CURTAIN TYPE FIRE DAMPERS

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1 URTAIN TYPE FIRE urtain Fire Damper Basics Definition of a Fire Damper: The National Fire Protection Association (NFPA) Standard 9A defines a fire damper as "a device, installed in an air distribution system, that is designed to close automatically upon detection of heat, to interrupt migratory airflow, and to restrict the passage of flame." Although curtain fire dampers restrict flame and airflow passage as described in the NFPA definition, they are virtually transparent to heat and therefore ineffective for use in openings in fire-rated ceiling assemblies. See eiling Damper Basics, on page 3, for more details. Types of urtain Fire Dampers urtain type fire dampers are generally available in three configuration as follows: TYPE 'A' TYPE 'B' TYPE '' D Blades and frame in the airstream. Blades out of the airstream; ith blades out of airstream, provides better free area and resulting pressure drop characteristics than Type 'A', especially on smaller size dampers. Blades and frame out of the airstream; used mainly for transitioning to round or oval duct. Provides optimum pressure drop characteristics with blades and frame out of airstream. Openings in vertical fire separations ie: walls and partitions, require a vertical mount fire damper (duct runs horizontally). Gravity causes the blades to drop closed (static rated dampers). Openings in horizontal fire separations ie: floors, require a horizontal mount fire damper (duct runs vertically). orizontal mount fire dampers utilize springs to pull the blades closed. Dynamic rated fire dampers utilize closure springs in both vertical and horizontal applications to ensure the blades close fully under airflow conditions. Static Rated vs. Dynamic Rated Fire Dampers: Static fire dampers were designed for use in VA systems that shut down (fans off) in the event of a fire alarm. They have not been tested to ensure closure while air is moving in the duct. Dynamic fire dampers have been tested under specific airflow and static pressure conditions in order to ensure that the damper will close in today s VA designs that utilize 'fans on' smoke management systems. See Dynamic Fire Damper Selection Procedures in this section. Generally, a dynamic rated damper can be used in both static (fans off) or dynamic (fans on) type systems, but a static rated fire damper can only be used in a 'static' system (fans shut down during alarm). Did You Know?... Fire dampers must be mounted in a steel sleeve. The damper/sleeve assembly is held in place in the wall, partition or floor by use of retaining angles on each side of the wall etc. Ductwork shall connect to the sleeve on either side, as required, providing a connection that can 'break away' should the ductwork fall during a fire. This allows the damper/sleeve assembly to remain in the wall etc., maintaining the integrity of the fire barrier. NFPA 9A requires that fire barriers of less than 3 hours utilize a 1 1/2 hour rated fire damper. Fire barriers of 3 hours or more require a 3 hour rated fire damper. All fire dampers must be installed as per manufacturer s instructions. 9

