NA 044
DIN Standards Committee Refrigeration Technology
Draft standard
ISO/DIS 5222-3
ISO/DIS 5222-3
Heat recovery ventilators and energy recovery ventilators - Testing and calculating methods for seasonal performance factor - Part 3: Annual sensible heating and cooling recovery performance factor of heat recovery ventilators
Responsible national committee
NA 044-00-06 AA - Heat pumps with electrically driven compressors and air conditoners