Results 1 to 6 of 6

Thread: burn outs

  1. #1
    Join Date
    Jan 2007
    Location
    USA
    Age
    58
    Posts
    145
    Rep Power
    18

    burn outs



    I have a small Liebert mini mate. We had a leak in it we put dye in to find leak. System had burned out after dye was put in. There was a coating on every piece of the high side components. Compressor, piping, txv and plate condenser had to be changed. my question is did the dye cause the burnout? (create an acid enviroment) I have seen burn outs, but not to this extent. The refrigerant is 407C,poe oil. The smell was horrific.



  2. #2
    Join Date
    Oct 2008
    Location
    mallorca, spain,
    Age
    75
    Posts
    770
    Rep Power
    19

    Re: burn outs

    we have been worned about adding stuff like this , in reality why add something when there are better ways of finding a leak without the risk of this problem you have experienced
    all the best=

  3. #3
    Join Date
    Sep 2003
    Location
    ISRAEL
    Age
    72
    Posts
    4,266
    Rep Power
    46

    Re: burn outs

    Was it written on the dye can what kind of refrigeration oil it is good for?

  4. #4
    Join Date
    Oct 2001
    Location
    Nottingham UK
    Posts
    5,733
    Rep Power
    51

    Re: burn outs

    Quote Originally Posted by joe magee View Post
    I have seen burn outs, but not to this extent. The refrigerant is 407C,poe oil. The smell was horrific.
    Was the oil a black colour?

  5. #5
    Join Date
    Jan 2007
    Location
    USA
    Age
    58
    Posts
    145
    Rep Power
    18

    Re: burn outs

    The oil was green. The dye was the yellow jacket brand. You use the uv light. The coating looked like green scale. Like what you would see on the outside of a leaking water pipe. It is acceptable for use with poe oil. The lieberts units use a three minute time delay on the low side. If the unit is low on charge it will run in a vacuum before it times out allowing non condensilbles to enter the system. My guess is this is what happened. An enviroment for an acid condition was created. The addition of the dye(which I did not add) might have caused a bad condition to get worse. I have used the dye in the past with mixed results.

    Last edited by joe magee; 31-05-2009 at 09:39 PM.

  6. #6
    Join Date
    Oct 2001
    Location
    Nottingham UK
    Posts
    5,733
    Rep Power
    51

    Re: burn outs

    We've encountered system failures on R407C where the windings have burnt out.
    When you open the system, the smell in horrendous and the oil is a thick black sludge. From our experience this is due to poor installation practices and moisture in the system.

Similar Threads

  1. System Burn Out Troubleshooting
    By altaf22m in forum Technical Discussions
    Replies: 13
    Last Post: 07-05-2010, 09:24 AM
  2. Frequent compressor burn outs
    By askannan in forum Trouble Shooting
    Replies: 17
    Last Post: 17-04-2008, 08:05 AM
  3. Replies: 19
    Last Post: 15-04-2008, 07:03 PM
  4. Motor burn outs
    By bernard in forum Industrial Compressors
    Replies: 8
    Last Post: 25-06-2005, 11:00 PM
  5. Burn out procedures
    By reggie in forum Fundamentals
    Replies: 13
    Last Post: 22-01-2003, 07:06 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •