LENNOX Package Units(both Units Combined) Manual L0806711

User Manual: LENNOX LENNOX Package Units(both units combined) Manual LENNOX Package Units(both units combined) Owner's Manual, LENNOX Package Units(both units combined) installation guides

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I STALLATIO
AN
NTENANC
iNSTRUCTiONS
(2,4)SA13 Series
lectric Coolin
Package Unit

TABLE
iNSTALLATiON
OPERATION

OF CONTENTS
......................................

..........................................

MAINTENANCE
WiRiNG

.....................................

DIAGRAM

WARRANTY

................................

........................................

2
7
8
9
10

Manufactured By
A.A.C.
A Lennox International Inc. Company
421 Monroe Street
Bellevue, OH 44811

[

A, CAUTION

The installation of this appliance must conform to the requirements of the National Fire Protection Association;
the National Electrical Code, ANSI/NFPA No. 70 (latest edition) in the United States; the Canadian Electrical
Code Part 1, CSA 22.1 (latest edition) in Canada; and any state or provincial laws or local ordinances. Local
authorities having jurisdiction should be consulted before installation is made. Such applicable regulations or
requirements take precedence over the general instructions in this manual.
# 48392M005

Save these instructionsfor future reference

Page 1

INSTALLATION
These instructions, and any instructions packaged with
mating components and/or accessories, should be carefully read prior to beginning installation. Note particularly
any CAUTIONS or WARNINGS in these instructionsand
all labels on the units.
These instructionsare intended as a general guide only, for
use by qualified personnel and do not supersede any national
or local codes in any way. Compliance with all local, state,
provincial, or national codes pertaining to this type of
equipment should be determined prior to installation.
These instructions explain the recommended method of
installation of the SA electric cooling unit and associated
electrical wi ring.

Location
The unit is designed to be located outdoors with sufficient
clearance for free entrance to the air inlet and discharge air
openings. The location must also allow for adequate
service access.
The unit must be installed on a solid foundation that will
not settle or shift. Adequate structural support must be
provided. Maintain minimum clearances as shown in Table
1 and install the unit in level position, isolate the base from
the building structure to avoid possible transmission of
sound or vibration into the conditioned space.

Minimum

Clearance

Requirements

The SA unit is designed and approved for use as a selfcontained ai r-to-ai r ai r conditioning system.
The unit is factory equipped with a transformer and blower
control for applications without auxiliary heat. An electric
heat accessory kit (PHK) can be ordered for field installation of additional heat where required.
IMPORTANT: This product has been designed and manufactured to meet ENERGY STAR criteria for energy efficiency.
However, proper refrigerant charge and proper air flow are
critical to achieve rated capacity and efficiency. Installation
of this product should follow the manufacturer's refrigerant
charging and air flow instructions. Failure to confirm
proper charge and airflow may reduce energy efficiency and shorten equipment life.
inspection

of Shipment

Upon receipt of equipment, carefully inspect it for possible
shipping damage. If damage is found, it should be noted on
the carrier's freight bill. Take special care to examine the
unit inside the carton if the carton is damaged. File a claim
with the transportation company.

Front

Rear

48"

0".

24'

Condenser
End

24"

Top

36"

Table 1

If any damages are discovered and reported to the carrier
DO NOT INSTALL THE UNIT, as claim may be denied.

Avoid placing the unit near quiet areas such as
sleeping quarters or study rooms. Normal operating
sound levels may be objectionable if the unit is placed
near certain rooms.

Check the unit rating plate to confirm specifications
are as ordered.

Do not permit overhanging structures or shrubs to
obstruct condenser air discharge inlet or outlet.

Limitations

For improved start-up performance, the indoor coil
should be washed with suitable detergent to remove
any residue from manufacturing
processes.

