Refrigerant 502
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Thread: Refrigerant 502

  1. #1
    Join Date
    Sep 2004
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    192

    Refrigerant 502

    What type of system's use Refrigerant r- 502?

  2. #2
    TGGsucks Guest
    Low temp refrigeration....Replaced by 404a, not a retro-fit refrig...

  3. #3
    Join Date
    Nov 2000
    Location
    Hoggtown! Toronto, ON
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    1,133
    As TGG said. You found that stuff in old walk-in freezers at restaurants, etc.
    It was a great refrigerant, just like R-12 but alas not very environmentally friendly.
    "...refresh my memory. When did I start caring about this stuff...?"

  4. #4
    Join Date
    Dec 2002
    Location
    in a house, Appomattox, Va.
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    3,233
    I've seen a few OOOLLLDD carrier split a/cs that were R502. Some commercial and a res or two that had semihermetic comps in them.
    Col 3:23


    questions asked, answers received, ignorance abated

  5. #5
    TGGsucks Guest
    Billy, are you sure they were not R 500, a yellow bottle?

  6. #6
    Join Date
    Nov 2005
    Posts
    574
    Old (Hoe) ice machines

  7. #7
    Join Date
    Jan 2006
    Location
    Near Atlanta, GA.
    Posts
    14,488
    Mostly commercial low temp refrigeration and ice machines. R-502 is a CFC so it's being phased out and is getting scarce. R-404 is now being used in many of the applications that was R-502.

    Ahhh, that was the good old days.

  8. #8
    Join Date
    Dec 2002
    Location
    in a house, Appomattox, Va.
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    3,233
    Maybe 500, its been years since I've seen one. Someone put r22 in one to limp it a few days till we replaced it. I suppose it "worked" for the time being.
    Col 3:23


    questions asked, answers received, ignorance abated

  9. #9
    TGGsucks Guest
    Bill, the only reason why I asked, is because I knew I guy when I was in the Air Force, that put 502 in a 500 system, and blewout the valves on the semi...God I wish those days, when I could clean my tools in R-11.....

  10. #10
    Join Date
    Apr 2003
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    Somewhere in the Caribbean
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    Just curious what 30-lb of r-502 is selling for in the US now?
    Is it more expensive than r-404a?

  11. #11
    Join Date
    Mar 2005
    Location
    Portland
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    177
    last time i bought a 30 lb jug it was over 900.00 so that worked out to 30.00 a lb wholsale. that was several years ago so i can only imagine what it is today.
    you will attract more flies with honey than with vinegar, but you can attract the most with a dead cat

  12. #12
    Join Date
    Apr 2003
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    Somewhere in the Caribbean
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    221
    Quote Originally Posted by heatermanbob View Post
    last time i bought a 30 lb jug it was over 900.00 so that worked out to 30.00 a lb wholsale. that was several years ago so i can only imagine what it is today.
    WHOA!!!!!
    I have one customer who still has some r-502 in use. Our local wholesalers have just stopped selling it. I found and bought the last 2 jugs that I could find. $239 per 30 lb. jug. I don't think I'll be finding any more for sale on the island. Therefore, I will be prepping those systems for r-404a so they are ready if a change is needed.

  13. #13
    Join Date
    Apr 2003
    Location
    Somewhere in the Caribbean
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    Quote Originally Posted by TGGsucks View Post
    Billy, are you sure they were not R 500, a yellow bottle?
    Carrier does love a good name:
    r-500 Carrene
    r-410a Puron

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