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.

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Tech Tips written:

Does Air or Nitrogen Absorb Water?
There are many examples of teaching using metaphors to help someone grasp how something works without being EXACTLY correct. Some examples are how we often use water flow to explain electrical flow or refrigerant circuit dynamics. It's enough like the way it works to get our heads wrapped around it, but there are many differences. […]
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Why A/C Systems Freeze
Let's start with the basics. Water freezes at 32° Fahrenheit (0° Celsius) at sea level and at atmospheric pressure. When any surface is below that temperature, and the air around it contains moisture, ice/frost will form. You can see how water freezes at the molecular level in the GIF below:   In some situations, ice […]
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Living in a World of Acids (and why HVAC coils are secretly crying for help)
Imagine a small IT room packed with servers, monitors, and humans. CO₂ levels easily spike to over 3000 PPM since the room lacks fresh air ventilation. Two overworked mini-split units churn away, cooling the space and unknowingly creating the perfect acidic environment. Fast forward a few months, and those shiny coils now resemble something pulled […]
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