The unit should be installed in accordance with all national
and local safety codes.
Limitations of the unit and appropriate accessories must
also be observed.
The unit must not be installed with any ductwork in the
outdoor air stream. The outdoor fan is not designed to
operate against any additional static pressure.
Page 2

Exercise care when moving the unit. Do not remove any
packaging until the unit is near the place of installation. An
accessory lift kit can be purchased to aid in rigging (see
Figure 1). Spreaders whose length exceed the largest
dimension across the unit must be used across the top
of the unit. Recommended spreader length: 3 ton and smaller
package units - 44", 3.5 ton and larger units - 54".
# 48392M005

Clearances

Using

Accessory

Lift Kit

Spreaders
(Field Supplied)

All units require certain clearances for proper operation and
service. Refer to Table 1 for the minimum clearances to
combustibles as well as minimum clearances necessary
for servicing and proper unit operation.
In the U.S., units may be installed on combustible floors
made from wood or class A, B, or C roof covering material.
In Canada, units may be installed on combustible floors.
Service Access

To avoid possible
damage to unit
panels from lifting
clevis, place
packing material
between clevis
and panels before
lifting unit,

Figure

Access to all serviceable components is provided by four
removable panels: filter compartment, blower compartment, heater compartment, and top panel.
Condensate

Drain

The SA package unit is equipped with a 3/4" FPT coupling
for condensate line connection. Plumbing must conform to
local codes. Use a sealing compound on male pipe threads.

Units may also be moved or lifted with a forklift while still
in the factory-supplied packaging. The lengths of the
forks of the forklift must be a minimum of 42".

The condensate drain line must be properly trapped
and routed to a suitable drain. See Figure 3 for proper
drain arrangement. The drain line must pitch to an open
drain or pump to prevent clogging of the line. Seal around
the drain connection with suitable material to prevent air
leakage into the return air system.

Typical

Condensate

Drain

Connection

Roof Curb Installation
Unit

/--

Drain Connection

If a roof curb is used, follow the manufacturer's Installation
Instructions and be sure that all required clearances are
observed (see following Clearances section).

1.00" Min.

t2.oo
'-

Roof Curb Assembly

Max.

°'

Positive Liquid Seal Required _

Figure

Ductwork
Ductwork should be designed and sized according to the
methods in Manual Q of the Air Conditioning Contractors of
America (ACCA).

Figure

2
A closed return duct system shall be used. This shall not
preclude use of economizers or outdoor fresh air intake. It
is recommended that supply and return duct connections
at the unit be made with flexible joints.

# 48392M005

Page 3

ThesupplyandreturnairductsystemsshouldbedesignedfortheCFMandstaticrequirements
ofthejob.
They should not be sized by matching
of the duct connections on the unit.
Outdoor ductwork

airflow of the unit. Filters should be sized in accordance
with Table 2.

the dimensions

Minimum Required
for Disposable

must be insulated and waterproofed.

Equipment is shipped for side ductwork connection. The
unit can be converted to bottom ductwork connection by
removing the duct covers located over the bottom duct
openings and placing these covers over the side duct
openings (see Figure 4).

Surface
Filters

24,000

2.67

36,000

4.00

Area

To remove the bottom duct cover over supply opening:
1.

Remove screw on cover nearest side opening.
42,000

Lift end of cover slightly and push to slide back screw/
pin free from duct flange.

Slide duct cover out the side duct opening.

Removing

Bottom

Electrical

1. Remove screw and lift.
2. Slide cover to free back pin.

4.67
5.33

Table 2

Figure

48,000

Duct Covers

41111

Wiring

Base_

All wiring should be done in accordance with the
National Electrical Code, ANSI/NFPA No. 70 (latest
edition); Canadian Electrical Code Part 1, CSA C22.1
(latest edition); or local codes where they prevail. Use
wiring with a temperature limitation of 75°C minimum. Run
the 208 or 230 volt, 60 hertz electric power supply through
a fused disconnect switch to the connection box of the unit
and connect as shown in the wiring diagram located on the
inside of the control access panel.
Filters
Air filters are to be used with this heating/cooling unit.
Filters are not factory supplied in the unit. However, a
filter frame accessory is available from the manufacturer that allows filters to be installed within the unit.
If the filter frame accessory is not used, a filter must be
installed in the duct work by the installer. Filters must
always be installed ahead of the evaporator coil and must
be kept clean or replaced. Dirty filters will reduce the
Page 4

# 48392M005

Electrical

Access

Heater Power
Thermostat _Q_

Powersupplytotheunitmustcomplywithallapplicable
codesandtheNational
ElecticalCode(NEC)orCanadian
Electrical
Code(CEC).Afuseddisconnect
switchshouldbe
fieldprovided
fortheunit.Theswitchmustbeseparate
from
allothercircuits.

