FEATURES
About the power type:
European standard single-phase power (EU1): 220v/1ph/50hz
European standard three-phase power(EU3): 400v/3ph/50hz.60hz
American standard single-phase power supply(US1): 220v/1ph/60hz
American standard three-phase power supply(US3):220v/3ph/60hz
SEMI: Semi-hermetic compressor which has more powerful performance.