Variable-speed screw chiller

03 May, 2012

The York YVWA water-cooled screw chiller from Johnson Controls uses energy-saving variable-speed technology to help cut energy costs and carbon emissions by as much as 25%. The variable-speed drive saves energy during the 97% of operating hours at off-peak conditions, when building loads and/or water-tower temperatures are lower. As a result, these chillers deliver an integrated part-load valve as much as 30% better than traditional screw chillers.

The refrigerant is R134a, and the design of these chillers reduces the number of potential leak points by 35%. The falling-film evaporator reduces the number of potential leak points by as much as 30%.

These chillers can use a wide range of heat-rejection methods — including open cooling tower, dry cooler, adiabatic cooler, heat recovery or heat pump.

For more information on this story, click here: May 2012, 164

Buteline Stand E2

Buteline UK is excited to be at elementalLONDON with its innovative and sustainable plumbing system, demonstrating the speed, simplicity and security that define Buteline and Bute-Heatline underfloor heating installations.

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