Nutone 110RDB Radiation Damper 110CFM Blower with Metal Grille

Nutone 110RDB Radiation Damper 110CFM Blower with Metal Grille Description

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 165F, 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.Housings and finishes (motor assembly and grille) sold separately - purchase housings for rough-in and blower assemblies grilles later for finishing 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 165F fusible link Stainless steel negator-type closure spring 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 processAmperage: 0.6 Duct Size: 4" Round Energy Star: No Finish: White Grille Finish: White Acrylic Metal Grille Length: 10-1 4 Grille Width: 10-1 4 Heater Included: No Housing Depth: 8-3 4 Housing Height: 8-3 4 Housing Length: 8 Housing Width: 8-1 4 Humidity Sensing: No Light Included: No Max Area Bathroom: 105 Motion Sensing: No Sones: 4 UL Listed: Yes Voltage: 120 Watts: 71 Weight: 3RDA is sold separately.

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