Centrifugal Chillers - CFC Retrofit Versus Replacement

摘要

As of January 1, 1996, chlorofluorocarbon (CFC) refrigerants CFC-11 and CFC-12can no longer be produced in the United States. It is estimated that as many as 60,000 or 74% of CFC chillers in service today in industrial, commercial, and institutional buildings still use the 'banned' refrigerants. In addition, most of the Navy's centrifugal chillers also use these refrigerants. In May 1994, the Naval Facilities Engineering Command dictated (NAVFAC Notice 5090) that all shore-based Navy Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) equipment containing Class I Ozone Depleting Substance (ODS) be replaced or converted by December 41,2000. Equipment conversions must utilize an approved