Carrier FV4BNB006000 User Manual FAN COIL Manuals And Guides L0411151

CARRIER Air Handler (indoor blower&evap) Manual L0411151 CARRIER Air Handler (indoor blower&evap) Owner's Manual, CARRIER Air Handler (indoor blower&evap) installation guides

User Manual: Carrier FV4BNB006000 FV4BNB006000 CARRIER FAN COIL - Manuals and Guides View the owners manual for your CARRIER FAN COIL #FV4BNB006000. Home:Heating & Cooling Parts:Carrier Parts:Carrier FAN COIL Manual

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Installation

Instructions
FV4B

Fan Coil for Puron® Refrigerant
002,003, 005, 006

A98023

Fig. l--Model

NOTE:

FV4B

Read the entire instruction manual before starting the installation.

This symbol -_ indicates a change since the last issue.
SAFETY CONSIDERATIONS
hnproper installation,
adjustment,
cause personal injury or property

alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other conditions which may
damage. Consult a qualified installer, service agency, or your distributor
or branch for information
or assistance.

The qualified installer or agency must use fi_ctolT-authorized
packaged
with kits or accessories
when installing.
Follow

all safety

codes.

Wear safety

glasses

these instrnctions
thoroughly
and follow
(NEC) for special requirements.

and work gloves.

all warnings

identifies

the signal

words

the most serious

Form:

IM-FV4B-02

DANGER,

hazards

symbol

WARNING,

which will result

Cancels:

Use quenching

or cautions

Recognize safety information.
This is the safety-alert
the potential
for personal inju W.
Understand

kits or accessories

attached

z_ • When

CAUTION,

in severe personal

IM-FV4B-01

when modifying

this product.

cloth for brazing

operations.

to the unit. Consult

you see this symbol

and NOTE.
injury

These

or death.

Printed in U.S.A.

Refer to the individual

Have fire extinguisher

local building

codes

and National

instructions

available.

Read

Electrical

Code

on the unit and in instructions

manuals,

be alert to

are used

symbol.

DANGER

words

WARNING

with

signifies

6-03

the safety-alert

hazards

which could

Catalog No.

result in personal

63FV-4B1

injury or death. CAUTION
is used to identi_ unsafe practices which would
is used to highlight
suggestions
which will result in enhanced
installation,

result in minor personal injury or product
reliability,
or operation.

and property

damage.

NOTE

z_x WARNING:
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 can cause personal injury or death.

INTRODUCTION
Model FV4B Fan Coil units are designed for flexibility and can be used for upflow, horizontal, or downflow (kits required and manufactured and
mobile home) applications. These units are designed specifically for Puron (R-410A) and must be used only with Puron air conditioners and heat
pumps as shipped.
These units are designed to meet the low air leak requirements currently in effect. Because of this, the units need special attention in the condensate
pan and drain connection area and when brazing tubing.
These units are available lbr application in systems of 24,000 through 60,000 Btuh nominal cooling capacities. Factory-authorized,
electric heater packages are available in 5 through 30 kw. See Product Data for available accessory kits.

field-installed

INSTALLATION
PROCEDURE

1--CHECK

Unpack

unit

Inspect

equipment

plate

and move

which

to final location.

for damage

contains

PROCEDURE
Unit

EQUIPMENT

proper

installation

2--MOUNT

can stand

FAN

o1" lie on floor,

IMPORTANT:

Remove

carton

prior to installation.

taking

care not to damage

File claim

information.

Check

with shipping

rating

unit.

company

if shipment

plate to be sure unit matches

is damaged
job

or incomplete.

Locate

unit rating

specifications.

COIL

o1"hang

from

When unit is installed

ceiling

o1"wall.

Allow

space

ceiling

and/or

living area, building

over a finished

pan to be installed under the entire unit. Some
codes for additional restrictions
or precautions.
When installing any fan coil over a finished
ceiling is recommended.

localities

ceiling

may allow

and/or

living

for wiring,

the alterative

piping,

of running

area, installation

and servicing

codes may require
a separate,

of a secondary

unit.
a field-supplied

secondary

condensate

drain pan under

entire

condensate

line. Consult

local

unit to avoid damage

FV4B Fan Coils can be installed lbr upflow and horizontal-left
applications
as _actory shipped. (See Fig. 2, 4 and 8.) Units can be installed for
horizontal-right
applications
with field modifications.
Units may be converted for downflow
applications
using _actory-authorized
accessory kits.
NOTE:
A.

To ensure

Upflow

It" return
Only

proper

for horizontal

installations,

unit must

Modular

install

opening

duct flush with floor.

provided.

All return

Set unit

air nmst pass through

top section

from lower

To reassemble,
Horizontal

i. Arrange

above

suspending

Gasket

with all applicable

the coil. (See Fig. 2.)

construction

allows

installer

to disassemble

unit into 2 components,

coil box

2 screws which secure brackets. (See Fig. 3.) Remove either 2 screws in each fi'ont
all 4 screws in each corner. (See Fig. 3.) Sections may now be separated by lifting

to reinstall

Conversion

kit number

2. Remove

screw

3. Remove

coil assembly.

securing

_an coil on its right
coil to casing

dimples

all fasteners

when

reassembling.

8. Reinstall
sure liquid

from

access

kit KFAHD

panels

and suction

Slope

proper

of a secondary

condensate

pan.

pan.
location

of screws

for mounting

metal

support

straps.

removed

slope coil conversion

to maintain

low air leakdow

sweat

(See Fig. 5.)

side casing

door is properly

installation

flange.

with condensate
coil mounting

seated

pan down.

(See Fig. 5.)

screw.

on the fitting

door to retain

the low air leak rating

of the unit.

per kit instructions.

and fitting

panel,

tube grommets

aligning

are in place

(See Fig. 4.)

Coils

for horizontal

coil assembly

using previously

sure the pan cap in the fitting

7. Add gaskets

to right

condensate

indicate

and fitting panel.

side and reinstall

flange

that may require

secondary

is required

panels

coil assembly

codes

in casing

of Units with

KFAHD0101SLP

and coil access

building

it in or above

unit t'rom ceiling

blower

5. Attach

Be certain

for unit by setting

i. Remove

Make

procedure.

complies

Horizontal-Right

6. Make

of unit.

Installations

support

2. When

4. Lay

and width

section.

reverse

Be sure installation

NOTE:

i/8 in. level of the length

Units

To disassemble
unit, remove rear comer brackets by removing
corner of coil box, or 2 screws in blower box. Do not remove

so it is within

on floor over opening.

The FV4B Fan ('oil in size 006 is a 2-piece modular unit. Modular
and blower box, for ease of installation.
(See Fig. 3.)

be installed

Installation

air is to be ducted,

use return-air

drainage

holes

with tubing

to prevent

connections

and condensate

air leaks and cabinet
2

sweating.

pan connections.

Install

grommets

after

brazing.

pertbrmance.

POWER

__(S

ENTRY --&

FIELD SUPPLIED
SUPPLY DUCT

OPTIONS

.....
002-005 21-IN.
006 24-1N. FRONT SERVICE
CLEARANCE

UNIT
003

19AIn.

UPFLOW/_

FIELD MODIFIED

PRIMA_
A

SIDE RETURN
LOCATION FOR
SLOPE COIL
UNITS ONLY

UPFLOW/DOWNFLOW
SECONDARY DRAIN

UPFLOW/DOWNFLOW
PRIMARY DRAIN

FIELD SUPPLIED
RETURN PLENUM

A00091

Fig. 2--Slope

Coil Unit in Upflow Application

[
EWS

BRACKET

A95293

Fig. 3--Modular
E.

Horizontal

To convert

units

Right

Conversion

for horizontal

1. Remove

blower

2. Remove

metal

3. Remove

2 snap-in

and coil access
clip securing

horizontal

panels.

fitting

clips securing

&ain

With

Unit

Assembly

A-Coil

right installations:

4. Slide coil and pan assembly
5. Remove

of Units

(See Fig. 6.)

panel to condensate
A-coil

pan. Remove

fitting panel.

in unit.

out of unit.

pan support

bracket

from coil support

rail on left side of unit and reinstall
3

on coil support

rail on right side of unit.

