Page 1 of 2 12 LastLast
Results 1 to 13 of 17
  1. #1
    Join Date
    Apr 2013
    Posts
    19

    R22 or replacement

    Have a flat 10 ton unit already found and repaired leak. What's my best option for refrigerant. I understand there are considerable capacity loss with replacement refrigerants.

    Sent from my DROID RAZR using Tapatalk 2

  2. #2
    Join Date
    Aug 2012
    Posts
    2,663
    Capacity loss and need to change oil to poe, and change o rings and possibly txv. I would do a serious pressure test and stick with 22.
    My name is TooCoolforschool and I am a chronic over charger.

  3. #3
    Join Date
    Jul 2007
    Location
    The Hot South
    Posts
    1,315
    Quote Originally Posted by toocoolforschool View Post
    Capacity loss and need to change oil to poe, and change o rings and possibly txv. I would do a serious pressure test and stick with 22.
    X2

  4. #4
    Join Date
    May 2004
    Location
    Memphis,TN
    Posts
    91
    MO99 is worth a try I just put it in an older 12.5ton carrier split system and the head runs lower ,suction runs lower, but 20 degree drop across the evaporator. The cost is a lot better than a drum of r-22.

  5. #5
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    7,031
    I'd go with r421a if it were mine.

  6. #6
    Join Date
    May 2013
    Location
    Utah
    Posts
    57
    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

    You can find the rules for posting and qualifications here.

    Additional infractions may result in loss of posting privileges.
    Last edited by jpsmith1cm; 06-02-2013 at 10:17 AM. Reason: non AOP Pro Member

  7. #7
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,659
    StarCat

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

    You can find the rules for posting and qualifications here.

    Additional infractions may result in loss of posting privileges.

  8. #8
    Join Date
    Aug 2004
    Location
    Tucson, Az
    Posts
    337
    I think on a 10 ton unit I'd follow the above recommendations. Verify no leaks (500 micron vac and hold) and stay with R-22.
    Jim
    Tucson, Az
    Keeping the Ice Cream Frozen!

  9. #9
    Join Date
    Apr 2013
    Posts
    19
    Thx for the input. Think I'll stay with 22

    Sent from my DROID RAZR using Tapatalk 2

  10. #10
    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

    You can find the rules for posting and qualifications here.

    Additional infractions may result in loss of posting privileges.
    Last edited by jpsmith1cm; 06-04-2013 at 05:44 AM. Reason: non AOP Pro Member

  11. #11
    Join Date
    Jul 2007
    Location
    The Hot South
    Posts
    1,315
    Flush with R11 huh?

  12. #12
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,659
    daledehart19

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

    You can find the rules for posting and qualifications here.

    Additional infractions may result in loss of posting privileges.

  13. #13
    Join Date
    Apr 2007
    Posts
    623
    Quote Originally Posted by jtrammel View Post
    I'd go with r421a if it were mine.
    I have seen that you use R421A in a couple of other threads I have seen. Just wondering what kind of results you are seeing, and if you are noticing any real capacity loss or any unexpected draw backs or benefits. I just retrofitted one to R421A today, so I haven't gotten to see any long term results.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event