Parts arrived, machine chopped up and put back together. Gas'd 'er up last night, and I've got frosty goodness. Next step, drag the beast outside and get it plumbed into my hydronic system and controlled by the PLC.
You know what's been a challenge? Living out in the sticks, and getting ACR fittings. The hardware store has ACR sized soft copper, but that's it. I can't find a fair priced online retailer for ACR fittings that will ship to Canada.
Swedge punches have been useful to make coupling. Having all sizes of ACR pipe on hand from 1/4 to 3/4 is also useful as you can telescope them to change sizes.
I've been using Stay Brite 8 for soldering, because you can do it with a little MAP torch and you don't need to run nitrogen. On the other hand, it requires tight fit up. Brazing with Silfos would be better here I think.
In the picture, all the fittings were rare dusty finds at the hardware store--not normally stocked. Found some 1/4 90s--nice!
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