Thor Forums

[Chance]

Originally Posted by wdconnors

Fridge and water heater would run on propane.


Where can I find the surge of the units? Locked rotor amps says 58.4, but I'm guessing that's not calculated the same since 58.4 x 115V would be over 6,000 watts.

Locked Rotor Amps is 41.5 for the 11,000 Power Saver. Not certain if this is latest info, so I’d double check.

http://old.rvcomfort.com/rvp/pdf_doc...data_sheet.pdf



And yes, it does take momentarily (a second or two???) that much current to start the air conditioner. You never want to start both at once, which is why I suggested “base loading” the larger one so it doesn’t cycle on a regular basis unless it’s working alone (when smaller one isn’t needed at all).

We did this in industry all the time. A large 400 HP A/C compressor would run base-loaded all the time, and we’d use smaller 100 HP to balance compressors to load. Our compressors could also run at partial capacity, but you get the idea.

Anyway, if you have your present A/C running at about 12 Amps or so, starting the smaller A/C at 41.5 LRA may work OK because Onan 4,000-Watt generators used to start old 15,000 BTU/hr A/Cs which often required over 80 LRA.