... devices for wrong direction, overheating,overloading, overhigh discharging temperature, overlower oil level, oil flow, and high ... regulation, effectively reduce energy consumption.-Compressor coil temperature protection; exhaust temperature protection; low oil levels; Hydraulic differential protection ... .2Power(KW)2127.734.746.3Applicable Room Temperature(°C)-5°C~5°CRefrigerantR22Power Supply380V/3P/ ...