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  1. #1
    Join Date
    Feb 2009
    Location
    Home Energy Products: 170 DW Hwy, Belmont, NH 03220
    Posts
    39
    Post Likes

    Confused Suction Line size reduction on ductless unit.

    We're bidding to finish up a job started by another contractor. 1/4 x 1/2 lines are in the wall but owner wants a unit installed that calls for 1/4 x 3/8. Any experience on this? Feedback as to any consequences? We neck em on multi zone units but the line sets are correct so a concern about larger volume of 1/2" line. We've seen it servicing other "not our install" units too.

  2. #2
    Join Date
    May 2004
    Location
    Frederick, MD
    Posts
    1,058
    Post Likes

    I would

    contact manufacturers tech service department and give them the model #'s of the equipment and total line length. That way you don't run the risk of voiding any warranties.

  3. #3
    Join Date
    Aug 2011
    Posts
    568
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    Confused

    Quote Originally Posted by hepservice View Post
    We're bidding to finish up a job started by another contractor. 1/4 x 1/2 lines are in the wall but owner wants a unit installed that calls for 1/4 x 3/8. Any experience on this? Feedback as to any consequences? We neck em on multi zone units but the line sets are correct so a concern about larger volume of 1/2" line. We've seen it servicing other "not our install" units too.
    listen to grep, when in doubt, call the mfg. it's callee C-Y-A,
    THOSE MAY BE THE MOST important 3 letters in life!

  4. #4
    Join Date
    Oct 2007
    Posts
    14
    Post Likes
    Ditto

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