Wes Davis

Wes Davis

Company name: Air Conditioning Contractors of America (ACCA)
Position: Technical Services Director

Wes Davis serves as the Technical Services Director for ACCA. He manages the development and maintenance of ACCA’s American national standards and technical manuals. He oversees HVACR education and supervises Quality-Assured contractor accreditation.  He oversees the representation of HVAC contractor interests in the model code development process. He directs responses to ACCA member contractor inquiries, as well as those from consumers and code enforcement officials. Wes was a NATE-certified technician and a licensed South Carolina HVAC contractor. He also wrote Bob’s House, and he serves on ASHRAE technical committees and the RESNET’s Standards Management Board.

Tech Tips written:

It Has a Flat For a Reason
When tightening down a blower wheel or a fan blade on a motor shaft, ONLY tighten it on the flat of the shaft. That flat is machined into the shaft on purpose. It gives the set screw a face to bite into instead of a curve to slide off of. On most residential motors, it […]
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Motor Speed – The Basics
How does a typical single-phase motor know how fast to run? Typical induction motors depend on the electrical cycle rate of the incoming power (measured in hertz) for their speed. Our power in the US makes one complete rotation from positive electrical peak to positive peak 60 times per second, or 60hz (50hz, or 50 […]
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Understanding Relays With the 90-340
Relays can be used for many different control applications, including controlling fans, blowers, other relays, contactors, valves, dampers, pumps, and much more. A 90-340 is a very common, versatile relay that many techs have on their truck, so we will use it as an example. A relay is just a remotely controlled switch that opens […]
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