We just purchased a 2008 Revolution LE with 3 AC units.The front two AC's operate off 120, 240 and 480 volt.., but the bedroom AC (#3) works only off 480 V, which defies common sense, as most RV hookups are 240v, 30 amp, and most of us sleep in the bedroom! Has anyone come up with a solution that will allow the #3 to run off the 120/240v power, and perhaps have the #2 set up for 480v only, since #1 and #2 cool the same space?