PLENUM FANGreenheck’s newest addition to its plenum fan line is the Housed Plenum Array Model HPA. The plenum fan is designed for fan array installations in air-handler applications. Model HPA features a direct-drive galvanized plenum fan mounted inside sound-attenuating housing. Integrated isolators between the fan and housing reduce vibration, eliminating the need for isolators and gaskets between modules. The model is available in 10 wheel sizes from 15 inches to 36 inches. There are also three different housing options which include compact, standard and large. Model HPA is ideal for replacement or air-handler applications as its Greenheck officials said the small, light-weight design of the plenum fan makes it ideal for replacement applications.

Greenheck, P.O. Box 410, Schofield, WI 54476-0410; (715) 359-6171; fax (715) 355-2399; www.greenheck.com