ICP FSM4X6000AT User Manual FAN COILS Manuals And Guides 1209239L

User Manual: ICP FSM4X6000AT FSM4X6000AT ICP FAN COILS - Manuals and Guides View the owners manual for your ICP FAN COILS #FSM4X6000AT. Home:Heating & Cooling Parts:Icp Parts:Icp FAN COILS Manual

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These instructions must be read and understood completely before attempting installation.

Safety Labeling and Signal Words

DANGER, WARNING, CAUTION, and

NOTE

The signal words DANGER, WARNING,

CAUTION, and NOTE are used to identify levels of

hazard seriousness. The signal word DANGER is

only used on product labels to signify an immediate

hazard. The signal words WARNING, CAUTION,

and NOTE will be used on product labels 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

may result in minor personal injury or product or

property damage.

NOTE - Used to highlight suggestions which will

result in enhanced installation, reliability, or

operation.

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:

Signal Words on Product Labeling

Signal words are used in combination with colors

and/or pictures on product labels.

TABLE OF CONTENTS

Introduction .................................... 2

Location ....................................... 2

Clearances and Dimensions ..................... 3

Heater Packages ............................... 4

Position Unit ................................ 4 - 8

Air Ducts ...................................... 9

Electrical Connections ...................... 9 - 13

Refrigerant Tubing ............................. 14

Refrigerant Metering Device .................... 14

Condensate Drains ............................ 15

Accessories .................................. 16

Sequence of Operation ......................... 17

Start-up Procedure ............................ 17

Care and Maintenance ......................... 17

Airflow Performance ....................... 18 - 21

R-410A Quick Reference Guide ................. 22

PERSONAL INJURY, AND/OR PROPERTY DAMAGE

HAZARD

Failure to carefully read and follow this warning could

result in equipment malfunction, property damage,

personal injury and/or death.

Installation or repairs made by unqualified persons

could result in equipment malfunction, property dam-

age, personal injury and/or death.

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.

Installation must conform with local building codes

and with the National Electrical Code NFPA70 current

edition.

496 01 5402 02 April 2011

INTRODUCTION

Models FEM4X, FSM4X, and FXM4X are designed for

maximum flexibility and can be used for upflow, horizontal left

or right, and downflow applications (accessory kit required

for downflow or horizontal right).

Model FSU4X is designed for upflow installation, and can be

field modified for downflow and horizontal left or right

applications (accessory kits required for downflow or

horizontal).

FEM4X and FXM4X models are available for system sizes

1-1/2 - 5 tons (18,000 - 60,000 BTUH) nominal cooling

capacity.

FSM4X, and FSU4X models are available for system size 5

ton (60,000 BTUH) nominal cooling capacity.

FEM4X and FXM4X models use an ECM motor and have a

factory installed and appropriately sized hard shut-off TXV

metering device and are for R-410A refrigerant ONLY.

FSM4X and FSU4X models use a PSC motor and have a

factory installed and appropriately sized hard shut-off TXV

metering device and are for R-410A refrigerant ONLY.

Factory approved electric heater packages are available in

sizes 3kW through 30kW. See Product Specification

literature for available accessory kits.

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 connections, space

for refrigerant piping connections and condensate drain line

connections. If heaters are being installed make sure

adequate clearance is maintained from supply duct work.

See Clearances in Figure 1.

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

sweating of casing may occur. On these installations a wrap of

2" (51mm) fiberglass insulation with a vapor barrier is

recommended.

NOTE: Internal filter can be accessed from separate filter

door. If the filter can NOT be easily accessed, a remote filter

is recommended. Refer to ACCA Manual D for remote filter

sizing.

FIRE HAZARD

Failure to maintain proper clearances could result in per-

sonal injury, death, and/or property damage.

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 (lm) of the supply end of the fan coil.

2 496 01 5402 02

1 / ClearancesandUnitDimensions

Figure

OPENING)

L N_/J (SERVICE ACCESS)

( OPENI 38-11-82

iiii_i_i_iiii_`_i_`iiiiiiiiiiiiiiiiiiiiiiiiiiiii_`_ii__i_i_i!_i_jji!_i_i_i_i!_ii_101

No All Sides 0

Heaters From Supply Duct 0

All Sides 0

With From First 3 feet of Supply Duct to Combustibles 1

Heaters From Supply Duct to Combustibles after 3 feet 0

Model A B C D E F G H

1800 12-7/16 11 19-13/16 12-5/16 22-1/16 14-5/16 21 42-11/16

2400 15-3/4 11 19-13/16 15-5/8 22-1/16 17-5/8 21 47-5/8

3000 15-3/4 11 19-13/16 15-5/8 22-1/16 17-5/8 21 49-5/8

3500 19-1/4 11 19-13/16 19-1/8 22-1/16 21-1/8 21 53-7/16

3600 19-1/4 11 19-13/16 19-1/8 22-1/16 21-1/8 21 49-5/8

4200 19-1/4 11 19-13/16 19-1/8 22-1/16 21-1/8 21 49-5/8

4800 19-1/4 11 19-13/16 19-1/8 22-1/16 21-1/8 21 53-7/16

6000 19-1/4 11 19-13/16 19-1/8 22-1/16 21-1/8 21 53-7/16

Model A B C o I E F GI H

6000 22-3/4 11 19-13/16 22-11/16 I 22-1/8 24-11/16 24 59-3/16

m.... :

