ICP Evaporator Coils Manual LR708241

User Manual: ICP ICP Evaporator Coils Manual ICP Evaporator Coils Owner's Manual, ICP Evaporator Coils installation guides

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I Installation Instructions Fan Coils I

INSTALLATION

INSTRUCTIONS

Models

EBV

2-5 Ton

General Information /Installation ....... 2

Upflow Installations ................... 3

Downflow Installations ................ 3

Horizontal Installations ................ 3

Ductwork Connections ................ 4

Electrical Connections ................. 5

Diagrams ............................. 6

Transformer Information ............... 7

Refrigerant Tubing .................... 8

Refrigerant Flow Control ............... 8

Condensate Drains .................... 9

Condensate Drain Diagrams ........... 10

Start-Up Procedures .................. 11

Sequence of Operation ................ 13

Airflow Curve Charts .................. 14

Use ONLY factory listed electric heaters.

Variable Speed Fan Coils

Safety Labeling and Signal Words

Danger, Warning and Caution

The signal words DANGER, WARNING and CAU-

TION are used to identify levels of hazard seriousness.

The signal word DANGER is only used on product la-

bels to signify an immediate hazard. The signal words

WARNING and CAUTION will be used on product la-

bels and throughout this manual and other manuals that

may apply to the product.

DANGER - Immediate hazards which WILL result in

severe personal injury or death.

WARNING - Hazards or unsafe practices which

COULD result in severe personal injury or death.

CAUTION - Hazards or unsafe practices which

COULD result in minor personal injury or product or

property damage.

Signal Words in Manuals

The signal word WARNING is used throughout this

manual in the following manner:

The signal word CAUTION is used throughout this

manual in the following manner:

Product Labeling

Signal words are used in combination with colors and/or

pictures on product labels.

496 01 4113 03

June 2005

I Installation Instructions Fan Coils I

Figure 1 J Clearances& Dimensions

Unit Sizes

2400

3600

4800

6000

15-3/4"

19-1/4"

22-3/4"

11" 1_1_1_'

15-5/8"

19-1/8"

22-11/16"

22-1/16"

17-5/8"

21-1/8"

24-11/16"

CLEARANCES

NO HEATERS

All Sides ................................... 0"

From Supply Duct .......................... 0"

Recommended Service From Front .......... 20"

(Service for blower, filter if installed)

WITH HEATERS

All Sides .................................. 0"

From First Three Feet of Supply Duct to Combus-

tibles ...................................... 1"

From Duct after Three Feet ................. 0"

Recommended Service From Front .......... 20"

Fire Hazard

When heaters are installed maintain clearances

from combustible materials as specified on unit

rating plate. Do not use plastic lined or combustible

flexible ducting within 36 inches of the supply end of

the air handler.

Failure to do so can result in fire, property damage,

personal injury or death.

47-11/16"

53-7/16"

59-3/16"

General Information

Installation or repairs made by unqualified persons

can result in hazards to you and others. Installation

MUST conform with local building codes and with the

National Electrical Code NFPA70 current edition.

The information contained in this manual is intended

for use by a qualified service technician familiar with

safety procedures and equipped with the proper

tools and test instruments.

Failure to carefully read and follow all instructions in

this manual can result in equipment malfunction,

property damage, personal injury and/or death.

The blower cabinet may be used for cooling or heat pump operation with

or without electric heat. The cabinet can be installed in an upflow or

horizontal position (Figure 2, 3). EBV models are shipped with the hori-

zontal kit already installed.

Location

Select the best position which suits the installation site conditions. The

location should provide adequate structural support, space in the front of

the unit for service access, clearance for return air and supply duct con-

nections, space for refrigerant piping connections and condensate

drain line connections. If heaters are being installed make sure ade-

quate clearance is maintained from supply ductwork, (see Fig. 1).

NOTE: Internal filter can be accessed from separate filter door. If the

filter can NOT be easily accessed, a remote filter is recommended. Re-

fer to ACCA Manual D for remote filter sizing.

If the unit is located in an area of high humidity, nuisance sweating of

casing may occur. On these installations a wrap of 2" fiberglass insula-

tion with a vapor barrier is recommended.

i Fan Coils

INTRODUCTION

The EBV model is designed for flexibility and can be used for upfiow,

horizontal, or downfiow (kit required) applications. These units are avail-

able for systems of 24,000 through 60,000 Btuh nominal cooling capac-

ity. Factory authorized electric heater packages are available in sizes 5

through 30kw. See Product Specification Literature for available acces-

sory kits.

