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  1. #1
    Join Date
    Nov 2001
    Posts
    105
    Post Likes
    My central AC lineset has 5/8" nom. (3/4" OD) suction line. But the armaflex that is on it is for 3/4" nom (7/8" OD) tubing. This leaves a small 1/8" gap running the entire length of the lineset. Is this a problem that needs to be fixed? If so, could it possibly harm the system?Thanks.

  2. #2
    Join Date
    Jul 2006
    Location
    Southern CT
    Posts
    552
    Post Likes
    As long as the insulation is glued or taped tight, the air space between the pipe and armaflex will not be a problem

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