U.S. General Services Administration
Variable-Speed Direct-Drive Screw Chiller
GPG evaluated a variable-speed direct-drive screw (VSS) chiller against a baseline state-of-the-art chiller technology, the variable-speed magnetic bearing chiller (MBC). Results showed similar performance for both chillers.
Agencies should consider both VSS and MBC for new or end-of-life chiller replacements. Individual site characteristics will determine the most cost-effective chiller technology for a particular application.
Reference above to any specific commercial product, process or service does not constitute or imply its endorsement, recommendation or favoring by the United States Government or any agency thereof.