lines
Line Sizing
Properly sizing the liquid line is critical to a successful splitsystem application. The selected tube diameter must
provide at least 5°F [2.7°C] of subcooling at the expansion
valve throughout the operating envelope. Increasing the
size of the liquid line will not increase the available
subcooling.
Routing. Install the liquid line with a slight slope in the
direction of flow so that it can be routed with the suction
line. Minimize tube bends and reducers because these
items tend to increase pressure drop and to reduce
subcooling at the expansion valve. Liquid line receivers,
other than those that are factory-installed, are not
recommended.

Insulation
The liquid line is generally warmer than the surrounding
air, so it does not require insulation. In fact, heat loss from
the liquid line improves system capacity because it
provides additional subcooling.

Components
Liquid-line refrigerant components necessary for a
successful job include a filter drier, access port, solenoid
valve, moisture-indicating sight glass, expansion valve(s),
and ball shutoff valves. Figure 108 illustrates the proper
sequence for positioning them in the liquid line. Position
the components as close to the evaporator as possible.
•

Filter drier. There is no substitute for cleanliness during
system installation. The filter drier prevents residual
contaminants, introduced during installation, from
entering the expansion valve and solenoid valve.

•

Access port. The access port allows the unit to be
charged with liquid refrigerant and is used to
determine subcooling. This port is usually a
Schraeder® valve with a core.

•

Solenoid valve. In split systems, solenoid valves
isolate the refrigerant from the evaporator during off
cycles; under certain conditions, they may also trim the
amount of active evaporator as compressors unload.
Generally, the “trim” solenoid valve is unnecessary for
variable-air-volume comfort-cooling applications, and
is only required for constant-volume applications
when dehumidification is a concern.

•

•

Thermal expansion valve. The expansion valve is the
throttling device that meters the refrigerant into the
evaporator coil. Metering too much refrigerant floods
the compressor; metering too little elevates the
compressor temperature. Choosing the correct size
and type of expansion valve is critical to assure it will
correctly meter refrigerant into the evaporator coil
throughout the entire operating envelope of the
system. Correct refrigerant distribution into the coil
requires an expansion valve for each distributor.

NOTICE:
Valve Damage!
Disassemble the thermal expansion valve before
completing the brazing connections. If necessary, wrap
the valve in a cool, wet cloth while brazing. Failure to
protect the valve from high temperatures could result
in damage to internal components.
The thermal expansion valve must be selected for proper
size and capacity. The size of the expansion valve should
cover the full range of loadings. Check that the valve will
successfully operate at the lightest load condition. For
improved modulation, choose expansion valves with
balanced port construction and external equalization.
Cut the process tube and cap assembly from the liquid
connection as shown in Figure 109 and install the
expansion valve directly to the liquid connections.

Figure 109. Type F refrigerant coil with packed elbow

Panel

Perforated plate
(packed elbow)

Cut here
for piping

Venturi type
distributor

Coil

Moisture-indicating sight glass. Be sure to install one
moisture-indicating sight glass in the main liquid line.
The only value of the sight glass is its moisture
indication ability. Use actual measurements of
temperature and pressure—not the sight glass—to
determine subcooling and whether the system is
properly charged. The moisture indicator/sight glass
must be sized to match the size of the liquid line at the
thermal expansion valve.

CLCH-SVX07C-EN

91

Coil Piping and Connections

Suction Lines

Components

Line sizing

Installing the suction line requires field installation of
these components: a filter, access port, and a Frostat™
control when the refrigerant coil is used with Trane
condensing units. Position them as close to the
compressor as possible.

Proper suction-line sizing is required to guarantee the oil
returns to the compressor throughout the system’s
operating envelope. At the same time, the line must be
sized so that the pressure drop does not excessively affect
capacity or efficiency. To accomplish both objectives, it
may be necessary to use two different line diameters: one
for the horizontal run and for vertical drops, and another
for the vertical lifts.

Note: Placement of the Frostat control is illustrated in
Figure 108 on page 90.
•

Filter. The suction filter prevents contaminants,
introduced during installation, from entering the
compressor. For this reason, the suction filter should
be the replaceable-core type, and a clean core should
be installed after the system is cleaned up.

•

Access port. The access port is used to determine
suction pressure. This port is usually a Schraeder valve
with a core.

•

Frostat™ coil frost protection. The Frostat control is the
preferred method for protecting evaporator coils from
freezing when the refrigerant coil is used with Trane
condensing units. It senses the suction-line
temperature and temporarily disables mechanical
cooling if it detects frost conditions. The control is
mechanically attached to the outside of the refrigerant
line, near the evaporator, and wired to the unit control
panel.

•

Ball shutoff valve. Adding manual, ball-type shutoff
valves upstream and downstream of the filter
simplifies replacement of the filter core.

Routing
To prevent residual or condensed refrigerant from “freeflowing” toward the compressor, install the suction line so
it slopes slightly—that is, by ¼ inch to 1 inch per 10 feet of
run—toward the evaporator. When the application
includes a suction riser, oil must be forced to travel the
height of the riser. Riser traps and double risers are
unnecessary in the suction line when the refrigerant coil is
used with Trane condensing units.
Avoid putting refrigerant lines underground. Refrigerant
condensation or installation debris inside the line, service
access, and abrasion/corrosion can quickly impair
reliability.

Insulation
Any heat that transfers from the surrounding air to the
cooler suction lines increases the load on the condenser
(reducing the system’s air-conditioning capacity) and
promotes condensate formation (adversely affecting
indoor air quality). After operating the system and testing
all fittings and joints to verify the system is leak-free,
insulate the suction lines all the way to inner side panel to
prevent heat gain and unwanted condensation.

92

CLCH-SVX07C-EN

Coil Piping and Connections

Field-Installed Evaporator Piping Examples
Figure 110. Single-circuit condensing unit: evaporator coil with one distributor

1. Pitch the liquid line slightly—1 inch/10 feet —so that
the refrigerant drains toward the evaporator.
2. Provide one expansion valve per distributor.
3. Slightly pitch the outlet line from the suction header
toward the suction riser—that is, 1 inch/10 feet in the
direction of flow. Use the tube diameter that matches
the suction-header connection.
4. For the vertical riser, use the tube diameter
recommended by the condensing unit manufacturer.
Assure the top of the riser is higher than the evaporator
coil.
5. Arrange the suction line so the refrigerant gas leaving
the coil flows downward, past the lowest suctionheader outlet, before turning upward.
6. Pitch the suction line slightly—1 inch/10 feet —so the
refrigerant drains toward the evaporator.
7.

Insulate the suction line.

CLCH-SVX07C-EN

93

Coil Piping and Connections

Figure 111. Single-circuit condensing unit: evaporator coil with two distributors
1. Pitch the liquid line slightly—1 inch/10 feet —so
Evaporator coil
the refrigerant drains toward the evaporator.
with horizontal-split
(standard) circuiting 2. Provide one expansion valve per distributor.

Suction line
7, 8

‘Trim’
solenoid valve
S

9
Sight
glass

Thermal
expansion
valve (TXV)
6

S

Liquid
line

1
Filter drier

9

5
‘Pump-down’
solenoid valve
Distributor

4

Liquid
line
2

3
5
3
4

94

4. Arrange the suction line so the refrigerant gas
leaving the coil flows downward, past the lowest
suction-header outlet, before turning upward.
Use a double-elbow configuration to isolate the
thermal expansion valve bulb from other
suction headers.

5. For horizontal tubing, use the tube diameter
recommended by the condensing unit
Evaporator coil with
manufacturer.
intertwined circuiting

7, 8

6

3. Slightly pitch the outlet line from the suction
header toward the suction riser—that is, 1 inch/
10 feet in the direction of flow. Use the tube
diameter that matches the suction-header
connection.

Sight
glass

2
Thermal
expansion
valve (TXV)
Distributor

S

1

6. For the vertical riser, use the tube diameter
recommended by the condensing unit
manufacturer. Assure the top of the riser is
higher than the evaporator coil.
7.

Pitch the suction line slightly—1 inch/10 feet —
so the refrigerant drains toward the evaporator.

Solenoid
Filter drier8. Insulate the suction line.
valve

9. Only use a “trim” solenoid valve for constantvolume, humidity-sensitive applications. For all
other applications, install a single solenoid valve
(the “pumpdown” solenoid valve) between the
liquid-line filter drier and the sight glass.

CLCH-SVX07C-EN

Coil Piping and Connections

Figure 112. Single-Circuit Condensing Unit: Evaporator Coil with Four Distributors
1. Pitch the liquid line slightly—1 inch/10 feet —so
the refrigerant drains toward the evaporator.
2. Provide one expansion valve per distributor.
3. Slightly pitch the outlet line from the suction
header toward the suction riser—that is, 1 inch/
10 feet in the direction of flow. Use the tube
diameter that matches the suction-header
connection.
4. Arrange the suction line so the refrigerant gas
leaving the coil flows downward, past the lowest
suction-header outlet, before turning upward.
Use a double-elbow configuration to isolate the
thermal expansion valve bulb from other
suction headers.
5. For horizontal tubing, use the tube diameter
recommended by the condensing unit
manufacturer.
6. For the vertical riser, use the tube diameter
recommended by the condensing unit
manufacturer. Assure the top of the riser is
higher than the evaporator coil.
7.

Pitch the suction line slightly—1 inch/10 feet —
so the refrigerant drains toward the evaporator.

8. Insulate the suction line.
Only use a “trim” solenoid valve for constantvolume, humidity-sensitive applications. For all
other applications, install a single solenoid valve
(the “pumpdown” solenoid valve) between the
liquid-line filter drier and the sight glass.

CLCH-SVX07C-EN

95

Coil Piping and Connections

Figure 113. Dual-circuit condensing unit: evaporator coil with two distributors

1. Pitch the liquid lines slightly—1 inch/10 feet —so the
refrigerant drains toward the evaporator.
2. Provide one expansion valve per distributor.

5. Arrange the suction line so the refrigerant gas leaving
the coil flows downward, past the lowest suctionheader outlet, before turning upward.

3. Slightly pitch the outlet line from the suction header
toward the suction riser—that is, 1 inch/10 feet in the
direction of flow. Use the tube diameter that matches
the suction-header connection.

6. The top of the Circuit 2 suction riser must be higher
than the top evaporator coil. Use the tube diameter
recommended by the condensing unit manufacturer
for the riser.

4. The top of the Circuit 1 suction riser must be higher
than the bottom evaporator coil. Use the tube diameter
recommended by the condensing unit manufacturer
for the riser.

7.

96

Pitch the suction lines slightly—1 inch/10 feet —so the
refrigerant drains toward the evaporator.

8. Insulate the suction lines.

CLCH-SVX07C-EN

Coil Piping and Connections

Figure 114. Dual-circuit condensing unit: evaporator coil with four distributors
1. Pitch the liquid line slightly—1 inch/10 feet —so
the refrigerant drains toward the evaporator.
2. Provide one expansion valve per distributor.
3. Slightly pitch the outlet line from the suction
header toward the suction riser—that is, 1 inch/
10 feet in the direction of flow. Use the tube
diameter that matches the suction-header
connection.
4. Arrange the suction line so the refrigerant gas
leaving the coil flows downward, past the lowest
suction-header outlet, before turning upward.
Use a double-elbow configuration to isolate the
thermal expansion valve bulb from other
suction headers.
5. For horizontal tubing, use the tube diameter
recommended by the condensing unit
manufacturer.
6. For the vertical riser, use the tube diameter
recommended by the condensing unit
manufacturer. Assure the top of the riser is
higher than the evaporator coil.
7.

