Payne PG9MXA Series User manual

Owner's Manual
NOTE TO INSTALLER:
THIS MANUAL MUST BE LEFT WITH THE
EQUIPMENT USER.
USER: PLEASE READ ALL INSTRUCTIONS
IN THE MANUAL AND RETAIN ALL
MANUALS FOR FUTURE REFERENCE.
FIRE OR EXPLOSION HAZARD
Failure to follow warnings could result in iniury, death,
or property damage.
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
-Do not try to light any appliance.
-Do not touch any electrical switch; do not use any
phone in your building.
-Leave the building immediately.
-Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
-If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal
iniury and/or death.
Carbon Monoxide is invisible, odorless, and toxic!
Payne Heating and Cooling Systems recommends a
carbon monoxide alarm in your home, even if you do
not own a gas appliance. Locate the carbon monoxide
alarm in the living area of your home and away from
gas appliances and doorways to attached garages.
Follow the alarm manufacturer's instruction included
with the alarm.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal iniury,
death, or property damage.
Do not use this furnace if any part has been under water. A
flood-damaged furnace is extremely dangerous. Attempts to
use the furnace can result in fire or explosion. A qualified
service agency should be contacted to inspect the furnace and
to replace all gas controls, control system parts, electrical parts
that have been wet or the furnace if deemed necessary.
TABLE OF CONTENTS
FURNACE COMPONENTS ........................... 2
SAFETY CONSIDERATIONS ......................... 3
BEFORE STARTING YOUR FURNACE ................. 3
STARTING YOUR FURNACE ......................... 4
SHUTTING DOWN YOUR FURNACE .................. 5
PERFORMING ROUTINE MAINTENANCE ............. 6
FILTER MAINTENANCE ............................. 6
COMBUSTION AIR AND VENT SYSTEM .............. 8
WINTERIZATION ................................... 9
FURNACE MAINTENANCE ......................... 10
BEFORE YOU REQUEST A SERVICE CALL ........... 10
INSTALLATION DATA ............................. 12
As an ENERGY STAR
Partner, Carrier Corp.
has determined that this
product meets the
ENERGYSTAR®
guidelines for energy
efficiency.
EFFICIENCY
CERTIFIED a

FURNACE COMPONENTS
418
6
15
14
13
7
19
10
Two-Stage Furnace
A08316
(Furnace shown in upflow position; may be used in downflow or horizontal orientation or applications. Vent Elbow may be turned to a
different position, depending on type of installation)
1. Combustion-air intake connection (right or left side).
2. Burner sight glass for viewing burner flame.
3. Burner assembly (inside), operates with energy-saving, in-
shot burners and hot surface igniter for safe, dependable
heating.
4. Redundant gas valve. Safe and efficient. Features 1 gas con-
trol with 2 internal shutoff valves.
5. Vent outlet, uses PVC pipe to carry flue gas from the fur-
nace's combustion system (right or left side).
6. Inducer motor. Pulls hot flue gases through the heat ex-
changers, maintaining negative pressure for added safety.
7. Blower access panel safety interlock switch.
8. Air filter and retainer (location in furnace may vary).
9. Condensate drain connection, collects moisture condensed
from burned gases for disposal into home drain system.
(location in furnace varies)
10. Heavy-duty blower, circulates air across the heat ex-
changers to transfer heat into the home.
11.
12.
13.
14.
15.
16.
17.
18.
19.
Secondary condensing heat exchanger (inside). Wrings out
more heat through condensation. Constructed with polypro-
pylene-laminated steel to ensure durability.
Primary serpentine heat exchanger (inside), stretches fuel
dollars with the S-shaped heat-flow design. Solid construc-
tion of corrosion-resistant aluminized steel means reliabil-
ity.
Furnace control board.
3-amp fuse provides electrical and component protection.
Light emitting diode (LED) on furnace control board.
Status code light is for diagnosing furnace operation and
service requirements.
Pressure switch(es) ensure adequate flow of flue gas
through furnace and out vent system.
Rollout switch (manual reset) to prevent over temperature.
Junction box for 115-v electrical power supply. (May be
located on right or left side).
Transformer (24v) behind furnace control board provides
low-voltage power to furnace control board and thermostat.

