PAYNE Package Units(both Units Combined) Manual L0610782

User Manual: PAYNE PAYNE Package Units(both units combined) Manual PAYNE Package Units(both units combined) Owner's Manual, PAYNE Package Units(both units combined) installation guides

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Installation Instructions
NOTE:
Read
installation.

the entire

instruction

TABLE

manual

before

starting

the

OF CONTENTS
Page

SAFETY

CONSIDERATIONS

INTRODUCTION
RECEIVING

Unit

Inspect

Shipment

Slab Mount

2
2

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

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

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

Mount

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

Clearances

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

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

Select and Install Ductwork
Configuring
Connect

2-10

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

Unit Support

Place Unit

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

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

Identify

Provide

AND INSTALLATION

Ground

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

Check Equipment

Provide

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

Units for Downflow

Condensate

Install Electrical
High-Voltage
Routing

Connecting

Drain

START-UP

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

Connections

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

Leads Into Unit .....................
Lead to Unit Ground

Power

Electric

Wires

Heat Wiring

A05194

3
5

Control

PRE-START-UP

. . . 3

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

Ground

Accessory

(Vertical) Discharge

Connections

Power

Routing

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

6
.............

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

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

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

7-17

Fig. 1 - Unit PH3Z
Cooling

Operation

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

Heating

Operation

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

Continuous
Defrost
Electric

Start-Up

Cooling

Checking

Charge

No Charge

and Heating

Control

7
...............
Operation

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

Cooling

Indoor Airflow
Unit Controls

Adjustments

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

and Airflow

......

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

Mode Charge

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

Low Charge
Heating

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

and Make Adjustments

Cooling

Refrigerant

Leaks

8
...............

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

Loss-of-

Relief Valve

Charge Switch

Compressor

Overload

Compressor

Rotation

Sequence

of Operation

Fan Operation

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

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

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

and Motor

Outdoor

Fan

Indoor

17
17-20

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

(;oil, Indoor

Coil. and Condensate

and Wiring

Circuit

Airflow

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

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

Controls

Refrigerant

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

18
Drain Pan

....

19
19

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

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

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

19
20
20

8
9
9
9
9

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

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

Heating

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

Outdoor

Metering
Liquid

High-Pressure

Resistance

Blower

Electrical

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

Unit Top Removal
Indoor

Fan ................................

MAINTENANCE
Air Filter

Check for Refrigerant

9, 17

High

Devices

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

Line Strainers
Flow Valves

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

TROUBLESHOOTING
START-UP

CHECKLIST

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

20
20
20
20
24

SAFETY
CONSIDERATIONS
Installation
and
servicing
ofthisequipment
canbehazardous
dueto
mechanical
andelectrical
components.
Onlytrained
andqualified
personnel
should
install,
repair,
orservice
thisequipment.
Untrained
personnel
canperform
basic
maintenance
functions
such
ascleaning
andreplacing
airfilters.
All other
operations
must
be
performed
bytrained
service
personnel.
When
working
onthis
equipment,
observe
precautions
intheliterature,
ontags,
andon
labels
attached
to or shipped
withtheunitandothersafety
precautions
thatmayapply.
Follow
allsafety
codes.
Installation
mustbeincompliance
with
localandnational
building
codes.
Wear
safety
glasses,
protective
clothing,
andworkgloves.
Have
fireextinguisher
available.
Read
these
instructions
thoroughly
andfollowallwarnings
orcautions
included
inliterature
andattached
totheunit.
Recognize
safety
information.
Thisisthesafety-alert
symbol
'_.
When
yousee
thissymbol
ontheunitandininstructions
ormanuals,
bealert
tothepotential
forpersonal
injury.
Understand
these
signal
words:
DANGER.
WARNING,
andCAUTION.
These
words
are
used
withthesafety-alert
symbol.
DANGER
identifies
themost
serious
hazards
whichwillresult
insevere
personal
injuryordeath.
WARNING
signifies
hazards
which
couldresult
inpersonal
injury
ordeath.
CAUTION
isused
toidentify
unsafe
practices
which
may
result
inminorpersonal
injuryorproduct
andproperty
damage.
NOTE
isused
tohighlight
suggestions
whichwillresult
in enhanced
installation,
reliability,
oroperation.

Step 2--Provide
For hurricane
(Professional
SLAB

IDENTIFY

UNIT

The unit model
informative
INSPECT

number

and serial number

plate. Check this information

are printed
against

on the unit

shipping

papers.

damage

while unit is still on shipping

pallet. If

unit appears to be damaged or is torn loose from its anchorage, have
it examined by transportation
inspectors before removal. Forward
claim papers directly to transportation
company. Manufacturer
is
not responsible

for details

and PE

if required.

Place the unit on a solid, level concrete
in. thick with 2 in. above grade.

pad that is a minimum of 4
The slab should
extend

approximately
2 in. beyond the casing on all 4 sides of the unit. Do
not secure the unit to the slab except when required by local codes.
A 6-in. wide gravel apron should be used around the flat surface to
prevent airflow blockage
by grass or shrubs. The unit should be
level To within
properly.
GROUND

1/4 in. This is necessary

for the unit drain to function

MOUNT

The unit may be installed

either on a slab or placed

directly

ground if local codes permit. Place the unit on level ground
with gravel for condensate
discharge.
Step 3--Provide
The

required

Adequate

on the

prepared

Clearances
minimum

ventilation

service

clearances

and outdoor

are shown

in Fig. 5.

air must be provided.

The outdoor fan draws air through the outdoor coil and discharges
it through the top fan grille. Be sure that the fan discharge does not
recirculate to the outdoor coil. Do not locate the unit in either a
corner or under an overhead obstruction.
The minimum clearance
under a partial overhang (such as a normal house overhang) is 48 in.
above the unit top. The maximum horizontal extension of a partial
overhang must not exceed 48 in.
Do not restrict outdoor

either the outdoor-air
to compressor

airflow. An air restriction

inlet or the fan discharge

may be detrimental

life.

Do not place the unit where water, ice. or snow from an overhang
or roof will damage or flood the unit. Do not install the unit on
carpeting
or other combustible
materials.
Slab-mounted
units
should be at least 4 in. above the highest expected water and runoff
levels. Do not use unit if it has been under water.
Unit

Unit can be moved with the rigging

holds provided

in the unit base.

Refer to Table 1 for operating
weights. Use extreme caution to
prevent damage when moving the unit. Unit must remain in an
upright position during all moving operations.
The unit nmst be
level within
1/4 in. for proper
condensate
drainage;
the
ground-level
pad must be level before setting the unit in place.
When a field-fabricated
support is used. be sure that the support is
level and that it properly
Step 5--Select

supports

and Install

the unit.

Ductwork

The design and installation of the duct system must be in accordance
with the standards
of the NFPA for installation of non-residence
type air conditioning
and ventilating
systems. NFPA 90A
residence type, NFPA 90B and/or local codes and ordinances.
Select and size ductwork,

supply-

air registers,

and return air grilles

according
to
ASHRAE
(American
Society
of Heating,
Refrigeration,
and Air Conditioning
Engineers) recommendations.

SHIPMENT

Inspect for shipping

distributor

Certificate,

MOUNT

Step 4--Place

INTRODUCTION
ThePH3Zpackaged
heatpumpis fullyself-contained
and
designed
foroutdoor
installation
(See
Fig.1).Standard
unitsare
shipped
inahorizontal-discharge
configuration
forinstallation
on
aground-level
slab
ordirectly
ontheground
iflocalcodes
permit.
Standard
unitscanbeconverted
todownflow
(vertical)
discharge
configurations
for rooftopapplications
witha fieldsupplied
plenum.
RECEIVING
ANDINSTALLATION
Stepl--Check Equipment

contact

Engineering)

IMPORTANT:

ELECTRICAL
SHOCK
HAZARD
Failure
tofollowthiswarning
could
result
inpersonal
injury
ordeath.
Before
installing
orservicing
system,
always
turnoffmain
power
tosystem.
There
maybemore
thanonedisconnect
switch.
Turnoffaccessory
heater
power
switch
ifapplicable.

Unit Support
tie downs,

for any damage

incurred

in transit.

Check all items

against shipping list. Immediately
notify the nearest Payne office if
any item is missing. To prevent loss or damage, leave all parts in
original packages until installation.

