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  1. #1
    Join Date
    Nov 2001
    Posts
    105
    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
    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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