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  1. #1
    Join Date
    Sep 2010
    Location
    miami,fl.
    Posts
    614

    r-22 with poe oil

    i went on a service call. compressor shorted out. found contactor welded closed. compressor was under warranty. need to replace comp. but my question was i noticed this bad comp said poe oil and its was running r-22. Is that ok. i thought r-22 had mineral oil in it and you dont want to mix oils or it can form acid? any input. or links i can learn more about refrigerants and oil mixtures

  2. #2
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,567

  3. #3
    Join Date
    Feb 2012
    Location
    EVERYWHERE
    Posts
    228
    Quote Originally Posted by anthonyac1 View Post
    i went on a service call. compressor shorted out. found contactor welded closed. compressor was under warranty. need to replace comp. but my question was i noticed this bad comp said poe oil and its was running r-22. Is that ok. i thought r-22 had mineral oil in it and you dont want to mix oils or it can form acid? any input. or links i can learn more about refrigerants and oil mixtures
    R22 does not have oil in it when you buy it. The unit has poe or mineral in it.R22 works fine with poe.I would use poe if the unit calls for it. Just do not mix poe and mineral or it will gum up and cause a lot of issues.

  4. #4
    Join Date
    Oct 2005
    Location
    B.C. Canada
    Posts
    855
    As far as I understand POE is compatable with anything....doesnt mean i like it though!

  5. #5
    Join Date
    Nov 2007
    Location
    Sherman, TX
    Posts
    9,441
    Lots of racks out there, running R-22 and POE.

    If it was bad news, Copeland wouldn't be manufacturing compressors for R-22 service and shipping them with POE oil.
    Technical incompetence is NOT a sales tool....

  6. #6
    Join Date
    Apr 2003
    Location
    Maple Grove, MN
    Posts
    1,276
    Compressor manufacturers are using POE in more and more of it's compressors. This is something you will need to check when you are replacing a compressor. I ran into this issue last week. I was replacing a bad compressor on a R22 walk in cooler and decided to get an entire new condensing unit. Right before I brazed everything up, I noticed where it said it had POE on the compressor. I was pretty pissed, but happy I didn't braze it up yet. I was able to return it and get one that had mineral oil in it like the original.

    It would be easier if they could just ship the compressors dry and then maybe include a couple of different bottles of oil so we could pick which one we wanted. Either that, or design some type of universal oil that will mix with everything and not suck so bad. I don't expect this to happen any time soon, though.

  7. #7
    Join Date
    May 2003
    Location
    Utah
    Posts
    721
    Mineral oil decomposition due to extreme discharge temperatures is a definite problem in LT R-22 systems. One advantage of POE over mineral oil in R-22 low temperature applications is that it is more stable at the elevated temperatures occurring in these systems.

  8. #8
    Join Date
    Feb 2004
    Location
    British Columbia, Canada
    Posts
    521
    Quote Originally Posted by coolerik View Post
    As far as I understand POE is compatable with anything....doesnt mean i like it though!
    Nope, NOT compatible with R-12.

  9. #9
    Join Date
    Aug 2002
    Location
    Southold.calm
    Posts
    5,602
    Quote Originally Posted by koolkahuna View Post
    Nope, NOT compatible with R-12.
    Thats a new one on me.

    Care to explain?

  10. #10
    Join Date
    Feb 2004
    Location
    British Columbia, Canada
    Posts
    521
    Will do, right after this call is completed...

  11. #11
    Join Date
    Feb 2004
    Location
    British Columbia, Canada
    Posts
    521
    Sorry, I typed that in wrong.
    What I meant was that you can't mix R-12, POE, and Tequila.
    Apparently I just had a mini-stroke/brain fart...not sure what I was thinking.
    POE IS compatible with all refrigerants according to literature I could find.

    Actually, I was told by several suppliers, and other techs that R-12 was the only refrigerant not compatible with POE. As I never charge a system with R-12 anymore, I took their word for it.
    Don't I look like the tool...
    My Apologies!

  12. #12
    Join Date
    Nov 2007
    Location
    Sherman, TX
    Posts
    9,441
    Quote Originally Posted by pecmsg View Post
    Thats a new one on me.

    Care to explain?
    I have seen charts that say not to use R-12 with POE. Dunno why though.
    Technical incompetence is NOT a sales tool....

  13. #13
    Join Date
    Feb 2004
    Location
    British Columbia, Canada
    Posts
    521

    Confused

    I thought I had too...almost a Matrix moment for me trying to find backup for my statement that R-12 wasn't compatible with POE, what I thought was true is all of a sudden not?
    I gotta go check the back of my neck for a cable plug in now...

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