Low Noise Heat Pump Water Heater 1,R404A,work at -20~40C 2,noise:<55Db,cop: ... 3,voltage:380 to 460v,50/60hz,3ph Low Noise Heat Pump Water HeaterTechnical parameters:MD200DRated input power: 18.4kwHeating capacity ... , breeding farm, and so on, to supply bathing water or heat house. Have been tested and desighed in accordance with Europen ...