PAYNE Package Units(both Units Combined) Manual L0610780

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

manual

before

starting

the

TABLE OF CONTENTS

SAFETY CONSIDERATIONS

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

INTRODUCTION
..................................
RECEIVING AND INSTALLATION .................
Check Equipment

Page
2
2
2-6

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

Identify Unit ...................................
Inspect Shipment ................................

2
2

Provide Unit Support ..............................
Slab Mount ....................................

2
2

Ground Mount .................................
Provide Clearances ................................

2
2

Place Unit .......................................

Select and Install Ductwork ..........................
Configuring Units for Downflow (Vertical) Discharge
Connect Condensate Drain ..........................
Install Electrical Connections ........................
High-Voltage

Connections

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

2
...3
3
5

A05194

Fig. 1 - Unit PA3Z

Routing Power Leads Into Unit .....................
Connecting Ground Lead to Unit Ground .............

6
6

Routing Control Power Wires

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

Accessory Electric Heat Wiring .....................
PRE-START-UP
...................................
START-UP .....................................

6
7
7-17

Cooling

Operation

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

Heating

Operation

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

Continuous
Defrost
Electric

Air Filter

Start-Up Cooling and Make Adjustments ...............
Checking Cooling and Heating Control Operation ........

7
7

Refrigerant Charge ................................

No Charge .......................................
Low Charge Cooling ...............................

8
8

Electrical

8
9

Indoor

Indoor Airflow and Airflow Adjustments
Unit Controls ....................................
High-Pressure
Low-Pressure

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

Relief Valve ..........................
Switch ..............................

Compressor Overload

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

Compressor Rotation ...............................
Sequence of Operation .............................
Fan Operation

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

9
9
9
9
9
9

Resistance

Heating

and Motor

Outdoor

Fan

High

Controls

Coil, and Condensate

and Wiring

Circuit

Flow Valves

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

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

Line Strainers

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

TROUBLESHOOTING
CHECKLIST

18
Drain Pan

....

19
19

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

Devices

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

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

Airflow

START-UP

17
17-20

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

Coil, Indoor

Liquid

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

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

Outdoor

Metering

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

Blower

Refrigerant

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

[;nit Top Removal
Indoor

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

MAINTENANCE

Check for Refrigerant Leaks .........................

9, 17

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

19
20
20
20
20
20
20
22

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

(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

distributor

Certificate,

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 must 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.

Dnctwork

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

contact

MOUNT

Step 4--Place

INTRODUCTION
ThePA3Zpackaged
airconditioner
isfullyself-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
forrooftopapplications
witha field-supplied
plenum.
RECEIVING
ANDINSTALLATION
Step1--Check Equipment

tie downs,
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

For hurricane

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
duc_Tork,
consider
thefollowing:

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.
Recommended
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
withPA3Z
unitinstalled.

CONFIGURING
UNITSFORDOWNFLOW
(VERTICAL)
DISCHARGE

ELECTRICAL

19.17 ======--_
o

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 the 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. Prime trap
at the beginning of the cooling season start-up. Allowable glues for
condensate
trap connection
are: Standard ABS, CPVC, or PVC
cement..
1" (25mm)

SHOCK

MIN.

3
O

099013

Fig. 3 - Condensate
o

TRAP
OUTLET

Trap

2" min.

A05195

Fig. 2 - Area

Not to be Drilled

Than

3/4-in.
C00009

Fig. 4 - PVC Condensate

Trap

_GU_
BOITO_ OF U_IT

I_DO0_

CLEARANCES
TO CO_BTBJ5

MATL

lop o} _
SIDE 6_ _[_

o
OPPOSHED_C_ OPENINGS

NEC._E_ED_L_3_.

OUIDOOR
COIL

6ROU_£_ S_RFAC_S PO_ER t_

SIDEO_ _T
g12fl
[3199_
_0110_ 0F

_I_E

OPPOS]_[ DUCTOP[NI_GS

_OG68 [42 00_

........