Model A B C D E F G H

1800 15-3/4 11 19-13/16 15-5/8 22-1/16 17-5/8 21 49-5/8

2400 15-3/4 11 19-13/16 15-5/8 22-1/16 17-5/8 21 49-5/8

3000 19-1/4 11 19-13/16 19-1/8 22-1/16 21-1/8 21 53-7/16

3600 19-1/4 11 19-13/16 19-1/8 22-1/16 21-1/8 21 49-5/8

4200 19-1/4 11 19-13/16 19-1/8 22-1/16 21-1/8 21 49-5/8

4800 22-3/4 11 19-13/16 22-11/16 22-1/16 24-11/16 24 53-7/16

6000 22-3/4 11 19-13/16 22-11/16 22-1/16 24-11/16 24 59-3/16

Model A B C D E F G H

1800 316 279 503 313 560 364 533 1084

2400 400 279 503 397 560 448 533 1210

3000 400 279 503 397 560 448 533 1261

3500 489 279 503 486 560 537 533 1357

3600 489 279 503 486 560 537 533 1261

4200 489 279 503 486 560 537 533 1261

4800 489 279 503 486 560 537 610 1357

6000 489 279 503 489 560 537 533 1357

....

6000 578 279 503 576 562 627

i iiliiliiliiliiiii........ :!!!!!!!:!!!!!!!!!!!!!!!!!

Model A B C D E F G H

1800 400 279 503 397 560 448 533 1261

2400 400 279 503 397 560 448 533 1261

3000 489 279 503 486 560 537 533 1357

3600 489 279 503 486 560 537 533 1261

4200 489 279 503 486 560 537 533 1261

4800 578 279 503 576 560 627 610 1357

6000 578 279 503 576 560 627 610 1503

496 01 5402 02 3

HEATER PACKAG ES

Factory approved, field installed, UL listed heater packages not factory approved could cause damage which would not

are available from the equipment supplier. See unit rating be covered under the equipment warranty.

plate for a list of factory approved heaters. Heaters that are

POSITION UNIT

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

Allow space for wiring, piping, and servicing unit.

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in property

damage

Afield fabricated auxiliary drain pan, with a separate

drain is REQUIRED for all installations over a fin-

ished living space or in any area that may be damaged

by overflow from a restricted main drain pan. In some

localities, local codes require an auxiliary drain pan

for ANY horizontal installation.

A. UPFLOW INSTALLATION

If return air is to be ducted through a floor, set unit on floor

over opening and use 1/8 to 1/4 inch thick (3 to 6 mm thick)

fireproof resilient gasket between duct, unit, and floor.

Side return is a field option on slope coil models. Cut opening

per dimensions shown in Figure 2. A field-supplied bottom

closure is required.

Figure 2 1

POWER

OPTIONS

Upflow Installation

SUPPLIED

SUPPLY DUCT

FRONT SERVICE CLEARANCE

60 model = 24" (610 mm)

UPFLOW/_

U:;_W _DARY DRA'NI_/DOWNFLOW__L_ _

PRIMA_

UPFLOW/DOWN FLOW

SECONDARY DRAIN _1

UPFLOW/DOWN FLOW _"

PRIMARY DRAIN

VO LT

ENTRY

OPTIONS

(483mm)

II FIELD MODIFIED

II A SIDERETURN

!1 2-1/2" I LOCATIONFOR

SLOPE COIL

i_ UNITS ONLY

_ FIELD SUPPLIED

RETURN PLENUM

SLOPE COIL UNITS

FEM4X

MODEL SIZE

12" (305mm)

17" (432mm)

19" (483mm)

SLOPE COIL UNITS

FXM4X

MODEL SIZE A

18 17" (432mm)

24 17" (432mm)

30 19" (483mm)

4 496 01 5402 02

B.DOWNFLOWINSTALLATION

PRODUCTORPROPERTYDAMAGEHAZARD

Failureto followthis cautionmayresultin productor

propertydamage

Theconversionof thefan coil to downflow requires

special procedures for the condensate drains on both

A-coil and Slope-coil units. The vertical drains have

an overflow hole between the primary and secondary

drain holes. This hole is plugged for all applications

except downflow, and must be used for downflow.

Failure to follow instructions could result in personal

injury or product and property damage.

In this application, field conversion of the evaporator coil is

required using accessory Downflow Kit along with an

accessory Base Kit. Set unit on floor over opening and use

1/8"to 1/4"thick fireproof resilient gasket between duct, unit,

and floor. Refer to installation instructions packaged with

accessory kit. See Product Specification literature for kit part

numbers.

During the conversion process, removed the plastic cap

covering the vertical drains only and discard.

Remove the plug from the overflow hole and discard.

At completion of the downflow installation, caulk around the

vertical pan fitting to door joint to retain low air leak

performance of the unit.

NOTE: Gasket kit number (EBAC01GSK) is also required for

all downflow applications to maintain low air leak/low sweat

performance.

C. HORIZONTAL INSTALLATION

Unit must NOT be installed with access panels facing up or

down. Access panels must only face to the side.

FEM4X, FSM4X, and FXM4X models are factory built for

horizontal left installation (refer to Figure 3 and Figure 4).

They can be field converted to horizontal right (accessory

Gasket Kit required, see Product Specification literature for

part number). Refer to Figure 5 and Figure 6.

FSU4X models require accessory kits for any horizontal

installation (see Product Specification literature for required

accessory kits).

NOTE: When suspending unit from ceiling, dimples in casing

indicate suitable location of screws for mounting metal

support straps.

NOTE: For optimum condensate drainage performance in

horizontal installations, unit should be leveled along its length

and width.

