Marvair AVG24 Operation manual

Part # 015177/07-2
User's Information
GPac Wall Mount
Air Conditioner with Gas Heat
Models AVG24-30-36-42-48-60
WARNING
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury, death or property
damage.
Do not store or use gasoline or other ammable vapors or 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 can not reach your gas supplier, call the re department.
Installation and service must be performed by a qualied installer, service agency or by the
gas supplier.
WARNING
• If the information in these instructions are not followed exactly, a re, carbon monoxide
poisoning or explosion may result causing property damage, personal injury or loss of
life.
• Read all instructions carefully prior to beginning the installation. Do not begin installation
if you do not understand any of the instructions.
• Improper installation, adjustment, alteration, service or maintenance can cause property
damage, personal injury or loss of life.
• Installation and service must be performed by a qualied installer, service agency or the
gas supplier in accordance with these instructions and in compliance with all codes and
requirements of authorities having jurisdiction.
INSTALLER: Afx the instructions on the inside of the building adjacent to the thermostat.
END USER: Retain these instructions for future reference.
Manufactured By:
Marvair® Division of AIRXCEL®, Inc.
P.O. Box 400 • Cordele, Georgia 31010
156 Seedling Drive • Cordele, Georgia 31015
[phone] • Fax [phone]
E-mail: [email protected] • Internet: www.marvair.com

2GPac Users Information 7/07-2
AVERTISSEMENT
DANGER D'INCENDIE OU D'EXPLOSION
Ne pas respecter strictement les mises en garde de sécurité peut entraîner blessures
graves, mort ou dégâts matériels.
N'entreposez pas et n'utilisez pas d'essence ou autres vapeurs ou liquides inammables à
proximité de cet appareil ou de n'importe quel autre.
CONDUITE À TENIR SI VOUS SENTEZ LE GAZ
• N'essayez pas de mettre en marche un quelconque appareil.
• Ne touchez à aucun interrupteur électrique, n'utilisez pas de téléphone dans votre
domicile.
• Quittez immédiatement les lieux.
• Appelez immédiatement votre fournisseur de gaz à partir d'un téléphone du voisinage.
Suivez les instructions qu'il vous donnera.
• Si vous ne pouvez pas le joindre, appelez les pompiers.
Installation et interventions doivent être effectuées par un installateur ou une agence de
dépannage qualiés, ou par le fournisseur de gaz.
AVERTISSEMENT
Si les informations de ces instructions ne sont pas suivies exactement, il peut en résulter
incendie, empoisonnement au monoxyde de carbone ou explosion, causant dégâts
matériels et dommages corporels ou même mort.
• Lisez soigneusement toutes les instructions avant de commencer l'installation. Ne la
commencez pas si vous n'avez pas assimilé toutes ces instructions.
• Une mauvaise exécution d'installation, réglage, altération, intervention ou entretien peut
causer dégâts matériels et dommages corporels ou même mort.
• Installation et interventions doivent être effectuées par un installateur ou une agence de
dépannage qualiés, ou par le fournisseur de gaz en conformité avec toutes les normes
et exigences des autorités ayant juridiction en la matière.
How To Use This Manual
This manual is intended to be a guide to the use and maintenance of the Marvair®GPac line of wall mounted
air conditioners with gas heat. It contains installation, troubleshooting, maintenance, warranty, and application
information. The information contained in this manual is to be used by the user as a guide only. This manual
does not supersede or circumvent any applicable national or local codes. For information on the efciency,
cooling and heating performance, please refer to the GPac Product Data Sheets. The most current version of
all Marvair literature can be found on our website at www.marvair.com.
First read Chapter 1 and scan the entire manual before starting the unit as described in the chapter. Chapter 1
contains general, descriptive information.
If a malfunction occurs, follow this troubleshooting sequence:
1. Make sure you understand how the GPac works.
2. Identify and correct installation errors.
3. Refer to the troubleshooting information.
4. Identify defective part(s).
If you are still unable to correct the problem, contact the Factory at 1-800-841-7854 for additional assistance.