RIMARY
DRAIN

FIELD

I I

006 24qN
FRONT SERVICE
002-005 21-IN.
CLEARANCE
(FULL FACE
OF UNIT)

LOW VOLT
ENTRY
OPTIONS

1 3/4 IN
FILTER ACCESS
CLEARANCE
PRIMARY
DRAIN
SECONDARY
DRAIN
POWER
ENTRY OPTIONS
A00096

Fig. 4---Slope

Coil in Horizontal-Left

Application

(Factory

COIL MOUNTING

Ready)
BLOWER
ASSEMBLY

COIL
SUPPORT
RAIL

SLOPE COIL
SKI

DRAINPAN

REFRIGERANT
CONNECTIONS
SECONDARY

DRAIN
A03001

Fig. 5--Slope

Coil in Horizontal Right Application

6. Convert air-seal assembly for horizontal right.
a. Remove air-seal assembly from coil by removing 4 screws. (See Fig. 6.)
b. Remove air splitter (B) from coil seal assembly by removing 3 screws. (See Fig. 6-_actory-shipped
c. Remove filler plate (A) and install air splitter (B) in place of filler plate.
d. Install filler plate (A) as shown in horizontal right application.
e. Remove condensate troughs ((7) and install on opposite tube sheets.
f. Install hose onto plastic spout.
7. Install horizontal pan on right side of coil assembly.
4

inset.)

CONNECTIONS
*_

HORIZONTAL
RIGHT
APPLICATION

SUPPORT
RAIL

BRACKET

DRAIN
SUPPORT
BRACKET
SUPPORT
RAiL

BRACKET
DRAIN PAN
PRIMARY
HORIZONTAL

RIGHT

SECONDARY
HORIZONTAL

DRAIN
RIGHT
A00071

Fig. 6--A-Coil
8. Slide coil assembly
9. Reinstall

2 snap-in

to secure

11. Remove

insulation

12. Remove

2 oval coil access

panel

plugs

pan fitting caps (from

access

between

fitting

sure liquid
Downflow

and secure

of vertical

coil assembly

left side of the coil, access

on right

side of the coil door. Make

14. Reinstall

Make

caps from

knockouts

condensate

position

on each corner

Application
pan engages

coil support

in unit. Be sure clip with large

rails.

of I;et is used on right side of unit

pan.

two oval fitting

back

Be sure coil bracket

clips to con'ectly

horizontal

i0. Remove

13. Install

into casing.

in Horizontal-Right

and fitting
panel

and reinstall

panels,

on left side of coil access

Step 10) in the right side of the coil door making

aligning

holes

condensate

tube grommets

and fitting panel.

panel

into holes

sure no insulation

and vertical

and suction

side of coil access

panel,

interferes
with tubing

with seating

panel

and fitting

panel.

sure that the cap snaps

and seats cleanly

on the

of the cap.

connections

and condensate

pan connections.

Be sure to reinstall

metal

clip

pan.

are in place

to prevent

air leaks

and cabinet

sweating.

Installations

z_
CAUTION: 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. Failure to follow this CAUTION could result in personal injury or product and property damage.
In this application,
field conversion
of the evaporator
is required using
resilient gasket, 1/8- to 1/4-in. thick, between duct, unit, and floor.
NOTE:

To convert

units lbr downflow

use kit Part No. KFADC0201SLP.
duct, unit, and floor.
NOTE:
G.

Gasket

kit number

Manufactured

applications,

KFAHD0101SLP

and Mobile

Home

be secured

2. Allow

of 24" clearance

a minimum

method

refer to Installation

is also required

b. If _an coil is against
self tapping

screws

Instructions

Housing

to the structure

of securing

using field-supplied

wall,

secure

supplied

with kit for proper

Use fireproof

applications

with an accessory

resilient

to maintain

base kit. Use fireproof

installation.

gasket,

For slope

1/8- to ii4-in,

low air leak.low

sweat

fan coils,

thick, between

performance.

hardware.

panels.
applications
coil using No. 10 self tapping

all slack, and _asten to wall stud of structure
fan coil to wall stud using

and to wall stud using

kit along

Applications

from access
lbr typical

for all downflow

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

downflow

For A fan coils use kit Part No. KFADC0401ACL.

l. Fan coil unit must

3. Recommended

accessory

5/16-in.

using

5/16-in.

1/8-in. thick right-angle

lag screws.

(See Fig. 7.)
5

screws.

lag screws.
brackets.

Angle

Typical
Attach

strap down and away from back

both

sides of _an coil.

brackets

to Pan coil using No.

4" MAX

SECURE
FANFROM
COILWALL
TO STRUCTURE
UNIT
AWAY
PIPE STRAP
(TYPICAL BOTH SIDES)

"'x

OR
UNIT AGAINST WALL
1/8-1N THICK ANGLE
MOUNTING BRACKET
(TYPICAL

SIDES)

BASE
(KFACB)
DOWNKIT
FLOW

BOTH

_._ SECURE UNITTO FLOOR
ANGLE BRACKETOR PIPE STRAP

t
PROCEDURE
Connect

3--AIR

supply-air

4" MAX

DUCTS

duct over outside

used,

and seal duct-to-unit

Duct

connection

flanges

A02003

of 3/4-in.

flange

Fig. 7--A-Coil

provided

on supply-air

opening.

Secure duct to flange with proper

fasteners

for type of duct

joint.
are provided

on unit air discharge

connection.

When using FV4B units with 20-, 24-, and 30-kw electric heaters, maintain a 1-in. clearance
from combustible
materials
ductwork
for a distance of 36 in. from unit. Use accessory
downflow
base to maintain proper clearance
on downflow

to discharge
installations.

Use flexible

use heat resistant

connectors

between

ductwork

for flexible connector between ductwork
covered with vapor ban'ier.
Ductwork
Acoustical
Treatment

and unit to prevent

transmission

and unit at discharge

of vibration.

connection.

Ductwork

When

electric

passing

through

heater is installed,
unconditioned

plenum

and

material

space nmst be insulated

and

Metal duct systems that do not have a 90 ° elbow and 10 ft of main duct to first branch takeoff may reqnire interual acoustical insulation lining.
As an alternative,
fibrous ductwork
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
or B as tested by UL Standard 181 for Class 1 air ducts.
PROCEDURE
4--ELECTRICAL
CONNECTIONS
On units with a factory
control
z_

installed

disconnect

with pull-out

removed,

WARNING:

Field wires

on the line side

Line-Voltage

service

with National

and maintenance

Fire Protection

can be safely performed

Association

Standards

90A

on only the load side of the

of the disconnect

If unit contains

an electric

i. Connect
2. Connect

heater,

remove

all factory

z_x

WARNING:

disconnect

wiring

switch.

WARNING:

electrical

and discard

in the fan coil unit remain

live, even

when
switch

the pull-out
(remote

power

plug from fan coil and connect

per unit wiring

Before
Turn

diagram

installing

components.

and inspect

or servicing

off accessory

If a disconnect

or refrigerant

male plug from heater to female plug from unit wiring

Instructions.)

208/230v
power leads from field disconnect
ground wire to unit ground lug.

Check

found

wiring
can not be performed
until the main disconnect
in electrical
shock
causing
personal
injury or death.

Connections

harness. (See Electric Heater Installation
For units without electric heat:

shall comply

package.

is removed.
Service
and maintenance
to incoming
the unit) is turned
off. Failure
to do so will result
A.

ductwork

heater

switch

to yellow
factory

system,
power

shock

wiring
always

if applicable.

is to be mounted

Electrical

and black

can

connections
turn

off

select

personal

leads.
to be sure none were

all

Electrical

on the unit,
cause

stripped

power
shock

to system.
can

a location
injury

loosened

cause

where

There
personal

drill

in transit
may

injury

or fastener

or installation.
more

than

or death.

will

not contact

or death.

