Unit description External units for the production of chilled water, with Free-Cooling function, fitted with hermetic Scroll compressors, axial fans, braze-welded plate exchanger and thermostat expansion valve in R410A. External panelling in peraluman and base in painted galvanised steel. NECS Free-Cooling, a must when demand is high throughout the year, also during the cold season, therefore. In fact, the greater the difference between the temperature of the chilled water and the temperature of the external air, the greater the advantage of free-cooling. Version B - Basic SL - super-low noise version Configurations - - basic function NG - function for free-cooling without use of glycole Features OUTSTANDING VERSATILITY The NECS FC units are available in two separate versions: B (basic), SL (super low noise) in order to fully satisfy special requirements and cope with the most complex installation solutions in both the Industrial Process and the Comfort sectors. ELEVATED ENERGY EFFICIENCY Thanks to the dedicated coils for Free-Cooling, the R-410A optimised scroll compressors and the R-410A refrigerant, the NECS FC units allow an average power saving of 30% compared with standard European consumption. MAXIMUM FLEXIBILITY Flexibility is achieved by the continuous modulation of the capacity provided by the compressors. The three-way modulating valve (optional) on the water side offers improved leaving water temperature control also at low outdoor temperatures.