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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. Available at AppliancesConnection
- Stainless steel negator-type closure spring.
- Galvanized steel frame.
- 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.
- 165(degree)F fusible link.
- Warnock Hersey Listing allows use in combustible ceilings with ducted fans.
- UL classified (UL standard 555C) for use in 1-, 2-, or 3-hour fire-rated floor-ceiling and roof-ceiling designs.
- High temperature, non-asbestos, reinforced fiber thermal fabric.
- 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.
- Stock Id:159568
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