Figure 3 Horizontal Left Application (Slope Coil) (FXM4X factory configuration)

A-COIL

HORIZONTAL LEFT

FIELD

SUPPLIED

HANGING

STRAPS SECONDARY PRIMARY

DRAIN DRAIN

LOW VOLT

ENTRY

OPTIONS

POWER

ENTRY

OPTIONS

SECONDARY

DRAIN

PRIMARY

DRAIN

FRONT SERVICE CLEARANCE

(FULL FACE OF UNIT)

18 - 48 models = 21" (533mm)

60 model = 24" (610mm)

1-3/4"(45!_m)

FILTER ACCESS

CLEARANCE

496 01 5402 02 5

Figure4 J HorizontalLeftApplication(A-Coil)(FEM4X,FSM4X,and FXM4Xfactoryconfiguration)

FACTORY SHIPPED

HORIZONTAL LEFT

APPLICATION

COIL

SUPPORT

RAI L

DRAIN PAN

SUPPORT

BRACKET

COIL

HORIZONTAL

DRAIN PAN

AIR SEAL

ASSEMBLY

REFRIGERANT

CONNECTIONS

PRIMARY DRAIN

HORIZONTAL LEFT

SECONDARY DRAIN

HORIZONTALLEFT

Horizontal Right Conversion of Units With Slope Coils

1. Remove blower and coil access panel and fitting panel

(refer to Figure 5).

2. Remove coil mounting screw securing coil assembly

to right side casing flange.

3. Remove coil assembly.

4. Lay fan coil unit on its right side and reinstall coil assembly

with condensate pan down (refer to Figure 5).

Attach coil to casing flange using coil mounting screw

previously removed.

Align holes with tubing connections and condensate

pan connections, and reinstall access panels and

fitting panel. After brazing, make sure liquid and

suction tube grommets are in place to prevent air

leaks and cabinet sweating.

Figure 5 JHorizontal Right Conversion Applications (Slope Coil) (FXM4X)

COIL MOUNTING BLOWER

ASSEMBLY

COIL SUPPORT RAIL

SLOPE

REFRIGERANT

CONNECTIONS

SECONDARY DRAIN

6 496 01 5402 02

HorizontalRightConversionof UnitsWithA-Coils

1. Remove blower and coil access panel and fitting panel

(refer to Figure 6).

2. Remove coil mounting screw securing coil assembly

to right side casing flange.

3. Remove coil assembly.

4. Lay fan coil unit on its right side and reinstall coil

assembly with condensate pan down (refer to

Figure 6).

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 (refer to

Figure 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.

Install filler plate (A) as shown in horizontal right

application.

Remove condensate troughs (C) and install on

opposite tube sheets.

Install hose onto plastic spout.

Install horizontal pan on right side of coil assembly.

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 assembly 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 connections and condensate pan connections.

Be sure to reinstall metal clip between fitting panel and

vertical condensate pan.

13. After brazing, make sure liquid and suction tube

grommets are in place to prevent air leaks and cabinet

sweating.

Figure 6 Horizontal Right Conversion Applications (A-Coil)

SUPPORT

RAI L

CONNECTIONS ASSEMBLY HORIZONTAL

RIGHT

APPLICATION

BRACKET

DRAIN

SUPPORT

BRACKET

COIL_

SUPPORT "

RAI L

BRACKET

HORIZONTAL

DRAIN PAN

HORIZONTAL RIGHT

SECONDARY DRAIN

HORIZONTAL RIGHT

496 01 5402 02 7

D. MANUFACTUREDHOUSINGAND MOBILEHOME

APPLICATIONS

Fan coil unit must be secured to the structure using

field-supplied hardware.

Allow a minimum of 24 inches (610mm) clearance

from access panels.

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" lag screws. Typical both sides of fan coil.

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

using 1/8" (3mm) wide right-angle brackets. Attach

brackets to fan coil using No. 10 self tapping screws

and to wall stud using 5/16" lag screws (refer to

Figure 7).

Mobile Home or Manufactured Hous-

Figure 7 ing Applications

4" (102mm) MAX

SECURE FAN COIL TO STRUCTURE

UNIT AWAY FROM WALL

PIPE STRAP

_°1 (TYPICAL BOTH SIDES)

!_ UNIT AGAINST WALL

1/8" (3mm) INCH THICK ANGLE

MOUNTING BRACKET

(TYPICAL BOTH SIDES)

.----....__.._

1////7 DOWN FLOW

BASE KIT

_J_ SECURE UNIT TO FLOOR

p/ ANGLE BRACKET OR PIPE STRAP

4" (102mm) MAX

NOTE: Modular units can be disassembled and

components moved separately to installation area

for reassembly. This process accommodates small

scuttle holes and limiting entrances to installation

sites (refer to Figure 8).

Removal of Brackets on

Figure 8 Modular Units

BLOWER BOX

--4 c

BRACKET _ °

2 SCREWS

COIL BOX

8 496 01 5402 02

AIR DUCTS

Connect supply-air duct over the outside of 3/4" flanges

provided on supply-air opening. Secure duct to flange using

proper fasteners for type of duct used, and seal duct-to-unit

joint.

Use flexible connectors between duct work and unit to

prevent transmission of vibration. When electric heater is

installed, use heat-resistant material for flexible connector

between duct work and unit at discharge connection. Duct

work passing through unconditioned space must be

insulated and covered with vapor barrier.

