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Is Direct Fired with Cooling Safe?

Is Direct Fired with Cooling Safe?

Hey folks, It comes up, from time to time, the question about using direct fired equipment with DX cooling, and taking in account the flammability of the new refrigerants. Here’s the answer from AbsolutAire. “The purpose of this Letter is to outline AbsolutAire...
What’s On the Agenda For Tomorrow’s Fan Class

What’s On the Agenda For Tomorrow’s Fan Class

Gotta tell you, some fan classes are pretty boring. I’ve watched trainer after trainer point out what a good and bad curve looks like. They talk about fan wheels and what each is good at. Caleb and I assume you know when to pick a prop instead of a centrifugal. This...
The Indirect Cost of Direct Drive Fans

The Indirect Cost of Direct Drive Fans

If you could have a car without a timing belt, that would be nice, right? That’s an expensive bill every few years that we all would prefer to avoid. The same applies to fans. Eliminating belts is a real time and cost saver. The fan above looks innocent enough, right?...