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  1. #1
    Join Date
    Apr 2005
    Posts
    22
    I bought two 4 ton 16 seer 410a systems, each for a different customer. Why does the heat pump have an internally equalize TXV and the strait A/C have an externally equalize TXV? Any coil with a pressure drop and or a distributer should have a external TXV...Correct??

  2. #2
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,915
    Never seen an internally equalized TXV on residential HVAC equipment. What brand?
    If more government is the answer, then it's a really stupid question.

  3. #3
    Join Date
    Apr 2004
    Posts
    7,680
    If you were adding a TXV, yes you would be correct, but I suspect the mfg considered the pressure drop when they set the TXV up in the first place to take that into account.

  4. #4
    Join Date
    Apr 2005
    Posts
    22
    The brand is Westinghouse/nordyne

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