Use the duct flanges provided
on the supplyand return-air
openings on the side of the unit. See Fig. 5 for connection
sizes and
locations. The 14-in. round duct collars are shipped inside the unit
attached to the base pan in the indoor blower compartment.
They are
field-installed
and must be removed
from the indoor blower
compartment
installation.

prior

to start-up,

even

if they

are not

used

for

When
designing
andinstalling
ductwork,
consider
tirefollowing:

UNITDAMAGE
HAZARD
Failure
tofollowthiscaution
mayresult
indamage
tounit
components.
When
connecting
ductwork
tounits,
donotdrilldeeper
than
3/4inchin shaded
area
shown
in Fig.2 or coilmaybe
damaged.
1.Allunits
should
have
field-supplied
filters
oraccessory
filter
rackinstalled
in the return-airsideof the unit.
Reconmmnded
sizes
forfilters
areshown
inTable
1.
2.Avoidabrupt
ductsizeincreases
andreductions.
Abrupt
change
inductsizeadversely
affects
airperformance.
IMPORTANT:
Useflexible
connectors
between
ductwork
and
unittoprevent
transmission
ofvibration.
Usesuitable
gaskets
to
ensure
weather-tight
andair-tightseal.Whenelectric
heatis
installed,
usefireproof
canvas
(orsimilar
heatresistant
material)
connector
between
ductwork
andunitdischarge
connection.
If
flexible
ductisused,
insert
asheet
metal
sleeve
inside
duct.
Heat
resistant
ductconnector
(orsheet
metal
sleeve)
must
extend
24-in.
fromelectric
heater
element.
3.Size
ductwork
forcooling
airquantity
(cfm).
Theminimum
airquantity
forproper
electric
heater
operation
islisted
in
Table
2.Heater
limitswitches
maytripatairquantities
below
those
recommended.
4.Seal,
insulate,
and
weatherproof
allexternal
ductwork.
Seal,
insulate
andcover
withavapor
barrier
allductwork
passing
through
conditioned
spaces.
Follow
latest
Sheet
Metal
and
Air Conditioning
Contractors
NationalAssociation
(SMACNA)
andAirConditioning
Contractors
Association
(ACCA)
minimum
installation
standards
forresidential
heating
andairconditioning
systems.
5.Secure
allducts
tobuilding
structure.
Flash,
weatherproof,
andvibration-isolate
ductopenings
in wall or roof
according
togoodconstruction
practices.
Figure
4shows
atypical
ductsystem
withPH3Z
unitinstalled.

CONFIGURING
UNITSFORDOWNFLOW
(VERTICAL)
DISCHARGE

ELECTRICAL

19.17 -----------_

_---

HAZARD

Failure to follow this warning
or death.

could result in personal

injury

Before performing
service or maintenance
operations
on the
system, turn off main power to unit and install lockout tag.
Units are dedicated

side supply

products.

to vertical air supply. A field-supplied
convert to vertical air discharge.
Step 6--Connect

Condensate
installing

They are not convertible
plenum

must be used

Drain

NOTE:

When

comply

with local codes and restrictions.

condensate

drain connection

be sure to

Unit removes condensate
through a 1-3/64
in. ID hole (using
3/4-in. OD piping or tubing) which is located at the end of the unit.
See Fig. 5 for location of condensate
connection.
Condensate

water can be drained

directly

onto tire roof in rooftop

installations
(where permitted)
or onto a gravel apron in ground
level installations.
Install a field-supplied
condensate trap at end of
condensate
connection
to ensure proper drainage. Make sure that
the outlet

of the trap

is at least

1 in. lower

than the drain

pan

condensate
connection
to prevent the pan from overflowing
(See
Fig. 3 and 4). When using a gravel apron, make sure it slopes away
from the unit.
If the installation

requires draining

the condensate

water away from

the unit, install a 2-in. trap using a 3/4-in. OD tubing or pipe. (See
Fig. 3 and 4.) Make sure that the outlet of the trap is at least 1 in.
lower than the unit drain-pan condensate connection to prevent the
pan from overflowing.
tube using a minimum

Prime the trap with water. Connect a drain
of 3/4-in. PVC, 3/4-in. CPVC, or 3/4-in.

copper pipe (all field supplied). Do not undersize the tube. Pitch the
drain tube downward at a slope of at least 1 in. for every 10 ft of
horizontal run. Be sure to check the drain tube for leaks. Prinm trap
at the beginning of the cooling season start-up. Allowable glues for
condensate
trap connection
are: Standard ABS, CPVC, or PVC
cenmnt..
1" (25mm)

•,_-._

SHOCK

MIN.

r'_,.

TRAP ET ___

2"(50mm)MIN.

099013

Fig. 3 - Condensate
o

Trap
TRAP
OUTLET

o
o

2" min.

A05195

Fig. 2 - Area

Not to be Drined

Than

3/4-in.
C00009

Fig. 4 - PVC Condensate

Trap

_GU_
BOITO_ OF U_IT

I_DO0_

CLEARANCES
TO CO_5T_LE

MATL

lop o} _
SIDE 6_ _[_

o
OPPOSHED_C_ OPENINGS

NEC._E_ED_L_3R_.

OUIDOOR
COIL

6ROU_£_ S_RFAC_S PO_ER t_

SIDEO_ _T
g12fl
[3199_
_0110_ 0F

SI_E

OPPOS]_[ DUCTOP[NI_GS

_OG68 [42 00_

........

0 [_000)

UNII

LEFT SIDE VIEW

A05201

UNIT
PH3Z024

UNIT HEIGHT
IN. [MM]

UNIT WEIGHT

ELECTRICAL
CHARACTERISTICS
208/230-1-60

Ib
283

kg
133

CENTER

OF GRAVITY
IN. [MM]

30.13 [765]

14.0 [356]

19.0 [483]

15.0 [381]
16.0 [4061

PH3Z030

208/230-1-60,

208/230-3-60

324

147

34.13 [867]

14.0 [356]

19.0 [483]

PH3Z036

208/230-1-60,

208/230-3-60

377

171

42.13 [10701

14.0 [356]

19.0 [483]

19.8[503]

PH3Z042

208/230-1-60,

208/230-3-60

389

177

42.13 [1070]

14.0 [356]

19.0 [483]

21.9 [556]

PH3Z048

208/230-1-60,

208/230-3-60

384

175

42.13 [1070]

14.0 [356]

19.0 [483]

19.8[503]

PH3Z060

208/230-1-60,

208/230-3-60

433

197

42.13 [1070]

14.0 [356]

19.0 [483]

21.9 [556]

Fig. 5 - Unit Base Dimensions,

PH3Z024-060

(UNIT AND

Power WMng

Control

DRAIN
CONNECTION

Widng

ondenser

Evaporator

Airflow

"Separate disconnect per NEC
National Electrical Code required
i_r e ectr c heater when s ng epoint connection is not used

C00008

Fig. 6 - Typical

Installation

Table
UNIT SIZE
NOMINAL

CAPACITY

OPERATING

l--Physical

Data

024

030

036

042

048

(ton)

2 - 1/2

3 - 1/2

(lb.)

293

324

377

389

384

433

WEIGHT

COMPRESSOR

Scroll

REFRIGERANT
Quantity (lb.)

(R-22)

REFRIGERANT

METERING

7.5

Ultra Tech Scroll
10.3

10.3

DEVICE

AccuRater
0.067

0.067

0.082

0.049

0.057

0.059
Copper

Face Area (sq. ft.)

11.4

13.3
TXV

Orifice OD (in.)
Rows... Fins/in.

11.9

Orifice ID (in.)
CONDENSER COIL

060

0.086
0.063

Tubes,

Aluminum

0.070

0.073

Plate Fins

2...21

11.1

12.7

15.8

13.3

15.8

33OO

CONDENSER FAN

Propeller

Nominal Cfm

2600

3200

32OO

1/8 (825)

1/4 (1100)

1/4 (t100)

3...17

4...17

4.3

4.9

Diameter
Motor HP (RPM)
EVAPORATOR COIL

Copper

Rows... Fins/in.
Face Area (sq. ft.)

Tubes,

Aluminum

1/4 (t100)

1/2 (t100)

4...17

6.1

4.9

6.1

Plate Fins

Direct Drive

Evaporator blower
Nominal Airflow (Cfm)

8OO

1000

1200

1400

16OO

Size (in.)

10x8

11x9

11x10

1/2 (t050)

3/4 (1050)

1 (1050)

1(1050)

24 x 30

30 x 30

Motor HP (RPM)
CONNECTING DUCT SIZES

Round
14

Supply Air (in.)

Return Air (in.)
Return-Air
*Required

1875
11x10

24 x 24

Filters (in.)* Throwaway

24 x 24

filter sizes shown are based on the ARI (Air Conditioning

& Refrigeration

24 x 24

Institute) rated airflow at a velocity of 300 ft/min for throwaway

type or 450

ff/min for high capacity type. Recommended filters are I -in. thick.
Table

Unit Size

2--Minimum

Airflow

for Safe

Electric

Heater

Operation

5kW

Minimum Airflow (CFM)
7.5kW
10kW
15kW

20kW

024

500

650

750

030

600

800

1050

036

600

800

1050

1150

1200

042

600

800

1050

1150

1200

048

600

800

1050

1150

1200

060

600

800

1050

1150

1200

UNIT

COMPONENT

Electrical

Connections

HAZARD

Failure to follow this caution may result in damage
being installed.

to the unit

1. Make

with NEC

all electrical

ANSI/NFPA
governing
connections

connections

in accordance

(latest edition) and local electrical codes
such
wiring.
In Canada,
all electrical
must be in accordance with CSA standard

(;22. i Canadian
Step 7--Install

DAMAGE

Electrical

('ode Part i and applicable

codes. Refer to unit wiring

local

diagram.

