[Chuck v]

Victor,

I noticed that you called the park outlet a "30 amp" socket and wanted to point out it is a 50 amp RV connection on your coach in case that 30 was not a typo.

An RV 30 amp 3 prong service is a single leg of 30 amps for a maximum of 3600 watts of power, whereas the 50 amp RV service is TWO LEGS of 50 amps each for a total power capability of 12,000 watts.

When you use a 30 amp 'dog-bone' adapter to allow a coach like your to connect to a 30 amp RV service it internally bridges the two legs so they each get some power, but the 30 amp breaker limits everything to a total of 3600 watts -- and under that arrangement you likely can not run both air conditioners, for example.

When your coach is running on the on-board generator which is 7,500 watts then each leg of the service is fed from the 35 amp per leg breaker on that generator and both air conditioners should run fine in that case.

As you likely know by now, the Inverter is limited to 2000 watts and it has a secondary transfer switch built in such that if neither shore power nor generator power is available it can run a selected number of loads...most notably the residential refrigerator and the TV. To keep things sorted out on the AC load side of the coach wiring, there are two breaker panels under the refrigerator -- one has the larger loads that only the generator and the shore power can handle like the air conditioners, the engine block heater, etc. and then a secondary panel that supplies the refrigerator, TV and a few convenience outlets that can remain powered when only the inverter is active.

Chuck