Lennox GCS20-060, GCS16-024, GCS16-048, GCS20R-048, GCS20-030 User Manual

See unit nameplate for manufacturer
and address.

504,558M
8/2002
Supersedes 2/2002

WARNING

GCS16−024, 030, 036, 048, 060
GCS20−024, 030, 036, 048, 060

GCS20R−024, 030, 036, 042, 048, 060

Improper installation, adjustment, alteration, ser
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser
vice must be performed by a qualified installer, ser
vice agency or the gas supplier

READ ALL INSTRUCTIONS IN THIS MANUAL

FBR113270

Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.

Installation and service must be per
formed by a qualified installer, ser
vice agency or the gas supplier.

AND RETAIN FOR FUTURE REFERENCE

If the information in this manual is not
followed exactly, a fire or explosion
may result causing property damage,
personal injury or loss of life.

Litho U.S.A.

WARNING

WHAT TO DO IF YOU SMELL GAS:

S Do not try to light any appliance.
S Extinguish any open flames.

S Do not touch any electrical switch; do not

use any phone in your building.

S Leave the building immediately.
S Immediately call your gas supplier from a

neighbor’s phone. Follow the gas suppli
er’s instructions.

S If you cannot reach your gas supplier, call

the fire department.

E2002

08/02

*2P0802*

504,558M

*P504558M*

GCS16, 20, and 20R Parts Arrangement

VENT CAP

COMBUSTION AIR INDUCER JUNCTION BOX

GAS

VALV E

BURNER

Safety

1− Keep unit area clear and free of combustible materi

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 contain
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

CONDENSER

COIL

COMPRESSOR

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.

Do not use this furnace if any part has been under
water. A flood−damaged furnace is extremely dan
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.

CAUTION

Label all wires prior to disconnection when servic
ing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.

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