Home / Standards / GB 37480-2019 GB 37480-2019 Abolished Minimum allowable values of energy efficiency and energy efficiency grades for low ambient temperature air source heat pumps(water chiller) packages 低环境温度空气源热泵(冷水)机组能效限定值及能效等级 Standard Type GB ICS 27.010 CCS F01 Status 废止 Issue Date 2019-04-04 Implementation 2020-11-01 Responsible Dept 国家标准委 Drafting Unit N/A