0 [_000)

UNII

LEFT SIDE VIEW

A05201

UNIT
PA3Z024

UNIT HEIGHT
IN. [MM]

UNIT WEIGHT

ELECTRICAL
CHARACTERISTICS
208/230-1-80

Ib
293

kg
133

CENTER

OF GRAVITY
IN. [MM]

30.13 [765]

14.0 [356]

19.0 [483]

15.0 [381]
16.0 [406]

PA3Z030

208/230-1-60,

208/230-3-80

324

147

34.13 [867]

14.0 [356]

19.0 [483]

PA3Z036

208/230-1-60,

208/230-3-80

377

171

42.13 [1070]

14.0 [356]

19.0 [483]

19.8[503]

PA3Z042

208/230-1-60,

208/230-3-80

389

177

42.13 [1070]

14.0 [356]

19.0 [483]

21.9 [556]

PA3Z048

208/230-1-60,

208/230-3-80

384

175

42.13 [1070]

14.0 [356]

19.0 [483]

19.8[503]

PA3Z060

208/230-1-60,

208/230-3-80

433

197

42.13 [1070]

14.0 [356]

19.0 [483]

21.9 [556]

Fig.

- Unit Base Dimensions,

*Separate

d sconnect

point connection

PA3Z024-060

per NEO

is not used

C00008

Fig. 6 - Typical

Installation
4

Table
UNIT SIZE
NOMINAL

CAPACITY

OPERATING

l--Physical

Data

024

030

036

042

048

(ton)

2 - 1/2

3 - 1/2

(lb.)

268

299

352

364

359

408

WEIGHT

COMPRESSOR

Scroll

REFRIGERANT
Quantity (lb.)

(R-22)

REFRIGERANT

METERING

6.8

Ultra Tech Scroll
9.5

9.5

DEVICE

AccuRater
0.067

0.067

0.082

0.049

0.057

0.059
Copper

Face Area (sq. ft.)

10.7

12.5
TXV

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

11.1

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

26OO

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

1600

1875

Size (in.)

10x8

11x9

11x10

1/2 (t050)

3/4 (1050)

1(1050)

30 x 30

Motor HP (RPM)
CONNECTING DUCT SIZES

Round
14

Supply Air (in.)

Return Air (in.)
24 x 24

Return=Air Filters (in.)* Throwaway
*Required

24 x 24

filter sizes shown are based on the ARt (Air conditioning

& Refrigeration

24 x 24

institute)

24 x 30

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

type or 450

ft/min for high capacity type. Recommended filters are 1-in. thick.
Table

Unit Size

2--Minlmum

Airflow

for Safe

Electric

Heater

Operation

5kW

Minimum Airflow
7.5kW
lOkW

(CFM)
15kW

20kW

024

400

550

650

030

450

600

800

850

036

450

600

800

850

900

042

450

600

800

850

900

048

450

600

800

850

900

060

450

600

800

850

900

Step 7--Install

Electrical

Connections

UNIT

COMPONENT

DAMAGE

Failure to follow this caution
being installed.
1. Make

all electrical

ANSI/NFPA
governing
connections

HAZARD

may result in damage

connections

in accordance

to the unit
with NEC

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

C22.1

Canadian

codes.

Refer to unit wiring

Electrical

Code Part i and applicable

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 C22.1) 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 maximum 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
LEADTOUNITOROUND
Connect
theground
lead
tothechassis
using
theunitground
inthe
control
box(See
Fig.8and9).
ROUTINO
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
WIRINO
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
ENTRY

HOLE

HEATER LOW
• VOLTAGE PLUG

A05388

Fig. 8 - Control

Box Wiring

UNIT GROUND
GROUND
LEAD
SINGLE-PHASE
CONNECTIONS _ BLK- -/
3-PHASE
CONNECTIONS TO DISCONNECTI
_
......
"
YEL- _'
TO DISCONNECT PER NEC
PER NEC
L ...............................

C00012

Fig. 9 - Line Power Connections

WIRING
HOLE

/
/

°o/

BRN

RED

GRN

YEL

A05198

Fig. 7 - Unit Electrical

Connection

Unit Control
Power
A05213

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
_J_

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

RED

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.

Q v,o

Thermostat
and subbase

Step 1--Check

Power
A05214

Connections

PRE-

START-

(Sizes 048-060)

for Refi'igerant

Proceed as follows
charge the unit:

to locate

NOTE:
ELECTRICAL

SHOCK

HAZARD

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

recognized

goggles
2. Relieve

when checking or servicing
and recover all refrigerant

safety

practices

and wear

injury

when

power

and reclaim

using both highc. Cut component

while

to unit and install lockout
from

system

and low-pressure
ports.
connecting
tubing with

all refrigerant

tubing

cutter and remove component
d. Carefully
unsweat remaining
necessary.
Proceed

as follows

1. Remove

from unit.
tubing stubs

Oil can ignite when exposed

to flame.

operating

with unit.
inspections:
as

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.

solution.
If a
for Refrigerant

c. Inspect all field- and factory-wiring
connections.
sure that connections
are completed
and tight.