Pitch the suction line slightly—1 inch/10 feet —
so the refrigerant drains toward the evaporator.

8. Insulate the suction line.
9. The top of the Circuit 1 suction riser must be
higher than the bottom evaporator coil. Use the
tube diameter recommended by the condensing
unit manufacturer for the riser.
10. The top of the Circuit 2 suction riser must be
higher than the top evaporator coil. Use the tube
diameter recommended by the condensing unit
manufacturer for the riser.

CLCH-SVX07C-EN

97

Coil Piping and Connections

Figure 115.Dual-circuit condensing unit: evaporator coil with eight distributors
1. Pitch the liquid line slightly—1 inch/10 feet —so
the refrigerant drains toward the evaporator.
2. Provide one expansion valve per distributor.
3. Slightly pitch the outlet line from the suction
header toward the suction riser—that is, 1 inch/
10 feet in the direction of flow. Use the tube
diameter that matches the suction-header
connection.
4. Arrange the suction line so the refrigerant gas
leaving the coil flows downward, past the
lowest suction-header outlet, before turning
upward. Use a double-elbow configuration to
isolate the TXV bulb from other suction headers.
5. For horizontal tubing, use the tube diameter
recommended by the condensing unit
manufacturer.
6. For the vertical riser, use the tube diameter
recommended by the condensing unit
manufacturer. Assure the top of the riser is
higher than the evaporator coil.
7.

Pitch the suction line slightly—1 inch/10 feet —
so the refrigerant drains toward the evaporator.

8. Insulate the suction line.
9. The top of the Circuit 1 suction riser must be
higher than the bottom evaporator coil. Use the
tube diameter recommended by the
condensing unit manufacturer for the riser.
10. The top of the Circuit 2 suction riser must be
higher than the top evaporator coil. Use the tube
diameter recommended by the condensing unit
manufacturer for the riser.
11. Only use a “trim” solenoid valve for constantvolume, humidity-sensitive applications. For all
other applications, install a single solenoid
valve (the “pumpdown” solenoid valve)
between the liquid-line filter drier and the sight
glass.

98

CLCH-SVX07C-EN

Installation - Electrical
WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by Trane
or others, refer to the appropriate manufacturer’s
literature for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
capacitors have discharged. Failure to disconnect
power and discharge capacitors before servicing could
result in death or serious injury.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06A-EN
.

NOTICE:
Use Copper Conductors Only!
Unit terminals are not designed to accept other types
of conductors. Failure to use copper conductors could
result in equipment damage.
Units intended for indoor use are available with starters or
variable-frequency drives (VFDs) that are externally
mounted in an enclosure or internally mounted in a
recessed cabinet. Units intended for outdoor use are only
available with internally mounted starters or VFDs. A
typical internally mounted VFD is shown in Figure 116. A
typical externally mounted VFD is shown in Figure 117.

Figure 116. Internally
mounted VFD

CLCH-SVX07C-EN

Typical wiring schematics for VFDs and starters are shown
in Figure 123 and Figure 124, respectively. Unit specific
wiring schematics are shipped with each unit.
All units with starters or VFDs that have direct-digital
controllers (DDCs) are provided with line voltage to 24 Vac
power transformers as shown in Figure 118. When
provided, the line voltage to 24 Vac transformers are
factory wired to the supply fan power feed. All units with
factory-mounted controllers, and no starters or VFDs, are
provided with 120 Vac to 24 Vac control transformers, as
shown in Figure 120, and require a separate 120V field
connection. As with starters or VFDs, units intended for
indoor use are available with DDCs mounted internally
(see Figure 118) or externally (see Figure 119 and
Figure 120), while units intended for outdoor use are only
available with internally mounted DDCs.
In units with 24Vac LED marine lights, the lights are wired
together to a single switch located in the controls interface
module. Figure 119 shows a typical mounting of the
controls interface module with an externally mounted
controller. When DDCs are provided, the lighting circuit is
powered from the DDC power feed and does not require a
separate power source. When marine lights are provided
without DDCs, the lighting circuit requires a separate 120V
field connection that powers the lights through a 120V to
24Vac power transformer.
A mounted GFCI receptacle is provided for all units that
have DDCs or marine lights. The receptacle is mounted in
the controls interface module (see Figure 119) with the unit
light switch. The receptacle requires a separate 120V
power feed.

Figure 117. Externally
mounted VFD

99

Installation - Electrical

Figure 118. Internal controller

Figure 119. External mounted
controller

Figure 120. External controller

Field installed DDC control devices:
•

Install outside-air sensor and space sensor, if ordered.

•

Connect control valves, if ordered, to the valve jack
provided as part of the unit wiring harness. The valve
jack is typically located at the air-leaving side of the coil
connection inside the casing panel. For valve junction
box mounting and wiring detail, see Figure 121.

Figure 121. Junction box for valve wiring

#10 self-drilling
screws (2)

Bushing
(2 required
for units with
double-wall)

2 x 4 junction box

Cover

Conduit
assembly
Doublewall panel

Airflow

End panel

100

Valve
connection

CLCH-SVX07C-EN

Installation - Electrical

Quick Connects
The actuators, factory-mounted or field-supplied, are
separately wired and controlled by a direct-digital
controller or other building logic. Figure 122 illustrates the
typical quick connect scheme.
Figure 122. Typical quick connects with wiring identification

Power 24 Vac

Wiring harness

Control signal
(2-10 Vdc)

Feedback signal
Actuator

If the unit does not include a factory-mounted starter,
wiring to the unit fan motor must be provided by the
installer and must comply with all national and local
electrical codes. The installer must also furnish a service
disconnect switch in compliance with national and local
electrical codes.
Fan motors require motor overload protective devices that
are rated or selected in compliance with the National
Electric Code (NEC) or Canadian Electric Code. Specific
unit and motor connection diagrams are provided on the
starter/VFD if Trane-provided, or refer to the motor
nameplate.
If wiring directly to the motor, a flexible connection at the
motor to permit fan belt adjustment should be provided.
Fractional horsepower motors may be factory connected
to a terminal box on the unit. If this construction is
provided, the installer should complete field wiring to this
connection box. For a typical high voltage wiring
schematic, see Figure 123.
Note: Properly seal all penetrations in unit casing. Failure
to seal penetrations from inner panel to outer panel
could result in unconditioned air entering the unit.

CLCH-SVX07C-EN

101

Installation - Electrical

Figure 123. Typical VFD wiring schematic

102

CLCH-SVX07C-EN

Installation - Electrical

Figure 124. Typical starter wiring schematic

CLCH-SVX07C-EN

103

Controls Interface
The portable operator display is used for temporary
connection to and operation of Tracer MP580/581
controllers. With the portable operator display, you can
monitor data, change setpoints, monitor alarms, and
override points. The portable operator display includes a
10 ft (3 m) cable with connector that is stored in the storage
compartment of the carrying bag. The cable cannot be
disconnected from the operator display. Keep this
document with the portable operator display for access to
calibration and cleaning instructions.
Note: The portable operator display is not used for
timeclock scheduling. To provide scheduling you
must use a Tracer Summit system.

Connecting the operator display
To connect the portable operator display:
1. Locate the factory-provided service module (see
Figure 125).
2. Attach the operator-display cable to the operatordisplay connector on the service module. The operator
display receives power from the controller and turns
on automatically when it is connected.
Figure 125. Service module

This section shows how to calibrate the operator display
touch screen and how to adjust the brightness and
contrast. To set up the operator display screens and
security, see the Tracer MP580/ 581 Programmable
Controller Programming guide (CNT-SVP01B-EN).

Calibrating the operator display
To calibrate the operator display:
1. On the home screen, press Setup. The Setup menu
appears.
2. Page down to view the next screen.
3. Press Calibrate Touch Screen. A calibration screen
appears.

NOTICE:
Equipment Damage!
Do not allow the operator display to come in contact
with sharp objects. This could result in equipment
damage.
4. Touch the target using a small, pliable, blunt object,
such as a pencil eraser or your finger. Hold until the
beeping stops. A second calibration screen appears.
5. Again, touch the target with the object. Hold until the
beeping stops. The Advanced Selection screen
appears.
6. Press Home. The home screen appears.

Adjusting brightness and contrast
To adjust the brightness and contrast of the operator
display:
1. On the home screen, press Setup. The Setup menu
appears.
2. Page down to view the next screen.
3. Press the Adjust Brightness and Contrast buttons. The
Brightness and Contrast screen appears.

Setting up the operator display

4. To increase the brightness, press the buttons along the
top row, in sequence, from left to right. To decrease the
brightness, press the buttons from right to left.
Note: Contrast adjustment is not available on all
computer display models.

NOTICE:
Water Damage!
To clean the operator display, use a cloth dampened
with commercial liquid glass cleaner. Spraying water or
cleaner directly on the screen could result in equipment
damage.

104

5. To increase the contrast, press the buttons along the
bottom row, in sequence, from left to right. To decrease
the contrast, press the buttons from right to left.
6. Press Home. The home screen appears.

CLCH-SVX07C-EN

Controls Interface

External communications port
Units with a factory-provided DDC controller can include a
service module (see Figure 125) with an external
communications port when purchased. Both the operator
display and Rover service tool can be connected without
shutting off the unit through the external communications
port. Open the cover plate on the service module and plug
into the RJ-11 port for the operator display or the RS 485
port for the Rover service tool. This enables continuous
operation of the air handler without disruption to the
operating conditions of the unit. When servicing of the unit
is complete, close the cover plate on the service module to
eliminate any air leakage path.

CLCH-SVX07C-EN

105

Start-Up
Pre-Startup Checklist

•

Once the air handler has been assembled and installed,
attention must be directed to individual components for
proper operation. Before operating the unit, complete the
pre-startup checklist.

Check piping and valves for leaks. Open or close the
valves to check for proper operation. Drain lines should
be open.

•

Leave this manual with the unit.

WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by Trane
or others, refer to the appropriate manufacturer’s
literature for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
capacitors have discharged. Failure to disconnect
power and discharge capacitors before servicing could
result in death or serious injury.

Fan-Related Checks
•

If the unit is not externally isolated, ensure that the fan
isolator tie-down bolts have been removed. See “Fan
Isolation” section on page 62 for more information.

•

Rotate all fan wheels manually to confirm they turn
freely in the proper direction.

•

Check fan shaft bearings, fan wheel, and drive sheave
set screws for proper torque settings (see Table 35 on
page 111.
– Fan sheaves should be tight and aligned.
– Bearing set screws should be torqued. See Table 48
on page 124 for torque values.

•

Check fan drive belt tension. See “Tension the Fan
Belt” section on page 109.

•

Inspect fan motor and bearings for proper lubrication,
if necessary. See “Fan Bearing Lubrication,” on
page 124.

For additional information regarding the safe discharge
of capacitors, see PROD-SVB06A-EN

General Checks

Coil-Related Checks

•

Ensure the unit has been installed level.

:

•

Ensure supply-air and return-air ducts have been
connected.

•

Ensure damper operator motors and connecting
linkage have been installed.

•

Verify damper operation and linkage alignment.

•

Check that air filters are in place and positioned
properly.

•

Remove any debris from the unit interior.

•

Remove all foreign material from the drain pan and
check drain pan opening and condensate line for
obstructions.

•

Close and secure all unit access doors.

•

If differential pressure switch is provided on filter rack,
adjust per system requirements.

•

Inspect electrical connections to the unit and unit
controllers.

