That is a very odd issue. Just a heads up. pioneer is junk, dont ever use anything other that Fujitsu, Mitsubishi or daikin. Cheap equipment is no good.
So to start things off. I've done hvac for about 10 years. Mainly service but some installs aswell. We very, very rarely install mini splits. But I've done them in the past for side work and what not. Install is obviously not the issue here. I'm curious on sizing and what others have ran. You...