SAFETY CONSIDERATIONS
Installing and servicing of heating equipment can be hazardous due
to gas and electrical components. Only trained and qualified
personnel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance flmctions such
as cleaning and replacing air filters. All other operations must be
performed by trained service personnel. Observe safety precautions
in this manual, on tags, and on labels attached to the furnace and
other safety precautions that may apply.
Recognize safety information. This is the safety-alert symbol /_.
When you see this symbol on the furnace and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. DANGER, WARNING, and CAUTION 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.
To minimize the possibility of serious personal injury, fire, damage
to your furnace, or improper operation, carefully follow these
safety rules which apply to both direct-vent and non-direct vent
applications:
• Your new gas furnace may have been installed in 1 of 2 ways, as
a direct-vent (2-pipe) application or as a non-direct vent
(1-pipe) application.
• In a direct-vent (2-pipe) application, your furnace uses air from
outside the home for combustion and vents flue gas to the
outdoors. This type of application will have 2 pipes running
from the furnace to the outdoors. In this application, the vent and
air-intake pipes must terminate outside the structure and must
not be obstructed in any way. Do not block or obstruct air
openings on furnace or spaces around furnace.
• In a non-direct vent (1-pipe) application, your furnace uses air
from adjacent to the furnace for combustion and vents flue gas
to the outdoors. This type of application will have only 1 pipe
running from the furnace to the outdoors. The other pipe will
terminate in the same space as the furnace and is the source of
combustion air for your furnace. Therefore, the furnace must not
be enclosed in an airtight room or be sealed behind solid doors.
It must have adequate airflow for efficient combustion and safe
ventilation. Do not obstruct the combustion-air pipe in any way.
The vent pipe must terminate outside the structure and must not
be obstructed in any way. Do not block or obstruct air openings
or space around furnace.
FIRE HAZARD
Failure to follow warnings could result in personal injury,
death, or property damage.
Keep insulation clear of furnace and maintain clearances
shown on unit clearance label.
Keep the area around your furnace clear and free of combustible
materials, gasoline, and other flammable liquids and vapors.
• Do not cover the furnace, store trash or debris near it, or in any
way block the flow of fresh air to the unit.
• In addition to the safety rules above, make sure that the
following combustion-air requirements are met for non-direct
vent applications:
• Combustion air must be clean and uncontaminated with chlorine
or fluorine. These compounds are present in many products
around the home, such as: water softener salts, laundry bleaches,
detergents, adhesives, paints, varnishes, paint strippers, waxes,
and plastics.
• Make sure the combustion air for your furnace does not contain
any of these compounds. During remodeling be sure the
combustion air is fresh and uncontaminated. If these compounds
are burned in your furnace, the heat exchangers may deteriorate.
• A furnace installed in an attic or other insulated space must be
kept free and clear of insulating material. Examine the furnace
area when the furnace is installed or when insulation is added.
Some insulation materials may be combustible.
• Should the gas supply fail to shut off or if overheating occurs,
shut off the gas valve to the furnace before shutting off electrical
supply.
This furnace contains SAFETY DEVICES which must be
MANUALLY RESET. If the furnace is left unattended for an
extended period of time, have it checked periodically for proper
operation. This precaution will prevent problems associated with
no heat, such as frozen water pipes, etc. See "Before You Request
Service Call" section in this manual.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in iniury, death, or
property damage.
Do not keep combustible materials, gasoline, and other
flammable liquids or vapors around your furnace.
CARBON MONOXIDE POISONING AND FURNACE
OPERATION HAZARD
Failure to follow this warning could result in personal injury,
death, or unit damage.
For proper and safe operation the furnace needs air for
combustion and ventilation. Do not block or obstruct air
openings on the furnace, air opening to the area in which the
furnace is installed, and the space around the furnace.
BEFORE STARTING YOUR FURNACE
Examine the furnace installation to determine that:
1. All flue gas carrying areas external to the furnace (i.e. china-
ney, vent connector) are clear and free of obstructions.
2. The vent connector is in place, slopes upward and is physic-
ally sound without holes or excessive corrosion.
3. The return-air duct connection(s) is physically sound, is
sealed to the furnace casing, and terminates outside the
space containing the furnace.
4. The physical support of the furnace is sound without sag-
ging cracks, gaps, etc. around the base.
5. There are no obvious signs of deterioration of the furnace.
6. The burner flames are in good adjustment, See Fig. 1 (by
comparison with pictorial sketches or drawings of the main
burner flame and, if applicable, the pilot burner flame).

