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Thread: HZ322 Panel and Emergency Heat

  1. 01-08-2012, 06:35 PM #1
    DavidPJ
    DavidPJ is offline Regular Guest
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    HZ322 Panel and Emergency Heat

    Our Trane air handler has a HZ322 zone panel installed on it. How does the "emergency heat" button operate? Does it turn on auxiliary heat permanently or just for 1 heating cycle? Does it shutoff the Trane heat pump compressor? Just looking for an explanation for what this button does and if I will ever have a need to use it. Thanks.
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  3. 01-08-2012, 09:20 PM #2
    NCHeat
    NCHeat is offline Professional Member*
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    This is a question for your installer. It depends on how the units and board are wired.
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  4. 01-08-2012, 09:45 PM #3
    beenthere
    beenthere is offline God Speed, Jim. We'll miss you - 2-26-23
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    When set to emergency heat. it only runs the aux heat. The heat pump won't operate.
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  5. 01-09-2012, 06:54 AM #4
    DavidPJ
    DavidPJ is offline Regular Guest
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    Thanks.

    The installation was done 4 years ago and the contractor has gone out of business.
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  6. 01-09-2012, 05:46 PM #5
    catmanacman
    catmanacman is offline Professional Member*
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    if the l wire is hooked up properly all you have to do is turn on emergency heat at the thermostat
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