mcquaid heat pump trouble
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  1. #1

    mcquaid heat pump trouble

    Got called to no heat. upon arival the heat pump was tripped on high head pressure. first i noticed that the fan was burned out and replaced that. still tripped out if reset within minutes. I replaced my filters, coils are clean and have water flow (water supplied heat pump). i know my water temp is 78 degrees. what is happeneing is that the high side runs 400 psi+ if i let it run and low side runs from 70-80 psi. i pulled my charge and recharged to factory charge. the only thing I can think of is a restriction in the system most likely in the cap tubes. Just wondering if im missing anything.

  2. #2
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
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    13,828
    Mcquaid?

    Like chuck noris in
    Lonewolfe mcquaid?

  3. #3
    mcquay woops

  4. #4
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
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    Lol!!!

  5. #5
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
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    If you have 78* water and 400 psi?

    Your approach is too high.

    Fouled tubes.

    Does not sound like your heat xchanger is xchanging much heat.

  6. #6
    i have 78 inlet it drops 5-8 degrees outlet in heat mode for the couple minutes it runs

  7. #7
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
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    It drops???

  8. #8
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
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    The condenser should be giving up heat!!!

  9. #9
    yup

  10. #10
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
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    Leaving water should be close to sct!
    Satuated condnser temperature.

  11. #11
    this is when its running in heat mode

  12. #12
    Join Date
    Oct 2005
    Posts
    123
    Is it 410a....Is the return ducted? possible restriction on air side??? Fan going the right way. what was pressures after you recharged it

  13. #13
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
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    Sorry!
    I am always stuck in cooling!!!!!
    Lol

    Quote Originally Posted by hvac_man17 View Post
    this is when its running in heat mode

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