Description: York YD model “C” dual compressor centrifugal chillers from Johnson Controls are now available with Optispeed variable-speed drives (VSD) and an expanded capacity range of 1,500–6,000 ton (5,300–21,000 kW). In addition, the unit-mounted low-voltage VSD nearly doubles the chiller range in several regional markets to meet more facility requirements. At AHRI conditions (460v/60Hz), the YD model “C” provides up to 3,000 ton (10,550 kW) of cooling. YD chillers utilize two York centrifugal compressors operating in parallel on a common set of heat exchanger shells to obtain large chiller capacities and efficient part-load operation. The chiller is ideal for retrofit applications where large amounts of cooling are required in a small space. This remains true with the addition of the Optispeed VSD.

Contact: 414-524-1200; www.johnsoncontrols.com

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