HVAC Excellence has announced a seminar on the changes in refrigeration presented by Nick Strickland, market development manager for DuPont Refrigerants, on Tuesday, March 18, 2008, during the HVAC Excellence National HVAC Educators and Trainers Conference at the Imperial Palace Hotel in Las Vegas, NV. This is an opportunity for HVACR wholesalers, educators, trainers, and contractors to learn about the options available to them and how DuPont can aide them in their transition.

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