NOTICE:
Proper Water Treatment!
The use of untreated or improperly treated water in
coils could result in scaling, erosion, corrosion, algae or
slime. It is recommended that the services of a qualified
water treatment specialist be engaged to determine
what water treatment, if any, is required. Trane
assumes no responsibility for equipment failures which
result from untreated or improperly treated water, or
saline or brackish water.
•

Ensure coil and condensate drain piping connections
are complete.

•

Check the piping and valves for leaks.
– Open or close the valves to check operation.
– The drain lines should be open.

•

If unit has a refrigerant coil, ensure that it has been
charged and leak-tested according to the instructions
provided with the condenser equipment. Adjust the
superheat setting.

•

Remove all foreign material from the drain pan and
check the pan opening and condensate line for
obstructions.

•

For steam coils, slowly turn the steam on full for at least
10 minutes before opening the fresh air intake on units
with fresh air dampers.

– Connections should be clean and secure.
– Compare the actual wiring with the unit diagrams.
– Reference the appropriate controller manual for
more details about starting units with factorymounted controls.

106

CLCH-SVX07C-EN

Start-Up

Motor-Related Checks
•

•

Locate installation manual from the motor
manufacturer for the specific motor installed. This can
be found by contacting the motor manufacturer’s
representative. The motor manufacturer’s
recommendations take precedence for all matters
related to the start-up and routine maintenance of the
motor.
Check the motor lubrication for moisture and rust.
– Remove and clean grease plugs to inspect.
– If moisture is present, consult an authorized repair
shop for bearing inspection/replacement. This may
require removal and transport of motor.
– If no moisture is present, refer to the motor
manufacturer’s lubrication recommendations for
proper lubrication.
– The motor manufacturer may recommend
lubricating the motor as part of their routine startup instructions.

•

Check motor winding. An acceptable winding
resistance reading is from 6 meg-ohms to infinity. If
reading is less than 5 mega-ohms, the winding should
be dried out in an oven or by a blower.

•

Inspect the entire motor for rust and corrosion.

•

Bump-start the unit and confirm the fan wheel rotates
properly, as indicated by the rotation arrow located on
the fan housing.

Note: For motor warranty needs, contact your local Trane
sales office.

WARNING
Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
work with live electrical components. Have a qualified
licensed electrician or other individual who has been
properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical
safety precautions when exposed to live electrical
components could result in death or serious injury.
Before complete start-up, bump-start the unit and confirm
the fan wheel rotates properly, as indicated by the rotation
arrow located on the fan housing.
After initial startup:
•

Calculate the motor voltage imbalance, notifying the
power company to correct unacceptable imbalances.

•

Periodically check the fan belt tension.

Calculate Motor Voltage Imbalance
After startup, measure the motor voltage and amperage
on all phases to ensure proper operation. The readings
should fall within the range given on the motor nameplate.
The maximum allowable voltage imbalance is 2 percent.
Voltage imbalance is defined as 100 times the sum of the
deviation of the three voltages from the average, divided
by twice the average voltage. For example, if the three
measured voltages are 221, 230 and 227, the average
voltage would be 226 volts. The percent of voltage
imbalance is then calculated.

Unit Operation
100A

Voltage imbalance = -------------------------------------------------2 × AvgVoltage

WARNING
Rotating Components!
During installation, testing, servicing and
troubleshooting of this product it may be necessary to
work with live and exposed rotating components. Have
a qualified or licensed service individual who has been
properly trained in handling exposed rotating
components, perform these tasks. Failure to follow all
safety precautions could result in rotating components
cutting and slashing technician which could result in
death or serious injury.

CLCH-SVX07C-EN

where:
A = (226-221) + (230-226) + (227-226)
Voltage imbalance = 2.2% (not acceptable)

In the example, 2.2 percent imbalance is not acceptable
and the power company should be notified to correct it.

VFD Programming Parameters
Units shipped with an optional variable frequency drive
(VFD) are preset and run-tested at the Trane factory. If a
problem with a VFD occurs, ensure that the programmed
parameters listed in Table 33 have been set. If trouble still
persist after verifying factory parameters are correct, call
Trane Drive Technical Support at 1-877-872-6363. Have the
unit serial number from the drive available for the
technical support representative. The technician will
determine if drive can be repaired or needs to be replaced.

107

Start-Up
.
Table 32. Trane TR200 Switching Frequency
Horsepower

Voltage

Max KHz

0.5 - 15

208/230

16

16

20 - 25

208/230

14

14

30 - 40

208/230

12

12

50

230

12

12

WARNING
Hazardous Voltage w/Capacitors!

Trane Setting

0.5 - 25

460

16

16

30 - 50

460

14

14

60 - 125

460

12

12

0.5 - 10

575

16

16

15 - 50

575

10

10

60 - 125

575

8

8

Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by Trane
or others, refer to the appropriate manufacturer’s
literature for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
capacitors have discharged. Failure to disconnect
power and discharge capacitors before servicing could
result in death or serious injury.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06A-EN

Table 33. Trane TR200 VFD Programming Parameters
Parameter #
TR200
3

Factory Default

Trane Setting

International

North American

103

Torque Characteristics (Fan Array only)

Auto Energy Optim. VT

Variable Torque (Fan Array only)

512

Terminal 27 Digital Input

Safety Interlock

Coast Inverse

121

Motor Power

Depends on unit

Set Based on Motor Nameplate

122

Motor Voltage

Depends on unit

Set Based on Motor Nameplate

124

Motor Current

Depends on unit

Set Based on Motor Nameplate

125

Rated Motor Speed

Depends on Parameter 102

Set Based on Motor Nameplate

173

Flying Start

Depends on application

Enable

302

Minimum Reference

6 Hz

0 Hz

303

Maximum Reference

60 Hz

60 or the Value of Maximum Inverter
Frequency (Hz) on Nameplate if fan is
direct drive.

315

Terminal 53 Analog Input

No Operation

Analog Input 53

341

Ramp-up Time

60 sec

30 sec

342

Ramp-down Time

60 sec

30 sec

412

Output Freq Low Limit

6 Hz

20 Hz

414

Output Freq High Limit

60 Hz

60 or the Value of Maximum Inverter
Frequency (Hz) on Nameplate if fan is
direct drive.

418

Current Limit

Depends on unit

110 percent

614

Terminal 53 Low Ref Feedback

0 Hz

20 Hz

615

Terminal 53 High Ref Feedback

Expression Limit

60 or the Value of Maximum Inverter
Frequency (Hz) on Nameplate if fan is
direct drive.

Switching Frequency

Depends on application

See Table 32.

1401

108

Description
Region

CLCH-SVX07C-EN

Start-Up

Tension the Fan Belt
Figure 127. Belt tensioner

NOTICE:
Belt Tension! (2 of 2)
Do not over-tension belts. Excessive belt tension will
reduce fan and motor bearing life, accelerate belt wear
and possibly cause shaft failure. Under tensioning belts
is the primary cause of premature belt failure. Belts
should not squeal at startup. Recheck belt tension after
8 hours, 24 hours, and 100 hours of operation and
monthly thereafter.

Force Scale
Small O-Ring

Proper belt tension is required to ensure maximum
bearing and drive component life and is based on motor
horsepower requirement. A label located on the bearing
support on the drive side of the unit lists all drive parts, the
proper belt tension, and deflection for that tension for the
specific drive (Figure 126).
If the drive is changed from the original, proper belt
tension can be estimated using Table 34.

Span Scale
Large O-Ring

The correct operation tension for a V-belt drive is the
lowest tension at which the belts will not slip under the
peak load conditions. It may be necessary, however, to
increase the tension of some drives to reduce excessive
belt flopping or to reduce excessive startup squealing.
Figure 128. Belt tension measurement
Figure 126. Tension drive belt label
Deflection =

V-BELT DRIVE KIT

1627373

MODULE 0400

Belt Span
64
Belt Span

PURCHASE ORD. NUMBER B24597-061 H5D073B A
CUSTOMER’S KIT # H5D073B A-012-0400
MTR HP.= 10.0
FAN RPM = 1458 CD = 9.4 AT 3.00 TRN OPN
TENSION INFO - 3.86 LB., 0.14 IN.
DRIVE’S BELTS - B40
MOTOR SHEAVE - 2VP75X 1 3/8
MOTOR BUSHING - NONE REQUIRED
FAN SHEAVE - 2B5V80
FAN BUSHING - B 1 7/16

Check the fan belt tension at least three times during the
first days of operation because there is a rapid decrease in
tension until the belt settles in. To measure belt tension,
use a belt tensiometer (see Figure 127). Determine actual
deflection by depressing one belt with the belt
tensiometer and measuring the deflection relative to the
other belts or to belt line (see Figure 128). Adjust the belt
tension to the correct pounds force and tighten all set
screws to the proper torque.

CLCH-SVX07C-EN

109

Start-Up

Table 34. Typical sheave diameter and deflection force
Belt Deflection Force (lbs)
Cross
section

Smallest sheave
diameter range
(in.)
3.0–3.6

A, AX

3.8–4.8
5.0–7.0
3.4–4.2

B, BX

4.4–5.6
5.8–8.6
7.0–9.0

C, CX
9.5–16.0
12.0–16.0
D
18.0–20.0
2.2–2.4
3V, 3VX

2.65–3.65
4.12–6.90

4.4–6.7
5V, 5VX

7.1–10.9
11.8–16.0
12.5–17.0

8V
18.0–22.4

Super gripbelts and
unnotched gripbands
Used belt

New belt

Used belt

New belt

1,000–2,500

3.7

5.5

4.1

6.4

2,501–4,000

2.8

4.2

3.4

5.0

1,000–2,500

4.5

6.8

5.0

7.4

2,501–4,000

3.8

5.7

4.3

6.4

1,000–2,500

5.4

8.0

5.7

9.4

2,501–4,000

4.7

7.0

5.1

7.6

860–2,500

n/a

n/a

4.9

7.2

2,501–4,000

n/a

n/a

4.2

6.2

860–2,500

5.3

7.9

7.1

10.5

2,501–4,000

4.5

6.7

7.1

9.1

860–2,500

6.3

9.4

8.5

12.6
10.9

2,501–4,000

6.0

8.9

7.3

500–1,740

11.5

17.0

14.7

21.8

1,741–3,000

9.4

13.8

11.9

17.5

500–1,740

14.1

21.0

15.9

23.5

1,741–3,000

12.5

18.5

14.6

21.6

200–850

24.9

37.0

n/a

n/a

851–1,500

21.2

31.3

n/a

n/a

200–850

30.4

45.2

n/a

n/a

851–1,500

25.6

38.0

n/a

n/a
4.9

1,000–2,500

n/a

n/a

3.3

2,501–4,000

n/a

n/a

2.9

4.3

1,000–2,500

3.6

5.1

4.2

6.2

2,501–4,000

3.0

4.4

3.8

5.6

1,000–2,500

4.9

7.3

5.3

7.9

2,501–4,000

4.4

6.6

4.9

7.3

500–1,749

n/a

n/a

10.2

15.2

1,750–3,000

n/a

n/a

8.8

13.2

3,001–4,000

n/a

n/a

5.6

8.5

500–1,749

12.7

18.9

14.8

22.1

1,750–3,000

11.2

16.7

13.7

20.1

500–1,749

15.5

23.4

17.1

25.5

1,750–3,000

14.6

21.8

16.8

25.0

200–850

33.0

49.3

n/a

n/a

851–1,500

26.8

39.9

n/a

n/a

200–850

39.6

59.2

n/a

n/a

851–1,500

35.3

52.7

n/a

n/a

Determine Fan Speed
WARNING
Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
measure the speed of rotating components. Have a
qualified licensed service individual who has been
properly trained in handling exposed rotating
components perform these tasks. Failure to follow all
safety precautions when exposed to rotating
components could result in death or serious injury.
110

Gripnotch belts and
notched gripbands

Speed (rpm)
range

Fan speed can be determined using a strobe-type
tachometer, or revolution counter.
Check unit vibration if the fan speed is changed more than
five percent from the original designed speed, or if parts
such as shafts, fan wheels, bearings, or other drive
components are replaced. Do not exceed the maximum
fan speed.
Pay particular attention to any vibration, noise, or
overheating of the motor and fan bearings; however, note
that bearings may run warm during break in.

