Model NYD & NYB
Options and Accessories
Dampers - Gravity and motorized dampers are designed to prevent outside air from entering back into the building when the fan is off. Damper sizes are shown on the performance pages.
Disconnect Switches - A wide selection of NEMA rated switches are available for positive electrical shutoff and safety, including
and
Curb Extension - Extensions raise the fan discharge above the roofline and provide an accessible mounting
location for dampers. Insect screen bases constructed with a removable fine mesh are recommended for applications where insect entry must be prevented.
Roof Curbs -
Prefabricated roof curbs reduce installation time and costs by ensuring compatibility between the fan, curb and roof opening. All curbs are
insulated with fiberglass. A wide variety of roof curbs are available including: flanged, pitched and
Curb Seal - Rubber seal between fan and curb to assure proper sealing when attached to a curb.
Coatings - Wide variety of coatings and colors are available for decorative to corrosive applications.
Permatector™ is our standard coating. Typically used for applications that require corrosion resistance in indoor and outdoor environments.
Baked Enamel Decorative Coatings are heat cured enamels applied either as wet paints or electrostatic powders. Customers can choose from 16 standard decorative colors or color match any color.
All coatings with relative resistance charts can be found in Greenheck’s Product Application Guide, Performance Coatings for Ventilation Products.
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