Fig. 1- Burner Flame Adjustment
A92330
STARTING YOUR FURNACE
Instead of a continuously burning pilot flame which wastes
valuable energy, your furnace uses an automatic, hot surface
ignition system to light the burners each time the thermostat signals
the furnace to start.
Follow these important safeguards:
• Never attempt to manually light the burners with a match
or other source of flame.
• Read and follow the operating instructions on inside of
main furnace door, especially the item that reads as fol-
lows:
"Wait 5nfinutes to clear out any gas. Then smell for gas,
including near the floor. If you smell gas, STOP! Fol-
low "B" in the safety information on furnace label. If you
don't smell gas, go to the next step."
• If asuspected malfunction occurs with your gas control
system, such as the burners do not light when they
should, refer to the shutdown procedures on inside of
main furnace door, or in the "Shutting Down Your Fur-
nace" section and call your dealer as soon as possible.
FIRE AND EXPLOSION HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
Should the gas supply fail to shut off or if overheating occurs,
turn off the manual gas valve to the furnace BEFORE turning
off the electrical supply and install lockout tag.
• CHECK AIR FILTER: Before attempting to start your
furnace, be sure the furnace filter is clean and in place.
See "Perfornfing Routine Maintenance" section in this
manual. Do not run the furnace without a filter in place.
Then proceed as follows:
STEPS FOR STARTING YOUR FURNACE
1. Set your room thermostat to the lowest temperature setting.
2. Close the external manual gas valve. See Fig. 2.
Fig. 2 - Close Valve
3. Turn OFF electrical supply to the furnace. See Fig. 3.
A06188
Fig. 3 - 3hrn Off Electrical Supply A92185
4. Remove the main furnace door.
5. Turn the control switch on the gas control to the OFF position
and wait 5nfinutes. Then smell for gas, including near the
floor. If you smell gas, STOP! Follow "B" on furnace label.
If you don't smell gas, go to next step. See Fig. 4.
Fig. 4 - Control Switch to OFF
A05118
6. After waiting 5 nfinutes, turn control switch on the gas control
to the ON position. Turn the control switch to ON. See Fig.
5.

Fig.5 - Control Switch to ON
A08348
7. Replace main furnace door.
8. Turn ON the electrical supply to the furnace and wait I minute.
9. Open the external manual gas valve. See Fig. 6.
!
Fig. 6 -Open Valve
A06189
10. Set the room thermostat to a temperature slightly above the
room temperature. This will automatically signal the furnace
to start.
11. When the furnace receives the start signal, the inducer is star-
ted. When the pressure switch senses that there is sufficient
combustion air, the hot surface igniter is energized.
After the hot surface igniter is heated for 17 seconds, the gas
valve permits gas to flow to the main burners. After ignition
and a time delay of about 60 sec, the furnace blower will start.
Variable-capacity furnaces start at low speed until the control
makes the necessary adjustments to operate the blower at
either the low- or high-heat speed.
NOTE: If the main burners fail to ignite after four attempts, the
furnace control system will lock out. If lockout occurs, main
burners fail to light, or blower does not come on, shut down the
furnace and call your dealer for service.
12. Set your thermostat to the temperature that satisfies your
comfort requirements. SUGGESTION: Setting the thermo-
stat back a few degrees--and compensating for the differ-
ence with warmer clothing--can make a big difference in
your fuel consumption on extremely cold days. The few de-
grees at the top of your thermostat "comfort level" are the
most costly degrees to obtain.
When the room temperature drops below the temperature selected
on the thermostat, the furnace will switch on automatically. When
the room temperature reaches the setting selected on the thermostat,
the furnace will be automatically switched off.
• Some thermostats have a "FAN" switch with 2 selections:
AUTO and ON. When thermostat is set on AUTO, the furnace
blower cycles on and off, controlled by the thermostat. In ON
position, the furnace blower runs continuously. Continuous fan
keeps the temperature level in your home more evenly balanced.
It also continuously filters the indoor air.
• The blower speed can be increased or decreased if desired due to
change of seasons, large gatherings in your home, etc. Change
your FAN from ON to OFF for 1 to 3 seconds (or AUTO
depending on your thermostat), and then return to ON. The
blower will switch to the next higher speed. If the blower is
running on its highest speed, a request to change will direct the
blower to return to its lowest speed.
SHUTTING DOWN YOUR FURNACE
Should you need to shut down your furnace for service or
maintenance, you will need to turn the furnace off. The following
procedures must be followed:
1. Set your room thermostat to the lowest temperature setting.
2. Close the external manual gas valve. See Fig. 7.
Fig. 7 - Close Valve
A06188
3. Turn off electrical supply to the furnace. See Fig. 8.
A92185
Fig. 8 - 1hrn Off Electrical Supply
4. Remove main furnace door.
5. Turn control switch on the gas control to OFF position. See
Fig. 9.

