I'm an HVAC guy here. Ran into one of my pumps that had its bearing fried. Took a closer look and it's a 10hp motor with 6 leads. My service guys typically deal with 9 lead motors. There are 3 diagrams on the motor itself, a "Starting", one named "Delta running". The leads were wired...
Anybody ever seen any references on how to size gas pressure regulator vents? We have boilers in the bowels of a large building that have regulators that need to be vented. We have medium pressure gas and using about 2500 CFH for each of 3 boilers. Any suggestions?
