I am down here in Texas, still hunting for my next bus... I see units like this from time to time:
Are these engine driven compressors? Or are they electrical?
I usually see what look like vents on the side of the bus, like this (same unit):
Does anyone have any info about them? I was thinking it might be straightforward enough to relocate the interior units if they weren't right where I wanted them. But it is a simple solution to AC while moving.