©
Fig. 9 -Control Switch to OFF
A05118
6. Replace main furnace door.
7. If the furnace is being shut down because of a malfunction, call
your dealer as soon as possible.
[]NIT AND PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in damage to the
furnace and other property damage.
Furnace is not to be installed, operated, and then turned off
and left turned off in an unoccupied structure during winter.
(See "Winterization" section.)
PERFORMING ROUTINE MAINTENANCE
NOTE: The qualified installer or agency must use only
factory-authorized replacement parts, kits, and accessories when
modifying this product.
Installing and servicing of heating equipment can be hazardous due
to gas and electrical components.
Only trained and qualified personnel should install, repair, or
service heating equipment. Untrained personnel can perform basic
maintenance functions such as cleaning and replacing air filters.
All other operations must be performed by trained service
personnel. Observe safety precautions in this manual, on tags, and
on labels attached to the furnace and other safety precautions that
may apply.
With proper maintenance and care, your furnace will operate
economically and dependably. Instructions for basic maintenance
are found on this and the following pages. However, before
beginning maintenance, follow these safety precautions:
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Turn off electrical power supply to your furnace before
removing the access doors to service or perform maintenance.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Although special care has been taken to minimize sharp
edges, be extremely careful when handling parts or reaching
into the furnace. Wear safety glasses, gloves, and
appropriate protective clothing.
FILTER MAINTENANCE
[]NIT PERFORMANCE HAZARD
Failure to follow this caution may result in product damage.
Never operate your furnace without a filter in place, Doing
so may damage the furnace blower motor. An
accumulation of dust and lint on internal parts of your
furnace can cause a loss of efficiency,
A dirty filter will cause excessive stress on the furnace, heat
exchanger, and blower motor and can cause it to overheat and
automatically shut down. The furnace filter should be checked
every 4 weeks and cleaned or replaced if necessary.
If installed with factory-specified disposable media filter, check or
replace filter before each heating and cooling season. Replace
disposable media filter at least once a year.
If your furnace filter needs replacing, be sure to use the same size
and type of filter that was originally specified.
The air filter for the furnace may be located in the blower
compartment or in a media cabinet attached to the side or bottom
of the furnace casing. If air filter has been installed in another
location, contact your dealer for instructions. To inspect, clean
and/or replace the air filter(s), follow these steps:
1. Turn off electrical supply to the furnace.
2. Remove door/access panel.
3. Remove air filter from furnace.
4. Inspect the filter. If torn replace it.
AIR FILTER(S) LOCATED IN BLOWER COMPARTMENT:
a. Remove main furnace door.
b. Remove blower access panel. (See Fig. 10.)
AIR FILTER(S) LOCATED IN BLOWER COMPARTMENT
BOTTOM:
a. Slide filter retainer sideways until it is free of latch. See
Fig. 11.
b. Slide air filter out of furnace. See Fig. 12.
AIR FILTER(S) LOCATED IN BLOWER COMPARTMENT
SIDE:
a. Remove filter retainer from latch. See Fig. 13.
b. Gently remove air filter and carefully turn the dirty side
up (if dirty) to avoid spilling dirt from the filter. See
Fig. 14.

NOTE: If washable filter that was shipped with the furnace has
been replaced by:
• Factory specified disposable media filter--Do not clean.
If dirty, replace only with media filter having the same
part number and size. Install with airflow direction ar-
row pointing towards blower.
• Electronic Air Cleaner (EAC), refer to the EAC Owner's
Manual for maintenance information.
5. If washable filter, wash filter (if dirty) in a sink, bathtub, or
outside with a garden hose. Always use cold tap water. A
mild liquid detergent may be used if necessary. Spray water
through filter in the opposite direction of airflow. Allow fil-
ter to dry.
6. Reinstall clean air filter.
7. Reinstall filter retainer (for blower compartment locations
only.)
8. Replace blower access panel and main furnace door or
filter cabinet door. (See Fig. 15).
9. Turn on electrical supply to the furnace.
If your furnace air filter needs to be replaced, be sure to use a
factory-authorized filter of the same size that was originally
supplied. Use the filter table and compare your furnace size with
the proper filter size.
Fig. 12 - Slide Filter Out (Bottom Inlet)
A93011
A93012
Fig. 13 -Release Filter Retaining Rod (Side Inlet)
Fig. 10 -Blower Access Panel
A93204
A93013
Fig. 14 -Slide Filter Out of Furnace (Side Inlet)
A93010
Fig. 11 -Release Filter Retaining Rod (Bottom Inlet)
Fig. 15 -Replace Blower Access Panel
A93205

