Abstract: Due to the strict testing requirements for air conditioners exported to the EU, the seasonal energy efficiency testing method of frequency conversion splitters exported to the EU is discussed and analyzed. Through S-A analysis and testing method, it can be concluded that the seasonal energy efficiency affected by each working condition of refrigeration is C>B>D>A, and that the seasonal energy efficiency affected by each working condition of heating average temperature zone is B>C>A>D>E. Standby power and reaching temperature shutdown power have great influence on the seasonal energy efficiency of refrigeration, and the smaller the control power can be realized through electronic control function. The research results will provide readers with a complete set of European Union seasonal energy efficiency testing methods and a complete debugging idea for product development, so that the performance of air conditioners can be fully utilized and the minimum configuration and optimal energy efficiency of air conditioners can be achieved.

Key words: EU seasonal energy efficiency, Test method, Minimum configuration