I have a 2011 Fleetwood Terra class A. It came with 2 ac units on a 30amp platform. The wiring has not been changed (best I can tell) and the 20amp breaker on the generator goes nowhere. I figured this out by removing the metal cover on the 120 volt junction box at the generator. Only the 30 amp lead from the generator is connected to the coach wiring. Then it goes back to the transfer switch and then to the converter and a/c units.
I'm planning on converting the coach to 50amp and upgrading the transfer switch, converter, power plug and associated wire runs.
I've had good luck working both ac units on 30amps from the genny or shore, but have to limit other loads while both are working. I did find out I have a mach 1 and mach 3 power saver units.
2011 Fleetwood Terra 34DS