... , easy to install and operation Water Source Heat Pump Screw Chiller Model : RO-40WD1,Cooling Capacity(KW/h):120-1332,Heating Capacity( KW /h ... Control:Expansion Valve8,Refrigrent : R134A9,Condenser:Shell and Tubes10,Evaporator,Heat Recovery System:Shell and Tubes11,Cold Water Flow(m3/h ... to use, automatically control, easy to install and operate Water Source Heat Pump Screw Chiller