Magnetic Centrifugal Chiller

Johnson Controls Introduces the YORK Magnetic Centrifugal Chiller

08/24/2010


Johnson Controls introduces the YORK Magnetic Centrifugal Chiller (YMC²), which offers superior efficiency and sound performance.

 

Magnetic-bearing technology is utilized to eliminate mechanical-contact losses in the driveline. The OptiSpeed variable-speed drive has been improved, and efficiency of the evaporator has been enhanced with an advanced “falling-film” design. In addition, the efficiency features have been retained, including the optimized centrifugal compressor that takes advantage of low-temperature cooling-tower water to save energy.

 

Magnetic-bearing technology eliminates nearly all driveline vibration, and the YORK OptiSound control further reduces noise at off-design conditions. As a result, the YMC2 chiller operates at a maximum of 73 dBA at full-load standard conditions, per AHRI-575. The human ear perceives the YMC² chiller as about half as loud as other magnetic-bearing chillers.

 

The YMC² chiller features a sustainable design that uses refrigerant HFC-134a, which has zero ozone-depletion potential. The 10-% efficiency improvement dramatically reduces indirect global warming caused by greenhouse-gas emissions generated by electric utilities. In addition, 57% fewer refrigerant-piping connections drastically reduce the potential for direct global warming caused by refrigerant leakage.

 

The YMC² chiller also increases uptime and reduces maintenance costs. The magnetic-bearing drive has fewer moving parts and eliminates the oil-lubrication system. The driveline is field-serviceable, which means a back-up driveline is not needed. The chiller’s permanent-magnet motor has an inherently longer life than traditional motors, and the OptiSpeed drive’s soft-start sequence further extends motor life.   



No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
Combined heat and power; Assessing replacement of electrical systems; Energy codes and lighting; Salary Survey; Fan efficiency
Commissioning lighting control systems; 2016 Commissioning Giants; Design high-efficiency hot water systems for hospitals; Evaluating condensation and condensate
Solving HVAC challenges; Thermal comfort criteria; Liquid-immersion cooling; Specifying VRF systems; 2016 Product of the Year winners
Driving motor efficiency; Preventing Arc Flash in mission critical facilities; Integrating alternative power and existing electrical systems
Putting COPS into context; Designing medium-voltage electrical systems; Planning and designing resilient, efficient data centers; The nine steps of designing generator fuel systems
Designing generator systems; Using online commissioning tools; Selective coordination best practices
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.
click me