110Cfm Blower With Metal Grille - Model 110Rdb

Many local codes require that exhaust fans installed in fire-rated ceilings must be protected by dampers, which, in case of fire, protect against the spread of heat and flame. Being fire-rated means the ability of a wall, floor/ceiling, or roof/ceiling to withstand the effects of fire for a specified period of time. NuTone ceiling radiation dampers are designed to protect the openings in 1-, 2-, or 3-hour fire-rated floor-ceiling and roof-ceiling designs. When the temperature of the air passing through the damper exceeds 165В°F, the fusible link melts and the thermal fabric across the damper closes automatically to interrupt the airflow by becoming a flame and heat barrier, preventing rapid spread of fire to other areas.

• Blower Assembly Will Fit Into Housing Without The Removal Of The Radiation Damper - One Less Step In Installation Process
• ul Classified (ul Standard 555C) For Use In 1-, 2-, Or 3-Hour Fire-Rated Floor-Ceiling And Roof-Ceiling Designs
• Warnock Hersey listing Allows Use In Combustible Ceilings With Ducted Fans
• High Temperature, Non-Asbestos, Reinforced Fiber Thermal Fabric
• Galvanized Steel Frame
• 165В°F Fusible link
• Stainless Steel Negator-Type Closure Spring
• Housings And Finishes (Motor Assembly And Grille) Sold Separately In Units Of Four Per Carton - Purchase Housings For Rough-In And Blower Assemblies/Grilles Later For Finishing
• Available From 50 Cfm To 110 Cfm
• Radiation Damper Comes Attached To Housing
• Blower Assembly Will Fit Into Housing Without The Removal Of The Radiation Damper - One Less Step In Installation Process