PAYNE Air Handler (indoor Blower&evap) Manual L0411007

User Manual: PAYNE PAYNE Air Handler (indoor blower&evap) Manual PAYNE Air Handler (indoor blower&evap) Owner's Manual, PAYNE Air Handler (indoor blower&evap) installation guides

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Installation

Instruction
PF1MNB

Direct Expansion Fan Coil Units
Sizes 018m071

NOTE:

Read the entire

This symbol

instruction

-_ indicates

manual

a change

from

be_bre starting

the installation.

the last publication.
SAFETY

hnproper

installation,

adjustment,

alteration,

cause personal injury or property
The qualified installer or agency
packaged

(NEC)

when

CONSIDERATIONS

maintenance,

damage. Consult a qualified
must use _actory-authorized

with the kits or accessories

Follow all safety
these instructions

service,

or use can cause explosion,

fire, electrical

which may

installing.

codes. Wear safety glasses and work gloves. Use quenching cloth for brazing
thoroughly
and follow all warnings or cautions attached to the unit. Consult

for special

shock, or other conditions

installer, service agency, or your distributor
or branch for information
or assistance.
kits or accessories
when modifying
this product. Refer to the individual
instructions

operations.
Have fire extinguisher
local building codes and National

available.
Electrical

Read
Code

requirements.

Recognize safety information.
This is the safety-alert
to the potential
for personal injury.

symbol

Understand

and CAUTION.

the signal word, DANGER,

WARNING,

Z_ • When you see this symbol
These words

on the unit and in instructions

are used with the safety-alert

symbol.

or manuals,

DANGER

be alert

identifies

the

most serious hazards which will result in severe personal il_iury or death. WARNING
signifies hazards which could result in personal injury or
death. CAUTION
is used to identify unsafe practices which would result in minor personal injury or product and property damage. NOTE is used
to highlight

suggestions

Z_
WARNING:
switch.
Turn off

which

Before
accessory

will result
installing
heater

in enhanced

installation,

or servicing
unit,
power if applicable.

reliability,

or operation.

always turn
Electrical

off all power to unit. There
shock
can cause personal

may be more than
injury or death.

'1 disconnect

INTRODUCTION
Model

PF1MNB

Fan Coil Units

----) These units are designed

are designed

for flexibility

to meet the low air leak requirements

and can be used
cun'ently

pan and drain connection
area and when brazing tubing. These
nominal cooling capacities.
(See Fig. 2 and 3.) Factory-authorized,
Product

Data for available

accessory

for upflow,

in effect.

Because

horizontal,

or downflow

applications.

of this, the units need special

attention

in the condensate

units are available
for application
in systems of 18,000 through 60,000 Btuh
field-installed
electric heater packages are available in 3 through 30 kw. See

kits.
--> HEATER

PACKAGES

This unit may or may not be equipped with an electric heater package. For units not equipped with _actory installed heat, a _actory-approved,
field
installed UL listed heater package is available from your equipment
supplier. See unit rating plate lbr a list of factory approved heaters. Heaters
that are not factory approved could cause damage which would not be covered
heater package, minimum circuit ampacity (MCA) and maximum
fuse/breaker
heater.

The difference

is not an error

and is clue to calculation

difference

under the equipment wan'anty. If fan coil contains a factory installed
may be different than units with a same size field installed accessory

per UL guidelines.

INSTALLATION
---> PROCEDURE

I--CHECK

Unpack

unit

Inspect

equipment

plate

and move

which

Unit

can stand

to final location.

for damage

prior

proper

installation

contains

PROCEDURE

EQUIPMENT
Remove

carton

to installation.

2--MOUNT

UNIT

o1" lie on floor,

or hang

taking

care not to damage

File claim with shipping

information.

Check

from ceiling

o1"walh

rating

Allow

company

unit.
if shipment

plate to be sure unit matches

space

for wiring,

piping,

is damaged
job

or incomplete.

Locate

unit rating

specifications.

and selwicing

unit.

IMPORTANT:
When unit is installed over a finished ceiling and/or living area, building codes may require a field-supplied
secondary condensate
pan to be installed under entire unit. Some localities may allow as an alternative,
the running of a separate, secondary
condensate
line. Consult
local codes
A.

Upflow

for additional

restrictions

or precantions.

Installation

If return air is to be ducted
unit, and floor.

through

Side return

on slope coil models.

Form:

is a field

option

IM-PF1M-04

a floor,

Cancels:

set unit on floor
Cut opening

IM-PF1M-03

over opening

and use 1/8- to 1/4-m. thick fireproof

per dimensions.

(See Fig.

Printed in U.S.A.

1.) A field-supplied

1-03

resilient

bottom

gasket

closure

Catalog No.

between

is required.

53PF-1M5

duct,

POWER
ENTRY
--_
OPTIONS
_

IELD SUPPLIED
SUPPLYDUCT

OWVOLOPTIONS

018-060
21-1N.
FRONT
SERVICE
07024-1N. CLEARANCE

UNIT

0!8/024

12 In.

030/036

17 In.

042

!9 In.

UPFLOW/_

2°w
FIELD MODIFIED

PRIMA_
A

SIDE RETURN
LOCATION FOR
UNITS ONLY
SLOPE COIL

UPFLOW/DOWNFLOW
SECONDARY DRAIN II

UPFLOW/DOWN FLOW _/
PRIMARY DRAIN

FIELD SUPPLIED
RETURN PLENUM

A00069

Fig. l--Slope
B.

Coil Unit in Upflow Application

Downflow Installation

---->NOTE: To convert units for downflow applications, refer to Installation Instructions supplied with kit for proper installation. For slope fan coils,
use kit Part No. KFADC0201SLP. For A fan coils use kit Part No. KFADC0401ACL. Use fireproof resilient gasket, 1/8- to 1/4-in. thick, between
duct, unit, and floor.
NOTE: Gasket kit number KFAHD0101SLP

is also required Ibr all downflow applications to maintain low air lea_low

sweat performance.

