I had one of those 5000 watt construction type generators, a Campbell Hausfield. It would NOT run the Coleman A/C on my coach. The voltage would drop down to 98 volts and trip the breaker in the A/S. I now have a Generac 7500 watt genset with the 30 amp 120 outlet and it works great.
2003 GMC 2500HD 4X4 D/A Ext. Cab
Propane Powered Honda EU2000i
Lots of Hot Sauce!
Air # 283