NOTE:
Before proceeding
with electrical connections,
make certain that supply voltage, frequency, and phase are as specified on unit rating plate.
Be sure that electrical service provided by the utility is sufficient
to handle the additional
load imposed by this equipment.
See unit wiring label
for proper field high- and low-voltage
wiring. Make all electrical connections
in accordance
with NEC and any local codes or ordinances
that may
apply. Use copper wire only. The unit nmst have a separate branch electric circuit with a field-supplied
disconnect switch located within sight from,
and readily

accessible

from the unit.
6

FACTORY SHIPPED
HORIZONTAL
LEFT
APPLICATION

COIL
BRACKET

4_.
COIL
SUPPORT
RAIL
DRAIN PAN
SUPPORT
BRACKET

COIL
BRACKET

HORIZONTAL
DRAIN PAN

PRIMARY
AIR SEAL
ASSEMBLY

DRAIN

HORIZONTAL
LEFT
SECONDARY DRAIN
HORIZONTAL
LEFT
REFRIGERANT
CONNECTIONS
A00072

Fig. 8---A-Coil
B.

24-V

Control

System

Connections

in Horizontal

Left Application

to Unit Printed-Circuit

Board

(Factory

Ready)

(PCB)

Refer to unit wiring instructions
for recommended
wiring procedures.
Use No. 18 AWG color-coded,
insulated (35°C mininmm)
wires to make
low-voltage
connections
between thermostat
and unit. If thermostat
is located more than 100 ft from unit (as measured
along the low-voltage
wires), use No. 16 AWG color-coded,
insulated (35°C minimum)
staging is desired using outdoor thermostats
or Intelligent Heat
Connect
C.

low-voltage

Intelligent

leads

to thermostat

Heat Staging

and outdoor

unit.

wires. PCB is circuited for single-stage
heater operation.
Staging, remove Jnmper J2 on PCB to enable staging.

following

electric

NOTE:
wiring

system

low-voltage

A _actory-authorized

Class

require

disconnect

--_ D.

circuit

1701C 15, KFCEH

wiring

be routed

for installation

is protected
thermostat

through

l}om incoming

can be used as a disconnect.
on transformer
and connect

of transformer

1801 F20, KFCEH

1901 C20, KFCEH2101

F24, OR KFCEH2201F

conduit

power

of 0- through
Transformer
it to 208-v

by a 5-amp

splices

10-kw applications.

can be made

When electric

is fi_ctory wired for 230-v
terminal. (See Fig. 13.)

fuse mounted

with Intelligent

or raceways,

inside

the tim coil unit. All

leads.

on printed-circuit

operation.

heat packages
For 208-v

with circuit

applications,

board.

Heat Staging.

Housing

outdoor sensor can be used to lock out supplemental
is used, an outdoor thermostat may be reqnired.
Ground

breakers

disconnect

In manufactured
housing applications,
the Code of Federal Regulations,
Title 24, Chapter XX, Part 3280.714 requires that supplemental
heat be locked out at outdoor temperatures
above 40 deg. F. except for a heat pump defrost cycle. A corporate thermostat
in conjunction

30.

in Fig. 9, 10, 11, or 12.

thermostat

kit is available

Do not use outdoor

Manufactured

1501F 15, KFCEH

as shown

1 and must be separated

are installed, the circuit breaker
black wire l}om 230-v terminal

IMPORTANT:

KFCEH
wiring

local codes

must be NEC

The secondary

as a part of a single-speed
heat pump system using a
Control, or capable zoning control and any 1 of the

heat packages:

KF(TEH 1401N09,

Where

heater

(See Fig. 9, 10, 11, or 12.)

Heat staging of the electric heat package is possible when the FV4B is installed
2-speed programmable
thermostat
(model TSTATXXP2S01-B),
Thermidistat TM

Complete

additional

Option

Intelligent
corporate

Relay heaters

When

heat above

40 deg. F. Refer to thermostat

instructions

for details.

Ifa non-corporate

electric
with an
thermostat

Connections

z_ WARNING:
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.) Failure to follow this
warning could result in an electrical shock, fire, or death.
NOTE:

Use UL listed conduit

and conduit

connector

to connect

supply

wire(s)

to unit and obtain

proper

grounding.

If conduit

reducing washers, a separate ground wire must be used. Grounding
may also be accomplished
by using grounding
lug provided
Use of dual or multiple supply circuits will reqnire grounding
of each circuit to ground lugs provided on unit and heaters.
PROCEDURE

5--REFRIGERANT

TUBING

CONNECTION

tubing

to 500 microns

before

opening

in control

uses
box.

AND EVACUATION

Use accessory
tubing package or field-supplied
tubing of refrigerant
grade. Insulate entire
package has an insulated suction tube. Do not use damaged,
dirty, or contaminated
tubing
When tubing package is used and sweat connections
are made within 60 sec, coil and tubing
coil and field-supplied

connection

outdoor

unit service
7

valves.

suction tube if field-supplied
tubing is used. Tubing
because it may plug refrigerant
flow control device.
system does not require evacuation.
Ahvays evacuate

INDOOR

CONTROL

FAN

COiL

1-SPEED
AIR CONDITIONER

HEAT STAGE 2 F_....

4r_

REMOVE

JUMPER

N/A
D

FOR

HEAT

STAGING

HEAT STAGE 1 _.
COOL STAGE 1 D"

....

4i'_'_1

.B--

....

i"E_

FAN
24 VAC HOT

"-"
i REMOVE
L J1 JUMPER
_" FOR
_r DEHUMIDIFY

]
DEHUMIDIFY

F_"

....

F_-

.....
-----q4HUM'D'F'ER
J

24 VAC COMM
HUMIDIFY

FTI JM°DES

(24VAC) /

N/A
OUTDOOR
SENSOR

_I_"

"--

CONNECTIONLI

__4OUTDOORli_
SENSOR

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

I"
A98477

Fig. 9--FV4B

Fan Coil Wiring

INDOOR

CONTROL

with 1-Speed Air Conditioner
FAN

COIL

2-SPEED
AIR CONDITIONER

HEAT STAGE 2 F_

....

''_

HEAT STAGE 1

....

,.E_]_ _b_ FOR HEAT STAGING

REIk!OVEJ2JU!PER

....
°

COOL STAGE 1
COOL STAGE 2 F'_"
FAN
24 VAC HOT

REMOVE
]

....

DEHUMIDIFY E_

"J1 JUMPER

FOR

_r'DEHUMIDIFY
_1 MODES

I '-_

24 VAC COMM

__--q4HUMtDtF'ER
J

HUMIDIFY I-_'_-I..

(24VAC)

N/A

OUTDOOR
I--I q
"--

SENSOR

CONNECTIONLI

._,_4OUTDOORli_
SENSOR

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

_z f"
A98478

Fig.

CAUTION:

A brazing

shield

10--FV4B

MUST

damage
to the unit surface
and condensate
injury or product
and property
damage.

Units
i.

have sweat
Cut tubing

2. Insert

suction

and liquid

to correct

tube into

sweat

Fan Coil

used

when

pan fitting

robe connections.

Make

Wiring

tubing

caps.

suction

with

2-Speed

sets

Failure

are

Air

being

to follow

tube connection

Conditioner

brazed
this

to the

CAUTION

unit connections

could

result

in minor

prevent
personal

first.

length.
connection

on unit until

3. Braze connection
using silver bearing
Consult local code requirements.

it bottoms.

or non-silver

bearing

brazing

materials.

Do not use solder

(materials

which

melt

below

800°F).

FAN COIL

INDOOR CONTROL

....

RVS COOLING_
HEAT

STAGE

HEAT

STAGE

HEAT/COOL
STAGE

....

--_,

REMOVE
FOR
HEAT J2STAGING
JUMPER

....

1F_"

FAN
24 VAC

1-SPEED
HEAT PUMP

HOT

•-r DEHUMIDIFY
DEHUMIDIFY

24 VAC

....

..._

--_J MOiES

....

