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G27M PARTS IDENTIFICATION
UPFLOW POSITION
DOWNFLOW POSITION
1
2
3
4
5
7
8
1
2
3
4
5
7
8
1 - COMBUSTION AIR
BLOWER
2 - PRESSURE SWITCHES
3 - GAS VALVE
4 - ROLLOUT SWITCH
(One on each side)
5 - BURNERS
6 - TWO-STAGE CONTROL
BOARD
7 - IGNITION CONTROL BOARD
8 - BLOWER
6
6
WARNING
Product contains fiberglass wool.Disturbing the
insulation in this product during installation,
maintenance, or repair will expose you to fiberĆ
glass wool. Breathing this may cause lung canĆ
cer. (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
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.
WARNING
Do not use this furnace if any part has been underĆ
water. Immediately call a qualified service techniĆ
cian to inspect the furnace and to replace any part
of the control system and any gas control which
has been under water.
CAUTION
Before attempting to perform any service or mainteĆ
nance, turn the electrical power to unit OFF at disconĆ
nect switch.
IMPORTANT
Any additions, changes, or conversions required in
order for the appliance to satisfactorily meet the apĆ
plication needs must be made by a Lennox service
technician using factory specified and approved
parts.
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