Carrier FE4ANB006000 User Manual FAN COIL Manuals And Guides L0704480

CARRIER Air Handler (indoor blower&evap) Manual L0704480 CARRIER Air Handler (indoor blower&evap) Owner's Manual, CARRIER Air Handler (indoor blower&evap) installation guides

User Manual: Carrier FE4ANB006000 FE4ANB006000 CARRIER FAN COIL - Manuals and Guides View the owners manual for your CARRIER FAN COIL #FE4ANB006000. Home:Heating & Cooling Parts:Carrier Parts:Carrier FAN COIL Manual

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Installation Instructions
NOTE:
Read
installation.

the entire

instruction

manual

before

starting

the

PAGE
SAFETY

CONSIDERATIONS

INTRODUCTION

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

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

INSTALLATION

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

Equipment

Mount

Fan Coil ..................................

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

2
6

Electrical

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

Refrigerant

Tubing

Connection

Condensate

Drain

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

Accessory
Start-Up
FE4A,
(;ARE

..........

8
8

and Troubleshooting

REFRIGERANT

SAFETY

of Operation

10
.........

........................
QUICK

suggestions
operation.

death.

ELECTRICAL

OPERATION

Failure to follow
or death.

this warning

REFERENCE

GUIDE

. 15

CONSIDERATIONS

OPERATION
this warning

Consult
a qualified
distributor
or branch
qualified

installer

Model FE4A.
communicating
provide
nominal

could result

in personal

agency,
or
or assistance.

must use factory-authorized

injury

warnings or cautions attached to the unit.
codes
and
National
Electrical
Code
requirements.

When

information.

you see this symbol

be alert to the potential

Consult
(NEC)

This is the safety-alert

could result in personal

injury

to be installed with a
FE5A fan coils will

modify
the commanded
airflow under certain operating
Refer to the User Interface literature
for further system

guidance
FE5A

(R-410A)
refrigerant

kits

local building
for
special

modes.
control

not respond
to commands
from a
under certain emergency
situations
The instructions
contained
herein

to successfully

fan coil units

The
will

install this fan coil.

are designed

for upflow

or downflow

These

units

are

designed

specifically

for Puron 'R)

refrigerant
and must be used only
with
air conditioners
and heat pumps as shipped.

These units are designed
currently
in effect. Because
the condensate
tubing.

to meet low air leak requirements
of this, units need special attention in

pan and drain

connection

area and when

These units are available
for application
through
60,000
Btuh
nominal
Factory-authorized,
field-installed
available
in 5 through
30 kW.
accessory

Puron 'R)

in systems
cooling

brazing

of 18,000
capacities.

electric heater
packages
are
See Product Data for available

kits.

INSTALLATION
symbol

on the unit and in instructions

for personal

HAZARD

FE5A fan coils are designed
User Interface. The FE4A,

applications.

your
The

Follow all safety codes. Wear safety glasses and work gloves. Use
quenching
cloth for brazing
operations.
Have fire extinguisher
available.
Read these
instructions
thoroughly
and follow
all

safety

reliability,

applications
only. Model FE4A fan coil units are designed
for
flexibility
and can be used for up flow. horizontal,
or downflow

or accessories
when modifying
this product.
Refer to the
individual
instructions
packaged
with kits or accessories
when installing.

Recognize

installation,

airflow at a rate commanded
by the User Interface.
airflow/ton
rate is 350 CFM/ton.
The User Interface

provide

HAZARD

installer,
service
for information

or agency

hazards

INTRODUCTION

Model
Failure to follow
or death.

signifies

Before installing or servicing unit. always turn off all power
to unit. There may be more than 1 disconnect
switch. Turn
off accessory heater power if applicable.

details. This fan coil will
common
thermostat
except
explained
in this document.
ELECTRICAL

WARNING

which will result in enhanced

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

FE5A Fan Coil Sequence

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

AND MAINTENANCE

PURON@

& Evacuation

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

Installation

injury

Air Ducts .......................................

[]nit Start-Up

personal

Check

Connections

severe

which could result in personal injury or death. CAUTION
is used
to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to highlight

/_.

manuals,

injury.

Understand
the signal words DANGER,
WARNING,
CAUTION,
and NOTE. These words are used with the safety-alert
symbol.
DANGER
identifies the most serious hazards which will result in

Procedure
Unpack

1 --

shipping

Equipment

unit and move to final location.

not to damage
Inspect

Check

Remove

carton taking

care

unit.

equipment
company

for damage
if shipment

prior to installation.
is damaged

File claim with

or incomplete.

Locate

unitratingplatewhichcontains
proper
installation
information.
Check
rating
plate
tobesure
unitmatches
jobspecifications.
Procedure

2 --

Mount

Fall

Coil

FE5A
FE4A

units can be installed in upflow or downflow
unit can stand or lie on floor, or hang from

Allow

space for wiring,

IMPORTANT:
and/or

When

living

recommended

area,
by

condensate

piping,
unit

proper trapping
is installed

building
the

codes

factory,

pan to be installed

under

positions only.
ceiling or wall.

and servicing

over
may

a finished

unit.

require

ceiling

and

field-supplied

secondary

the entire unit. Some

localities

may allow
the alterative
of running
a separate,
secondary
condensate
line. Consult local codes for additional restrictions
or

To disassemble
unit. remove
screws which secure brackets.

rear corner brackets by removing
2
Remove either 2 screws in each front

corner of coil box. or 2 screws in blower box. (See Fig. 4.) Do not
remove all 4 screws in each corner. Sections may now be separated
by lifting top section from lower section.
To reassemble,
fasteners when
B. Upflow

reverse above
reassembling.

procedure.

air is to be ducted

opening
resilient

and use 1/8" / 3.18 mm to 1/4" / 6.35 mm thick
gasket between duct, unit, and floor.

Side return

through

is a field option

precautions.
FE5A fan coils can be installed for up flow applications
as factory
shipped.
FE4A
fan coils can be installed
for upflow
and

All return-air

must pass through

as factory

shipped.

(See Figures

1, 2

and 3.) FE4A
units
can be installed
for horizontal-right
applications
with field modifications.
FE4A and FE5A units may
be converted
for downflow
applications
using factory-authorized
accessory kits.
NOTE:

To ensure proper

drainage

must be installed so it is within
and width of unit.
A. Modular
The FE4A
are 2-piece

for horizontal

installations,

unit

1/8" / 3.18 mm level of the length

C. Horizontal

units. Modular

construction

allows

installer

coil box and blower

POWER ENTRY OPTIONS

per

closure

Only)

with access panels

facing

up or down.

may be used to assist in the water management.
Be sure installation
may require

2. When

complies

installation
support

with all applicable

of a secondary

building

condensate

for unit by setting

codes that

pan.

it in or above

secondary

pan.

suspending

cate proper

unit from ceiling

location

of screws

dimples

for mounting

in casing
metal

indi-

support

straps. (See Fig. 2.)

box, for

--_

Cut opening
bottom

For applications
having high return static and humid return air. the
Water Management
Kit, accessory
part no. KFAHC0125AAA,

Units

modular

fireproof

the coil.

(FE4A

Units must not be installed

condensate

disassemble
unit into 2 components,
ease of installation.

1.) A field-supplied

Installations

1. Arrange

Fan Coil in size 006 and the FE5A Fan Coil in size 004

Fig.

a floor, set unit on floor over

on slope coil models.

