IEA HPT Annex 64 - Safety measures for flammable refrigerants

The international Annex will include investigations of a selected set of measures to limit the risks associated with using flammable refrigerants in heat pumps, AC-systems, refrigeration systems or similar based on the vapor compression cycle. The main focus will be on systems for heating/cooling or hot water production in single family buildings or for use in multifamily houses (up to 50 kW). The main focus will be on heat pumps placed indoors. It will also include risk assessments related to such use. The fluids considered could be hydrocarbons and synthetics. Safety issues during servicing and at the systems´ end of life will also be considered.