ELECTRICAL CONNECTIONS

Duct work Acoustical Treatment

Metal duct systems that do not have a 90 degree elbow and

10 feet of main duct before first branch takeoff may require

internal acoustical insulation lining. As an alternative, fibrous

duct work may be used if constructed and installed in

accordance with the latest edition of SMACNA construction

standard on fibrous glass ducts. Both acoustical lining and

fibrous duct work shall comply with National Fire Protection

Association as tested by UL Standard 181 for Class 1 air

ducts.

FEM4X (1-1/2 to 4 ton), FSM4X and FSU4X Fan Coil

models utilize an electronic fan board which has a low voltage

circuit protective fuse (5 amp), fan motor speed tap terminal

(SPT), and time-delay relay (TDR). To disable the TDR

feature, snip the jumper wire JWl (refer to Figure 9).

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.

FEM4X (5ton) and FXM4X Fan Coil models have a low voltage

circuit protective fuse (3 amp) inline on the wire harness. Speed

selections are made at the fan motor by selecting taps 1,2, or 3

with the Blue wire. The motor is pre-programmed with the

time-delay circuit on some of the speed taps. (See Section D)

NOTE: When a pull-out type disconnect is removed from the

unit, only the Load side of the circuit is de-energized. The

Line side remains live until the main (remote) disconnect is

turned off.

Before proceeding with electrical connections, make certain

that supply voltage, frequency, phase, and circuit ampacity are

as specified on the unit rating plate. See unit wiring label for

proper field high and low voltage wiring.

ELECTRICAL SHOCK or UNIT DAMAGE HAZARD

Failure to follow this warning could result in personal

injury, death, and/or unit damage.

If a disconnect switch is to be mounted on unit, select

a location where drill and fasteners will not contact

electrical or refrigeration components.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

Turn off the main (remote) disconnect device before

working on incoming (field) wiring.

Incoming (field) wires on the line side of the discon-

nect found in the fan coil unit remain live, even when

the pull-out is removed. Service and maintenance to

incoming (field) wiring cannot be performed until the

main disconnect switch (remote to the unit) is turned

off.

Figure 9 1

FSM4X, FSU4X

Fan Coil Printed Circuit Board

RiO

HK61EA010

:_ i) T C (} N

496 01 5402 02 9

A. LINE VOLTAGE CONNECTIONS

Fan Coils installed without electric heat require the use of a

factory-authorized Power Plug Kit (accessory part number

EBAC01PLG). This kit provides the electrical connections

necessary to supply the unit with 208/230V power when

electric heat is not present. For units without electric heat:

1. Connect 208/230V power leads from field disconnect

to yellow and black stripped leads on Power Plug

(accessory part number EBAC01PLG).

2. Connect ground wire to unit ground lug.

3. When installing an electric heater, remove and discard

power plug (if equipped) from fan coil and connect

male plug from heater to female plug from unit wiring

harness. (See Electric Heater Installation

Instructions.)

B. 24V CONTROL SYSTEM

Connection to Unit

Wire low voltage in accordance with wiring label on the

blower (also refer to Figure 10 through Figure 14). Use 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 located

more than 100 feet from the unit (as measured along the low

voltage wire), use 16 AWG color-coded, insulated (35°C

minimum) wire. All wiring must be NEC Class 1 and must be

separated from incoming power leads. Refer to outdoor unit

wiring instructions for additional wiring recommendations.

Heater Staging

The controls are factory circuited for single-stage operation

(refer to Figure 11 and Figure 12). When 2 stages are

desired, cut W3 at the W2 wire nut, strip, and reconnect

according to the thermostat kit instruction (refer to Figure 13

- outdoor thermostat optional). When 3 stages are desired,

cut the W2 wire nut off and discard. Strip W2, W3, and E, and

reconnect according to the thermostat kit instructions (refer

to Figure 14 outdoor thermostats optional).

UNIT OPERATION HAZARD

Failure to follow this caution may result in improper

product operation.

If W2, W3, and E on any 3 stage heater (18, 20, 24, or

30kW) are individually connected - as with outdoor

thermostats or any other situation - emergency heat

relay must be used. If relay is not used, blower may

not operate when heaters are energized.

10 496 01 5402 02

10 | Wiring Layout -Air Conditioning

Figure IUnit (Cooling Only)

THERMOSTAT

(9-

RED

GRY

WHT

BLU

VlO

BRN

FANCOIL

WIRING

AIR COND.

J Wiring Layout -Air Conditioning

Figure 11 Unit (Cooling and 1-Stage Heat)

THERMOSTAT

FANCOIL

WIRING

RED

GRY

WHT

BLU

VIO

BRN

AIR COND.

Figure 12 Wiring Layout -Heat Pump Unit

(Cooling and 1-Stage Heat with No

Outdoor Thermostat)

THERMOSTAT FANCOIL HEAT PUMP

WIRING (CONTROL)

RED ; . ,

GRY /

BRN !

_ WriT /

BLU .

Vl°l'

Figure 13 Wiring Layout -Heat Pump Unit

(Cooling and 2-Stage Heat with

One Outdoor Thermostat)

THERMOSTAT

RED

GRY

BRN

WHT

BLU

VlO

FANCOIL HEAT PUMP

WIRING (CONTROL)

Wiring Layout -Heat Pump Unit

Figure 14 (Cooling and 2-Stage Heat with

Two Outdoor Thermostats)

THERMOSTAT

RED

GRY

BRN

WHT

BLU

VlO

FANCOIL HEAT PUMP

WIRING (CONTROL)

496 01 5402 02 11

TransformerInformation

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 (refer to

Figure 15).

