Actually it’s an inverter generator, but no matter, it just means it’s a small, portable generator that has an inverter inside to help it create the appropriate voltage with a small quiet engine.
Most RV A/Cs require ~2500w to start the compressor and then only 1500 or so to run the unit after each compressor start.
So a 2200w generator may only put out a real world 1800 to 1900w and not be powerful enough to actually start and run the A/C. Be aware that you can purchase and install a soft start device to use less power at start up and likely find 2200w adequate.
Obviously, if you’re using 1500w to run thr A/C and the real world output of your generator is 1900w you do not have a ton of left over power capability available. Probably enough to watch TV but keep in mind the limits you’re dealing with
The problem with 3000w generators is their weight. Most are 80 to 100 or so pounds. Tough to lift in and out of the truck.
This is why many if not all 2200w generators can be paired with a second unit to provide twice the power at half the weight… but twice the cost, of course.
Like the famous line from Indiana Jones, “ Choose Wisely.”
2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad