Lennox G43UF SERIES User's Information Manual page 2

G43UF Parts Identification
UPPER ACCESS
PANEL
COMBUSTION AIR
PROVING
(PRESSURE)
SWITCH
INTEGRATED
CONTROL
BLOWER ACCESS
PANEL
NOTE − This manual is the property of the homeowner
and must be left with the equipment user.
Notice to Homeowner
This furnace is equipped with safety devices that protect
you and your property. If one or more of these devices is
activated, furnace operation will stop. If your home is left
unattended for an extended period of time, equipment op-
eration must be checked periodically. If this is not possible,
the water supply to the house should be shut off and the
pipes should be drained. This will prevent problems associ-
ated with a NO HEAT condition (frozen pipes, etc.)
CAUTION
Before attempting to perform any service or mainte-
nance, turn the electrical power to unit OFF at the
disconnect switch.
TOP CAP
DURALOK
EXCHANGER
CONTROL BOX
FIGURE 1
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 Cal-
ifornia 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
Page 2
HEAT
TM
ASSEMBLY
BURNERS
CABINET
GAS VALVE
AND MANIFOLD
FLUE
COLLAR
COMBUSTION AIR
INDUCER
BLOWER
MOTOR
WARNING