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  1. #1
    Join Date
    Aug 2012
    Location
    Portland, Or
    Posts
    105

    R-22 replacement advice/help

    Gentleman,

    Any advice on which refrigerant to use for replacing R-22. Im seeing a lot of them out there, and thought I'd jump on here and find out which is best for low, mecimum, and high temp systems?

    Thanks

  2. #2
    Join Date
    Feb 2013
    Location
    NE philly
    Posts
    9
    hot shot

  3. #3
    Join Date
    Aug 2002
    Location
    Southold.calm
    Posts
    4,857
    Quote Originally Posted by Legitshop View Post
    hot shot
    Not for 22

  4. #4
    I've had no problems dropping in MO99 in most systems.

  5. #5
    Join Date
    Aug 2012
    Location
    Portland, Or
    Posts
    105
    Hot shot post is just a up being an ass

  6. #6
    Join Date
    Oct 2007
    Location
    Miami, FL.
    Posts
    409
    We have been using R422D for high temp.
    I miss you mom and dad.

  7. #7
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    20,270
    R407C is approved by a few dry unit makers for AC

    Aftermarket probably MO99 (cheaper).

    Note there are NO, repeat NO 'drop in' substitutes one can mix with R-22. ALL must be replacements, and most will kinda behave with MO... yet better with POE.
    GA-HVAC-Tech

    Galatians 2:20-21; Colossians 1: 21-22 & 26-27; 3:1-4; Romans Ch's 5-6-7-8

    2 Chronicles 7:14

    Quality work at a fair price with excellent customer service.

  8. #8
    Join Date
    Jun 2003
    Location
    French Settlement, Louisiana, United States
    Posts
    245
    Which replacement has the best capacity match to r22 with no oil change?

  9. #9
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    20,270
    Quote Originally Posted by coolcajun View Post
    Which replacement has the best capacity match to r22 with no oil change?
    Probably MO99... It has an additive to make it work better with MO.

    Talk to a few folks before you make a decision.

    ALL refrigerant changes require: remove (recover) old juice, flush (N2 or chemical), change oil if necessary, ALWAYS change LL filter/dryer, install new refrigerant.
    GA-HVAC-Tech

    Galatians 2:20-21; Colossians 1: 21-22 & 26-27; 3:1-4; Romans Ch's 5-6-7-8

    2 Chronicles 7:14

    Quality work at a fair price with excellent customer service.

  10. #10
    Join Date
    Jun 2003
    Location
    French Settlement, Louisiana, United States
    Posts
    245
    [QUOTE=ga-hvac-tech;15363431]Probably MO99... It has an additive to make it work better with MO.

    Talk to a few folks before you make a decision.


    I was aware of that. Also was told have to replace shraders with M099.

  11. #11
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    20,270
    [QUOTE=coolcajun;15363951]
    Quote Originally Posted by ga-hvac-tech View Post
    Probably MO99... It has an additive to make it work better with MO.

    Talk to a few folks before you make a decision.


    I was aware of that. Also was told have to replace shraders with M099.
    Yes, I did not post that... replace schraders with any oil change. THX
    GA-HVAC-Tech

    Galatians 2:20-21; Colossians 1: 21-22 & 26-27; 3:1-4; Romans Ch's 5-6-7-8

    2 Chronicles 7:14

    Quality work at a fair price with excellent customer service.

  12. #12
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    Does anything besides MO99 have specific SNAP approval as a retrofit replacement for R-22 yet?
    If more government is the answer, then it's a really stupid question.

  13. #13
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    20,270
    Quote Originally Posted by mark beiser View Post
    Does anything besides MO99 have specific SNAP approval as a retrofit replacement for R-22 yet?
    Hmmm... have not heard of SNAP approval yet... could you post a link?
    GA-HVAC-Tech

    Galatians 2:20-21; Colossians 1: 21-22 & 26-27; 3:1-4; Romans Ch's 5-6-7-8

    2 Chronicles 7:14

    Quality work at a fair price with excellent customer service.

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