CHICAGO — In the world of motors and drives at the 2003 Air-Conditioning, Heating, Refrigerating Exposition (AHR Expo), product changes evident at the show included more variable operation, variable mounting, less energy consumption, and a whole lot of interoperability.

The company also announced that it has more than doubled the size of its product engineering operations in the last year, to meet the needs of its heating and air conditioning customers.