supply, installation, testing and commissioning of semihermatic water cooled screw chiller machine of capacity 120 tr at stage iii ggsstp rupnagar. , supply, installation, testing & commissioning of twin screw typewater cooled chillerof 120tr(variation ±6tr) with eco friendly refrigerant (cfc free r-134a), semi hermetic sealed compressor driven by suitable kw sq. cage induction motor complete with water cooled shell & tube condenser, insulated shell and tube flooded chiller with electronic expansion valves, flow switches at condenser & chiller outlet, refrigerant piping, refrigerant and oil (first change), digital control panel & accessories etc. all mounted on m.s frame motor shall be suitable for 415 volts ± 10%, 50hz ±3%, three phase a.c. supply as per technical specifications and other terms & conditions at cp-4