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Thread: suction valve

  1. #1
    Join Date
    Feb 2007
    Posts
    25

    suction valve

    I'm working on a stand up commercial freezer that has a adjustable manual valve on the suction line that you need a allen wrench to adjust. is this a capacity control valve? This is a R-12 system

  2. #2
    Join Date
    Jul 2008
    Location
    NEW JERSEY
    Posts
    40
    Most likely a CPR valve to keep crankcase pressure down after unit comes out of defrost.Would only be a capacity(EPR) if you have multiple circuits.

  3. #3
    Join Date
    Oct 2003
    Location
    tidewater, va
    Posts
    2,081
    242

    This is most likely a crankcase pressure regulator as stated above.

    r404a

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