Document Cart
Model RD-2
3 Hour - Ceiling Radiation Damper
Butterfly Style Blade
The RD-2 ceiling radiation damper employs butterfly style blades for point-of-origin control of radiant heat in HVAC systems. The RD-2 is installed horizontally in the ceiling membrane of floor-ceiling or roof-ceiling assemblies with fire resistance ratings up to and including 3 hours.
Standard Construction
Frame: 22 ga. (0.85) galvanized steel.
Blades: 22 ga. (0.85) galvanized steel - butterfly insulated with ceramic refractory material for dampers larger than 114 in2 (735 cm2).
Fire Closure Device: Fusible Link.
Fire Closure Temperature: 165oF (75oC).
Minimum Size: 4" x 6" (102 x 152)
Maximum Size: 24" x 24" (610 x 610)
Ratings
UL 555C Fire Resistance Rating: 3 hour (horizontal, for use in 1, 2 or 3 hour rated assemblies).
UL 555C Listing: R14980
CSFM Listing: 3226-1404:100
Warnock Hersey Listing #: WHI-495-PSH-0177, -0178
Meets NFPA Standards: 90A and 101
Meets Building Code Standards: IBC, NBC, NFPA, SBC and UBC
Click to view or check box to add to cart