3GPac Users Information 7/07-2
This is the safety alert symbol . When you see this symbol on the GPac unit and in the instruction manuals be
alert to the potential for personal injury. Understand the signal word DANGER, WARNING and CAUTION.
These words are used to identify levels of the seriousness of the hazard.
Failure to comply will result in death or severe personal injury and/or property
damage.
Failure to comply could result in death or severe personal injury and/or property
damage.
Failure to comply could result in minor personal injury and/or property
damage.
IMPORTANT is used to point out helpful suggestions that will result in improved installation, reliability or
operation.
Voici le symbole d'alerte concernant la sécurité . Quand vous le voyez sur l'unité GPac et dans
les manuels d'instructions, soyez conscient du risque de blessure personnelle. Assimilez la signication des
mots de mise en garde DANGER, AVERTISSEMENT et ATTENTION. Ils sont utilisés pour qualier les
niveaux de gravité du risque.
La non-observation entraînera des blessures graves voire mortelles et/ou
des dégâts matériels.
La non-observation pourrait entraîner des blessures graves voire
mortelles et/ou des dégâts matériels.
La non-observation pourrait entraîner des blessures et/ou des dégâts
matériels mineurs.
IMPORTANT est utilisé pour mettre en évidence des suggestions utiles qui peuvent améliorer installation,
abilité ou fonctionnement.
The manual will be divided into four parts as follows:
• Safety Rules
• Start-Up
• Maintenance
• Warranty
!WARNING
!CAUTION
!DANGER
Safety Rules .........................................................................................................................4
Start-Up ................................................................................................................................5
Cooling Mode ..................................................................................................................6
Heating Mode ..................................................................................................................6
Maintenance .........................................................................................................................7
Parts List............................................................................................................................. 11
Warranty .............................................................................................................................13
Table of Contents
!AVERTISSEMENT
!ATTENTION
!DANGER

4GPac Users Information 7/07-2
Safety Rules
1. The GPac wall mounted air conditioner with a gas furnace and the area around the unit must be kept clear
and free of any combustible materials, including gasoline and other ammable liquids. See Chapter 4, Safe
Installation Requirements and Chapter 5, Installation in the Installation Instructions.
2. The GPac wall mounted unit must be kept free and clear of insulating material. Insulating materials may
be combustible. Ductwork must be of the correct material and must be properly insulated. Do not use duct
liner or any combustible material on the inside of the supply duct within four feet of the unit. See Porting
and Ductwork section in the Installation Instructions.
3. The proper and safe operation of the unit requires combustion air for operation of the gas heater and
ventilation air for proper operation of the cooling cycle. Do not block the combustion or ventilation air
intake or exhaust. Refer to the Installation Instructions for the required clearances around the unit. The
required clearances are also shown on the Data plate on the unit.
4. Be familiar with signals of a possible lack of or reduction of combustion air. See Air Inlet and Outlet
section of the User's Information.
5. Refer to Start-up section of the User's Information for starting and shutting down the GPac air conditioner
with gas heat.
6. Should the gas supply fail to shut off or if overheating occurs, shut off the gas valve to the unit before
shutting off the electrical supply.
7. Become familiar with all controls and shut-off valves. Make sure you know how to shut off gas and
electrical power to the unit. Do not wait for an emergency before locating the gas valve and the electrical
disconnect switch. If the furnace is to be shut down for an extended period of time, turn off both gas and
electrical power.
8. Do not use this unit if any part has been under water. A ood damaged furnace is extremely dangerous.
Attempts to use the furnace can result in re or explosion. Immediately call a qualied service technician
to inspect the unit and replace all gas controls, control system parts, electrical parts that have been wet or
to replace the unit if deemed necessary.
