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Thread: Heat pump cold weather operation

  1. #1
    DIY Junior Member John in herndon's Avatar
    Join Date
    May 2007
    Location
    VA
    Posts
    25

    Default Heat pump cold weather operation

    Hello all,

    Heavy snow has come to the Washington area and my heat pump is icing up heavily. My question; should I set the system to use the Aux electric heat exclusively for the duration of the storm or can I allow the compressor to continue running even though the coils are heavily iced up?

    Thanks for any advice.

    John in Herndon (VA)

  2. #2
    DIY Senior Member SteveW's Avatar
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    Feb 2005
    Location
    Omaha, NE
    Posts
    1,042

    Default

    I was told by an HVAC tech not to let the heat pump run when the coils are covered with ice or snow, as this causes the refrigerant pressure to run higher than normal (and of course it won't be very efficient under those circumstances, either.)

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