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GCS16, 20, and 20R Parts Arrangement
GAS
VALVE
COMPRESSOR
COMBUSTION AIR INDUCER JUNCTION BOX
BURNER
CONDENSER
COIL
VENT CAP
Safety
1− Keep unit area clear and free of combustible materiĆ
als, gasoline and other flammable vapors and liquids.
2− Inspect return air duct to ensure duct is sealed to
the unit and terminates outside the space containĆ
ing appliance.
WARNING
Product contains fiberglass wool.
Disturbing the insulation in this product during
installation, maintenance, or repair will expose you
to fiberglass wool. Breathing this may cause lung
cancer. (Fiberglass wool is known to the State of
California to cause cancer.)
Fiberglass wool may also cause respiratory, skin,
and eye irritation.
To reduce exposure to this substance or for further
information, consult material safety data sheets
available from address shown below, or contact
your supervisor.
P.O. Box 799900
Dallas, TX 75379−9900
WARNING
Do not use this furnace if any part has been under
water. A flood−damaged furnace is extremely danĆ
gerous. 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.
WARNING
Electric shock hazard. Can cause
injury or death. Before attempting to
perform any service or maintenance,
turn the electrical power to unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.
WARNING
Danger of explosion. Can cause injury
or product or property damage. Should
the gas supply fail to shut off or if
overheating occurs, shut off the gas
valve to the furnace before shutting off
the electrical supply.
WARNING
Danger of explosion and fire. Failure to
follow safety warnings exactly could
result in dangerous operation, serious
injury, death or property damage.
CAUTION
Label all wires prior to disconnection when servicĆ
ing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.