9. Each month check:
a. To make certain that the ue vent is not obstructed. (See the Venting of the Furnace section in the
User's Information.)
b. To make sure the vent connector is in place, and is physically sound and without holes or excessive
corrosion. (See Venting section of the Installation Instructions.)
WARNING
Failure to observe and follow Warnings and Cautions and these Instructions could result in
death, bodily injury or property damage. Read this manual and follow its instructions and
adhere to all Cautions and Warnings in the manual and on the GPac unit.
AVERTISSEMENT
La non observation et l'ignorance des ces AVERTISSEMENT et ATTENTION et de ces
instructions peut entraîner mort, dommages corporels ou dégâts matériels. Lisez
ce manuel et suivez ses instructions, et tenez compte de tous les ATTENTION et
AVERTISSEMENT dans ce manuel et sur l'unité GPac.

5GPac Users Information 7/07-2
c. The supply air and return air duct connections to verify that they are physically sound, are sealed to the
furnace casing. (See Porting and Ductwork section of the Installation Instructions.)
d. To make certain that there are no signs of deterioration of the unit and that the unit is physically sound
without cracks, gaps or sagging.
e. The condensate line to make sure that condensate can ow free from the unit and the line is not
obstructed.
f. The air lters to make certain that they are not dirty. Clean and/or replace as required. The berglass
disposable type should be REPLACED before they become clogged. Dirty lters are can severely
restrict air ow and are a common cause of complaints of inadequate heating and cooling.
Filters are located behind the front panel. To change the lter, remove the front panel and slide the
lters out. Replacement lters should be ONLY of the type and size as the original Marvair supplied
lters.
g. To verify that the burner ame is in good adjustment.
Allow the unit to operate for a few minutes to establish normal burning conditions. Look at the ames
on the burners. They should be predominately blue in color and robust in appearance. The ame
should be in the middle of the heat exchanger tubes. Check to see that all the burners are lit and that
the ame does not impinge on the sides of the heat exchanger. Observe the ame. There should be
little or no change to in the shape or size of the ame. Changes in the shape and size of the ame may
indicate a leak in the heat exchanger. See gure 1.
Distorted ame or yellow tips of the natural gas ame or long yellow tips on LP gas ames may be
caused by one or more of the following:
1. lint or dirt inside the burner or burner ports,
2. lint or dirt at the air inlet between the burner and the manifold pipe, or
3. an obstruction over the burner plate.
If any of these are visible, turn the unit off and use a vacuum or a soft brush to clean the affected areas.
It is recommended that the unit be inspected by a qualied service technician to thoroughly check and inspect
the unit prior to each heating season.
Figure 1. Burner Flame
Start-up
Before lighting the unit, smell around the unit for gas. Be sure to smell next to the oor because LP gas is heavier
than air and will settle on the oor.
The gas valve on your unit is equipped with an ON/OFF knob. Use only your hand to turn the knob Never use
tools. If the knob will not push in or turn by hand, do not try to repair it. Call a qualied service technician. Force
or attempted repair may result in a re or explosion.

6GPac Users Information 7/07-2
The GPac air conditioner with gas heat is equipped with an automatic spark ignition system. There is no pilot.
In case of a safety shutdown on units with electronic temperature control, shut main disconnect OFF and then
back ON to reset ignition control. On units with an electro-mechanical thermostat, move the thermostat switch
to OFF and return the thermostat switch to HEAT. On initial start-up of the unit in the heating mode, a burn-off
of excess paint and oils remaining from the manufacturing process may cause some smoking and smell for 5-10
minutes.
Cooling Cycle
1. Set the fan switch to "Auto" and the system switch to "Off".
2. Move the cooling temperature on the wall thermostat to a point higher than the room temperature. Move
the heating temperature to a temperature that is lower than the room temperature.
3. Set the thermostats system switch to "Cool" or "Auto" position. Nothing should operate at this time.
4. Set the time delay in the control box to three minutes. Note that time delay is an option on some GPac
units and may not be on your air conditioner.
