Wednesday, July 27, 2016

New Mini Split - Is this sound normal?

Video of sound here: video I zoom out around 11 seconds and that gives a realistic sound of what it likes like about a foot away from the outdoor unit.

Hi everyone, I had a new multi-zone mini-split installed over the weekend. Everything has been working fine but when I went around the house this morning I could hear what I think is refrigerant running through the linesets. However, it had a slight hiss to it and I was worried about a leak. So I cut back the foam and doused the thing in soap--no bubbles found. I work in vacuum equipment so I borrowed a gauge and some fittings this afternoon and hooked into the gas line service valve. The coolant is running at 130 psi which is just over the manufacturer's suggestion (i think that manual said 115 - 120). Basically, I'm wondering if I am concerned over nothing or if there might actually be a problem. A "friend-of-a-friend" installed it and said this was normal when I texted him this morning. However, I wanted to reach out to the community here and see if anyone had some alternative thoughts.

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