Payne PA4G Instruction Manual

Owner’s Information Manual
A09183
Fig. 1 – Unit PA4G
Our products are designed, tested and built in accordance with DOE standardized procedures; however, actual operating results and efficiencies may
vary based on manufacturing and supplier tolerances, equipment configuration, operating conditions and installation practices.
PA4G
14 SEER Single and Three Phase
Single Packaged Air Conditioner System
with R-410A Refrigerant
2-5 Nominal Tons (Sizes 24-60)
Technician Name
Phone Number
Address
Company Name
Date Installed
NOTE TO EQUIPMENT OWNER:
For your convience, please record the model and serial numbers of your new equipment in the spaces
provided. This information, along with the installation data and dealer contact information, will be
helpful should your system require maintenance or service.
UNIT INFORMATION
ACCESSORIES (List type of model #)
INSTALLATION INFORMATION
DEALERSHIIP CONTACT INFORMATION
This manual must be left with the eqipment owner.
NOTE TO INSTALLER:
Model #
Serial #

SAFETY CONSIDERATIONS
Improper installation adjustment, alteration, service, maintenance, or use
can cause explosion, fire, electrical shock, or other conditions which
may cause death, personal injury, or property damage. Consult a
qualified installer, service agency, or your distributor or branch for
information or assistance. The qualified installer or agency must use
factory-authorized kits or accessories when modifying this product Refer
to the individual instructions packaged with the kits or accessories when
installing.
Follow all safety codes. Wear safety glasses, protective clothing, and
work gloves. Use quenching cloth for brazing operations. Have a fire
extinguisher available. Read these instructions thoroughly and follow all
warnings or cautions included in literature and attached to the unit.
Consult local building codes, the current editions of the National
Electrical Code (NEC) NFPA 70.
In Canada refer to the current editions of the Canadian electrical Code
CSA C22.1.
Recognize safety information. This is the safety-alert symbol . When
you see this symbol on the unit and in instructions or manuals, be alert to
the potential for personal injury. Understand these signal words;
DANGER, WARNING, and CAUTION. These words are used with the
safety-alert symbol. DANGER identifies the most serious hazards which
will result in severe personal injury or death. WARNING signifies
hazards which could result in personal injury or death. CAUTION is
used to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
NOTE: Installer: This manual should be left with the equipment user.
Starting or Shutting Unit Off
To start the unit:
1. Turn on the electrical power supply to unit.
2. Select temperature and set MODE control to desired mode.
To shut unit off:
NOTE: If the unit is being shut down because of a malfunction, call
your dealer as soon as possible.
1. Set system MODE control to OFF.
2. Turn off the electrical power supply to unit.
OPERATING YOUR UNIT
The operation of your unit is controlled by indoor thermostat. You
simply adjust the thermostat and it maintains the indoor temperature at
the level you select. Most thermostats of cooling systems have 3
controls: a temperature control selector, a FAN control, and a SYSTEM
or MODE control. Refer to your thermostat owner’s manual for more
information.
To better protect your investment and to eliminate unnecessary service
calls, familiarize yourself with the following facts:
Cooling Mode
With the SYSTEM or MODE control set to COOL, your unit will run in
cooling mode until the indoor temperature is lowered to the level you
have selected. On extremely hot days, your unit will run for longer
periods at a time and have shorter “off” periods than on moderate days.
Heating Mode (if installed with optional electric
heat)
Your system may also be equipped with an electric heating source. On
cold days and nights, place your MODE control to HEAT and your
system will automatically turn on the supplemental heat in order to
maintain the level of comfort you have selected.
MAINTENANCE AND SERVICE
This section discusses maintenance that should be performed on your
system. Most maintenance should be performed by your dealer. You, as
the owner, may wish to handle some minor maintenance for your new
unit.
Routine Maintenance
All routine maintenance should be handled by skilled, experienced
personnel. Your dealer can help you establish a standard procedure.
WARNING
!
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury, death,
and/or property damage.
Installation and servicing of this equipment can be hazardous due to
mechanical and electrical components. Only trained and qualified
personnel should install, repair, or service this equipment.
WARNING
!
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal injury, death,
and/or property damage.
Do not store or use combustible materials, gasoline, or other flammable
vapors and liquids in the vicinity of this or any other appliance.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury and/or
death.
Before performing recommended maintenance, be sure the main power
switch to unit is turned off and lock-out tag is installed.
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal injury.
When removing access panels or performing maintenance functions
inside your unit, be aware of sharp sheet metal parts and screws.
Although special care is taken to reduce sharp edges to a minimum, be
extremely careful and wear appropriate clothing, safety glasses and
gloves when handling parts or reaching into the unit.
WARNING
!
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury, death or
property damage.
Do not use this unit if any part has been under water. Immediately call a
qualified service technician to inspect the unit and to replace any part of
the control system which has been under water.

