WFGN Description Condenserless water chiller for indoor installation. Suitable for cooling only, for large-sized services in residential and commercial buildings. Cooling capacity: 121.00 ÷ 1565.40 kW Indoor installation R1234ze refrigerant R515B refrigerant (Option) Condenserless Twin screw compressor Shell and tube exchanger Lownoise version (Option) Network operation (Option) Compatible with ModBus protocol (Option) Internet connection (Option)