Adjustments

the unit. Do not operate

CHECKING
OPERATION

COOLING

Start and check
follows:

the unit for proper

the unit in cooling

mode

AND

HEATING

cooling

CONTROL

control

operation

switch in COOL

position

and FAN switch

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

tubing connections

and Make

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

all access panels.

b. Inspect for oil at all refrigerant

Cooling

2. Place SYSTEM
when

a. Inspect for shipping
and handling
damages,
such
broken lines, loose parts, disconnected
wires, etc.

has been opened

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.

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

the system

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

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

3. Make the following

practices.

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

4. Do not use torch to remove any component.
System
contains oil and refrigerant under pressure.
5. To remove
a component,
wear protective
goggles and

tag.
b. Relieve

system pressure
both high- and

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

touching
or disturbing
anything
inside terminal box if
refrigerant leak is suspected around compressor
terminals.

proceed as follows:
a. Shut off electrical

accepted

Install a filter drier whenever

Step 2--Start-Up

protective

connection

leak and to

for repair.

refrigerant system.
from system before

3. Never
attempt
to repair
soldered
refrigerant system is under pressure.

and repair a refrigerant

ports.

2. Repair leak following

EXPLOSION,

parts

Leaks

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

low-pressure

FIRE,

loose

START-UP

Unit Control

Fig. 11 - Control

and miscellaneous

3. Place

valve (RV) remains

system

in HEAT

position.

Observe

that

compressor, indoor fan and outdoor fan energize (Reversing
Valve is deenergized
in air conditioner
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).

switch

energized.

mode

when

(below room
mode when
(above room

Table

3--Required

REQUIRED
Model Size
O48
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

307

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 column 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
onthemodel
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.
Step 4--Indoor

Airflow

and Airflow

Adjustments

LOW-PRESSURE

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

For cooling

operation,

the recommended

450 cfm for each 12.000 Btuh of rated cooling
Table 6 shows dry coil air delivery
Tables 9-10
NOTE:

show pressure

capacity.

for horizontal

discharge

units.

drops.

Be sure that all supply-

from obstructions,

airflow is 350 to

interrupts

power to tire compressor

when

current

internal

temperature

excessive,

automatically
level.

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
in the proper direction:

1. Connect
fittings.

service

2. Energize

the compressor.

grilles are open. free

properly.

becomes

resets when the internal

gauges

3. The suction pressure

and return-air

and adjusted

OVERLOAD

This overload

rotating
NOTE:

SWITCH

should

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.
ELECTRICAL

SHOCK

2. Reverse

HAZARD

Failure to follow this warning
or death.

could result in personal

injury

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

Disconnect
electrical power to the unit and install lockout
before changing blower speed.

tag

All

PA3Z

blower

by changing

the lead connections

start-up

NOTE:

When the compressor

are factory

wired

for rated

BLOWER

The motor lead speed

airflow

SIZE

MOTORS

connections

an elevated

HIGH AIRFLOW

024

Tap 1

Tap 3

030
036

Tap 2
Tap 1

Tap 4
Tap 3

042

Tap 2

Tap 4

RATED AIRFLOW

is rotating

in the wrong

The FAN switch

on the thermostat

controls

When

switch

in the

the FAN

is placed

indoor

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

the thermostat

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

Low
Stage

High
Stage

048

Tap 1

Tap 3

Tap 2

Tap 4

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

060

Tap 1

Tap 3

Tap 2

Tap 4

deenergized.
COOLING

Controls

HIGH-PRESSURE

RELIEF

high side becomes

excessive.

controls.

VALVE

This valve opens when the pressure differential

between

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 air conditioner
heating mode or if the

HIGH AIRFLOW

internal-protection

the IFR

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

High
Stage

have the following

fan operation.

ON position,

Low
Stage

All compressors

the

cooling.

of Operation

SIZE

Step 5--Unit

direction,

level of noise and does not provide

FAN OPERATION

(indoor-fan
thermostat.

are as follows:

RATED AIRFLOW

nov," move to their

of the

operation.
FOR 208/230V

levels should

levels.

