This phasedown will decrease the production and import of HFCs in the United States by 85% over the next 15 years. 

What are engineers making time to read? Here is the five-item punch list of the most popular news articles, features, and columns at ESmagazine.com.

For new residential and light commercial central air conditioning equipment, the AHRI petition seeks a regulation requiring that equipment manufacturers use refrigerants with a global warming potential (GWP) of 750 or less in equipment made after Jan. 1, 2025, with the exception of variable refrigerant flow (VRF) equipment, whose deadline would be Jan. 1, 2026.

The potential for CARB’s GWP limits and implementation dates to align with the EPA’s sector-based controls under the AIM Act create an environment in which a de facto nationwide HFC regulatory framework could actually emerge.

Most often, leaks are the result from improper installation, factory defects, mechanical wear from vibration, or physical damage.