--_ _
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.
C.

Horizontal

Installation

Units must not be installed with access panels facing up or down. Units are factory built for horizontal left installation (See Fig. 2 and 6.) When
suspending unit from ceiling, dimples in casing indicate suitable location of screws for mounting metal support straps. (See Fig. 2.)

slightly

CAUTION: To ensure proper drainage for horizontal installations, unit must be installed level with its long direction or
raised at the return air inlet 1/4-in., and pitched slightly towards condensate drain, 1/4-in. to 1/2-in.

NOTE:
Modular units (sizes 070, 071) can be disassembled
and components
moved separately
accommodates
small scuttle holes and limiting entrances
to installation
sites. (See Fig. 3.)
HORIZONTAL
NOTE:

RIGHT

Gasket

CONVERSION

kit number

i. Remove

blower

2. Remove

coil mounting

3. Remove

coil assembly.

4. Lay

KFAHD010ISLP

and coil access

coil to casing

flange

SLOPE

coil assembly

coil mounting

slope coil conversion

to maintain

low air leak/low

(See Fig. 4.)

to right-side

coil assembly

area for reassembly.

This process

COILS

1"o1"horizontal

and fitting panel.

side and reinstall
using

WITH

is required

panels

screw securing

fan coil unit on its right

5. Attach

OF UNITS

to installation

casing

flange.

with condensate

screw previously

removed.
2

pan down.

(See Fig. 4.)

sweat

pertbrmance.

!RIMARY

FIELD _
SUPPLIED
HANGING

DRAIN

STRAPS
018-060 21-IN.
070 24-1N.
FRONT SERVICE
CLEARANCE
(FULL FACE
[ OF UNIT)

UNIT

LOW VO LT
ENTRY
OPTIONS

" ccgss
o

SECONDARY
DRAIN
POWER
ENTRY

OPTIONS

A00070

Fig. 2--Slope

Coil Unit in Horizontal

Left Application

BLOWER BOX

----7
I

2 SCREWS
EWS

BRACKET

2 SCREWS
COIL BOX

A95293

Fig, 3--Removal

of Brackets on Modular Unit

COIL MOUNTING

BLOWER
ASSEMBLY

COIL
SUPPORT
RAIL

SLOPE COIL
SKI

•PRIMARY DRAIN
CONNECTIONS
SECONDARY

DRAIN

A03001

-e Fig. 4--Conversion

for Horizontal Right Applications

Using a Slope Coil

SEAL
CONNECTIONS
HORIZONTAL
RIGHT
APPLICATION
SUPPORT
RAIL

BRACKET

DRAIN
SUPPORT
BRACKET
COIL_
SUPPORT
RAIL

BRACKET
DRAIN PAN
HORIZONTAL
SECONDARY
HORIZONTAL

RIGHT
DRAIN
RIGHT
A00071

Fig. 5--Conversion
for
sure the pan cap in the fitting door is properly

----)

6. Make

---)

7. Add gaskets
8. Align
Make

holes with

sure liquid

HORIZONTAL

from

kit KFAHD
tubing

and suction
RIGHT

i. Remove

blower
metal

connections

and condensate

robe grommets

are in place

and coil access

3. Remove

2 snap-in

clip securing

Using A-Coil
the low air leak rating

of the unit.

per kit instructions.

CONVERSION

2. Remove

Horizontal
Right Applications
seated on the fitting door to retain

OF UNITS
panels.

fitting

clips securing

pan connections,
to prevent

WITH

A-COIL

(See Fig. 5.)

panel to condensate
A-coil

and reinstall

air leaks and cabinet

pan.

Remove

in unit.
4

fitting panel.

access

panels

sweating.

and fitting

Install

after

panel.

brazing.

FACTORY SHIPPED
HORIZONTAL LEFT
APPLICATION

COIL

COIL
SUPPORT
RAIL
DRAIN PAN
SUPPORT
BRACKET

COIL

HORIZONTAL
DRAIN PAN

PRIMARY DRAIN
HORIZONTAL LEFT

AIR SEAL \
ASSEMBLY___

SECONDARY DRAIN
HORIZONTAL LEFT
REFRIGERANT
CONNECTIONS
A00072

Fig. 6---A-Coil
4. Slide coil and pan assembly
5. Remove

horizontal

6. Convert

air-seal

&ain

air-seal

b. Remove

air splitter

c. Remove
d. Install

filler plate

e. Remove
f. Install
7. Install

---)

troughs

2 snap-in
horizontal

12. Remove

2 oval coil access
condensate

access

Make

sure liquid

Connect

supply-air

Use flexible
material
insulated

and fitting
panel

3--AIR

type of duct used,

Ductwork

(B) in place
right

on coil support

rail on right side of unit.

(See Fig. 5

_actory-shipped

inset.)

of filler plate.

application.

on opposite

tube sheets.

panel

on each corner

and secure

of vertical

coil assembly

side of coil access

plugs

and reinstall

pan engages

panels,

and vertical

aligning

holes

condensate

tube grommets

coil support

in unit. Be sure clip with large

rails.

of£set is used on right side of unit

panel.

into holes

sure no insulation

on left side of coil access

interferes
with tubing

with seating
connections

panel

and fitting panel.

sure that the cap snaps

and seats cleanly

on the

of the cap.
and condensate

pan connections.

Be sure to reinstall

metal

clip

pan.

are in place

to prevent

air leaks

and cabinet

sweating.

DUCTS

duct over outside

of the 3 4-in. flanges

between

joint.

ductwork

If return-air

with 20-30kw
Acoustical

electric

provided
flanges

and unit to prevent

for flexible connector
between
ductwork
and covered with vapor barrier.