COMM

HUMIDIFY

____.q_I
HUM'D'F'ER
j
[
(24 VAC) p:___

F'_-,

RVS HEATING
OUTDOOR

__4OUTDOORli_
--SENSOR
.............

I--F_'

SENSOR

CONNECTIONLI s2 p
A98475

Fig, 11--FV4B

Fan Coil Wiring

INDOORCONTROL

with l-Speed
FANCOIL

Heat Pump

2-SPEED
HEATPUMP

-EEl

RVS COOLING

-El
4E}

HEAT/COOL
STAGE 1
HEAT STAGE 3 D
HEAT/COOL
STAGE 2

I
L--

FAN

-----I

I_
24 VAC HOT

---'I

DEHUMIDIFY

F_q
-FI
.42}
4_

:REMOVE J1FOR
DEHUMIDIFY
MODES

24VAC COMM

.__q4HUMID,FtER
__ J

HUMIDIFY

(24VAC)

RVS HEATING

OUTDOOR
I--F q.... _IOUTDOOR
1
SENSOR _

SENSOR

_-'7
J

CONNECTIONLI _z I
A02005

Fig. 12--FV4B

Z_
this

CAUTION:
CAUTION

4. Evacuate

Wrap
could

coil and tubing

PROCEDURE
To connect
disk. Clean

a wet cloth

result

system

6--CONDENSATE

drains the cap openings
the edge of the opening

the low leak rating

around

in minor

Fan Coil Wiring

rear of fitting

personal

to 500 microns

injury

with 2-Speed Puron Heat Pump

to prevent

or product

damage

and

using deep vacuum

property

to TXV and factory-made

joints.

Failure

to follow

damage.

method.

DRAIN
must be removed. Use a knife to start the opening near the tab and using pliers, pull the tab to remove the
if necessary
and install the condensate
line. Finally caulk around the lines where they exit the fitting to retain

of the unit.
9

BLK

Fig. 13 - Transformer

Connections
A94067

z_
CAUTION: 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. Failure to follow this CAUTION could result in minor personal injury or product and property damage.
Units

are equipped

with primary

and secondary

3/4-in.

FPT &ain connections.

To prevent property damage and achieve optinmm drainage performance,
properly-sized
condensate
traps. (See Fig. 14 and 16.) Factory-approved
unused condensate
drain fittings.
plus 1-1/2 turus. Use pipe dope.

It is recommended

that PVC fittings

For proper

condensate

line installation

BOTH primary and secondary
condensate
traps are available.
be used on the plastic

see Fig. 2, 4, 5, 6, and 8.

drain lines should be installed and include
Be sure to install plastic push-in plugs in

condensate

pan. Do not over-tighten.

Finger-tighten

z_
CAUTION: Shallow running traps are inadequate and DO NOT allow proper condensate drainage. (See Fig. 15.) Failure
to follow this CAUTION could result in minor personal injury or product and property damage.
NOTE:
When connecting
connecting
to drain pan.
NOTE:

If unit is located

should

be installed

condensate
in or above

underueath

drain

lines avoid

blocking

a living space where

the entire

filter

damage

unit, and a secondary

access

may result

condensate

panel.

Prime

both

from condensate

line (with

primary

overflow,

appropriate

and secondary
a field-supplied

trap) should

condensate
exterual

traps

after

condensate

pan

be run from the unit into the pan.

Any condensate
in this exterual condensate
localities may allow the use of a separate

pan should be drained to a noticeable place. As an alternative to using an exterual condensate
pan, some
3/4-in. condensate
line (with appropriate
trap) to a place where the condensate
will be noticeable.
The

owner of the structure
must be inlbrmed
servicing,
or water damage will occur.

that when

Install

traps in the condensate

to the condensate
living area.

flows

lines as close to the coil as possible.

pan to prevent

Condensate
drain lines should
or precautions.

condensate

be pitched

from overflowing

downward

from the secondary

(See Fig. 16.) Make

the &ain pan. Prime

at a minimum

of 1 in. for every

&ain

or external

sure that the outlet

condensate

of each trap is below

all traps, test for leaks,

and insulate

10 It. of length.

local codes

Consult

pan, the unit requires
its connection

traps if located
lbr additional

above

restrictions

z_
CAUTION: Never operate unit without a filter or with filter access door removed. Damage to blower motor or coil can
result. Failure to follow this CAUTION could result in minor personal injury or product and property damage.
IMPORTANT:
to an internal

Factory authorized filters must be used when locating the filter inside the unit. (See Table
filter is impractical,
a field-supplied
filter must be installed in the returu duct system.

PROCEDURE

7--UNIT

Refer

unit Installation

to outdoor

PROCEDURE
Easy

Select

8--EASY
taps

are used

1.) For those

applications

where

access

START-UP
Instructions

SELECT
by

for system

start-up

CONFIGURATION

the installer

instructions

and refrigerant

charging

method

details.

TAPS

to configure

a system.

pre-programmed
table of airflows. (See Table 3 and 4.) Airflows
in response to other inputs such as the need for de-humidification.

The

ECM

motor

uses

the

selected

taps

are based on system size or mode of operation
(See Fig. 17 and 18.)

to modify

its operation

and those airflows

to a

are modified

The FV4B Fan Coil must be configured
to operate properly with system components
with which it is installed.
To successlMly
configure a basic
system (see infonnation
printed on circuit board label located next to select pins), move the 6 select wires to the pins which match the components
used.
A.

AUX

Installer

HEAT
must

KW/CFM

select

- Select

the auxiliary

heater

heat airflow

range
approved

for size of electric
for application

heater

installed

with kw size heater

installed.

skipped. Each select pin is marked with a range of heaters for which airflow, also marked, is approved.
kw range matching the heater size, for example,
0-10 for 10-kw heater. This airflow must be greater
10

If no heater

is installed,

this step can be

For increased
comfort select the narrowest
than the minimum
CFM Ibr electric heater

UNIT

A03002

Fig. 14--Recommended

Condensate

DO NOT USE SHALLOW

Trap

RUNNING TRAPS!
A03013

Fig. 15--Insufficient

Condensate

Trap

__
PRIMARYTRAP REQUIRE

N WITH
_E_ETDK_A:OAR_QUIRED

(USE FACTORYKIT OR
FIELD-SUPPLIEDTRAP OF
SUFFICIENT DEPTH.
STANDARDP-TRAPSARE
NOT SUFFICIENT.SEE
FIGUREOF RECOMMENDED
CONDENSATE

TRAP)
A03003

Fig. 16--Condensate

Trap and Unit

application
with the size system installed for safe and continuous
operation.
(See Table 5 and 6 for airflow delivery and minimum
CFM.) Note
that airflow marked is the airflow which will be supplied in emergency
heat mode and heating mode on air conditioners
when electric heat is the
primary heating source. In heat pump heating mode when electric heaters are energized,
the ECM motor will run the higher of heat pump heating
airflow and electric heater airflow to ensure safe heater operation.
The factory selection is the largest heater range approved.
(See Fig. 17, A as
indicated.)
B.

AC/HP

SIZE

- Select

system

size installed

The factory setting for air conditioner
02"heat pump size is the largest
needs to select air conditioner
or heat pump size to ensure that airflow
to all operational

modes

with the exception

of electric

heat modes.

unit meant for application
with the model of _an coil purchased.
Installer
delivered falls within proper range for the size unit installed.
This applies

(See Fig. 17, B as indicated.)
i1

Table

FILTER
KIT
(12PACK)

l--Filter

Kits

PART NUMBER

SIZE USED WITH

KFAFK0212MED
KFAFK0312LRG

002
003. 005

KFAFK0412XXL

006

MOLEX 12-PIN CONNECTOR
A95275

Fig. 17--Detail
C.

SYSTEM

TYPE

The type of" system

- Select

must

system

type

installed

of FV4B

Printed-Circuit

Board

AC or HP

be selected:

i. AC - Air conditioner
2. HP-COMFORT
Provides

- Heat

Pump

approximately

Comfort

350 CFM

3. HP-EFF - Heat Pump Efficiency
CFM per ton.
The fiactory setting
D.

AC/HP

provides

approximately

per ton cooling

provides

airflow

same airflow

315 CFM

per

for good humidity

for heating

ton for higher

normal

heating

air delivery

temperature.

removal.

and cooling

modes

to increase

overall

HP efficiency;

approximately

350

is AC. (See Fig. 17, C as indicated.)