2 DYNAMI FIRE SELETION PROEDURE Selection Procedure For Dynamic Fire Dampers Underwriters Laboratories Inc. Standard for Safety UL 555 evaluates fire dampers for use as either: (A) Fire dampers for static systems for VA systems that are automatically shut down in the event of a fire or for air transfer openings in walls or partitions; (B) Fire dampers for dynamic systems for VA systems that are operated in the event of a fire. Dynamic Fire Dampers are therefore required to close under airflow. All fire dampers must be labeled to indicate if they are to be used in static or dynamic systems. For dynamic rated dampers, this label must also indicate the maximum rated velocity through the open damper, and the maximum pressure differential across the closed damper. To attain approval for use in a dynamic system, UL Standard 555 requires that test dampers close three times (manually released) against their rated flow and shut-off pressure at ambient air temperature before heat is introduced to cause the fusible link to melt and close the damper one final time. All Manufactured Air Products dynamic curtain type fire dampers have been tested to 2 fpm (1.16 m/s) and 4" w.g. (1 kpa) static pressure. EXAMPLE #1: SINGLE SETION FIRE DAMPER To determine the maximum allowable airflow through the following damper: Type A damper 24" x 24". The maximum rated velocity is 2 fpm. 24" x 24" is 4 sq. ft. (idth in inches x eight in inches divided by 144 = sq. ft.), therefore, maximum allowable airflow is 2 fpm x 4 sq. ft. = 8, cfm. heck the maximum system pressure that could occur against a closed damper. Manufactured Air Products dynamic fire dampers have been tested and are rated to close against 4" w.g. 24" (61) EXAMPLE #2: MULTIPLE SETION FIRE DAMPER 24" (61) To determine the maximum allowable airflow through the following multi-section damper assembly: Type A damper 36" x 32" opening (the assembly will consist of four 18" x 16" dampers); The maximum rated velocity is 2 fpm. 36" x 32" is 8 sq. ft., therefore, 2 fpm x 8 sq. ft. = 16 cfm. This is the maximum allowable airflow that may be passed through the 36" x 32" opening. heck the maximum system pressure that could occur against a closed damper. Manufactured Air Products dynamic fire dampers have been tested and are rated to close against 4" w.g. 32" (813) 36" (914) 1

3 URTAIN TYPE FIRE Dynamic/Static urtain Type Fire Dampers MINIMUM AND MAXIMUM UL LASSIFIED SIZES SERIES/ MODEL TYPE SINGLE SETION MULTIPLE SETION ASSEMBLY MINIMUM SIZE MAXIMUM SIZE MAXIMUM SIZE INSTALLATION INSTALLATION INSTALLATION VERTIAL ORIZONTAL VERTIAL ORIZONTAL VERTIAL ORIZONTAL 6" x 6" 6" x 6" 24" x 24" 24" x 24" 1 72" x 24" or 36" x 48" FDDA A ontact Factory (152 x 152) (152 x 152) (61 x 61) (61 x 61) (1829 x 61 or 914 x 1219) 6" x 4" 6" x 4" 24" x 21" 24" x 21" 72" x 21" or 36" x 45" FDDB B (152 x 12) (152 x 12) (61 x 533) (61 x 533) (1829 x 533 or 914 x 1143) ontact Factory DYNAMI FDD Round R 4" dia. (12) 4" dia. (12) 2" dia. (58) 2" dia. (58) 34" dia. (864) 5" x 4" 5" x 4" 22" x 2" 22" x 2" 7" x 2" FDD Oval O (127 x 12) (127 x 12) (559 x 58) (559 x 58) (1778 x 58) ontact Factory 4" x 4" 4" x 4" 22" x 2" 22" x 2" 7" x 2" FDD Sq./Rect.SR (12 x 12) (12 x 12) (559 x 58) (559 x 58) (1778 x 58) STATI FDDA-12/14/16 A 6" x 6" 6" x 6" 24" x 24" 24" x 24" (152 x 152) (152 x 152) (61 x 61) (61 x 61) 6" x 4" 6" x 4" 24" x 21" 24" x 21" FDDB-12/14/16 B (127 x 12) (127 x 12) (559 x 58) (559 x 58) FDD-12/14/16 R 4" dia. (12) 4" dia. (12) 2" dia. (58) 2" dia. (58) FDA FDB A B 4" x 4" 4" x 4" 6" x 6" 6" x 6" 12" x 12" 2 12" x 6" (12 x 12) (12 x 12) (1524 x 1524) (1524 x 1524) (348 x 348) (2591 x 1524) 4" x 3" 4" x 4" 6" x 54" 6" x 54" 12" x 114" 12" x 54" (12 x 76) (12 x 12) (1524 x 1372) (1524 x 1372) (348 