... Heat Pump 1,R410A/R22,work at -15~40C 2,Noise:<65Db,cop:4.5 3,Intelligent defrost 4,Air to water heat pump ... Low Noise Heat Pump Technical parameters:MD200DRated input power: 18.4kwHeating capacity: 72kwVoltage ... be used at hotel, factory, hospital, villa, breeding farm, and so on, to supply bathing water or heat house. Have been tested ...