The capacity of York Model YVAA has been increased to 350 tons. The chiller has the highest energy efficiency ratio (EER) at both full-load design and off-design conditions, according to the manufacturer, for efficient operation at all operating conditions. On replacement projects, its energy performance can exceed that of older chillers by as much as 50 percent, says the company. It uses HFC-134a refrigerant, which has no phase-out date and an ozone-depletion potential of zero. Fewer joints and potential leak points keep the refrigerant inside the system.

Johnson Controls, (414) 524-1200

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