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  1. #1

    Compressor suction/discharge pressure versus ambient temp

    What should be the ideal compressor suction/discharge pressure range in PSIG if outside temperature is fluctuating between 28 - 36 degree celsius DBT.

    Equipment: Air cooled Packaged unit with 3 compressors X 5.5 TR each.

    Air cooled Condenser unit on roof in open space.

    Is there any chart online, on the relationship between above mentioned pressures and temperatures?

    Thanks

  2. #2
    Join Date
    Aug 2007
    Location
    Winter Haven, FL
    Posts
    4,284
    That would be a pressure-temperature chart, or pt

  3. #3
    Thanks for your response Joe.

    I was actually looking for a chart between OUTSIDE AMBIENT DBT and compressor suction/discharge pressure for air cooled compressors running on R22.

    Or maybe some rough idea of what to expect.

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,770
    Just learn how to take and use SH and SC, and that will tell you m ore then just pressure will.
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  5. #5
    Join Date
    Aug 2007
    Location
    Winter Haven, FL
    Posts
    4,284
    Everything factors in together. Indoor temp, outdoor temp, humidity outside and in, then there's coil efficiency and ductwork to factor in.

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