ページ1に含まれる内容の要旨 
                    
                        model Fsd-311V
Combination FIRe smOKe dAmPeRs
Steel Airfoil Blades
UL 555S Leakage Class I 
APPLICATION
Model FSD-311V is a vertical blade class I leakage rated combi- UL555 1 1/2 Hour Fire Resistance Rating
nation fire smoke damper. High strength airfoil blades ensure the 
Model FSD-311V meets the requirements for fire 
lowest resistance to airflow in HVAC systems with velocities to 4000 
dampers, smoke dampers and combination fire 
fpm (20.3m/s) and 4 in. wg (1.0 kPa).
smoke dampers establishe
                    
                    ページ2に含まれる内容の要旨 
                    
                        Pressure drop data Fsd-311V This pressure drop testing was conducted in accordance with AMCA Standard 500-D using the three configurations shown. All  3 3   data has been corrected to represent standard air at a density of .075 lb/ft (1.2 kg/m ). 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  s
                    
                    ページ3に含まれる内容の要旨 
                    
                        5D 6D AmCA 5.2 Pressure drop Fsd-311V 5D 4 (W) (H) D 3.14 * Sizes are in inches.  12 in. x 12 in. (305mm x 305mm) 24 in. x 24 in. (610mm x 610mm) 36in. x 36 in. (914mm x 914mm) 12in. X 48 in. (305mm x 1219mm) 48 in. x 12 in. (1219mm x 305mm)  Velocity  Pressure Drop       Velocity  Pressure Drop       Velocity  Pressure Drop       Velocity  Pressure Drop       Velocity  Pressure Drop        (fpm) (in. wg) (fpm) (in. wg) (fpm) (in. wg) (fpm) (in. wg) (fpm) (in. wg)  500 0.03 500 0.01 500 0.01 500
                    
                    ページ4に含まれる内容の要旨 
                    
                        AmCA 5.3 Pressure drop Fsd-311V 5D 6D 5D 4 (W) (H) D 3.14 * Sizes are in inches.  12 in. x 12 in. (305mm x 305mm) 24 in. x 24 in. (610mm x 610mm) 36in. x 36 in. (914mm x 914mm) 12in. X 48 in. (305mm x 1219mm) 48 in. x 12 in. (1219mm x 305mm) Pressure Drop        Pressure Drop        Pressure Drop        Pressure Drop        Pressure Drop         Velocity (fpm) (in. wg) Velocity (fpm) (in. wg) Velocity (fpm) (in. wg)Velocity (fpm) (in. wg)Velocity (fpm) (in. wg) 500 0.01 500 0.01 500 0.01 500 0.0
                    
                    ページ5に含まれる内容の要旨 
                    
                        5D 6D 5D 4 (W) (H) D 3.14 AmCA 5.5 Pressure drop Fsd-311V * Sizes are in inches.  12 in. x 12 in. (305mm x 305mm) 24 in. x 24 in. (610mm x 610mm) 36in. x 36 in. (914mm x 914mm) 12in. X 48 in. (305mm x 1219mm) 48 in. x 12 in. (1219mm x 305mm) Velocity Pressure Drop         Velocity Pressure Drop         Velocity Pressure Drop         Velocity Pressure Drop         Velocity Pressure Drop          (fpm) (in. wg) (fpm) (in. wg) (fpm) (in. wg) (fpm) (in. wg) (fpm) (in. wg) 500 0.04 500 0.03 5000.0350
                    
                    ページ6に含まれる内容の要旨 
                    
                          Transitioned damper dimensions When a combination fire smoke damper is being used in conjunction with round or oval ductwork, the FSD-311V can be  supplied in a factory sleeve with round or oval transitions on both ends of the sleeve. Dampers should be ordered to the duct  dimensions. Drawings below show overall damper size.   D* +   2 in. (51mm) +T  s  W* +  2 in. (51mm)+T  s     W* +  2 in. (51mm)+T     s  D* +   2 in. (51mm)+T  s  H* +   2 in. (51mm)+T  H* +   2 in. (51mm)+T s  s  H*  1 H*