Wavesprite wrote:
My husband took off the fan coverplate and can see the wiring in there, so it looks like a simple job of removing the old fan, and dropping in the AC and plugging it in.
There's more to it than that ... if the PO replaced the original A/C with a powered vent fan then logically that fan would be 12 vdc, not 120 vac, in which case that wiring you see running to the fan wouldn't be any good to you. You really need to take a closer look and identify which wires are the 120 vac feed originally used to power the A/C and which
might be 12 vdc.
FWIW, I'd agree with an earlier poster - since you're installing a new A/C consider a Coleman Mach PS model which will draw less current than a conventional 13.5K BTU A/C and therefore better your chances of running it with a 2K genset like the Honda EU2000i, should that need ever arise.