Johnson Controls has increased the capacity of its York model YVAA aircooled, variable-speed, screw chiller to 350 tons.

Introduced earlier this year, the YVAA chiller features the industry’s highest energy efficiency ratio (EER) at both full-load design and off-design conditions for efficient operation at all operating conditions. On replacement projects, YVAA energy performance can exceed that of older chillers by as much as 50%, while performance on new projects can exceed other manufacturers’ chillers by up to 25%. The YVAA chiller offers flexible energy consumption: it can be configured to offer design efficiency up to 11.6 EER, and an integrated part load value (IPLV) up to 19.8 EER.