CLCH-SVX07C-EN

Start-Up

Align Fan and Motor Sheaves
Figure 129. Proper drive alignment

Align the fan and motor sheaves using a straightedge. The
straightedge must be long enough to span the distance
between the outside edges of the sheaves. When the
sheaves are aligned, the straightedge will touch both
sheaves at points A through D (see Figure 129) to confirm
the shaft is parallel. For uneven width sheaves, place a
string in the center groove of both sheaves and pull tight.
Adjust the sheaves and tighten the sheave set screws to
the proper torque given in Table 35.

Center line
must coincide

D

Check Multiple Belts

Fixed
Sheave

Lines must
be parallel

Fixed
Sheave

C

Straight
Edge

Tighten the belts slightly and rotate the drive several
times.
On multiple belt drives, ensure the force of deflection is
approximately the same on each belt by pushing each belt
in an equal distance at a point halfway from each sheave
(see Figure 129). If this force is not the same for each belt,
the motor and fan shaft are not parallel. Realign as
required. After realignment, tighten the belts again to the
standard belt tensioning specifications. If the force is still
not the same for all belts, the belts or sheaves are worn
and must be replaced.

B

A

Adjustable
Sheave

Table 35. Fan and drive compound torque settings (inches)
Screw Size

Hex Key

Square Head

Hex Head

Torque (in.-lb.)

1/4

1/8

3/8

7/16

66-90

Torque (ft.-lb.)
5.5-7.5

5/16

5/32

1/2

1/2

126-164

10.5-13.7

3/8

3/16

9/16

9/16

228-300

19.0-25.0

7/15

7/32

5/8

5/8

348-450

29.0-37.5

1/2

1/4

3/4

3/4

504-650

42.0-54.2

5/8

5/16

15/16

15/16

1290-1390

107.0-116.0

#10

3/32

-

-

28-40

2.3-3.3

Airflow Measuring Systems
Figure 130. Traq damper terminal connections

Traq™ Dampers
Traq dampers are low-leak dampers that modulate and
measure airflow. Each Traq damper section is supplied
with a factory-mounted ventilation control module (VCM)
on the interior of the mixing box section. The VCM has an
input terminal for power and an output terminal for air
velocity (see Figure 130). A direct-digital controller
controls the factory-mounted and wired actuators.

Ventilation Control Module
Velocity (2-10 Vdc)

J4 (Red)

GND

J4 (White)

24 Vac

J2 (Black)

GND

J2 (Green)
J5 (Yellow)

Thermistor
J5 (White)

CLCH-SVX07C-EN

111

Start-Up

Figure 131. Traq damper terminal connections

( volts – 2 )
Airflow = k (cfm @ 10V) -----------------------------8
or
( volts – 2 )
-----------------------------Airflow = k (L/s @ 10V)
8

For example, if the VCM on a size 30 air handler at sea
level (k=1) has a 10-volt signal, it would represent
24,492 cfm (11,559 L/s) through the Traq damper. If
the voltage were 6 volts, airflow through the Traq
damper would be 12,246 cfm (5779 L/s).

J2
J4

Table 36. Altitude adjustment factors
Sea level = 1.0
Elevation (feet)
1000
2000
3000
4000
5000
6000
7000
8000
9000
10,000

J5

VCM (Transducer) Calibration. The VCM has an autozero function that recalibrates the transducer once every
minute. When troubleshooting, allow for the recalibration
time before making any measurements.

Table 37.

Input Power. The only input the VCM needs is the 24 Vac
power connected to terminals 1TB1–5 and 1TB1–6.

Output Velocity Signal. The 2 to 10 Vdc linear output
signal from the VCM represents air velocity. This voltage
can be converted to represent airflow (cfm or L/s) using the
formula below and Table 36.

k
0.982
0.964
0.949
0.930
0.914
0.897
0.876
0.860
0.846
0.825

In Table 38 through Figure 45, the cfm at 10Vdc
is a calculated value based on area and peak
velocity. In certain situations, it can be
advantageous to raise the velocity of air
through the remaining Traq dampers by
closing off one or more dampers in the unit. The
cfm at 10Vdc can be recalculated based on the
proportion of remaining Traq dampers or by
multiplying the remaining area of dampers by
peak velocity. Calculations are based on VCM
voltage versus airflow at sea level.

Table 38. Back or top inlet standard Traq damper-air mixing and indoor economizer section
Unit Size

Part Number

Traq Damper
Size (inches)

Quantity

Peak Velocity
(fpm)

Total Area
(ft2)

CFM @ 10VDC
Peak Velocity

L/s @ 10VDC
Peak Velocity

3

495100860001

13

1

2475

0.92

2279

1076

4, 6

495100860001

13

2

2475

1.84

4559

2151

8, 10

495100860001

13

3

2475

2.76

6838

3227

12, 14, 17

495100870001

16

3

2475

4.19

10,365

4891

21, 25

495100890001

20

3

2600

6.54

17,012

8028

22, 26

495100870001

16

4

2475

5.58

13,820

6525

30, 35, 40

495100880001

24

3

2600

9.42

24,492

11,558

31

495100890001

20

4

2600

8.72

22,682

10,708

36, 41

495100880001

24

3

2600

9.42

24,492

11,563

50, 57

495100900001

28

3

2600

12.83

33,358

15,742

51, 58

495100900001

28

3

2600

12.82

33,337

15,738

66

495100900001

28

4

2600

17.10

44,460

20,981

80

495100900001

28

5

2600

21.38

55,588

26,232

100, 120

495100900001

28

6

2600

25.66

66,716

31,483

112

CLCH-SVX07C-EN

Start-Up

Table 39. Back or top inlet low-flow Traq damper-air mixing and indoor economizer sections
Unit Size

Part Number

Traq Damper
Size (in)

4

495100860001

13

6

495100860001

13

8, 10

495100860001

13

12, 14, 17

495100870001

16

21, 25

495100890001

20

22, 26

30, 35, 40

495100870001

495100880001

16

24

31

495100890001

20

36, 41

495100880001

24

50, 57

495100900001

28

51, 58

495100900001

28

66

495100900001

28

80

495100900001

28

100

495100900001

28

120

495100900001

28

Damper
Type

Qty

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

3

Min. Outside Air

2

Economizing

3

Min. Outside Air

2

Economizing

4

Min. Outside Air

2

Economizing

4

Peak Velocity
(fpm)

Total Area
(ft2)

CFM @ 10VDC
Peak Velocity

L/s @ 10VDC
Peak Velocity

2475

0.92

2279

1076

2475

0.92

2279

1076

2475
2475
2600

2475

2600

2600

2600

2600

2600

2600
2600
2600
2600

0.92

2279

1076

1.84

4554

2149

1.40

3455

1630

2.79

6910

3261
2676

2.18

5671

4.36

11341

5352

1.40

3455

1631

4.19

10365

4893

3.14

8164

3853

6.28

16,328

7705

2.18

5671

2677

6.54

17,012

8031

3.14

8164

3854

6.28

16,328

7708

4.27

11,112

5244

8.55

22,224

10,488

4.27

11,112

5246

8.55

22,225

10,492

4.27

11,112

5244

12.82

33,336

15,731

4.27

11,112

5244

17.10

44,448

20,975

4.27

11,112

5244

8.55

22,224

10,488

4.27

11,112

5244

21.37

55,561

26,219

Table 40. Mixing box Traq damper inlet - single-side standard flow
Unit size

Part number

Traq damper
size (in)

Qty

Peak velocity Total area CFM@10VDC peak L/s@ 10VDC peak
(fpm)
(ft2)
velocity
velocity

3, 4, 6, 8

495100860001

13

1

2475

0.92

2279

1076

10, 12

495100870001

16

1

2475

1.40

3455

1631

14, 17

495100860001

13

2

2475

1.84

4559

2152

21, 22, 25, 26

495100870001

16

2

2475

2.79

6910

3262

30, 31, 35, 40

495100890001

20

2

2600

4.36

11,341

5354

36, 41, 50, 57, 66

495100880001

24

2

2600

6.28

16,328

7708

51, 58, 80

495100900001

28

2

2600

8.59

22,225

10,492

100

495100900001

28

3

2600

12.82

33,337

15,738

120

495100880001

24

4

2600

12.56

32,656

15,417

CLCH-SVX07C-EN

113

Start-Up

Table 41. Mixing box Traq damper inlet - single-side low flow
Unit size Part number

Traq damper
size (in)

14, 17

495100860001

13

21, 22, 25,
26

495100870001

16

30, 31, 35,
40

495100890001

20

36, 41, 50,
57, 66

495100880001

24

51, 58, 80

495100900001

28

100

495100900001

28

120

495100880001

24

Damper type

Qty

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

3

Peak velocity
(fpm)

Total area
(ft2)

CFM@10VDC
peak velocity

L/s@ 10VDC
peak velocity

2475

0.92

2279

1076

2475

1.40

3455

1631

2600

2.18

5671

2677

2600

3.14

8164

3854

2600

4.27

11,112

5246

4.27

11,112

5246

8.55

22,225

10,492

3.14

8164

3854

9.42

24,492

11,563

2600

2600

Table 42. Mixing box Traq damper inlet - dual-side standard flow
Traq damper
size (in)

Total area
(ft2)

CFM@10VDC peak L/s@ 10VDC peak
velocity
velocity

Part number

3, 4, 6, 8

495100860001

13

2

2475

1.84

4559

2152

10, 12

495100870001

16

2

2475

2.79

6910

3262

14, 17

495100860001

13

4

2475

3.68

9118

4305

21, 22, 25, 26

495100870001

16

4

2475

5.58

13,820

6525

30, 31, 35, 40

495100890001

20

4

2600

8.72

22,682

10,708

36, 41, 50, 57,
66

495100880001

24

4

2600

12.56

32,656

15,417

51, 58, 80

495100900001

28

4

2600

17.10

44,450

20,985

100

495100900001

28

6

2600

25.64

66,674

31,477

120

495100880001

24

8

2600

25.12

65,312

30,834

114

Qty

Peak velocity
(fpm)

Unit size

CLCH-SVX07C-EN

Start-Up

Table 43. Mixing box Traq damper inlet - dual-side low-flow
Unit size

Part number

Traq damper
size (in)

3, 4, 6, 8

495100860001

13

10, 12

495100870001

16

14, 17

495100860001

13

21, 22, 25,
26

495100870001

16

30, 31, 35,
40

495100890001

20

36, 41, 50,
57, 66

495100880001

24

51, 58, 80

495100900001

28

100

495100900001

28

120

495100880001

24

Damper type

Qty

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

1

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

5

Min. Outside Air

1

Economizing

7

Peak velocity
(fpm)

Total area
(ft2)

