多联式空调(热泵)机组新版能效标准解析

Analysis of new energy efficiency standards for multi-unit air conditioning(heat pump)units

简要介绍了多联机能效标准的修订背景、过程及修订原则。并对新版标准GB21454—2021《多联式空调(热泵)机组能效限定值及能效等级》的评价指标、测试组合、待机功率及电辅热测试等关键问题进行了解读,以帮助相关人员更好地理解和使用标准。

This paper mainly introduces the background,process and principles of the revision of GB 21454—2021,the new energy efficiency standard for multi-connected air conditioning(heat pump)units.The key factors of the new standard,such as evaluation index,test combination,standby power and electro-thermal test,are explained in order to help related personnel better understand the standard.