DeCA chose to adopt a NH3/CO2 cascade system for two main reasons: (1) to control future capital and operating costs, and (2) to meet the energy and sustainability goals the U.S. Government has established for all public buildings.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Low-GWP Alternatives In Commercial Refrigeration (PDF)(3 pp, 675 K, June 2015)