ARLINGTON, Va. - The Air Conditioning Contractors of America (ACCA) added a new course for commercial contractors to its fall schedule. "The Fundamentals of Commercial Load Calculation and System ...

This is part 1 in an ongoing series on HVAC load calculations. The folks at SNIPS have asked me to do a basic how-to article about HVAC Manual J load calculation as that is allegedly a big part of my ...

In Part 1, we looked at specific types of commercial loads. Let’s use some examples to show yet another difference in demand factors. If you were to watch daily operations at a marina [555.12], you’d ...

Based on the 2020 National Electrical Code. Part 1 of this two-part series taught you how to calculate branch-circuit loads. Now let's review how to perform feeder and service load calculations.