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  1. #1
    Join Date
    Jun 2008
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    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
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