(See

applications

all

Installation

If return

dimensions.
required.

horizontal-left

Be certain to reinstall

FIELD

SUPPLIED

SUPPLY

DUCT

ENTRY OPTIONS

002 - 17,5" (444,5 mm)
003,004, 005 21" (533.4 mm
006 24" (609,6 turn)
FRONT SERVICE
_.
CLEARANCE

UPFLOW/_

iTF

1/2,,

(38.1mm)

FIELD MODIFIED
SIDE RETURN
LOCATION FOR
003 UNITS ONLY

PRIMA_

UPFLOW/DOWNFLOW
SECONDARY DRAIN

UPFLOW/DOWNFLOW
PRIMARY
DRAIN

J
FIELD
RETURN

SUPPLIED
PLENUM

A07139

Fig. 1 - Slope Coil Unit

in Upflow

Application

)
PRIMARY
DRAIN

FIELD
SUPPLIED
HANGING
STRAPS

002-005 21" (533,4 mm)
006 24" (609,6 ram)
FRONT SERVICE
CLEARANCE
(FULL FACE
OF UNIT)

UNIT

LOW VOLT
ENTRY
OPTIONS

1 3/4" (44,45 mm)
FILTER ACCESS
CLEARANCE
PRIMARY
DRAIN
SECONDARY
DRAIN

POWER
ENTRY OPTIONS

A07140

Fig. 2 - Slope

('oil

in Horizontal-Left

Application

(Factol T Ready

FE4A

only)

FACTORY SHIPPED
HORIZONTAL LEFT
APPLICATION

COIL
BRACKET

COIL
SUPPORT
RAIL
DRAIN PAN
SUPPORT
BRACKET

COIL
BRACKET

HORIZONTAL
DRAIN PAN

PRIMARY DRAIN
HORIZONTAL LEFT

AIR SEAL
ASSEMBLY

SECONDARY DRAIN
HORIZONTAL LEFT
REFRIGERANT
CONNECTIONS
A00072

Fig. 3 - A-Coil

in Horizontal-Left

Application

(Factory

Ready

FE4A

Only)

Make sure liquid

and suction

air leaks and cabinet
E. Horizontal
Only)

tube grommets

sweating.

Right

Conversion

To convert units for horizontal

BLOWER BOX

of Units

after brazing.

With A-Coil

(FE4A

right installations:

1. Remove

blower

2. Remove
Remove

metal clip securing
fitting panel.

and coil access panels.

3. Remove

2 snap-in

(See Fig. 6.)

fitting panel to condensate

clips securing

4. Slide coil and pan assembly

-2SCREWS

are in place to prevent

Install _rommets

A-coil

pan.

in unit.

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

.2SCREWS

on right side of unit.
6. Convert

air seal assembly

a. Remove
screws.

for horizontal

air seal assembly

right.

from coil by removing

BRACKET

b. Remove air splitter (B) from coil seal assembly
moving 3 screws. (See Fig. 6 inset)

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

2SCREWS
O01L

by re-

BOX

d. Install filler plate (A) as shown in horizontal
plication.
e. Remove condensate
tube sheets.

troughs

right ap-

f. Install hose onto plastic spout.
7. Install horizontal
A95293

Fig. 4 - Modular

corner

Unit Assembly

9. Reinstall
D. Horizontal-Right
(FE4A Only)

Conversion

NOTE:

Gasket

horizontal

slope coil conversion

kit

number

of Units

with

Fd:AHD0101SLP
to maintain

Slope

('oils

is required

low air leak/low

for
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

coil assembly.

4. Lay fan coil on its right side and reinstall
condensate
pan down.
5. Attach coil to casing
mounting screw.

flange

coil assembly

using previously

removed

8. Reinstall
tubing

included

access panels
connections

into casing.
pan engages

2 snap-in

clips

Be sure coil bracket
coil support

to correctly

on each

rails.

position

and secure

coil assembly in unit. Be sure clip with large offset
on right side of unit to secure horizontal pan.

is used

10. Remove two oval fitting caps from left side of the coil, access panel, and fitting panel.
11. Remove
panel.

insulation

knockouts

on right side of coil access

12. Remove
2 oval coil access panel plugs and reinstall
holes on left side of coil access panel and fitting panel.

with
coil

ly on back side of the coil door.
interferes with seating of cap.
14. Reinstall access
ing connections
reinstall

6. Make sure pan cap in fitting door is properly seated
ting door to retain low air leak rating of the unit.
7. Add gaskets

of vertical

into

13. Install condensate
pan fitting caps (from Step 10) in right
side of coil door making sure that cap snaps and seats clean-

flange.
3. Remove

pan on right side of coil assembly.

8. Slide coil assembly

on fit-

in kit per kit instructions.
and fitting panel,

and condensate

aligning

holes with

pan connections.

densate

metal

Make

sure

no insulation

and fitting panels, aligning holes with tuband condensate pan connections.
Be sure to
clip between

fitting

panel and vertical

con-

pan.

Make sure liquid and suction tube grommets
air leaks and cabinet sweating.

are in place to prevent

COIL MOUNTING

BLOWER
ASSEMBLY

COIL
SUPPORT
RAIL

SLOPE COIL
SKI

CONNECTIONS
SECONDARYDRAIN
A03001

Fig. 5 - Slope

Coil in Horizontal-Right

Application

(FE4A

only)

CONNECTIONS
HORIZONTAL
RIGHT
APPLICATION
SUPPORT
RAIL

BRACKET

SUPPORT
BRACKET
COIL_
SUPPORT
RAIL
COIL.
BRACKET
DRAIN PAN
HORIZONTAL

RIGHT

SECONDARY DRAIN
HORIZONTAL RIGHT
A00071

Fig. 6 - A-Coil

in Horizontal-Right

Application

(FE4A

only)

Downflow

Installations

(FE4A

and FE5A)

4" (101,6 mm) MAX

SECURE
FANFROM
COILTO
UNIT AWAY
WALLSTRUCTURE

PROPERTY

DAMAGE

Failure to follow
property damage.

PIPE STRAP
(TYPICAL BOTH SIDES)

HAZARD

this

caution

may

result

in product

OR
UNIT AGAINST WALL

1/8" (3,18 ram) THICK ANGLE
MOUNTING BRACKET
(TYPICAL BOTH SIDES)

DOWN FLOW
BASE KIT (KFACB)

In this application,
using accessory
NOTE:

field

conversion

downflow

To convert

of the evaporator

is required

kit along with an accessory

units

for downflow

SECURE UNITTO FLOOR
ANGLE BRACKET OR PIPE STRAP

base kit.

applications,

refer

Installation
Instructions
supplied with kit for proper installation.
For unit size 003, use kit Part No. KFADC0201SLP.
For unit sizes
002. 004, 005,

and 006, use kit Part No. KFADC0401ACL

fireproof resilient
and floor.
NOTE:

Gasket

all downflow

gasket,

1/8-

kit number
applications

to 1/4-in.

thick, between

Use

KFAHD0101SLP

is also required
air leak/low

for

sweat

performance.
G. Manufactured

and Mobile

Home

1. Fan coil unit must be secured
supplied hardware.
2. Allow

a minimum

3. Recommended

of 24-in.

method

Housing

Applications

to the structure

clearance

of securing

using

from access

for typical

A07141

duct, unit,

to maintain

low

4" (101,6 rnrn) MAX

field-

panels.

applications

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

Fig. 7 - Manufactured
Ductwork

Acoustical

insulation lining. As an alternative, fibrous ductwork may be used
if constructed and installed in accordance with the latest edition of
SMACNA
acoustical

construction
standard
on fibrous glass ducts. Both
lining and fibrous ductwork
shall comply with National

Fire Protection Association
Standards
Standard 181 for ('lass 1 air ducts.

