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  1. #14
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    3,999
    Post Likes
    moisture and oil make acid

    dont ask me how ....

  2. #15
    Join Date
    Feb 2012
    Location
    Corpus Christi
    Posts
    16
    Post Likes
    Quote Originally Posted by Samshawn View Post
    What will cause the acid in the Compressor oil?
    Here is a good thread about what conditions lead to the formation of acid in a system.

    http://hvac-talk.com/vbb/showthread.php?t=100144

  3. #16
    Join Date
    Dec 2011
    Location
    Asheville, N.C.
    Posts
    103
    Post Likes
    Quote Originally Posted by Samshawn View Post
    What will cause the acid in the Compressor oil?
    If the refrigerant in the system gets too hot, the compounds will begin to break down forming acids that will mix with the oil. If the system does not get hot enough to cause a burnout the acid stays in the system till it eats it up or is nuetrilized. Certain noncondinsables can also cause acid.

  4. #17
    Join Date
    Mar 2012
    Location
    Connecticut
    Posts
    43
    Post Likes
    Thank you very much everyone.

  5. #18
    Join Date
    Aug 2007
    Location
    Elkhorn, Wisconsin 53121
    Posts
    22
    Post Likes
    Quote Originally Posted by Samshawn View Post
    What will cause the acid in the Compressor oil?
    usually a system that was previously contaminated from a compressor burn out.

  6. #19
    Join Date
    Feb 2004
    Location
    Madison, WI
    Posts
    324
    Post Likes
    Sure you can change the oil. If it has mineral oil in it change it to an equal amount of polyolester oil and mark it well. Then in the future if R-22 gets crazy expensive you can use R-407C which is the recommended replacement for Copeland products.
    Some folks say you have to get every drop of mineral out or you will contaminate the polyolester...Not true, just dump as much out as you can and refill with equal amount.
    Of course if you had acid or water in the system you still have to add suction and liquid line driers to treat the oil that is out in the system.

  7. #20
    Join Date
    Dec 2005
    Location
    Cleveland, OH
    Posts
    3,671
    Post Likes
    I used to have one of these, it works as advertised:

    http://www.nucalgon.com/assets/prodlit/3-78.pdf
    Good? Bad? I'm the guy with the gun.

    Statements made by me are strictly my opinions and do not reflect the opinions of my employer. I am not authorized to make any official statements on behalf of my employer.
    Any technical advice offered by me is for educational purposes only, all HVAC related repairs should only be attempted by qualified personnel.

  8. #21
    Join Date
    Mar 2016
    Posts
    1
    Post Likes

    help

    Quote Originally Posted by Samshawn View Post
    What will cause the acid in the Compressor oil?
    because the compressor is bad.

  9. #22
    Join Date
    Mar 2015
    Location
    ARK.
    Posts
    3,140
    Post Likes
    Simple introduction of,
    AIR.
    Hydrogen,Oxygen+Chlorine=Disaster.
    Simple but deadly.
    No matter how long you have been doing this,
    Go back and reread the Basic's.You WILL Learn something.
    Why is it called,an Act of GOD when IT has Nothing to do with Him?
    Will of the Devil would be more appropriate IMO.Just Saying.
    PSALMS, 18 & 25.

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