... compressor we are manufacture with R&D center CE,TUV,EMC,ISO, green ,energy-saving,economical Air to water heat pump --for hot water ... water temp.( deg.C): 55~60Advantages:1.Copeland with R417a or Daikin with R410a scroll compressor2.Emerson ALCO thermal expansion valve ... -Mg fan motor with Nylon fan blades,low noise,low power consumption4.Deron high efficiency Tube in tube heat exchangers,low fouling ...