The HVACR industry is in the process of transitioning away from HFCs such as R-410A to alternative refrigerants that are mildly flammable (A2L). Because of their flammable nature, these refrigerants are referred to in terms that may not be familiar to contractors and technicians.

Recently, the Underwriters Laboratory (UL) has approved the second edition of its UL 60335-2-89 standard, which includes higher R-290 charge limits that would expand its potential uses in commercial refrigeration.

Refrigerant leaks in HVACR equipment – particularly commercial refrigeration systems -- are a significant problem.

Chiller OEMs have been preparing for a refrigerant phasedown, and they are identifying alternative refrigerants that are efficient, safe, and cost-effective.

Change is coming to the HVACR industry as state and federal regulations are being enacted that will lead to a phase down of high-GWP refrigerants such as R-410A.

The research was undertaken to develop training programs for firefighting personnel when responding to fires in occupancies with both new and existing refrigerants.

The refrigerant regulatory landscape is changing in the U.S., leaving many scrambling to figure out which lower-GWP solution will work best.

The refrigeration industry can and should continue to challenge itself to focus on what we know are important factors.