x 2896) (2591 x 1372) FD Round R 3" dia. (76) 4" dia. (12) 53" dia. (1346) 53" dia. (1346) 112" dia. (2845) 53" dia. (1346) FD Oval O FD Sq./Rect. SR FDA-12/14/16 A 4" x 3" 5" x 4" 58" x 53" 58" x 53" 118" x 112" 1" x 53" (12 x 76) (127 x 12) (1473 x 1346) (1473 x 1346) (2997 x 2845) (254 x 1346) 3" x 3" 4" x 4" 58" x 53" 58" x 53" 118" x 112" 1" x 53" (76 x 76) (12 x 12) (1473 x 1346) (1473 x 1346) (2997 x 2845) (254 x 1346) 4" x 4" 4" x 4" 48" x 48" 48" x 48" (12 x 12) (12 x 12) (1219 x 1219) (1219 x 1219) FDB-12/14/16 B 4" x 3" 4" x 4" 48" x 43" 48" x 43" (12 x 76) (12 x 12) (1219 x 192) (1219 x 192) FD-12/14/16 R 3" dia. (76) 4" dia. (12) 42" dia. (167) 42" dia. (167) FDTA FDTB A B 4" x 4" 4" x 4" 41" x 36" or 36" x 6" 41" x 36" (12 x 12) (12 x 12) (141 x 914) or (141 x 914) (914 x 1524) 4" x 3" 4" x 3" 41" x 3" or 36" x 5" 41" x 3" (12 x 76) (12 x 76) (141 x 762) or (141 x 762) (914 x 127) FDT Round R 3" dia. (76) 3" dia. (76) 34" dia. (864) 34" dia. (864) FDT Oval O FDT Sq./Rect.SR 4" x 3" 4" x 3" 39" x 29" 39" x 29" (12 x 76) (12 x 76) (991 x 737) (991 x 737) 3" x 3" 3" x 3" 39" x 29" or 34" x 49" 39" x 29" (76 x 76) (76 x 76) (991 x 737) or (991 x 737) (864 x 1245) Damper Types: Type A: Blades and frame in airstream. Type B: Blades out of airstream for minimal restriction of airflow. Type R: Round enclosure with blades and frame out of airstream for maximum free area. Type O: Oval enclosure with blades and frame out of airstream for maximum free area. Type SR: Square or rectangular enclosure with blades and frame out of airstream for maximum free area. 1 Maximum individual sections not to exceed 18" x 24" (457 x 61). 2 Maximum individual sections not to exceed 34" x 6" (864 x 1524). 11

4 DYNAMI FIRE 1 1/2 OUR STANDARD FRAME FOR USE IN DYNAMI SYSTEMS 1 1/2 OUR RATING UL 555 LASSIFIED Models: FDDA Type A FDDB Type B FDD Type R/O FDD Type SR Model FDDA The MAP FDD Series dynamic curtain fire dampers are UL/UL approved for use where building codes require protection of VA ductwork penetrations in walls, partitions or floors that have a fire resistance rating of 2 hours or less. lassified for use in dynamic systems (max. 2 4" w.g.) where the VA system remains operative in the event of a fire, the FDD Series features stainless steel closure springs for assured damper closure under airflow, corrosion resistant steel frame and blades for lasting performance, and choice of transition styles. ONSTRUTION DETAILS: FDDA FDDB FDD FDD (Type A) (Type B) (Type R/O) (Type SR) FRAME: 4 1/4" (18) wide, 4 1/4" (18) wide, 4 1/4" (18) wide, 4 1/4" (18) wide, 22 ga. (.85) roll- 22 ga. (.85) roll- 22 ga. (.85) roll- 22 ga. (.85) rollformed G6 formed G6 formed G6 formed G6 galvanized steel galvanized steel galvanized steel; galvanized steel; out of airstream out of airstream BLADES: urtain type, inter- Out of airstream. Out of airstream. Out of airstream. locking blades, 22 ga. urtain type, inter- urtain type, inter- urtain type, inter- (.85) roll-formed locking blades, 22 ga. locking blades, 22 ga. locking blades, 22 ga. G6 galvanized (.85) roll-formed (.85) roll-formed (.85) roll-formed steel G6 galvanized G6 galvanized G6 galvanized steel steel steel ENLOSURE: Type B Type Type N/A 22 ga. (.85) Round or Oval Square or Rect. galvanized steel 22 ga. (.85) 22 ga. (.85) galvanized steel galvanized steel FUSIBLE LINK: 165 F (74 ) Std. 165 F (74 ) Std. 165 F (74 ) Std. 165 F (74 ) Std. (UL Listed) 212 F (1 ) 212 F (1 ) 212 F (1 ) 212 