I heard a great presentation by Ron Auvil on VAV systems, and it got me thinking… Can you size a commercial system/perform a block load by the number of occupants? Yes!  No, I'm just kidding. That's crazy talk. There is way more to it than that. However, in a commercial environment, while the building's perimeter […]

We keep two-pole, 40-amp 24v coil contactors on all of our vans. They are versatile and reliable, and you can replace most residential A/C contactors with them. There are a few things to watch for, though, especially when you have a crankcase heater. Many brands power the crankcase heater constantly and shut it on and […]

Remote Ice Machines Why would someone want to take an already complicated machine and make it even more complicated? The answer: human arrogance and engineer's hubris. (Just kidding.) Fortunately, thousands of these ice machines have been installed and serviced. Let's take a little overview of a few of the critical differences and things to consider […]