5. Remove the cover plate from the thermostat. Slowly lower the thermostat cooling temperature. Once the
indoor fan turns on, allow approximately three minutes for the compressor and outdoor fan to start.
For units equipped with the low ambient control, note that the outdoor fan may not come on immediately, because
it is cycled by refrigerant pressures. Some units have a time delay module which prevents the compressor from
restarting immediately after interruption of power. See Cooling Mode section of the Installation Instructions for
details on the operation of the low ambient control and the time delay.
Heating Cycle
1. Turn off electrical power to the unit.
2. Set thermostat to its lowest setting.
3. Remove heat section access panel.
4. Turn knob on the gas control valve to ON. Do not force. Never light the burner with a match or torch.
Figure 2. Gas Control Valve
5. Replace heat section access panel.
6. Turn on electrical power to the unit.
7. Set room thermostat to desired temperature.
8. On a call for heating, the air switch closes, initiating a 30 second pre-purge.
9. At end of pre-purge period, the Spark and Gas valve is energized for up to a 5 second ignition trial. Gas
valve will open.
10. Burners ignite and carryover.
ON SWITCH

7GPac Users Information 7/07-2
11. Flame is detected by the ame sensor and control operates in a steady state condition.
12. Unit continues to heat until the room temperature set point is met.
If ignition is not achieved within 5 seconds, the gas valve is shut off, the inducer keeps running for an
interpurge period of 60 seconds and additional ignition trials follow the specied sequence. If after three trials
for ignition have occurred without proper ignition and ame detection, the control is locked out.
Control may be brought out of lockout by cycling the thermostat or turning the main power off for at least 5
seconds. Control will also attempt another ignition sequence after a one hour after a lock out occurrence.
1. If ame is lost once it has been established, the control will shut off the gas supply within 0.8 seconds and
enter the interpurge period. Control will initiate up to 3 additional trials per normal operation sequence.
2. If ame sensor indicates presence of ame during purge period, when no ame should be present, the
inducer will remain energized but the gas valve will not be energized until the cause of the “false ame” is
removed.
3. If the air pressure switch is closed when the inducer is energized or does not close after the inducer is
energized, the control will wait one minute for the air switch to open or close and then lock out.
4. If the control detects power to the gas valve when it should be off, or if no power when it should be on, the
control will go into lock out with all outputs off.
LED Flash Code
On- Steady Control operation normal
1 Flash Open pressure switch, limit switch or ame rollout switch
2 Flashes Pressure switch stuck closed
3 Flashes Ignition/ame sensor failure
4 ashes Repeated ame losses
5 ashes Internal control fault
6 ashes Repeated pressure switch losses
Maintenance
WARNING
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in dangerous operation, serious
injury, death or property damage.
Improper servicing could result in dangerous operation, serious injury, death or property
damage.
• Before servicing, disconnect all electrical power to the AVG unit.
• When servicing controls, label all wires prior to disconnecting. Reconnect all wires
correctly.
• Verify proper operation after servicing.

8GPac Users Information 7/07-2
AVERTISSEMENT
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD
Ne pas suivre les AVERTISSEMENTS de sécurité à la lettre peut entraîner un
fonctionnement dangereux, des blessures graves ou mortelles ou des dégâts matériels.
Une intervention inappropriée peut entraîner un fonctionnement dangereux, des blessures
graves ou mortelles ou des dégâts matériels.
• Avant d'intervenir, débranchez toute alimentation électrique vers l'unité AVG.
• Quand vous intervenez sur des commandes, étiquetez les ls avant de les débrancher,
an de les rebrancher tous correctement.
• Vériez le bon fonctionnement après une intervention.
Maintenance – Burner and Vent Outlet.