HEATER PACKAGES

A factory approved, field installed UL listed heater package is available

from your equipment supplier. See unit rating plate for a list of factory

approved heaters. Heaters that are not factory approved could cause

damage which would not be covered under the equipment warranty.

INSTALLATION

PROCEDURE 1-CHECK EQUIPMENT

Unpack unit and move to final location. Remove carton taking care not

to damage unit. Inspect equipment for damage prior to installation. File

claim with shipping company if shipment is damaged or incomplete. Lo-

cate unit rating plate which contains proper installation information.

Check rating plate to be sure unit matches job specifications.

Installation Instructions

Slope Coil Unit In Upflow Application

018-06021 IN, FRONT SERVICE

070 24-1N CLEARANCE

UPFLOW/DOWNFLOW

UP FLOW/DOWNFLOW --

SEOONDARy DRAIN

UP FLOW/DOWNFL

PRIMARY DRAIN

SUPPLY DUCT

ENTRY

OPTIONS

Unit A

2400-3600 17 in

4200-6000 19 in

½-

FIELD MODIFIED

ASIDE RETURN

LOCATION FOR

SLOPE COIL

UNITS ONLY

PROCEDURE 2- MOUNT FAN COIL

Unit can stand or lie on floor, or hang from ceiling or wall. Allow space

for wiring, piping, and servicing unit.

NOTE: To ensure proper drainage for horizontal installations, unit must

be installed so it is within 118 in. level of the length and width of unit.

A. Upflow Installation

If return air is to be ducted, install duct flush with floor. Set unit on floor

over opening. Only use return-air opening provided. All return air must

pass through the coil. (See Fig. 2.)

B. Modular Units

The EBV Fan Coil in size 6000 is a 2-piece modular unit. Modular

construction allows installer to disassemble unit into 2 components, coil

box and blower box, for ease of installation. (See Fig. 4)

To disassemble unit, remove rear corner brackets by removing 2

screws which secure brackets. (See Fig. 4) Remove either 2 screws in

each front corner of coil box, or 2 screws in blower box. Do not remove

all 4 screws in each corner. (See Fig. 4) Sections may now be separated

by lifting top section from lower section. To reassemble, reverse above

procedure. Be certain to reinstall all fasteners when reassembling.

C. Horizontal Installation

Be sure installation complies with all applicable building codes that may

require installation of secondary condensate pan.

1. Arrange support for unit by setting it in or above secondary conden

sate drain.

2. When suspending unit from ceiling, dimples in casing indicate proper

location of screws for mounting metal support straps (See Fig. 3)

UNIT or PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in property damage.

A field fabricated auxiliary drain pan, with aseperate drain is

REQUIRED for all installations over a finished living space

or in any area that may be damaged by overflow from a re-

stricted main drain pan. In some localities, local codes re-

quire an auxiliary drain pan for ANY horizontal installation.

NOTE: For optimum condensate drainage performance in hori-

zontal installations, unit should be leveled along it's length or

raised 1/4" at the air inlet. The unit should also be pitched forward

1/4" to 1/2" toward the front condensate drains.

NOTE: Modular units can be disassembled and components moved

separately to installation area for reassembly. This process accommo-

dates small scuttle holes and limiting entrances to installation sites.

D. Horizontal-Right Conversion of Units with Slope Coils

NOTE: Gasket kit number EBAC01GSK is required for horizontal slope

coil conversion to maintain low air leak/low sweat performance.

1. Remove blower and coil access panels and fitting panel. (See Fig. 5.)

2. Remove screw securing coil assembly to right side casing flange.

3. Remove coil assembly.

4. Lay fan coil on its right side and reinstall coil assembly with conden-

sate pan down. (See Fig. 5.)

5. Attach coil to casing flange using coil mounting screw previously

removed.

6. Make sure the pan cap in the fitting door is properly seated on the fit

ting door to retain the low air leak rating of the unit.

7. Add gaskets from kit EBAC01GSK per kit instructions.

6. Align holes with tubing connections and condensate pan connec-

tions, and reinstall access panels and fitting panel. Make sure liquid

and suction tube grommets are in place to prevent air leaks and

cabinet sweating. Install after brazing.

