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Heat Exchanger — To ensure dependable and efficient
heating operation, the heat exchanger should be checked by
a qualified maintenance person before each heating season,
and cleaned when necessary. This checkout should not be
attempted by anyone not having the required expertise and
equipment to properly do the job. Checking and/or cleaning
the heat exchanger involves removing the gas controls as-
sembly and the flue collector box cover and, when com-
pleted, reinstalling the gas controls assembly for proper op-
eration. Also, the flue collector box cover must be replaced
correctly so that a proper seal is maintained. Contact your
dealer for the required periodic maintenance.
Fans and Fan Motor — Periodically check the con-
dition of fan wheels and housings and fan-motor shaft
bearings. No lubrication of condenser- or evaporator-fan
bearings or motors is required or recommended.
Evaporator and Condenser Coils — Cleaning of
the coils should only be done by qualified service per-
sonnel. 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 refrigeration grade oil in
them and should rarely require additional oil. The service
person must be certain the proper oil level is maintained in
the compressor when it is installed and running.
Condenser Fan
Do not poke sticks, screwdrivers, or any other object
into revolving fan blades. Severe bodily injury may
result.
The fan must be kept free of all obstructions to en-
sure proper cooling. Contact your dealer for any required
service.
Fig. 2 — Gas Heating/Electric Cooling Unit
(Unit 48SS Shown)
BURNERS
GAS VALVE
FLUE HOOD
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