Figure 15 JTransformer Connections

BROWN

RED

YELLOW

BLACK

C. GROUND CONNECTIONS

PRIMARY

ELECTRICAL SHOCK HAZARD

Failure to establish uninterrupted or unbroken

ground could result in personal injury and/or death.

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

the cabinet must have an uninterrupted or unbroken

ground in order to minimize potential for personal in-

jury or death 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 connection uses reducing washers,

a separate ground wire must be used.

FEM4X (5 ton) and FXM4X models: fan speed is selected

at the motor connector. Units with or without electric heaters

require a minimum CFM. Refer to the unit wiring label to

ensure that the fan speed selected is not lower than the

minimum fan speed indicated.

Tap 1 Low 90 sec off delay

Tap 2 Medium 90 sec off delay

Tap 3 High 90 sec off delay

Tap 4 Electric Heat t 0 sec off delay

Tap 5 Max $ 0 sec off delay

t Electric heat airflow is same CFM as Tap 3, but with 0

sec off delay.

For high static applications, see Airflow Performance

Tables for max airflow.

To change motor speeds disconnect the BLUE fan lead from

motor connector terminal #2 (factory default position) and

move to desired speed-tap; 1,2, 3, or 5.

Speed-taps 1, 2, and 3 have a 90 second blower off time

delay pre-programmed into the motor. Speed tap 4 is used

for electric heat only (with 0 second blower time delay) and

the WHITE wire should remain on tap 4. Speed-tap 5 is used

for high static applications, but has a 0 second blower time

delay pre-programmed into the motor (see Airflow

Performance Tables for actual CFM for each tap). Also, see

Figure 16 for motor speed selection location.

NOTE: In low static applications, lower motor speed tap should

be used to reduce possibility of water being blown off coil.

NOTE: Use UL listed conduit and conduit connectors 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. MINIMUM CFM AND MOTOR SPEED SELECTION

Units with or without electric heaters require a minimum CFM.

Refer to the unit wiring label to ensure that the fan speed

selected is not lower than the minimum fan speed indicated.

FEM4X models (1-1/2 to 4 ton): fan speed selection is done at

the fan motor. To change motor speeds, reposition wire at fan

motor speed terminals labeled 1-2-3 (refer to Figure 16).

FSM4X and FSU4X models: fan speed selection is done at

the fan relay on the electronic fan board. To change motor

speeds, disconnect fan lead used on relay terminal (SPT) and

replace with motor speed lead desired (refer to Figure 17).

Save insulating cap and place on motor lead removed from

relay.

NOTE: In low static applications, lower motor speed tap should

be used to reduce possibility of water being blown off coil.

All units have 2 or 3 motor speed taps. Low speed (red or 1) is

designed for mismatch outdoor unit applications. Medium

speed (blue or 2) is designed for straight matched

operations. High speed (black or 3) is used with high external

static duct situations on straight matched systems.

12 496 01 5402 02

16 | FEM4X and FXM4X Motor Speed

Figure ISelection

L11S018

Figure 17 FSM4X, FSU4X Fan Coil Relay and

Speed Tap Terminal

SPEED TAP _

COMMON YELLOW

/J_'_--FAN DECK

496 01 5402 02 13

REFRIGERANT TUBING

Size and install refrigerant lines according to information

provided with outdoor unit. Route refrigerant lines to the fan

coil in a manner that will not obstruct service access to the

unit or removal of the filter.

1. Find the liquid tube grommet in the small-parts bag

and slide it onto the liquid refrigerant line (field

line-set).

2. Remove the lower door. Remove the tubing plate (with

suction tube grommet) and slide the plate with

grommet onto the refrigerant lines (field line-set), away

from braze joints.

3. Remove rubber plugs from coil stubs using a pulling

and twisting motion. Hold coil stubs steady to avoid

bending or distorting.

4. Wrap TXV and nearby tubing with a heat-sinking

material such as a wet cloth.

REFRIGERANT METERING DEVICE

5. Fit refrigerant lines into coil stubs. Wrap a heat sinking

material such as a wet cloth behind braze joints.

6. Braze using a SiI-Fos or Phos-copper alloy.

7. After brazing, allow joints to cool. Slide tubing plate

back into place and position grommets around suction

and liquid tubes to ensure air seal.

PRODUCT DAMAGE HAZARD

Failure to follow this caution may result in product

damage.

Braze with SiI-Fos or Phos-copper alloy on copper-

to-copper joints and wrap a wet cloth around rear of

fitting to prevent damage to TXV.

FEM4X, FSM4X, FSU4X, FXM4X

These Fan Coils have a factory installed hard shut-off TXV

designed only for use with R-410A refrigerant. Use only with

outdoor units designed for R-410A.

TXV is factory set and not field adjustable.

PRODUCT DAMAGE HAZARD

Failure to follow this caution may result in product

damage.

This Fan Coil has a hard shut-off TXV metering de-

vice. A compressor Hard Start Kit is REQUIRED in all

applications where the matching outdoor unit has a

single-phase reciprocating compressor.

14 496 01 5402 02

CONDENSATE DRAINS

Unit is provided with primary and secondary 3/4" (19mm)

NPT drain connections. Refer to Figures 2, 3, 4, 5, and 6 to

identify the primary and secondary locations. To prevent

property damage and achieve optimum drainage

performance, BOTH primary and secondary drain lines

should be installed and include properly sized condensate

traps (refer to Figure 18). Factory approved condensate

traps are available (accessory part number EBAC01CTK).

