Not meant to be, I generally say what I mean. Sorry for throwing you off.
It's my same sentiment of being distrustful of vendors and manufacturers, who seem to more and more these days trying to squirm out of warranty coverage by demonstrating something not in line with their manual. So as consumers, we just have to be mindful of being in a strong position if a claim is ever needed.
I've hung heaters from ceilings and they sure as heck get tilted as you wrestle them up onto lifts or scaffold and into place! So it seemed a bit funny to me. If it's a heat pump, I can comprehend the issue, but that would be more about letting it sit overnight, level, before starting, and not letting it go upside down or even close to 90 degrees from horizontal, but I wouldn't hesitate to put it on a hand truck.
No offense intended, by any means.