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Thread: Help!!!!!!!!!

  1. #1
    Join Date
    May 2007
    Posts
    10

    Smile Help!!!!!!!!!

    Im a hvac student and need to know, "what happens to the non-condensable gas once it is drawn into the sealed system?

  2. #2
    Join Date
    Aug 2004
    Location
    Kentucky, Michigan, Ohio, Arizona, Colorado, Nevada, and Califormia
    Posts
    318
    It won't condense. You'll have high head, fluctuating pressures, loos of capacity, it may freeze if you have a restricted metering device, long term it may kill the compressor.
    "Surprised ?! If I woke up tomorrow with my head sewn to the carpet, I wouldn't be more surprised."
    Clark Griswold

  3. #3
    Join Date
    Aug 2006
    Posts
    112
    non condensables will collect in the condenser and lessen the system capacity,while also raising head pressure. moisture will be drawn through the system into the metering device and freeze up causing restriction and cappacity loss as well as causing acid that will eat the insulation from the motor windings and cuase a burn out and sludge. pull vacume to 250 microns or lower then break vacume with nitrgen and repull vacume to remove non condensables from all systems before charging.

  4. #4
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,509
    alone with what has already been said
    Poe oil will absorb any moisture in the nocondensables and keep it causing a very short compressor life

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