To connect drainlines, the drain connection knock-outs must

be removed. Use a knife to start the opening near the tab and

using pliers, pull the tab to remove the knock-out. Clean the

edge of the opening if necessary. After drain fittings are

installed, caulk the seam between the fitting and the cover to

retain the low leak rating of the unit.

It is recommended the PVC fittings be used on the plastic

condensate pan. Do not over-tighten. Finger-tighten plus

1-1/2 turns. Use pipe dope, to ensure proper seal.

Install traps in the condensate lines as close to the coil as

possible (refer to Figure 20), but avoid blocking filter access

panel.

Install drain lines below the bottom of the drain pan and pitch

the drain lines down from the coil at least ¼inch per foot of

run (6mm per 0.3m). Horizontal runs over 15 feet (5m) long

must also have an anti-siphon air vents (stand pipes),

installed ahead of the horizontal runs. Extremely long

horizontal runs may require oversized drain lines to eliminate

air trapping.

Route primary drain line to the outside or to a floor drain.

Check local codes before connecting to a waste (sewer) line.

Route the secondary drain line to a place in compliance with

local installation codes where it will be noticed when unit is

operational. Condensate flowing from secondary (overflow)

drain indicates a plugged primary drain - unit requires

service or water damage will occur.

Prime all traps, test for leaks, and insulate drain lines where

sweating could cause water damage. Consult local codes for

additional requirements or precautions.

If a gravity drain cannot be used, install a condensate pump.

Install the pump as close to the indoor section as possible.

PRODUCTorPROPERTYDAMAGE HAZARD

Failure to follow this caution may result in product or

property damage.

Use only full size P-traps in the condensate line (refer

to Figure 18). Shallow, running traps are inadequate

and DO NOT allow proper condensate drainage (refer

to Figure 19).

Figure 18 1 Recommended Condensate Trap

2 MIN (51mm)

Figure 19 1 Insufficient Condensate Trap

DO NOT USE SHALLOW RUNNING TRAPS!

Figure 20 1 Condensate Drain

! o

¢q

oo o

UIRED

(USE FACTORY KIT OR

_xxFIELD-SU PPLIED TRAP)

PRIMARY TRAP REQUIRED (USE FACTORY KIT OR

FIELD-SUPPLIED TRAP OF PROPER DEPTH.

STANDARD P-TRAPS ARE NOT SUFFICIENT. SEE

FIGURE OF RECOMMENDED CONDENSATE TRAP)

496 01 5402 02 15

ACCESSORIES

A. ELECTRONIC AIR CLEANER

The Electronic Air Cleaner may be connected to FSM4X and

FSU4X fan coils as shown in Figure 21. This method

requires a field supplied transformer. See Electronic Air

Cleaner literature for kit requirements.

Figure 21 Wiring Layout of Electronic Air

Cleaner to Fan Coil (FSM4X &

FSU4X)

CONTROL BOARD

/ R G C C CFAN RELAY

230vAoNONq I I I I I

.o.c /\

/ 208/230V COM /\

I_ 24MAC f }COM

CONVERSIONKITII , , , II I I/ ,,II

TOTRANSFORMER_1 I _-

BLOWER I_1 I I ¢-'_ I

MOTOR '1 I' I '1 I'

I'TO EACh' _ ; 208/230V

FROM MOLEX

PLUG AND

TRANSFORMER

(IN UNIT)

Figure 22 Wiring Layout of Humidifier to Heat

Pump

THERMOSTAT

D-

FAN COIL

(CONTROL)

IVV_y__ w3

/WO,E ,

IL_ I ]

FANH'IuMID,F_ I_-- RELAY I

, I I _ i I

-_--_ I--N III Lh _-t Ii

• b IHuMIDISTAT

HEAT PUMP

(CONTROL)

B. HUMIDIFIER

Connect humidifier and humidistat to fan coil unit as shown in

Figure 22 and Figure 23.

Figure 23 Wiring Layout of Humidifier to Fan

Coil with Electric Heat

FAN COIL

THERMOSTAT (CONTROL)

_ RED R

I l vlo

I E

IB_IN

I i

I I '

;

[--q

115V

C AIR COND.

Ca__c

I HUMIDISTAT

[11 -O

-O

16 496 01 5402 02

SEQUENCE OF OPERATIONS

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-energized, there is a 90 second off

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 second off delay before fan relay

opens.

C. HEAT PUMP HEATING MODE

Thermostat energizes R to G and R to Y. G energizes fan

relay on electronic fan board which completes circuit to

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

second off 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 PCB which completes circuit to indoor

blower motor. W energizes electric heat relay(s) which

completes circuit to heater element(s). When W is

de-energized, electric heat relay(s) open, turning off heater

elements. When G is de-energized there is a 90 second off

delay before 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-energized, electric heat relay(s) opens.

START-UP PROCEDURE

Refer to outdoor unit Installation Instructions for system

start-up instructions and refrigerant charging method

details.

CARE AND MAINTENANCE

The system should be regularly inspected by a qualified

service technician. Consult the servicing dealer for

recommended frequency.

Between visits, the only consumer service recommended or

required is air filter maintenance and condensate drain

operation.

Air Filter

Inspect air filters at least monthly and replace or clean as

required. Disposable type filters should be replaced.

Reusable type filters may be cleaned by soaking in mild

detergent and rinsing with cold water. Install filters with the

arrows on the side pointing in the direction of air flow.

Condensate Drain

PRODUCT DAMAGE HAZARD

Failure to follow this caution may result in poor unit

performance and/or product damage.

Never operate unit without a filter. 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-supplied filter

must be installed in the return duct system.