Entry
Line Voltage
Entry

Ifanyofthewiresupplied
withtheunitmustbereplaced,
replacement
wiremustbeofthetypeshownonthewiring
diagram.
Electrical
wiringmustbesizedtocarryminimum
circuitampacity
markedontheunit.Usecopperconductorsonly.Eachunitmustbewiredwithaseparate
branch
circuitandbeproperly
fused.

Figure 5
Thermostat
The room thermostat should be located on an inside wall
where it will not be subject to drafts, sun exposure, or heat
from electrical fixtures or appliances. Follow the

Typical
THERMOSTAT

E_------

OUTDOOR UNIT

[]

[_------

ECONOMIZER
NOT
INSTALLED

[_--

Connections

THERMOSTAT

OUTDOOR UNIT

E_------

-----[]

[]

Wiring

-----[]

[]

]

[_--

-----[_

WHITE

]

- -except

required by the indoor thermostat.
thermostat

installation

YELLOW

[_----

_CAUTION
[CJeonnections

BLUE

----

-- --

[_----

Do not connect

-- [_

GREEN

when

- --

Refer to the

--d_---

BLACK

instructions.

_'
GROUND

POWER WIRING
208/230=1-60

POWER

WIRING

POWER

24V CONTROL

WIRING

24V CONTROL

* W1, W2 CAN BE USED TO STAGE
ELECTRIC
HEAT ACCESSORY
ON 15 & 20 KW MODELS.
* 5 & 10 KW HEATER
ACCESSORY
FUNCTION
OFFW1
ONLY.

TYPICAL WIRING CONNECTI©N
1 PHASE

except

when
to the

POWER WIRING
200/230-3-60,
460/575-3=60
(90°C MIN.WIRE)

(gO°C MIN. WIRE)

CLASS

[CJconnections

required
by the indoor thermostat.
Refer
thermostat
installation
instructions.

GROUND
SCREW

I SCREW

(NED

AOAUTION
Do not connect

(NED

WIRING

CLASS

............
WIRING
2)

Wl, W2 CAN BE USED TO STAGE ELECTRIC
HEAT ACCESSORY ON 15 & 20 KW MODELS.
10 KW HEATER ACCESSORY FUNCTION OFF
Wl ONLY.

TYPICAL WIRING CONNECTION
3 PHASE

Figure
# 48392M005

ECONOMIZER

6
Page 5

manufacturer's
instructions
enclosed
withthermostat
for
generalinstallation
procedure.
Color-coded
insulated
wires
(#18AWG)shouldbeusedtoconnectthermostat
tounit.
Fourwiresarerequired
forcooling.

Heater Kit Accessory

Compressor

Units are shipped with compressor mountings factoryadjusted and ready for operation. Caution: Do not loosen
compressor mounting bolts.
Heater Kit Accessory (if used)

Installation

Blockoff
Heater

_!_i

ent
Panel

The unit is fully equipped for cooling operation without
auxiliary heat. A heater kit accessory may also be used.

Heater Kit

To install the heater kit accessory (see Figure 7):
1.

Disconnectthe powerand remove the heatercompartment access panel.

Disconnect the plug separating the high voltage wire
harness. Remove the high voltage wire harness plug
and discard.

Remove the heater blockoff by removing the four
screws holding it in place.

insert the heater into the control panel and fasten in
the same mounting holes.
Plug the heater wiring harness into the wire harness on
the control assembly. Field wiring of the auxiliary
heater is separate from the unit power supply. Wire the
power supply wiring for the heater to the appropriate
connections on the heater kit.