Step 6--Sequence

motors

pressure

normal

unit makes
Airflow can be changed
blower motor.

any two of the unit power leads.

the low and

OPERATION

(SIZES

motor

relay. On these
after G or Y is

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.

SCHEMATIC
208/230-3-60

PIELD
SUPPLY
POWER
UNIT ONLY
MAX!MUM WIR[
S!ZE 2 AWG

[OU]PGND

PRANI

m
8NN

G ................... GRN .................

................. R{D ....................

Y .................. YEL

?12 ......................
_HT .........
ACCESSSORY ELECTRIC _EAT

Y,'3

v]o

....

LEGEND

CLOS[S
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UNIT ¢04P0

Cc_

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CONSSL+
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24v S?I C[+ ++24V po+[_ ENR+

I 50ZP50063/

150
A06406

Fig. 12 - Typical

Single-Phase

Unit Electrical

Diagram

(Sizes 024-042)

SCHB_IA11C
2081230=3-60

CCH

FIELD
SUPPLY
UNI_I ONLY

NA×I_NM
WIRF
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YEL-

Y_l_

BLU

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A06407

Fig. 13 - Typical

Single-Phase

Unit Electrical

Diagram

(Sizes 048-060)

FIEL_

;LE%k',??'A%"S
....

]

,SEE SOI'IEMAIlC
ml m
ON HEAleR ACCESSORY. =
_
jL=_=

k
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/

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_,
j

!/I

=lSL
j .=_
mjl_ _
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SCHEMATIC
208/230"3"60

CCH

i_
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I ................

mmjl ........... K>l_"
.......................

[

I
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R ......................
REb

Y ................. YEL

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........................ IIIGRY

]N'aR_--

_RN

LEGEND

UNIT

......

COMPONENT ARRANGENENT

us[ 7_ D_E_ CO_P_ COND_O_S FORriled _S_Lt_T_O_

A06336

Fig. 14 - Typical

Three-Phase

[]nit Electrical

Diagram

(Sizes 030-042)

rEL#

SCHEMATIC
208/230-3-60

cC,

[

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r,+

mm_ ..........

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t,+

t ........
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iiZ
(+)b
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+
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i
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5
HPS

GRN

REO ...............

YEL ..................

8LK

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

BLK

@Xd+: ..............................................
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W_ .................
WFIT

PN_

...................
V]O

gR_ ..............................

L GEND
UNIT

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COMPONENt

AfiRANGEMEN

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130
A06337

Fig. 15 - Typical

Three-Phase

[]nit Electrical

Diagram

(Sizes 048-060)

CONTROL

P I JC

BOARD

__
STEP

W_T
v;o

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

ill
i

RELAY1

•

BRN

•

RELAY
1
1

_41

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AUTO

LIMIT

AUTO

LINIT

|
EL2

BLN_YEL

• _

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3

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I
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EL4

BLK

AUTO

LIMIT
"_

YEL

!
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
UNIT
SIZE

NOMINAL
VO LTAG E

VOLTAGE
RANGE
Min

(V-Ph-Hz)

Max

5--Electrical

COMPRESSOR
RLA

LRA

Data-PA3Z

OFM
FLA

IFM

ELECTRIC

FLA

4.1

3.8/5
7.5/10

18.1/20.8
36.1/41.7

5.4/7.2

26/30

--/--

024

208/230-1

- 60

187

253

10.9

54.0

0.9

208/230-1-60

187

253

13.5

72.5

0.9

4.1

208/230-3-60

187

253

9.0

63.0

0.9

4.1

208/230-1

- 60

187

253

17.5

88.0

1.5

6.0

036

208/230-3-60

253

10.7

77.0

1.5

6.0

208/230-1-60

187

253

19.4

lO4.O

1.5

6.0

208/230-3-60

187

253

11.4

88.0

1.5

6.0

208/230-1

- 60

187

253

24.7

116.o

1.5

7.7

208/230-3-60

187

253

12.8

91.o

1.5

7.7

208/230-1-60

187

253

28.0

118.o

3.0

7.7

54.3/59.3
16.3/16.3

60/60
20/20

187

253

18.5

123.o

3.0

7.7

10.4/12

29.3/31.3

35/35

20.8/24.1
20.8/24.1

42.3/46.3
42.3/46.3

45/45
45/45

11.3/15

31.3/36.1

55.3/61.4
29.4/29.4

50/70
35/35

page.

