Lennox G23 User Manual

PRODUCT LITERATURE

W1996 Lennox Industries Inc.
Dallas, Texas

503,517M
9/98
Supersedes 8/96



G23

SERIES

GAS FURNACE

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.

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

Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.

Litho U.S.A.

WARNING

WHAT TO DO IF YOU SMELL GAS:

D Do not try to light any appliance.
D Extinguish any open flames.
D Do not touch any electrical switch; do not use any

phone in your building.

D Immediately call your gas supplier from a neighbor's

phone. Follow the gas supplier's instructions.

D If you cannot reach your gas supplier, call the fire deĆ

partment.

G23 Parts Identification

VENT PIPE

CONNECTION

COMBUSTION AIR

BLOWER

IGNITION

CONTROL

UPPER ACCESS

PANEL

BURNERS

TOP CAP

DURALOK

EXCHANGER

ASSEMBLY

COMBUSTION AIR

(PRESSURE) SWITCH

TM

HEAT

PROVING

CABINET

VALVE

MANIFOLD

GAS

GAS

BLOWER

CONTROL BOARD

BLOWER ACCESS

PANEL

WARNING

Product contains fiberglass wool.

Disturbing the insulation in this product during
installation, maintenance, or repair will expose you
to fiberglass wool dust. 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.

Lennox Industries Inc.

P.O. Box 799900
Dallas, TX 75379-9900

FIGURE 1

BLOWER

CONTROL BOX

MOTOR

WARNING

Do not set thermostat below 60_F (16_C) in heating
mode. Setting thermostat below 60_F (16_C) reĆ
duces the number of heating cycles. Damage to the
unit may occur that is not covered by the warranty.

WARNING

If overheating occurs or if gas supply fails to shut
off, shut off the manual gas valve to the appliance
before shutting off electrical supply.

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