Centrifugal Chiller Is Built for Performance with Low-GWP Refrigerant

The YORK YZ Magnetic Bearing Centrifugal Chiller is optimized for performance with a next generation low-global warming potential (GWP) refrigerant, R-1233zd(E).
The YORK YZ Magnetic Bearing Centrifugal Chiller is optimized for performance with a next generation low-global warming potential (GWP) refrigerant, R-1233zd(E).

Johnson Controls has introduced the YORK YZ Magnetic Bearing Centrifugal Chiller, a chiller optimized for performance with a next generation low-global warming potential (GWP) refrigerant, R-1233zd(E). Chosen for its efficiency, safety, availability, low environmental impact and cost, nonflammable R-1233zd(E) has an ultra-low GWP of 1 and is available from refrigerant manufacturers.

Johnson Controls used a holistic approach to system design and engineering, optimizing every component around the next generation refrigerant for ultimate performance.  The YORK YZ chiller uses a variable speed drive and magnetic bearing technology that features a single moving assembly suspended in a magnetic field that does not require lubrication. This technology requires 80 percent fewer moving parts than traditional oil- or refrigerant-lubricated drivelines. The result is reduced maintenance and efficiency. Compared to traditional fixed-speed oil-bearing chillers, the YZ delivers up to 35 percent annual energy savings.

The YZ chiller can deliver energy savings and lower operating costs by taking advantage of the off-design conditions where chillers operate 99 percent of the time. The YZ operates with an entering condenser water temperature as low as 40 F (4.5 C), providing performance in every operating condition. The YORK YZ uses a single stage design to provide energy efficiency. The chiller can also operate with condenser temperatures below the evaporator temperatures, eliminating the need for a water-side economizer, which simplifies the system; requires less mechanical room space; and saves money on components, piping, controls and maintenance.

The YZ chiller brings together YORK innovations refined over decades of use to create a revolution in chiller design and optimization. It represents a solution from the chiller experts, who like to think of the YORK YZ chiller as tomorrow’s chiller that is available today.

To learn more about the YORK YZ Magnetic Bearing Centrifugal Chiller, visit online.  

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