Maniac, do you control the temperature in the pump room?
I went with a similar approach, but I had my compressor in the same room, and even after installing an exhaust fan, AND the heat exhaust was ducted up out of the building, I had sustained temps over 100 degrees, and began noticing premature fan belt failure on new compressor, as well as clues the compressor motor was also suffering in that heat...
Besides 2 additional fans in that room, I also knocked out half a wall and gave in to the noise, to bring the heat down. (at least it's on the second floor, so not bad when I'm down on the first with the Multicam... Now the tool in the material is usually the loudest sound...