A2L refrigerants are the latest refrigerants recognized by the U.S. Environmental Protection Agency and Significant New Alternatives Policy (SNAP) as substitutes in residential and light commercial air conditioning and heat pump systems.
These next-generation refrigerants have lower toxicity and flammability than other classifications of flammable refrigerants, making A2Ls the second-safest category for all refrigerants. Keeping up with code changes is integral to ensuring safe and efficient practices for industry professionals. Given the ongoing EPA-mandated phasedown of HFC refrigerants, there is an increasing demand to switch to A2L refrigerants, and it is becoming more important for industry professionals to anticipate upcoming code changes and understand the rationale behind them.