NYG 1000 / 1800 Description Air/Water chillers for outdoor installation, with Free-Cooling. Suitable for air conditioning of medium-large services in residential-commercial and industrial buildings. Cooling capacity: 86.7 ÷ 142.0 ton (Cooling capacity: 304.90 ÷ 499.30 kW) Free-Cooling capacity: 56.3 ÷ 93.4 ton (Free-Cooling capacity: 198.10 ÷ 328.50 kW) Outdoor installation R454B refrigerant Free-Cooling Scroll compressor Axial fan Plate exchanger Heat recovery (Option) Pump kit (Option) Water tank (Option) Lownoise version (Option) Night mode (Option) Network operation (Option) Compatible with ModBus protocol (Option) Internet connection (Option) For two pipes plants