CFM@10VDC
peak velocity

L/s@ 10VDC
peak velocity

2475

0.92

2279

1076

2475

1.40

3455

1631

2475

2475

2600

2600

2600

2600

2600

0.92

2279

1076

2.76

6838

3228

1.40

3455

1631

4.19

10365

4893

2.18

5671

2677

6.54

17,012

8031

3.14

8164

3854

9.42

24,492

11,563

4.27

11,112

5246

12.82

33,337

15,738

4.27

11,112

5246

21.37

55,562

26,231

3.14

8164

3854

21.98

57,148

26,980

Table 44. Side inlet standard Traq dampers - diagonal economizer section
Unit size

Part number

Traq damper
size (in)

Quantity

Peak velocity
(fpm)

Total area
(ft2)

CFM@10VDC
peak velocity

L/s@10VDC peak
velocity

3

495100860001

13

1

2475

0.92

2279

1076

4, 6, 8

495100860001

13

2

2475

1.84

4559

2151

10, 12, 14

495100870001

16

2

2475

2.79

6905

3259

17

495100860001

13

4

2475

3.68

9118

4303

21

495100890001

20

2

2600

4.36

11,341

5352

25

495100870001

16

4

2475

5.58

13,820

6522

30

495100890001

20

3

2600

6.54

17,012

8028

35, 40

495100900001

28

2

2600

8.55

22,224

10,488

50

495100880001

24

3

2600

9.42

24,492

11,558

57

495100880001

24

4

2600

12.56

32,656

15,410

66

495100900001

28

3

2600

12.82

33,336

15,731

80

495100900001

28

4

2600

17.10

44,448

20,975

100, 120

495100900001

28

5

2600

21.37

55,561

26,219

CLCH-SVX07C-EN

115

Start-Up

Table 45. Side inlet low-flow Traq dampers - diagonal economizer section
Unit size

Part number

Traq damper
size (in)

4

495100860001

13

6

495100860001

13

8

495100860001

13

10

495100870001

16

12

495100870001

16

14

495100870001

16

17

495100860001

13

21

495100890001

20

25

495100870001

16

30

495100890001

20

35, 40

495100900001

28

50

495100880001

24

57

495100880001

24

66

495100900001

28

80

495100900001

28

100, 120

495100900001

28

Damper type
Min. Outside Air
Economizing
Min. Outside Air
Economizing
Min. Outside Air
Economizing
Min. Outside Air
Economizing
Min. Outside Air
Economizing
Min. Outside Air
Economizing

Qty

Peak velocity
(fpm)

Total area
(ft2)

CFM@10VDC
peak velocity

L/s@ 10VDC
peak velocity

1

2475

0.92

2279

1076

1

2475

0.92

2279

1076

1

2475

0.92

2279

1076

1

2475

1.40

3455

1630

1

2475

1.40

3455

1630

1

2475

1.40

3455

1630

Min. Outside Air

1

Economizing

3

Min. Outside Air
Economizing

1

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

2

Min. Outside Air
Economizing

1

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

2

Min. Outside Air

1

Economizing

3

Min. Outside Air

1

Economizing

4

2475
2600
2600
2600
2600
2600
2600
2600
2600
2600

0.92

2279

1076

2.76

6838

3227

2.18

5671

2676
1713

1.40

3630

4.19

10,889

5138

2.18

5671

2676

4.36

11,341

5352

4.27

11,112

5244

3.14

8164

3853

6.28

16,328

7705

3.14

8164

3853

9.42

24,492

11,558

4.27

11,112

5244

8.55

22,224

10,488

4.27

11,112

5244

12.82

33,336

15,731

4.27

11,112

5244

17.10

44,448

20,975

Trane utilizes AMCA certification for airflow measuring stations. Trane certifies that the Traq damper
herein is licensed to bear the AMCA seal. The ratings shown are based on tests and procedures performed
in accordance with AMCA Publication 611 and comply with the requirements of the AMCA Certified
Ratings Program.
The certification program provides the engineer and owner assurance that manufacturer-published
performance ratings for airflow measurement stations are accurate and repeatable. Trane Traq dampers
are certified with the integral ventilation control module which converts differential pressure to an
electronic signal for control.
Refer to Performance Climate Changer Air Handler catalog CLCH-PRC015-EN for Traq damper testing and
rating information.

116

CLCH-SVX07C-EN

Start-Up

Fan Inlet Airflow Measuring System
A fan inlet airflow measuring system is available on many
centrifugal and plenum fans. Each system comes with a
differential pressure transmitter. The minimum diameter
is connected to the LO port of the transmitter and the
reference pressure point is connected to (or actually is) the
HI port of the transmitter.

Figure 132. Fan inlet airflow measuring system

turndown on the smallest fans with the above range, a
transmitter with an accuracy of 0.25 percent (full scale) is
used as standard. If a field-provided transmitter with a
lower accuracy is selected, the range should be chosen
closer to the actual, maximum pressure differential
expected for the application.
The transmitter outputs a signal that represents the
differential pressure which is used to calculate airflow. To
adequately calculate and display the airflow for the
smaller fans, ensure that the analog input is programmed
with enough decimal places to sufficiently represent the
pressure differential being measured. For instance, Rover
should be used to increase the number of decimal places
being used (to a maximum of 4) on an MP-580/581
controller in lieu of the default zero.
Note that the adjustment of the “Zero” and “Span”
controls on the transmitter itself are not required at time of
installation. The transmitter is factory-calibrated to the
range selected and cannot be significantly adjusted to
“tighten” the range closer to the pressure being read for
the given application. The adjustments are primarily
provided to account for any drift that may occur over time.

Transmitter Calibration
Wiring
The transmitter requires 24VDC power on terminals 1 (+)
and 2 (ground) of the transmitter. When the airflow
measurement system is ordered with a factory-mounted
MP580 controller, the 24 VDC power will be supplied.
In the absence of a factory-provided MP580 controller, the
installing contractor must ensure the transmitter has
24VDC power.
Note: Ensure that the transmitter has a separate power
source.

Transmitter Sizing
The Trane specification requires that the flow meter option
have a total accuracy of 5 percent. The total accuracy is a
combination of:
•

how accurately the flow meter itself is in sensing
airflow

•

how accurately the transmitter senses the differential
pressure

•

how accurately the controller translates the signal
from the transmitter to a differential pressure.

Selecting the proper transmitter is critical in order to get
accurate airflow measurements. How accurately the
transmitter senses the differential pressure is dependent
on:
•

the pressure range selected

•

accuracy of the selected transmitter

The transmitter is factory-calibrated to a specific pressure
range with either a 0-20 inch or 0-40 inch w.g. range being
used in most cases. To check calibration and to adjust if
necessary, consult the transmitter manufacturer or the
factory for specific procedures.
The transmitter outputs a linear, 2-10 VDC signal
representing a differential pressure measurement. With
this measurement, the airflow through the fan can be
calculated using the following equation:
CFM = K * SQRT(DP)
Where:
CFM = Airflow (ft3/min.) assuming a standard air density of 0.075
lbm/ft3.
K = A constant factor that is unique for each fan. See “Constant
Factor K” section on page 118 for more information.
DP = Differential pressure (inches w.g.) being measured by the
transmitter.

Significant differences in elevation and/or temperature
will affect the density of air. For air at a constant, nonstandard density, a field-obtained K factor can be used.
Alternatively, the following equation can be used to
continuously correct the equation above:
ACFM = CFM * SQRT(0.075/ρ)
Where:
ACFM = Actual airflow (ft3/min.) corrected for non-standard air
density.
ρ = Density (lbm/ft3) of the air at the inlet to the fan.

Note: Alternative units, including SI, can be used in place
of the IP units above although the K-factor must be
converted appropriately.

Trane air handlers use either a 0-20 inch or a 0-40 inch
range transmitter as standard. To sufficiently cover VAV
CLCH-SVX07C-EN

117

Start-Up

Constant Factor K
The constant factor K is unique for each fan and is
primarily a function of the area and other geometric
properties of the fan inlet. Pre-engineered factors are
available from the factory for fan types where the airflow

measurement system is available. See Table 46 for singlefan K factors. For a multiple-fan system, the constant
factor K may need to be adjusted depending on how many
transmitters are supplied.

Table 46. Constant K Factors

Note:

118

Fan Size (inches)/Type

Fan Class

Fan Name

9 BC

Class I

9 BA

935.00

9 BC

Class II

9 BB

868.20

1To

K-Factor

10 BC

Class I

10 BA

1072.50

10 BC

Class II

10 BB

1072.50
2337.50

12 AF

Class I

12 AA

12 AF

Class II

12 AB

2237.30

15 AF

Class I

15 AA

3873.60

15 AF

Class II

15 AB

3873.60

18 AF

Class I

18 AA

4675.00

18 AF

Class II

18 AB

4675.00

20 AF

Class I

20 AA

5843.70

20 AF

Class II

20 AB

5119.90

22 AF

Class I

22 AA

7513.40

22 AF

Class II

22 AB

6624.10

25 AF

Class I

25 AA

9683.90

25 AF

Class II

25 AB

8891.10

28 AF

Class I

28 AA

12,856.20

28 AF

Class II

28 AB

11,795.00
16,295.60

32 AF

Class I

32 AA

32 AF

Class II

32 AB

16,295.60

36 AF

Class I

36 AA

19,701.70

36 AF

Class II

36 AB

19,367.80

40 AF1

Class I

40 AA

23,374.90

40 AF2

Class II

40 AA

25,378.40

40 AF1

Class I

40 AB

22,974.20

40 AF2

Class II

40 AB

25,044.50

44 AF

Class I

44 AA

30,113.00

44 AF

Class II

44 AA

30,113.00

49 AF

Class I

49 AB

37,470.00

49 AF

Class II

49 AB

37,470.00

20 FC

Class I

20 FA

7300.00

20 FC

Class II

20 FB

7203.90

22 FC

Class I

22 FA

9081.90

22 FC

Class II

22 FB

8793.10

25 FC

Class I

25 FA

12,030.00

25 FC

Class II

25 FB

11,700.00

28 FC

Class I

28 FA

14,450.00

28 FC

Class II

28 FB

14,036.00

be used for fan rpm < 700 or cfm < 25,500. 2To be used for fan rpm > 700 or cfm > 25,500.