E. Horizontal Right Conversion of Units With A-Coil

1. Remove blower and coil access panel and fitting panel.(See Fig. 6).

2. Remove metal clip securing fitting panel to condensate pan. Remove

fitting panel.

3. Remove 2 snap-in clips securing A-coil in unit.

4. Slide coil and pan assembly out of unit.

5. Remove horizontal drain pan support bracket from coil support rail on

left side of unit and reinstall on coil support rail on right side of unit.

6. Convert air-seal assembly for horizontal right. (See Fig. 6).

A. Remove air-seal assembly from coil by removing 4 screws.

B Remove coil drip flanges from A-coil and reinstall on right side of

coil (same side as horizontal drain pan).

C. Remove filler plate (A) and install air splitter (B) in place of filler

plate.

I Installation Instructions Fan Coils I

D. Install filler plate (A) as shown in horizontal right application.

E. Remove condensate troughs (C) and install on opposite tube

sheets.

R install hose onto plastic spout.

7. Install horizontal pan on right side of coil assembly.

8. Slide coil assembly into casing. Be sure coil bracket on each corner

of vertical pan engages coil support rails.

9. Reinstall 2 snap-in clips to correctly position and secure coil assem-

bly in unit. Be sure clip with large offsets is used on right side of unit

to secure horizontal pan.

10. Remove 2 oval coil access panel plugs and reinstall into holes on left

side of coil access panel and fitting panel.

11. Remove insulation knockouts on right side of coil access panel

12. Reinstall access fitting panels, aligning holes with tubing connec-

tions and condensate pan connections. Be sure to reinstall metal

clip between fitting panel and vertical condensate pan.

Make sure liquid and suction tube grommets are in place to prevent air

leaks and cabinet sweating.

F. Downflow Installations

To convert units for downflow applications, refer to Installation Instruc-

tions supplied with kit for proper installation.

G. Manufactured and Mobile Home Housing Applications

1. Fan coil unit must be secured to the structure using field-supplied

hardware.

2. Allow a minimum of 24" clearance from access panels.

3. Recommended method of securing for typical applications

a. If fan coil is away from wall, attach pipe strap to top of fan coil

using No. 10 self tapping screws. Angle strap down and away

from back of fan coil, remove all slack, and fasten to wall stud of

structure using 5/16-in. lag screws. Typically both sides of fan

coil.

b. If fan coil is against wall, secure fan coil to wall stud using

1/8-in. thick right-angle brackets. Attach brackets to fan coil us

ing No. 10 self tapping screws and to wall stud using 5116-in. lag

screws. (See Fig. 9).

PROCEDURE 3-AIR DUCTS

Connect supply-air duct over the outside of 3/4-in. flanges provided on

supply-air opening. Secure duct to flange, using proper fasteners for

type of duct used, and seal duct-to-unit joint. If return-air flanges are

required, install factory authorized accessory kit.

Use flexible connectors between ductwork and unit to prevent trans-

mission of vibration. When electric heater is installed, use heat-resist-

ant material for flexible connector between ductwork and unit at

discharge connection. Ductwork passing through unconditioned space

must be insulated and covered with vapor barrier.

Ductwork Acoustical Treatment

Metal duct systems that do not have a 90 degree elbow and 10 ft. of

main duct to first branch take off may require internal acoustical insula-

tion lining. As an alternative, fibrous ductwork may be used if

constructed and installed in accordance with the latest edition of SMAC-

NA construction standard on fibrous glass ducts. Both acoustical lining

and fibrous ductwork shall comply with National Fire Protection Associa-

tion as tested by UL Standard 181 for Class 1 air ducts.

Figure3 ] Slope Coil In Horizontal Left Application

LOW VOLT

ENTRY

OPTIONS

FIELD

SUPPLIED

HANGING _

STRAPS _,_] 018-060 21-IN.

FRONT SERVICE

CLEARANCE

UNIT _ (FULL FAC i

I 6F UNIT)

I-t1_, F_/__ll FtLTERACCESS

I "_'.._.)_J.!_ CLEARANCE

DRAIN

SECONDARY

POWER DRAIN

ENTRY OPTIONS

IFan Coils

Figure 4 Removal of Brackets on Modular Units

{

EWSI

BRACKET

2SCREWS

COiL 80X

Installation Instructions J

' Ure1Conversion for Horizontal Right

Applications Using a Slope Coil

COiL MOUNTING

CONNECTIONS

BLOWER

ASSEMBLY

COIL

RAIL

SLOPE COIL,

SKI

"PRIMARY DRAIN

-OVERFLOW HOLE

' SECONDARY DRAIN

PROCEDURE 4-ELECTRICAL CONNECTIONS

On units with a factory installed disconnect with pull-out removed, ser-

vice and maintenance can be safely performed on only the load side of

the control package.

