Energy recovery ventilators; energy recovery ventilation components comprised of rotary air-to-air heat exchangers, with or without desiccant coatings, for transferring energy between two airstreams, and their associated wheel constructions, frames, seals, motors, drives and bearings; and Computer programs for aiding in the design and selection of energy recovery ventilation components for rotary air-to-air heat exchangers
Electrical and Scientific Apparatus