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Trane has introduced the newest addition to its air-cooled chiller product portfolio, the Trane Stealth™ air-cooled chiller. Available in the 150- to 300-ton capacity range, Stealth air-cooled chillers deliver a combination of part-load and full-load efficiencies along with extremely low sound levels. At the core of the Stealth chiller’s performance is AdaptiSpeed™ technology – the integration of a direct-drive, specific-speed screw compressor, permanent-magnet motors, and third-generation Trane Adaptive Frequency™ Drives. The chiller’s compressor design delivers peak efficiency under all operating conditions, according to the manufacturer. As a result, the Stealth air-cooled chiller is capable of up to12.1 energy efficiency ratio. The design also delivers up to 20 integrated part-load value (IPLV) to drive lower overall electrical consumption and ensure energy savings across typical operating conditions. Additionally, the new compact, high-performance, integrated, low-charge (CHIL) evaporator technology optimizes refrigerant flow for improved efficiency and better heat transfer performance, while using up to 40% less refrigerant than traditional flooded designs. Quiet operation is designed into every Stealth air-cooled chiller as standard, along with two optional InvisiSound™ acoustic reduction treatments available to meet specific application needs.