30 amp will run only one air conditioner
30 amp will only run one air conditionerat a time. Choose which one with the selector switch above the microwave. If you want to run both you have two choices: 1) run the generator with the selector switch set to front air. 2) plug into shore power, set the selector switch to front, and run the generator for the rear unit. Sounds crazy, I know but that is the way it is done.
There is a way around it, but it involves putting a plug in for the rear air conditioner and wiring an outlet for that side of the generator that normally powers it. That way you can plug the 30 am plug in to shore power, and run a seperate cord to to another power suppy to power the rear air.