... PumpMain Parts:1.Compressor: Semi-hermetic Screw Type, Brand Bitzer, Hanbell or Refcomp;2.Evaporator: High Efficiency Shell& ... unit such as cooling, heating, sanitary hot water separately or simultaneously. Wide application as hotel, apartment, villa, factory, ... cost thanks to reliable microprocessor system.8. For the units with semi-hermetic screw compressor, an infinitely variable capacity control ...