Marvair®strongly recommends that the unit be serviced a minimum of twice a year – once prior to the heating
season and once prior to the cooling season. At this time the lters, evaporator coil, condenser coil, the cabinet,
and condensate drains, the burner ame, the burner and the combustion air inlet and outlet should be serviced
and inspected as described below. Also at this time, the unit should be operated in the cooling and heating cycles
as described in Chapter 2, Start-Up. In addition to this seasonal check-out, the unit should be maintained as
follows:
Air Filter
Replace the air lter whenever it is visibly dirty. Note: Filters must be U.L.C approved or equivalent for use in
Canada.
Indoor Coil
If the coil becomes clogged or dirty, it may be cleaned by careful vacuuming or with a commercial evaporator
cleaning spray. DO NOT use a solvent containing bleach, acetone, or ammable substances. Turn power OFF
before cleaning. Be careful not to wet any of the electrical components. Be sure the unit has dried before
restarting.
Outdoor Coil
Periodically inspect the outdoor coil and the cabinet air reliefs for dirt or obstructions. Remove foreign objects
such as leaves, paper, etc.
If the coil is dirty, it may be washed off with a commercial solvent intended for this purpose. TURN OFF POWER
BEFORE CLEANING! Be sure that all electrical components are thoroughly dry before restoring power.
Cabinet
The cabinet may be cleaned with a sponge and warm, soapy water or a mild detergent. Do not use bleach,
abrasive chemicals or harmful solvents.
WARNING
CARBON MONOXIDE POISONING
A crack or hole in the heat exchanger could result in carbon monoxide gas which can
cause death or serious injury. Carbon monoxide is colorless and odorless. Signs that
there is a hole or crack in the heat exchanger include:
1. Headaches, Nausea or Dizziness.
2. Excessive humidity or heavily frosted windows or a clammy feeling in the structure.

9GPac Users Information 7/07-2
AVERTISSEMENT
EMPOISONNEMENT AU MONOXYDE DE CARBONE
Une ssure ou un trou dans l'échangeur thermique peut laisser échapper du gaz avec
monoxyde de carbone qui peut causer des troubles sévères ou mortels. Le monoxyde
de carbone est sans couleur et sans odeur. Les signes pouvant indiquer un problème
d'étanchéité sur l'échangeur thermique sont :
1. Maux de tête, nausées ou vertiges.
2. Humidité excessive ou fenêtres très givrées, ou viscosité sur la structure.
Drains
Regularly check the primary and secondary condensate drains. The secondary drain has a stand pipe.An obstruction
will force water to dump into the middle of the unit and drain out the sides of the GPac air conditioner, causing
discoloration of the side panels. If discoloration is noted, service the drains.
If a commercial drain solvent is used, ush out the drain pan and system with plenty of fresh water to prevent
corrosion.
Lubrication
Oiling of the condenser fan motor or the evaporator blower motor is not recommended.
Burner Flame
Inspect the burner ame periodically during the heating season to ensure proper burner operation.
Light the burners and allow the unit to operate for a few minutes to establish normal burning conditions. Look
at the ames on the burners. They should be predominately blue in color and robust in appearance. The ame
should be in the middle of the heat exchanger tubes. Check to see that all the burners are lit and that the ame
does not impinge on the sides of the heat exchanger. Observe the ame. There should be little or no change
to in the shape or size of the ame. Changes in the shape and size of the ame may indicate a leak in the heat
exchanger. See Figure 3.
Figure 3. Burner Flame
Distorted ame or yellow tips of the natural gas ame or long yellow tips on LP gas ames may be caused by
one or more of the following:
1. Lint or dirt inside the burner or burner ports,
2. lint or dirt at the air inlet between the burner and the manifold pipe, or any obstruction over the burner
plate.
If any of these are visible, turn the unit off and use a vacuum or a soft brush to clean the affected areas.
Burner
Inspect the burners at least once a year, prior to each heating season, for rust, water damage or dust accumulation.
The burner should be replaced if rust or water damage is present. Dust should be removed if present.

