More Oil-Free 'Frictionless' Chillers

AEC, Inc., Wood Dale, Ill., is the second chiller supplier to adopt a revolutionary compressor that is quieter and more energy-efficient than standard compressors and requires less maintenance, too.

AEC, Inc., Wood Dale, Ill., is the second chiller supplier to adopt a revolutionary compressor that is quieter and more energy-efficient than standard compressors and requires less maintenance, too. Made by Danfoss Turbocor in Dorval, Que., this new type of compressor has “frictionless” magnetic bearings that replace conventional lubricated bearings. Because it is oil-free, it avoids all of the costs associated with oil management. Sound levels are said to be as low as 77 dBA. AEC says its new water-cooled RTCW central chillers also cost 35% less than standard units. They come in sizes of 120 to 190 tons. The first plastics chillers based on the Danfoss Turbocor compressor were introduced last fall by Thermal Care, Inc., Niles, Ill.