Procedure

4 -- Electrical

If unit contains an electric
from fan coil and connect

to fan coil using No. 10 self tapping
stud using 5/16-in.
Procedure

3 --

Air

lag screws.

screws and to wall

(See Fig. 7.)

Line-Voltage

from
unit
Instructions.)

for type of duct used. and seal duct-to-unit

joint.

Duct connection
connection.

factory wiring
or installation.

unit

wiring

2. Connect
Check

provided

or B as tested by UL

Connections

For units without

Connect supply-air
duct over outside of 3/4-in.
flange provided
on supply-air
opening. Secure duct to flange with proper fasteners
are

90A

heater, remove and discard power
male plug from heater to female

harness.

(See

Electric

Heater

air

discharge

plug
plug

Installation

electric heat:

1. Connect 208/230v power leads from field disconnect
low and black stripped leads.

Ducts

flanges

Installation

Metal duct systems that do not have a 90%Ibow
and 10 ft. of main
duct to first branch
takeoff may require
internal acoustical

and fasten to wall stud of structure using 5/16-in.
screws. Typical 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

Home

Treatment

fan coil using No. 10 self tapping screws. Angle strap
down and away from back of fan coil, remove all slack,
lag

and Mobile

ground

all factory

wire to unit ground

wiring

connections

per

unit

wiring

to yel-

lug.
diagram

and

to be sure none were loosened

inspect
in transit

When using FE5A units with 20-kW
or FE4A units with 20-,
24-. and 30-kW electric heaters, maintain a l-in. clearance from
combustible

materials

distance of 36"
base to maintain
Use flexible
transmission
resistant

connectors
of vibration.

material

to discharge

plenum

and

ductwork

for a

/ 914.4 mm from unit. Use accessory
downflow
proper clearance on downflow
installations.
between
ductwork
and unit to prevent
When electric heater is installed, use heat

for flexible

at discharge connection.
space nmst be insulated

connector

between

ductwork

and unit

Ductwork
passing through unconditioned
and covered with vapor barrier.

ELECTRICAL

OPERATION

Failure to follow
or death.

this warning

HAZARD
could result in personal

injury

Before installing or servicing unit, always turn off all power
to unit. There may be more than 1 disconnect
switch. Turn
off accessory heater power if applicable.

ELECTRICAL
SHOCK
HAZARD
Failure
tnfnllowthiswarning
could
result
inpersonal
injury
ordeath.
If adisconnect
switch
istobemounted
ontheunit,select
a
location
where
drillorfastener
will notcontact
electrical
or
refrigerant
components.

ELECTRICAL

SHOCK

Failure to follow
or death.

this warning

Field wires

color-coded,
insulated
(35°Cminimum)
wiresor inaccordance
withlocalcodes.
Connect
low-voltage
leads
toUser
Interface
andoutdoor
unit.(See
Fig.9or10.)
NOTE:Where
localcodes
require
User
Interface
wiringberouted
through
conduit
orraceways,
splices
canbemade
inside
fancoil
unit.Allwiringmust
beNECClass
1andmust
beseparated
from
incoming
power
leads.
U_er

[lflel_ace

lal_

C{)il

HAZARD
could result

in personal

on the line side of the disconnect

injury

remain

live.

even when the pull-out is removed. Service and maintenance
to incoming
wiring can not be performed
until the main
disconnect switch (remote to the unit) is turned off.

NOTE:
certain

Before
that supply

on unit rating
utility
voltage

with

voltage,

frequency,

electrical

to handle

See unit wiring

wiring.

Make

disconnect

readily

from the unit.

accessible

field high-

connections

switch

by the
by this

and low-

in accordance

No_e:

branch electric

located

within

A07119

Fig. 9 - Fan Coil Wiring

circuit with

sight

from

and

disconnect

kit is available

for installation

with

Single-Stage

[sel

A factory-authorized

()commctionli_rhealptmq_useonly

with

that may apply. Use copper

wire only. The unit must have a separate
a field-supplied

provided

load imposed

label for proper

or ordinances

make

are as specified

service

the additional

all electrical

NEC and any local codes

connections,

and phase

plate. Be sure that electrical

is sufficient

equipment.

proceeding

hHel[_ce

Non-Communicating
AC / HP

[:m

Coil

Commuldcalil_

&CHP

0- through 10-kW applications.
When electric heat packages with
circuit breakers are installed, the circuit breaker can be used as a
disconnect.
Transformer
applications,
transfnrmer

is factory
disconnect
and connect

wired fnr 230-v
operation.
black wire from 230-v
it to 208-v

terminal.

For 208-v
terminal
on

(See Fig. 8.)

Humidilie]

A07120

Fig. 10 - Fan ('oil

A94067

Fig. 8 - Transformer
B. 24-V Control
Board (PCB)

System

Connections

Printed-Circuit

is located
more
the low-voltage

(35°C minimum)
wires
User Interface and unit.

than 100 ft. from unit (as
wires),
use No.
16 AWG

Communicating

AC/HP

C. Manufactured

Housing

In manufactured
Regulations,
Title

housing
applications,
the Code
of Federal
24, Chapter XX. Part 3280.714
requires that

supplemental

electric

above 40_'F (4.4°C),

Use No. 18 AWG color-coded,
insulated
to make low-voltage
connections between
If User Interface
measured
along

to Unit

Wiring

The

User Interface

heat
except

be locked

out at outdoor

for a heat pump

with an outdoor

defrost

air temperature

temperatures
cycle.
sensor

can be

used m lockout supplemental
heat above 40°F (4.4"_C) except for
heat pump defrnst cycle. Refer to User Interface Setup Instructions
fnr how to set "Electric Heat Lockout" temperature.

NOTE:Outdoor
airtemperature
sensor
is factory
installed
on
communicating
single-andtwo-stage
AC andHPunits.For
non-communicating
outdoorunits,installthe outdoorair
temperature
sensor
shipped
withtheUser
Interface.
D. Ground

Connections

PROPERTY

DAMAGE

Failure to follow
property damage.

this

Wrap a wet cloth around
TXV and factory
ELECTRICAL

OPERATION

Failure to follow
or death.

this warning

in personal

supply

wire(s)

connection
used.

to unit

Grounding

lug provided

may

and conduit

connector

and obtain

proper

grounding.

washers,

a separate

ground

uses reducing

also be accomplished

in control

result

in product

rear of fitting to prevent

damage

or
to

made joints.

4. Evacuate coil and tubing
vacuum method.

Procedure

of each circuit

to connect
If conduit
wire must be

by using

box. Use of dual or multiple

will require grounding
unit and heaters.

may

injury

6 --

PROPERTY
Use UL listed conduit

caution

HAZARD
could result

The cabinet must have an uninterrupted
or unbroken
ground
according
to NEC, ANSI/NFPA
70 and local codes 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.
(See Ground/Conduit
Note below.)

