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  1. 10-05-2011, 05:51 AM #3
    Mark Selby's Avatar
    Mark Selby
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    Re: Ideal head pressure using R22 on reverse cycle heating

    WOW sry for the typo.......What type of compressors are you running??If you get your head pressure to low you can increase the velocity thru the compressor can carry your oil out faster than you can get it back. There are a few other facts needed as well but as a rule of thumb on above freezing systems I set most 22 compressors by discharge temp. I look for a 75 degree climb above suction

    Sry about the dbl post [That's OK, sorted now, Brian]
    Last edited by Brian_UK; 10-05-2011 at 11:15 PM. Reason: Added note.
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