Lennox 12GCS - Manuals

3DJH Parts Arrangement CONDENSER COIL BLOWER COMPRESSOR CONDENSER FAN COMBUSTION AIR BLOWER GAS VALVE GAS MANIFOLD BURNER BOX HEAT EXCHANGER ASSEMBLY BLOWER MOTOR CONTROL BOX SECTION PRESSURE SWITCH FIGURE 1 Any additions, changes, or conversions required in order for the appliance to satisfactorily...

3DJH Heating Start-Up FOR YOUR SAFETY READ BEFORE LIGHTING BEFORE LIGHTING, smell all around the appliance areafor gas. Be sure to smell next to the floor because some gasis heavier than air and will settle on the floor. Electric shock hazard. Can cause injuryor death. Do not use this furnace if any...

3DJH To Turn Off Gas To Unit 1 - Set thermostat to lowest setting. 2 - Turn off all electrical power to unit if service is to be per- formed. 3 - Remove burner compartment access panel. 4 - Honeywell VR8205 Gas Valves - Turn knob on gas valve clockwise to OFF. Do not force. Robertshaw 7200 Gas Valve...