Hi. I also have a 2011 Chapperal so suspect the same 15k AirCond. I suspect your 10 amp reading is more likely running amps not startup amps. I never measured it but tried mine on a 3200watt surge/2800watt contineous generator and it will barely start it. I have the dual Honda setup as well and the twins run the AC just fine. I have never tried it with one and based on the other generator won't even try it
I have heard of some people being able to start and run a 13.5K AC with a single honda 2k with modifications to the start circuitry but never a 15k