PA4G: Owner’s Information Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
3
To assure proper functioning of the unit, flow of condenser air must not
be obstructed from reaching the unit. Clearance from the top of the unit
is 48 in. (1219 mm). Clearance of at least 36 in.(914 mm) is required on
sides except the power entry side (42 in. [1067 mm] clearance) and the
duct side (12 in. [305 mm] minimum clearance).
Maintenance and Care for the Equipment Owner
Before proceeding with those things you might want to maintain
yourself, please carefully consider the following:
Air Filters
The air filter(s) should be checked every 3 or 4 weeks and changed or
cleaned whenever it becomes dirty. Dirty filters produce excessive stress
on the blower motor and can cause the motor to overheat and shut down.
This unit must have air filters in place before it can be operated. These
filters can be located in one of at least two places. In many applications,
the installer will provide return air filter grilles mounted on the wall or
ceiling of the conditioned structure. In the instance of filter grilles, the
filters can simply be removed from the grille and replaced.
The other typical application is an accessory filter rack installed inside
the unit itself. The following information is given to assist in changing
filters used in these internal filter racks.
Filter kits are available as a purchased accessory or a factory installed
option. The same filter kit is included with the accessory economizers
and factory installed economizers. See Table 1 for filter sizes supplied
with accessory filter rack.
To replace or inspect filters in accessory filter rack (See Fig. 2):
1. Remove the filter access panel using a 5/16-in. nut driver.
2. Remove the filter(s) by pulling it out of the unit. If the filter(s) is
dirty, clean or replace with a new one.
When installing the new filter(s), note the direction of the airflow arrows
on the filter frame, which should be pointed at the indoor coil.
3. Reinstall filter access panel ensuring opening is air and water tight.
If you have difficulty locating your air filter(s) or have questions
concerning proper filter maintenance, contact your dealer for
instructions. When replacing filters, always use the same size and type of
filter that was supplied originally by the installer.
A09215
Fig. 2 – Unit Access Panel
A10063
Fig. 3 – Small Chassis Filter Access
WARNING
!
FIRE, EXPLOSION, ELECTRICAL SHOCK AND
CUT HAZARD
Failure to follow this warning could result in personal injury, death or
property damage.
1. TURN OFF ELECTRICAL POWER TO YOUR UNIT BEFORE
SERVICING OR PERFORMING MAINTENANCE.
2. When removing access panels or performing maintenance
functions inside your unit, be aware of sharp sheet metal parts and
screws. Although special care is taken to reduce sharp edges to a
minimum, be extremely careful when handling parts or reaching
into the unit. Wear safety glasses, glove, and appropriate
protective clothing.
Table 1 – Replacement Filter Sizes
Unit Size Filter Size
24 2 each 20 x 12 x 1
(508 x 305 x 25 mm)
30-36 2 each 20 x 12 x 1
(508 x 305 x 25 mm)
42-48 1 each 24 x 14 x 1 (610 x 356 x 25 mm),
24 x 16 x 1 (610 x 406 x 25 mm)
60*
*. Units with bent indoor coil.
1 each 24 x 16 x 1 (610 x 406 x 25 mm),
24 x 18 x 1 (610 x 457 x 25 mm)
CAUTION
!
UNIT OPERATION HAZARD
Failure to follow this caution may result in property damage.
Never operate your unit without filters in place. An accumulation of
dust and lint on internal parts of your unit can cause loss of efficiency
and blower motor and/or compressor damage.
Compressor
Access
Panel
Blower
Access
Panel
Control
Access
Panel
RETURN
DUCT COVER
(Remove for
lter access)
SMALL CHASSIS

