Fujitsu cieling cassette install.

So this is where my current install is for one of my ceiling cassettes on a 5 unit Fujitsu install. Should I expect additional framing here? Is that rafter/joist they cut part of my ceiling/roof trussing. Basically how bad have they screwed up and....Can someone provide me some pictures of a proper install?

if i was doing this i would definitely frame out the opening for a more secure install. seeing as so far all they did was cut the hole and run the threaded rod can't comment on anything until its much further along. for all we/you know when the come back to start working again they finish framing and put the unit in. the board they cut was most likely just a support for the dry wall but i don't know the architecture of your house so its impossible to say for sure

The joists do more than hold up the ceiling drywall. They keep the walls from spreading. If one has to be cut the tension has to be taken up by the adjacent joists. You need something like a pair of 2 x 10 laying on the flat, perpendicular to the joists and securely fastened to 2 adjacent joists on either side of the cut.

You're asking the wrong people. If you are concerned then you need to get a structural engineer involved now!!!!

Cutting one chord for a unit is sketchy regardless of what they have in mind for framing it. But they are going to do this five times?!

My personal experience with those things, do everything possible to avoid them, those coils for whatever reason have higher chances of failure than the wall mounts. Ive done two that had nothing but issues, both indoor coils needed to be replaced. This was roughly 2years ago so i hope they've done something to correct it... Never had an issue with wall mounts though oddly enough...

Op, make sure they have some kind of access to the unit, i cant tell if the space above is crawl space or attic... I'm willing to bet they'll be working on it down the road...

Anyone ever look into "ant nesting" in copper production plants? Both of our coils leaked at the bend on the factory made coil, no joints one solid peice... We didnt realize untill the unit started pouring water into the room, the rubber drain plug in the Styrofoam body shrunk after refrigeant oil leaked into the drain pan...