R152a is a pure hydrofluorocarbon (HFC), which is used in a wide range of applications as a replacement for R134a, as it features significantly lower GWP (124) and zero ODP. It is also a lower-flammability refrigerant (Safety Class A2) and used in applications for chiller systems and general air-conditioning systems as well as medium/high temperature cooling systems.
By using R152a as a replacement for R134a the refrigeration load is approximately 30% lower, which involves significantly lower GWP for the equipment.
Furthermore, R152a is also being applied to some new refrigerant gas blends, such as R410a.