Amana PGA**C Installation Instructions Manual Download Page 13

13

XII. Maintenance

WARNING

To avoid death or personal injury due to
electrical shock, disconnect electrical
power before performing any maintenance.

Important Note: Touching the ignitor body with bare fin-
gers, rough handling, or vibration could result in early ignitor
failure. Only a qualified servicer should ever handle the
ignitor.

Have the gas  heating section of the unit checked at least
once a year before the heating season begins, to be sure
that the combustion air inlet and flue outlet hoods are not
blocked by debris, which would prevent adequate combus-
tion air and a properly operating vent system.

REPLACING OR CLEANING FILTER
A return air filter is not supplied with this unit; however, there
must be a means of filtering all of the return air. The filter(s)
may be located in the return air duct(s), return air filter
grille(s). Consult with your installing dealer for the actual
location of the return air filter(s) for your unit.

Dirty filters are the most common cause of inadequate
heating or cooling performance. Filter inspection should be
made at least every two months; more often if necessary
because of local conditions and usage.

Dirty throwaway filters should be discarded and replaced
with a new, clean filter. Dirty permanent filters should be
washed with water, thoroughly dried and sprayed with a filter
adhesive before being reinstalled. (Filter adhesives may be
found at many hardware stores.) Permanent filters should
last several years. However, should one become torn or
uncleanable, it should be replaced.

MAINTAINING CABINET FINISH
Use a fine grade automotive wax on the cabinet finish to
maintain the finish’s original high luster. This is especially
important in area’s with high ultraviolet radiation.

CLEAN OUTSIDE COIL  (QUALIFIED SERVICER ONLY)
The coil with the outside air flowing over it should be
inspected annually and cleaned as frequently as necessary
to keep the finned areas free of lint, hair and debris.

CONDENSER, EVAPORATOR, AND  INDUCED DRAFT
MOTORS
Bearings on the air circulating blower motor, condenser
motor and the combustion fan motor are permanently lubri-
cated. No additional oiling is required.

FLAME SENSOR (QUALIFIED SERVICER ONLY)
A drop in the flame sensing signal can be caused by a nearly
invisible coating on the flame sensor. This coating, created
by the fuel or combustion air supply, can be removed by
carefully cleaning the flame sensor with emery cloth or steel
wool (Figure 16).

2. Circulating Air Blower will continue to run for 60, 90, 120

or 150 seconds, depending on the setting.

NOTE: If necessary, adjust fan OFF delay settings to obtain
satisfactory comfort level.

CAUTION

This unit must not be used as a
“construction heater” during the finishing
phases of construction on a new structure.
This type of use may result in premature
failure of the unit due to extremely low
return air temperatures and exposure to
very dirty atmospheres.

TO TURN OFF UNIT

1. Set the thermostat to lowest setting.

2. Turn off the electrical power supply to the unit.

3. Remove the heat exchanger door on the side of the unit

by removing screws.

4. Turn the gas control valve knob to the OFF position. Do

not force. See Figures 11 and 12.

5. Close manual gas shutoff valve external to the unit.

6. Replace the heat exchanger door on the unit.

7. If cooling and/or air circulation will be  desired, turn ON

the electrical power.

COOLING STARTUP
NOTE: Check all manual reset limit controls in heating
circuit if cooling mode does not operate.

COMPRESSOR PROTECTION DEVICES
The compressor includes components which are designed
to protect the compressor against abnormal operating con-
ditions.

WARNING

To avoid death or personal injury, always
disconnect electrical power before
inspecting or servicing the unit. All
compressor protection devices reset
automatically, energizing the contactor and
outdoor fan.

OPERATING INSTRUCTIONS (COOLING)
NOTE: Mechanical cooling cannot be reliably provided at
ambient temperatures below 50° F.

1. Turn on the electrical power supply to the unit.

2. Place the room thermostat selector switch in the COOL

position (or AUTO if available, and if automatic
changeover from cooling to heating is desired).

3. Set the room thermostat to the desired temperature.

Summary of Contents for PGA**C

Page 1: ...nslistedinthisInstallationManualshould not supersede existing practices but should be consid ered as supplemental information ATTENTION INSTALLING PERSONNEL PGA C PGB C and PGD C Single Package Gas El...

Page 2: ...on adjustments alterations service or maintenance when servicing or performingmaintenancetothisunitconsult this manual service manual qualified installer service agency or gas supplier WARNING This pr...

Page 3: ...tional Fuel Gas Code ANSI Z223 1 and National Standard of Canada CAN CGA 2 3 The heating and cooling capacities of the unit should be greaterthanorequaltothedesignheatingandcoolingloads of the area to...

Page 4: ...ALLATIONS ONLY IMPORTANT NOTE The gas electric units will naturally derate itself with altitude Do not attempt to increase the firing rate by changing orifices or increasing the manifold pressure This...

Page 5: ...on Installed Ahead Of Gas Valve Reduce coupling 1 2 x 1 8 with 1 8 pipe plug to measure line gas pressure Figure 2 Proper Piping Practice CHECKING THE GAS PIPING CAUTION To prevent personal injury or...

Page 6: ...edropinlinesbetweenregulators andbetween second stage regulator and the appliance Pipe size required will depend on length of pipe run and total load of all appliances Completeinformationregardingtank...

Page 7: ...igure 5 V Electrical Wiring LOCATING THE THERMOSTAT Thermostat should be mounted 5 feet above the floor on a vibration free inside wall in a room or a hallway that has good air circulation Movement of...

Page 8: ...WORK Duct systems and register sizes must be properly designed for the C F M and external static pressure rating of the unit Ductwork should be designed in accordance with the rec ommended methods of...

Page 9: ...n the return air duct s or return air filter grille s Filters installed external to the unit should be sized in accordance with their manufacturer recommendations A throwaway filter must be sized for...

Page 10: ...in or near the blower motors Duct covers must be removed before operating unit HEAT ANTICIPATOR SETTING The heat anticipator in the room thermostat must be cor rectlyadjustedtoobtainthepropernumberof...

Page 11: ...e external to the unit 11 Turn on the electrical power supply to the unit 12 Set the thermostat to desired setting GAS INPUT AND PRESSURES Gas supply pressure and manifold pressure with the burn ers o...

Page 12: ...or minus 0 3 inches water column from the specified pressure Any major changes in flow should be made by changing the size of the burner orifices The measured input rate to the furnace must not excee...

Page 13: ...air circulating blower motor condenser motor and the combustion fan motor are permanently lubri cated No additional oiling is required FLAME SENSOR QUALIFIED SERVICER ONLY A drop in the flame sensing...

Page 14: ...d blue dust may cause orange tips but must not be yellow The flames must extend directly outward from the burner without curling floating or lifting off Figure 17 Check the burner flames for 1 Good ad...

Page 15: ...vers Compressor Sound Blanket Horizontal Filter Kit Propane Gas Conversion Kit High Altitude Kit Standard on PGA C Table 4 Accessory List FUNCTIONAL PARTS Blower Housing Flame Roll Out Switch Blower M...

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