... .High efficiency. Features:1) Adopt Hitachi compressor, high efficiency, low noise, less wearing and long life.2) Both Evaporator and ... display, showing the temperature of water in/out, the energy level of running compressor, on/off button, run time, alarm etc ... coil temperature for overload, or abnormal run condition.6. High&low pressure protection: It protects the compressor and system against extreme ...