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Repair Parts List
The following repair parts are available through independent Lennox dealers. When ordering parts, include the complete fur-
nace model number listed on the CSA international. rating plate Ċ Example: G24−200. Refer to page 4 and 5 for parts identifi-
cation.
Cabinet Parts Electrical Parts Heating Parts Blower Parts
Front louver door (2) Transformer(s) Heat exchanger (2) Wheel (2)
Blower access panel (2) Ignition control board (2) Main burners Motor
Cabinet cap Door interlock (2) Main burner orifices Cut-off plate (2)
Cabinet top-rear Ignition cable (2) Gas manifold/burner
box assembly (2)
Shaft
Cabinet bottom-rear Ignitor (2) Gas valve (2) Motor pulley
Flue adapter (2) Flame sensor (2) Flue box (2) Wheel pulley
Roll-out switch (2) Combustion air blower (2) Belt
Primary limit (2) Flexible gas connector Bearing (2)
Pressure switch (2) Vibration isolators (4)
Blower timing control board Locating rods (2)
Accessory relay
Blower operation relays
Contactor
Combustion air blower
operation relays
G24−200 Start−up and Performance Check List
Job Name Job Number Date
Job Location City State/Province Installer
City State/Province
Unit Model No. Serial Number Serviceman
HEATING SECTION
Electrical Connections Tight? Supply Voltage
Blower Motor Amps Blower Motor Horsepower/Kw
Blower Motor Lubrication OK? Blower Shaft Lubrication OK?
Gas Piping Connections Tight & Leaks Tested?
Fuel Type: Natural Gas?
Furnace Btu (kw) Input Line Pressure w.c./Pa − Nat.
Regulator Pressure w.c./Pa −− Nat.
Connections Tight? Proper Draft?
Temperature Rise Filter Clean & Secure? Vent Clear?
THERMOSTAT
Calibrated? Heat Anticipator Properly Set? Level?