Open Plenum Array
Greenheck’s model OPA is a configurable open plenum array that can be designed and optimized for a specified height and width. Customize the array based on sound, horsepower, number of fans or efficiency criteria. Constructed of foam-filled galvanized steel panels within a laser cut and formed galvanized steel structure.
Specify your open plenum array in sizes up to 96 inches high and 636 inches long. Choose between NEMA premium AC induction motors up to 10 HP or three-phase Vari-Green motors with an integrated drive.