Magnetic centrifugal chiller
Finalist in HVAC/R in Consulting-Specifying Engineer's 2011 Product of the Year competition
The Johnson Controls York Magnetic Centrifugal Chiller (YMC2) uses magnetic-bearing technology to produce a chiller that is 10% more efficient than conventional, variable-speed chillers. The product’s variable-speed drive has been improved, and the efficiency of the evaporator has been enhanced with “falling-film” design. An optimized centrifugal compressor can use low-temperature cooling-tower water to save energy. Magnetic-bearing technology eliminates nearly all driveline vibration, so the chiller operates at a maximum of 73 dBA at full-load standard conditions, per AHRI-575. The chiller has 57% fewer refrigerant-piping connections and uses refrigerant HFC-134a, which has zero ozone-depletion potential.
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