HES-D
Hooded Supply
Airfoil Propeller
Roof Mounted, Direct Drive

Fan power assembly is of welded tubular steel construction with a LorenizedTM powder coat finish. The minimum 14 gauge steel base features an integral spun venturi and continuously welded curb cap corners.
Galvanized steel hood features a large removable top cap allowing unobstructed access to the motor, and power assembly without removing the entire hood.
Exhaust, supply and reversible ventilators in sizes 20 through 48 and filtered supply ventilators in sizes 20 through 42 are shipped assembled. Exhaust, supply and reversible ventilators in size 54, and filtered supply ventilators in sizes 48 and 54, are shipped with the hood in two sections for easy field assembly.
Filtered H Series ventilators have two inch washable aluminum filters standard. Fiberglass and Polyester replaceable media filters are available as an option. Aluminum filters meet AGA requirements and are of high efficiency per AF1 test procedures.
Motors are heavy duty type with permanently lubricated bearings.