SHOCK and UNIT DAMAGE HAZARD

Failure to follow this warning could result in personal injury or

death and unit damage.

Field wires on the line side of the disconnect found in the fan

coil unit remain live, even when the pull-out is removed. Ser-

vice and maintenance to incoming wiring can not be per-

formed until the main disconnect switch (remote to the unit)

is turned off. Failure to do so will result in electrical shock

causing personal injury or death.

Before proceeding with electrical connections, make certain that supply

voltage, frequency, phase, and ampacity are as specified on the unit rat-

ing plate. See unit wiring label for proper field high- and low-voltage

wiring. Make all electrical connections in accordance with the NEC and

any local codes or ordinances that may apply. Use copper wire only. The

unit must have a separate branch electric circuit with a field-supplied

disconnect switch located within sight from and readily accessible from

the unit.

Figure 6 IApplicationsC°nversi°nfOrusingHOrizontalA_coilRight

SUPPORT

RAIL

-AIR SEAL

CONNECTIONS ASSEMBLY HORtZONTAL

RIGHT

APPLICATION

BRACKET

SUPPORT

BRACKET

COIL_

SUPPORT

RAIL

HORIZONTAL RIGHT

SECONDARY DRAIN

HORIZONTAL RIGHT

I Installation Instructions

HORIZONTAL LEFT

Fan Coils I

4" MAX

SECURE FAN COILTO STRUCTUREUNIT AWAY FROM WALL

PIPE STRAP

(TYPICAL BOTH SIDES)

UNIT AGAINST WALL

1/8-IN,THICK ANGLE

MOUNTING BRACKET

(TYPICAL BOTH SIDES)

13_ FLOW

-- BASE KIT

7(EBAC)

SECURE UNITTO FLOOR

ANGLE BRACKET OR PiPE STRAP

_I 0-;_6_;0£b(1133

VIOSS

A. Line Voltage Connections

If unit contains an electric heater, remove and discard power plug from

fan coil and connect male plug from heater to female plug from unit wir-

ing harness. (See Electric Heater Installation Instructions.)

For units without electric heat:

1. Connect 208/230v power leads from field disconnect to yellow and

black stripped leads.

2. Connect ground wire to unit ground lug.

NOTE: Units installed without electric heat should have a field-supplied

sheet metal block-off plate covering the heater opening. This will re-

duce air leakage and formation of exterior condensation.

ELECTRIC SHOCK HAZARD

Failure to follow this warning could result in personal injury

or death and unit damage.

Before installing or servicing system, always turn off all pow-

er to system. There may be more than I disconnect switch.

Turn off accessory heater power if applicable.

NOTE: Before proceeding with electrical connections, make certain that

supply voltage, frequency, and phase are as specified on unit rating

plate. Be sure that electrical service provided by the utility is sufficient

to handle the additional load imposed by this equipment. See unit wir-

ing label for proper field high- and low-voltage wiring. Make all electri-

cal connections in accordance with NEC and any local codes or

ordinances that may apply. Use copper wire only. The unit must have

a separate branch electric circuit with a field-supplied disconnect

switch located within sight from, and readily accessible from the unit.

I Fan Coils

B. 24-v Control System

CONNECTION TO UNIT

Wire low voltage in accordance with wiring label on the blower. (See Fig.

8, 10, 11, 12, 13 and 14). Use no. 18 AWG color-coded, insulated (35

C minimum) wire to make the low-voltage connections between the

thermostat, the unit, and the outdoor equipment. If the thermostat is lo-

cated more than 100 ft. from the unit (as measured along the low-volt-

age wire), use No. 16 AWG color-coded, insulated (35 C minimum)

wire. All wiring must be NEC Class 1 and must be separated from in-

coming power leads. Refer to outdoor unit wiring instructions for any

additional wiring procedure recommendations.

