Amana PGB**C Installation Instructions Manual Download Page 16

16

XII. Maintenance

WARNING

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

Important Note: Touching the ignitor body with bare
fingers, 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 combustion 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 nec-
essary because of local conditions and usage.

Dirty throwaway filters should be discarded and re-
placed 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 espe-
cially 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 neces-
sary 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
lubricated. 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 coat-
ing, created by the fuel or combustion air supply, can be
removed by carefully cleaning the flame sensor with
emery cloth or steel wool. (Figure 14)

NOTE: After cleaning, the microamp signal should be in
the range listed in Specification Sheet.

Burner 

Assembly

Pilot
Tube

Flame Sensor

Ignitor

Figure 14

Ignitor and Flame Sensor

Flue Passages (Qualified Servicer Only)

At the start of each heating session, inspect and, if
necessary, clean the unit flue passage

Summary of Contents for PGB**C

Page 1: ...afety practices follow them The precautions listed in this Installation Manual should not supersede existing practices but should be considered as supplemental information ATTENTION INSTALLING PERSONN...

Page 2: ...shut off turn off the manual gas control valve to the unit before shut ting off the electrical supply WARNING To prevent death personal injury or prop erty damage do not use this unit if any part of t...

Page 3: ...rn air entering the unit must be between 50 F and 100 F Provisions must be made for adequate combustion and ventilation air in accordance with Section 5 3 Air for Combustion and Ventilation of the Nat...

Page 4: ...ht bill or indemnity in lieu thereof c Original invoice or certified copy thereof showing trade and other discounts or reductions d Copy of the inspection report issued by carrier representative at th...

Page 5: ...propane gas and for altitude adjust ments Piping IMPORTANT NOTE To avoid possible unsatisfactory operation or equipment damage due to under firing of equipment do not undersize the natural propane ga...

Page 6: ...ring which may result in heat failure This unit and its shut off valve must be disconnected from the gas supply dur ing any pressure testing of that system at test pressures in excess of 1 2 PSIG 3 48...

Page 7: ...er gas pressure depends on three main factors 1 Vaporization rate which depends on a tempera ture of the liquid and b wetted surface area of the container or containers 2 Proper pressure regulation 3...

Page 8: ...re 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 ai...

Page 9: ...sformer primary lead and induced draft blower mo tor leads as shown on the unit wiring diagram Heat Anticipator Setting The heat anticipator in the room thermostat must be correctly adjusted to obtain...

Page 10: ...duct should be provided with an access panel This access should be large enough to inspect the air chamber downstream from the heat exchanger for any smoke or combustion gas leaks A cover should be ti...

Page 11: ...ocated and other spaces of the building Turn on clothes dryers and any appliance not connected to the common venting system Turn on any exhaust fans such as range hoods and bathroom exhausts so they w...

Page 12: ...ll Out Protector Figure 9 Rollout Protection IX Heating Sequence of Operations Normal Sequence of Operation Heating 1 Thermostat calls for heat The combustion blower is immediately energized 2 The pre...

Page 13: ...Figure 12 With Power And Gas On 2 Put unit into heating cycle and turn on all other gas consuming appliances Figure 12 Measuring Inlet Gas Pressure Alternate Method Secondary Limit Control On the PGB...

Page 14: ...per cubic foot as deter mined by Step 2 then Input 1000 x 3600 0 34 106 000 BTU per Hour NOTE BTU content of the gas should be obtained from the gas supplier This measured input must not be greater t...

Page 15: ...ishing phases of construction on a new struc ture This type of use may result in pre mature failure of the unit due to extremely low return air temperatures and expo sure to very dirty atmospheres To...

Page 16: ...d 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 shou...

Page 17: ...sonal injury due to electrical shock do not remove any in ternal compartment covers or attempt any adjustment Contact a qualified ser vicer at once if an abnormal flame ap pearance should develop At l...

Page 18: ...ng Flame Roll Out Switch Blower Motor Gas Orifice Blower Wheel Heat Exchanger Burner High Limit Switch Compressor Secondary Limit Condenser Coil Ignitor Flame Sensor Condenser Fan Blade Induced Draft...

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