YDB 071.4-2011.Guide for energy saving technology of power supply and Room environment for telecommunications Part 4: Grade of energy efficiency of Air-conditioners.YDB 071.4规定了通信用空调设备的能效分级原则、空调设备的能效比限值、能效等级指标、试验方法、检验规则、能效等级标志等。
YDB 071.4适用于通信用空调设备,不适用于各类变频空调机。...................
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