NOTE:

HAZARD

to ground

grounding

supply

Procedure 5 -- Refrigerant Tubing Connection
Evacuation
Use accessory
tubing
package
refrigerant
grade. Insulate
entire

circuits

lugs provided

and

or field-supplied
tubing
of
suction tube if field-supplied

tubing is used. Tubing package has an insulated suction tube. Do
not use damaged,
dirty, or contaminated
tubing because it may
plug refrigerant
flow control device. Always
evacuate
coil and
field-supplied
tubing to 500 microns before opening outdoor unit
service valves.

system

Condensate

DAMAGE

Failure to follow
property damage.

this

to 500 microns

using deep

Drain

HAZARD
caution

may

result

in product

The conversion
of the fan coil to downflow
requires special
procedures
for the condensate
drains on both A-coil
and
Slope-units.
The vertical
drains
have an overflow
hole
between the primary and secondary
drain holes. This hole is
plugged for all applications
except downflow,
but must be
used for downflow.
During the conversion
process, remove
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 the low air leak
performance
of the unit.
To connect drains, the cap openings
must be removed. Use a knife
to start opening near tab and using pliers, pull tab to remove disk.
Clean edge of opening if necessary and install the condensate
line.
Finally, caulk around lines where they exit fitting to retain low leak
rating of the unit. Units are equipped with primary and secondary
3/4-in.
FPT
drain
connections.
For proper
condensate
line
installation
see Figures
1, 2, 3. 5. and 6. To prevent property
damage
and achieve
optimum
drainage
performance.
BOTH

PROPERTY

DAMAGE

Failure to follow
property damage.
A brazing

shield

this

HAZARD
caution

MUST

primary

may

result

be used when

tubing

brazed to the unit connections
to prevent
surface and condensate
pan fitting caps.
Units have sweat suction
and
suction tube connection
first.
1. Cut tubing

to correct

2. Insert tube into sweat
3. Braze connection

liquid

in product

sets are being

damage

tube

to the unit

Make

length.
connection

on unit until it bottoms.

using silver bearing

or non-silver

bearing

brazing materials. Do not use solder (materials which melt
below 800°F / 427°C). Consult local code requirements.

drain lines should

be installed

and include

condensate
traps.
(See Figures
11 and 12.)
condensate
traps are available. Be sure to install
plugs in unused condensate
drain fittings. It is

recommended
that PVC fittings be used on plastic condensate
Do not over-tighten.
Finger-tighten
plus 1-1/2 turns. Use
dope.

connections.

and secondary

properly
sized
Factory-approved
plastic push-in

pan.
pipe

Condensate

drain lines should

be pitched

downward

at a minimum

of 1" / 25.4 mm for every 10' / 304.8 cm of length.
codes for additional restrictions or precautions.
UNIT

Consult

local

f
2" MIN
PROPERTY

DAMAGE

Failure to follow
property damage.

I I

2" MIN
(51 rn_

Never operate
removed.

HAZARD

this

caution

unit without

may

result

in product

a filter or with filter

access door

A0S002

Fig. 11 - Recommended

Condensate

Trap

o
o

JERACCESS

PANEL

SECONDARY
DRAIN WITH
APPROPRIATE
TRAP REQUIRED
(USE FACTORY KIT OR
FIELD-SUPPLIED
TRAP)
RRIMARYTRAP

DO NOT USE SHALLOW RUNNING TRAPS!
A03013

UIRED

Fig. 13 - Insufficient

FIELD-SUPPLIED
TRAP OF
SUFFICIENT
DEPTH.
STANDARD
P-TRAPS ARE
NOT SUFFICIENT
SEE
FIGURE OF RECOMMENDED
CONDENSATE
TRAP)

IMPORTANT:
A03003

Fig. 12 - Condensate

Trap and Unit

Factory

locating
the filter
applications
where
field-supplied

Condensate

authorized

inside
access

Trap

filters

must

used

when

the unit. (See Table 1.) For those
to an internal
filter is impractical,
a

filter must be installed

in return

duct system.

Table 1 - Filter Kits
PART NUMBER
KFAFK0212MED

FILTER KIT
PROPERTY

DAMAGE

Failure to follow
property damage.
Shallow

this

caution

may

result

in product

traps

condensate

are inadequate

drainage.

and DO NOT

When

filter access

connecting

Refer to outdoor

(See Fig. 13.)

panel.

Prime

traps after connecting
NOTE:
may

result

secondary

from

drain lines,

both primary

and secondary

in or above

condensate

pan should
condensate

a living

overflow,

be installed

using

be drained

an external

use of a separate

blocking

line (with

a field-supplied

appropriate

to a noticeable

condensate
3/4-in.

trap)

place.

damage
external

unit,

should

in this external

pan, some

condensate

entire

and a
be run

may allow

line (with appropriate

to
the

trap) to

a place where condensate
will be noticeable.
The owner of the
structure must be infornred that when condensate
flows from the
secondary
servicing,

drain

or external

or water damage

condensate

pan,

the

unit

requires

will occur.

Install traps in condensate lines as close to the coil as possible. (See
Fig. 12.) Make sure that the outlet of each trap is below its
connection
to the condensate
pan to prevent
condensate
from
overflowing
drain pan. Prime all traps,
traps if located above a living area.

004,006

Start-Up

unit Installation

and refrigerant

Instructions

charging

Low-Voltage

Circuit

Fusing

The

low-voltage

circuit

is fused

method

for system

start-up

details.

and Reference
by

a board-mounted

3-amp.

ground through a printed circuit run at SEC2 and metal PC board
mounting
eyelets. Check to be sure PC Board is mounted securely
using both factory installed screws.
NOTE:

Mis-wiring

connections

condensate

As an alternative

localities

003,005

automotive
fuse placed in series with transformer
SEC1 and R
circuit. The C circuit of transformer
circuit is referenced to chassis

condensate

space where

underneath

from unit into the pan. Any condensate
pan should

avoid

to drain pan.

If unit is located

condensate

Unit

WlTH

allow
instructions

NOTE:

7 --

USED
002

KFAFK0312LRG
KFAFK0412XXL

(12 PACK)

Procedure

running

proper

HAZARD

SIZE

test for leaks, and insulate

damage
replace

may cause

the User Interface
fuse to correct

Procedure

8 --

shorting

the

low

fuse to open

or fan coil control.

Simply

voltage

but will

not

rewire

and

fault.

Accessory

A. Accessm T Electric

any

the low voltage

Installation

Heaters

Electric heaters may be installed with FE4A. FE5A fan coil per
instructions
supplied with electric heater package. See unit rating
plate for factory-approved
electric heater kits.

B. Hydronic
HeatApplications
The FE fan coil supports

2 types of Hydronic

1. Hot water coil in combination
ter coil as sole heat source.
2. FE fall coil combined
In either

application,

with a heat pump,

or hot wa-

Interface

hot water heat.

Kit, KFAIF0101HWC,

be installed in place of an electric heater. The system
that
Hydonic
Heat
has
been
installed
during

must

will identify
the initial

commissioning
process. The system will treat the hot water coil as
either auxiliary heat in a heat pump application,
or as the sole heat
source. Setup options for Hydronic Heat applications
are described
in the User Interface Installation
Instructions.
Options include: Hot
Water Only Operation,
Heat Pump Only Operation,
Hot Water
Operation
during
ON/OFF Delays.
C. Outdoor

Defrost,

Airflow

Level

Selection,

and Blower

The FE fan coil G thermostat terminal
input can be configured
through
the User Interface to recognize
a Generator
Normally
Open dry-contact
output to signal the system that a generator
malfunction
condition
exists. Wire the generator
output in series
with the R and G thermostat connections
at the fan coil control
board.
The
User
Interface
will
MALFUNCTION
when the G thermostat

display
GENERATOR
input is energized. This

function requires the addition of a Generator Self Test Verifier (Part
No.
GSV200)
which
must
be purchased
separately.
Visit
www.GeneratorVeHfie1:com
for details and ordering information.
Refer to the User Interface Installation Instructions
for more detail.
See Fig. 14.