--/--

3.6/5

18.1/20.8

52.0/55.4

60/60

7.5/1o
11.3/15

36.1/41.7
54.2/62.5

74.5/81.5
97.1/107.5

80/80
100/100

5.4/7.2

26/30

61.9/66.9
20.9/20.9

70/70
25/25

--/--

3.8/5
7.5/10

10.4/12
20.8/24.1

33.9/35.9
46.9/50.9

40/40
50/50

7.5/10
11.3/15

20.8/24.1
31.3/36.1

46.9/50.9
59.9/66.0

50/50
60/60

15/20

41.7/48.1

73.0/81.0

70/90
40/40
60/70

3.6/5

18.1/20.8

31.7/31.7
54.3/57.8

7.5/1o
11.3/15

36.1/41.7
54.2/62.5

76.9/83.8
99.4/109.9

80/90
100/110

15/2o
5.4/7.2

72.2/83.3
26/30

122.0/135.9
64.2/69.2

110/150
70/80

--/--

3.6/5

10.4/12

21.7/21.7
34.8/36.8

25/25
40/45

7.5/1o

20.8/24.1

47.8/51.8

50/50

7.5/lO
11.3/15

20.8/24.1
31.3/36.1

47.8/51.8
60.8/66.8

50/50
60/60

15/2o

41.7/48.1

73.8/81.9
40.0/40.0

70/90
50/50

--/--

3.6/5
7.5/1o

18.1/20.8
36.1/41.7

62.6/66.1
85.1/92.1

80/80
100/100

11.3/15
15/2o

54.2/62.5
72.2/83.3

107.7/118.1
130.3/144.2

110/125
125/125

5.4/7.2

26/30

72.5/77.5

90/90
30/30
45/50

3.6/5

10.4/12

25.2/25.2
38.3/40.3

7.5/1o
7.5/lO

20.8/24.1
20.8/24.1

51.3/55.3
51.3/55.3

50/60
50/60

11.3/15
15/2o

31.3/36.1
41.7/48.1

64.3/70.3
77.3/85.4

60/70
70/80

45.7/45.7
68.2/71.7

60/60
90/90

--/--

3.6/5

18.1/20.8

7.5/1o

36.1/41.7

90.8/97.8

100/110

11.3/15

54.2/62.5

113.4/123.8
33.9/33.9

125/125
40/40

10.4/12
20.8/24.1

46.9/48.9
59.9/64.0

60/60
70/70

20.8/24.1
31.3/36.1

59.9/64.0
73.0/79.0

70/70
80/80

41.7/48.1

86.0/94.0

90/100

7.5/1o
7.5/1o
11.3/15
15/2o

See Legex_d oll following

--/--

3.6/5

3.6/5
208/230-3-60

--/--

7.5/1o
7.5/lO

--/--

060

30/30
50/50

26/30

--/--

060

50/50

5.4/7.2

--/--

048

51.1/56.1

70/70
90/100

--/--

048

45/50
60/70

67.0/73.9
89.5/100.0

--/--

042

25/25

41.2/44.7
63.8/70.7

36.1/41.7
54.2/62.5

--/--

042

18.6/18.6

7.5/lO
11.3/15

--/--

187

MOCP

18.1/20.8

--/--

036

-/-

MCA

3.6/5

--/--

030

FLA

POWER SUPPLY

21.8/21.8
44.4/47.9

--/--

030

HEAT

Nominal
kW

--/--

EXAMPLE:

Supply

voltage

230-3-80

AB = 228 v
FLA
LRA
MCA
MOCP
RLA

Full
Load
Arnps
Locked
Rotor
Amps
LEGEND
Minimum
Circuit
Amps
Maxhraum
Overourrent
Rated
Load
Amps

Average
EO =

Protection

227 v
Voltage

228 + 231 + 227
3

88j.2_e
3
229

231 v

NOTES:
1

Detemline

In compliance
with
NEC
(National
Electrical
Code)
requirements
for
multimotor
arid
combination
load
equipment
(refer
to
NED
Articles
430
and
440),
the
overourrent
protective
device
for
the
unit
shall
be
Power
Supply
fuse.
The
DGA
(OanadJan
Gas
Association)
units
may
be fuse
or circuit
breaken
Minimum
wire
size
is
based
on 60°0
copper
wire.
If other
than
80°©
wire
is
used,
or
if length
exceeds
wire
length
in table,
determine
size
from
NED.
Unbalanced
3-Phase
Supply
Vuitage
Never
operate
a motor
wheI_
a phase
imbalance
in supply
voltage
is greater
than
2%.
Use
the
following
furmuta
to determine
the
percentage
of voltage
imbalance.