10 GPac Users Information 7/07-2
Combustion Air Inlet and Outlet
Visually inspect both the combustion air inlet and gas outlet at least once a year, prior to the heating season, to
make sure that there is no build up of soot, debris or dirt. If required, clean to maintain adequate air ow.
Service reminder!
Always call a qualied service technician if the unit is not working properly. Before calling, check the following
to be sure service is required:
1. Be sure the electrical disconnect is ON.
2. Check room thermostat for proper setting.
3. Replace any blown fuses or reset circuit breakers.
4. Gas valve must be ON.
5. Air lters should not be plugged, limiting air ow.
6. Make sure all service panels are in place.
Venting of the Furnace
The AVG wall mounted air conditioner with gas heat furnace is a Category I furnace, i.e., a central furnace
which operates with a non-positive vent static pressure and with a ue loss not less than 17%. The furnace is fan
assisted. The installation of the furnace vent must be in accordance with the National Fuel Gas Code (NFGC),
ANSI Z223.1-2000/NFPA 54-2002, and /or Section 7 and Appendix C of the CSA B149.1-00, National Standard
of Canada, Natural Gas & Propane Installation Code; the local building codes; furnace and vent manufacturer’s
instructions.
WARNING
CARBON MONOXIDE POISONING, FIRE, AND EXPLOSION HAZARD
Failure to properly vent this furnace could result in death, personal injury and/or property
damage. Read and follow all the instructions in this section.
WARNING
DANGER D'EMPOISONNEMENT AU MONOXYDE DE CARBONE,
D'INCENDIE OU D'EXPLOSION
Une mauvaise ventilation de cette chaudière peut entraîner blessures graves ou mortelles
et/ou dégâts matériels. Lisez et respectez toutes les instructions dans cette section.
Clearances
Maintain 18" clearance between the vent hood and anything that would restrict or impede air ow from the hood.
The intake of the combustion air is thru louvers located on the side of the AVG wall mounted air conditioner
with gas heat furnace. Maintain 19" clearance between the louvers and anything that would restrict or impede
air ow into the louvers.

11 GPac Users Information 7/07-2
Parts List
MAJOR PURCHASED PARTS AVG42AC AVG48AC AVG60AC
Compressor, Scroll
ACA 10052 10202 10096
ACC 10093 10203 10097
ACD 10094 10204 10098
Capacitor, Scroll Compressor 50322 50294 50315 (2)
55 / 370 60 / 440 40 / 370
Refrigerant R22 (Oz) 60 Hz 100 110 107
Sound Blanket, Compressor 20017 20038 20038
Crankcase Heater, Compressor n/a 70044 70044
Evaporator Coil
60340 60340 60061
3CZ1404D- 3CZ1404D- 3CY1404D-
18 x 36 18 x 36 18 x 36
Indoor Cap Tube - Cooling n/a 80660 n/a
n/a .070 x 70 (4) n/a
Strainer (.378/.382 by Four .127/.131) n/a 80042 n/a
Strainer (.378/.382 by Three .114/.118) n/a n/a n/a
Strainer (.378/.382 by Two .127/.131) n/a n/a n/a
Cap Tube / Strainer Assembly (Alternate) n/a 20297 n/a
Distributor - Indoor 20116 n/a 20033 (9)
Orice - Cooling 20093 (.072) n/a 20078 (.088)
Condenser Coil
60350 60345 60345
3CZ1402D- 3CY1303D- 3CY1303D-
28 x36 28 x 36 28 x 36
Filter Drier 70370 70370 70389
Indoor Motor (HP/RPM) 40099 40099 40046
1/2 1075 1/2 1075 3/4 1120
Capacitor, Indoor 50360 50360 50360
Blower, L.H. 30090 30090 30090
Blower, R.H. 30092 30092 30092
Blower Wheel / Housing 10-8 DD 10-8 DD 10-8 DD
Outdoor Motor (HP/RPM) 40098 40098 40098
1/3 825 1/3 825 1/3 825