Air Thermistor

A 2-screw

for more detail. See Fig. 14.
G. Generator

with radiant

Relay

outdoor equipment
and will display SYSTEM
MALFUNCTION
on its screen. Refer to the User Interface Installation Instructions

Heat applications:

terminal

(OAT)

strip is provided

for connection

of an outdoor

temperature
thermistor. This strip is marked OAT. The installation
of an outdoor temperature
sensor using the fan coil OAT terminals
is optional. If the outdoor unit is not equipped for communications,
fan coil OAT input can be used to supply outdoor temperature
data
for system level functions
and for temperature
display on User
Interface. Outdoor units with a communicating
control are shipped
with a factory installed OAT. This factory installed OAT is used for
all outdoor
unit specific and system level functions
requiring
outdoor temperature
if an OAT is not added to fan coil. If an OAT
is added in the fan coil. the fan coil connected OAT will be used for
system level functions and the factory supplied
will be used for outdoor unit control functions.
Using two wires of field-supplied
lead of thermistor
to one screw

outdoor

H. Ventilation

Accessory

The FE fan coil G thermostat
terminal
input can be configured
through
the User Interface
to recognize
a Normally
Open
dry-contact
output
to signal
the system
that a Ventilation
Accessory requires fan coil blower operation. Blower operation can
be configured for Low, Med or High speed when the G terminal is
energized.
thermostat

Wire the Accessory
output in series with the R and G
connections
at the fan coil control board. Refer to the

User Interface

Installation

Instructions

for more detail. See Fig. 14.

unit OAT

thermostat wire cable, wire one
terminal
and the other lead to

remaining
screw terminal; there is no polarity to be observed.
strongly
recommended
that two wires be used to connect

It is
the

thermistor to eliminate noise interference
in temperature
reading. If
there are not two spare wires available in cable, one wire may be
used to connect thermistor to OAT screw terminal 1 and the other

{1 s

S3stem

OPN

S]mldoa

s) _lem
II

Slmldo_11

De_ice

De_ice
(}ellelalol

lead of the thermistor can be wired to 24VAC COM (C) wire. OAT
screw terminal 1 is terminal located closest to the ABCD system
communications
and is marked with a small number 1 next to the
terminal

strip.

NOTE:

Mis-wiring

fan coil control
no

reading

correctly

OAT inputs

or thermistor.

will

appear

for normal

D. Electronic

will not cause damage

If the thermistor

at User

Interface.

to either

is wired

incorrectly,

Re-wire

thermistor

operation.

Air Cleaner

Connections

When using an electronic air cleaner with FE4A. FE5A fan coil,
use airflow sensor part no. KEAAC0101AAA.
The airflow sensor
turns on electronic air cleaner when fan coil blower is operating.
E. Humidifier

A07121

Fig. 14 - "G"

Terminal

Accessory

Wiring

Connections

Tire fan coil control terminal marked "HUM" is provided for low
voltage (24VAC) control of a humidifier.
No humidistat is required
as User Interface monitors indoor humidity. When commanded
to

Procedure
NOTE:

9 -Always

components.

Start-Up

and

Troubleshooting

check high and low voltage

Check

the integrity

supply

to tire fan coil

of the plug receptacle

connections

operate humidifier,
the fan coil control will energize the "HUM"
output to turn humidifier on and de-energize
HUM output to turn
humidifier
off. Wire "HUM"
and "C'
terminals
directly
to

and fan coil wiring

humidifier

LEDs built into fan coil control provide installer or service person
information
concerning
operation and/or fault condition of the fan
coil control and ECM motor. This information
is also available at

as shown

17. System
The

in Fig. 9 or 10.

Shutdown

FE fan

Accessories

coil G thermostat

terminal

input

can be configured

through the User Interface to recognize
accessories
that will shut
the system down in response to a malfunction.
Types of devices
may include a Condensate
Overflow
Switch that is designed for
this purpose.

The

fan coil can be configured

to recognize

either

Normally
Open or Normally
Closed
(default)
contact
devices
through the User Interface Set-Up
screens. Wire the accessory
device contacts in series with the R and G thermostat connections
at the fall coil control
accessory

device

board.

signal

The User Interface

by ordering

a shutdown

will respond
of the indoor

to the
and

LED

system

harness

prior to assuming

a component

failure.

Description:

user

interface

text

with

basic

instructions.
Careful use of information
displayed
need for extensive manual troubleshooting.

troubleshooting
will reduce

the

The amber LED located at bottom center of control adjacent to
motor harness plug is motor status LED and it is labeled MOTOR.
A second amber LED located ill upper right center of control
adjacent to System Communications
connector
(A,B,C,D)
is the
System Status LED and it is labeled STATUS. The green LED
labeled
10

COMM

also

located

adjacent

System

Communications
connector,
below
STATUS
LED.andisused
as
anindicator
ofsystem
communications
status.
Status
Codes
willbe
displayed
ontheSTATUS
LEDusing
thefollowing
protocol:
1.Thenumber
ofshort
flashes
indicates
firstdigitofcode.
2.Thenumber
oflongflashes
indicates
second
digitofcode.
3.A shortflashis0.25seconds
on.A longflashis1 second
on.

4. The time between

flashes

5. The time between
second.

non-communicating

flash

and the R. C. Y, O, W outdoor

If COMM LED does not light within
Code is not displayed:
1. Check system transformer
the system is powered.

and first long flash

is 1

2. Check

before

repeating

Code
LED.

16,
No

code.

check

system

and Status

high and low voltage

to be sure

to be sure it is not blown.

wiring

before

replacing

LED does not light within

it to be

sure a short does not cause a failure of replacement
If COMM

proper time period

fuse on fan coil control

fuse is open,
6. The LED will be off for 2.5 seconds

unit

further fan coil troubleshooting
information will be available
user interface until communications
are re-established.

is 0.25 seconds.

last short

outdoor

unit terminal strip connections
and will display Status
System
Communication
Fault,
on amber STATUS

fuse.

proper time period

and Status

Code is displayed:
Check

system

wiring

to be sure

user

interface

is powered

and

connections
are made A to A, B to B, etc. and wiring
is not
shorted. Mis-wiring
or shorting
of the ABCD communications
wiring

will not allow successful

NOTE:
not
S[(

S_(

Shorting

cause

communications.

or mis-wiring

damage

cause low voltage

fuse to open.

C. ECM

Troubleshooting

Motor

low voltage

to fan coil

control

system

or user

wiring

will

but

may

interface

The ECM motor used in this product consists of two parts: the
Control Module and the motor winding
section. Do not assume
motor or module
is defective
if it will not start. Use the
designed-in
LED information
aids and follow troubleshooting
steps described below before replacing motor Control Module or
entire

motor.

part.
VERIFY

Motor

MOTOR

Control

Module

WINDING

ELECTRICAL

SHOCK

is available

as a replacement

SECTION:

HAZARD

Failure to follow this warning could result in personal
or possible equipment damage.

injury

After disconnecting
power from the ECM motor, wait at least
5 minutes
before removing
the control
section.
Internal
capacitors require time to discharge.

Before proceeding
1. Check

motor

to replace

a motor

Control

winding

section

to be sure it is functional.

Module:

2. Remove motor Control Module section and unplug winding
plug. Motor shaft should turn freely, resistance between any
two motor leads should be similar and resistance between
DD

D 1

any motor lead
100,000 ohms.

