en.Wedoany.com Reported - Schneider Electric has launched its new "Uniflair XCA" chiller series, featuring an Energy Efficiency Ratio (EER) of up to 4.66, designed to address the cooling challenges posed by high-density GPU clusters.
The system combines air cooling with free cooling methods, primarily targeting operators of high-density liquid-cooled data centers handling AI workloads. Schneider Electric has already delivered the first units, and they are available globally.
With the proliferation of GPU clusters and liquid cooling architectures, data center operators require cooling systems that can operate stably under varying loads, adapt to higher water temperatures, and maximize the use of free cooling. According to the supplier, the Uniflair XCA series is designed for this purpose, suitable for data center operators that have transitioned or are transitioning to liquid cooling technology for AI and high-performance computing (HPC).
This chiller series includes two models: the "Uniflair XCAC" for air cooling and the "Uniflair XCAF" for free cooling. Both models utilize oil-free magnetic levitation centrifugal compressors, integrated variable speed control, and spray evaporators. The entire series comprises six sizes, with a cooling capacity range of 1200 to 2500 kilowatts and an EER of up to 4.66. The refrigerants used have ultra-low global warming potential (ultra-low GWP) and comply with EU F-gas Regulation 2024/573.
Among them, the "Uniflair XCAF" model is designed for operating conditions with leaving water temperatures up to 33 degrees Celsius, enhancing the availability of free cooling throughout the year. The system's operating temperature range is from minus 20 degrees Celsius to plus 52 degrees Celsius. According to Schneider Electric, in temperate climate regions, this model can save up to 60% in energy compared to purely mechanical cooling. The magnetic levitation compressor eliminates the need for a lubricating oil circuit, reducing maintenance workload, contamination risks, and mechanical losses. For heat rejection, Schneider Electric employs a heat exchanger architecture with spray evaporators and V-shaped microchannel coils, aiming to reduce both refrigerant charge and material usage. A new generation of large-size EC fans improves heat exchange and airflow while reducing noise. According to the manufacturer, the system can restore full-load operation within three minutes after a power outage. New firmware features enable real-time operational optimization, including variable speed pump algorithms (such as constant flow, constant temperature difference, or constant pressure difference), fan modulation for low-noise and ultra-low-noise modes, as well as energy measurement and real-time flow measurement.
