DATA CENTRE SPOTLIGHT
Green Point UK responds to emergency call following chiller failure
Prompt action by Green Point UK, Bitzer UK’s compressor remanufacturing and services arm, ensured critical cooling at a major UK data centre was maintained following failure of a number of chillers at the site.
T
he loss of cooling capacity meant the data centre was vulnerable to a spike in ambient temperatures or an increase in intensity of server usage, which could have
overloaded remaining cooling plant at the site, with potentially catastrophic consequences. Will Pribyl, general manager of Green Point UK, said: “Due to system issues, a number of chillers on site had gone down and the data centre was vulnerable. The work needed to be done immediately to ensure continuity of cooling, and the on-site contractor was under pressure to solve the problem.” The company was contacted due to its proactive approach and ability to guarantee remanufacture of compressors regardless of their mechanical and electrical condition once units have been stripped down. Green Point UK fast-tracked full strip-down and remanufacture
of fi ve Bitzer CSH95111 and CSH95113 semi-hermetic screw compressors, which are optimised for data centre cooling and use in air-cooled liquid chillers in UK conditions. As part of the remanufacturing process, the company
upgraded the compressors to the latest BITZER specifi cation, improving effi ciency and ensuring compatibility with current- generation spare parts. The upgraded compressor has the same footprint but includes internal enhancements, including replacement of the original fl oat type oil-level management control with an optical sensor for improved performance. The optical system provides contactless oil-level monitoring, ensuring the compressor has optimum lubrication at all times. Pribyl said: “The upgrade eff ectively took what were fi rst
generation units up to the same specifi cation as Bitzer’s latest third generation units, improving energy performance and reliability, and ensuring spare part support for the foreseeable future.” Green Point UK is now supporting the contractor on improving
the resilience of other data centre facilities it is responsible for, including use of monitoring via the Bitzer Digital Network and reducing running costs with variable speed drives.
30 August 2024 •
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