F (1 ) available available available available BLADE Stainless steel Stainless steel Stainless steel Stainless steel LOSURE: closure springs closure springs closure springs closure springs and galvanized and galvanized and galvanized and galvanized steel locking ramps steel locking ramps steel locking ramps steel locking ramps MOUNTING: Vertical Vertical Vertical Vertical or or or or orizontal orizontal orizontal orizontal AVAILABLE Galvanized steel; Galvanized steel; Galvanized steel; Galvanized steel; SLEEVE: Specify SL Specify SL Specify SL Specify SL Option Option Option Option EIGT = NOMINAL DUT SIZE - 1/4" (6) 4 1/4" (18) INTERLOKING URTAIN BLADES UL LISTED FUSIBLE LINK (REPLAEABLE) URTAIN BLADE LOKING RAMP STAINLESS STEEL LOSURE SPRING ROLL-FORMED FRAME IDT = NOMINAL DUT SIZE - 1/4" (6) TYPE A: MODEL D11 Type A: Model FDDA 3" (76) 4 1/4" (18) VERTIAL MOUNT Vertical Mount DUT SIZE - 1/4" (6) For MIN./MAX. UL SIZES see chart on page 11. STAINLESS STEEL LOSURE SPRING URTAIN BLADE LOKING RAMP ORIZONTAL MOUNT orizontal Mount 12

5 DYNAMI FIRE 1 1/2 OUR = DUT SIZE + 1/8" (3) = DUT SIZE - 1/4" (6) Type B: Model FDDB D + 1 3/4" (44) Type R: Model FDD For overall damper dimensions see sizing chart on page 22. D + 1 3/4" (44) 1" Type O: Model FDD + 1 3/4" (44) Type SR ith ollar (Standard): Model FDD + 1 3/4" (44) Type SR ithout ollar: Model FDD DUT EIGT in inches (mm) DUT EIGT in inches (mm) PERFORMANE DATA: urtain type fire dampers impose minimal resistance to air flow in the system. The following charts indicate both free area for the different damper types and static pressure losses for various velocities. TYPE A DAMPER FREE AREA sq. ft. DUT IDT in inches (mm) (152) (35) (457) (61) (762) (914) (167) (1219)(1372) (1524) 6 (152) (35) (457) (61) (762) (914) (167) (1219) (1372) (1524) TYPE B DAMPER FREE AREA sq. ft. DUT IDT in inches (mm) (152) (35) (457) (61) (762) (914) (167) (1219)(1372) (1524) 6 (152) (35) (457) (61) (762) (914) (167) (1219) (1372) TYPE AVE FREE AREA EQUAL TO NOMINAL DUT AREA. To calculate Free Area of round duct: DIAMETER 2 x.545 = Free Area (sq ft.) To determine pressure drop across open damper, calculate free area velocity as shown, find velocity on curve and read across for s.p. differential. Free Area Velocity (fpm) = cfm Free Area Example: 1-36" x 24" Damper required for 8,5 cfm. (Type A) FAV = 85 = 17 fpm 5 sq. ft. 17 fpm located on the A curve shows a pressure drop of.7 in. wg. cfm = cubic feet per minute fpm = feet per minute velocity S.P. = static pressure in inches water gauge FAV = Free Area Velocity Imperial System Shown To convert to SI (metric) system: Multiply cfm by.4719 for liters per second fpm by.58 for meters per second in. wg. by.2486 for kilopascals sq. ft. by.929 for square meters Static Pressure.1.9 Drop.8 (in. wg.) FREE AREA VELOITY V.S. STATI TI PRESSURE DROP Free Area Velocity (fpm) 4 5 TYPE 'A' TYPE 'B' TYPE '' O TO SPEIFY SUGGESTED SPEIFIATION: Provide and install, as shown on plans and as described in specifications, Dynamic rated fire dampers as manufactured by Manufactured Air Products, meeting or exceeding the following criteria: Fire dampers shall meet the requirements of NFPA 9A and shall be manufactured, tested and labeled in accordance with UL 555 Safety Standard for Fire Dampers - Sixth Edition, June 1999, including Dynamic losure Test (formerly the Operation Test). Dampers shall be classified for dynamic closure against an airflow velocity of 2 fpm (1.16 