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    visioninc's Avatar
    visioninc Posts: 1, Reputation: 1
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    #1

    Jul 18, 2008, 07:58 PM
    Freon levels
    If the outside temp is 90 and inside is 78 what should my high and low pressures read with r-22?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Jul 18, 2008, 08:41 PM
    If your trying to assess performance, the best way is to measure the temperature drop across the evaporator. It should be between 15 and 20 degrees depending on the humidity of the incoming air.
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