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Model SSFSD-211 may be installed vertically (with blades running horizontal) or horizontally and is rated for airflow and leakage in either direction. Ratings UL 555 Fire Resistance Rating Fire Rating: 11.2 Hours Dynamic Closure Rating: Actual ratings are size dependant Maximum Velocity: 2000 fpm (10.2 m/s) Maximum Pressure: 4 in. wg (1.0 kPa) UL 555S Leakage Rating Leakage Class: I Operational Rating: Actual ratings are actuator dependant Maximum Velocity: 2000 fpm (10.2 m/s) Maximum Pressure: 4 in. wg (1.0 kPa) Maximum Temperature: 350.F (177°C) —Depending on actuator Standard Construction Frame: 5 in. x 1 in.(127mm x 25mm) 16 ga. (1.5mm) 304 stainless steel hat channel with reinforced corners . A low profile head and sill are used on sizes less than 17 in. (432mm) high to maximize free area and performance. Blades: 16 ga. (1.5mm) 304 stainless steel, reinforced with 3 longitudinal structurally designed vee’s. Seals: Extruded silicone rubber blade seals. Flexible 304 stainless steel jamb seals. Linkage: 304 stainless steel, concealed in jamb. Axles: 1/2 in. (13mm) diameter 304 stainless steel. Bearings: 304 stainless steel sleeve type. Closure Device: 165. F (74.C) RRL Size Limitations Minimum Size: 8 in. W x 6 in. H (203mm W x 152mm H) Maximum Size: Single Section: 24 in. W x 30 in. H Vertical or Horizontal Mount (610mm x 762mm ) or 22 in. W x 36 in. H Vertical Mount (559mm x 914mm) Multiple Section: 48 in. W x 30 in. H Vertical or Horizontal Mount (1219mm W x 762mm H) or 88 in. W x 72 in. H Vertical mount (2235mm x 1829mm ) Optional Features • OCI (Open closed indication switches) • 165. F (74°C), 212.F (100°C), and 350.F (177°C) RRL available • TOR (remote override of 165.F [74°C] closure allows damper to perform smoke management functions during a fire emergency) • Electric or pneumatic actuators to accomplish smoke manageStainless Steel 3V Blades UL 555S Leakage Class I UL555 11.2 Hour Fire Resistance Rating Model SSFSD-211 meets the requirements for fire dampers, smoke dampers and combination fire smoke dampers established by: National Fire Protection Association NFPA Standards 80, 90A, 92A, 92B, 101, & 105 ICBO Uniform Building Codes IBC International Building Codes New York City (MEA listing #260-91-M) SBCCI Standard Building Codes California State Fire Marshall Listing #: 3225-0981:103 (fire) Listing #: 3230-0981:104 (smoke) “UL CLASSIFIED (see complete marking on product)” “UL CLASSIFIED to Canadian safety standards (see complete marking on product)” Standard 555 & 555S (Listing #R13317) Greenheck Fan Corporation certifies that the model SSFSD-211 shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 511 and comply with the requirements of the AMCA Certified Ratings Programs. The AMCA Certified Ratings Seal applies to air performance ratings only. H* W* LH RH * W & H dimensions furnished approximately 1/4 in. (6mm) undersize. (Add sleeve thickness for overall sleeved damper dimension) Right hand drive is shown. Left hand drive is available upon request. ment and system functions. Installation instructions available at Pressure Drop Data SSFSD-211 This pressure drop testing was conducted in accordance with AMCA Standard 500-D using the three configurations shown. All data has been corrected to represent standard air at a density of .075 lb/ft3 (1.201 kg/m3). Actual pressure drop found in any HVAC system is a combination of many factors. This pressure drop information along with an analysis of other system influences should be used to estimate actual pressure losses for a damper installed in a given HVAC system. AMCA Test Figures Figure 5.3 Illustrates a fully ducted damper. This configuration has the lowest pressure drop of the three test configurations because entrance and exit losses are minimized by straight duct runs upstream and downstream of the damper. Figure 5.2 Illustrates a ducted damper exhausting air into an open area. This configuration has a lower pressure drop than Figure 5.5 because entrance losses are minimized by a straight duct run upstream of the damper. Figure 5.5 Illustrates a plenum mounted damper. This configuration has the highest pressure drop because of extremely high entrance and exit losses due to the sudden changes of area in the system. 5D 6D 5D D 4 (W) (H) 3.14 AMCA 5.2 Pressure Drop SSFSD-211 5D Figure 5.2 .. 12 in. x 12 in. (305mm x 305mm) 24 in. x 24 in. (610mm x 610mm) 36 in. x 36 in. (914mm x 914mm) 12 in. x 48 in. (305mm x 1219mm) 48 in. x 12 in. (1219mm x 305mm) Velocity (fpm) Pressure Drop(in. wg) 500 0.04 1000 0.14 1500 0.31 2000 0.55 2500 0.86 3000 1.24 3500 1.69 4000 2.20 Velocity (fpm) Pressure Drop (in. wg) 500 0.02 1000 0.07 1500 0.16 2000 0.29 2500 0.45 3000 0.65 3500 0.89 4000 1.16 Velocity (fpm) Pressure Drop (in. wg) 500 0.01 1000 0.04 1500 0.09 2000 0.16 2500 0.25 3000 0.36 3500 0.49 4000 0.64 Velocity (fpm) Pressure Drop (in. wg) 500 0.0...