2. Use only copper
conductor
for connections
between
field-supplied
electrical disconnect
switch and unit. DO
NOT USE ALUMINUM
WIRE.
ELECTRICAL

SHOCK

HAZARD

Failure to follow this warning
or death.

could result in personal

injury

The unit cabinet must have an uninterrupted,
unbroken
electrical ground to minimize the possibility of personal injury
if an electrical fault should occur. This ground may consist of
an electrical wire connected to the unit ground screw in the
control compartment,
or conduit approved for electrical
ground when installed in accordance with NEC, ANSI/NFPA
American
National
Standards
Institute/National
Fire
Protection Association
(latest edition) (in Canada. Canadian
Electrical Code CSA (;22.1) and local electrical codes.

3. Be sure that high-voltage
voltage range indicated

power to unit is within operating
on unit rating plate. On 3-phase

units, ensure phases are balanced within 2 percent.
local power company for correction
of improper
and/or phase imbalance.

Consult
voltage

4. Do not damage internal components when drilling through
any panel to mount electrical hardware, conduit, etc.
HIGH-VOLTAGE

CONNECTIONS

The
unit must have
a separate
field-supplied,
waterproof disconnect

electrical
service
with
a
switch mounted at, or within

sight from the unit. Refer to the unit rating plate. NEC and local
codes for maxinmm fuse/circuit breaker size and minimum circuit
amps (ampacity)

for wire sizing

(See Table 5 for electrical

data).

The field-supplied
disconnect may be mounted on the unit over the
high-voltage
inlet hole when the standard power and low-voltage
entry points are used. See Fig. 6 and 7 for acceptable

location.

Operation
ofunitonimproper
linevoltage
constitutes
abuse
and
maycause
unitdamage
thatcould
affect
warranty.
ROUTING
POWER
LEADS
INTOUNIT
Useonlycopperwirebetween
disconnect
andunit.The
high-voltage
leads
should
beinaconduit
untiltheyenter
theunit;
conduit
termination
attheunitmustbewatertight.
Runthe
high-voltage
leads
through
theholeonthecontrol
boxside
ofthe
unit(See
Fig.7).When
theleads
areinside
theunit,runleads
tothe
control
box(See
Fig.8).Forsingle-phase
units,
connect
leads
tothe
black
andyellow
wires(See
Fig.9).
CONNECTING
GROUND
LEADTOUNITGROUND
Connect
theground
lead
tothechassis
using
theunitground
inthe
control
box(See
Fig.8and9).
ROUTING
CONTROL
POWER
WIRES
(24-V)
Form
adrip-loop
withthethermostat
leads
before
routing
them
into
theunit.Route
thethermostat
leads
through
grommeted
hole
provided
in unitintounitcontrol
box(SeeFig.7).Connect
thermostat
leads
and
unitpower
leads
asshown
inFig.9,10and11.
Route
thermostat
wires
through
grommet
providing
adrip-loop
at
thepanel.
Connect
low-voltage
leads
tothethermostat
asshown
in
Fig.10&11.
Theunittransformer
supplies
24-vpower
forcomplete
system
including
accessory
electrical
heater.
Transformer
isfactory
wired
for230-voperation.
ACCESSORY
ELECTRIC
HEAT
WIRING
Referto accessory
electric
heatinstallation
instructions
for
information
oninstalling
accessory
electric
heat.
Accessory
electric
heat
wiringisshown
inFig.12,13,14and15.
HIGH-VOLTAGE
WIRING

ENTRY

POWER

LOW-VOLTAGE

HOLE

ENTRY

HEATER LOW
•VOLTAGE PLUG

A05388

Fig. 8 - Control

Box Widng

UNIT GROUND
GROUND
LEAD
SINGLE-PHASE
Z_ BLK- w
CONNECTIONS
3-PHASE
CONNECTIONS TO DISCONNEC_
L_ ......
_YELTO DISCONNECT PERNEC
PER NEC
L ................................
_:Z_BLU-

CO00i2

Fig. 9 - Line Power

WIRING

Connections

HOLE

o; o//

°o/

BRN

RED

GRN

Thermostat
and subbase

Unit Control
Power

A05198

Fig. 7 - Unit Electrical

Connection

A05207

Fig. 10

Control

Connections

(Sizes 024-042)

d. Ensure

wires do not touch

refrigerant

tubing

or sharp

sheet metal edges.
e. Inspect

coil

handling,

fins.

carefully

4. Verify the following

damaged

straighten

during

shipping

and

fins with a fin comb.

conditions:

a. Make sure that outdoor-fan
blade is correctly positioned
in fan orifice. Top edge of blade should be 3.125 in. down
from outdoor

coil outlet grille or hub should be 0.708-in.

away from motor end bell (See Fig. 19). See Outdoor
Adjustment
section.

Fan

b. Make sure that air filter is in place.
c. Make sure that condensate
drain pan and trap are filled
with water to ensure proper drainage.
d. Make sure that all tools
have been removed.

Thermostat
and subbase

and miscellaneous

loose

parts

START-UP
Unit Control
Power

Step 1--Check

for Refrigerant

Leaks

A05208

Fig. 11 - Control

Connections

PRE-

Proceed as follows
charge the unit:

(Sizes 048-060)

START-

to locate

1. Locate leak and make sure that refrigerant
has been relieved and reclaimed
from

low-pressure

EXPLOSION,

ELECTRICAL

SHOCK

HAZARD

Failure to follow this warning could result in personal
or death and/or property damage.
1. Follow
goggles

recognized
safety practices
when checking or servicing

and wear
refrigerant

NOTE:

attempt

repair

soldered

connection

5. To remove

a component,

proceed as follows:
a. Shut off electrical
tag.

wear
power

protective

when

as follows

1. Remove

System
and

from unit.
tubing stubs

Oil can ignite when exposed

when

broken

to inspect and prepare the unit for initial start- up:

inspections:

for shipping

and

handling

damages,

lines, loose parts, disconnected

such

,,vires, etc.

b. Inspect for oil at all refrigerant tubing connections
and on
unit base. Detecting oil generally indicates a refrigerant
leak. Leak test all refrigerant tubing connections
using
electronic leak detector,
or liquid-soap
refrigerant leak is detected, see Check
Leaks section.
c. Inspect

all field-

sure that connections

operating

Adjustments

the unit. Do not operate

CHECKING
OPERATION

COOLING

Start and check
follows:

the unit for proper

2. Place SYSTEM

to flame.

with unit.

a. Inspect

and Make

the unit in cooling

mode

AND

HEATING

cooling

CONTROL

control

operation

in ON position and shuts down within 60 sec. (for 024-042)
or 90 seconds (for 048 and 060) when FAN switch is placed
in AUTO position.

all access panels.

3. Make the following

Cooling

1. Place room thermostat SYSTEM
switch in OFF position.
Observe that blower motor starts when FAN switch is placed

2. Read and follow instructions on all DANGER, WARNING.
CAUTION.
and INFORMATION
labels attached
to or
shipped

has been opened

to unit and install lockout

cutter and remove component
d. Carefully
unsweat remaining

Proceed

the system

when the outdoor temperature
is below 40°F (unless accesso_
low-ambient
kit is installed). Do not rapid cycle the compressor.
Allow 5 min. between "on" cycles to prevent compressor
damage.

b. Relieve and reclaim all refrigerant from system
using both high- and low-pressure
ports.
c. Cut component
connecting
tubing with tubing

necessary.

practices.

Complete
the required
procedures
given in the Pre-Start-Up
section before starting the unit. Do not jumper any safety devices

while

goggles

accepted

Install a filter drier whenever

Step 2--Start-Up

protective
system.

refrigerant system is under pressure.
4. Do not use torch to remove any component.
contains oil and refrigerant under pressure.

system pressure
both high- and

for repair.

injury

2. Relieve and recover all refrigerant
from system before
touching
or disturbing
anything
inside tenninal box if
refrigerant leak is suspected around compressor terminals.
3. Never

leak and to

ports.

2. Repair leak following
FIRE,

and repair a refrigerant

and factory-wiring
are completed

solution.
If a
for Refrigerant

and tight.

position

and FAN switch

motors start and that reversing valve shifts. Observe that
cooling cycle shuts down when control setting is satisfied.
Reversing
3. Place

valve (RV) remains

system

switch

energized.

in HEAT

position.

Observe

that

compressor, indoor fan and outdoor fan energize (Reversing
Valve is deenergized
in heat pump heating mode). Set
control above room temperature.
Observe that heating cycle
shuts down when control

setting is satisfied.