CFM ADJUST

- Select

Medium,

Low,

or High

Airflow

To provide airflow at rates described above, the ACHP
ADJUST select is factory set to the nominal (nom) tap. The adjust selections HIiLO will
regulate airflow supplied fbr all operational
modes, except non-heat pump heating modes. HI provides
15 percent airflow over nominal unit size
selected and LO provides 10 percent airflow below nominal
meet individual
installation
needs for such things as noise,
E.

ON/OFF

DELAY

- Select

desired

time delay

unit size selected. Adjust selection options are provided to adjust
comfbrt, and humidity removal. (See Fig. 17, D as indicated.)

Selection
i.

operation
options

are provided

to customize

modes

and enhance

only. Auxiliary
system

heating

operation.

modes

(See Fig.

have a 1 minute

oft" delay and zero

17, E as indicated)

are:

The standard

2. No delay

delay profiles

supplied

profile

NOTE:
Delay selections are active in cooling and heat pump heating
on delay programmed
into the ECM motor that cannot be oven'idden.
Four motor

airflow

90 sec off delay (Factory

option

used

for selwicing

unit

setting)

at 100 percent

or when a themmstat

3. A 30 sec on delay with no airflow/90
sec off delay at i00
to heat-up/cool-down
in conjunction
with the airflow.
4. ENH, enhanced
selection,
This profile will minimize

airflow.
is utilized

percent

airflow

to perfbrm
profile

delay

functions.

is used when

it is desirable

provides a 30 sec on delay with no airflow/plus
150 sec at 70 percent airflow/no
cold blow in heat pump operation
and could enhance system efficiency.
12

to allow

system

off delay for added

coils time

comfort.

see1

SEe2

EASY

SELECT

12-PIN MATE-N-LOCK
HEAT CONNECTOR

ELECTRIC

--_

A95275
Fig.
F.

CONTINUOUS

FAN

- Select

desired

18--PCB

fan speed

when

NOTE:
If installed with a 2-speed outdoor unit, do not select
speed possibly resulting
in insufficient
dehumidification.
1. LO speed
2. MED

speed

3. HI speed
(3.

- factory
- move

- move

Low-Voltage

The low-voltage

setting,

connector

Circuit
circuit

Basic

Fan Coil

The following
1. AUX

basic
HEAT

2. ACHP

SIZE

3. SYSTEM
4. ACHP

CFM

5. ON/OFF

COMFORT

Fusing

and

is referenced

65 percent

system

The following
1. AUX

KWiCFM
- Select

2. ACiHP

ADJUST

to chassis

- Select

fan

fan. If HI is selected,

low speed compression

will also run HI

cooling

mode

airflow.

(See Fig.

17, F as indicated.)

5-amp
ground

automotive

through

fuse placed

a printed

circuit

in series with the transformer
run at SEC1

connected

SEC2 and the R circuit.

to metal

standoff

marked

The C

with ground

FAN

the heater

range

- Select

for the size electric

heater

of the heat pump:
installed.

NOM.

0/90 profile.

- Select

desired

efficiently,

_an speed

HEATING

AND

thermostat
SUPER

humidity
removal

is recommended

- Select
system

when

but not at the published

fan coil configuration

- Select

performance

type HP-EFF.

- WARMER

KWiCFM

ARI rated

size installed.

system

- Select

will operate

SIZE

is set on continuous

continuous

airflow.

of the _an coil will provide

system

- Select

OPTIONS

HEAT

thermostat

HI speed

Reference

The FV4B Fan Coil provides
better than average
provided by the heat pump system if snore humidity
pump

Arrangement

Configuration

DELAY

6. CONTINUOUS

to MED,

mode

of HI, 100 percent

configuration

TYPE

cooling

is fused by a board-mounted

circuit of the transformer
symbol.
H.

50 percent

Wiring

narrowest

heater

DEHUMIDIFY

control and heated
or if wanner heating
HSPF

for maximum
range

is set to continuous
(See

fan.
Fig. 21 for Quick

Reference

Guide)

air temperature.
This configuration
will improve the comfort
air is desired. While providing
this improved com_brt, the heat

or ARI SEER efficiency.
heating

to snatch

and coolingidehumidil_ing

size of electric

size installed.
13

heater

installed

comlbrt:

(See Fig. 17.)

(skip this step if no heater

is installed).

3. SYSTEM TYPE - Select system type HP-COMFORT

(for heat pump system) or AC (for air conditioner system).

4. ACiHP CFM ADJUST - Select LO.
5. ON/OFF

DELAY

6. CONTINUOUS

- Select
FAN

ENH profile.

- Select

7. If the fan coil is installed
NOTE:

If configuring

8. Remove
9. Wire

jumper

with Intelligent
heating,

J1 to activate

dehumidify

connections

Themfidistat

as shown

(or

SuperComfortiPerfect
This configuration

fan speed

to run warmer

low voltage

10. Configure

desired

capable

Heat

when

thermostat

Staging

do not remove

is set to continuous

capable

electric

heaters,

jumper

J2 when

using 5-, 8-, or 10-kw

J2. (See Fig. 17.)
heaters.

zoning

system)

following

its

installation

instructions

for

enhanced

dehumidification

and

Heat operation.

provides

the following

reach wet coil operating

comfort

conditions

enhancements:
at 70 percent airflow to allow the indoor coil to warm up or cool down before the blower
the cold blow sensation at start up in heating and allowing the indoor coil to more qnickly

in cooling.

airflow while the compressor
cooling

d. Intelligent

jumper

in Fig. 9, 10, 11, or 12.

b. No blower off delay eliminates cold blow which may be associated
re-evaporation
of condensed
moisture
after cooling/dehumidifying

during

remove

modes.

a. A 30 second blower on delay with 150 seconds
is asked to deliver I00 percent airflow reducing

c. Lower

tim.

is running

to reduce

with running
operation.

&aft effects

the blower

and increase

heating

after shut down of the compressor

air temperature

and improved

and avoids

humidity

control

operation.

Staging

of the electric

heater

elements

to more closely

match heating

load requirements

and provide

more consistent

heating

air temperatures.
PROCEDURE
A.

9--ACCESSORY

Accessory

Electric

heaters

may

fi_ctory-approved
NOTE:

Units

air leakage
B.

Heaters

be installed

electric
installed

heater
without

and formation

Auxiliary

INSTALLATION

with

the FV4B

Fan

Coil per

instructions

supplied

with

electric

heater

package.

See unit

rating

plate

for

kits.
electric

of exterior

heat should

have

a field-supplied

sheet metal block-offplate

covering

the heater

opening.

This reduces

condensation.

Terminals

The AUX and HUM terminals

on the Easy Select

Board are tied directly

to the G temfinal,

and provide

a 24-vac

signal whenever

the G terminal

is energized.
(See Fig. 17 and 18.) During Super Dehumidify
and SuperComfort
Perfect Heat modes, the G signal is not present and the auxiliary
terminals
are not energized.
If the installation
includes the use of these operating modes, do not use these temfinals to control accessories.
See
Electronic
Air Cleaner and Humidifier
sections for further information.
C.

Electronic

Air Cleaner

The AUX1 and AUX2 terminals
the FV4B Fan Coil, use Airflow

Connections
are not ahvays energized during blower operation,
as described above. When using an electronic air cleaner with
Sensor Part No. KEAAC0101AAA.
The airflow sensor turns on electronic air cleaner when the fan coil blower

is operating.
D.

Humidifier/Humidistat

Connections

Easy Select Board terminals HUM1 and HUM2 are provided for direct connection
to the low-voltage
control of a humidifier
through
humidistat.
(See Fig. 19.) These terminals
are energized
with 24vac when G thermostat
signal is present. (See Fig. 20.) Alternately,

a standard
the 24-vae

signal may be sourced from the W and C terminal block connections
when electric heaters are used as primary heating source. When using a
Thermidistat TM Control, Zone Perfect Phts or Comfort Zone II, the 24-vae signal may be sourced directly from the Themfidistat
HUM terminal.
(See Fig. 9, 10, i1, and 12.)
HUMIDISTAT

HUM1
(C)

24-VAC

}

TO HUMIDIFIER

HUM 2 ...............................................................................................................................................................................................................