CLCH-SVX07C-EN

Start-Up
Table 46. Constant K Factors
Fan Size (inches)/Type

Fan Class

Fan Name

K-Factor

32 FC

Class I

32 FA

20,400.00

32 FC

Class II

32 FB

20,150.00

36 FC

Class I

36 FA

28,049.90

36 FC

Class II

36 FB

27,549.00

40 FC

Class I

40 FA

39,236.40

40 FC

Class II

40 FB

38,067.70

10 BC belt-drive plenum

Class I or II

10 PA or 10 PB

563.00

11 BC belt-drive plenum

Class I or II

11PA or 11 PB

703.00
1168.70

12 AF belt-drive plenum

Class I or II

12PA or 12 PB

14 AF belt-drive plenum

Class I or II

14PA or 14 PB

1536.10

16 AF belt-drive plenum

Class I or II

16PA or 16 PB

1870.00

18 AF belt-drive plenum

Class I or II

18PA or 18 PB

2270.70
2905.20

20 AF belt-drive plenum

Class I or II

20PA or 20 PB

22 AF belt-drive plenum

Class I or II

22PA or 22 PB

3673.20

25 AF belt-drive plenum

Class I or II

25PA or 25 PB

4608.20

28 AF belt-drive plenum

Class I or II

28 PA or 28 PB

6277.80

32 AF belt-drive plenum

Class I or II

32 PA or 32 PB

7847.30

36 AF belt-drive plenum

Class I or II

36 PA or 36 PB

10017.80

40 AF belt-drive plenum

Class I or II

40 PA or 40 PB

13,023.10

44 AF belt-drive plenum

Class I or II

44 PA or 44 PB

14,692.80

49 AF belt-drive plenum

Class I or II

49 PA or 49 PB

18,299.20

55 AF belt-drive plenum

Class I or II

55 PA or 55 PB

23,901.00

63 AF belt-drive plenum

Class I or II

63 PA or 63 PB

31,135.00

10.50 AF direct-drive plenum

Class II

10 NF or 10 NW

630.00

13.50 AF direct-drive plenum

Class II

13 NR or 13 NF

952.00

15 AF direct-drive plenum

Class II

15 NR or 15 NF

1139.00

18 AF direct-drive plenum

Class II

18 NR or 18 NF

1673.00

20 AF direct-drive plenum

Class II

20 NR or 20 NF

1942.00

22 AF direct-drive plenum

Class II

22 NR, 22 NF, or 22 NW

2454.00

24 AF direct-drive plenum

Class II

24 NR, 24 NF, or 24 NW

3010.00

27 AF direct-drive plenum

Class II

27 NR or 27 NF

3701.00

30 AF direct-drive plenum

Class II

30 NR or 30 NF

4620.00

22 AF stacked direct-drive plenum

Class II

22 SF or 22 SW

2849.00

24.50 AF stacked direct-drive plenum

Class II

24 SF or 24 SW

4765.00

Note: (1) to be used for fan rpm < 700 or cfm < 25,500. (2) to be used for fan rpm > 700 or cfm > 25,500

When a single transmitter is supplied in a multiple fan
system, one or more fans will be brought back to the
transmitter as a manifold and the airflow will represent the
total airflow for the system. As a result, the factor should
be adjusted as follows:
K = N * K-Factor from Table 46
Where:
K = The final factor to be used for controller
programming.
N = The number of active* fans in the system.

CLCH-SVX07C-EN

*If

a fan fails in a multiple fan system where only one
transmitter is being supplied, and if the remaining fans will
continue to be used, the factor should be reduced
accordingly. Additionally, if the inactive fan was included
in the manifold back to the transmitter, the tubes from the
inactive fan should be temporarily removed and replaced
with tubes from an active fan (or simply plugged).
When a transmitter is supplied for each fan, the factor does
not need to be adjusted. The resulting airflow will
represent single-fan airflow. At the controller level, the
individual airflows should be summed to get the total
airflow. If a field-provided K-factor is to be used (see
below), the measured airflow for the system should be
divided by the number of active fans to get a single-fan
K-factor.

119

Start-Up
Field-obtained factors can provide maximum accuracy. To
obtain the factor in the field, measure the differential
pressure output from the transmitter while measuring the
airflow through the system. Once these two values have
been measured, simply solve for K using the following
equation:
K = ACFM/SQRT(DP)
Where:
K = Field-provided constant factor.
ACFM = Actual airflow (ft3/min.) being measured at the air density
being measured.
DP = Differential pressure (inches w.g.) being measured by the
transmitter.

External Insulating Requirements
The following areas should be specifically addressed, as
applicable:
•

Supply and return water piping connections

•

Supply and return refrigerant piping connections

•

Condensate drain lines and connections

•

Outdoor-air-intake duct connections

•

Discharge duct connections

•

Special requirements for low-temperature-air systems

Maintenance
For a typical HVAC environment - especially with upstream
filtration - there should be little to no required
maintenance. In extreme cases or for mishaps (bearing
grease in the taps for example), the flow meter is easily
cleanable. The fan inlet airflow measuring system is
extremely simple: a few pressure taps, a few fittings, and
some tubing. Although unlikely, if any tap were to get
clogged, simply disconnect each side of the transmitter
and blast air in a reverse direction through the system.

120

CLCH-SVX07C-EN

Routine Maintenance
WARNING
Hazardous Service Procedures!

WARNING
Rotating Components!

The maintenance and troubleshooting procedures
recommended in this manual could result in exposure
to electrical, mechanical or other potential safety
hazards. Always refer to the safety warnings provided
throughout this manual concerning these procedures.
Unless specified otherwise, disconnect all electrical
power including remote disconnect and discharge all
energy storing devices such as capacitors before
servicing. Follow proper lockout/tagout procedures to
ensure the power can not be inadvertently energized.
When necessary to work with live electrical
components, have a qualified licensed electrician or
other individual who has been trained in handling live
electrical components perform these tasks. Failure to
follow all of the recommended safety warnings
provided, could result in death or serious injury.

The following procedure involves working with
rotating components. Disconnect all electric power,
including remote disconnects before servicing. Follow
proper lockout/ tagout procedures to ensure the power
can not be inadvertently energized. Secure rotor to
ensure rotor cannot freewheel. Failure to secure rotor
or disconnect power before servicing could result in
rotating components cutting and slashing technician
which could result in death or serious injury.

Maintenance Checklist
Table 47. Maintenance Checklist
Frequency
After 48 hours
of operation
Every week

Maintenance

For belt-drive fans, the belts have acquired their permanent set. Readjust but do not overtighten. See “Tension the Fan Belt”
on page 109 for more information.
Observe unit weekly for any change in running condition and unusual noise.
• Clean or replace air filters if clogged or dirty; coat permanent filters with oil after cleaning; change bag filters when pressure
drop is 1 in. wg. See “Air Filters” on page 122 for more information.
Every month
• Belt-drive fans - relubricate fan bearings if necessary. See “Fan Bearing Lubrication” on page 124 for more information.
Belt-drive fans - check and adjust fan belt tension.See “Tension the Fan Belt” on page 109 for more information.
• Belt-drive fans - check fan bearing grease line connections. Lines should be tight to the bearings.
• Check motor bracket torque. See Table 48 on page 124 for torque requirements.
• Belt-drive fans - check bearing bolt torque and bearing setscrew torque. See Table 48 on page 124 for torque requirements.
Every three to • Belt-drive fans - align fan and motor sheaves. Tighten sheave set screws to the proper torque. See “Align Fan and Motor
Sheaves” on page 111 for more information.
six months
• Inspect and clean drain pans. See “Drain Pans” on page 122 for more information.
• Tighten electrical connections.
• Inspect coils for dirt build-up. See “Coils” on page 125 for more information.
• Inspect the unit casing for corrosion. If damage is found, clean and repaint.
• Clean the fan wheels and shaft. See “Fans” on page 123 for more information.
• Inspect and clean drain pans.
• Check damper linkages, set screws, and blade adjustment. Clean, but do not lubricate, the nylon damper rod bushings.
• Clean damper operators.
• Inspect electrical components and insulation.
Every year
• Inspect wiring for damage.
• Rotate the fan wheel and check for obstructions. The wheel should not rub. Adjust the center if necessary.
• Lubricate motor bearings in accordance with motor manufacturer’s recommendations (see “Motor Bearing Lubrication” on
page 124 for more information).
• Check condition of gasketing and insulation around unit, door and dampers.
• Examine flex connections for cracks or leaks. Repair or replace damaged material.

CLCH-SVX07C-EN

121

Routine Maintenance

Air Filters

Drain Pans

WARNING
Rotating Components!

WARNING
Hazardous Chemicals!

The following procedure involves working with rotating
components. Disconnect all electric power, including
remote disconnects before servicing. Follow proper
lockout/ tagout procedures to ensure the power can
not be inadvertently energized. Secure rotor to ensure
rotor cannot freewheel. Failure to secure rotor or
disconnect power before servicing could result in
rotating components cutting and slashing technician
which could result in death or serious injury.

Coil cleaning agents can be either acidic or highly
alkaline and can burn severely if contact with skin
occurs. Handle chemical carefully and avoid contact
with skin. ALWAYS wear Personal Protective Equipment
(PPE) including goggles or face shield, chemical
resistant gloves, boots, apron or suit as required. For
personal safety refer to the cleaning agent
manufacturer’s Materials Safety Data Sheet and follow
all recommended safe handling practices. Failure to
follow all safety instructions could result in death or
serious injury.

Throwaway Filters
To replace throwaway filters, install new filters with the
directional arrows pointing in the direction of airflow.
Note: Bag and cartridge filters must have an airtight seal
to prevent air bypass. If using filters not supplied by
Trane, apply foam gasketing to the vertical edges of
the filter.

Permanent Filters
To clean permanent filters:
1. Disconnect all electrical power to the unit.
2. Wash the filter under a stream of water to remove dirt
and lint.
3. Remove oil from the filter with a wash of mild alkali
solution.
4. Rinse the filter in clean, hot water and allow to dry.
5. Coat both sides of the filter by immersing or spraying
it with Air Maze Filter Kote W or an equivalent.
6. Allow to drain and dry for about 12 hours.
7.

Reinstall the filter.

Note: It may be preferable to keep extra, clean filters to
replace the dirty filters to minimize unit downtime
for filter maintenance.

Cartridge or Bag Filters
To replace cartridge or bag filters:
1. Disconnect all electrical power to the unit.
2. Remove the dirty filters from their installed position.
3. Keeping the new bag filters folded, slide each filter into
the filter rack, pushing them tightly against the unit.
Note: The pleats should be in the vertical position.
4. If using the optional pre-filters, replace them on the
appropriate filter rack.
5. Close and secure the access door.

122

WARNING
No Step Surface!
Do not walk on the sheet metal drain pan. Walking on
the drain pan could cause the supporting metal to
collapse, resulting in the operator/technician to fall.
Failure to follow this recommendation could result in
death or serious injury.
The condensate drain pan and drain line must be checked
to assure the condensate drains as designed. This
inspection should occur a minimum of every six months or
more often as dictated by operating experience.
If evidence of standing water or condensate overflow
exists, identify and remedy the cause immediately. Refer
to “Troubleshooting” on page 129 for possible causes and
solutions.
To clean drain pans:
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective
equipment, remove any standing water.
3. Scrape solid matter off of the drain pan.
4. Vacuum the drain pan with a vacuum device that uses
high-efficiency particulate arrestance (HEPA) filters
with a minimum efficiency of 99.97 percent at
0.3 micron particle size.
5. Thoroughly clean any contaminated area(s) with a
mild bleach and water solution or an EPA-approved
sanitizer specifically designed for HVAC use.
6. Immediately rinse the affected surfaces thoroughly
with fresh water and a fresh sponge to prevent
potential corrosion of metal surfaces.
7.

Allow the unit to dry completely before putting it back
into service.

CLCH-SVX07C-EN

Routine Maintenance
8. Be careful any contaminated material does not contact
other areas of the unit or building. Properly dispose of
all contaminated materials and cleaning solution.

Fans

Bearing Set Screw Alignment
Align bearing set screws for belt-drive fans as illustrated in
Figure 133. Table 48 provides bearing set screw torque
measurements.
Figure 133. Alignment

WARNING
Rotating Components!
The following procedure involves working with rotating
components. Disconnect all electric power, including
remote disconnects before servicing. Follow proper
lockout/ tagout procedures to ensure the power can
not be inadvertently energized. Secure rotor to ensure
rotor cannot freewheel. Failure to secure rotor or
disconnect power before servicing could result in
rotating components cutting and slashing technician
which could result in death or serious injury.

s

ew

cr
et s
s
n
Alig

gn
Ali

ws

set

e
scr

Inspecting and Cleaning Fans
Fan sections of air handlers should be inspected every six
months at a minimum or more frequently if operating
experience dictates. If evidence of microbial growth
(mold) is found, identify and remedy the cause
immediately. Refer to “Troubleshooting” on page 129 for
possible causes and solutions. To clean the fan section:
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective
equipment, remove any contamination.
3. Vacuum the section with a vacuum device that uses
high-efficiency particulate arrestance (HEPA) filters
with a minimum efficiency of 99.97 percent at
0.3 micron particle size.
4. Thoroughly clean any contaminated area(s) with a
mild bleach and water solution or an EPA-approved
sanitizer specifically designed for HVAC use.
5. Immediately rinse the affected surfaces thoroughly
with fresh water and a fresh sponge to prevent
potential corrosion of metal surfaces.
6. Allow the unit to dry completely before putting it back
into service.
7.

