With 40- to 60-ton capacity, an industrial packaged chiller product line comes standard with four variable-speed compressors that operate between 10 and 100 percent of rated capacity. Designed to complement Delta T Systems’ line of 1 to 30 ton chillers, the units operate more efficiently than fixed-speed, hot-gas-bypass chillers in the 40- to 60-ton range, according to the manufacturer.

Available as air-cooled or water-cooled models, the design applies variable-speed compressor technology from the HVAC industry to produce energy savings. Delta T Systems’ adaptive controls help ensure that the chiller system will continue to operate in the event of a problem and will not shut down completely.