TRANSFORMER INFORMATION

Transformer is factory-wired for 230v operation. For 208v applications,

disconnect the black wire from the 230v terminal on transformer and

connect it to the 208v terminal. (See Fig. 14).

HEATER STAGING

The controls are factory circuited for single-stage operation. When 2

or 3 stages are desired, remove J2 (Jumper-2) from the control board.

(See Fig. 13).

Figure 10 IWiring Layout A/C Unit, No Heat

Thermostat Cooling Only

G--

©©

W 2 W 1 GY O H

IndoorBlower

Outdoor Unit

Air Conditioner - Adding Control for 80% Airflow

O©O O OO

W2 W 1 G Y O H C R

IndoorBlower

Dehumidistat or Outdoor Thermostat

Installation Instructions

(Cooling and 1-Stage Heat)

Thermostat

_. Y

t_Hf_r I Inif

Air Conditioner - Adding Control for 80% Airflow

©^_2_ © © © O R

W2W 1 GY O H C

Indoor Blower

Dehumidistat or Outdoor Thermostat

(Cooling and 2-Stage Heat)

Electric Heat Staging

Thermostat

*J2 Removed

Air Conditioner - Adding Control for 80% Airflow

O O G l> O O O O

W 2 W 1 G Y O H C R

Indnnr Blnw_r

Dehumidistat or Outdoor Thermostat

*J2 Removed

I Installation Instructions

C. Ground Connections

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in electric shock,

fire, or death.

According to NEC, ANSI/NFPA 70, and local codes, the cabinet

must have an uninterrupted or unbroken ground to minimize

personal injury if an electrical fault should occur. The ground

may consist of electrical wire or metal conduit when installed

in accordance with existing electrical codes. If conduit con-

nection uses reducing washers, a separate ground wire must

be used.

NOTE: Use UL-listed conduit and conduit connector for connecting

supply wire(s) to unit to obtain proper grounding. Grounding may also

be accomplished by using grounding lugs provided in control box.

D. Fan Control Board Jumper Instructions

The fan control board (see Fig. 8) has two jumpers. Jumper 1 (JP1)

jumpers two of three pins. The control unit should be factory set to the

VS (variable speed) position and should be left in this position in most

cases.

If there is a motor or control failure, and a variable speed replacement is

not readily available, it may be necessary to use a PSC motor until the

proper part can be ordered. This "limp mode" can be accessed by

moving JP 1 to the PSC pins. In this position a PSC motor can replace the

VS motor.

Jumper 2 (J2) is used to stage electric heaters. When in place, J2 ties

Wl and W2 together which should be used for single stage heat. When

J2 is removed, it allows Wl and W2 to be controlled separately and is for

applications using two stage electric heating.

MotorSpeedsand Airflow

See Figure 15

The motor speed can be set on one of eight speeds and the air flow will

adjust between 60%, 80% and 100% depending on settings. Time ON /

OFF settings can also be adjusted.

Determine coil static pressure drop, consult coil manual and measure

duct system static pressure, then determine required speed setting

from blower charts.

For Cooling/HP Heating - Set switches 6, 7, and 8 on the motor control

to position 0 (off) or 1 (on) as specified on blower charts.

For Electric Heating - Set switches 3, 4, and 5 on the motor control to

position 0 (off) or 1 (on) as specified on blower charts.

Fan Coils I

Set switches 1 and 2 to position 0 (off) or 1 (on) as specified in Figure 12

to control Fan delay ON - OFF.

NOTE: Power must be completely OFF to unit any time switch

settings are changed or settings will not take effect.

Adding Humidistator OutdoorThermostat

Adding a humidistat or outdoor thermostat allows the airflow to be

reduced to 80% of normal allowing greater humidity control.

Humidistats are preferred but an outdoor thermostat can be used but

can only be set based on temperature. Suggested starting point is 85 F,

but this will vary depending on several factors.

The control must be wired differently on air conditioners and heat

pumps. On air conditioners connect to Y and Dehum terminals H, (see

Figure 10).

HEAT PUMPS ONLY: Heat pumps must use only the outdoor

thermostat, because it is powered instead of just performing a switching

function. This allows it to be out of the circuit when continuous

circulation is desired, which is required for the system to operate on Fan

Only for circulation, which is 60% airflow. On heat pumps connect to Y

and Dehum terminals H, and C and O to power the outdoor thermostat

(see Figure 12).