Voltage
100

(AB)
(E_D)
(AD)

Maximum

voltage

deviation
a_erage

from
voltage

average

mc_xhnum deviation from a_rage
- 228
1v
- 229
2 v
- 227
2 v
deviation is 2 v.

Determine

percent

Imbalance

Voltage

Heater
If power
voltage,

capacity
(kW)
based
distribution
voltage
heater
kW
wJtl vary

voltage

100 x

imbalance.
2
-229
is

satisfactory

it is below the

voltage
voltage

on heater
voltage
to unit
varies
from
accordingly

volt_ge.

0.8%

more
than
IMPORTANT:
immediately.
-k

This amount of phase
imbalance
maximum allowable 2%

imbalance
x

229
231
229

2°/o,
If

oontciot
your
the
supply

local

phase
electric

imbalance
utility

company

of 208v
& 240v.
rated
heater

C03014

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--Dry

Coil

(Deduct

10 percent

Air

Data

Table

Delivery"

Legend

Horizontal

for 208

Volt

Discharge

Operation)

DISCHARGE
AIR
DELIVERY

0,1

0.2

0.3

Watts

100

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

Watt_

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 coil, 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.

c0il frosting may occur at air-

Table

Cooling

Charging

Chart

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

ODTemp. 52
(°F)
45
51
55
65
75
85
95
105
115
125

54
55

56
60
53

59
64
57

69
62
53

66
57

Suction
361

370

13
18

387

405

423

16
12

61
53

58
50

63
54

67
58

72
62

544

566

589

612

636

(°C)

Line Pressure (kPa)

442

462

482

502

523

19
14

21
17

12
10

14
12

17
14

19
16

24
29
35
41
46
52
COOLING

OPERATION

(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 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

SUCTION LINE TEMPERATURE
OD Temp.
(°C)

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

For longer life, operating

drain each

electrical

proper

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

injury

caution

HAZARD
warnings

could

result

in personal

when removing
combustible

Never operate

panels

any

and parts.

2. Remove

the filter becomes

the unit without

is supported

the mounting

by hand

bracket.

the blower

wheel from the housing:

a suitable

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

air filter

replace the filter with the same

clogged

Top Removal

When performing

installed.

See Table

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

1 for

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

with dust and lint.

(Outdoor-Coil
maintenance

that require

3. Remove

Side)

top removal,

and condensate

the wheel

the caked

form the housing.

on dirt from

the wheel

and the motor

using a brush.

or service procedures

of the unit top, be sure to perform

procedures

removing

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,

completely

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 mounting

shaft.

in the return- air duct system. Always

Step 2--Unit

the side access panel and unscrew

c. Make sure that the blower housing

Filter

IMPORTANT:

housing:

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

before

3. Never place anything
with the unit.

4. Remove

that

including

coil

drain pan inspection

and

lint and dirt accumulations

housing
with
attachment.

all of the routine

5. Remove

cleaning.

grease

a vacuum

cleaner,

from the wheel
using

a soft

and
brush

and oil with a mild solvent.

6. Reassemble
a. Slip the wheel back in the housing
parented in the correct direction.

ELECTRICAL

SHOCK

c. Reinsert

Disconnect
and
removing top.
Only qualified

tag

power

the

unit

injury

the motor

the mounting
locations.

before

d. Tighten

personnel

that require

Refer to the following

should

perform

maintenance

and

unit top removal.

top removal

procedures:
18

assembly

legs

the mounting

with the housing.

service

procedures

could result in personal

electrical

with the hub set screw

b. Install the filler panel.

HAZARD

Failure to follow this warning
or death.

service

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
economy,

Clean when necessary.

4. Check

whenever

duct (or

Clean 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 Steps 1 and 2, 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.

1. Remove

with

in the wheel

the housing

hub and align
mounting

hold

bolts to fasten the motor assembly

Table
UNIT
SIZE

800

700

800

900

1000

O24

.027

.034

040

.047

.053

.036

8--Wet

(:oil Pressure

Drop

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

O3O

1100

1200

1300

1400

1500

1600

1700

1800

1900

.042

.050

.055

.063

.072

.081

O36

.050

.055

.063

.072

.081

.090

.097

O42

.042

.049

.052

.059

.065

.071

.078

.085

.091

O48

.072

.081

.090

.097

.108

.120

.129

.139

O6O

.071

.078

.085

.091

.098

Table

UNIT

9--Filter

Pressure

Drop

FILTER
SIZE

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

0.09

Pressure

1500 1600 1700 1800 1900 2000 2100 2200 2300
0.14 0.15
0.10

0.11

0.12

0.13

0.14

0.15

0.16

0.17

0.18

Drop (in. wg)

¢FM

HEATER kW
5-20

600

800

1000

1200

1400

1600

1800

2000

2200

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.

1. 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.
(:oil, Indoor

the condenser

Coil, and Condensate

coil. evaporator

in Fig. 19.

assembly.

Drain

coil, and condensate

drain

pan at least once each year.
The coils are easily cleaned
the coils either before
obstructions,
including
airflow through
Straighten

when dry; therefore,

inspect

and clean
12mm

or after each cooling season. Remove all
weeds and shrubs, that interfere with the

the condenser

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. (:lean 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.
Step9--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.

Chart (Table

11) for troubleshooting

assembly.

START-UP
Use the Start-Up

Checklist

CHECKLIST

at the back of this manual.

Table

ll--Troubleshooting

SYMPTOM

Chart

CAUSE

REMEDY

Power failure

Call power company

Fuse blown or circuit breaker tripped

Reptace fuse or reset circuit breaker

Defective contactor, transformer, control relay, or
high-pressure, 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 and repair or replace

Compressor

Determine

Compressor
and outdoor fan
will not start

Compressor

will not

start

but

condenser

fan

runs

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

overcharge or undercharge

Excessive

operates continuously

head

Determine

cause and correct

Blocked outdoor coil

Determine

cause and correct

Defective run/start capacitor, overload or start relay

Determine

cause and replace

Faulty outdoor fan motor or capacitor

Replace

Restriction in refrigerant

Locate restriction and remove

system

Replace filter

Unit undersized for load

Decrease

UI temperature

set too low

Reset UI setting

Low refrigerant

charge

Locate leak, repair, and recharge

Suction

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

Recover excess refrigerant

overcharged

evacuate system, and re-

pressure

too

suction

pressure

load or increase unit size

Air in system

Low refrigerant

Excessive

evacuate system, and reshown on rating plate

Replace and determine cause

Recover refrigerant,
charge

Indoor or outdoor air restricted
pressure

power leads to the unit

Recover refrigerant,
charge to capacities

Insufficient line voltage

Air in system

Head

3-phase

Defective compressor

Dirty air filter

Compressor

cause and correct

Correct the direction of rotation by reversing the
Scroll compressor
Refrigerant

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

cause and replace

Determine

(size 030-

differential

cause

internal overload open

Low input voltage (20 percent low)
Three-phase

cause and correct

low

pressure

too

low

or air short-cycling

charge

Determine

evacuate system, and re-

cause and correct

Restriction in liquid tube
High Heat load

Check for leaks, repair and recharge
Remove restriction
Check for source and 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 filte_replace

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

Mode
psig

Refrigerant Discharge
Discharge Tempt

psig

Verify Refrigerant

charge using charging

* Measured

at suction

tMeasured

at liquid line leaving

Payne Heating

Manufacturer

tables

inlet to compressor

& Cooling

reserves

WB
WB

Refrigerant Suction
Suction Line Temp*

2006

Air:

PRESSURES-Heating

WB
WB
WB

PRESSURES
- Cooling
Refrigerant Suction

L3-L1
L3(R)

the right

Systems

outdoor

coil

• 7310 W Morris St * Indianapolis,

to change,

at any tirne_ specifications

IN 46231

and design

without

Printed in the USA.
notice

Edition Date:

and without obligation.

08/06

Catalo_
Replaces:

No: IM-PA3Z-02
IM- PA3Z-01

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PAYNE Package Units(both Units Combined) Manual L0610780

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