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  1. #1
    Join Date
    May 2007
    Location
    southern california
    Posts
    9

    uv dyes good or bad

    What’s your thought on uv dyes for locating refrigerant leaks. I have used it on cars to locate leaks and love it. the only drawback that I know of is the time it takes to show up on small leaks. Does anybody know if the dye is damaging to the refrigerant or effects the refrigerant oil?

  2. #2
    Join Date
    Dec 2006
    Location
    Middle Tennessee
    Posts
    11,347

    *

    Quote Originally Posted by asmercer View Post
    What’s your thought on uv dyes for locating refrigerant leaks. I have used it on cars to locate leaks and love it. the only drawback that I know of is the time it takes to show up on small leaks. Does anybody know if the dye is damaging to the refrigerant or effects the refrigerant oil?
    in my humble opinion only oil and refrigerant should be present in a refrigeration circuit!



    .

  3. #3
    Join Date
    Apr 2006
    Location
    South West Ohio
    Posts
    395
    Not a thing in the world wrong with it. Some leaks can be found with out it. We use it several times a year. To this day we have never had a problem with it other than its hell to get out of your clothes when you get it on you.

  4. #4
    Join Date
    Mar 2003
    Posts
    1,232
    Several years ago I overhauled an 80 ton Trane unit that lost lubrication and wiped out the main bearings and scrambled the rods,etc. When I removed the oil it was a weird orange color. I found out that two of the maint. men at this location ( a film studio) had added dye to the system to locate leaks. What they didn't tell each other was the fact that they each used dyes from different manufacturers and apparently there was a chemical breakdown between both dyes and the oil, thus the loss of lubrication and comp. failure. I removed over six gallons of contaminated oil from the system before I put the comp. back into service. Bottom line....I hate that crap and would never add any to a system--use an H10 to locate leaks.

  5. #5
    Join Date
    Jan 2001
    Location
    So.Cal
    Posts
    435
    From my experience it seems more problems with dyes in low and mid temp refrigeration. By problems I mean restricted TXVs. Tought to blame a comp burnout or lock-up on dye but some OEMs have the statistics for that and will void warranties.

  6. #6
    Join Date
    Jan 2006
    Location
    Near Atlanta, GA.
    Posts
    14,437
    Dye has it's place. we use it for elusive leaks and for preventative on systems that hold large amounts of refrigerant.

    Some of the early dyes might (emphasis on might) have caused some problems, I know of no problems with the current crop of dyes.

  7. #7
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,510
    i refuse to use it because of all the reasons given alread

    leaks can be found with out it

  8. #8
    Copeland has specifically stated that "system additives" are not to be used in their compressors. Trane (the other major compressor manufacturer) has said the same thing. I know that Lennox requires any failed compressor to be returned if it failed within the first 20 months. They ship the compressors back to Copeland. If Copeland finds dye in the system, they could refuse the warranty and Lennox would probably back them up.

  9. #9
    Join Date
    May 2007
    Location
    southern california
    Posts
    9
    Quote Originally Posted by Cody_Virginia View Post
    Copeland has specifically stated that "system additives" are not to be used in their compressors. Trane (the other major compressor manufacturer) has said the same thing. I know that Lennox requires any failed compressor to be returned if it failed within the first 20 months. They ship the compressors back to Copeland. If Copeland finds dye in the system, they could refuse the warranty and Lennox would probably back them up.
    thanks for all the replies , the warranty issue sounds like a great reason why not to use the dyes

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