Units equipped

3 screws.

the left side of the coil door and fitting

on right

and seal duct-to-unit

connectors

(See Fig. 5.)

pan fitting caps (fi'om Step 10) in the right side of the coil door making

and suction

PROCEDURE

position

caps from

knockouts

side of the coil door. Make

fitting

4 screws.
by removing

Be sure coil bracket

clips to correctly
pan.

insulation

between

air splitter

in horizontal

into casing.

two oval fitting

14. Reinstall

rail on left side of unit and reinstall

spout.

11. Remove

back

(A) and install

i0. Remove

13. Install

Ready)

pan on right side of coil assembly.

8. Slide coil assembly
9. Reinstall
to secure

(Factory

right

from coil by removing

(A) as shown

onto plastic

horizontal

from coil support

(B) from coil seal assembly

condensate
hose

bracket

for horizontal

assembly

filler plate

Left Application

out of unit.

pan support

assembly

a. Remove

in Horizontal

heaters

and unit

require

on supply-air
are required,

transmission

at discharge

a 1-in. clearance

opening.
install

of vibration.

connection.
to combustible

Secure

duct to flange,

factory-authorized
When

accessory

electric

heater
through

using proper

fasteners

for the

kit.
is installed,

Ductwork

passing

materials

for the first 36 in. of supply

use heat-resistant

unconditioned

space

must

duct.

Treatment

Metal duct systems that do not have a 90 ° elbow and 10 ft of main duct to first branch takeoff may require internal 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
UL Standard
181 for Class 1 air ducts.

lining

and fibrous

ductwork

shall comply

with National

Fire Protection

Association

as tested by

PROCEDURE
NOTE:
A.

4--ELECTRICAL

See B for electrical

Sizes

CONNECTIONS

connection

018 Through

of size 071.

070

All products fi'om the factory utilize a printed-circuit
board (PCB) which
selection terminal (SPT), and time delay relay (TDR) jumper. To disable
When

a _actory-approved

connections

accessory

heater

to be sure none were

package

loosened

has been installed,

in transit

Z_
CAUTION:
If a disconnect
switch
electrical
or refrigerant
components.

or installation.

has a low-voltage
the TDR feature,

check all factory
See unit rating

is to be mounted

The unit nmst have a separate
the unit.
On units with a factory
control package.

branch

installed

electric

disconnect

Z_
WARNING:
Field wires on the
is removed.
Service
and maintenance
the

unit)

is turned

LINE-VOLTAGE

off.

an electric

fi'om unit wiring harness.
For units without electric
Connect

208/230v

2. Connect

with pull-out

removed,

where

and inspect

factory

wiring

packages.

drill

or fastener

will

not contact

fi'equency, phase, and ampacity are as specified on unit rating
all electrical connections
in accordance
with the NEC and any

disconnect

service

a location

diagram

heater

tap

switch located

and maintenance

within

sight from and readily

can be safely

performed

accessible

fi'om

on only the load side of

line side of the disconnect
found in the fan coil unit remain
live, even when the pull-out
to incoming
wiring can not be performed
until the main disconnect
switch
(remote
to

to do so will

ground

heater,

remove

(See Electric
heat:

result

power

and discard
Heater

in electrical

CONTROL

power

Installation

leads fi'om field disconnect

wire to unit

ground

shock

causing

personal

injury

or death.

plug (if equipped)

from fan coil and connect

male plug from heater

to female plug

Instructions.).

to yellow

and black

stripped

leads.

lug.

NOTE:
Units installed without electric heat should
air leakage and formation of exterior condensation.
24-V

with a field-supplied

per unit wiring

speed

CONNECTIONS

If unit contains

Failure

circuit

wiring

plate for approved

on the unit, select

Before proceeding
with electrical connections,
make certain that supply voltage,
plate. See unit wiring label for proper field high- and low-voltage
wiring. Make
local codes or ordinances
that may apply. Use copper wire only.

circuit protective
fuse (5 amp), fan motor
cut the JWl jumper wire. (See Fig. 7.)

have a field-supplied

sheet metal

bloek-offplate

covering

the heater opening.

This will reduce

SYSTEM

Connection
To Unit
Wire low voltage in accordance
with wiring label on blower. (See Fig. 8, 9, 10, ll, and 12.) Use No. 18 AWG
color-coded,
insulated
(35°(; minimum)
wire to make the low-voltage
connections
between
the thermostat,
the unit, and the outdoor
equipment.
If thermostat
is located more than 100 ft from unit (as measured
along the low-voltage
wire), use No. 16 AWG color-coded,
insulated (35°C minimum) wire. All wiring nmst be NEC (?lass 1 and must be separated
wiring instructions
for any additional
wiring procedure
recommendations.

2. Transformer
terminal
3. Heater

Inlbrmation

on transformer
Staging

The

Transformer
and connect
controls

are

is _actory

wired

for 230-v

it to the 208-v

terminal.

factory-circuited

for

operation.

For 208-v

per thermostat

applications,

power

leads. Refer

disconnect

to outdoor

black wire

unit

fi'om 230-v

(See Fig. 13.)

single-stage

operation.

For

KHAOT0301FST,
and for 3-stage use both kits KHAOT0201SEC
and KHAOT0301FST.
nut, strip and reconnect per the thermostat
kit instruction.
(See Fig. 11.) When 3 stages
Strip W2, W3, and E and reconnect

fi'om incoming

kit instructions.

2-stage

operation,

use

outdoor

thermostat

kit

When 2 stages are desired, cut W3 at the W2 wire
are desired, cut the W2 wire nut off and discard.

(See Fig. 12.)

Fig. 7--Fan

Coil Printed-Circuit
6

Board

A03010

FAN COIL
'CONTROL'

THERMOSTAT

FAN COIL
'CONTROL'

THERMOSTAT

_R
_zZL__

[]
W3

E
AIR COND.

AIR COND.

A94058

Fig,

8--Wiring

Layout
(Cooling

Air Conditioning
Only)

FAN COIL
(CONTROL)

THERMOSTAT

A94059

Unit

Fig.

