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  1. #1
    Join Date
    Mar 2003
    Posts
    30

    trace refrigerant

    Since R-22 has become so expensive, I don't want to use it as a trace gas for chiller leak check. In the past I would use R-22 and nitro, What are you guys using now?

  2. #2
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    1,847
    Why use trace refrigerant ... Whats wrong with nitrogen and soap or my personal favorite........ Snoop . I only use trace refrigerant as a last resort ...what about 134a ??
    The 64 roars to life Whoo hoo ...shes a rolling chassis .
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  3. #3
    Join Date
    Jul 2007
    Location
    The Hot South
    Posts
    1,204
    134A.

    If its a low pressure chiller, there will be some residual refrigerant in the chiller after you recover the gas. Just put nitrogen in and your good to go.

  4. #4
    Join Date
    Apr 2013
    Location
    Portugal
    Posts
    18
    In Europe its forbidden use any refrigerant that cause Global warming as a tracer. If we can´tt find the leak with Nitrogen and soap, we use a corant mixed in the oil.

  5. #5
    Join Date
    Aug 2006
    Location
    Mixing oil and fire with a big spoon.
    Posts
    4,006
    22 still works. 134a is ok, but starts to condense if you want to go real high (just below the relief valve pressure setting). we have discussed using 410a but we have yet to use it.
    It's tube brushing season...93% done (39.35 miles of tubing)...only 1,242 tubes to go!

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  6. #6
    Join Date
    Dec 2006
    Location
    Somewhere in Canada
    Posts
    84
    Very interesting, What is a "corlant" mixture?

  7. #7
    Join Date
    Dec 2006
    Location
    Somewhere in Canada
    Posts
    84
    I goofed ... please What is a "corant" mixture?

  8. #8
    Join Date
    Jan 2011
    Posts
    1,033
    Quote Originally Posted by Ph-D View Post
    I goofed ... please What is a "corant" mixture?
    I believe he meant "colorant" (dye) mixed with the oil.

  9. #9
    Join Date
    Dec 2006
    Location
    Somewhere in Canada
    Posts
    84
    Thank you KnewYork, I believe you are correct. Thank You.

  10. #10
    Join Date
    Apr 2013
    Location
    Portugal
    Posts
    18
    Quote Originally Posted by KnewYork View Post
    I believe he meant "colorant" (dye) mixed with the oil.
    Yes. Thank you.

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