4. When using an automatic
changeover
room thermostat,
place both SYSTEM and FAN switches in AUTO positions.
Observe

that

unit

operates

Cooling

temperature
control is set to call for Cooling
temperature),
and unit operates
in Heating
temperature
control is set to call for Heating
temperature).

connections.

switch in COOL

in AUTO position.
Set control below room temperature.
Observe that compressor,
outdoor fan, and indoor blower

mode

when

(below room
mode when
(above room

Table

3--Required

REQUIRED
Mode[ Size
048
O6O

75 (24)
17.5 (9.7)

82 (28)
17 (9.4)

85 (29)
16.5 (9.2)

95 (35)
16 (8.9)

105 (41)
14 (7.8)

21 (11.7)

20.5 (11.4)

20 (11.1)

19 (10.6)

16 (8.9)

Table

4--Required

Liquid

REQUIRED LIQUID LINE TEMPERATURE
Required Subcooling (°F)
10
15
20

Pressure (kPa)

134

141

156

163

17O
177

86
89

184
191

Line Temperature

FOR A SPECIFIC SUBCOOLING

(R-22)
Required Subcooling (°F)
6
8

Pressure (kPa)

924

972

1075

1124

81
84

76
79

71
74

1172
1220

33
34

30
31

27
29

24
26

1268

1317

198
2O5

96
98

91
93

86
88

81
83

1365
1413

38
4O

36
37

33
34

3O
31

213

101

1468

221

104

1524

229

106

101

1579

237

108

103

1634

245
253

111
113

106
108

101
103

96
98

1689
1744

47
48

44
45

41
42

38
4O

262

116

111

106

101

1806

271

118

113

108

103

1868

28O

121

116

111

106

1930

289
298

123
125

118
120

113
115

108
110

1992
2054

53
55

51
52

48
49

45
46

3O7

128

123

118

113

2116

317

130

125

120

115

2185

327

132

127

122

117

2254

337

135

130

125

120

2323

347
357

137
139

132
134

127
129

122
124

2392
2461

61
62

58
60

56
57

53
54

367

142

137

132

127

2530

28O

121

116

111

106

1930

289
298

123
125

118
120

113
115

108
110

1992
2054

53
55

51
52

48
49

45
46

3O7

128

123

118

113

2116

317

130

125

120

115

2185

327

132

127

122

117

2254

337

135

130

125

120

2323

347
357

137
139

132
134

127
129

122
124

2392
2461

61
62

58
60

56
57

53
54

367

142

137

132

127

2530

Step 3--Refrigerant
Refrigerant
nameplate

Charge

2. Measure

Charge --Amount
of refrigerant charge is listed on unit
and in Table 1. Refer to Payne Refrigerant
Service

Techniques
Manual, Refrigerants
section. Unit panels must be in
place when unit is operating during charging procedure. Unit must
operate a minimum

of 15 minutes

before

checking

charge.

NO CHARGE
Refer

to Payne

evacuating
specified
LOW

Subcooling

SUBCOOLING °F (°C)
Outdoor Ambient Temperature

techniques.
amount

CHARGE

024-042

Refrigerant
After

of refrigerant

Service

Techniques.

evacuating

system,

Use

standard

weigh

in the

(refer to Table 1).

units:
line pressure

3. Insulate
ambient

suction

sensing

line

temperature

attaching

device to it.

the temperature
sensing device so that the outdoor
doesn't affect the reading.

4. Locate the measured suction line pressure in the top row of
Table 7 and the measured outdoor ambient temperature
in
the left colunm of the table. Based on the two values,
determine

the required

suction

line temperature.

5. If the measured suction line temperature
is greater than the
tabulated temperature,
add charge in the system.
048 and 060 units:

COOLING

1. Measure suction
service port.

the

temperature

by attaching

a gauge

to the

1. Measure discharge
service port.
2. Measure
temperature

the

line pressure

liquid

sensing

line

by attaching

temperature

device to it.

a gauge

to the

attaching

3.Insulate
thetemperature
sensing
device
sothattheoutdoor
ambient
doesn't
affect
thereading.
4.Refer
totherequired
subcooling
inTables
3and
4tofindthe
required
subcooling
based
onthenrodel
size
andtheoutdoor
ambient
temperature.
5.Interpolate
if theoutdoor
temperature
liesinbetween
the
table
values.
Extrapolate
ifthetemperature
liesbeyond
the
table
range.
6.Findthepressure
valuecorresponding
tothemeasured
pressure
onthecompressor
discharge
line.
7.Read
across
fromthepressure
reading
toobtain
theliquid
linetemperature
forarequired
subcooling.
8.Addcharge
if themeasured
temperature
ishigher
thanthe
liquidlinetemperature
value
inthetable.
9.Addcharge
using
theservice
connection
onthesuction
line
ofthecompressor.
HEATING
MODE
CHARGE
Donotattempt
toadjust
charge
bycooling
methods
whileinheat
pump
heating
mode.
Recover
refrigerant
and
weigh
inaccording
to
unitdata
plate
refrigerant
data.
Step4--Indoor
Airflowand Airflow Adjustments
NOTE:

For cooling

operation,

the recommended

450 cfm for each 12,000 Btuh of rated cooling
Table 6 shows dry coil air delivery
Tables 8-10

show pressure

airflow

is 350 to

for horizontal

discharge

units.

SWITCH

Located on the outdoor liquid line is a low-pressure
switch which
functions
as a loss-of-charge
switch. This switch contains
a
Schrader core depressor. This switch opens at 7 psig and closes at 22
psig. No adjustment is necessary.
COMPRESSOR

OVERLOAD

This overload

interrupts

power to the compressor

when

current

internal

temperature

excessive,

automatically
level.

become

resets when the internal

temperature

either the
and

drops to a safe

This overload may require up to 60 minutes (or longer) to reset:
therefore,
if the internal overload
is suspected
of being open,
disconnect
the electrical power to the unit and check the circuit
through the overload with an ohmmeter or continuity tester.
COMPRESSOR

ROTATION

On 3-Phase units it is important to be certain compressor
is rotating
in the proper direction. To determine whether or not compressor
is
rotating

in the proper direction:

1. Connect
fittings.

service

2. Energize

gauges

the compressor.

3. The suction pressure
should

capacity.

drops.

NOTE: Be sure that all supplyfrom obstructions,
and adjusted

LOSS OF CHARGE

to suction

and discharge

pressure

should drop and the discharge

pressure

rise, as is normal

on any start-up.

If the suction pressure does not drop and the discharge
not rise to normal levels:

pressure

does

1. Turn off power to the unit and tag disconnect.

and return-air
properly.

grilles are open. free

2. Reverse

any two of the unit power leads.

3. Turn on power to the unit.
The suction and discharge

ELECTRICAL

SHOCK

HAZARD

Failure to follow this warning
or death.
Disconnect
before

electrical

changing

blower

FOR 208/230V

injury

start-up

NOTE:

When the compressor

unit makes

levels should

an elevated

is rotating

by changing

are

BLOWER

the lead connections

factory

wired

for rated

of the

airflow

are as follows:

RATED AIRFLOW

HIGH AIRFLOW

Tap 1

Tap 3

030

Tap 2

Tap 4

036

Tap 1

Tap 3

042

Tap 2

Tap 4

RATED AIRFLOW

FAN OPERATION
The FAN switch

on the thermostat

controls

When

switch

in the

the

(indoor-fan
thermostat.

FAN

is placed

fan operation.
the IFR

relay) is energized
through
the G terminal
on the
The normally-open
contacts close, which then provide

power to the indoor (evaporator) fan motor (IFM). The IFM will run
continuously
when the FAN switch is set to ON.

HIGH AIRFLOW

High
Stage

Low
Stage

High
Stage

048
060

Tap 1
Tap 1

Tap 3
Tap 3

Tap 2
Tap 2

Tap 4
Tap 4

Controls
have the following
RELIEF

internal-protection

controls.

VALVE

This valve opens when the pressure differential
high side becomes excessive.

between

the thermostat

the low and

deenergizes

the IFR (provided there is not a call for cooling). The contacts open
and the IFM is deenergized. The IFM will be energized only when
there is a call for cooling, in heat pump heating mode or if the unit

NOTE: Some units are equipped with a time-delay
units, the indoor fan remains on for 30 seconds

Low
Stage

HIGH-PRESSURE

indoor

ON position,

is equipped with accessory electric heat, the indoor-fan
also run while the accessory electric heat is energized.

SIZE

All compressors

the

cooling.

MOTORS

connections

024

Step 5--Unit

direction,

of Operation

When the FAN switch is set to AUTO,

SIZE

in the wrong

level of noise and does not provide

speed.

motors

The motor lead speed

now move to their

levels.

Step 6--Sequence

power to the unit and install lockout tag

Airflow can be changed
blower motor.
All PH3Z
operation.

could result in personal

pressure

normal

motor will

relay. On these
after G or Y is

deenergized.
COOLING

OPERATION

(SIZES

024-042)

With a call for cooling (Y/Y2), the indoor fan energizes immediately
whereas the contactor energizes after a 5 minute time delay (in case
of initial start-up)
starting the compressor
and the outdoor fan
motor. When the cooling demand
is met. Y/Y2 de-energizes,
shutting the compressor,
indoor fan and the outdoor fan.

F E_D
SUPPLY
DNII ONIY
MAXIMUM
WIRE
SIZE 2 A_G

SCHEMATIC
.....

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2081230-3-60

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CONTROLBOX AR_

CC_
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DR
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POI[_IAL O_#Ly
NOT _0 REPR[S(NIW!R[_G Z_
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F_:..........

CAPACITOR
CR_ C_SE _AT_
COmPReSSOR_010_
CO_PR£SSORTIM[ DELAY
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COMPRESSOR DELAY

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CLOSES
TSA_
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S_PPLIED

24V SPLICE

OP_S

_36=1
5 _[iOCATTO_IOF SP[[_ 7_PS MAY a[ REaU[R_9

_F_R_IS_ CORRECtsp_EpTAP S_INS
_Do NOT_[SCONNECTP_UGUN_[RLOaD-

A06404

Fig. 12 - Typical

Single-Phase

Unit Electrical

Diagram

(Sizes 024-042)

L_/

SCHEMATIC
208/230+60

SUPP Y
POW R
UNIT ONLY
MAN MUM W[R
SIZE
2 AWG

OM
Y_L

COMP

SOLENOID

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SEF NOTE #6
BUN
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BIK

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ARRANGEM[NI

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s_cr;o_
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RED
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D P SWIICH

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UNIT

COMPONENT

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ARRANGEF4ENT

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FIELD CONTROL_]RING
FH:LD PO_F:RWIRING
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OR OPT!ONAL

G_D
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S_PPLIED

GROUND
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_OTOR
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IfA_ OF THEORIGINA__RZS FUB_ED AR_ R[_AC[_

...........
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CTD (TtT2]

COMPRESSOR DELAY

L _SEc_, ,.......
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TSA_

OP_S

_36=1

_4V SPIICF
_F_IS_

CORRECtSP_EPTAP S_IN_

A06325

Fig. 14 - Typical

Three-Phase

[]nit Electrical

Diagram

(Sizes 030-042)

I))

SCHEMATIC
208/230-3-60

UN!T ONLY
MAN]MUM
WIRE
S[Z[ 2 AW6

YEL

EONIPGND

FOR WIRING WITH
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(

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r
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6 ...........
GRN...............

R ........................
RED

Y! .......................
TEL ....................

ORN

W2 .......................
WNT ..........

Y2 .................
PNN ...........

UNIT

COMPONENT

V]O .......

ARRANGEMENT

p':
C_

EE:::}

(]_]2}

COmpRESSOR
D{LAY

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A06326

Fig. 15 - Typical

Three-Phase

Unit Electrical

Diagram

(Sizes 048-060)

CONTROL

P I JC

BOARD

__
STEP

W_T
v;o

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

ill
i

RELAY1

•

BRN

•

RELAY
1
1

_41

8RN

AUTO

LIMIT

AUTO

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• _

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3

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RELAY

BRN_]

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BLK

AUTO

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A05209

Fig. 16 - Single-Phase

Accessory

Electric

Heater

Wiring

UNIT
POWER
WIRING

PINK
?

VIOLET

CB_
TO #N f CO_fROL
WI_XNG

24VAC

MR3

]

L1
L2

BLACK

BLAC]_

_It

YELLOW

Jt
Et_

_,vvvvvv'_
EL3

AUTO-LINIT

AUTO.LINIT

BLUE

BLAC N

A06327

Fig. 17 - Three-Phase

Accessory

Electric

Heater

Wiring

Table
NOMINAL
VOLTAGE
(V-Ph-Hz)

UNIT
SIZE

VOLTAGE
RANGE
Min

Max

5--Electrical

COMPRESSOR
RLA

LRA

Data-PH3Z

OFM
FLA

IFM

ELECTRIC

FLA

4.1

3.6/5
7.5/lO

18.1/20.8
36.1/41.7

5.4/7.2

26/30

--/--

208/230-1

- 60

024

187

253

lO.9

54.0

0.9

- 60

030

187

253

13.5

72.5

0.9

4.1

3- 60

030

187

253

9.0

63.0

0.9

4.1

- 60

036

187

253

17.5

88.0

1.5

6.0

3- 60

036

187

253

11.7

77.0

1.5

6.0

- 60

042

187

253

19.4

lO4.O

1.5

6.0

208/230-

3- 60

042

187

253

88.0

1.5

6.0

- 60

048

187

253

24.7

116.o

1.5

7.7

3- 60

048

187

253

14.7

91.o

1.5

7.7

- 60

060

187

253

28.0

118.o

3.0

7.7

54.3/59.3
16.3/16.3

60/60
20/20

See Legend

3- 60

on following

060

187

253

21.5

123.o

3.0

page.

7.7

--/--

3.6/5

10.4/12

29.3/31.3

35/35

7.5/1o
7.5/lO

20.8/24.1
20.8/24.1

42.3/46.3
42.3/46.3

45/45
45/45

29.4/29.4
52.0/55.4

35/35
60/60

--/--

3.6/5

18.1/20.8

7.5/1o

36.1/41.7

74.5/61.5

80/60

11.3/15
5.4/7.2

54.2/62.5
26/30

97.1/107.5
61.9/66.9

100/100
70/70

3.6/5

10.4/12

22.1/22.1
35.1/37.1

30/30
40/45

7.5/lO
7.5/1o

20.8/24.1
20.8/24.1

48.2/52.2
48.2/52.2

50/50
50/50

11.3/15
15/2o

31.3/36.1
41.7/48.1

61.2/67.2
74.2/82.2

60/60
70/90

--/--

31.7/31.7

40/40

3.6/5
7.5/lO

18.1/20.8
36.1/41.7

54.3/57.8
76.9/83.8

60/70
80/90

11.3/15
15/2o

54.2/62.5
72.2/83.3

99.4/109.9
122.0/135.9

100/110
110/150

5.4/7.2

26/30

64.2/69.2
22.9/22.9

70/80
30/30

--/--

3.6/5
7.5/1o

10.4/12
20.8/24.1

35.9/37.9
48.9/53.0

45/45
50/50

7.5/1o

20.8/24.1

48.9/53.0

50/50

11.3/15
15/2o

31.3/36.1
41.7/48.1

62.0/68.0
75.0/83.0

60/70
70/80

3.6/5

18.1/20.8

40.0/40.0
62.6/66.1

50/50
80/80

7.5/1o
11.3/15

36.1/41.7
54.2/62.5

85.1/92.1
107.7/118.1

100/100
110/125

15/2o
5.4/7.2

72.2/83.3
26/30

130.3/144.2
72.5/77.5

125/125
90/90

--/--

27.6/27.6

35/35

3.6/5
7.5/1o

10.4/12
20.8/24.1

40.6/42.6
53.7/57.7

50/50
60/60

7.5/1o
11.3/15

20.8/24.1
31.3/36.1

53.7/57.7
66.7/72.7

60/60
70/70

15/2o

41.7/48.1

79.7/87.7
45.7/45.7

80/90
60/60

--/--

3.6/5
7.5/1o

18.1/20.8
36.1/41.7

68.2/71.7
90.8/97.8

90/90
100/110

11.3/15

54.2/62.5

113.4/123.8

125/125
45/45
60/70

3.6/5

10.4/12

37.6/37.6
50.6/52.6

11.3/15
11.3/15

31.3/36.1
31.3/36.1

76.7/82.7
76.7/82.7

90/90
90/90

15/2o

41.7/48.1

89.7/97.7

100/100

--/--

208/230-

30/30
50/50

26/30

--/--

208/230-1

50/50

5.4/7.2

--/--

208/230-

51.1/56.1

70/70
90/100

--/--

208/230-1

45/50
60/70

67.0/73.9
69.5/100.0

--/--

12.3

25/25

41.2/44.7
63.8/70.7

36.1/41.7
54.2/62.5

--/--

208/230-1

18.6/16.6

7.5/lO
11.3/15

--/--

208/230-

MOCP

18.1/20.8

--/--

208/230-1

-/-

MCA

3.6/5

--/--

208/230-

FLA

POWER SUPPLY

21.6/21.8
44.4/47.9

--/--

208/230-1

HEAT

Nominal
kW

--/--

EXAMPLE:
FLA
LRA
MOA
MOCP
RLA

Full Load Amps
Locked LEGEND
Rotor An/ps
Minimum
Circuit
An/ps
Maxin/un/
Overcurrent
Rated
Load An/ps

Supply voltage is 230-3-60.
AB = 228 v
AO = 227 v

Average Voltage = 228 + 231 + 227
3
BG = 231 v
= 68___£6
3
229

Protection

NOTES:

Determine n/aximun/
(AB) 229 - 228
(BO) 231 - 229
(AO) 229 - 227
Maxin/un/ deviation

1. In compliance
with NEO (National
Electrical
Code)
requirements
for multht/otor
and combination
load
equipment
(refer
to NEC
Articles
430 and 440), the overcurrent
protective
device
for the
unit
shall
be Power
Supply
fuse. The CGA (Canadian
Gas
Association)
units may be fuse or circuit
breakel:
2. Minimum
wire size is based
on 60°0
copper
wire.
If other than
60°0 wire
is used,
or if length
exceeds
wire
length
in table,
determine
size from NEC.
3. Unbalanced
3-Phase
Supply
Voltage
Never
oper>_te a motor wher_
a phase irnbaF_nce
in supply
voltage is greater
than 2%. Use the following
formula
to determine
the percentage
of voltage
imbalance.
% Voltage
100

Determine

max

voltage

deviation
average

from average
voltage

percent of voltage imbalance.
2
100 x -229
0.6%

This amount of phase imbalance
maxin/un/ allowable 2%.

