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Thread: Heil Heat pump question

  1. #1
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    Heil Heat pump question

    Heil 3 ton R22 Heat pump about 20 years old. Customer says the suction line was solid ice. I pull up and the compressor is banging like heck and the charge is low. Put about 2 pounds in it and the pressures are running perfect but the suction line is luke warm and the liquid line is barely warmer. How is this possible? What could be wrong?

    Btw, the customer said he put a used compressor in about a year ago and it's always made this banging sound but it "worked fine"

  2. #2
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    How did you determine it needed “about” 2#’s?

  3. #3
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    Thread Starter
    It was running 10 degrees on the suction side and according to the scale it took 2 lbs to raise it to 40 degrees

  4. #4
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    Quote Originally Posted by 2ndGenCummins View Post
    It was running 10 degrees on the suction side and according to the scale it took 2 lbs to raise it to 40 degrees
    Superheat, Subcooling, Delta T, indoor WB, Pressures, Line temps, air flow, and does the compressor size match unit size within reason.

  5. #5
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    Well this isn’t really the place for troubleshooting advice, you need pro status for that but you need to gather a lot more data instead of guessing.
    HP, LP, SC, SH just to start.
    "I think Quantum tunneling would work great... "

    "Call a technician for God's sake. Or we'll see you on the news or the Dark Side of the Moon."

  6. #6
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    Quote Originally Posted by 2ndGenCummins View Post
    It was running 10 degrees on the suction side and according to the scale it took 2 lbs to raise it to 40 degrees
    10° F?

    It should be a block of ice!

  7. #7
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    Quote Originally Posted by 2ndGenCummins View Post
    Heil 3 ton R22 Heat pump about 20 years old.

    Btw, the customer said he put a used compressor in about a year ago and it's always made this banging sound but it "worked fine"
    If you come back with more info, can you also provide the model and serial numbers of both the indoor and outdoor units, along with the model number of the compressor that was installed a year ago.

    Side Note: As you can tell from the comments before mine, the more information you provide, the more assistance that can be provided. Just know this is an "OPEN" forum, so only "general guidance" will be provided (site rules), as step by step trouble shooting is only allowed in the "LOCKED" Pro forums.

    Thanks, and we hope to hear back from you.
    Instead of learning the tricks of the trade, learn the trade.

  8. #8
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    Quote Originally Posted by BNME8EZ View Post
    Superheat, Subcooling, Delta T, indoor WB, Pressures, Line temps, air flow, and does the compressor size match unit size within reason.
    All good questions, without the answers we are all stumbling in the dark. Adding 2 pounds might in fact solve all the problems when the compressor throws a rod or bearing.
    “You don't get paid for the hour. You get paid for the value you bring to the hour.” Jim Rohn

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