Be careful any contaminated material does not contact
other areas of the unit or building. Properly dispose of
all contaminated materials and cleaning solution.

CLCH-SVX07C-EN

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Routine Maintenance

Torque Requirements
Refer to Table 48 for minimum torque of motor mounting
and bearings bolts. Refer to Table 35 on page 111 for
minimum setscrew torque.

Table 49. Compatible Greases
Type
Texaco Multi Fak 2
Shell Alvania 2
Mobil 532

Table 48. Minimum hex head bolt torque in lb.-ft.
(Grade 5 bolts)
Size (inches)

Thread Designation

Minimum Torque

1/4-20

UNC

6

1/4-28

UNF

7

65/16-18

UNC

14

5/16-24

UNF

16

3/8-16

UNC

24

3/8-24

UNF

28

7/16-14

UNC

42

7/16-20

UNF

45

1/2-13

UNC

69

1/2-20

UNF

83

9/16-12

UNC

99

9/16-18

UNF

118

5/8-11

UNC

150

5/8-18

UNF

176

3/4-10

UNC

254

3/4-16

UNF

301
358

7/8-9

UNC

7/8-14

UNF

422

1-8

UNC

500

1-14

UNF

602

Note: Soft metric conversions are not acceptable for screw and hex sizes.

Fan Bearing Lubrication
NOTICE:
Bearing Failure!
Do not mix greases with different bases within the
bearing. Mixing grease within the bearing could result
in premature bearing failure.
For belt-drive fans, the grease used in electric motor
bearings is usually not compatible with the grease used in
fan bearings. Never mix the two grease types! See
Table 49 for compatible greases and Table 50 for
maximum grease capacity.

Chevron Dura-Lith 2
Exxon Beacon
Keystone 84H

Table 50. Fan bearing maximum grease capacity
Shaft size (inches)

Capacity (fluid ounce)

1/2 - 3/4

1/7

7/8 - 1 3/16

3/8

1 1/4 - 1 1/2

5/8

1 11/16 - 1 15/16

7/8

2 - 2 7/16

1 1/4

2 1/2 - 2 15/16

2

•

Fan bearings without lubrication lines are sealed
bearings. Re-lubrication is not required.

•

Fan bearings equipped with lubrication lines should be
lubricated with a lithium-based grease that conforms
to NLGI No. 2 for consistency.

Motor Bearing Lubrication
Obtain an operation and maintenance manual from the
motor manufacturer for the specific motor installed. The
motor manufacturer’s recommendations take precedence
for all matters related to the start-up and routine
maintenance of the motor.
Motor grease fittings have been removed from factoryinstalled motors in compliance with UL regulations. Motor
bearings require periodic maintenance throughout their
life. Many different styles of motors come as standard
selections, so please obtain the motor IOM and use the
manufacturer-recommended grease.

Fan Motor Inspection
Inspect fan motors periodically for excessive vibration or
temperature.

Note: Lubricate the motor bearing according to the motor
manufacturer’s recommendations and use the
manufacturer-recommended grease. See “Motor
Bearing Lubrication” on page 124.

124

CLCH-SVX07C-EN

Routine Maintenance

Coils

6. Spray the leaving air side of the coil first, then the
entering air side.

All coils should be kept clean to maintain maximum
performance.

7.

Steam and Water Coils

8. Repeat steps 6 and 7 as necessary.

Thoroughly rinse both sides of the coil and the drain
pan with cool, clean water.

9. Straighten any coil fins that may have been damaged
during the cleaning process.

WARNING
Hazardous Voltage!

10. Confirm the drain line is open following the cleaning
process.

Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.

11. Allow the unit to dry thoroughly before putting it back
into service.

WARNING
Hazardous Chemicals!
Coil cleaning agents can be either acidic or highly
alkaline and can burn severely if contact with skin
occurs. Handle chemical carefully and avoid contact
with skin. ALWAYS wear Personal Protective Equipment
(PPE) including goggles or face shield, chemical
resistant gloves, boots, apron or suit as required. For
personal safety refer to the cleaning agent
manufacturer’s Materials Safety Data Sheet and follow
all recommended safe handling practices. Failure to
follow all safety instructions could result in death or
serious injury.

12. Replace all panels and parts and restore electrical
power to the unit.
13. Be careful any contaminated material does not contact
other areas of the unit or building. Properly dispose of
all contaminated materials.

Refrigerant Coils
WARNING
Hazardous Pressures!
Coils contain refrigerant under pressure. When cleaning
coils, maintain coil cleaning solution temperature
under 150°F to avoid excessive pressure in the coil.
Failure to follow these safety precautions could result in
coil bursting, which could result in death or serious
injury.

To clean steam and water coils:
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective
equipment, use a soft brush to remove loose debris
from both sides of the coil.
3. Install a block-off to prevent spray from going through
the coil and into a dry section of the unit and/or system
ductwork.

WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.

4. Mix a high-quality coil cleaning detergent with water
according to the manufacturer’s instructions.
Note: If the detergent is strongly alkaline after mixing (PH
8.5 or higher), it must contain an inhibitor. Follow
the cleaning solution manufacturer’s instructions
regarding the use of the product.
5. Place the mixed solution in a garden pump-up sprayer
or high-pressure sprayer. If a high pressure sprayer is
to be used:
– Maintain minimum nozzle spray angle of
15 degrees.
– Spray perpendicular to the coil face.
– Keep the nozzle at least 6 inches from the coil.

WARNING
Hazardous Chemicals!
Coil cleaning agents can be either acidic or highly
alkaline and can burn severely if contact with skin
occurs. Handle chemical carefully and avoid contact
with skin. ALWAYS wear Personal Protective Equipment
(PPE) including goggles or face shield, chemical
resistant gloves, boots, apron or suit as required. For
personal safety refer to the cleaning agent
manufacturer’s Materials Safety Data Sheet and follow
all recommended safe handling practices. Failure to
follow all safety instructions could result in death or
serious injury.

– Do not exceed 600 psi.
CLCH-SVX07C-EN

125

Routine Maintenance
To clean refrigerant coils:
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective
equipment, use a soft brush to remove loose debris
from both sides of the coil.
3. Install a block-off to prevent spray from going through
the coil and into a dry section of the unit and/or system
ductwork.
4. Mix a high-quality coil cleaning detergent with water
according to the manufacturer’s instructions.
Note: If the detergent is strongly alkaline after mixing (PH
8.5 or higher), it must contain an inhibitor. Follow
the cleaning solution manufacturer’s instructions
regarding the use of the product.
5. Place the mixed solution in a garden pump-up sprayer
or high-pressure sprayer. If a high pressure sprayer is
to be used:
– Maintain minimum nozzle spray angle of
15 degrees.
– Spray perpendicular to the coil face.
– Keep the nozzle at least 6 inches from the coil.
– Do not exceed 600 psi.
6. Spray the leaving air side of the coil first, then the
entering air side.
7.

Thoroughly rinse both sides of the coil and the drain
pan with cool, clean water.

8. Repeat steps 6 and 7 as necessary.
9. Straighten any coil fins damaged during the cleaning
process.
10. Confirm the drain line is open following the cleaning
process.
11. Allow the unit to dry thoroughly before putting it back
into service.

NOTICE:
Coil Freeze-up!
Drain and vent coils when not in use. Trane
recommends glycol protection in all possible freezing
applications. Use a glycol approved for use with
commercial cooling and heating systems and copper
tube coils. Failure to do so could result in equipment
damage.
Install field-fitted drains and vents to permit winterization
of coils not in use and to assist in evacuating air from the
water system during startup. If draining is questionable
because of dirt or scale deposits inside the coil, fill the coil
with glycol before the heating season begins.
Individual coil types determine how to properly winterize
the coil. To determine the coil type find the “Service Model
No of Coil” on the coil section nameplate. The coil type is
designated by the second and third digits on that model
number. For example, if the model number begins with
“DUWB,” the coil type is UW; if the model number begins
with “DW0B,” the coil type is W.
Note: On many unit sizes, there are multiple coils in the
coil section. Be sure to winterize all coils in a given
coil section.
To winterize type D1, D2, WL, LL, UA, UW, UU, W, P2, P4,
P8, WD, 5D, and 5W coils:
1. Remove the vent and drain plugs.
2. Blow the coil out as completely as possible with
compressed air.
3. Fill and drain the coil several times with full strength
glycol so that it mixes thoroughly with the water
retained in the coil.
4. Drain the coil out as completely as possible.

12. Replace all panels and parts and restore electrical
power to the unit.

5. To ensure no water remains in the coil, do not replace
the vent and drain plugs until the coils are put back into
service.

13. Be careful any contaminated material does not contact
other areas of the unit or building. Properly dispose of
all contaminated materials and cleaning solution.

Note: Use care in removing header plugs from Type P2,
P4, and P8 coils. Over-torquing may result in
twisted tubes.

Coil Winterization

Moisture Purge Cycle

Water coil winterization procedures consist primarily of
draining water from the coil before the heating season.
Trane recommends flushing the coil with glycol if coils will
be exposed to temperatures below 35 degrees.

By it’s very nature, any HVAC unit with a cooling coil serves
as a dehumidifier, reducing the surrounding air’s ability to
hold water vapor as its temperature falls. This normally
doesn’t present a problem when the unit is running.
However, when the fan stops, water vapor condenses on
the cold metal surfaces inside the air handler and remains
there until the air warms sufficiently to re-evaporate it.
This damp, dark environment—though temporary—can
encourage the growth of mold, mildew, and other
microbial contaminants.

126

CLCH-SVX07C-EN

Routine Maintenance
Providing a moisture purge cycle 15 to 30 minutes after
shutdown disperses the cold, humid air inside the airhandling system more evenly throughout the building.
This four-step cycle:
•

Closes the outdoor air dampers.

•

Turns off the cooling coil.

•

Opens any variable-air-volume terminals connected to
the air handler.

•

Operates the supply fan for 10 to 15 minutes.

Air movement discourages water condensation and
hastens re-evaporation of any condensate that does
happen to form. This simple preventative measure
effectively combats microbial growth and curbs moisturerelated deterioration of air-handling components.

Cleaning Non-Porous Surfaces
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
If microbial growth on a non-porous insulating surface
(closed cell insulation or sheet metal surface) is observed:
1. Disconnect all electrical power to the unit.

6. Repeat steps 4 and 5 as necessary.
7.

Confirm the drain line is open following the cleaning
process.

8. Allow the unit to dry thoroughly before putting it back
into service.
9. Replace all panels and parts and restore electrical
power to the unit.
10. Be careful any contaminated material does not contact
other areas of the unit or building. Properly dispose of
all contaminated materials and cleaning solution.

Cleaning Porous Surfaces
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
To clean a porous insulating surface (fiberglass
insulation):
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective
equipment, use a vacuum device with a HEPA filter
(99.97 percent efficient at 0.3 micron particles) to
remove the accumulated dirt and organic matter.

2. Wearing the appropriate personal protective
equipment, use a brush for sheet metal surfaces or a
soft sponge on a foil face or closed cell foam surface to
mechanically remove the microbial growth.

