Model FD4-C

1-1/2 Hour - Static Fire Damper
Curtain Style Blade

The FD4-C fire damper employs curtain style blades for point-of-origin control of fire in static and dynamic HVAC systems. The FD4-C may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 2 hours.

Standard Construction

Frame: 22 ga. (0.85) galvanized steel.
Blades: 24 ga. (0.7) galvanized steel - curtain.
Fire Closure Device: Fusible link.
Fire Closure Temperature: 165^oF (75^oC)
Minimum Size: Vertical Mount: 4" x 2" (102 x 76)
                           Horizontal Mount: 4" x 3" (102 x 102)
Maximum Size: Single Section: Vertical: 46" x 43" (1168 x 1092)
                           Horizontal: 38" x 35" (965 x 889)
                           Multiple Section: Vertical: 118" x 75" (2997 x 1905) or
                                                                     78" x 115" (1981 x 2921)
                                                       Horizontal: 78" x 75" (1981 x 1905)
Stainless Steel: Single Section: 38" x 35" (965 x 889)
                            Multiple Section: Vertical: 78" x 35" (2032 x 914) or
                                                                     38" x 75" (1981 x 889) or
                                                                     106" x 21" (2692 x 533)                                                     
                                                        Horizontal: 78" x 35" (19812 x 889) or
                                                                          38" x 75" (965 x 1905)

Ratings

UL 555 Fire Resistance Rating: 1-1/2 hour (vertical and horizontal)
UL HNLJ.V-5: Ventilation Duct Assemblies

UL 555 Listing: R14981
CSFM Listing: 3225-1404:101
New York City MEA Listing: 295-98-E
Meets NFPA Standards: 90A, 92A, 92B and 101
Meets Building Code Standards: IBC, NBC, NFPA, SBC and UBC