Probably more...
A church I have been taking care of for 30 years or so called me about one of the 20 ton A/C units. The Pastor they had for 2 years is gone suddenly for some reason, he used another HVAC guy. The secretary said this unit has been down all summer. No voltage to the thermostat, I fixed the wiring someone messed up, got power to the thermostat (it is very complex and confusing) then found the whole system completely out of refrigerant. I found the leak: electrical feed-through terminals... not good. Called York...no parts available,
So, I took it all apart and fixed it. Pulled out all the tricks in my musty trick-bag. Pulled a vacuum on it today, as tight as new shoes. I will charge it tomorrow, worked on it all day today.
Pictures and slide show for you gear-heads out there.
Only problem is that I screwed myself out of a $5,000 profit on the job. Most repair guys would have sold them a new system.
Hey.. it's a church...
Slide-show:
https://picasaweb.google.com/Jimsue13/20120711PHCCCompressor?authuser=0&feat=directlink
Leaking under all this stuff....
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