As an aside, the reason that it runs off of only 120V is because of the draw that A/C requires for cooling, combined with the length of time required for cooling. It is possible with a large enough inverter (converts 120V AC to 12V DC) to run your A/C. but it would suck your dual batteries down in very short order.
If you are boondocking most of the time, A/C does you no good, unless you are willing to run a gen set to use it. As we rarely are hooked to the grid, we opted to not install it for the time being, and have been okay without it even in hot climates, though there are a couple days we sure would have used it if we had it, but the Maxx Fan and an open window over our head sufficed quite well.
2017 Escape 5.0 TA (someday soon, I hope
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
“Most folks are about as happy as they make up their minds to be.” — Abraham Lincoln