PA4G: Owner’s Information Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
4
A10062
Fig. 4 – Large Chassis Filter Access
Replacing or inspecting filters in units with
economizers
Small Chassis (See Fig. 3)
1. Remove return air duct cover at rear of unit using a 5/16-in. nut
driver.
2. Remove the filter(s) by pulling it out and through the unit duct
opening. If filter is dirty, replace both filters with new ones.
When installing the new filters, note the direction of the airflow arrows
on the filter frame, which should be pointing at the indoor coil.
3. Reinstall duct cover ensuring opening is air and water tight.
Large Chassis (See Fig. 4)
1. Remove filter access door using a 5/16-in. nut driver.
2. Remove the filter(s) by pulling it out and through the unit filter
access door. If filter is dirty, replace both filters with new ones.
Units with bent indoor coils, install 24 x 18 x 1 (610 x 457 x 25 mm)
filter first and then install 24 x 16 x 1 (610 x 406 x 25) filter.
When installing the new filters, note the direction of the airflow arrows
on the filter frame, which should be pointing at the indoor coil.
3. Reinstall filter access door ensuring opening is air and watertight.
Fans and Fan Motors
Periodically check the condition of fan wheels and housings and
fan-motor shaft bearings. Contact your dealer for the required annual
maintenance.
Indoor and Outdoor Coils
Cleaning of the coils should only be done by qualified service personnel.
Contact your dealer for the required annual maintenance.
Condensate Drain
The drain pan and condensate drain line should be checked and cleaned
at the same time the cooling coils are checked by your dealer.
Compressor
All compressors are factory shipped with a normal charge of the correct
type of refrigeration grade oil. A compressor should rarely require
additional oil.
Condenser Fan
The fan must be kept free of all obstructions to ensure proper cooling.
Contact your dealer for any required service.
Electrical Controls and Wiring
Electrical controls are difficult to check without proper instrumentation.
If there are any discrepancies in the operating cycle, contact your local
dealer and request service.
Refrigerant Circuit
The refrigerant circuit is difficult to check for leaks without the proper
equipment. If inadequate cooling is suspected, contact your local dealer
for service.
Unit Panels
After performing any maintenance or service on the unit, be sure all
panels are fastened securely in place to prevent rain from entering unit
cabinet and to prevent disruption of the correct unit airflow pattern.
Regular Dealer Maintenance
In addition to the type of routine maintenance you might be willing to
perform, your unit should be inspected regularly by a properly trained
service technician. An inspection (preferably each year, but at least every
other year) should include the following:
1. Inspection and, if required, cleaning of the outdoor and indoor
coils.
2. Inspection and, if required, cleaning of the indoor coil drain pan.
3. Inspection and cleaning of blower wheel housing and motor.
4. Inspection of all supply-air and return-air ducts for leaks,
obstructions, and insulation integrity. Any problems found should
be resolved at this time.
5. Inspection of the unit base to ensure that no cracks, gaps, etc., exist
which may cause a hazardous condition.
6. Inspection of the unit casing for signs of deterioration.
7. Inspection of all electrical wiring and components to assure proper
connection.
8. Inspection for leaks in the refrigerant circuit. Pressure check to
determine appropriate refrigerant charge.
9. Inspection of compressor oil level by service person to ensure
proper oil level is maintained in the compressor when it is installed
and running.
10. Operational check of the unit to determine working conditions.
Repair or adjustment should be made at this time.
Your servicing dealer may offer an economical service contract that
covers seasonal inspections. Ask for further details.
Complete service instructions can be found in the unit Installation, Start-up and Service Instructions.
LARGE CHASSIS
FILTER
ACCESS
PANEL
WARNING
!
PERSONAL INJURY AND UNIT DAMAGE HAZARD
Failure to follow this warning could result in personal injury, death or
property damage.
Do not poke sticks, screwdrivers, or any other object into revolving fan
blades.
WARNING
!
EXPLOSION, BURN AND ENVIRONMENTAL HAZARD
Failure to follow this warning could result in personal injury, death or
property damage.
System under pressure. Relieve pressure and recover all refrigerant
before system repair or final unit disposal. Use all service ports and
open all flow-control devices, including solenoid valves.

PA4G: Owner’s Information Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
5
Warranty Certificate
Your unit has a limited warranty. Be sure to read the warranty carefully
to determine the coverage for your unit.
Before you call for service...
...check for several easily-solved problems.
If insufficient heating or cooling is suspected:
( ) Check for sufficient airflow. Check the air filter for dirt. Check for
blocked return-air or supply-air grilles. Be sure they are open and
unobstructed. If these checks do not reveal the cause, call your servicing
dealer.
If your unit is not operating at all, check the following list for easy
solutions:
( ) Check to be sure that the temperature specified by your User
Interface is set below the indoor temperature during the cooling season
or above the indoor temperature during heating season. Be sure the User
Interface is set to COOL or HEAT and not OFF.
( ) If your unit still fails to operate, call your servicing dealer for
troubleshooting and repairs. Specify the model and serial numbers of
your unit. (Record them in this manual in the space provided.) If the
dealer knows exactly which unit you have, he may be able to offer
suggestions over the phone, or save valuable time through
knowledgeable preparation for the service call.
In Case of Trouble
If you perform the steps above and unit performance is still
unsatisfactory, shut off the unit and call your dealer.

©2020 CAC/BDP
7310 W. Morris Street • Indianapolis, IN 46231 Catalog No: OG-PA4G-05
Edition Date: 04/20 Replaces: OG-PA4G-04
PA4G: Owner’s Information Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
6