_°

and unpainted

motor

end

should

exceed

MOtOR

3. Failing

Fig. 15 - Detail

of FE4A, FESA Printed
Board Connections

Circuit

Start-Up

COMM

power

up,

green

and
LED

System
will

Communications

turned

off

any time. communications
are not successful
for a period
exceeding
2 minutes, fan coil control will only allow emergency
cooling

operation

using

a common

entire

thermostat,

ECM

motor

must

be re-

Control

Module

alone can be

SLOWLY:
loading

of blower

while

access panel is

removed will cause blower to run slowly. Particularly at low
airflow requests. This is normal, do not assume a fault exists.

until

continuously
on until a request for operating mode is received. The
STATUS LED will be on any time fan coil is in idle mode. If. at

TURNS

1. Low static pressure

successful
system communications
are established
(this should
happen
within
10 seconds).
Once communications
with user
interface are successful,
COMM LED will be lit and held on. At
the same time, amber STATUS
LED will be lit and held

heating

tests,

4. Passing all of the tests, motor
replaced.
MOTOR

B. Fan Coil Control
Troubleshooting:

any of these

placed.

A07122

2. Recheck airflow and system static pressure using user interface service screens with access panel in place.
NOTE:

Blower

operation.
long

motor

faults

Fan coil control

as user

interface

will not cause

will attempt

maintains

a demand

control will not operate electric heaters
exists. The fan coil control communicates

a lockout

to run the blower
for airflow.

of blower
motor
Fan

as
coil

while a fault condition
with the motor at least

onceevery5 seconds,
evenwhenthemotoris idle.If. during
operation,
thefancoilcontrol
doesnotconmmnicate
withthe
motor
formorethan25seconds,
themotor
will shutitselfdown
andwaitforcommunications
tobereestablished.
D. Using Motor

LED in Troubleshooting

The
MOTOR
communication

LED
is
line and

microprocessor
operation
and

connected
to
the
blower
works
with
the fan coil

and the STATUS
LED
troubleshooting
information.

to provide
When the

fan coil
motor is

is commanded

If the MOTOR

to stop, the MOTOR

LED

is lit, flashing

LED will be turned

and the motor

the MOTOR
LED is off and the motor
normal and no motor fault exists.

is running

is stopped,

off.
or if

operation

If the MOTOR LED is lit. flashing and the motor does not run, or
if the MOTOR
LED is off and the motor is running, check the
STATUS LED for the Status Code. Refer to the troubleshooting
instructions
for the indicated Status Code in Section E, Fan Coil
Troubleshooting.
E. Fan
STATUS
provided

2. Check

indicated

flashing

codes

on the amber

system

LED can be resolved using troubleshooting
information
below. Codes are listed in order of their priority, highest

STATUS

CODE

45, CONTROL

BOARD

TEST

faults,

OUTPUT

Disconnect
continues

heater wiring
mation.

The

CODE

MOTOR

communication
microprocessor

heater

1. If motor

LED
line

is
and

and STATUS

connected
works

with

the
the

LED to provide

blower

motor

coil

control

fan coil operation

and troubleshooting
information. When motor is commanded to
operate, the MOTOR
LED will be turned on and will flash each
time instructions are sent to the motor.
When the motor is commanded
to stop, the MOTOR
turned
off. The MOTOR
LED will not flash
communications

when it is turned

LED will be
to indicate

acknowledge
receipt of communications,
the control will display
Status
Code 44 on STATUS
LED and continue
to try to
communicate
with
the
motor.
If
motor
acknowledges
communication.
Status Code will be cleared.
LED is lit and flashing

and motor

in Section

C. ECM

harness

LED

is indicating

at the fan
is good

coil

a Status

control.

and Control

If motor
Module

25,

INVALID

fan coil control

MOTOR

shall poll motor

Status

Code

MODEL

for its size data
memory.

for fan coil size or fan coil size data
25 will

be displayed

on STATUS

size data is missing

(as is the case when

3. If motor

for model

size motor.

spond to operation
resolved.

requests

STATUS
On

size is incorrect

placed with proper

CODE

initial

27, INVALID

power-up,

outdoor
unit
communicating

size as
system.

1. If outdoor

fan

coil

provided

size, motor

must be re-

Fan coil control
until

will not re-

this fault

condition

OUTDOOR

UNIT

SIZE:

control

write

into

unit size is invalid,

on STATUS

a replace-

system User Interface will
model size from a list of

will
User

Interface

Status

Code

memory
a fully

27 will be dis-

LED.

2. User Interface will prompt the installer to choose
list of valid sizes for application with fan coil.

size from a

3. Check communications
wiring to be sure User Interface has
established
communications
with outdoor
unit or select
proper

size from valid size list provided

at User Interface.

4. Check motor and motor Control Module following
structions in Section C. ECM Motor Troubleshooting.
STATUS
On

CODE

initial

electric

26, INVALID

power-up,

heater

fan

coil

size as read from

HEATER
control
heater

the in-

SIZE:
will

write

if heater

into

memory

is provided

with

Identifier Resistor (IDR). Heater size must be valid for combination
of indoor and outdoor components
installed. Fan coil control will
read IDR value connected
to pins 5 and 8 of heater harness
connector.
If no resistor is found,
system User Interface
will
prompt installer to verify that no heater is installed. Verifying that
this is correct will establish that fan coil is operating without
an

off.

Fan coil control is constantly comnmnicating
with the motor, even
when the motor and MOTOR
LED are off. If motor does not

If MOTOR

instructions

ment fan coil control is installed),
prompt installer to enter correct
valid sizes.

FAULT:

fan

the

size is incorrect

is invalid,
LED.

2 and check

COMMUNICATION

at pins 1 (+) and

to fan coil control.

and check fan coil size data stored in fan coil control

for faults. See Status Code 36 for more infor-

44, MOTOR

to motor

circuit

may need replacement.

On initial start-up,

and check heat-

at plug/receptacle

complies

of the low voltage motor harness wiring
to fan coil control or to motor Control

the motor

STATUS
CODE
SELECTION:

outputs.

electric

supply

connection

to run, fan coil control

played

er stage 24VAC

header

for proper

to be sure all wiring

If the MOTOR
LED is off, STATUS
Code 44 and motor is running:

To find the fault:

STATUS

12 Vdc low voltage

Shorted or mis-wiring
will not cause damage
Module.

"ON"

blower motor to supply an airflow determined
to be safe for current
operation mode with electric heaters energized.

2. Disconnect

harness

Control
Module following
Motor Troubleshooting.

and it is not supplying
signal, Status Code 37 will be displayed on
STATUS LED. Fan coil control will turn off output and command

at User Interface

LED is indicating

Fan coil control is provided with circuitry to detect presence of a
24VAC signal on Electric Heater stage 1 and stage 2 outputs. If fan
coil control detects a 24VAC signal on either heater stage output

1. Stop all system operations

If STATUS

If all checks are normal, fan coil control is good and Control
Module on motor may need replacement.
Check motor and Motor

FAULT:

SENSED

wiring

2 (-) of motor

2. If model

Fan coil control has failed internal start-up
tests and must
replaced. No other service procedure will correct.
STATUS
CODE
37, HEATER
WHEN NOT ENERGIZED:

motor

3. Check

to lowest. Though multiple faults can exist at any time. only the
highest priority code will be displayed on STATUS LED. Clearing
the indicated fault when multiple faults exist will cause the next
highest priority Status Code to be flashed. All existing
well as a fault history, can be viewed at user interface.