NOTE: The outdoor thermostat is not used for this application and if W

and H are energized at the same time, the unit will not run. The powered

outdoor thermostat only allows H to be energized when the system is

in the cooling mode.

PROCEDURE 5-REFRIGERANT TUBING AND FLOW CONTROL

Field-supplied tubing must be of refrigerant grade. Suction tube must

be insulated. Do not use damaged, dirty, or contaminated tubing be-

cause it may plug refrigerant flow-control device. ALWAYS evacuate

the coil and field-supplied tubing to 500 microns before opening out-

door unit service valves.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in unit damage.

Braze with SiI-Fos or Phos-copper on copper to copper joints

and wrap a wet cloth around rear of fitting to prevent damage

to TXV.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in unit damage.

If using an EBV model with field installed TXV in conjunc-

tion with a single-phase reciprocating compressor, a com-

pressor hard start kit is required.

IFan Coils

_u,e W,.n_.a_outHeatPu_,.o.oat

Installation Instructions J

Heat Pump

Staging

Thermostat

Heat Pump Only

--R

W 2 W 1 G Y O HCR

IndoorBlower

Outdoor Unit

Heat Pump - Adding Control for 80% Airflow

W2W 1 G Y O H C

IndoorBlower

Outdoor Thermostat

I InstallationInstructions FanCoils I

Figure !3 Typical Low Voltage Control Schematic For Heat Pumps

Heat Pump with 1-Stage Electric Heat ElectricHeat Heat Pump with 2-Stage Electric Heat

Heat Pump Staging Thermostat

Heat Pump

Staging Thermostat

lW W 1 G Y O H

Indoor Blower

Outdoor Unit

C R

Heat Pump - Adding Control for 80% Airflow

W 1

W2 m

G Y O H C

indoorBlower

)

Outdoor Unit

*J2 Removed

Heat Pump - Adding Control for 80% Airflow

Outdoor Thermostat

0©000000

W2W1G Y O H C R

Indoor Blower

Outdoor Thermostat

O000oo()o

W2W1G Y O H C R

Indoor Blower

* J2 Removed

llj2J

Installation Instructions JI Fan Coils

,gure,, 1 Transformer Connections

RED

BLK

Heat Cool

Time CFM CFM

Delay Select Select Select

1 2 3 4567

1 Positions (on)

8 0 Switch (off)

Time Delays:

(0,0) = 30 Seconds

(0,1) = 60 Seconds

(1,0) = 90 Seconds (factory setting)

(1,1) = 0 Seconds

PROCEDURE 6-CONDENSATE DRAINS

Units are equipped with primary and secondary 3/4-in. FPT drain con-

nections. For proper condensate line installations see Fig. 2, 3, 5, 6 and

7. To prevent property damage and achieve optimum drainage perfor-

mance, BOTH primary and secondary drain lines should be installed

and include properly-sized condensate traps. (See Fig. 17). Factory-

approved condensate traps are available (Kit No. EBAC01CTK1). Be

sure to install plastic push-in plugs in unused condensate drain fittings.

It is recommended that PVC fittings be used on the plastic condensate

pan. Finger-tighten plus 1-1/2 turns. Do not over-tighten. Use pipe

dope.

UNIT or PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in property damage

Shallow, running traps are inadequate and DO NOT allow prop-

er condensate drainage. (See Fig. 18).

When connecting condensate drain lines, avoid blocking filter ac-

cess panel, thus preventing filter removal. After connection, prime

both primary and secondary condensate traps.

NOTE: When connecting condensate drain lines, avoid blocking filter

access panel, thus preventing filter removal. After connection, prime

both primary and secondary condensate traps.

NOTE: If unit is located in or above a living space where damage may

result from condensate overflow, afield-supplied, external condensate

I Installation Instructions

pan should be installed underneath the entire unit, and a secondary

condensate line (with appropriate trap) should be run from the unit into

the pan. Any condensate in this external condensate pan should be

drained to a noticeable place. As an alternative to using an external con-

densate pan, some localities may allow the use of a separate 3/4-in.

condensate line (with appropriate trap) to a place where the condensate

will be noticeable. The owner of the structure must be informed that

when condensate flows from the secondary drain or external conden-

sate pan, the unit requires servicing or water damage will occur.

