CampinGramy wrote:
Does the coach have to be plugged into 30 amp outlet in order to run the AC?
Since everyone else has ignored your question I'll answer - better if you do have 30 amp service but it's not absolutely necessary. As long as the unloaded source voltage isn't much lower than the nominal standard of 120 vac, your main service cable is no longer than necessary and of the appropriate gauge, and everything else in the coach that runs on 120 vac is turned off (including the converter) then you
can power a typical 13,500 BTU roof mount A/C using 20 amp campsite service, even 15 amp. If your A/C is a larger 15,000 BTU model then you'd want at least 20 amp service.
These last few days we've had a heat wave here in the northeast, including S Ontario where I am, and as luck would have it my house A/C died. :M Although I
can power the trailer's A/C from a 15 amp drop in my workshop the resulting voltage drop does stress the A/C compressor so I instead made up an adapter dogbone so I could power the trailer from one leg of the house dryer circuit which is wired with a 30 amp breaker on each leg. Voltage drop with the A/C compressor running full tilt was
much less so it was under much less stress and so too were we until I was able to get the house A/C repaired. :B