Capacitor, Outdoor 50240 50240 50240
Fan Blade (Clockwise Rotation) 30135 30135 30135
T2404-20 T2404-20 T2404-20
High Pressure Control (400 Open, 300 Close) 70080 70080 70080
Low Pressure Control (35 Open, 60 Close) 70050 70050 70050
Filter (2" Thick) 81257 (2) 81257 (2) 81257 (2)
18 x 24 18 x 24 18 x 24
Motor, Economizer (EPA) 40101 40101 40101
Enthalpy Control, H205A (EC) 70230 70230 70230
Mixed Air Relay (MAR) 50164 50164 50164
Mixed Air Sensor (MAS) 70229 70229 70229
GreenWheel Blower, Flanged, 400 CFM 50780 50780 50780
Energy Recovery Wheel 01226 01226 01226
Motor, GreenWheel Drive 40007 40007 40007
Fan Speed Controller (230 Volt) 70049 70049 70049
Belting, 3/16" Round Urethane P/80390 P/80390 P/80390
Contactor, Compressor, 30 Amp ACA 50020 n/a n/a
Contactor, Compressor, 40 Amp ACA n/a 50030 50030
Contactor, Compressor, 30 Amp ACC/ACD 50040 50040 50040
Circuit Breaker, 2 Pole, 60 Amp ACA 70178 70178 70178
Circuit Breaker, 3 Pole, 60 Amp ACC 70183 70183 70183
Circuit Breaker, 3 Pole, 40 Amp ACD 70299 70299 70299
Fan Blower Control (BTR) 50419 50419 50419
Lockout Relay (LOR) 50214 50214 50214
Clip for Low Vibration 01257 01257 01257
Relay, Outdoor Fan Motor (OFR) 50205 50205 50205
Relay, B Damper 50420 50420 50420
Low Voltage Transformer (50 VA) 50199 50199 50199
Transformer (460 to 230 Volts) 50147 50147 50147
1.5 KVA 1.5 KVA 1.5 KVA
Transformer (460 to 230 Volts), GreenWheel P/50007 P/50007 P/50007
2.0 KVA 2.0 KVA 2.0 KVA
Duct Furnace Heat Module: 45,000 Btu/Hr n/a n/a n/a
Duct Furnace Heat Module: 67,500 Btu/Hr n/a n/a n/a
Duct Furnace Heat Module: 90,000 Btu/Hr n/a n/a n/a
Duct Furnace Heat Module: 75,000 Btu/Hr 50413
Duct Furnace Heat Module: 100,000 Btu/Hr 50414
Duct Furnace Heat Module: 125,000 Btu/Hr 50415

12 GPac Users Information 7/07-2
Parts List (cont'd)
MAJOR PURCHASED PARTS AVG42AC AVG48AC AVG60AC
Direct Spark Ignition Control, 24 VAC, 250 ma 50418
Gas Valve, 2 Stage (3.5/1.2" WC High/Low) 20354
Induced Draft Blower (230 v) n/a n/a n/a
Induced Draft Blower (460 v) n/a n/a n/a
Induced Draft Blower, 3000 RPM, 0.9 A, 230 v 30064
Induced Draft Blower (460 v)
Pressure Switch, Low (0.36" WC PR) 70377
Pressure Switch, High (1.1" WC PF) 70373
Flame Rollout Switch, L270
Spark Igniter
Flame Sensor
In-Shot Burner (2.5 x 4.5)
Limit Control, High (45,000 Btu/Hr) n/a n/a n/a
Limit Control, High (67,500 Btu/Hr) n/a n/a n/a
Limit Control, High (90,000 Btu/Hr) n/a n/a n/a
Limit Control, High (75,000 Btu/Hr) 70372
Limit Control, High (100,000 Btu/Hr) 70372
Limit Control, High (125,000 Btu/Hr) 70372
Limit Switch, High (45,000 Btu/Hr) n/a n/a n/a
Limit Switch, High (67,500 Btu/Hr) n/a n/a n/a
Limit Switch, High (90,000 Btu/Hr) n/a n/a n/a
Limit Switch, High (75,000 Btu/Hr)
Limit Switch, High (100,000 Btu/Hr)
Limit Switch, High (125,000 Btu/Hr)
Suppression Ignition Cable
Nox Screen
Gas Orice, Natural Gas (Standard) n/a n/a n/a
Gas Orice, Propane (Standard) n/a n/a n/a
Gas Orice, Natural Gas (2.30 mm Standard) 20355
Gas Orice, Propane (1.50 mm Standard) 20356
Relay, Heat/Blower, 460 Volt Only 50190 50190 50190
Relay, Condenser Fan, 460 Volt Only 50190 50190 50190

13 GPac Users Information 7/07-2
Model AVG Air Conditioner with Gas Heat Warranty Policy
If any part of your Marvair® unit fails because of a manufacturing defect within fteen months from the date
