First post here! I'm in a HVAC-R college program - 1st term, tech school.
First I want to thank you guys for all the good info & debates (tips & tricks-rocks). I'm getting an "edge" in class for sure. I'm work as a lab tech. (min. wage-do-it guy!) on campus for the program while in school. They get a lot of old & new A/C units, furnaces, walk-ins, etc. donated. They have about 20 a/c units in the lab, and about 50+ stashed behind the building! How do I get spec for these? Most diagrams are weathered away and unreadable. Can I just write the manufacturers? Mostly, wiring is the big concern. They even have a unit from China. That's a whole different problem!