LED.

with wiring diagram description,
makes a complete
from connector to connector and is not shorted.

motor

Coil Troubleshooting

Fan coil faults

the STATUS

Status 44 code, check the motor wiring harness
connection to control and motor receptacles.

motor
control

commanded
to operate, the MOTOR LED will be turned on and
will flash each tinm instructions
are sent to the motor. When the
motor

1. Check

does not run:

electric heater accessory. Upon choosing negative option, installer
will be prompted to select heater size installed from a list of valid
heater sizes for fan coil and outdoor unit size installed. If heater ID
resistor value read is invalid. Status Code 26 will be displayed on
STATUS
LED. If heater installed is equipped
with a resistor
connected
to pins 5 and 8 of heater harness
Code 26 is displayed on STATUS LED:

connector

and Status

1.Check
wiringharness
connections
tobesureconnections Check system wiring to be sure the User Interface is powered and
aresecure.
connections
are made A to A. B to B, etc. and wiring
is not
shorted.
Mis-wiring
or
shorting
of
the
ABCD
communications
2.If symptoms
persist,
disconnect
wiringharness
atfancoil
Correcting
control
heater
header
andcheck
foraresistance
value
great- wiring will not allow successful communications.
wiring faults will clear the code and reestablish communications.
erthan5000ohms.
Shorting or mis-wiring
the low voltage system wiring will not
3.Check
forproper
wiringofresistor
assembly.
cause damage to fan coil control or to User Interface but may cause
4.Make
sureheater
sizeinstalled
isanapproved
sizeforoutthe low voltage fuse to open.
doorunitandfancoilsizes
installed.
STATUS (;ODE 46, BROWNOUT
CONDITION:
NOTE:Fancoilcontrol
willnotoperate
electric
heater
untilthis
If
the
secondary
voltage
of
the
transformer
falls below 15VAC for
Status
Code
isresolved.
If theheater
sizeissetthrough
theUser
a period exceeding 4 seconds. Status Code 46 will be displayed on
Interface,
theheater
willbeoperated
asa single
stage
heater.
If
STATUS LED. If system includes a non-communicating
outdoor
staging
isdesired,
theIDRvalue
mustberead
inbythefancoil
air conditioner
or heat pump, the User Interface will command the
control.
fan coil to turn off Y output controlling compressor.
STATUS
(;ODE36, HEATER OUTPUT NOT SENSED
When secondary
voltage
rises above 17VAC for more than 4
WHEN

ENERGIZED:

seconds,

the brownout

Fan coil control is provided with circuitry to detect presence of a
24VAC signal on Electric Heater stage 1 and stage 2 outputs. If fan

operation
will
delay function

coil control energizes
either heater stage and does not detect the
24VAC signal on output, Status Code 36 will be displayed on the
STATUS LED Fan coil control will continue
to energize heater

blower

output(s)

and adjust

energized electric
To find the fault:

blower

operation

to a safe airflow

level

for 24VAC

sensing

circuit may be bad.

NOTE:

It may be useful

stage

outputs.

as an electric

Fan

coil control

heater

and

normal

system

compressor
off
does not affect

heater operation.

CODE
FAULT:

53,

OUTDOOR

If an OAT sensor is found

on heater

is cleared

AIR

TEMPERATURE

for

heat stage(s).

Check

or electric

STATUS
SENSOR

condition

resume subject to any minimum
which may be in effect. Brownout

at power-up,

input is constantly

to be within a valid temperature
range. If sensor
open or shorted at any time after initial validation,
will be displayed at amber STATUS LED.
Check for faults in wiring connecting
Using an Ohmmeter,
check resistance

troubleshooting

checked

is found to be
Status Code 53

sensor to OAT terminals.
of thermistor for a short or

procedure to disconnect the system communications
to force Status
Code 16 enabling of emergency
heat mode. It is difficult to know

open condition.
If thermistor is shorted or open, replace it to return
the system
to normal
operation.
If fault is in the wiring

which

connections,
correcting
the fault will clear the code and return
system to normal operation.

heater

operation.

output

is energized

When fan coil is operated

electric

heaters,

together.

Terminal

both

outputs

not

are

energized

strip inputs to control

to W to turn on both electric
circuits can then be checked

energized

in emergency

in normal

heat mode using
and

de-energized

NOTE:

can then be connected

heat outputs. Heater output sensing
to resolve Status Code 36 or 37

problems.
STATUS

(;ODE

41, BLOWER

MOTOR

LED is lit and flashing

1. Check STATUS
Code 41. motor

FAULT:

and motor

within

30 seconds

does not run:

of being commanded

to run or that the motor has been slowed to below 250 rpm
for more than 10 seconds after coming up to speed. Motor
wiring harness
do not replace.

and fan coil control

2. Check to be sure that the blower
housing.
3. Check

motor

are operating
wheel

properly,

is not rubbing

next power-up

but the fault will remain

the

Emergency

shaft is not seized

(motor Control Module must be removed
and electronics
disconnected
from windings to perform this check propermotor windings
section following
C. ECM Motor Troubleshooting.

If all these checks

are normal,

the motor

Control

instructions
Module

may need

replacement.
(;ODE

16, SYSTEM

COMMUNICATION

FAULT:

On initial power-up
and at any time system communications
are
not successful
for a period
exceeding
2 minutes
following
successful
communications,
the fan coil control will only allow
heating
or cooling
a non-communicating

outdoor unit terminal
code 16 on the amber

operation
using
a common
outdoor unit, and the RGWYO

strip connections
and will
STATUS LED (see section

display Status
E. Emergency

Heating and Cooling Modes). No further fan coil troubleshooting
information
will
be available
at the User
Interface
until
communications

are reestablished.

thermistor

or a wiring

and system

is because

between

and Cooling

can provide

operation

on power-up,

will

the fan

an open sensor

coil

or if a

Modes

emergency

heating

or cooling

using a

common heat/cool thermostat in the event that there are no system
communications,
fault is in User Interface and no replacement
is
immediately
To activate

available.
these modes,

wired as a common
RGWYOC
terminals.
These

the thermostat

emergency

10 --

and outdoor

heating/cooling
modes

comfort and efficiency expected
be activated when User Interface
Procedure

ly).
4. Check
Section

This

Heating

Fan coil control

NOTE:

to be sure that the motor

is an open

control cannot discern the difference
sensor is not installed.

LED. If STATUS LED is indicating Status
control has detected that the motor will not

come up to speed

emergency
thermostat,

condition

problem that appears to be an open thermistor and the power to the
fan coil control is cycled off. the fault code will be cleared on the
not be as expected.

If MOTOR

STATUS

If fault

the

FE4A,

system
do

not

unit must

to fan
provide

coil

control

the level

by the consumer and should only
cannot be replaced immediately.

