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FIGURE 2
G40UH(X) PARTS IDENTIFICATION
(HORIZONTAL POSITION)
BLOWER
ACCESS PANEL
HEAT EXCHANGER ASSEMBLY
BURNER
ASSEMBLY
COMBUSTION AIR
INDUCER
CONTROL
BOARD
PROVE
SWITCH
GAS VALVE
BURNER
ACCESS PANEL
BLOWER ASSEMBLY
PRIMARY LIMIT
SECONDARY LIMIT
FIGURE 3
G40UH(X) HEATING COMPONENTS
COMBUSTION AIR INDUCER
PROVE SWITCH
PRIMARY LIMIT
PRIMARY LIMIT SHIELD
GAS VALVE
ROLLOUT SWITCHES*
MANIFOLD/BURNER
ASSEMBLY
NO
x
Insert
(NO
x
Units Only)
HEAT EXCHANGER
FLUE COLLECTOR BOX
*135 and 155 kBtuh units only −−
Flame rollout switches are located
on brackets on the inner sides (one
on the left and one on the right) of
the burner box.
Air Deflector
G40UH−48C−135,
G40UH−36C−110,
G40UH−60D−155 &
G40UH−60C−110−1,
−2, −3 Units Only
