Back when the (now demolished) power plant was active at Danvers State Hospital. It was still required to run the Hogan Regional Center until independent boilers were installed there. A tunnel connected it to the kirk at the top of the hill.
Hands down best service call of the year.
I specialize in farm / ag refrigeration, and got a call from the county fair because the bulk tank wasn't cooling. It's definitely the oldest operating OE I've had the chance to work on. Open drive and still chugging away. Unlike most dairy farms, this system only operates for a few days a year-- during the fair. Even dairy show cows still need 2x day milking.
The tip was free admission, ride pass, and I got to pull my service van into the fair to park. I told my wife to come, and they ran out to pick her up in a golf cart at the staff gate.
I know I'm getting old now, because I can't do those fucking spinny rides anymore. Even riding the Pharaoh ship was intense.
Fixed a leaky service valve, cleaned the condenser coil, and charged back up with my stash of MP39-- then did all the usual shit.
Happy wife, happy life.
Working on an old De Laval (now Alfa Laval) bulk tank. R22. Killing some time while it pulls some water down to temp, then adjust charge and superheat.
Small leak on TXV to tank joint. A little bit of orange rod and it's back in service. Did a purging braze after pumping it down to 1 psi. No nitro, no vacuum. Just a recovery tank in an ice bath to make a pressure differential so the braze can't blow out. It doesn't work in all situations, but it was perfect for this one. The leak was right after a tee with an access port. Best method? No. Good enough for farm equipment on borrowed time? Absolutely.
Replaced a failed condenser from the 70's. Will replace the other when it also fails. Didn't take any progress photos, unfortunately.
First time I've installed a TQ condenser. Still not sure how I feel about it-- I like the TE line better. Had to use a TQ to qualify for an efficiency rebate.
I have a lot of fun when I'm not just butting prefab panels together. R448A MT unit.
This unit took the place of an old 8HP semiherm dinosaur when the cooler used to be 2.5x the size-- now turned into retail display for a farm store expansion.
System is going to be replaced, but needed a patch to get them by for a few weeks while the special order stuff is built. Not the prettiest thing I've done, but it holds pressure.
Going with gold plated / stainless pan versus the marine epoxy coated garbage that failed here. There's almost no actual aluminum fins left on this unit, just an epoxy shell.
Cheese caves are very corrosive.
Farm / ag refrigeration life.