The NSM-HWT chillers are for outdoor installation for the production of chilled water at elevated temperatures, the perfect solution for data centre applications where maximizing free cooling is essential to reduce the buildings PUE value. Built with high-efficiency screw compressors, with cooling capacity adjustment via continuous modulation. Axial fans, microchannel external coils, plant side shell and tube heat exchanger. In the units (with desuperheater or total recovery) there is also the possibility of producing hot water for free. The base, the structure and the panels are made of steel treated with rustproof polyester paint. Extremely reliable and flexible units which perfectly adapt themselves to all thermal load requests thanks to inverter technology, with high energy efficiencies both at full and partial load.