Heater capacity
(kW) based
If power distribution
voltage
voltage,
heater
kW will vary

on heater
voltage
to unit varies
from
accordingly.

is satisfactory

as it is below the

voltage
voltage
more
than
IMPORTANT:
in/mediately.

voltage.

% Voltage Imbalance

imbalance
x

deviation from average
1v
2 v
2 v
is 2 v.

2%,
If

contact
your
the
supply

local

phase
electdo

imbalance
utility

company

of 208v & 240v.
rated heater
008014

Fig. 18 - Electrical

Table

230 VOLT
UNIT
SIZE

HORIZONTAL
SPEED
TAP
1

024
2

2
030
3

1
036
2

3
042
4

2
048
3

2
060
3

6--Dlw

Coil

(Deduct

10 percent

Air

Data Table

Delivery"
for

Legend

Horizontal

208

Volt

Discharge

Operation)

DISCHARGE
AIR
DELIVERY

0,1

0.2

0.3

Watts

1O0

CFM

848

793

EXTERNAL
0,4

STATIC
0,5

PRESSURE
0.6

118

130

142

757

698

632

(IN.WG)
0,7

0,8

0.9

1,0

Watts

222

233

244

257

260

CFM

970

918

861

795

729

Watts

155

146

157

170

CFM

1108

995

951

884

Watts

261

275

286

291

315

CFM

1117

1053

1014

980

877

Watts

180

166

179

191

204

216

CFM

1344

1215

1172

1051

1136

1095

Watts

261

276

290

301

316

329

342

CFM

1343

1304

1272

1234

1190

1148

1100

Watts

269

283

305

321

336

349

360

CFM

1440

1404

1369

1333

1301

1273

1239

Watts

418

432

450

465

480

490

503

518

CFM

1572

1543

1504

1475

1441

1418

1380

1332

Watts

204

209

216

229

236

249

CFM

1129

1087

1027

994

932

881

Watts

233

245

254

266

276

289

CFM

1164

1122

1066

1025

954

906

Watts

386

398

409

418

425

435

438

441

451

CFM

1680

1652

1625

1583

1555

1515

1477

1444

1403

Watts

440

448

457

462

469

477

480

485

486

CFM

1745

1717

1684

1651

1612

1573

1537

1508

1470

Watts

224

235

251

266

277

291

298

CFM

1334

1288

1259

1224

1181

1157

1117

Watts

286

301

311

325

333

344

370

CFM

1333

1296

1261

1232

1199

1170

1062

Watts

608

626

643

660

668

685

697

CFM

1931

1900

1878

1844

1817

1789

1755

Watts

737

755

770

787

799

817

826

812

782

CFM

2093

2061

2028

2001

1971

1934

1899

1850

1757

*Air delivery values are based on operating voltage of 230v, wet coit, without filter or electric heater. Deduct filter and electric heater pressure drops to obtain
static pressure available for ducting.
NOTES:
1. Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator
flows below this point.
2. Dashes indicate portions of table that are beyond the blower motor capacity or are not recommended.

coil frosting may occur at air-

Table

7--Cooling

Charging

Chart

SUCTION LINE TEMPERATURE (°F)
Suction Line Pressure (PSIG)

ODTemp. 52

61
53

105

115

544

566

589

612

636

(°F)
45
55

65
75
85
95

125
SUCTION LINE TEMPERATURE
Suction
OD Temp.
(°C)

361

370

13
18

387

405

423

16
12

442

462

482

502

523

19
14

21
17

12
10

14
12

17
14

19
16

35
41
46
52
(SIZES

048 AND 060)

These units utilize a 2 stage indoor thermostat.

switching the compressor
and the indoor fan into low stage heating.
When the low stage heating demand is met, Y1 de-energizes
shutting down the compressor,
indoor fan and the outdoor fan.

With a first stage call

for cooling (Y1), the indoor fan (low stage) energizes immediately
whereas the contactor energizes after a 5 minute time delay (in case

CONTINUOUS

FAN

of an initial start-up) starting the compressor
(low stage) and the
outdoor fan motor. If the low stage operation
cannot satisfy the

With the continuous Indoor
G is continuously
energized.

cooling demand,
the compressor

airflow setting is provided.

the second stage cooling (Y2) energizes switching
into high stage cooling through energizing
an

OPERATION

(SIZES

on the thermostat.
units, the selected

In case of 048 and 060 units, the system
fan operation.

DEFROST

Y2 de-energizes
switching the compressor and the indoor
low stage cooling. When the low stage cooling demand is
de-energizes
shutting the compressor,
indoor fan and the
fan.

HEATING

fan option selected
In case of 024-042

runs low stage (Y1) airflow for continuous

internal solenoid valve inside the scroll compressor
and switching
the indoor fan into high stage. When second stage cooling is
satisfied,
fan into
met, Y1
outdoor

(°C)

OPERATION

Line Pressure (kPa)

COOLING

Defrost board (DB) is a time and temperature
control, which
includes a field-selectable
time period between checks for defrost
(30, 60, 90 and 120 minutes). The time period is factory-set
at 60
minutes and should only be adjusted by a trained service person.
Electronic

024-042)

energized

With a call for heating (Y1), the indoor fan (low stage) energizes
immediately
whereas the contactor energizes after a 5 minute time

Defrost

timer

and defrost

cycle

thermostat

mode is identical

start only

(DFT)

to Cooling

when

contactor

is closed.

mode. The outdoor

fan motor

delay (in case of initial start-up) starting the compressor
and the
outdoor fan motor. If Y/Y2 cannot satisfy the heating demand, the

stops because of "OF1" and "OF2" contacts opening on the defrost
board, a bank of optional electric heat turns on to warm air supplying

auxiliary or backup heat (W2) energizes. In case of staged heating,
W3 is energized
if the demand is not met. The highest airflow
selected is run while the electric heat is in operation. When heating

the conditioned

demand
shutting

is met. W3. W2 and Y/Y2 sequentially
the compressor,
indoor fan and the outdoor

HEATING

OPERATION

(SIZES

ELECTRIC

and in turn energizes the electric heaters. The IFR is energized
which starts the indoor-fan
motor. If the heaters are staged, W2 is
energized when the second stage of heating is required. When the

048 AND 060)

need for heating

minute time delay (in case of initial start-up) starting the compressor
(low stage) and the outdoor fan motor. If the low stage operation

W2 and Y2 sequentially

the heater and IFM are de-energized.

To ensure continuing
high performance,
and to minimize
the
possibility
of premature equipment
failure, periodic maintenance
must be performed on this equipment. This cooling unit should be
inspected at least once each year by a qualified service person. To
troubleshoot
unit, refer to Troubleshooting
Chart in back of book.

backup heat is controlled by a third stage (W2). If the demand is not
met, W3 is energized
in case of staged heating. When heating
W3,

is satisfied,

MAINTENANCE

cannot satisfy the heating demand, the second stage heating (Y2)
energizes switching the compressor into high stage heating through
energizing an internal solenoid valve inside the scroll compressor
and switching
the indoor fan into high stage. The auxiliary or

is satisfied,

HEATING

If accessory electric heaters are installed, on a call for "Emergency
Heat" the thermostat energizes W which energizes the heater relay

de-energize
fan.

With a first stage call for heating (Y1), the indoor fan (low stage)
energizes immediately
whereas the contactor energizes
after a 5

demand

space.

RESISTANCE

NOTE TO EQUIPMENT
OWNER:
about the availability of a maintenance

de-energize

Consult
contract.

your

local

dealer

PERSONAL
INJURY
ANDUNITDAMAGE

The minimum
follows:

maintenance

1. Inspect air filter(s)
necessary.

2. Remove

screws on unit top cover flange.

(Save all screws.)

plenum)

requirements

for this equipment

are as

accumulated
annually.

each

Clean

when

or replace

indoor

coil, drain pan, and condensate

cooling

season

for cleanliness.

are completed.
Blower

electrical

proper

drain each

dirt and grease

ELECTRICAL

connections

operation

each

for tightness

cooling

SHOCK

and controls

ELECTRICAL

SHOCK

Failure to follow
injury or death:

season.

