Page 1 of 2 12 LastLast
Results 1 to 13 of 14

Thread: Coil Repair ...

  1. #1
    Join Date
    Apr 2006
    Posts
    35
    Post Likes

    Coil Repair ...

    I have a R-22 System that had a small leak in the Condensing Coil which I fixed, Then Tested for leaks with Nitrogen, Then pulled Vacuum down to 500 Microns. Problem: I tried to add Refrigerant to system on 60 degree day, Gauges reads High side 155 psi, Low Side went into Vacuum after 1 minute. My guess is to add more R-22?

  2. #2
    Join Date
    Jan 2014
    Location
    New England
    Posts
    3,310
    Post Likes
    I would have looked at the data plate ( if it's still visible ) for the basic charge then take it from there. Changing drier also.

  3. #3
    Join Date
    Mar 2014
    Location
    Ottawa,ON
    Posts
    231
    Post Likes
    What should the pressures be? Subcooling superheat ?


    Sent from my iPhone using Tapatalk

  4. #4
    Join Date
    Jan 2015
    Location
    Iowa
    Posts
    638
    Post Likes
    Name plate should be a good place to start as it should have the amount of R22 it requires for a standard installation. From a vacuum you should have been able to pull most if not the whole charge in. Did you put that much in? if yes start looking for causes other than low charge

  5. #5
    Join Date
    Oct 2014
    Location
    Minnesota
    Posts
    222
    Post Likes
    All your valves open? Did you change the drier after the repair? Can't give you too much info here in the open forum. You have enough posts to apply for a pro membership.

    Obviously you gave us your gauges but nothing else. We need more info to help you out. Basic troubleshooting info too.

  6. #6
    Join Date
    Aug 2012
    Posts
    3,597
    Post Likes
    this dudes maskarading as a technician.

  7. Likes HeatenCoolair, KB Cool, UmmScott liked this post
  8. #7
    Join Date
    Jul 2016
    Location
    Vancouver BC Canada
    Posts
    61
    Post Likes
    Quote Originally Posted by toocoolforschool View Post
    this dudes maskarading as a technician.
    Diy written all over it

    Sent from my SM-G930W8 using Tapatalk

  9. Likes UmmScott liked this post
  10. #8
    Join Date
    Jul 2011
    Location
    Dallas, TX.
    Posts
    406
    Post Likes
    Since you've gotten this far all you need now is an indepth understanding of superheat and subcooling. That's all you need to get it right.

    Sent from my LGLS991 using Tapatalk

  11. #9
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    3,259
    Post Likes
    You notice how everyones getting scared to add more r-22 now since it's so expensive. It's like they don't want to add anymore than they have too. But, this guy probably aready killed his 12oz ebay can.

  12. Likes UmmScott, HeatenCoolair liked this post
  13. #10
    Join Date
    Jun 2016
    Location
    washington state
    Posts
    33
    Post Likes
    low side in a vacuum? How much did you weigh in? You maybe have a stuck txv.

  14. #11
    Join Date
    Jan 2004
    Location
    PA
    Posts
    73,809
    Post Likes
    Quote Originally Posted by toocoolforschool View Post
    this dudes maskarading as a technician.
    Quote Originally Posted by HeatenCoolair View Post
    Diy written all over it

    Sent from my SM-G930W8 using Tapatalk
    Not according to the other post he's made since 2006.

    Please read the old post people have before labeling them a DIYer. Thank you.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  15. #12
    Join Date
    Aug 2012
    Posts
    3,597
    Post Likes
    yessir boss.

  16. #13
    Join Date
    Dec 2004
    Location
    Chicago area
    Posts
    3,845
    Post Likes
    Quote Originally Posted by facesofdeff View Post
    I have a R-22 System that had a small leak in the Condensing Coil which I fixed, Then Tested for leaks with Nitrogen, Then pulled Vacuum down to 500 Microns. Problem: I tried to add Refrigerant to system on 60 degree day, Gauges reads High side 155 psi, Low Side went into Vacuum after 1 minute. My guess is to add more R-22?
    How much refrigerant did you add?


    Sent from my iPhone using Tapatalk

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
  •  

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.