Originally Posted by Cubey
Perhaps the efficiency is why they don't bother with them. They would freeze up badly too eventually. Think about how RV fridges are not frost free. They eventually ice up badly and you have to shut it down and defrost it. And it would take hours to get it putting out cold air again.
I am not an AC expert, but I think that the systems can be designed to work at different temps, so an AC would be at a higher temp and be similar to a compressor unit when it comes to freezeups. That absorption AC I had in my old house did not freeze up. Frigs are only frost free because the go back through the evaporator with heat, to melt the ice, periodically. It has nothing to do with the temps in the unit, as far as I know.
I guess the whole point would be to see if getting rid of the generator would be worth the switch to an absorption AC unit.