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  1. #1
    Join Date
    Mar 2011
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    practical way of removing air in system



    Hi guys just wondered if any one could recommend a practical way of recovering NCG in a system with out costly destruction charges an hrs of labor.



  2. #2
    Join Date
    May 2007
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    Auckland
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    Re: practical way of removing air in system

    What refrigerant are we talking about, if ***** based, recover system charge , evacuate as well as find the leak. And start again with new refrigerant charge.
    If ammonia, do a high side purge , then find the leak and repair, because the problem will only re-occur.

  3. #3
    Join Date
    Dec 2008
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    Portugal
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    Re: practical way of removing air in system

    OR buy an automatic air purger. Please note that the water vapor will stay mixed with the ammonia and will not be purged. Water in the system is not good to the plant. There is also automatic machines to remove water from the system.
    To make progress is never good enough, I want to do better and better and better

  4. #4
    Join Date
    Apr 2006
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    Not so sunny coast (BC Canada)
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    35
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    Re: practical way of removing air in system

    do the job properly there is no skirting the proper procedure! recover the charge, do a pressure and vacuum test to locate the leak, recharge the origional gass in. check it again don, the better you are at it faster it will go!
    Now in Redvers Sask.

  5. #5
    Join Date
    Oct 2003
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    Belgium
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    Re: practical way of removing air in system

    Big or small system? What kind of compressor? With service valves on the compressor itselves?
    It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.

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