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  1. #1
    Join Date
    Jan 2019
    Posts
    1
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    Trane XR17/TAM7 air handler max speed on defrost/aux heat....

    Hey guys, I had this system installed 5 years ago..

    Went with the XR17 thinking it would be more comfortable with the 2 stage outdoor unit..

    Either way, I have an issue with the air handler running at jet engine speeds when the unit is in defrost or when it is calling for aux heat.. Is this normal operation for this setup? I've went over everything and it all seems to be setup correctly.

    It reduces the comfort of the system since it is blasting tempered defrost air in the room...

    Thanks for your response.

  2. #2
    Join Date
    Jul 2013
    Location
    Richmond, VA
    Posts
    4,364
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    It depends on the size heater kit you have and what the DIP switches for heating are set at.

  3. Likes lions_lair liked this post
  4. #3
    Join Date
    Dec 2007
    Posts
    8,212
    Post Likes
    If it is set up properly, IF, then most likely your duct work is too small/unit is oversized.
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

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