... famous brand compressor,4-way valve,motor,PCB,heat exchanger,Emerson ALCO expansion valve used to ensure top ... R410a,R417A,R134A are for optional. Commercial type heat pump(High Temp.)ParametersModelDBT85.0WHHeating CapacitykW85.0Heating power ... °C80CompressorTypeScroll (COPELAND or Sanyo)Water side heat exchanger TypeTube-Tube typeAir side heat exchanger TypeHigh efficiency copper tube(Interior Screw) ...