Service

when

in contact

with

1. Remove

refrigerant

2. Use extreme

these

HAZARD

the blower

could result in personal

HAZARD
warnings

could

result

in personal

caution

when removing
combustible

Never operate

panels

any

and parts.

2. Remove

the filter becomes

the unit without

removing

When performing

a suitable

installed.

air filter

See Table

the blower

wheel from the housing:

d. Remove the filler panel at the discharge end of the blower
housing by removing the two screws that fasten it to the
housing.
e. Remove

(Outdoor-Coil
maintenance

that require

3. Remove

Side)

or service procedures
top removal,

and condensate

the wheel

the caked

form the housing.

on dirt from

the wheel

4. Remove

that

including

coil

drain pan inspection

and

lint and dirt accumulations

housing
with
attachment.

all of the routine

5. Remove

grease

6. Reassemble

a vacuunr

cleaner,

c. Reinsert

tag

power

personnel

that require

Refer to the fnllowing

should

the

unit

injury

the motor

the mounting
locations.

before

d. Tighten

perform

maintenance

and

unit top removal.

top removal

and
brush

and oil with a mild solvent.

procedures:
18

assembly

legs

the mounting

with the housing.

service

procedures

could result in personal

electrical

a soft

with the hub set screw

b. Install the filler panel.

HAZARD

Failure to fnllow this warning
or death.

from the wheel
using

as follows:

a. Slip the wheel back in the housing
parented in the correct direction.
SHOCK

and the motor

using a brush.

cleaning.

Disconnect
and
removing top.

by hand

bracket.

c. Slide out the motor assembly (motor. belly band and the
3 mounting legs) from the hub of the wheel.

1 for

with dust and lint.

of the unit top, be sure to perform

ELECTRICAL

is supported

the mounting

b. Loosen the three mounting legs of the motor by removing
the bolts that fasten themounting
legs to the housing.

replace the filter with the same

clogged

Top Removal

procedures

completely

a. Loosen the set screw which secures the wheel to the motor

Inspect
air filter(s)
at least once each month
and replace
(throwaway-type)
or clean (cleanable-type)
at least twice during
each cooling
season and twice during the heating season,
or

and cleaning,

the mounting

d. Slide the blower housing from the rails of the duct panel
and place it outside the unit.

either on or in contact

dimensional
size and type as originally
recommended
filter sizes.

removal

the side access panel and unscrew

shaft.

in the return- air duct system. Always

Step 2--Unit

housing:

c. Make sure that the blower housing

Filter

IMPORTANT:

service

injury

bracket that fastens the blower housing to the internal
partition panel fo the control box assembly.

before

3. Never place anything
with the unit.

Only qualified

clean

and motor

a. Remove the screws on the external side of the duct panel
that fasten the housing to the duct panel assembly.

1. Turn off electrical power to the unit before performing
maintenance
or service on this unit.

inspection

efficiency,
wheel

Disconnect
and tag electrical power to the unit before cleaning
and lubricating the blower motor and wheel.

for

b. Remove

maintenance

the blower

To clean the blower wheel:

5. Ensure electric wires are not
tubing or sharp metal edges.

require

and continuing

from

Failure to follow this warning
or death.

each cooling

necessary.

NOTE:

and Motor

For longer life, operating economy,

(;lean when necessary.

4. Check

whenever

duct (or

(;lean when necessary.

3. Inspect blower motor and wheel for cleanliness

Step 1--Air

by unit side that is opposite

side.

procedures
Step 3--Indoor

month.

Set top on edge and make sure

4. Carefully replace and secure unit top to unit, using screws
removed in 1 and 2 above, when maintenance
and/or service

on this equipment,
other than those
in the Owner's Manual.

2. Inspect

season.

(Save all screws.)

that top is supported

injury

The ability
to properly
perform
maintenance
on this
equipment requires certain expertise, mechanical
skills, tools
and equipment.
If you do not possess these, do not attempt to
perform any maintenance
procedures recommended

screws on unit top cover surface.

3. Lift top from unit carefully.

HAZARD

Failure to follow this warning could result in personal
or death and possible unit component
damage.

i. Remove

with

in the wheel

the housing

hub and align
mounting

hold

bolts to fasten the motor assembly

Table
UNIT
SIZE

6O0

700

800

900

1000

024

.027

.034

040

.047

.053

.036

8--Wet

Coil Pressure

Drop

STANDARD CFM (S.C.F.M.)

030

1100

1200

1300

1400

1500

1600

1700

1800

1900

.042

.050

.055

.063

.072

.081

036

.050

.055

.063

.072

.081

.090

.097

042

.042

.049

.052

.059

.065

.071

.078

.085

.091

048

.072

.081

.090

.097

.108

.120

.129

.139

060

.071

.078

.085

.091

.098

Table

UNIT

SIZE

9--Filter

Pressure

Drop

FILTER
SIZE

024-036

(in.)
24x24

042-060

30x30

2000

.114

(in. wg)

CFM
500
0.06

600
0.07

700
0.08

800
0.08

900
0.09

1000 1100 1200 1300 1400
0.09 0.09 0.10 0.11 0.12
0.08

Table

10---Accessory

Electric

Heat

1500 1600 1700 1800 1900 2000 2100 2200 2300
0.14 0.15

0.09

0.10

0.11

Pressure

Drop

(in.

0.12

0.13

0.14

0.15

0.16

0.17

0.18

wg)

CFM
HEATER

5-20

600

800

1000

1200

1400

1600

1800

2000

2200

0.06

0.08

0.10

0.13

0.15

0.18

0.20

0.23

0.25

e. (;enter the wheel in the housing by sliding it, align the flat
end of the shaft with the set screw and tighten the set
screw.

i. Shut off unit power
2. Remove

supply

outdoor-fan

and fan) by removing
unit top cover.

f. Slide back the blower housing into the mounting rails in
the duct panel and install the mounting bracket back in its

and install lockout

assembly
screws

3. Loosen

fan hub setscrews.

4. Adjust

fan height

(grille, motor,
and flipping

tag.
motor cover,

assembly

onto

position.
as shown

g. Install the screws on the external side of the duct panel to
fasten duct panel with the housing.

5. Tighten

setscrews.

h. Replace

6. Replace

outdoor-fan

Step 4--Outdoor
Pan
Inspect

the side access panel.
Coil, Indoor

the condenser

Coil, and Condensate

coil. evaporator

coil

in Fig. 19.

assembly.

Drain

and condensate

drain

pan at least once each year.
The coils are easily cleaned when dry; therefore, inspect

and clean
12mm

the coils either before or after each cooling season. Remove all
obstructions,
including weeds and shrubs, that interfere with the
airflow through the condenser
Straighten

A06411

coil.

Fig. 19 - Outdoor

Fan Adjustment

bent fins with a fin comb. If coated with dirt or lint, clean
Step 6--Electrical

the coils with a vacuum cleaner, using the soft brush attachment. Be
careful not to bend the fins. If coated with oil or grease, clean the
coils with a mild detergent and water solution. Rinse coils with clear

Inspect

Remove

insulation, wiring, or air filter(s). For best results, spray condenser
coil fins from inside to outside the unit. On units with an outer and

controls

power

and wiring

annually.

to the unit.

access panel to locate all the electrical

controls

and wiring.

Check all electrical connections
for tightness. Tighten all screw
connections.
If any smoky or burned connections
are noticed,
disassemble the connection,
clean all the parts, re-strip the wire end

the coils. Be sure to

and reassemble

Inspect the drain pan and condensate drain line when inspecting
coils. Clean the drain pan and condensate drain by removing

and Wiring

and check the electrical

sure to turn off the electrical

water, using a garden hose. Be careful not to splash water on motors,

inner condenser coil, be sure to clean between
flush all dirt and debris from the unit base.

Controls

the
all

the connection

properly

and securely.

Check to ensure no wires are touching refrigerant tubing or sharp
sheet metal edges. Move and secure wires to isolate from tubing and

foreign matter from the pan. Flush the pan and drain trough with
clear water. Do not splash water on the insulation, motor, wiring, or

sheet metal edges.

air filter(s). If the drain trough is restricted,
snake" or similar probe device.

After inspecting
the electrical controls and wiring, replace all the
panels. Start the unit, and observe at least one complete cooling

Step 5--Outdoor

clear it with a "plumbers

cycle to ensure proper operation.
operating cycle, or if a suspected

Fan

each
electrical
instrumentation.
checks.
UNIT

OPERATION

Failure to follow
components.

HAZARD

this caution

may result in damage

to unit

component
with
Refer to the unit wiring

Step 7--Refrigerant

Circuit

Inspect

tubing

all refrigerant

accumulation
annually.
refrigerant leak.

Keep the condenser
fan free from all obstructions
to ensure
proper cooling operation. Never place articles on top of unit.

