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UL 555 classifies dynamic rated fire dampers for use in HVAC systems that are operational in the event of fire. Model DFD-M150 has also been tested in accordance with BS476 to 4 hours at Warrington Fire, UK, and is approved for fire partitions of 4 hours or less where British Standards are required. CONSTRUCTION Galvanized steel (in gauges required by UL listing R-13317) INSTALLATION All fire damper installations require the use of sleeves, angles and methods described in Greenheck Fire Damper Installation Instructions #452763, included with every damper shipment. Sleeves can be field fabricated or factory furnished as a complete damper/sleeve assembly. See Factory Sleeve Option below for details. Model DFD-M150 meets the requirements for fire dampers established by: National Fire Protection Association (NFPA Standards 80, 90A & 101) Underwriters Laboratories Standard 555 (Listing #R-13317) BOCA National Building Codes ICBO Uniform Building Codes (UBC Standard 43-7) SBCCI Standard Building Codes New York City (MEA listing #260-91-M) California State Fire Marshall (Listing #3225-981:102 for use in walls) British Standard BS476 Tested to 4 hours at Warrington Fire, UK “UL CLASSIFIED (see complete marking on product)” “UL CLASSIFIED to Canadian safety standards (see complete marking on product)” Standard 555 (Listing #R13317) Features: • Stainless steel closure springs • Fusible links (69° C for BS476, 74°C standard for UL, 100°C available) • Can be mounted horizontally or vertically. 94mmH* *OW* TYPE B * These dimensions are furnished approximately 6mm undersize. ............ FACTORY SLEEVE OPTION DFD-350 Fire Dampers are available in factory furnished sleeves. Sleeves are galvanized steel and are available in 1.0mm - 1.5mm thicknesses and lengths up to 914mm. “K” dimension specifies location of damper within the sleeve. Minimum is 102mm, maximum is “L” less 102mm, which allows for mounting angle installation and .. duct connection at each end of sleeve. If “K” dimension is not specified, it will be provided as one half of “L” dimension (damper centered in sleeve). When sealed option is selected, B transitions will need to be field sealed in the area where duct to sleeve connection is made. 94mm W* H* TYPE A .......................................................................................................................... Type B with sleeve Type B corner profile DFD-M150 Type A SIZING AND ASSEMBLY DATA Dampers larger than maximum single section size are supplied in 2 or more sections of equal size. If ordered with a factory sleeve, multi-section dampers are factory assembled ready for installation. If ordered without a factory sleeve, multi-section dampers require field assembly. (See Greenheck Fire Damper Installation Instructions #452763) The following chart and illustrations show minimum and maximum damper section size and assembly configurations for multi-section dampers. SIZE LIMITATIONS mm Vertical or Horizontal Single Section Multi- Section Minimum 102 x 102 NA Maximum 914 x 9141 2438 x 1219 or 3048 x 10162 3 Installation of sizes larger than the maximums shown requires approval of the authority having jurisdiction. 1 Maximum Single Section Dimensions 914mm max. 914mm max. 2 Multi-Section Limitations Maximum damper height is 1219mm when combination width is 2438mm or less. 1219mm max. 2438mm max. 3 Mult-Section Limitations Maximum damper height is 1016mm when combination width is greater than 2438mm and less than or equal to 3048mm. 1016mm max. 3048mm max. Blade Stack Dimensions H* PW* H* P 102 20 127 20 152 23 178 28 203 30 229 33 254 33 279 36 305 41 330 43 356 46 381 46 406 51 432 53 457 56 483 58 508 61 533 66 559 66 584 69 610 74 635 79 660 81 686 81 711 84 737 86 762 91 787 94 813 94 838 99 864 99 889 104 914 107 * These dimensions are furnished approximately 6mm undersize. (Dimension in mm) 940mmMax. DFD-M150 Type R Sizing and Assembly Data Dampers larger than maximum single section size are supplied as a factory assembly of two or more sections of equal size. Transition is centered on damper frame (or frame assembly for multiple section dampers). SIZE LIMITATIONS 76mm min. 1829mm max. DFD-M150 Type B SIZING AND ASSEMBLY DATA Dampers larger than maximum single section size are supplied in 2 or more sections of equal size. If ordered with a factory sleeve, multi-section dampers are factory assembled ready for installation. If ordered without a factory sleeve, multi-section dampers require field assembly. (See Greenheck Fire Damper Installation Instructions #452763) The following chart and illustrations show minimum and maximum damper section size and assembly configurations for multi-section dampers. SIZE LIMITATIONS mm Vertical or Horizontal Single Section Multi- Section Minimum 102 x 102 NA Maximum 914 x 813 1219 x 813 Installation of sizes larger than the maximums shown requires approval of the authority having jurisdiction. 1 Maximum Single Section Multi Section Limitations Dimensions ...