tmitchell,one air conditioner is standard,two is optional,and no they( the factory ) don't put a larger capacity air conditioner on when you only order one,one may not do the job of cooling the coach down because it is probably centered on the roof so that it can try to cool both front, middle and rear of the coach.
02 Newmar Mountain Aire · Workhorse W22 · w/22.5s
01 Jeep GCL