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:

Why the New Guy Gets Fewer Callbacks
I was going through a recorded service meeting with the Kalos techs, and Bert shared something that has been rattling around in my head ever since. His team went digging through their callback data looking for patterns, and after stepping back and looking at it, one showed up that nobody expected: The newer techs were […]
Read more
Why is 240V called “Single-Phase”?
Why is it called single-phase 240 when there are two opposing phases (or legs)? I wondered why we called two 120v opposing legs “single-phase 240” for years. Then someone pointed out to me that a typical “single-phase” pole transformer only has one power leg entering and two coming out. That freaked me out. How can […]
Read more
Flowing Nitrogen? Make Sure You Purged First
Flowing nitrogen while brazing does not mean the air was cleared first. Learn how to purge large ACR piping, choose a practical regulator setup, and estimate time and cylinder use.
Read more

Event speaker:

Video guest:

The HVAC School site, podcast, and tech tips are
made possible by generous support from