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ARLINGTON, VA -- The U.S. economic downturn has slowed replacement of comfort cooling chillers that use chiorofluorocarbons (CFCs). Manufacturers predict that by year-end, 48% of the original 80,000 CFC chillers will still rely on the refrigerants that were banned from U.S. production at the end of 1995 due to concerns about ozone depletion.
A survey of large-tonnage liquid chiller manufacturers by the Air Conditioning and Refrigeration Institute (ARI) revealed that 2931 CFC chillers were converted to non-CFC refrigerants or replaced by new non-CFC equipment during 2001, with 3124 more expected in 2002, leaving an estimated 38,281 CFC units still in use.
The U.S. Environmental Protection Agency (EPA) states that building ...