Lennox G40UH Series User Manual

Page 3
G40UH(X) Parts Arrangement
FIGURE 1
Flue Transition
Combustion Air Inducer
Combustion Air
Orifice
Combustion Air
Pressure Switch
Flue Collector Box
Heat Exchanger
Flame Sensor
Gas Valve
Burners
Igniter
NO
x
Insert
Primary Limit
Blower Assembly
Capacitor
Door Interlock Switch
Integrated Ignition
Control Board
Control Transformer
Gasket
Flue Box Gasket
Flame Rollout Switches*
Flame Rollout Bracket
Gas Orifices
Igniter Bracket
Burner Bottom Shield
Limit Shield
Secondary Limit
(NO
x
Units Only)
Air Deflector
G40UH−48C−135,
G40UH−60C−110, &
G40UH−60D−155
Units Only
*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.

Lennox G40UH Series Specifications

General

Brand	Lennox
Model	G40UH Series
Category	Furnace
Language	English