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  1. #1
    Join Date
    Nov 2011
    Posts
    53

    Mini-split liquid line flashing

    On most of the Japanese/Chinese/Korean mini-splits out today the expansion device is located in the condenser. So does this mean that the liquid line must be well insulated to keep from losing capacity?

    On my unit a few feet of the insulation is really degraded from sun exposure and copper is visible in a few spots. Is this leading to some loss of capacity? (I know another reason to insulate is to keep the lines from sweating, but that's not my main interest.)

  2. #2
    Join Date
    Dec 2010
    Location
    Palm Beach,Fl.
    Posts
    958
    Yes, both lines need to be insulated if the metering device is in the outdoor unit. The small line is basically just a long cap tube.
    Quote Originally Posted by k-fridge View Post
    The laws of physics know no brand names.

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