m/s) at 4" w.g. (1 kpa) static pressure differential (across closed damper). Each fire damper shall bear a UL 1 1/2 hour fire resistance rating label in addition to label verifying the airflow and closure pressure ratings as established by the Dynamic losure Test. Each fire damper shall also be marked with the words "For use in dynamic systems". Dampers marked "For use in static systems only" are not acceptable. Each fire damper shall be complete with a 165 F (74 ) UL Listed fusible link. Fire dampers shall each include a steel sleeve of appropriate length/gauge and retaining angles, supplied by damper manufacturer to ensure proper installation in accordance with damper manufacturer s instructions. ontractor shall provide and install an access door at each fire damper, of appropriate size to allow for inspection, testing and fusible link replacement. Data submitted for approval shall include confirmation of UL qualifications in addition to manufacturer s installation instructions. Each shipment of fire dampers shall include same installation instructions. Dynamic rated fire dampers shall be Manufactured Air Products Models FDDA (Type A), FDDB (Type B), FDD (Type ). 13

6 DYNAMI FIRE 1 1/2 OUR INTEGRAL SLEEVE DYNAMI FIRE (1 1/2 OUR LISTING) FOR USE IN DYNAMI SYSTEMS. MAP integral sleeve fire dampers ensure proper damper mounting in sleeve and can be shipped direct to job site for immediate installation, eliminating costly and inconvenient shop handling. All units are constructed with 22 ga. (.85) roll-formed G6 galvanized steel integral sleeve available in 12" (35), 14" (356) or 16" (46) length. Optional 'Quick-Set' retaining angles are available to complete the installation package. TYPE A: MODEL FDDA - 12/14/16 TYPE B: MODEL FDDB - 12/14/16 A Type 'A' Blades and frame in the airstream. Model: FDDA Min. size - 6" x 6" (152 x 152) Max. size - 24" x 24" (61 x 61) L Type 'B' Blades out of airstream. Model: FDDB Min. size - 6" x 4" (152 x 12) Max. size - 24" x 21" (61 x 533) L Damper eight () Dim. 'A' 5" thru 17" (127 thru 432) 2" (51) 18" thru 21" (457 thru 533) 3" (76) ONSTRUTION DETAILS: INTEGRAL SLEEVE/FRAME: 22 ga. (.85) roll-formed G6 galvanized steel. FDDxx -12 Length 12" (35) FDDxx -14 Length 14" (356) FDDxx -16 Length 16" (46) BLADES: urtain type interlocking blades, 22 ga. (.85) roll-formed G6 galvanized steel. FUSIBLE LINK: 165 F (74 ) standard. UL Listed. 212 F (1 ) available. BLADE LOSURE: Vertical and orizontal mount. Stainless steel closure springs and galvanized steel locking ramps. TYPE R: MODEL FDD - 12/14/16 D 1" (25) D + 2" (51) D + 2" (51) Type 'R' Round transition collars. Blades partially in airstream Model: FDD Min. size - 4" dia. (12) Max. size - 2" dia. (58) L 14

7 DYNAMI FIRE 1 1/2 OUR O TO SPEIFY Intergral Sleeve Dynamic Fire Dampers Models: FDDA - 12/14/16 FDDB - 12/14/16 FDD - 12/14/16 SUGGESTED SPEIFIATION: Provide and install, as shown on plans and as described in specifications, Dynamic rated fire dampers as manufactured by Manufactured Air Products, meeting or exceeding the following criteria: Fire dampers shall meet the requirements of NFPA 9A and shall be manufactured, tested and labeled in accordance with UL 555 Safety Standard for Fire Dampers - Sixth Edition, June 1999, including Dynamic losure Test (formerly the Operation Test). Dampers shall be classified for dynamic closure against an airflow velocity of 2 fpm (1.16 m/s) at 4" w.g. (1 kpa) static pressure differential (across