What refrigerant is being phased out due to environmental concerns?

The refrigerant being phased out due to environmental concerns is R-22. This compound, which is a hydrochlorofluorocarbon (HCFC), has been identified as contributing to ozone layer depletion and has a high global warming potential compared to newer alternatives. The phase-out process began in the late 2000s as part of international agreements, such as the Montreal Protocol, aimed at reducing substances that deplete the ozone layer.

In 2010, the production of R-22 was significantly limited, and by 2020, it was banned for use in most new equipment. Consequently, stakeholders in the HVAC industry are encouraged to transition to more environmentally friendly refrigerants, such as R-410A or R-32, which have a lower potential for ozone depletion and global warming. Understanding the environmental impact of refrigerants like R-22 is crucial for technicians and engineers in order to comply with regulatory standards and to promote sustainable practices in HVAC systems.