Lennox GCS20R-036 - Manuals

Page 1 GCS16, 20, and 20R Parts Arrangement GAS VALVE COMPRESSOR COMBUSTION AIR INDUCER JUNCTION BOX BURNER CONDENSER COIL VENT CAP Safety 1− Keep unit area clear and free of combustible materi als, gasoline and other flammable vapors and liquids. 2− Inspect return air duct to ensure duct is sealed ...

Page 2 WARNING Danger of electrical shock, explosionand fire. Improper servicing couldresult in dangerous operation, seriousinujry, death or property damage. Unit Operation FOR YOUR SAFETY READ BEFORE LIGHTING BEFORE LIGHTING smell all around the furnace area forgas. Be sure to smell next to the flo...

Page 3 B−To Turn Off Gas To Unit 1− If using electromechanical thermostat, set to the low est setting. 2− Turn off all electrical power to unit if service is to be performed. 3− Remove heat section access panel. 4 − Turn knob on Honeywell gas valve clockwise until it stops. Depress knob and turn clo...