HEAT PUMP
(CONTROL

g--wiring
Layout
(Cooling
and

Air Conditioning
l-Stage
Neat)

Unit

FAN COIL
(CONTROL)

THERMOSTAT

HEAT PUMP
CONTROL

[]-

[]
[]

E___
W2

C3_o
z;_=¥

W30DTS

4q_

[Z]--A94060

Fig, 10--Wiring
Layout
and 2-Stage Heat with

(Cooling

Heat Pump
No Outdoor

A94061

Unit
Thermostat)

(Cooling

Fig. 11--Wiring
and 2-Stage

Layout Heat Pump
Heat with 1 Outdoor

Unit
Thermostat)

z_
CAUTION: If W2, W3, and E on any 3 stage heater (18, 20, 24, or 30kw), are individually connected as with outdoor
thermostats or any other situation, emergency heat relay must be used. This relay is in kit KHAOT0201SEC and is normally
used with kit KHAOT0301FST for a 2 outdoor thermostat system.
NOTE: When
KHAOT0201SEC
GROUND

-->

3 stages are used
must be used.

or anytime

the E terminal

is not

tied to W2,

the

emergency

heat

relay,

part

of outdoor

themlostat

kit

CONNECTIONS

z_ WARNING:
According
to NEC, ANSI/NFPA 70, and local codes, the cabinet must have an uninterrupted or unbroken
ground to minimize personal injury if an electrical fault should occur. The ground may consist of electrical wire or metal
conduit when installed in accordance with existing electrical codes. If conduit conection uses reducing washers, a separate
ground wire must be used. (See Ground/Conduit Note below.) Failure to follow this warning could result in electric shock,
fire, or death.
NOTE:

Use UL-listed

accomplished
MINIMUM

conduit

and conduit

connector

by using

grounding

lugs provided

CFM AND

MOTOR

SPEED

Units with 02"without electric
mininmm
fan speed indicated.
Fan speed selection
replace with motor

heaters

for connecting

in control

supply

wire(s)

to unit to obtain

proper

grounding.

Grounding

may also be

box.

SELECTION

require

a mininmm

CFM.

Refer

to unit wiring

label

to ensure

that fan speed

selected

is done at fan relay on printed-circuit
board. To change motor speeds, disconnect
_an lead used on relay
speed tap desired. (See Fig. 14.) Save insulating
cap and place on motor lead removed
from relay.
7

is not lower
terminal

(SPT)

than
and

FAN COIL
'CONTROL'

TH ERMOSTAT

[2>

RED

HEAT PUMP
(CONTROL

[]-

BLU ODTS!

[]
[]-

]

[]
[]

O
Y

EMERGENCY

HEAT RELAY
A94062

Fig. 12--Wiring

Layout

Heat

Pump

Unit (Cooling

and 2-Stage

Heat with 2 Outdoor

Thermostats)

YEL
BLK

PRIMARY
A94067
NOTE:

In low static

Sizes 018 through

applications,

lower

036 have 2 motor

speed taps. Sizes 042 through

unit applications.
Medium speed (blue)
systems of straight matched systems.
B.
Size 071
LINE-VOLTAGE
Units with
adapter

heaters

kit for fused models
all factory

WARNING:

disconnect

is designed

for straight

070 have 3 motor
matched

of water

being blown

oft" coil.

speed taps. Low speed (red) is designed

operations.

High

speed

(black)

is used

for mismatch

with high

external

outdoor
static

duct

CONNECTIONS

15- and 20-kw

Check

motor

Fie. 13--Transformer
Connections
speed'tap
should be used to reduce possibility

wiring

switch.

are factory

per unit wiring

Before
Turn

wired

for dual-circuit

operation.

When

single-circuit

operation

is required,

install

_actory-authorized

only.
diagram

installing
off accessory

and inspect

or servicing
heater

factory

system,
power

wiring
always

if applicable.

connections
turn

off

to be sure none were
all

Electrical

power
shock

to system.
can

cause

z_
CAUTION:
If a disconnect
switch
is to be mounted
on the unit, select a location
where
electrial
or refrigerant
components.
Electrical
shock
can cause personal
injury or death.

loosened
There
personal

drill

in transit
may

injury

or fastener

will

or installation.
more

than

or death.

not contact

PCB
FAN
SINGLE
INSULATING
CAP(2)

MOTOR
SPEED
TAPLEADS
2 OR3

SPEED
TAP
TERMINAL

WRAPPER
J

COMMON
YELLOW

FANDECK
A94068

Fig. 14--Fan

NOTE:
Before proceeding
with electrical connections,
Be sure that electrical service provided by the utility
See unit wiring

label for proper

field high-

CoilFan

Relay

and

Speed

CONTROL

SYSTEM

and low-voltage

CONNECTIONS

Terminal

make certain that supply voltage, fi'equency, and phase are as specified
is sufficient to handle the additional
load imposed by this equipment.
wiring.

Make

all electrical

or ordinances
that may apply. Use copper wire only. The unit must have a separate
located within sight f_com, and readily accessible
from the unit.
24-V

Tap

TO UNIT

PRINTED-CIRCUIT

connections

branch

electric

BOARD

in accordance
circuit

with NEC

on unit rating plate.

and any local codes

with a field-supplied

disconnect

switch

(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 themmstat
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) wires. PCB is circuited for single-stage
heater operation. When
staging is desired using 2-stage or outdoor thermostats,
see applicable
outdoor unit instructions.
Remove Jnmper J2 on PCB.
1. The

5-, 8-, and 10-kw heaters

2. The 9- and 15-kw heaters
3. The

low-voltage

NOTE:

Where

nmst be NEC

leads

Class

Transfomler
them

require

1 and must

The secondary

is factory

wired

to the 208-v
circuit

heaters

to thermostat

local codes

A _actory-authorized
disconnect
are installed, the circuit breaker

connect

are adaptable

18-, 20-, 24- and 30-kw

Connect

are single

for 2-stage

and outdoor

be separated

wiring
from

operation.
for up to 3-stage

unit.

for 230-v

operation.

