Designed to complement the company’s line of 1 to 30 ton chillers, VS Series is supplied with four variable-speed compressors that operate effectively between 10 percent and 100 percent of rated capacity. Available as air- or water-cooled models, the variable-speed chiller utilizes compressor technology from the HVAC industry to produce energy savings over traditional hot gas bypass regulation. Other features include the elimination of vintage limit switches and capillary tubes to optimize reliability. Also, VFD technology allows for soft starts and less compressor cycling, and adaptive controls help ensure that the chiller system will continue to operate in the event of a problem and will not shut down completely.

Delta T Systems