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Thread: York 7.5 ton heat pump

  1. #1
    Join Date
    Aug 2021
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    York 7.5 ton heat pump

    York 7.5 ton heat pump, single compressor, single stage indoor fan. Y1 has LAT of 59˚ but when Y1 cycles compressor off the LAT is still low at 68˚. Could there by hot gas bypass? Coil evaporative cooling?

  2. #2
    Join Date
    Aug 2002
    Location
    Southold, NY
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    Not a lot of information to go on.
    SH
    SC
    TESP
    Readings.

    Your listed as a manufacture Rep?

  3. #3
    Join Date
    Aug 2021
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    Thread Starter
    Yes I'm a rep. I do problem solving for design engineer when techs and engineers can't figure stuff out. This application ended up being a single circuit 7.5ton CU serving two TXVs on two evap coils. I've never seen that before and I doubt York intended for that application. If the TXVs have the same operation it might not matter, but there's a solenoid that shuts down one of the circuits.

    I'm not a contractor so I don't pull refrig data, I review the applications and support expert witnesses when issues are legal. This issue is not in litigation.

  4. #4
    Join Date
    Aug 2002
    Location
    Southold, NY
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    You “Don’t” pull refrigerant just your a factory rep?

    Without the proper facts how can you support anyone?

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