Johnson Controls Introduces the York® YVAA Air-Cooled Variable-Speed Screw Chiller

Johnson Controls, a global leader in delivering products, services and solutions that increase energy efficiency in buildings, introduces the YORK® YVAA air-cooled variable-speed screw chiller, which can be tailored and tuned to offer superior efficiency, reduced sound and greater sustainability.

Featuring the industry’s highest COP (Coefficient of Performance) at both full-load design and off-design conditions, the YVAA chiller ensures optimum efficiency under all operating conditions. On replacement projects, YVAA’s energy performance can exceed that of older chillers by as much as 50 per cent, while performance on new projects can exceed competitors’ chillers by up to 25 per cent. In addition, the chiller’s performance can be tailored and tuned to hit specific targets for government grants, where available.

The YVAA chiller also offers flexible energy consumption, with design efficiencies up to 3.4 EER. The unit can also be configured to deliver an integrated part-load value (ESTEER) up to 4.8 EER.

The YVAA chiller provides superior sound performance. In addition to a variety of sound-attenuation options, the YVAA’s SilentNight™ feature works with a BAS (or programmable control) to load-limit the chiller when noise reduction is a priority. When optimised for sound performance, the YVAA chiller can reduce ambient noise by as much as 16 dBA at off-design conditions.

The YVAA chiller 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, while a proprietary falling-film evaporator and advanced microchannel condenser coils reduce the refrigerant charge by as much as 15 per cent. Water, too, is handled responsibly, since no cooling tower is required. And because power generation is a major water consumer, the high efficiency of the YVAA chiller conserves water. These sustainability advantages of the YVAA chiller give building owners the opportunity to earn points in the Leadership in Energy and Environmental Design (LEED®) green-building certification programmes.

Johnson Controls introduced the industry’s first air-cooled VSD screw chiller in 2004. The company’s installed base now spans 2 million tonnes in more than 100 countries, representing more than 18,000 years of field experience.

BIM files for YVAA chillers are available on the Autodesk® Seek site. For more information about the YVAA chiller, visit the YVAA webpage or contact your nearest Johnson Controls branch office.

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