2013



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  1. #1
    Join Date
    May 2010
    Location
    Canada
    Age
    37
    Posts
    1
    Rep Power
    0

    Chiller tripping on High Pressure fault


    Hi,
    Need your help again, I have this FreezeCo chiller faulting out on "Compressor High Pressure" alarm.
    Refrigerant : R22
    Compressor : 1
    Application : Cooling process coolant
    Condensor : Very clean, no blockage to air flow
    It has In built High Pressure gauge showing 230 PSI, Low pressure gauge showing 45 PSI. When I connect my gauges it shows 330 PSI and 145 PSI. Also it faults out at the end of the cycle when thermostat is satisfied and compressor is about to turn off. In built High pressure gauge needle will start shaking, unit will fault out and compressor stops. Can not read model number or serial number on the unit.
    Any help will be greatly appreciated.
    Josh



  2. #2
    Join Date
    Oct 2008
    Location
    newbury
    Age
    53
    Posts
    1,212
    Rep Power
    19

    Re: Chiller tripping on High Pressure fault

    as a guess contaminated or overcharged. pull the gas and weigh in fresh

  3. #3
    Join Date
    Dec 2009
    Location
    Australia
    Age
    40
    Posts
    5
    Rep Power
    0

    Re: Chiller tripping on High Pressure fault

    Ask if anyone had worked on this chiller recently and if so what did they do - if so good indication of overcharging as mentioned above, they may have charged system by the inaccurate system gauges. Otherwise the usual checks for HP issues, are the condenser fans turning the right way? etc

  4. #4
    Join Date
    Aug 2007
    Location
    Sydney
    Age
    42
    Posts
    1,107
    Rep Power
    13

    Re: Chiller tripping on High Pressure fault

    Hi Josh & welcome to our forum
    we need to know the air on temp of cond with pressure for a more accurate diagnosis. Should not rely on chiller mounted gauges as they sit there all day vibrating, slipping out of callibration.

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