FURNACE CASING WIDTH
IN (MM)
17-1/2 (445)
21 (533)
24-1/2 (610)
Table 1 -Furnace Air Filter Table
FILTER QUANTITY AND SIZE *
SIDE RETURNt*
IN (MM)
(1) 16 x 25 x 3/4 1-
(406 x 635 x 19) 1-
(1) 16 x 25 x 3/4
(406 x 635 x 19)
(1) 16 x 25 x 3/4
(406 x 635 x 19)
BOTTOM RETURN*
IN (MM)
(1) 16 x 25 x 3/4
(406 x 635 x 19)
(1) 20 x 25 x 6/4 1-
(508 x 635 x 19) 1-
(1) 24 x 25 x 6/4 1-
(610 x 635 x 19) 1-
FILTER TYPE*
3/4" (19 mm) thick washable
3/4" (19 mm) thick washable
3/4" (19 mm) thick washable
* Filters with a side return-air may have a different filter size. Measure the filter to obtain the correct size.
J- Factory-provided with furnace.
PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal injury.
Use care when cutting support rods in filters to protect against
flying pieces and sharp rod ends. Wear safety glasses, gloves,
and appropriate protective clothing.
COMBUSTION AIR AND VENT SYSTEM
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal iniury
or death.
If holes are found or if the vent pipe is obstructed or is not
connected, toxic fumes can escape into your home. DO NOT
OPERATE YOUR FURNACE. Call your dealer for service.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal
iniury or death.
If dirt, rust, soot, or scale accumulations are found, call
your dealer. Do not operate your furnace.
1. Turn off electrical supply to the furnace and remove the
main furnace door.
2. Remove burner enclosure front. Inspect the gas burners, ig-
niter area, and remainder of furnace for dirt, rust, soot or
scale.
©
CARBON MONOXIDE POISONING AND FURNACE
OPERATION HAZARD
Failure to follow this warning could result in personal iniury,
death, or unit damage.
For proper and safe operation the furnace needs air for
combustion and ventilation. Do not block or obstruct air
openings on the furnace, air opening to the area in which the
furnace is installed, and the space around the furnace.
Visually inspect the combustion area and vent system before each
heating season. Make sure that all PVC pipes leading into the
combustion area and vent are free from any cracks and sags. An
accumulation of dirt, soot, or rust can mean a loss of efficiency and
improper performance. Buildups on the main burners can cause
faulty firing. This "delayed ignition" is characterized by an
alarmingly loud sound.
Check the combustion-air intake adjacent to the furnace or outside
your home for blockage. Also check the vent pipe on the outside of
your home for blockage.
NOTE: If your furnace makes a loud noise when the main burners
are ignited, shut down the furnace and call your servicing dealer.
Use your flashlight and follow these steps for inspecting the
combustion area and vent system of your furnace:
Fig. 16 - Upflow Burner Enclosure
A00223
Fig. 17 - Downflow Burner Enclosure
A00224
3. Inspect the combustion-air and vent PVC pipes for sags,
holes, cracks, water leaks, blockage or disconnections. Hori-
zontal portions of vent pipe must slope downward toward
the furnace.
4. Reinstall burner enclosure front.
5. If your furnace is free of the above conditions, replace main
furnace door and turn on electrical and gas supplies to the
furnace.

6. Start your furnace and observe its operation. Watch the
burner flames to see if they are clear blue, almost transpar-
ent. If you observe a suspected malfunction, or the burner
flames are not clear blue, call your dealer. See Fig. 18.
7. Pour 1 quart of antifreeze into funnel/tube. Antifreeze
should run through inducer housing, overfill condensate
trap, and flow into open field drain. See Fig. 20.
?
Fig. 18 - Burner Flame Adjustment
WINTERIZATION
A92330
[]NIT AND PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in damage to the
furnace and other property damage.
If the furnace is installed in an unconditioned space where the
ambient temperatures may be 32 ° F (0 ° C) or lower, freeze
protection measures must be taken to prevent minor property
or product damage.
Since the furnace uses a condensing heat exchanger, some water
will accunmlate in the unit as a result of the heat transfer process.
Therefore, once it has been operated, it cannot be turned off and
left off for an extended period of time when temperatures will
reach 32°F (0°C) or lower unless winterized. Follow these
procedures to winterize your furnace:
1. Obtain propylene glycol (RV/swimming pool antifreeze or
equivalent).
Fig. 19 - Antifreeze into Funnel /_be
g)
A06457
[]NIT COMPONENT DAMAGE HAZARD
Failure to follow this caution may result in damage to the
furnace and other property damage.
Do not use ethylene glycol (Prestone II antifreeze coolant or
equivalent). Failure of plastic components may occur.
2. Turn off electrical supply to your furnace.
3. Remove main furnace door.
4. Remove upper inducer housing drain connection cap. See
Fig. 19.
5. Connect field-supplied l/2-in. (13 ram) ID tube to upper
inducer housing drain connection.
6. Insert field-supplied funnel into tube. Fig. 20 -Drain Connection Cap
A06456

