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  1. #27
    Join Date
    Feb 2012
    Location
    PA
    Posts
    27
    nope. haha. it was a time consuming process though because a real genius or 2 just added oil when the sentronic tripped instead of figuring out where the oil went. luckily, someone actually installed an oil line drier and ball valves on the return line from the seperater, so i was able to valve it off and drain the oil before it slugged. ended up getting 4 1/2 times the factory oil charge out of the system!

  2. #28
    Join Date
    Feb 2012
    Location
    EVERYWHERE
    Posts
    229
    Quote Originally Posted by jpsmith1cm View Post
    ...and it didn't instantly turn to concrete and plug all of the filters, driers, screens, strainers, valves, scramble the compressor internals and dissolve the copper piping?

    There are more then one kind of both Poe and Min so some might not gum up but I know that mine did.I guess tho if you never seen it than it never happen. I do know I will not mix it. But this is my last post on this because everyone thinks they know more about what I seen then I do.

  3. #29
    Join Date
    Dec 2007
    Location
    houston, texas
    Posts
    3,787
    You having an issue with one system doesn't make it the norm. When the companies that make the stuff say it can be mixed together I think that should be an good indication that maybe, just maybe, your experience was not typical.
    I'm not tolerating Political Correctness anymore, from now on it's tell it like it is.

    Veto Pro Pak - The best tool bag you'll ever own






  4. #30
    Join Date
    Feb 2008
    Location
    California
    Posts
    2,071
    I've seen plenty of R-22 racks out there that have had compressor changeouts with compressors filled with min oil or Poe oil when the rack had AB oil. And they run great.

    I'm willing to bet this guy who saw an instant gum up also threw in some type of super seal that reacted with his contaminated system and solidified at all components containing moisture.

  5. #31
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,918
    Quote Originally Posted by FixItRight

    There are more then one kind of both Poe and Min so some might not gum up but I know that mine did.I guess tho if you never seen it than it never happen. I do know I will not mix it. But this is my last post on this because everyone thinks they know more about what I seen then I do.
    There is more to it than my not having seen it.

    Since your mind is closed to information, we can agree to disagree on this topic.

  6. #32
    Join Date
    Jul 2001
    Location
    maryland
    Posts
    1,355
    This might be apples and oranges but people mix mineral and synthetic (POE) motor oils in cars all the time. Once upon a time car people were having this same discussion...

    If my makes any difference in this debate I vote for "mixing oil isn't
    a terrible big deal"

    but whatever.
    Saving the world...one service call at a time.

  7. #33
    Join Date
    Jul 2008
    Location
    Nova-Scotia, Canada
    Posts
    275
    Quote Originally Posted by valdelocc View Post
    I read an article by one of DuPont engineers regarding the conversion of existing r-22 systems to 438a (mo-99) and he recommends mixing a little POE with the system mineral oil to increase return.

    check it out

    http://www2.dupont.com/ISCEON/en_US/...ue_Allgood.pdf
    Phew! We had oil problems with one DT rack and a MT rack when we switched to MO-99. We found some cases logging oil. We put a few cans of POE in both and the problems seemed to have vanished


    No...no gumming up.

  8. #34
    Join Date
    Mar 2007
    Location
    Melbourne, Australia
    Posts
    19
    .
    Last edited by Damo; 03-23-2012 at 05:58 PM. Reason: Double posting

  9. #35
    Join Date
    Mar 2007
    Location
    Melbourne, Australia
    Posts
    19
    Copeland / Emersons response to the POE Mineral question for their R22 compressors?

    Go right ahead and mix them.

    http://www.emersonclimate.com/en-US/...essor.aspx#Q15

  10. #36
    Join Date
    Oct 2010
    Location
    Hanover, PA
    Posts
    6
    Well this should end the ongoing debate with some of the guys at my company.

  11. #37
    Join Date
    Feb 2012
    Location
    central Florida
    Posts
    154
    I have recently serviced an R-22 unit with poe oil almost made the mixing poe and mineral oil mistake.Close one but caught it.that was the first time I saw it done.

  12. #38
    Join Date
    Feb 2004
    Location
    British Columbia, Canada
    Posts
    529
    Quote Originally Posted by Damo View Post
    Copeland / Emersons response to the POE Mineral question for their R22 compressors?

    Go right ahead and mix them.

    http://www.emersonclimate.com/en-US/...essor.aspx#Q15
    I thought I had seen it somewhere that R-12 can't use POE, point #7 in this document states that plainly.
    I had also seen documentation stating that when performing an oil change to POE from mineral oil, three changes needed to be performed to get the min oil to a percentage lower than 5%. Anyone else ever see that?

    Thanks for posting that by the way!

  13. #39
    Join Date
    Feb 2004
    Location
    British Columbia, Canada
    Posts
    529
    Either that or use a refractometer...

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