During the cooling season check at least monthly for free flow

of drainage and clean if necessary.

496 01 5402 02 17

AIRFLOW PERFORMANCE TABLES

Model

FEM4X18OO

FEM4X2400

FEM4X3000

FEM4X3500

FEM4X3600

FEM4X4200

FEM4X4800

Blower Speed

High

Medium

Low

High

Medium

Low

High

Medium

Low

High

Medium

Low

High

Medium

Low

High

Medium

Low

High

Medium

Low

Measured Static Pressure, inlet to outlet

0.10 0.20 I 0.30 I

ii ii ! !ili!

614 ....

823

633

1130

1033

84O

659 619

572 530

905 868

786 747

583 533

1097 1063

1000 965

802 760

1282 1238 1192

1168 1118 1067

1327

1192

iiiillliiiiil,!,iiiiiii,_ii_i_,i_iii_i,ii,!,i_iilDi....

1479

1303

1805

1652

1458

1282 1236

1151 1100

1578 1533

1437 1392

1258 1211

1772 1739

1617 1581

1418 1377

(inches water

0.40

666

578

486

83O

7O7

482

1028

928

713

1308

1142

1014

1344

1187

1039

1480

1344

1161

1704

1543

1335

column)

0.50

619

538

441

792

665

431

992

888

663

1257

1090

959

1293

1135

970

1420

1293

1108

1669

1504

1292

0.60

566

499

396

753

622

378

955

846

609

1204

1036

903

1240

1081

890

1353

1240

1054

1632

1463

1248

i iiii iiii! !i !!!!!!!!!!!!!!!!!!!!!!!!!....

Measured Static Pressure, inletto outlet(inches watercolumn)

Model Blower Speed 0.10 0.20 0.30 0.40 0.50 0.60

Tap 5 1897 1867 1836 1808 1774 1736

Tap 4 1817 1785 1757 1724 1693 1655

FEM4X6000 Tap 3 1817 1785 1757 1724 1693 1655

Tap 2 1657 1621 1589 1557 1518 1474

Tap 1 1443 1412 1377 1332 1286 1243

!ii !!!!!!! ....

Measured Static Pressure, inlet to outlet (inches water column)

Model Blower Speed 0.10 0.20 0.30 0.40 0.50 0.60

FSM4X6000 High _28 : . 1965 1875 1778 1674

Medium 1959 1898 1829 1750 1663 1566

FSU4X6000 Low 1748 1709 1659 1598 1525 1442

18 496 01 5402 02

Model

FXM4X1800

FXM4X2400

FXM4X3000

FXM4X3600

FXM4X4200

FXM4X4800

FXM4X6000

NOTES:

Blower Speed

Tap 5

Tap 4

Tap 3

Tap 2

Tap 1

Tap 5

Tap 4

Tap 3

Tap 2

Tap 1

Tap 5

Tap 4

Tap 3

Tap 2

Tap 1

Tap 5

Tap 4

Tap 3

Tap 2

Tap 1

Tap 5

Tap 4

Tap 3

Tap 2

Tap 1

Tap 5

Tap 4

Tap 3

Tap 2

Tap 1

Tap 5

Tap 4

Tap 3

Tap 2

Tap 1

Measured Static Pressure, inlet to outlet

0.10 I 0.20 I 0.30

683 644

631 563

625 524

!!!!!!i!:

825 795

726 695

631 563

1041

924

779

1237

1095

1014

1519

1437

1257

1237

1757

1664

1459

1301

2030

1811

1665

1462

998

876

693

1332

1206

1058

885

1490

1403

1226

1206

1725

1626

1420

1241

1995

1775

1632

1418

589

5OO

457

891

757

635

5OO

1104

944

817

628

1294

1160

1007

773

1454

1366

1191

1160

1693

1593

1379

1195

1961

1740

1593

1371

(inches water

0.40

66O

548

443

417

851

722

598

443

1050

886

752

571

1253

1121

951

673

1419

1333

1141

1121

1653

1552

1336

1150

1927

1703

1556

1327

column)

0.50

609

494

409

367

816

674

543

409

1003

837

7O4

526

1207

1070

888

609

1379

1294

1090

1070

1614

1517

1298

1102

1888

1664

1507

1278

0.60

572

461

361

319

78O

634

5O9

361

959

772

660

476

1157

1013

824

549

1332

1245

1033

1013

1576

1477

1259

1039

1842

1613

1453

1228

1. Airflow based upon dry coil at 230v with factory approved filter and electric heater (2 element heater sizes 1800 through 3600, 3 element heater sizes 4200 through

6000).

2. Airflow at 208 volts is approximately the same as 230 volts because the ECM motor is a constant torque motor. The torque doesn't drop off at the speeds the

motor operates.

3. To avoid potential for condensate blowing out of drain pan prior to making drain trap: Return static pressure must be less than 0.40 in. wc. Horizontal

applications of 4200 - 6000 sizes must have supply static greater than 0.20 in. wc.

4. Airflow above 400 cfm/ton on 4800 - 6000 size could result in condensate blowing off coil or splashing out of drain pan.

5. Not recommended for use above 0.60 inches water column external static pressure.

6. Shading - Airflow outside 450 cfm/ton.

496 01 5402 02 19

CFM

FEM4X 400 600 800 1000 1200 1400 1600 1800 2000

1800 0.020 0.044 0.075 ......

2400 -- 0.044 0.075 0.110 .....

3000 -- -- 0.048 0.072 0.100 ....