8. Remove funnel and tube from inducer housing and replace
drain connection cap and clamp.
9. Replace main furnace door.
10. Propylene glycol need not be removed before restarting fur-
nace.
FURNACE MAINTENANCE
Your furnace represents an important investment in your family's
comfort and your home's value. In addition to the type of routine
maintenance you might be willing to do, your furnace should be
inspected regularly by a properly trained service technician. To
keep it performing properly and to prevent future problems, have a
trained service specialist give your furnace a professional check-up
annually. When the furnace is being inspected for condition and
operation have the Qualified Service Agency check the following
items:
1. Check all flue gas passages including main and pilot burn-
ers, heat exchanger, and vent.
2. Check electrical wiring and connections.
3. Check supply and return air ducts for leakage, blockage and
connections to furnace.
4. Check circulating air blower wheel and motor. Clean them
if required.
5. Perform an operational checkout on the furnace to be sure
safety controls function and that furnace operates properly.
For additional information, the Qualified Service Agency can
consult the installation instructions for the furnace.
BEFORE YOU REQUEST A
"SERVICE CALL"
If your furnace is not operating or not performing properly,
you may save the expense of a service call by checking a few
things yourself before calling for service.
NOTE: Record the LED status code BEFORE removing the
blower access door or turning off l15-v power to the furnace.
Removing the blower access door or turning off the l15-v power
will end the LED status code display and erase the code from the
control's memory.
For insufficient airflow:
• Check for dirty air filter(s).
• Check for blocked return-air or supply-air grilles. Be sure they
are open and unobstructed.
If problem still exists, call your dealer for service.
If furnace fails to operate:
Follow this checklist step by step, advancing to the next stop only
if furnace fails to start.
• Check thermostat for proper temperature. Is thermostat set above
room temperature?
• Is thermostat set to HEAT mode?
• Check fuses and circuit breakers. Is the electrical power supply
switch on?
• Is the manual shut-offvalve in the gas supply pipe leading to
the furnace open?
NOTE: Turn off electrical supply before continuing with
checklist.
• Is control switch on gas valve in ON position? (Follow start-up
procedures if you must reset switch to ON position.)
• Check manual reset flame rollout switch located on the burner
box. See Furnace Components. If furnace has experienced high
temperature conditions, this switch will shut off the furnace.
Reset it by pushing the button on the switch. If it trips again,
shut down the furnace and call for service. See "Shutting Down
Your Furnace" section in this manual.
• Check for obstructions around the vent termination.
If your furnace still fails to operate, call your service representative.
For your convenience, record the furnace product and serial
numbers on back page. Should you ever require service, you will
have ready access to the information needed by your service
representative.
This furnace has a light emitting diode (LED) status code display
to aid the installer, service technician, or homeowner while
installing or servicing the unit. The LED code can be seen by
removing the main furnace door and viewing LED through the
view port in the blower access panel.
10

NOTE TO EQUIPMENT OWNER:
For your convenience, 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.
FURNACE
Model #
Serial #
AIR CONDITIONER OR HEAT PUMP
Model #
Serial #
INDOOR COIL (Furnace Coil or Fan Coil)
Model #
INSTALLATION INFORMATION:
Date Installed
DEALERSHIP CONTACT INFORMATION:
Company Name
Address
Phone Number
Technician Name
Serial #
NOTE TO INSTALLER:
This manual must be left with the equipment owner.
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':r2008 Payne Heating & Cooling Systems •7310 W, Morris St. • Indianapolis, IN 46231 Printed in U,S,A, Edition Date: 12/08
Manufacturer reserves the right to change, at any time, specification8 and design8 without notice and without obligations,
Catalog No: OG-PG9MXA-03
Replaces: OG- PGgMXA-02
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