Page 3 of 3 FirstFirst 123
Results 27 to 34 of 34
  1. #27
    Join Date
    Jul 2006
    Location
    Virginia
    Posts
    4,625
    around here they dont even remove the contaninated driers in the Trane burn outs they just add a biflw in the liquid line outdide the unit .also you can get high acid liquid line driers .myself i believe in suction driers and go back in a couple of weeks and remove them and replace all LL driers
    We really need change now

  2. #28
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    Quote Originally Posted by iscan View Post
    But if the pressure drop is up to 30 psig due to long piping I'd rather put largher compressor in first after replacing the burning out compressor.
    Just to make sure the new dies faster than the old one did?
    If more government is the answer, then it's a really stupid question.

  3. #29
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,851
    Quote Originally Posted by iscan View Post
    But if the pressure drop is up to 30 psig due to long piping I'd rather put largher compressor in first after replacing the burning out compressor.
    How about fix the piping and add long piping accessories.

  4. #30
    Join Date
    Feb 2012
    Location
    Moscow
    Posts
    16
    Just to explain our Client banking group replacing the old aged 3 months burned out compressor isn't enough. I think the new one more powerful Copeland scroll have been working for 1 year will die this summer. Now it sounds like that. It pumps R22 at 45 psig on low suction side. Than after its death I hope the client gonna buy new compressor, subcooler (plate heat exchanger) and so on. But cutting pipes to limit its lengh to reduce gas flashing is impossible there. Only cutting payments is welcomed. Joke

  5. #31
    Join Date
    Feb 2012
    Location
    Moscow
    Posts
    16
    Should have been said about adding subcooler with largher compressor before but want to observe another points of view.

  6. #32
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,851
    proper sizing of the pipes does not involve shortening them. just need to increase diameter to correct size

  7. #33
    Quote Originally Posted by iscan View Post
    Just to explain our Client banking group replacing the old aged 3 months burned out compressor isn't enough. I think the new one more powerful Copeland scroll have been working for 1 year will die this summer. Now it sounds like that. It pumps R22 at 45 psig on low suction side. Than after its death I hope the client gonna buy new compressor, subcooler (plate heat exchanger) and so on. But cutting pipes to limit its lengh to reduce gas flashing is impossible there. Only cutting payments is welcomed. Joke
    Russian humor, you gotta love it. I get it and am laughing my self silly.

    But than again I come from an Eastern European back ground and my Uncle is always cracking jokes like Iscan.

  8. #34
    Join Date
    Feb 2012
    Location
    Moscow
    Posts
    16
    I'm glad you got the humor Hvac5646, because I'm not very keen on languages. As for Gravity suggestion to increase pipe diameter to correct size I think it's a good idea. I know Trane gives 2 different diameters and 2 different lengths for installation of its split outdoor units model # TTK518. But I'm afraid there have been already installed max 7/8" suction pipes at our Cllient's site and further diameter increasing won't bring any difference.

Page 3 of 3 FirstFirst 123

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