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    reversing valve neutral (2 Posts)

  • Del Del July 18, 2011 @ 7:49 PM
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    reversing valve neutral

    Hi-
      Just had to bypass a bad control on a 20 year old York heat pump to get it to work in A/C only mode......replaced the integrated thermostat etc.  Homeowners have a newer natural gas furnace so they don't need the heat pump.  Anyway, I have the reversing valve energized through O terminal but I wasn't sure where to complete the circuit.  I have the contactor energized through high pressure switch and Y and C off the furnace control board like usual.  Can I use the C on the furnace to complete the reversing valve circuit, or will that interfere with the contactor operation?  I'm pretty sure it won't, but I just want to be sure.  Thanks.

    -Mike
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  • Paul Fredricks Paul Fredricks July 19, 2011 @ 8:25 AM
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    .

    The "C" that runs the condenser is the one you would use, and I assume that's the one on the furnace.
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