My Newport has been sitting for the last 25 years without running.
For the hell of it....I depressed the schrader valve on the low pressure side and it still has Freon (R-12) in it. I have to admit.....I was giddy. If it ever stops raining on my day off I'll have to jump the low pressure switch and see if the compressor clutch kicks on. I'll be doing back flips if it does. LOL!