(See Fig.

of the transformer

operation.

(See Fig. 15.)

be routed

incoming

kit is available for installation
can be used as a disconnect.

terminal.

heater

stage only.

are adaptable

thermostat

additional

For 208-v

through
power

conduit

or raceways,

splices

can be made inside

of 0- through

10-kw applications.

applications,

disconnect

black

When electric

wires

from 230-v

13.)

is protected

by a 5-amp

tan coil unit. All wiring

leads.

fuse mounted
9

on the printed-circuit

board.

heat packages

terminal

with circuit

breakers

on the transformer

and

Thermostat
Subbase

07! UNIT

Outdoor

Terminal
BIock

Circuit
Board

rq
m

DFq
El-DE_13--

--t-q

A97011
Fig. 15--Single-Speed
GROUND

Heat

Pump

z_x WARNING:
The cabinet must have an uninterrupted
or unbroken
codes to minimize
personal
injury
if an electrical
fault should occur.
conduit
ground
shock,

when installed
in accordance
with existing
wire must be used. (See Ground/Conduit
fire,

NOTE: Use
accomplished
ground

electrical
codes. If conduit
connection
uses
Note below.)
Failure
to follow
this warning

tubing

package

TUBING

or field-supplied

tubing

of refrigerant

flow-control

grade.

device.

have sweat
Cut tubing

2. Insert

suction

and liquid

to correct

tube into sweat

robe connections.

CAUTION:

suction

tube

evacuate

must

sets are being

tube connection

be insulated.

Do not use damaged,

coil and field-supplied

tubing

to 500 microns

brazed to the unit connections

dirty,

before

to prevent

first.

length.
connection

on unit until

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

--_ Z_

Make

Suction

ALWAYS

--_ Z_
CAUTION: A brazing shield MUST be used when tubing
damage to the unit surface and condensate pan fitting caps.

reducing
washers,
a separate
could
result
in an electrical

on unit and heaters.

5--REFRIGERANT

contaminated
robing because it may plug rel}igerant
opening outdoor unit sel_'ice valves.

Units

70 and local
wire or metal

UL listed conduit and conduit connector to connect supply wire(s) to unit and obtain proper grounding.
Grounding
may also be
by using grounding
lug provided in control box. Use of dual or muhiple supply circuits will require grounding
of each circuit to

lugs provided

accessory

ground according
to NEC, ANSI/NFPA
The ground
may consist of electrical

or death.

PROCEDURE
Use

Wiring

CONNECTIONS

it bottoms.

or non-silver

bearing

Wrap a wet cloth around rear of fitting

brazing

materials.

Do not use solder

(materials

to prevent damage to TXV and factory-made

which

melt

below

800°F).

joints.

4. Evacuate coil and tubing system to 500 microns using deep vacuum method.
PROCEDURE
6--REFRIGERANT
FLOW-CONTROL DEVICE
Z_X CAUTION:
compressor
start

If using a TXV
capacitor
and

Replace piston if required.
plate. If it does not match,

(071 size factory
installed)
relay are required.
Consult

in conjunction
outdoor
unit

with a single-phase
reciprocating
pre-sale
literature
for start assist

Check piston size shown on indoor unit rating plate to see if it matches required
replace indoor piston with piston shipped with outdoor unit. The piston shipped

approved indoor coil combination.
i/2 turn. Do not exceed 30 ft-lbs.

(See Fig. 16.) When

changing

piston,

use a back-up

wrench.

Hand tighten

compressor,
a
part number.

kit

piston shown on outdoor unit rating
with outdoor unit is con'ect for any
hex nut, then tighten

with wrench

PROCEDURE

7--CONDENSATE

DRAINS

--_ z_
CAUTION: The conversion of the fan coil to downflow requires special procedures
A-coil and Slope units.
The vertical drains have an overflow hole between the primary and secondary
drain
applications except downflow, but must be used for downflow.
During the conversion process, remove the plastic cap covering the vertical drains only
the overflow hole and discard. At completion of the downflow installation, caulk around
to retain the low air leak performance of the unit.
To connect

drains the cap openings

must be removed.

disk. Clean the edge of the opening
the low leak rating of the unit.
Units are equipped
To prevent property

if necessary

Use

a knife

to start the opening

and install the condensate

CAUTION:

Shallow, running

NOTE:

When

primary

and secondary

connecting

condensate

holes. This hole is plugged for all
and discard. Remove the plug from
the vertical pan fitting to door joint

near the tab and using
caulk around

pliers,

the lines where

with primary and secondary
3/4 in. FPT &ain connections.
For proper condensate
damage and achieve optimum &ainage performance,
BOTH primary and secondary

properly-sized
condensate
traps. (See Fig. 17 and 19.) Factory-approved
plastic condensate
pan. Do not over-tighten.
Finger-tighten
plus i-i/2

z_x

line. Finally

for the condensate drains on both

pull the tab to remove
they exit the fitting

the

to retain

line installation
see Fig. 1, 2, 4, 5, and 6.
&ain lines should be installed and include

traps are available. It is recommended
turns. Use pipe dope.

that PVC fittings

be used

on the

traps are inadequate and DO NOT allow proper condensate drainage. (See Fig. 18.)

&ain

lines, avoid blocking

filter access

panel,

thus preventing

filter removal.

After

connection,

prime both

traps.

