Originally Posted by jfremstad
My 1971 Ambassador has original A/C. It is an Armstrong TR21-12 CWD17 model.
I see from various threads that it can possibly be recharged. Does anyone have a diagram or picture of where to refill? Would an A/C guy know where to refill? I took the shroud off and found a spot that sort of looks like tire valve. Is that where the refrigerant goes? I have no intention of doing this myself, but I would like to point the service person in the right direction . . . . .
IIRC, you might have R-22 in your Armstrong. If that is the case, any competent
A/C service tech (not the RV tech type) can re-charge your unit.