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The damper employs a folded curtain style blade for point-of-origin control of radiant heat in a ventilation system. GBR-CRD installs horizontally in the ceiling membrane for floor/ceiling or roof/ceiling assemblies with a fire resistance rating up to and including 3 hours.
- GBR-CRD, Ceiling Radiation Damper helps to limit the radiant heat transfer through an air inlet/outlet opening in the ceiling membrane. Fire resistance is rated up to 3 hours floor/ceiling or roof/ceiling assemblies
- UL and cUL listed and exceeds UL 555C for use in 3-hour fire rated assemblies
- Warnock-Hersey certified for use in fire rated floor/ceiling or roof/ceiling assemblies.
- Warnock Hersey listing #: 101232214SAT-003,-004
- CSFM listing: 3226-0368:104
- UL 555C listing: R27832
- Meets NFPA Standards: 90A and 101
- Meets Building Code Standards: IBC, NBC, NFPA, SBC, and UBC
- UL listed as fan/damper assembly for the following Wood Frame Construction designs: L521, L546, L558, L562, L574, L576, L581, L583, L585, P522, P533, P538 and P545
- Available for Delta Breez Ventilation Fans:
GBR50, GBR50L, GBR80, GBR80H, GBR80HL, GBR80HLED, GBR80L, GBR80LED, GBR80MHL, GBR80MHLED, GBR100, GBR100H, GBR100HL, GBR100HLED, GBR100L and GBR100LED
ELT80-110, ELT80-110D, ELT80-110H, ELT80-110MH, ELT80-110LED, ELT80-110DLED, ELT80-110HLED and ELT80-110MHLED
Manufacturer Resources
Product Specs
- Category:
- Ventilation Fans
- Subcategory:
- BreezGreenBuilder
- Duct Diameter:
- 4"
- Height:
- 5-1/8"
- Width:
- 8-1/2"
- Depth:
- 8-3/4"
- Energy Star:
- Yes
- Warranty:
- 3 Year Limited