NOTE:
If unit is located in or above a living space where damage may result from condensate
overflow,
a field-supplied,
exterual condensate
pan should be installed underueath
entire unit, and a secondary
condensate
line (with appropriate
trap) should be run from unit into pan. Any
condensate
in this exterual condensate
pan should be drained to a noticeable place. As an alternative to using an exterual condensate
localities may allow the use of a separate 3/4 in. condensate
line (with appropriate
trap) to a place where condensate
will be noticeable.
of the structure must be informed
damage will occur.
Install traps

in condensate

that when condensate

flows fi'om the secondary

lines as close to coil as possible.

(See Fig. 19.) Make

&ain or external
sure that outlet

condensate

pan, unit reqnires

of each trap is below

its connection

pan to prevent condensate
from overflowing
the &ain pan. Prime all traps, test for leaks, and insulate traps if located
Condensate
drain lines should be pitched downward
at a mininmm
slope of 1 in. for every i0 ft of length.
Consult

local codes

PROCEDURE

for additional

restrictions

servicing

above

pan, some
The owner
or water

to condensate

a living

area.

or precautions.

8--ACCESSORIES

Electric Heaters

See unit rating plate for factory approved electric heater kits. Follow installation instructions provided with kit.
B. Electronic Air Cleaner
SIZES

0"18--070

The Electronic
because

Air Cleaner

it uses the 230-v

may be connected
fan coil power

to fan coil as shown

in Fig. 20. This method

requires

a field supplied

240vi120v

supply.

IE&NDISTR' OTOR

_-- PISTON
RETAINER

BRASS
HEX BODY

STRAINER

A94415

Fig. 16--Refrigerant
Flow-Control Device
(071 Size Has TXV and Strainer)
11

40va transformer

UNIT

t
2" MIN

DO NOT USE SHALLOW RUNNING TRAPS!
A03013

A03002

--_ Fig. 17--Recommended

Condensate

Trap

Fig. 18--Insufficient

Condensate

Trap

CONTROL

BOARD

OVAC
"If'

FAN RELAY

SPT
ACCESS
PANEL

I
2o8,23OVAC
COM

MOTOR

(USE FACTORY KIT OR
FIELD-SUPPLIED
TRAP OF
SUFFICIENT
DEPTH.
STANDARD
P-TRAPS ARE
NOT SUFFICIENT. SEE
FIGURE OF RECOMMENDED
CONDENSATE
TRAP)

TRANSFORMER

BLOWER

TRAP REQUIRE_X_

NONC

, CONVERSIONK,T,
I

SECONDARY
DRAIN WiTH
APPROPRIATE
TRAP REQUIRED
(USE FACTORY KIT OR
FIELD-SUPPLIED
TRAP)
PRIMARY

R G

;

[

2?gg

TO EAC
FROM MOLEX
PLUG AND
TRANSFORMER
(IN UNIT)
A03011
--_ Fig. 20--Wiring
Layout of Electronic
Fan Coil -- Sizes 018--070

A03003

-_ Fig. 19--Condensate

SIZE

Drain

Air

Cleaner

071

Because the ECM blower motor used in the 071 size fan coil is controlled
by low-voltage
signals, a switched 230vac electronic air cleaner power
signal is not available.
This signal is replaced by a 24vac signal which is provided at PCB terminals AUX 1 and AUX2 (See Fig. 21 .) This signal
is present whenever the G thermostat
with an electric air cleaner, use field

signal is present (heat pump
supplied 24vac relay.

heating,

cooling

and continuous

blower

modes).

When

the fan coil is installed

The EAC relay kit consists of a 24vac relay which mounts directly on the PCB bracket inside the fan coil using facto W punched screw holes, 2
mounting
screws, 2 pre-temlinated
wires for connection
of the relay coil to the AUX1 and AUX2 terminals,
2 No. 16 AWG stripped leads for
connection
of the relay contacts for control of power to the EAC, wire nuts, and wiring instructions.
(See Fig. 22.)
If the EAC relay
NOTE:

When

is field

supplied,

use field supplied

the 071 size is installed

G output with a call for heat is required
to "on" is recommended.

with an air conditioner
for air cleaning

terminations

and wire per the EAC

and the electric

or humidification

heat is the primary

during heating

mode.

wiring

schematic.

heating

device,

A themmstat

(See Fig. 23.)

a thermostat

which

turns on the

with the _an-on with W option

set

Humidifier

SIZES

018--070

Connect
SIZE

wiring,

humidifier

and humidistat

to fan coil unit as shown

in Fig. 24 and 25. The cooling

lockout

relay

is optional.

(See Fig. 24.)

071

Terminals
HUM1 and HUM2 are provided for direct connection
to the low-voltage
control of a humidifier
through a standard humidistat.
These
terminals
are energized with 24-vac when G thermostat
signal is present. (See Fig. 27.) Alternately,
the 24vac signal may be sourced from the W
and C terminal block connections.
12

LOW VOLTAGE TERMINAL
PRINTED

BLOCK

CIRCUIT BOARD --___

MOLEX 12-PIN CONNECTOR

A95275

Fig. 21--Detail

EASY SELECT

of PFIMNB071

Printed-Circuit

Board

FAN COIL
AUX1 AUX2
(C)
(G)
r'_J

230VAC OR
115 VAC BRANCH CKT
GND HOTNEUT

cl _

WriT
TO EAC

A95277

Fig.

22--PCB

Mounted

with

Wiring

Cleaner

Relay

and

Accessory

Air

A98625

Fig. 23--EAC

Relay Wiring

Schematic

FAN COIL
CONTROL)

THERMOSTAT

HEAT PUMP
CONTROL

gS._ R
_G
FAN COIL
CONTROL

THERMOSTAT

_--c

_-_R
W3

[]
[]
%:

,
W2
O

[]

I
I

I ........

I
I

C:5 y

I
L

--I

I
m

FAN HUMIDIFIE

:I / BL55_ W3

AIR COND.

I I

_1 ..........

RELAY

_,',

L____I

I I

-11

[]

I
L--4

......

FAN HUM_

H_AT
A95295

A95294
Fig. 24--Wiring

Layout

of Humidifier

Fig.