FESA

Fan

Coil

Sequence

Operation
The FE4A. FE5A Fan Coil is designed
for installation
with a
communicating
User Interface. This fan coil will not respond to
commands
provided by a common thermostat
emergency
situations
described
in Procedure
Troubleshooting.

except under certain
9 - Start Up and

The User Interface
uses temperature:
humidity
and
supplied from indoor and outdoor system components

other data
to control

heating or cooling system for optimum
comfort. The fan coil will
be commanded
by User Interface to supply airflow and, in the case
of a non-communicating
outdoor unit, Air Conditioner
or Heat
Pump control. The fan coil will operate blower at requested airflow
for most modes.
The nominal requested airflow will be 350 cfm per ton of nominal
cooling capacity
as defined by outdoor unit size. Actual airflow
13

request
willbeadjusted
fromnominal
usingindoor
andoutdoor
temperature
andindoorhumidity
datato optimize
thesystem
operation
foroccupant
comfort
andsystem
efficiency.
Refer
to
User
Interface
literature
forfurther
system
control
details.
Airflowduringelectric
heater
operation
mustbegreater
thana
minimum
levelforsafeoperation.
If UserInterface
instructs
fan
coiltoturnonelectric
heatandtherequested
airflowislessthan
theminimum
value
required
forsafeoperation
ofinstalled
heater,
thefancoilcontrol
willoverride
requested
valuewiththevalue
shown
inTable
2,FE4A.
FE5AFanCoilAirflowDelivery
Chart
-- Electric
Heating
Modes.
CARE

AND

The minimum
follows:
1. Inspect
quired.

SHOCK

4. Inspect electrical
proper operation

Disconnect

each heating

connections
for tightness and controls for
each heating and cooling season. Service

Fan

distributor

Coil

Service

for maintenance

Manual

available

from

equipment

procedures.

is filter maintenance.

HAZARD

this warning

all power

or as re-

as necessary.
Consult

Failure
Failure to follow
or death.

air filter each month

are as

plastic plug to inspect.

CUT
ELECTRICAL

and clean or replace

for this equipment

3. Inspect blower motor and wheel for cleanliness
and cooling season. Clean as necessary.

MAINTENANCE

by the consumer

requirements

2. Inspect cooling coil. drain pan, and condensate
drain each
cooling season for cleanliness.
Clean as necessary.
An inspection port is provided on all A-coil delta plates. Remove

For continuing
high performance,
and to minimize
possible
equipment
failure, it is essential
that periodic
maintenance
be
performed
on this equipment.
Tire only required maintenance
that
may be performed

maintenance

could result

to unit before

in personal

servicing

injury

field wires

to follow

this caution

may result in personal

Sheet metal parts may have sharp edges
and wear appropriate
protective
clothing
handling parts.

injury.

or burrs. Use care
and gloves when

removing
control package. The disconnect
(when used) on
access panel does not disconnect
power to the line side of
disconnect,
but does allow safe service to all other parts of
unit. If unit does not have a disconnect,
disregard
the
foregoing.
Instead, make sure that a disconnecting
means is
within sight from. and is readily accessible
Disconnect
all electrical power to unit before
maintenance
or service on it.

Table
MODEL FE4A

2 - FE4A/FESA

OUTDOOR

OO2

OO3

OO5

MODEL FE5A

from, the unit.
performing
any

Fan

('oil Airflow

UNIT CAPACITY BTUH

OUTDOOR

Chart

(CFM)

ELECTRIC

Electric

Heating

Models

HEATER kWRANGE

EMERGENCY
18,000
24,000
30,000
36,000

625
625
650
800
975

625
625
725
875
975

675
675
775
875
975

775

950

900
925
1025

1125
1125

EMERGENCY
24,000
30,000
36,000
42,000

675
675
800
975
1125

700
875
875
975
1125

775
875
875
1025
1125

850
1100
1100
1150
1150

1050
1150
1150
1250
1350

EMERGENCY
30,000
36,000
42,000
48,000

675
800
975
1125
1305

700
875
975
1125
1305

775
875
1025
1125
1305

850
1100
1150
1150
1305

EMERGENCY

1050
1050
1125
1300
1625

1050
1100
1150
1300
1625

1050
1350
1350
1350
1625

ELECTRIC

UNIT CAPACITY BTUH
EMERGENCY

OO4

Delivery

36,000
42,000
48,000
60,000

006

Using the Owner's/User
Manual
furnished
in outdoor
unit, the
installing
technician
should
explain
system
operation
to the
consumer
with particular
emphasis
on indoor fan coil operation
sounds and filter maintenance.

24,000
30,000
36,000
42000

Note 1 : Emergency - Air conditioner with electric heater application,
Note 2: These airflows are minimum airflows as UL listed.
Note 3: Dashed entry indicates that the heater/fan coil/outdoor

1050
1150
1250
1250
1350

1400

1425

1500

1600

1125
1350
1350
1500
1750

1750

1750
1750

HEATER kWRANGE

675
975
1050
1050
1125

775
975
1050
1050
1125

775
975
1100
1100
1150

900

1125

1125
1350
1350

1350
1350

or emergency

unit combination

heat,

is not approved.

Do not apply.

PURON®

•

Puron

refrigerant

components
•

Puron

•

Recovery

•

Puron

operates

are designed

refrigerant

cylinders

cylinder

systems

into suction

percent

should

pressures

than R-22.

REFERENCE

line with compressor

Manifold

Use hoses with 700 psig service

•

Leak detectors

•

Puron

•

Vacuum

•

Do not use liquid-line

•

Do not leave Puron refrigerant

•

Do not install a suction-line

•

POE oils absorb

•

POE oils may cause damage

•

Wrap all filter driers and service valves

•

A factory

•

Do NOT use an R-22

should

pumps

pressure

be designed

will not remove

approved

and replacement

type metering

device in the manifold

hose

operating
retard.

rating.

to detect HFC refrigerant.

as with other HFCs, is only compatible
moisture

suction

with POE oils.

from oil.

filter driers with rated working

moisture

equipment

or DOT BW400.

Use a commercial

sets should be 700 psig high side and 180 psig low side with 550 psig low-side

refrigerant,

GUIDE

Be sure that servicing

rating must be 400 psig, DOT 4BA400
be charged with liquid refrigerant.

•

If indoor

higher

QUICK

are rose colored.

•

REFRIGERANT

with Puron refrigerant

service pressure

refrigerant

when charging

at 50-70

to operate

(R-410A)

pressures

less than 600 psig.

line filter driers in line longer

than 72 hours.

filter drier in liquid line.
rapidly.

Do not expose

to certain plastics

liquid-line

oil to atmosphere.

and roofing

materials.

with wet cloth when brazing.

filter drier is required

on every unit.

TXV.

unit is equipped

with an R-22

TXV or piston metering

device, it must be changed

to a hard shutoff

Puron

refrigerant

TXV.
•
•

Never open system to atmosphere
When

system must be opened

driers. Evacuate

to 500 microns
refrigerant

for service,

recover

a vacuum.
refrigerant,

evacuate

then break vacuum

with dry nitrogen

prior to recharging.

•

Do not vent Puron

•

Do not use capillary

•

Observe

•

All indoor coils must be installed

all warnings,

while it is under

into the atmosphere.

tube coils.
cautions,

and bold text.
with a hard shutoff

Puron

refrigerant

TXV metering

device.

and replace filter

2007 CAC / BDP •

Manufacturer

reserves

7310 W. Morris

St. •

Indianapolis,

iN 46231

the right to change_ at any time_ specifications

Printed
and designs

without

in USA.
notice

Edition

and without

obligations.

Date:

03/07

Catalol_ No: IM-FE4A-03
Replaces:

IM FE4A

Source Exif Data:

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File Type Extension             : pdf
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Page Layout                     : SinglePage
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Title                           : 
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Carrier FE4ANB006000 User Manual FAN COIL Manuals And Guides L0704480

CARRIER Air Handler (indoor blower&evap) Manual L0704480 CARRIER Air Handler (indoor blower&evap) Owner's Manual, CARRIER Air Handler (indoor blower&evap) installation guides

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