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UL 555 classifies dynamic rated fire dampers for use in HVAC systems that are operational in the event of fire . RATINGS UL555 Fire Resistance Rating Fire Rating: 1 1/2 hours Dynamic closure rating Maximum Velocity: 4000 fpm (20.3 m/s) up to 24 in. x 24 in. (610mm x 610mm) 2000 fpm (10.2 m/s) above 24 in. x 24 in. (610mm x 610mm) Maximum Pressure: 4 in. wg (1 kPa) CONSTRUCTION Damper is galvanized steel (in gauges required by UL listing R-13317) sleeve is 20 ga. galvanized steel. STANDARD FEATURES • Stainless steel closure springs • Fusible links (165.F (74.C) standard, 212.F (100.C) and 286.F (141.C) available. • Horizontal or vertical mount available OPTIONAL FEATURES • Security bars • One piece retaining angles (POC) • Transitions (B, C, CO, CR, & R) • Steel stud connection • Sealed transitions and sleeves 11.2 Hour Fire Resistance Rating H * K Damper Location W * CL Damper FramSleeve CL Damper Frame Damper Overall Sleeve Length Fusible Link (replaceable) P * 10 in. (305mm) = DFD-150X10 Model DFD-150X meets the requirements for fire dampers established by: National Fire Protection Association (NFPA Standards 80, 90A & 101) 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) “UL CLASSIFIED (see complete marking on product)” “UL CLASSIFIED to Canadian safety standards (see complete marking on product)” Standard 555 (Listing #R13317) 12 in. (305mm) = DFD-150X12 14 in. (356mm) = DFD-150X14 16 in. (406mm) = DFD-150X16 VERTICAL MOUNT *These dimensions are furnished approximately 1.4 in. (6mm) undersize. K CL Damper Frame HORIZONTAL MOUNT DFD-150X Type A Dampers larger than maximum single section size are supplied in 2 or more sections of equal size. The following chart and illustrations show minimum and maximum damper section size and assembly configurations for multi-section dampers. Blade Stack Dimensional Data SIZE LIMITATIONS Inches Type A Type B (mm) minimum maximum minimum maximum Single Section Vertical 6 x 4 (152 x 102) 36 x 36 (914 x 914) 6 x 6 (152 x 152) 36 x 32 (914 x 813) 72 x 48 72 x 45 Multi (1829 x 1219) (1829 x 1143) Section** NA or NA or Vertical 60 x 60 60 x 56 (1824 x 1524) (1524 x 1422) Single Section Horizontal 6 x 4 (152 x 102) 30 x 30 (762 x 762) 6 x 6 (152 x 152) 30 x 26 (762 x 660) Multi Section** Horizontal NA 48 x 36 (1219 x 914) NA 48 x 32 (1219 x 813) H* PW* H* P in. mm in. mm 8 203 1.2 30 9 229 1.3 33 10 254 1.3 33 11 279 1.4 36 12 305 1.6 41 13 330 1.7 43 14 356 1.8 46 15 381 1.8 46 16 406 2.0 51 17 432 2.1 53 18 457 2.2 56 19/37/38 483/940/965 2.3 58 20/39/40 508/991/1016 2.4 61 21/41/42 533/1041/1067 2.6 66 22/43/44 559/1092/1118 2.6 66 23/45/46 584/1143/1168 2.7 69 24/47/48 610/1194/1219 2.9 74 25/49/50 635/1245/1270 3.1 79 26/51/52 660/1295/1321 3.2 81 27/53/54 686/1346/1372 3.2 81 28/55/56 711/1397/1422 3.3 84 29/57/58 737/1448/1473 3.4 86 30/59/60 762/1499/1524 3.6 91 31/32 787/813 3.7 94 33/34 838/864 3.9 99 35 889 4.1 104 36 914 4.2 107 Installation of sizes larger than the maximums shown requires approval of the authority having jurisdiction. ** Consult factory for number of sections. 1 MAXIMUM SINGLE SECTION DIMENSIONS 36in. max. (914mm) 36 in. max. (914mm) MULTI-SECTION LIMITATIONS Maximum height is 48 in. (1219mm) when width is 72 in. (1829mm) or less. 2 48 in. (1219mm) max. * These dimensions are furnished approximately 1/4 in. (6mm) undersize. 72 in. (1829mm) max. DFD-150X Type B Dampers larger than maximum single section size are supplied in 2 or more sections of equal size. The following chart and illustrations show minimum and maximum damper section size and assembly configurations for multi-section dampers. Type B OverallDamper Dimensions Maximum Single Section Dimensions H*O* W* 32 in. (813mm) max. 36 in. (914mm) max. 2 MULTI-SECTION LIMITATIONS Maximum height is 45 in. (1143mm) when width is 72 in. (1829mm) or less. 45 in. (1143mm) max. 72 in. (1829mm) max. H* O* 6 (152) 8 (203) 7 (178) 9 (229) 8 (203) 10 (254) 9 (229) 11 (279) 10 (254) 12 (305) 11 (279) 13 (330) 12 (305) 14 (356) 13 (330) 15 (381) 14 (356) 16 (406) 15 (381) 18 (457) 16 (406) 19 (483) 17 (432) 20 (508) 18 (457) 21 (533) 19 (483) 22 (559) 20 (508) 23(584) 21 (533) 24 (610) 22 (559) 26 (660) 23 (584) 27 (686) 24 (610) 28 (711) 25 (635) 29 (737) 26 (660) 30 (762) 27 (686) 31 (787) 28 (711) 32 (813) 29 (737) 33 (838) 30 (762) 34 (864) 31(787) 35 (889) H* O* 32(813) 36 (914) 33 (838) 36 (914) 34 (864) 37 (940) 35 (889) 38 (965) 36 (914) 39 (991) 37 (940) 40 (1016) 38 (965) 41 (1041) 39 (991) 42 (1067) 40 (1016) 43 (1092) 41 (1041) 44 (1118) 42 (1067) 45 (1143) 43 (1092) 46 (1168) 44 (1118) 47 (1194) 45 (1143) 48 (1219) 46 (1168) 50 (1270) 47 (1194) 51 (1295) 48 (1219) 52 (1321) 49 (1245) 53 (1346) 50 (1270) 54 (1372) 51 (1295) 55 (1397) 52 (1321) 56 (1422) 53 (1346) 57 (1448) 54 (1372) 58 (1473) 55 (1397) 59 (1397) 56 (1422) 60 (1524) ...