If discrepancies
are observed in
malfunction
has occurred, check

connections

Detecting

oil

the
proper
electrical
label when making these

and the unit base for oil
generally

indicates

If oil is detected or if low performance
is suspected, leak test all
refrigerant tubing using an electronic leak detector, or liquid-soap
19

solution.
If a refrigerant
leakis detected,
referto Check
for
Refrigerant
Leaks
section.
Ifnorefrigerant
leaks
arefound
andlowperformance
issuspected,
refer
toChecking
andAdjusting
Refrigerant
Charge
section.
Step8--Indoor
Airflow
Theheating
and/or
cooling
airflow
does
notrequire
checking
unless
improper
performance
issuspected.
If aproblem
exists,
besure
that
all supply-andreturn-air
grillesareopenandfreefrom
obstructions,
andthattheairfilterisclean.
Step 9--Metering

Devices

Refrigerant cooling metering device is an AccuRater (024-042)
or
TXV (048 and 060) located upstream of the indoor coil distributor
assembly.
Refrigerant
heating
mode metering
device
is an
AccuRater

located upstrem

of the outdoor

coil distributor

Step lO--Liquid

Line Strainers

The liquid line strainers (to protect metering devices) are made of
wire mesh and are located in the liquid lines on the inlet side of the
metering devices.
Step ll--High

Flow Valves

High flow valves are located on the compressor
tubes. Large black plastic caps distinguish

hot gas and suction
these valves with

O - rings located inside the caps. These valves can not be accessed for
service in the field. Ensure the plastic caps are in place and tight or
the possibility of refrigerant leakage could occur.
TROUBLESHOOTING
Refer to the Troubleshooting
information.

(;hart (Table

11) for troubleshooting

assembly.

START-UP
Use the Start-Up

Checklist

CHECKLIST

at the back of this manual.

OUTDOOR COIL

Check
Valves
Open

Ck)sed

Open

Ck)sed

INDOOR COIL

LEGEND
LCS

Loss of Charge

Switch

]

Acutrol

Check Valve (Arrow

Metering

Device
indicates

direction

of fk)w)
HEATING

1. Hot gas from compressor flows through the 4-way valve and is
directed to the cooling liquid line check valve. It is then condensed
and directed through subcooling circuits and out to the strainer
and the check valve in the heating liquid line.
2. The refrigerant then feeds the outdoor coil through the Acutrol
metering device on each circuit.

CYCLE
3. Each circuit evaporates the refrigerant and the circuits are combined in the outdoor header with some of the circuits flowing through
the check valve.
4. The refrigerant then flows through the 4-way valve, accumulator,
and back to the compressor.
C95045

Fig. 20 - Typical

Heat

Pump

Operation,

Heating

Mode

OUTDOOR COIL

Check Valves
A

Closed

Open

Ck)sed

Open
LEGEND

LCS

Loss of Charge

]

Acutrol

Switch

]

Check Valve (Arrow

Metering

Device
indicates

direction

of flow)

COOLING
1. Hot gas from compressor flows through the 4-way valve and is
directed to the heating liquid line check valve. It is then condensed and subcooled th rough converging circuits. Refrigerant leaves
the outdoor coil by way of the strainer and the check valve in the
cooling liquid line.
2. The refrigerant then feeds the indoor coil through the Acutrol
metering device on each circuit.

CYCLE
3. Each circuit evaporates the refrigerant and the circuits are combined in the indoor coil header with some of the circuits flowing
through the check valve.
4. The refrigerant then flows through the 4-way valve, accumulator,
and back to the compressor.

C95044

Fig. 21 - Typical

Heat Pump

Operation,
21

Cooling

Mode

Table

ll--Troubleshooting

SYMPTOM

Compressor and outdoor
will not start

Compressor

will not

start

fan

but

Chart

CAUSE

condenser

fan

runs

REMEDY

Power failure

Call power company

Fuse blown or circuit breaker tripped

Replace fuse or reset circuit breaker

Defective contactor, transformer, control relay, or
high-pressure, lossof-charge or low-pressure
switch

Replace component

Insufficient line voltage

Determine

Incorrect or faulty wiring

Check wiring diagram and rewire correctly

User Interface setting too low/too high

Reset UI setting

Faulty wiring or circuit
Loose connections in compressor

Check wiring end repair or replace

Compressor

Determine

motor burned out, seized, or

scroll

compressor

060 unit) has a low pressure

Replace compressor

Defective run capacitor, overload, or PTC (positive
temperature coefficient) thermistor

Determine

One leg of 3-phase

Replace fuse or reset circuit breaker
Determine cause

power dead

is rotating in the wrong direction
or undercharge

head

Determine

cause end correct

Blocked outdoor coil

Determine

cause end correct

Defective run/start capacitor, overload or start relay

Determine

cause end replace

Faulty outdoor fan motor or capacitor

Replace

Restriction in refrigerant

Locate restriction and remove

system

Replace filter
for load

Decrease

set too low

Locate leak, repair, end recharge

Air in system

Recover refrigerant,
charge

Outdoor coil dirty or restricted

Clean coil or remove restriction

Dirty air filter

Replace filter

Dirty indoor or outdoor coil

Clean coil

Refrigerant overcharged

Recover excess refrigerant

Air in system

Recover refrigerant,
charge

Excessive

Suction

tOO low

suction

pressure

evacuate system, and re-

pressure

or air short-cycling

Low refrigerant charge
pressure

load or increase unit size

Reset UI setting

Low refrigerant charge

Indoor or outdoor air restricted
Head

evacuate system, and reshown on rating plate

Replace and determine cause

UI temperature

Excessive

power leads to the unit

Recover refrigerant,
charge to capacities

Insufficient line voltage

Unit undersized

operates continuously

3-phase

Defective compressor

Dirty air filter

Compressor

cause end correct

Correct the direction of rotation by reversing the
Scroll compressor

Refrigerant overcharge

Compressor cycles (other than normally satisfying) cooling/heating
calls

cause end replace

Determine

(size 030-

differential

cause

internal overload open

Low input voltage (20 percent low)
Three=phase

cause end correct

pressure

too

low

Determine

evacuate system, and re-

cause end correct

Restriction in liquid tube
High Heat load

Check for leaks, repair and recharge
Remove restriction
Check for source end eliminate

Reversing valve hung up or leaking internally

Replace valve

Refrigerant overcharged
Dirty air filter

Recover excess refrigerant
Replace filter

Low refrigerant charge
Metering device or low side restricted
Insufficient coil airflow

Check for leaks, repair and recharge
Remove source of restriction

Temperature too low in conditioned
Outdoor ambient below 55°F

Reset UI setting
Install low-ambient

Filter drier restricted

area

Check filtemreplace

Replace

if necessary
kit

START-UP
(REMOVE

CHECKLIST

AND STORE

IN JOB FILE)

I. PRELIMINARY
INFORMATION
Model No ............................................................................................................................................................
Serial No .............................................................................................................................................................
Date .....................................................................................................................................................................
Technician ..........................................................................................................................................................
Customer

Information(Name/Address)

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

II. PRE-START-UP
__

Verify that all packing

__
__
__

Verify that condensate connection
is installed per installation instructions.
Check all electrical connections
and terminals for tightness.
Check wire proximity to refrigerant tubes and sheet metal edges.

__
__

Check that indoor (indoor)
Verify that unit installation

air filter is clean and in place.
is level.

Check

for location

fan wheel

materials

propeller

have been removed

in housing

from unit.

and setscrew

tightness.

III. START-UP
Supply Voltage: L1-L2
Compressor
Amps: LI(C)
Indoor Fan Amps:

L2-L3
L2(S)
Outdoor Fan Amps:

TEMPERATURE-Cooling
Outdoor Air Temperature:
Return-Air
Temperature:
Cooling

Supply

Mode
DB
DB

Air:
Mode

psig

Suction Line Temp*
Refrigerant Discharge
Discharge

psig

Tempt

TEMPERATURE-Heating

Mode
DB

Outdoor Air Temperature:
Return-Air
Temperature:
Cooling

Supply

WB
WB

DB
Mode

Refrigerant Suction
Suction Line Temp*

psig

Refrigerant Discharge
Discharge Tempt
Verify Refrigerant

Air:

PRESSURES-Heating

WB
WB
WB

PRESSURES
- Cooling
Refrigerant Suction

L3-L1
L3(R)

psig
charge using charging

*Measured

at suction

tMeasured

at liquid line leaving

tables

inlet to compressor
outdoor

coil

!_ 2006 Payne Heating & Cooling
Manufacturer

reserves

Systems • 7310 W. Morris St. * Indianapolis,

the right to change_ at any time_ specifications

IN 46231

and design without

Printed

in the U.S.A.

notice and without

Edition

obligation.

Date:

08/06

Catalo_l No: IM-PH3Z-02
Replaces:

IM- PH3Z-0t

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PAYNE Package Units(both Units Combined) Manual L0610782

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