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  1. #1
    Join Date
    Jun 2004
    Location
    Latgo, FL
    Posts
    2
    I have a 24-year old General Electric refrigerator. Is there a substitute refrigerant (like FR-12 or Freeze12) that can be used to top off an old R12 system? What is involved in converting the unit to R134a?

  2. #2
    Join Date
    Feb 2002
    Location
    Yuma, Arizona
    Posts
    930
    Go with R-420 or R-409, if your going to put the time in.

    If the units that old and you need to put to many parts in it, replace it.
    Don't spend the time to go to R-134a.

    My thoughts,

    Yuma,
    What is snow? Is it that white stuff in a freezer?

  3. #3
    Join Date
    Apr 2002
    Location
    Leesburg Ga Occupation:
    Posts
    85
    You have to be EPA certified purchase any R-12 substitute. a 134a conversion would likely not be successful on a unit that old

    [Edited by HVACDawg on 06-13-2004 at 07:35 PM]

  4. #4
    Join Date
    Jun 2004
    Location
    Latgo, FL
    Posts
    2
    I am EPA certified, but my work had been primarily on R22 split systems in the apartment industry. I have an opportunity to be given a new refrigerator (less tha 1 year old) in about 4 months. However, I need to limp my old unit across the finish line until then. So could I use FR12 or something like it to top off my system?

  5. #5
    Join Date
    Feb 2002
    Location
    Yuma, Arizona
    Posts
    930
    rcb2,
    do a search on this site for mixing refrigerants.

    You'll find out you can in some cases. One blend (R420) says you can (??????) I think another says the same.
    Good luck,
    Yuma.
    What is snow? Is it that white stuff in a freezer?

  6. #6
    Join Date
    Jun 2004
    Posts
    160

    Hmm

    Hot shot r-414B is the best replacement for r-12 I've used
    works great on ge refrigerators, cars etc.
    use 80% to volume or if you would normally use 10 oz of r-12 use 8 oz r-414b and you don't have to worry about oil compatability.

  7. #7
    Join Date
    Mar 2004
    Location
    Windsor, ON Canada
    Posts
    168
    I agree with kool it man. You can add it right to the r12 and it'll work...

  8. #8
    Join Date
    Oct 2001
    Location
    Waterford Michigan
    Posts
    2,668
    Originally posted by jeffcolledge
    I agree with kool it man. You can add it right to the r12 and it'll work...
    Last time I looked it was still illegal to mix refrigerants in the U.S.

  9. #9
    Join Date
    Feb 2002
    Location
    Yuma, Arizona
    Posts
    930
    Originally posted by johnl45
    Last time I looked it was still illegal to mix refrigerants in the U.S. [/QUOTE]

    What ?????

    Where did you hear that?

    What is snow? Is it that white stuff in a freezer?

  10. #10
    Join Date
    May 2000
    Location
    Monmouth Junction-NJ-USA
    Posts
    6,039
    Originally posted by jeffcolledge
    I agree with kool it man. You can add it right to the r12 and it'll work...
    That is not legal nor acceptable refrigeration pracatices

    If you really know how it works, you have an execellent chance of fixin' er up!

    Tomorrow is promised to no one...

  11. #11
    Join Date
    Dec 2002
    Posts
    603
    Last time I looked it was still illegal to mix refrigerants in the U.S. Evan by mistake???

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