25--Wiring

Layout

to Heat Pump

of Humidifier
Electric
Heat

Fan

Coil

with

SPDT
24VAC COIL
230VAC 15A
CES0130003

FAN RELAY

1TO!

HUMIDISTAT

HUM 1

(c)

DEHUMIDISTAT
(OPENS ON RISE)

SPEED
MOTOR

TO HUMIDIFIER

24-VAC

HUM 2

(G)

HUMIDIFIER

WIRING

A95296

PROCEDURE

Fig. 26--Latent
9--SEQUENCE

Fan Coil Sequence

018-070

CONTINUOUS
Thermostat

Fig. 27--Humidifier

of Operation

R to G. G energizes

energizes

Pan relay

on PCB which

R to G, R to Y, and R to O (heat pump

Thermostat
energizes R to G and R to Y. G energizes
there is a 90 sec delay before Pan relay opens.
PUMP

HEATING

WITH

AUXILIARY

only).

circuit

G is de-energized

there

to indoor blower

motor.

When

G is de-energized,

there is a 90

Pan relay on PCB which completes

circuit

to indoor

blower

motor.

opens.

Pan relay on PCB which completes

ELECTRIC

is a 90 sec delay before

G energizes

tim relay

circuit

to indoor blower

motor.

When

G is de-energized,

HEAT

Thermostat
energizes R to G, R to Y, and R to W. G energizes
electric heat relay(s) which completes circuit to heater element(s).
When

completes

opens.

When G is de-energized,
there is a 90 sec delay before
HEAT PUMP HEATING
MODE

HEAT

Wiring

FAN

closes

sec delay before relay
COOLING
MODE
Thermostat

A95317

Capacity
Control
OF OPERATION

Pan relay

fan relay on PCB which
When W is de-energized,
opens.
14

completes
circuit to indoor blower motor. W energizes
electric heat relay(s) opens turning off heater elements.

ELECTRIC

HEAT

OR EMERGENCY

HEAT

Thermostat
closes R to W. W energizes
nonnally
closed contacts
on fan relay.
de-energized
B.

after heater

PF1MNB071

closes

COOLING

MODE

Thermostat

closes

HEAT

R to Y/Y2,

HEATING
circuit

of Operation

closes

fan airflow.

single-speed

02"W2. Fan coil delivers

electric

cooling

airflow.

MODE
the selected

heat airflow.

MODE

circuit

R to Y/Y2,

HEATING

closes

runs at continuous

R to O, and R to G. Fan coil delivers

R to W_W1,

HEATING

PUMP

Thermostat

opens.

R to G. The blower

circuits

HEAT

PUMP

HEAT

circuit

closes

Thermostat

motor is energized
through
elements.
Blower motor is

FAN

Thermostat

electric heat relay(s) which completes
circuit to heater element(s).
Blower
When W is de-energized,
electric heat relay(s)
opens turning off heater

Fan Coil Sequence

CONTINUOUS

ELECTRIC

relay(s)

MODE

WITH

circuits

and R to G. Fan coil delivers

AUXILIARY

R to Y_Y2 and.or

ELECTRIC

single-speed

heat pump

heating

airflow.

HEAT

R to Y1 with R to W_W1 or W2 (and R to O in the case of defrost).

In the event that electric

heating

is called for by thermostat while heat pump is also operating in either heating or defrost mode, the motor will modify its airflow output, if necessary,
to provide an airflow which is defined as sate for operation
of electric heater during heat pump operation.
That airflow is the greater of the heat
pump

heating

airflow

Refer

to outdoor

and the electric

heater

only airflow.
START-UP

unit

PROCEDURE

Installation

1--EASY

Instructions

SELECT

for system

CONFIGURATION

The EASY SELECT
taps are used by the installer
pre-programmed
table of airflows. Airflows
are based
inputs

such as the need

for de-humidification.

The fan coil nmst be configured
(see infonnation
A.

printed

AUXILIARY

Installer

nmst

HEAT

select

properly

board

label located

KW/CFM

the auxiliary

heat

instructions

TAPS

(SIZE

and refrigerant

charging

method

details.

071 ONLY)

to configure
a system.
on system size or mode

The ECM uses the selected taps to modify its operation
to a
of operation
and those airflows are modified
in response to other

(See Fig. 21.)

to operate

on circuit

start-up

Select

with system

heater

airflow

components

next to select pins),
range

approved

with which
move

for size

of electric

for application

it is installed.

the 6 select

To successfully

wires to the pins which

heater

with kw size heater

a basic

system

match the components

configure

used.

installed
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

If no heater

is installed,

this step can be

For increased comfort select the nan'owest
than the minimum
CFM for electric heater

application
with the size system installed for safe and continuous
operation.
(See Tables 1 and 2 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
and electric heater airflow to ensure safe heater operation.
B.

AC/HP

SIZE --

The _actory

setting

Select

system

for air conditioner

electric heaters are energized, the ECM will run the higher of heat pump heating airflow
The factory selection is the largest heater range approved. (See Fig. 21, A as indicated.)

size installed

02"heat pump

size is the largest

unit meant

for application

with the model

needs to select the air conditioner
or heat pump size to ensure that airflow delivered falls within proper range
to all operational
modes with the exception
of electric heat modes. (See Fig. 21, B as indicated.)
C.

SYSTEM

TYPE

The type of system
1. AC

Select

nmst

CFMiton

The factory

Provides

cooling

setting

AC/HP

To provide

airflow

AC or HP

approximately

315 CFMiton

for good humidity
Efficiency

provides

for higher

normal

heating

air delivery

temperature.

same airflow

for heating

and cooling

modes

to increase

Select

at the rates described

Medium,
above,

Low,

approximately

350

overall

HP efficiency;

approximately

the ACHP

or High airflow
ADJUST

select

is factory

set to the nominal

individual

DELAY
operation

installation
Select

delay profiles

needs

desired

for such things
time

are provided

delay

(nom)

tap. The adjust

selections

as noise,

comfort,

and humidity

removal.

options

(See Fig. 21, D as indicated.)

profile

to customize

and enhance

system

operation.

