Home / Standards / GB 19577-2024 GB 19577-2024 Active Minimum allowable values of the energy efficiency and energy efficiency grades for heat pumps and water chillers 热泵和冷水机组能效限定值及能效等级 Standard Type GB ICS 27.010 CCS F01 Status 现行 Issue Date 2024-04-29 Implementation 2025-02-01 Responsible Dept 国家标准委 Drafting Unit N/A