High efficiency freecooling chiller

Efficiency is the key word linked to this unit: two screw compressors with 3 steps of partialization each to better follow the cooling demand, EC fans to better follow the ambient variation, special condenser to reduce condensing temperature and integrated free-cooling coils to save energy using low ambient temperatures to cool down the water, shutting off the compressors. Moreover this unit can work from -30°C to +45°C.