Generator size needed to start 11,000 BTU truck camper A/C?

So I bought a 1600 watt inverter Yamaha with 2000 watt surge. It would not start the A/C using a 110 outlet. Hoping the 220 outlet does the job. I had been running the AC off of grid power 110 so I "figured" it was about 12 amps ~ 1500 watts.
I'd just check but having some peculiar health issues. It is a 2012 Forest River Palomino truck camper rated at 11,000 BTU. FWIW - modern truck campers take a while to know your way around.
I'd just check but having some peculiar health issues. It is a 2012 Forest River Palomino truck camper rated at 11,000 BTU. FWIW - modern truck campers take a while to know your way around.
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In general, inverter generators, have poor surge performance (past rated value)... Plain Jane gensets will simply lug through a "heavy starting surge". An inverter-generator is "electronic" AC output and can shutdown in milliseconds and will not "lug" through heavy starting surges.
-Bill
If I can't make it work I can return it for a larger, cheaper and simpler unit that also accepts propane. Though propane is less energy dense and would lower the output by ~ 20% by my estimation. Shame in a way - I really like the inverter generator. Super quiet and seems well made. I just can't justify ten gensets. My others are too small or too heavy for truck camper usage.
https://www.costco.com/A-IPower-1600W-Running--2000W-Peak-Yamaha-Powered-Gas-Inverter-Generator.product.100343958.html
That twist lock connector is a 120 VAC 30 Amp unit intended for simple plugin to RVs that have 120 VAC / 30 Amp twist lock...
As far as I can tell, that is not a 240 VAC output on that genset.
-Bill
I am guessing it is in the NEMA L5-30P family...
https://www.amazon.com/L5-30P-Plug-NEMA-Locking-Amps/dp/B004XHWHHU
Besides RV, a lot of shops and construction use 120 VAC twist locks too.
-Bill
The Onan 3500 was made in China using a pretty good knock off of a Honda 2000 motor. Other problems presented and the partnership was terminated in favor of Yamaha. Tried to find my old thread about the Onan and lacked the technique to find and update. Least I did something.
Some would say that my campers 11,000 BTU air conditioner may have a 3000 watt start up surge though I doubt this is highly accurate.
The Honda's provided 120 volts AC:
Once the A/C cycled off the fan alone was drawing 2, 2.48 and 2.47 amps.
My unit is 11,000 BTU and I need to know how many watts will require to run on a generator. I searched the web and found the following technical information about my unit:
-->Electrical Rating: 115VAC/60hz/1PH
-->Compressor Loaded Amps: 9.5
-->Fan Motor Loaded Amps: 3.1
-->Compressor-locked rotor amps: 53.0
-->Fan motor-locked rotor amps: 8.8
According to the Honda website, click here, for an 11,000BTU unit, I need 1,600 starting watts and 1,010 running watts.
After playing with the Amps X Volts = Watts and Watts / Volts = Amps formulas, I can't come up with the same numbers, which is why I'm confused.
Based on my research, it seems to me like Honda generators are the king, however, I am also considering other manufacturers due to the cost of this investment. Size is also a big consideration because my Truck Camper doesn't have any storage big enough for a generator, so it will be mounted permanently outside and I want to keep it as small as possible.
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5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
Honda gensets are among the very best. If a user plans on racking up hundreds of hours of needed usage the Honda investment is likely to prove wise. Quality gensets are also attractive to thieves who tend to have discriminating tastes. Use locks as needed and plain covers instead of Honda covers.
they have some smaller units that can do bi-fuel https://www.championpowerequipment.com/product/100263-3400-watt-dual-fuel-inverter/#product-img-3
or if you want smaller and do a parallel setup
My Coleman once warmed up can easily draw 9.5 amps with fan on low speed…Something else to consider is that starting amperage can easily, momentarily be 5’ish times or so greater during each compressor run call…Because I’m in Nevada, I’ve since added a soft start to the air conditioner which (unlike a standard start cap) greatly reduces start-up voltage sag (a welcome attribute when in eco mode), and the damaging associated high current to motor windings which may shorten motor life…
To be sure I’d go with the 2200i (2000i is no longer in production)…