Product features: * Unit with heating only, heating+cooling or cooling only are all available. * Both direct heating or circulation heating available for option, hot water temperature up to 60°C, various applications. * World famous electroinc expansion valve, adjust the refrigerant automatically and precisely. * Adopt Tube-In-Shell heat exchanger, heating performance more sufficient. * Able to connect to pressurized water tank, closed water system, solar system, diverse installations. * Apply Japanese brand compressor, and digital advanced LCD display wire control panel, good quality and convenient. * Insufficient water flow protection & compressor high/low pressure protection. High efficiency:it collects the heat from the air and the electricity is only used to drive the compressor to pump up the heat from the air. Therefore, to make the same volume of hot water,its electricity consumption is only about 25% of the original electric water heater. All-weather use: it is not affected by the windy, rainy and snowy weather Item SG-S100SG-S150SG-S200Rated Water Temperature28(oC)28(oC)28(oC)Rated Water Yield345051756900Power Supply380 3N/50Heating Capacity52.278.3104.4Rated Interiorinput Power913.518Max Interiorinput Power121824Rated Input Currenton1725.534Max Input Currenton213040Max Water Temperature60Pipe Dimension1.5Noises(dB(A))≤54≤56≤60Rated Hydraulic Pressure0.6 1MpaEarthing≤10ΩWorking Enviroment-5 45(oC)