Fan Coils I

Recommended Condensate Trap

UNIT

2" MIN

Installation Instructions !I Fan Coils

I 1

Figure 18 Insufficient Condensate Trap

DO NOT USE SHALLOW RUNNING TRAPS[

PRIMARYTRAP REQUIRED_

(USE FACTORYKIT OR

FIELD-SUPPMEDTRAP OF

SUFFICIENTDEPTH.

STANDARDPRIMARYTRAPS

ARE NOT SUFFICIENT.SEE

RGUREOFRECOMMENEDI_

CONDENSATETRAP)

/ACCESS

PANEL

SECONDARY DRAIN REQUIRED

(USE FACTORY KITOR

FIELD*SUPPLIEDTRAP)

Install traps in the condensate lines as close to the coil as possible. (See Fig. 19). Make sure that the outlet of each trap is below it connection to

the condensate pan to prevent condensate from overflowing the drain pan. Prime all traps, test for leaks, and insulate traps if located above a living

area. Condensate drain lines should be pitched downward at a minimum slope of 1 in. for every 10 ft of length. Consult local codes for additional

restrictions or precautions.

PROCEDURE 7-SEQUENCE OF OPERATION

A. Continuous Fan

Thermostat closes R to G. G energizes fan relay on electronic fan board

which completes circuit to indoor blower motor. When G is de-ener-

gized, there is a 90 sec delay before relay opens.

B. Cooling Mode

Thermostat energizes R to G, R to Y, and R to O (heat pump only). G

energizes fan relay on electronic fan board which completes circuit to

indoor blower motor. When G is de-energized, there is a 90 sec delay

before fan relay opens.

C. Heat Pump Heating Mode

Thermostat energizes R to G and R to Y. G energizes fan relay on elec-

tronic fan board which completes circuit to indoor blower motor. When

G is de-energized, there is a 90 sec delay before fan relay opens.

D. Heat Pump Heating with Auxiliary Electric Heat

Thermostat energizes R to G, R to Y, and R to W. G energizes fan relay

on electronic fan board which completes circuit to indoor blower motor.

W energizes electric heat relay(s) which completes circuit to heater ele-

ment(s). When W is de-energized, electric heat relay(s) open, turning

off heater elements. When G is de-energized there is a 90 sec delay be-

fore fan relay opens.

E. Electric Heat or Emergency Heat Mode

Thermostat closes R to W. W energizes electric heat relay(s) which

completes circuit to heater element(s). Blower motor is energized

through normally closed contacts on fan relay. When W is de-ener-

gized, electric heat relay(s) opens.

START-UP PROCEDURES

Refer to outdoor unit installation instructions for system start-up in-

structions and refrigerant charging method details.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in poor unit operation,

performance or unit damage.

Never operate unit without a filter. Damage to blower motor

or coil may result. Factory authorized filter kits must be used

when locating the filter inside the unit. For those applications

where access to an internal filter is impractical, a field-sup-

plied filter must be installed in the return duct system.

CARE AND MAINTENANCE

To continue high performance and minimize possible equipment failure,

it is essential that periodic maintenance be performed on this equip-

ment. Consult your local dealer as to the proper frequency of mainte-

nance contract. The ability to properly perform maintenance on this

equipment requires certain mechanical skills and tools. If you do not

possess these, contact your dealer for maintenance. The only con-

sumer service recommended or required if filter replacement or clean-

ing on a monthly basis.

I Installation Instructions Fan Coils I

Airflow Curves

EBV2400B

1200

1100 _ "_"

_ _ _'_ 000

1000 _ _ _ __ _ _ r_t

900 -_ _ _

_ _ olo

8OO

_ _ 011

700 "'--,.,,

600 _'_ _ _"'_ _

500 _ _ _ _ 1oo

101

400

300 111

200

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

External Static Pressure

1600

1400

1200

1000

800

EBV3600B

600

400

0.1

_000

---.......

O0q

--_ "_"_ _"_.-_ _ 010

_ "_'_-_ _ o11

_ 1oi

_ 110

111

0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

ExternalStatic Pressure

EBV4800B

_ 001

___. _ _ _ _._ _ 010

_._ 011

_ _ IO0

__ _ _ _ _""_- 101

__._._ _ 110

111

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

External Static Pressure

EBV6000B

_ _ 001

_ _._ .._ Ol_

_ _ _ lC

_ _110

"_ 11'

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

ExternalStaticPressure

U#J

ICP Evaporator Coils Manual LR708241

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