Replace the heater compartment access panel and
reconnect the power.

Removal of Unit from Common Venting

Seal any unused openings in the common venting
system.

are located and other spaces in the building. Turn on
clothes dryers and any appliance not connected to the
common venting system. Turn on exhaust fans, such
as range hoods and bathroom exhausts, so they will
operate at maximum speed. Do not operate a summer
exhaust fan. Close fireplace dampers.
4.

Following the lighting instructions, place the unit being
inspected in operation. Adjust the thermostat so the
appliance will operate continuously.

Test for spillage at the draft control relief opening after
5 minutes of main burner operation. Use the flame of a
match or candle.

Follow the preceding steps for each appliance connected to the common venting system.

After it has been determined that each appliance
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fireplace dampers, and
any other fuel burning appliance to their previous
condition of use.

System

When an existing indoor furnace is removed from a common
venting system serving other appliances, the venting system
is likely to be too large to properly vent the remaining attached appliances. The following test should be conducted
with each appliance while the other appliances connected to
the common venting system are not in operation.
1.

Figure

If improper venting is observed during any of the
above tests, the common venting system must be
corrected. See National Fuel Gas Code, ANSI
Z223.1 (latest edition)or CAN/CGA B149.1 & .2
Canadian installation Codes to correct improper
operation of common venting system.

Visually inspect the venting system for proper size
and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion, or other deficiencies which could cause an unsafe condition.
insofar as is practical, close all building doors and
windows between the space in which the appliances
remaining connected to the common venting system

Page 6

# 48392M005

OPERATION
Sequence

of Operation

CooHng
Upon cooling demand, the thermostat closes circuit R and Y.
Closing R and Y closes the unit contactor, starting the
compressor and outdoor fan. The thermostat automatically
closes R to G circuit which also brings on the indoor blower at
the same time. Upon satisfying cooling demand, the thermostat will open the above circuits and open the main contactor,
stopping the compressor and outdoor fan. (f the un(t is
equipped with a delay timer, the blower will continue to
operate for 90 seconds wh(ch improves system efficiency.
Circulating Air Blower
The circulating air blower is controlled by a timing circuit in the
blower control. Timings are not adjustable.
There is no blower "on" delay after a call for heating or
cooling. Blower "off" delay is 90 seconds after the thermostat is satisfied.
Cooling System Performance
For maximum performance of the cooling system, operating temperatures and pressure should be checked. Superheat should be determined at Standard AR( test conditions
of 82°F outdoor and 80°F indoor dry bulb/67°F wet bulb. (f
superheat measured deviates from values found in Table 3,
refrigerant charge should be adjusted accordingly for
maximum performance.

Suction

48,60

Superheat

22 °

15 °

20 °

12 °

20 °

10 °

Table 3

# 48392M005

Page 7

MAINTENANCE
Owner

Record

Model #
Serial #
Installation Date

Installed by:
Dealer
Address
Telephone #
License #

At the beginning of each heating season, system should
be checked as follows by a qualified service technician:
Periodic inspection and maintenance normally consists of
changing or cleaning the filters and cleaning the outdoor coil.
On occasion, other components may also require cleaning.
Filters
Filters should be checked at least every 6 weeks. Disposable filters should be replaced when dirty, and cleanable
filters should be cleaned regularly. It is important to keep
the air filters clean, as dirty filters can restrict airflow and
the blower motor depends upon sufficient air flowing
across and through it to keep from overheating.
Motors

indoor and outdoor fan and vent motors are permanently
lubricated and require no maintenance.
Outdoor

Coil

Dirt and debris should not be allowed to accumulate on the
outdoor coil surface or other parts in the air circuit. Cleaning should be as often as necessary to keep coil clean.
Use a brush, vacuum cleaner attachment, or other suitable
means. If water is used to clean the coil, be sure the power
to unit is shut off prior to cleaning. Care should be used
when cleaning the coil so that the coil fins are not
damaged.
Do not permit the hot condenser air discharge to be
obstructed by overhanging structures or shrubs.

Page 8

# 48392M005

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Page 9

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