Inadvertent trap in minisplit line set?
I’m finishing the installation of my mini split line sets and realized I may have introduce a “trap” into the line set due to the way I had to route it.
The main line set runs from the compressor to the branch box in the attic. From the branch box, the line sets run down into one stud bay, in a 180 degree bend, through a stud, and pointing back up into another stud bay. This 180 degree bend is my concern.
This was ran like this for multiple reasons. One, I have slab on grade construction where 4/5 heads were installed so I have to run the linesets from the top down. The mini splits are also mounted 8″ from the top of the wall in 3 areas so I would have to bend the line set up and have to ensure it was cut low enough so the flared connection wasn’t in the double top plate. Instead of this I just routed it out slightly then down with the condensate drain.
Would a vertical U shaped loop between the head and branch box cause any issues?
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