Sorry, no wiring diagram.
Regarding garage clearance: the maxxaire that FWC uses now is roughly two inches taller when closed than the Fantastic Fan. Unfortunately for me that is enough of a difference that my new 3500hd/Grandby with stock 18” wheels and tires is about an inch too tall to fit in my 8 foot tall garage door. Love the MA fan, but wish I had the FF for clearance reasons. Luckily I have a barn with an 8’2” center aisle door height, so I can put it inside for weather and security.