(G)

HUMIDIFIER

WIRING
A95317

Fig. 19--Humidifier
E.

Dehumidify

Latent capacities
the field wiring
contacts
increase

Capability

with

Standard

Humidistat

Wiring

Connection

for systems using the FV4B Fan Coil are better than average systems. It'increased
latent capacity is an application
requirement,
terminal block provides connection
terminals for use of a standard humidistat.
The FV4B Fan Coil will detect the humidistat

opening on increasing
humidity and reduce its airflow to approximately
80 percent of nominal cooling mode airflow. This reduction will
the system latent capacity until the humidity
falls to a level which causes the humidistat
to close its contacts. When the contacts close,

the airflow will return
(See Fig. 20.)

to 100 percent

of the selected

cooling

airflow.

To activate

this mode, remove

Jnmper

J1 and wire in a standard

humidistat.

EASY SELECT
BOARD TERMINAL
BLOCK

HUMIDISTAT

REMOVE j_

JUMPER

A95316

Fig. 20--Humidistat
F.

Dehumidify

and Super

Dehumidify

Wiring

for De-Humidify

Mode

Capabilities

This model fan coil is capable of responding
to a signal l_om indoor system control (Themlidistat,
zoning
modes such as Super Dehumidify
Mode. Consult literature provided with indoor system control to determine
and to see control
PROCEDURE
The FV4B

set up instructions.
10--FV4B

will supply

FAN

airflow

No special

COIL

setup or wiring

SEQUENCE

in a range

which

of Pan coil is required.

OF OPERATION

is more

than twice

the range

of a standard

capacities at a 50°F evaporator
temperature
and the required airflow which enables
Table 2 outlines the CFM range for the different FV4B Fan Coil sizes.
A.

Continuous
Thermostat

closes

•

The blower

runs at continuous

Cooling

circuit

Mode

If indoor temperature
and R to O.

•

The Pan coil delivers
Cooling

Mode

is above

single

temperature

speed

cooling

set point

and humidity

is below

humidity

sizes.

airflow

- Super

which

is approximately

Dehumidify

80 percent

Operation

(See

NOTE:
The indoor control used, such as Thennidistat,
nmst
configured
as outlined in its installation
instructions.
Consult
inputs

closes

circuits

R to G, R to YY2

airflow.

The Pan coil delivers
Mode

set point, thermostat

- Dehumidification

•

Dehumidify

cooling

system

speed

It'indoor
temperature
is above temperature
set point and humidity is above humidity
to G, R to O, and R to Y/Y2, and humidistat
or Thermidistat
opens R to DH.

Cooling

nominal

or heat pump

Pan airflow.

•

to provide

with 4 air conditioner

R to G.

- Single

•

fan coil. It is designed

it to match

Fan

•

control) to operate in comfort control
if these operating modes are available,

and for configuration

of the nominal

set point,

cooling

Fig. 22 for Quick

thermostat

airflow

Reference

or Thermidistat

to increase

the latent

closes circuits

capacity

of the system.

Guide)

be capable of providing
Super Dehumidify
operation
mode and control must be
indoor control literature
to determine
if control is capable of providing
Super

instructions.

If the indoor temperature
is below the temperature
set point and the humidity
is above the humidity
set point, the Thermidistat
closes
to O, opens circuits R to DH and R to G, and cycles circuit R to Y/Y2 (for single speed system R to Y1, or R to Y1 and YY2 for 2-speed

circuit R
system).

The ECM motor reads the G signal to the Pan coil while the heat pump is operating,
(circuit R to Y/Y2 for single speed system, R to Y1 or R to
Y1 and Y_2
for 2-speed system), closed (24 vac). If circuit R to G is closed (24 vac), the motor will deliver airflow at the full cooling or cooling
plus dehumidify
mode requested value. If circuit R to G is open (0 vac) for super dehumidify
the humidity
removal of the system while minimizing
overcooling.
E.

Electric

•

Thermostat

•

The Pan coil delivers

Heat Heating
closes

Heat Pump

•

The Pan coil delivers

closes

Heat Pump

Thermostat

R to WW1,

the selected

Heating

Thermostat

closes

Mode

circuits

airflow

to maximize

or W2.

electric
- Single

heat airflow.
speed

R to G and R to YY2.

single

Heating

reduced

Mode

circuit

•

mode, the motor delivers

speed

with

heat pump

Auxiliary

R to G, R to Y'Y2

heating

Electric
andor

airflow.
Heat

R to YI with R to WWI

or W2 (and R to O in the case of defrost).

In the event that electric heating is called for by the thermostat while the heat pump is also operating
in either heating or defrost modes, the motor
will modify its airflow output, if necessary, to provide an airflow which is defined as safe lbr the operation of the electric heater during heat pump
operation.
That airflow is the greater of the heat pump heating airflow and the electric heater only airflow.
PROCEDURE

CAUTION:

connectors
CAUTION

11--TROUBLESHOOTING

High

voltage

or servicing
motor.
could result in minor

ECM

always

MOTOR

present

AND CONTROLS

motor.

Disconnect

Wait at least 5 min after disconnecting
personal
injury or product
and property

power

power
before
damage.

unit
opening

before

removing

motor.

Failure

replacing

to follow

this

Table

2--CFM

FAN COIL SIZE

Range
SYSTEM

for

FV4B

Units

SIZES

(FM

RANGE

FY4BNF002

024, 030. 036

450-1275

FY4BNF003

024, 030, 036. 042

525-1475

FV4BNF005

036, 042. 048

550-1700

FV4BNB006

042, 048. 060

550-2150

Table

3--FV4B

Fan Coil Airflow

Delivery

(CFM)

in Cooling

Mode

OPERATING MODE
UNIT
SIZE

O[ TDOOR
UNIT
CAPACITY

Two-Speed
Application

Single-Speed
Application
Nominal
AiC
Cooling
525
700
875
1050

High Speed

AiC
Cooling
Dehmnidity
420
560
700
840

Nominal
AiC
Cooling

AiC
Cooling
Dehumidity

Nominal
AiC
Cooling

AiC
Cooling
Dehumidity

735

590

440

350

1100

880

660

530

735

590

440

415

1100

880

660

530

1100

880

660

530

1470

1175

880

705

1100

880

660

530

1470
1835

1175
1470

880
1100

705
880

002

018
024
030
036

003

024
030
036
042

700
875
1050
1225

560
700
840
980

005

030
036
042
048

875
1050
1225
1400

700
840
980
1120

006

036
042
048
060

1050
1225
1400
1750

840
980
1120
1400

NOTE
1 The above airflows result with the AC/HP CFM ADJUST select jumper set on NOM.
2 Airflow can be adjusted +15 percent or -10 percent by setecting HI or LO respectiveIy
3. Dry coil at 230 volts and with 10kw heater and filter installed.
4 Airflows shown are at standard air conditions

Table 4---FV4B

OUTDOOR
UNIT
CAPACITY

440/550/875
525/660/1050
610/770/1225
700/880/1400
525/660/1050
610/770/1225
700/880/1400
875/1100/1750

MODE
Two-Speed
Application

High Speed

002

018
024
030
036

420
560
700
840

Heat Pump
Efficiency
525
700
875
1050

003

024
030
036
042

560
700
840
980

700
875
1050
1225

005

030
036
042
048

700
840
980
1120

875
1050
1225
1400

006

036
042
048
060

840
980
1120
1400

1050
1225
1400
1750

Coln_o_

415/440/700
440/550/875
525/660/1050
610/770/1225

Fan Coil Airflow Delivery (CFM) in Heat Pump Only Heating Mode

Single-Speed
Application
Heat Pmnp

350/350/525
350/440/700
440/550/875
525/660/1050

for all modes except fan only

OPERATING
UNIT
SIZE

FAN ONLY
LO/_D/HI

Low Speed

FAN ONLY
LO/MED/HI

Low Speed

Heat Pmnp
Colntort

Heat Pump
Efficiency

Heat Pmnp
Colntort

Heat Pump
Efficiency

660

735

395

440

990

1100

595

660

735

415

440

990

1100

595

660

990

1100

595

660

1320

1470

795

880

990

1100

595

660

1325
1655

1470
1835

795
990

880
1100

350/350/470
350/395/630
440/520/785
525/595/945
415/415/630
440/520/785
525/595/945
610/695/1100
440/520/785
525/595/945
610/695/1100
700/795/1260
525/595/945
610/695/1100
700/795/1260
875/990/1575

for all modes except fan only

The ECM motor used with this product contains two parts: the control module and motor winding section. Do not assume the motor or module
is defective if it will not start. Go through the steps described below before replacing
control module, Easy Select Board or entire motor. The
control module is available
as a replacement
part.
16