of original shipment from Marvair or within twelve months from the date of original start-up, whichever is the
earlier date, Marvair will furnish without charge, EXW Cordele, Georgia, the required replacement part. Any
transportation, related service labor, diagnosis calls, lter, driers, and refrigerant are not included. The owner
must provide proof of the date of the original start-up. The owner’s registration card led with Marvair, the
contractor’s invoice, the certicate of occupancy or similar document are examples of proof of the date of the
original start-up.
In addition, if the hermetic compressor fails because of a manufacturing defect within sixty months from the date
of original shipment from Marvair®, Marvair will furnish without charge, EXW Cordele, Georgia, the required
replacement part. Any related service labor, diagnosis calls, lter, driers and refrigerant are not included. Marvair
will pay for non-priority shipping costs of the compressor during the rst twelve months of the warranty period.
After the rst twelve months of the warranty period, all costs of shipment and risk of loss during the shipment
of the compressor shall be the responsibility of the owner.
In addition, if the heat exchanger in the gas furnace fails because of a manufacturing defect within 120 months
from the date of original shipment from Marvair®, Marvair will furnish without charge, EXW Cordele, Georgia,
the required replacement part. Any related service labor and diagnosis calls are not included.
The owner of the product may ship the allegedly defective or malfunctioning product or part to Marvair®, at
such owner’s expense, and Marvair will diagnose the defect and, if the defect is covered under this warranty,
Marvair will honor its warranty and furnish the required replacement part. All costs for shipment and risk of loss
during shipment of the product to Marvair and back to the owner shall be the responsibility and liability of the
owner. Upon written request by an owner, Marvair may arrange for remote diagnosis of the allegedly defective
or malfunctioning product or part but all costs for transportation, lodging and related expenses with regard to
such diagnostic services shall be the responsibility and liability of the owner.
An owner requesting performance under this Warranty shall provide reasonable access to the allegedly defective
or malfunctioning product or part to Marvair®and its authorized agents and employees.
This warranty applies only to products purchased and retained for use within the U.S.A., Canada, and Mexico. This
warranty does not cover damage caused by improper installation, misuse of equipment or negligent servicing.
THIS WARRANTY CONSTITUTES THE EXCLUSIVE REMEDY OF ANY PURCHASER OF A MARVAIR®
HEAT PUMP OR AIR CONDITIONER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY
OR FITNESS FOR USE, TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT SHALL ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR USE EXCEED THE TERMS OF THE
APPLICABLE WARRANTY STATED ABOVE AND MARVAIR SHALL HAVE NO OTHER OBLIGATION
OR LIABILITY. IN NO EVENT SHALL MARVAIR BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES OR MONETARY DAMAGES.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER
RIGHTS WHICH VARY FROM STATE-TO-STATE. Some states do not allow limitations or exclusions, so
the above limitations and exclusions may not apply to you.
Rev. 6/06