Search in Greenheck catalogs and technical brochures on DirectIndustry and find the information you need in 1 click. Consult Greenheck’s entire Centrifugal Roof Exhaust Fans catalogue on DirectIndustry. Page: 1/ Catalogs, Installation, Operation and Maintenance Manuals (IOM’s), . Greenheck’s model SWB Series backward inclined utility fans are.
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Construction Features Models G and GB Standard Construction Features 1 An aluminum, backward-inclined, non-overloading centrifugal wheel is utilized to generate high-efficiency and minimal sound.
Centrifugal Roof Exhaust Fans – Greenheck – PDF Catalogs | Technical Documentation | Brochure
Wheel cones are carefully matched to the venturi for maximum efficiency. Each wheel is robotically welded and statically and dynamically balanced for long life and quiet operation. Disconnect Switch NEMA-1 switch is factory mounted and wiring is provided from the motor as standard other switches are available.
GB smoke control models are: Forceful winds and wind-borne debris are the cause of most hurricane damage.
Forceful winds are not the only problem, wind-borne debris can also cause detrimental effects to objects and structures. High winds and extreme forces are the cause of most storm damage. By analyzing calculations, computer simulations, actual testing, and other standards—Greenheck Dial on Motor Control – a potentiometer dial on motor control is mounted on the motor for easy speed adjustment for system balance.
Simply turn the dial. There are no belts and pulleys to adjust. Remote Dial – Allows for remote, manual airow adjustments. Wall plate with dial may be mounted in a standard 2×4 inch electrical junction box.
Two Speed Control with Integral Transformer Control allows motor rpm to be set at two independent speeds high or low. Meets minimum airow requirements with the ability to bump up to high speed in an emergency or meet maximum airow Roof Curbs High Wind and Severe Duty Roof Curbs Prefabricated roof curbs reduce installation time and costs by ensuring compatibility between the cataloguw, the curb and roof opening.
All curbs are insulated with berglass. A wide variety of roof curbs are available, including: Constructed of 18 gauge steel, formed and welded sides, and a 5-inch ashing ange.
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GPF is available up to 42 inches in height. Hinged Curb Cap with Cables They provide an economical means of system balancing with direct drive fans. Birdscreen Galvanized mesh is standard, optional aluminum or stainless steel rigid wire are also available.
Disconnect Switches A wide selection of NEMA rated switches are available for positive electrical shutoff and safety, including: Switches may be internally or externally mounted. Tests were conducted to assure safe, rugged and reliable fans. Due to the varying types of airstreams encountered in commercial ventilation, system designers must be aware of national, state, and local codes and guidelines governing these installations.
Local code authorities should be consulted before proceeding with any ventilation project.
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