MINNEAPOLIS, March 24, 2020 /PRNewswire/ – Daikin today introduced an integrated water-side economizer (WSE) for its Pathfinder® Air-cooled Screw Chiller. The WSE, providing what is commonly known as “free cooling,” uses outdoor air to naturally cool water and other process fluids, reducing compressor work and increasing chiller efficiency. The Pathfinder with Free Cooling also operates without needing water from a cooling tower. This drastically cuts water use, as well as costs for water, sewer and chemical treatment. “Water availability is starting to become a widespread problem,” said Hugh Hudson, data center market manager, Daikin Applied. “For many organizations, water conservation is part of their sustainability efforts. And some facilities are in areas with water restrictions. By omitting a cooling tower or evaporative cooling system, free-cooling chillers put less stress on municipal infrastructure and the environment.” Most free-cooling systems require two separate pieces of equipment, a chiller and dry cooler, along with a layer of controls for coordination. By adding an on-board economizer to the Pathfinder, both tuned at the ...