... in Summer and Sanitary Hot WaterMain Parts:1.Compressor:Hermetic Scroll Type, Brand Copeland, Danfoss etc.;2. ... on the demand, preparation for free hot water;Compressor: adopting world famous brand semi-closed screw-type ... water, oil, antifreeze switch, high temperature protectionCompressorTypeclosed scroll compressor(American Copeland,Germany Bizter, Danmark Danfoss eetc.)RefrigerantEnvironmental ...