Results 1 to 5 of 5
  1. #1
    Join Date
    Jun 2008
    Post Likes

    Trane Lineset size-conflicting information

    I am planning to replace our 5 ton AC (XL15i) and the gas furnace(80% XV80). I currently have a 7/8" lineset. Some contracts have said I can stay with the 7/8" (with flush); other have said I must replace with 1 1/8" line. I plan on replacing the lines anyway but I am not sure who's advice to rely on.
    I also checked Trane's specs and I think I have conflicting information there too. Here are 2 Trane PDFs that, to me, are saying 2 different things. The equipment will be a 5 Ton AC with the coil to be either the 4TXCD061BC3HCA or the 4TXCD064BC3HCA (not sure yet).
    The 'Trane Lineset 7-8.pdf' shows a 7/8" is required for a 5 ton.
    The 'Trane Lineset 1 1-8.pdf' shows a 1 1/8" is required for the coils mentioned above, using R410.
    Can someone clarify this for me???
    Thanks... Gary

  2. #2
    Join Date
    Jan 2004
    Post Likes
    1 1/8", the R410A coil comes with a reducer.
    Contractor locator map


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

  3. #3
    Join Date
    Jul 2005
    Post Likes
    it all depends on each situation i have done both

    on replacements i like to changed but not always the best investment of time and money when you can flush because of location and the length off the run

    on sizing it again it depends on the length
    once you think you've seen it all
    I would rather work for free than be look upon as a thief!!!!!

  4. #4
    Join Date
    Jan 2008
    Post Likes
    I'd agree with beenthere, the 1 1/8" is better. Since you were planning on doing the lineset anyway - there is a possibility that using the 7/8" would reduce the system capacity a bit (I've seen 2% quoted). If the length were extremely short it might not matter.

  5. #5
    Join Date
    Feb 2008
    Western NC
    Post Likes
    Like I always say......

    Bigger is Better

    Go Big or Go Home
    I fully support the military and the War on Terrorism.

    If you don't know, then don't do. If you don't know and still do, then be prepared to pay someone else a lot to undo what you did and then do it right.

    If you do know, then do. But do it right. Otherwise, you may not be doing it long.

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.