... operation Model Features:1 Employing original double SCREW compressor, Compressor may according loading auto-adjust, add level sensor ... GB151, TB/T4750-2003,operation safeSafety system:1 Compressor reverse protective 2 heat-exchance Fail Protecyive Lamp3 ... .2KW218282376420Capacity control %100,75,50,25,0Compressor Semi-hermetic screwQuantityW1Starting method Y-Crankcase heater 150Refrigerant oil SUNISO ...