Thanks for all the great input! The current unit is not connected to the panel, but I'd like to do so. Having both still connected is an interesting option. I had wondered if there would be any problem with turn the unit upside down like that. Glad to see the picture!
My husband thinks it could go in the basement -- which would be better. I only worried about it getting banged about since the locker has a lot of "stuff" in it already. It would sure be the best option, if possible. Just have to take AC from the bedroom. Which is preferable to drilling a hole through the bedroom floor (and the noise problem).
Roy, thanks for the great diagram! I had feared that changing the wire would be difficult, but it appears ours is all in conduit under the trailer, so I suspect it will be easy. Yes?
I'm somewhat confused about the fuse situation on the battery. Is this the disaster fuse I've read about? Is it just an inline fuse?
Thanks again.