Table 5--FV4B
FAN
UNIT
SIZE

NOM

18.000

625

675

24.000

650

725

835

725

835

875

30.000

815

905

1040

905

1040

900

1040

1100

11%

1100

36.000

980

1085

1250

980

1085

1250

980

1085

1250

1100

1250

24,000
30.000

675
815

725
905

835
1040

875
875

875
905

*
1040

*
1100

*
11%

*
*

36.000

980

1085

1250

980

1085

1250

1100

1250

1225

1250

42.000

1t40

1270

1460

1140

1270

1460

1140

1270

1460

1225

1270

1460

002

003

FAN
UNIT
SIZE

Airflow Delivery (CFM)

OUTDOOR
(NIT
(APA(ITY
BTITH

ELECTRIC
0 5

HEATER K'W 1L&NGE

0 10

0 15

OUTDOOR
LLNIT
CAPACITY
BTUH

NOM

30.000

975

1040

1100

1t00

1100

36.000

980

1085

1250

1100

1250

42.000

1140

1270

1460

1140

1270

1460

1250

1270

1460

48.000

1305

1450

1665

1305

1450

1665

1305

1450

1665

1500

1665

36.000

1100

1250

1350

42.000

1140

1270

1460

1350

1460

1525

48.000

1305

1450

1665

1350

1450

1665

1525

1665

1750

60.000

1630

1810

2085

1630

1810

2085

1630

1810

2085

1750

1810

2085

005

006

ELECTRIC

0 20

0-10

HEATER K_V 1K4.NGE

0 15

020

030

• Airflow not recommended for heater/system size.
NOTE: LO, NOM, and HI refer to AC/HP CFM ADJUST selection

Table
FAN
COIL
INIT

6--FV4B

024
030
036
Heater Only
024
030
036
042
Heater Only
030

005

036
042
048
Heater Only
036

006

Electric

Heater

Application

HEATER SIZE KW

5
625
625
650
800
970
675
675
800
975
1125
675
800
975
1125
1305
1050
1100
1125
1300
1625

Heater Only
018

003

CFM for

(FM

HEAT PIMP
UNIT
SIZE

002

Minimum

042
048
06O

8. 9. 10

18. 20

625

725

875

625
725

875

1040

970

1040

700

1050

875
875

1100

975

1100

1225

1125

1225

700

1050

875

11%

975

1100

1225

1125

1225

1305

1400

1050

1750

1100

1350

1125

1350

1300

1350

1465

1750

1625

1750

2 These airflows are minimum acceptable airflows as UL Iisted Actual airflow deIivered wili be per airflow delivery chart for EIectric Heating Modes.
If motor

turns

slowly:

l. Replace

panel.

Motor

2. It is normal
B.

If motor

operation

does

Turn off power

not

may appear

to run slowly

to run noticeably

slower

if access

panel

if G terminal

is removed.

is not energized

in cooling

or heat-pump

modes.

run:

and check

the following:

1. Check

5 amp fl_se on Easy

2. Check

l'or 24vac

3. Check

all plugs

on SECI

Select Board.
and SEC2.

and receptacles

If no voltage

for any deformation

is present,
which

check

could
17

1400

1125

NOTES:
1HeaterOnly-Airconditionerwithelectricheaterapptication.

24. 30

transformer.

cause

loose

connections.

Be sure plugs are fully seated.

J1 JUMPER- PULL FOR
DEHUMIDIFICATION CONTROL-J2 JUMPER- PULL FOR
HEAT STAGING

_i_

LOWVOLTAGE SCREWTERMINALS

DEHUMIDIFICATION INPUT

EASY SELECTTF'_I
--

24 VAC HOT

AUXILARY HEAT STAGE I

AUXILIARY HEAT STAGE 2

LOW SPEED COMPRESSOR

SINGLE OR HI SPEED

COMPRESSOR

FAN

REVERSING VALVE
COMMON

G
I
,Y2
I v[2 21v
PIN I2

(PL-I)

PIN 1

16-PINPLUG

W 1

C
A03004

-+
4. Verify

that approximately

5. Verify

low-voltage

Fig. 21--Control

230vac

control

signals

Signals

is present

at motor.

to motor.

The motor

(Easy

receives

its control

and 16-pin plug on wiring harness. (See Troubleshooting
Example.)
Fig. 20.) See Table 7 for circuit board, low-voltage
screw terminals
See Table
C.

7 for pin number

Use following

on 16-pin plug which

procedure

to check

control

should

Select

Board

signals

& 16-Pin

through

Plug)

the 12-pin

plug (PL-I)

on Easy

Select

Board

The combinations
of pins energized will detemline motor speed. (See
energized and for voltage present at each pin on i2-pin plug (PL-I).

have voltage

when

Easy Select

Board

screw

terminals

have 24vac.

is miswired,

configured

signals:

THERMOSTAT
i. Remove

all thennostat

2. Jnmper

screw terminals

or defective.
WIRING
i.

If motor

wires

from Easy

(1 at a time):
runs in some

Shut off power

3. Remove

16-pin

4. Replace
5. Check

If motor

continue

runs in all cases,

to check

wiring

harness

thermostat
and circuit

incorrectly

board.

from motor.

5-pin plug and turn power
for appropriate

voltages

If signals check correctly and motor
connections
are good, either control
PLUG

i. Unplug
2. Check

(PL-1)
harness

ON EASY

signals

with

screw terminals

jumpered.

(See Table

does not run, inspect wiring harness for loose pins or damaged
module or motor is defective.
If proper signals are not present,
SELECT

voltages

are not present,

is not running

on.

on 16-pin connector

7 for values

plastic
check

and see examples

below.)

that could cause poor connections.
If
circuit board using procedure
below:

BOARD

from board.

for appropriate

TROUBLESHOOTING
Motor

but not others,

to unit; wait 5 min.

5-pin plug fi'om motor.

If proper

cases,

HARNESS

2. Remove

12-PIN

Select Board.

R-G, R-Y Y2, R-Y1, R-Wl.

on pins with Easy Select Board

replace

Easy Select

Board.

screw terminals

If present

at board

jumpered.

(See Table

and not at 16-pin connector,

7 for values
wiring

and see example

harness

below.)

is defective.

EXAMPLE:
on a call for heat-pump

i. After

performing

2. With
Easy

all themmstat
Select board.

checks

in Thermostat

wires removed

heating.

System

is a single-speed

section,

steps

fi'om Easy

Select Board,

heat pump.

1 thru 5 in Wiring
place a jumper

Harness

wire between

section.

