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View Full Version : Converting electric wiring from heat pump to normal gas furnace set up


heinzf75
Nov 14, 2010, 05:52 PM
I have an older Olson gas furnace that is connected to an old Lennox heat pump. I do not use the heat pump any more for cooling or heat (I have it run in emergeny mode to only use the furnace). I would like to completely disconnect the heat pump panel and run a standard furnace set up , but not sure how to rewire the unit. My current setup for high voltage is as following:
Neutral goes to: fan motor, transformer and HP control panel
Hot goes to light green on limiter switch
Connection #1: HP control panel red + fan motor
Connection #2: Limiter switch red + HP control panel black + transformer

For low voltage
Connection #3: transformer to gas valve
Connection #4: gas valve black and white to HP control panel low voltage side
Connection #5: limiter switch black and white to HP control panel low voltage side
Connection #6 Thermostat wires to HP control panel low voltage side (I still have the old thermostat)

Any advice is greatly appreciated.

Hb