Note: Be careful not to tear the insulation surface or
edges.

Note: Be careful not to damage the non-porous surface of
the insulation.

4. Allow the unit to dry thoroughly before putting it back
into service.

3. Install a block-off to prevent spray from going into a dry
section of the unit and/or system ductwork.

5. Replace all panels and parts and restore electrical
power to the unit.

4. Thoroughly clean the contaminated area(s) with an
EPA-approved sanitizer specifically designed for HVAC
use.

6. Be careful any contaminated material does not contact
other areas of the unit or building. Properly dispose of
all contaminated materials and cleaning solution.

3. Confirm the drain line is open following the cleaning
process.

5. Rinse the affected surfaces thoroughly with fresh
water and a fresh sponge to prevent potential
corrosion of the drain pan and drain line

CLCH-SVX07C-EN

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Routine Maintenance

Ultraviolet (UV) Light
Maintenance
The intensity of the ultraviolet energy emitted from the
ultraviolet bulbs is dependent on the cleanliness and age
of the bulb. The surface of the bulb should be kept as clean
as possible for optimum intensity. Depending on the
filtration level of the HVAC system and the general hygiene
of the building, periodic cleaning may be necessary.
Before attempting any maintenance procedures, always
follow all warnings and cautions as detailed in this
maintenance section.

WARNING
Hazardous Voltage and Exposure to
Ultraviolet Radiation!
This product contains components that emit highintensity ultraviolet (UV-C) radiation which can be
harmful to unprotected eyes and skin. To avoid injury,
disconnect all electrical power, including remote
disconnects, and make sure the UV lights are off before
servicing. Follow proper lockout/tagout procedures to
ensure the power can not be inadvertently energized.
Failure to disconnect power before servicing could
result in burns or electrocution which could result in
death or serious injury.

WARNING
Hazardous Mercury Vapors!
If large numbers of UV bulbs are broken, an appropriate
respirator, as described in OSHA 1910.134, MUST be
worn to prevent inhalation of mercury vapors. Mercury
vapors are toxic and inhaling them could result in
poisoning and suffocation. Failure to follow this
recommendation could result in death or serious injury.

CAUTION
Broken Glass!
Bulbs are fragile and can be easily broken. To avoid
getting cut, always use cloth gloves and eye protection
when handling, cleaning or replacing these bulbs.
Bulbs may break if dropped or handled improperly.
Refer to the MSDS sheet from the bulb manufacturer
for additional safety information. Failure to handle
bulbs properly could result in minor to moderate injury.

1. Disconnect all electrical power to the unit and the
ultraviolet bulbs.
2. Wearing soft cloth gloves and safety glasses, use two
hands and firmly grasp the bulb at each end.
3. Rotate the bulb 90 degrees in either direction and move
bulb away from the fixture and out of unit.
4. Wipe down each bulb with a clean cloth and alcohol.
Avoid touching the bulb with bare hands as skin oils
can accelerate future glass soiling and degrade the
bulb performance.
5. Carefully return the bulb to the fixture and rotate it 90
degrees in either direction until it is firmly secured.
6. Close and latch all unit panels and reenergize power to
the lights.

Replacing the Bulbs
Ultraviolet bulbs should be replaced annually if operated
continuously or after 9,000 hours of use if operated
intermittently. Replacement bulbs must be the specific size
and wattage as originally supplied from the factory.
Note: Although the lights may continue to generate a
characteristic blue glow beyond 9,000 operating
hours, the ultraviolet radiation emitted by the bulbs
degrades over time and will no longer provide the
intended benefit.
1. Disconnect power to the HVAC unit and the ultraviolet
bulbs. SEE WARNING ABOVE.
2. Wearing soft cloth gloves and safety glasses, use two
hands and firmly grasp the bulb at each end.
3. Rotate the bulb 90 degrees in either direction and move
bulb away from the fixture and out of unit.
4. Carefully install a new replacement bulb in the fixture
and rotate it 90 degrees in either direction until it is
firmly secured.
5. If broken bulbs are found or if you are required to
dispose of used bulbs, the proper warning and
cautions must be followed.
6. Always use cloth gloves and suitable eye protection
when cleaning or replacing these bulbs. Bulbs may
break if dropped or handled improperly.

Disposal of Bulbs
UV bulbs, like fluorescent bulbs, contain mercury, which is
a regulated hazardous waste. The disposal requirements
for hazardous wastes are determined by local, state and
federal guidelines. Check all regulations before disposing
of bulbs to assure you have met all requirements.

Cleaning the Bulbs

Refer to the MSDS sheet from the bulb manufacturer for
additional disposal, handling and safety information.

Note: If bulbs are found to be broken, see the proper
warning and cautions below regarding broken
bulbs and hazardous vapors.

After replacing bulbs, close and latch all unit panels and
reenergize power to the lights.

128

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Troubleshooting
This section is intended to be used as a diagnostic aid only.
For detailed repair procedures, contact your local Trane
service representative.

WARNING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures recommended in this manual could result in exposure to electrical,
mechanical or other potential safety hazards. Always refer to the safety warnings provided throughout this manual
concerning these procedures. Unless specified otherwise, disconnect all electrical power including remote disconnect
and discharge all energy storing devices such as capacitors before servicing. Follow proper lockout/tagout procedures
to ensure the power can not be inadvertently energized. When necessary to work with live electrical components,
have a qualified licensed electrician or other individual who has been trained in handling live electrical components
perform these tasks. Failure to follow all of the recommended safety warnings provided, could result in death or
serious injury.

Table 51. Air handler troubleshooting recommendations
Symptom

Probable Cause

Allow machine to cool down and restart.

Over-lubrication

Clean surface of grease and purge.

Bearing is
Over tensioned belts
excessively hot
No lubricant

Motor fails to
start

Motor stalls

Excessive
vibration

Recommended Action

First start after relubrication (Grease distribution)

Adjust belt tension.
Apply lubricant. Check bearings for damage.

Misaligned bearing

Correct alignment. Check shaft level.

Blown fuse or open circuit breaker

Replace fuse or reset circuit breaker.

Overload trip

Check and reset overload.

Improper wiring or connections

Check wiring with diagram supplied on unit.

Improper current supply

Compare actual supply power with motor nameplate recommendations.
Contact power company for adjustments.

Mechanical failure

Check that motor and drive rotate freely. Check bearing lubricant.

Open phase

Check line for an open phase.

Overloaded motor

Reduce load or replace with larger motor.

Low line voltage

Check across AC line. Correct voltage if possible.

Poor alignment

Align bearing set screws (see Table 35 on page 111). Loosen and
retighten bearing set screws.

Shipping spacers not removed

Remove shipping spacers and/or bolts (see “Fan Isolation” on page 62).

Over tensioned belts

Adjust belt tension.

Misaligned drive

Align drive.

Motor runs and Partial loss of line voltage
then dies down Starter shorts when motor warms up

Check for loose connections. Determine adequacy of main power supply.

Motor does not Low voltage at motor terminals
come up to
Line wiring to motor too small
speed

Check across AC line and correct voltage loss if possible.

Overloaded motor
Motor overheats Motor fan is clogged with dirt preventing proper
ventilation
Motor mounting bolts loose
Excessive motor Rigid coupling connections
noise
Worn motor bearings

Rapid motor
bearing wear

Replace with larger sized wiring.
Reduce load or replace with a larger motor.
Remove fan cover, clean fan and replace cover.
Tighten motor mounting bolts.
Replace with flexible connections.
Replace bearings and seals.

Fan rubbing on fan cover

Remove interference in motor fan housing.

Excessive overhung load due to overtensioned drive

Check belt tension and overhung load.

Excessive overhung load due to a small diameter motor
Replace sheave with larger one.
sheave
Motor is poorly positioned

Loose fan belt

Replace starter.

Adjust belt tension.

Worn or damaged belt

Replace belt or belt set. Check sheave alignment.

Worn sheaves

Replace sheaves.

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Troubleshooting
Table 51. Air handler troubleshooting recommendations
Symptom

Short belt life

Bearing noise

Low water coil
capacity

Probable Cause

Replace sheaves.

Misaligned belt

Realign drive with MVP sheave set at mean pitch diameter.

Grease or oil on belts

Check for leaky bearings. Clean belts and sheaves.

Belt slipping

Improper belt tension. Adjust tension.

Belts rubbing

Remove obstruction or realign drive for clearance.

Poor alignment

Loosen bearing set screws and realign (see “Align Fan and Motor
Sheaves” on page 111)

Failed bearing

Replace bearing.

Inadequate lubrication

Replace bearing.

Incorrect airflow

Check fan operating condition.

Incorrect water flow

Inspect the water pumps and valves for proper operation and check the
lines for obstructions.

Incorrect water temperature

Adjust the chiller or boiler to provide the proper water temperature.

Coil is piped incorrectly

Verify coil piping (see “Coil Piping and Connections” on page 86).

Dirty fin surface

Clean the fin surface (see the “Coils” section on page 125).

Incorrect glycol mixture

Verify glycol mixture and adjust if necessary.

Incorrect airflow

Check fan operating condition.

Expansion valve is not operating properly or is sized
incorrectly

Check sensing bulb temperature.
Verify valve operation.
Verify proper valve size.

Incorrect refrigerant charge

Verify refrigerant charge and adjust if necessary.

Condensing unit failure

Verify condensing unit operation.

Low refrigerant Coil is piped incorrectly
coil capacity
Clogged refrigerant line filter

Excess dirt in
unit

Verify component operation

Dirty fin surface
Fin frosting

Verify defrost cycle operation.
Verify frostat operation.
Verify refrigerant charge.

Incorrect airflow

Check fan operating condition.

Coil is piped incorrectly

Verify coil piping (see “Coil Piping and Connections” on page 86).

Incorrect steam pressure

Verify steam pressure and adjust if necessary.
Check steam superheat.
Steam superheat should not exceed 50ºF.

Failure of steam line/condensate return components

Verify component operation

Boiler failure

Verify boiler operation

Dirty fin surface

Clean the fin surface (see the “Coils” section on page 125).

Plugged Drain Line

Clean drain line

Unit not level

Level unit

Improper trap design

Design trap per unit installation instructions

Improper trap design

Design trap per unit installation instructions
Level unit
Clean drain line

Coil face velocity too high

Reduce fan speed

Improper trap design

Design trap per unit installation instructions

Drain pan leaks/overflows

Repair leaks

Condensation on surfaces

Insulate surfaces

Missing filters

Replace filters

Filter bypass

Reduce filter bypass by ensuring all blockoffs are in place.

Microbial growth
(mold) inside air Standing water in drain pan
handler

130

Change filter core.
Clean the fin surface (see the “Coils” section on page 125).
Do not use steam to clean refrigerant coils.

Standing water
Unit not level
in drain pan
Plugged drain line

Wet interior

Verify coil piping (see “Coil Piping and Connections” on page 86.)

Failure of suction/liquid line components

Low steam coil
Excessive steam superheat
capacity

Drain pan is
overflowing

Recommended Action

Worn sheaves

See “Standing water in drain pan” above

CLCH-SVX07C-EN

Troubleshooting

CLCH-SVX07C-EN

131

Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the
leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad
portfolio of advanced controls and HVAC systems, comprehensive building services, and parts.
For more information, visit www.Trane.com.
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
© 2012 Trane All rights reserved
CLCH-SVX07C-EN 15 Oct 2012

We are committed to using environmentally

Supersedes CLCH-SVX07C-EN (29 Feb 2012)

conscious print practices that reduce waste.



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