R and Y/Y2

3. Check Table 7 for pin number on 16-pin connector
associated
with the Y/Y2 signal. The correct
that (-) 12vdc should be present between pin #14 and pin #1 (common)
on the 16-pin connector.
18

Then proceed
low-voltage

with example.
screw temlinals

pin is #14. The far right colunm

on the

shows

Table
16-IN PLUG ON WIRING

7---Wiring

Connections

of FV Fan Coil Wiring

HA1LNESS TO MOTOR

Pin on 16-Pin Plug

_][RING

Description

HARNESS

Harness
(ONNE(TION

TO EASY SELECT

Pin on 12-Pin Plug
or Set-up Selection

Wire Color

Pin 9 on PL-1

Brown

Common

Jnmpered to R*

Pin 7 on PL-1

Violet

Common

Pin 10 on PL-1

Orange

4
5

On/Off Delay Selection
ACiHP Size Selection

White
Blue

Pin 3 on PL-1

Black

Anxilia_" Heat Stage 1

ACiHP CFM Actiust
Selection

Low Speed AC or HP

ACHP

CFM Adiust
Selection

24VAC**

(-) 12VDC**

Black

Not Used

NiA

Not Used

System T3_pe Selection

System Type Selection

Orange

Dehmnidify
Aux Heat Size
Selection

Pin 12 on PL-1
Aux Heat Size
Selection

11
12

24v AC

Anxilia_" Heat Stage 2
Single Speed AC or
HP. High Speed
2-Speed AC or HP
Fan

Y/Y2

Not Used

BOARD

Signal on Pin with
Screw Terminal

Gray

0V (24VAC on no call)

Violet

Pin 8 on PL-1

Red

24VAC continuous

Pin 4 on PL-1

White

24VAC**

Pin 2 on PL-1

Yellow

(-) 12VDC**

Pin 1 on PL-1

Green

24VAC**

NiA

Not Used

Check voItages with 16-Pin Plug disconnected from motor.
These signals will start motor
4. Set meter

to read DC voltage.

is present,
These

steps

the problem

can be repeated

To check Easy

Select

1. Leave jumper
2. Check

Table

4. If voltage
D.

Verify

Before

wire in place

between

Motor

and unplugged

between

"Wiring

Haruess

the wiring

Winding

to Easy

Select Board"

for (-) 12vdc

is either

(common

in wiring

hamess

side of meter

on pin #1). If signal

or Easy Select

Board.

haruess

Select Board

column

and row for pin #14 to see pin# on Easy

on far right will show voltage

and check

is bad; if not, the Easy

that should

be present

between

Select Board
pin #2 and #9

for (-) 12vdc.

Select Board

is bad.

replacement,

check

the following

to ensure

motor

winding

section

is functional.

With control

module

removed

section:

1. The resistance

between

any 2 motor

between

any motor

section

Connection

pin is #2. The column

Section:

with module

from winding

winding

is not, problem

R and Y/Y2.

The correct

2. The resistance
If motor

pins #1 and #14 and check
If signal

of operation.

pins #2 and #9 on Easy

is present,

proceeding

between

or motor.

Board:

7 under

meter

for other modes

that should have voltage.
(or #10 common).
3. Place

Place

is in the module

leads should

be similar.

lead and the unpainted

fails one of these tests,

it is defective

motor

end plate should

and must

START-UP

be greater

than

100K ohms.

be replaced.

PROCEDURES

Refer to outdoor unit Installation Instructions for system start-up instructions and refrigerant charging method details.
CARE

AND

MAINTENANCE

For continuing
high perfomaance,
and to minimize
possible equipment
failure, it is essential that periodic
equipment.
The only required maintenance
that may be performed
by the consumer
is filter maintenance.
z_X WARNING:
Disconnect
(when used) on access
panel

all power
does not

to unit before
servicing
disconnect
power
to the

other parts of unit. If unit does not have a disconnect,
disregard
means is within
sight from, and is readily accessible
from, the unit.
any maintenance

or service

The mininmm maintenance

on it. A failure

requirements

to follow

this

warning

field wires
or removing
line side of disconnect,

cause

electrical

be performed

on this

control
package.
The disconnect
but does allow safe service
to all

the foregoing.
Instead,
Disconnect
all electrical
can

maintenance

shock,

make sure that a disconnecting
power to unit before performing
fire,

personal

injury,

or death.

for this equipment are as follows:

1. Inspect and clean or replace air filter each month or as required.
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 plastic plug to inspect.
19

1. Configuration Taps
(See Installation Instructions, [br detailed description.)
A. AUX HEAT- Set for heater size (Ex: 0-10 for 10 kw)
B. AC/HP SIZE - Set tbr size of ou/door unit
C. SYSTEM TYPE - Select "HP COMFORT"
D, AC/tIP CFM ADJUST - Select "1,O"
E. ON/OFF DELAY - Select "ENtI"
E CONTINUOUS
t_?kN- Select desired speed
2. Install heater wilh Intelligent Heat Staging, and remove
Jumper J2. except when using 5-. 8-, or 10-kw heater.
3. Remove Jmnper J 1 to activate all dehumidify modes
4. Complete wiring and install outdoor temperature sensor
according to Installation Instructions,

1. Set "DIP Switches" - Set the dip switches (back of Thermidistat
Control Board) appropriately l_r specific system being installed.
2. Thermidistat Control Configurations
(See Thermidistat r', Control installation lnslructions for
detailed description.)
• Option 5 (Variable Speed Motors) - set to ON
• Option 7 (Super Dehumidify) - set to ON
• Option 9 (Intelligent Heat) - set Io ON if installing with
a single speed heat pump
• Option 12 (Heaters during Defrost) - setting "2" is
suggested for all heaters
• Option 16 - Set to ON for warmer heal below 40 ° E
• Option 17 - Select programmable
or non-programmable
mode,
3. Set desired humidity level on I_ont of Thermidistat
(50 to 55% RH recommended).
For coo! to dehumidify
operation, both "dht_" and "cool" nmst be displayed
/
A03100

Fig. 22--Set-Up

3. Inspect

blower

4. Inspect

electrical

Consult

motor

Fan Coil Service

Instructions
and wheel

connections
Manual

for Warmer

for cleanliness

for tightness
available

Heating

each heating

and controls

fi'om equipment

Temperatures
and cooling

for proper
distributor

WARNING: As with any mechanical equipment,
should be taken when removing parts.

and

season.

operation

Super

Clean

each heating

for maintenance

Humidity

Control

in Cooling

as necessary.
and cooling

season.

Setwice

as necessary.

procedures.

personal injury can result from sharp metal edges, etc, therefore, care

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 tim coil operation sounds and filter maintenance.

P[ RON(r9 QUICK
FOR INSTALLERS
Puron refi'igerant
designed
Puron

operates

to operate

refrigerant

Recovery
Puron

cylinders
service

should

Use a commercial
Manifold

Leak

with

type metering

should

pumps

moisture

rapidly.

and service

filter &ier

Do not use an R-22

open system
system

with 520 psig low-side

retard.

HFC refrigerant.
with POE oils.

working

in liquid

plastics

pressures

less than 600 psig.

line.
oil to atmosphere.

and roofing

materials.

with wet cloth when

on every

with an R-22

to atmosphere

brazing.

unit.

TXV, it must be changed

while

for selwice,

it is under
break

to a Puron

all warnings,

robe indoor
cautions

with &T nitrogen

coils.
and bold

TXV.

a vacuum.

vacuum

into the atmosphere.

Do not use capillary
Observe

or DOT BW400.

fi'om oil.

valves

is required

4BA400

rating.

Do not expose

to certain

must be opened

Do not vent Puron

equipment

TXV.

unit is equipped

When

Be sure that servicing

hose.

and 200 psig low-side

with rated

filter &ier

damage

all filter &iers

Never

in the manifold

to detect

filter &iers

a suction-line

Wrap

If indoor

device

moisture

POE oils may cause

A liquid-line

than R-22.

must be 400 psig, DOT

liquid refrigerant.

is only compatible

will not remove

POE oils absorb

rating

pressure

be designed

Do not use liquid-line
Do not install

pressures

with

be 750 psig high-side

as other HFC's,

Vacuum

pressure

750 psig service

detectors

Puron,

higher

are rose colored.

be charged

sets should

Use hoses

percent

with Puron.

cylinder

systems

at 50-70

REFERENCE
GUIDE
AND TECHNICIANS

text.

and replace

filter

&iers.

and replacement

components

are

7310 W. Morris St, Indianapolis,

IN 46231

imfv4B02

Book/Tab:

1/4,3d/2e

Catalog

No. 63FV-4B1

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Carrier FV4BNB006000 User Manual FAN COIL Manuals And Guides L0411151

CARRIER Air Handler (indoor blower&evap) Manual L0411151 CARRIER Air Handler (indoor blower&evap) Owner's Manual, CARRIER Air Handler (indoor blower&evap) installation guides

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