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  1. #14
    Join Date
    Jan 2004
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    The pressure drop means that the pressure at the evap is 37PSIG higher then at the condenser where your taking the reading at.

    I would tap access fittings in at the evap, and see what you really have on both the liquid and suction line.

    What size is the unit.
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  2. #15
    Join Date
    Jun 2012
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    I wil do that, thanks. its a 5 ton unit.

  3. #16
    Join Date
    Jan 2004
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    A 5 ton should have no real problem working with a 7/8" line. Probably a capacity loss of 3 to 4000 BTUs though.
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