The furnace components shown in
will help identify and locate various parts of the furnace. The component you need to
familiarize yourself with is the gas valve. You will use this to turn the furnace on and off. There are no user serviceable parts. All repairs
must be done by a licensed HVAC technician.
Specifications & illustrations subject to change without notice or incurring
obligations (04/18). O’Fallon, MO, © Nortek Global HVAC LLC 2018.
All Rights Reserved.
FURNACE COMPONENTS
Figure 3. M7RL & M7TL Furnace Components
Blower Assembly
Inducer Assembly
Single Stage
Gas Valve
Gas Manifold &
Burner Assembly
ON / OFF Switch
Control Board
Limit Switch
Inline Drain
Assembly
Igniter
Flame Sensor
Roll-Out Switch
Combustion Air Pipe
Exhaust Vent Pipe
Main Air Limit Switch
24V Transformer
Blower Assembly
Inducer Assembly
Two-Stage
Gas Valve
Gas Manifold &
Burner Assembly
Control Board
Limit Switch
Inline Drain
Assembly
Igniter
Flame Sensor
Roll-Out Switch
Combustion Air Pipe
Exhaust Vent Pipe
Main Air Limit Switch
24V Transformer
Blower Control Board
M7TL Series
M7RL Series
ON / OFF Switch
709415B
(Replaces 709415A)