3500 -- -- -- 0.072 0.100 0.130 -- -- --

3600

4200 .... 0.070 0.092 0.120 -- --

4800 ..... 0.092 0.120 0.152 --

6000 ...... 0.086 0.105 0.130

Airflow performance chart was developed using fan coils with DRY coils.

When taking a static reading across a WET coil, adjust the static pressure numbers by adding the values in this table (for a given

CFM, wet coil will have greater static pressure drop than dry coil).

CFM

FEM4X 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

1800 0.034 0.049 0.063 .............

2400 0.016 0.027 0.038 0.049 0.059 ...........

3000 -- -- -- 0.049 0.059 0.070 0.080 .........

3500 ..... 0.055 0.064 0.073 0.081 .......

3600 ..... 0.034 0.042 0.049 0.056 .......

4200 ....... 0.049 0.056 0.063 0.070 .....

4800 ......... 0.038 0.043 0.049 0.054 0.059 -- --

6000 ........... 0.049 0.054 0.059 0.065 0.070

! !!! ....

FSM4X CFM

FSU4X 400 600 800 I 1000 1200 I 1400 1600 1800 2000

m m

6000 ...... 0.120 0.152 0.187

Airflow performance chart was developed using fan coils with DRY coils.

When taking a static reading across a WET coil, adjust the static pressure numbers by adding the values in this table (for a given CFM, wet

coil will have greater static pressure drop than dry coil).

FSM4X CFM

so4x 16oo17oo18ooiooo1 ooo1 oo1 oo1 3oo1 4oo1 oo1 6oo1 7oo1 8oo1 ooo1 ooo

6000 ........... 0.027 0.031 0.035 0.039 0.043

20 496 01 5402 02

CFM

FXM4X I I

_oo 6oo I 8oo _oooI _oo _oo _6oo _8oo _ooo

1800 0.020 0.044 0.075 ......

2400 -- 0.022 0.048 0.072 0.100 ....

3000 -- 0.022 0.048 0.072 0.100 ....

3600 -- -- -- 0.051 0.070 0.092 0.120 0.152 --

4200 -- -- -- 0.051 0.070 0.092 0.120 0.152 --

4800 -- -- -- 0.051 0.070 0.092 0.120 0.152 --

6000 ...... 0.086 0.105 0.130

Airflowperformancechartwas developedusingfan coilswith DRY coils.

When takinga staticreadingacrossa WET coil,adjustthe staticpressurenumbersby adding the valuesinthis table (fora given CFM,wet

coil will have greaterstaticpressuredropthan dry coil).

CFM

FXM4X I I I I

500160017001800900,000,,00,200,300,400,500,600,700,800,90012000

1800 0.034 0.049 0.063 .............

2400 0.016 0.027 0.038 0.049 0.059 ...........

3000 -- -- -- 0.049 0.059 0.070 0.080 .........

3600 ..... 0.055 0.064 0.073 0.081 .......

4200 ....... 0.049 0.056 0.063 0.070 .....

4800 ......... 0.038 0.043 0.049 0.054 0.059 -- --

6000 ........... 0.027 0.031 0.035 0.039 0.043

Airflow performance chart was developed using fan coils with 10 kW electric heater (2 elements) in the 1800 - 3600 model

sizes, and 15 kW electric heaters (3 elements) in the 4200 - 6000 model sizes.

When using a different number of heater elements, adjust the static pressure numbers by adding or subtracting the values

in this table (for a given CFM, more electric heater elements create higher static pressure drop).

FEM4X

FSM4X

FSU4X

FXM4X

1800

2400

3000

3500

3600

4200

4800

6000

Heater kW

No Heater 5 8 or 10 9 or 15 I20

Number of Heat Elements

+0.02

+0.04

+0.01

+0.02

-0.02

-0.04

-0.02

I8, 24, or

1 30

-0.10

496 01 5402 02 21

R-410A QUICK REFERENCE GUIDE

• R-410A refrigerant operates at 50% -70% higher pressures than R-22. Be sure that servicing equipment and

replacement components are designed to operate with R-410A.

• R-410A refrigerant cylinders are rose colored.

• Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.

• R-410A systems should be charged with liquid refrigerant. Use a commercial type metering device in the

manifold hose.

° Manifold sets should be 750 psig high-side and 200 psig low-side with 520 psig low-side retard.

° Use hoses with 750 psig service pressure rating.

° Leak detectors should be designed to detect HFC refrigerant.

° R-410A, as with other HFC refrigerants, is only compatible with POE oils.

° POE oils absorb moisture rapidly. Do not expose oil to atmosphere.

° POE oils may cause damage to certain plastics and roofing materials.

° Vacuum pumps will not remove moisture from oil.

° A liquid line filter-drier is required on every unit.

° Do not use liquid line filter-driers with rated working pressures less than 600 psig.

° Do not install a suction line filter-drier in liquid line.

° Wrap all filter-driers and service valves with wet cloth when brazing.

° Do not use with an R-22 TXV.

° If indoor unit is equipped with an R-22 TXV, it must be changed to an R-410A TXV.

° Do not use capillary tube indoor coils.

° Never open system to atmosphere while it is under a vacuum.

° When system must be opened for service, break vacuum with dry nitrogen and replace all filter-driers.

° Do not vent R-410A into the atmosphere.

° Observe all WARNINGS, CAUTIONS, NOTES, and bold text.

International Comfort Products, LLC

22 Lewisburg, TN 37091 USA 496 01 5402 02

ICP FSM4X6000AT User Manual FAN COILS Manuals And Guides 1209239L

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