(See Fig. 21, E as indicated)

----) NOTE:
The ON/OFF time delay profiles are active only in heat pump only heating and cooling modes.
In auxiliary heat modes, there is a zero on delay and a one minute off delay programmed
into the motor
Selection

Provides

removal.

HILO

airflow supplied for all operational
modes, except non-heat pump heating modes. HI provides 15 percent airflow over nominal unit
and LO provides
10 percent airflow below nominal unit size selected. The adjust selection options are provided to adjust airflow

to meet

ON/OFF

Four motor

This applies

is AC. (See Fig. 21, (7 as indicated.)

CFM ADJUST

will regulate
size selected

installed

The installer

be selected:

3. HP-EFF
Heat Pump
350 CFMiton.

supplied

type

coil purchased.

Air conditioner

2. HP-COMFORT

system

of_an

lbr the size unit installed.

are:
15

that cannot

be oven'idden.

i. Thestandard
90secoffdelay
(Factory
setting)
at100percent
airflow.
2. No delay

option

used

for servicing

unit

3. A 30 sec on delay with no airflow/90
to heat-up/cool-down
4. ENH,

enhanced

This profile
F.

selection,

CONTINUOUS

2. MED

factory

speed

move

3. HI speed
G.

setting,

move

LOW-VOLTAGE

connector
CIRCUIT

in heat pump

desired

fan

50% cooling

connector

at 100 percent

to perlbrm

airflow

a 30 sec on delay with no airflow/plus

cold blow
Select

is utilized

profile

delay

functions.

is used when it is desirable

to allow

system

coils time

with the airflow.

provides

FAN --

i. LO speed

sec off delay

in conjunction

will minimize

or when a thermostat

to MED,

mode
65%

AND

and could

when

thermostat

speed

150 sec at 70 percent
enhance

system

airflow/no

off delay for added

comfort.

efficiency.

is set on continuous

fan

airflow
cooling

of HI, 100% cooling
FUSING

operation

mode

airflow

airflow.

(See Fig. 21, F as indicated.)

REFERENCE

The low-voltage
circuit is fused by a board mounted
5-amp automotive
fuse placed in series with the transformer
SEC2 and the R circuit. The C
circuit of the transformer
is referenced to chassis ground through a printed circuit run at SEC 1 connected
to metal standoff marked with ground
symbol.
EASY SELECT
BOARD TERMINAL
BLOCK

.....

]

HUMIDISTAT

REMOVEJEl-

.....

JUMPER

J
A95316

Fig. 28--Humidistat
H.

De-Humidify

SIZES

018--070

(LATENT

CAPACITY

of latent

071 (HUMIDISTAT

capacity

cooling

CONTROL)

CONNECTION)

mode

airflow.

This reduction

its contacts. When contacts close, airflow
a standard humidistat.
(See Fig. 28.)

the field wiring
contacts opening

will increase

will returu

system

Consult

high performance

your

The ability

local

and minimize

dealer as to proper

to properly

perform

possible

frequency

maintenance

z_
must

service

CAUTION:
Never operate
unit without
be used when locating
the filter inside

a field-supplied

filter

must

be installed

cooling

it is essential

and availability
requires

recommended

until humidity
airflow.

terminals
its airflow

falls to a level which causes humidistat

To activate

this mode,

remove

certain
or required

that periodic

maintenance

of a maintenance

duct

Jnmper

to close

J1 and wire in

mechanical

skills

be performed

system.

on this equipment.

contract.
and tools. If you do not possess

is filter replacement

or cleaning

on a monthly

a filter. Damage
to blower motor or coil may result.
Factory
the unit. For those applications
where access
to an internal

in the return

for use of a standard
to approximately
80%

MAINTENANCE

failure,

of maintenance

on this equipment

your dealer for maintenance.
The only consumer
are available from your local dealer distributor.

AND

equipment

terminal block provides
connection
on increasing humidity and reduce

latent capacity

to 100% of selected

CARE
To continue

Mode

control.

If increased
latent capacity is an application
requirement,
humidistat.
The 071 size fan coil will detect the humidistat
of nominal

for De-Humidify

Mode

See Fig. 26 for wiring
SIZE

Wiring

these,

contact

basis. New filters

authorized
filter kits
filter is impractical,

Table I--PFIM
UNIT
FAN
SIZE

071

OUTDOOR
INIT
(APA(ITY
BTUH

ELECTRIC

NOM

36.000

1100

1250

1350

42.000

1t40

1270

1460

1350

1460

1525

48.000

1305

1450

1665

1350

1450

1665

1525

1665

1750

1810

2085

1630

1810

2085

1630

1810

2085

1750

1810

2085

60.000
• Airflow

not

Airflow Delivery (CFM)

recommended

1630
for

heater/system

HEATER K'W I_NGE

size.

NOTE: LO, NOM, and HI refer to AC/HP CFM ADJUST selection.
Table
FAN
COIL
INIT

071

NOTES:
1 Heater Only--Air conditioner
2 These airflows are minimum

HEAT PUMP
UNIT
SIZE

2--PFIM

Minimum

CFM for Electric

Heater

Application
CF3I

HEATER

SIZEK_V

8. 9. 10

18. 20

24. 30

Heater Only
036

1050

1750

1100

1350

042

1125

1350

048

1300

1350

1465

1750

060

1625

1750

with electric heater application
acceptable airflows as UL listed Actual airflow delivered

will be per airflow delivery

chart for Electric Heating

Modes.

7310 W. Morris St, Indianapolis,

IN 46231

impflm04

Catalog

No. 53PF-1M5

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PAYNE Air Handler (indoor Blower&evap) Manual L0411007

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