closed damper). Each fire damper shall bear a UL 1 1/2 hour fire resistance rating label in addition to label verifying the airflow and closure pressure ratings as established by the Dynamic losure Test. Each fire damper shall also be marked with the words "For use in dynamic systems". Dampers marked "For use in static systems only" are not acceptable. Each fire damper shall be complete with a 165 F (74 ) UL Listed fusible link. In addition, each fire damper shall be provided from the factory in an integral 22 ga. (.85) galvanized steel sleeve of (specifier select one) 12" (35), 14" (356) or 16" (46) in length complete with Manufactured Air Products 'Quick-Set' retaining angles, to ensure proper installation in accordance with damper manufacturer s instructions. ontractor shall provide and install an access door at each fire damper, of appropriate size to allow for inspection, testing and fusible link replacement. Data submitted for approval shall include confirmation of UL qualifications in addition to manufacturer s installation instructions. Each shipment of fire dampers shall include same installation instructions. Integral sleeve Dynamic rated fire dampers shall be Manufactured Air Products Models FDDA-12 or 14 or 16 (Type A), FDDB-12 or 14 or 16 (Type B), FDD-12 or 14 or 16 (Type ). 15

8 STATI FIRE 1 1/2 OUR STANDARD FRAME FOR USE IN STATI SYSTEMS 1 1/2 OUR RATING UL 555 LASSIFIED Models: FDA Type A FDB Type B FD Type Model FDA The MAP FD Series curtain fire dampers, for use in static "fans off" systems where the VA system shuts down in the event of a fire, are UL/UL approved to provide protection of VA ductwork penetrations in walls, partitions or floors that have a fire resistance rating of 2 hours or less. The FD Series features corrosion resistant steel frame and blades for performance that lasts, and a choice of transition styles and factory installed sleeves to suit duct size, making installation fast and simple. ONSTRUTION DETAILS: FDA FDB FD (Type A) (Type B) (Type ) FRAME: 4 1/4" (18) wide, 4 1/4" (18) wide, 4 1/4" (18) wide, 22 ga. (.85) roll- 22 ga. (.85) roll- 22 ga. (.85) rollformed G6 formed G6 formed G6 galvanized steel galvanized steel galvanized steel; out of airstream BLADES: urtain type, inter- Out of airstream. Out of airstream. locking blades, 22 ga. urtain type, inter- urtain type, inter- (.85) roll-formed locking blades, 22 ga. locking blades, 22 ga. G6 galvanized (.85) roll-formed (.85) roll-formed steel G6 galvanized G6 galvanized steel steel ENLOSURE: Type B Type N/A 22 ga. (.85) Round or Oval galvanized steel 22 ga. (.85) galvanized steel FUSIBLE LINK: 165 F (74 ) Std. 165 F (74 ) Std. 165 F (74 ) Std. (UL Listed) 212 F (1 ) 212 F (1 ) 212 F (1 ) available available available BLADE Vertical mount; gravity Vertical mount; gravity Vertical mount; gravity LOSURE: orizontal mount; orizontal mount; orizontal mount; stainless steel closure stainless steel closure stainless steel closure springs with galvanized springs with galvanized springs with galvanized steel locking ramps steel locking ramps steel locking ramps MOUNTING: Vertical Vertical Vertical or or or orizontal orizontal orizontal INTEGRAL SLEEVE: See Model See Model See Model 22 ga (.85) x12" (35) long FDAx-12 FDBx-12 FDx ga (.85) x14" (356) long FDAx-14 FDBx-14 FDx ga (.85) x16" (46) long FDAx-16 FDBx-16 FDx-16 For MIN./MAX. UL SIZES see chart on page 11. EIGT = NOMINAL DUT SIZE - 1/4" (6) 4 1/4" (18) INTERLOKING URTAIN BLADES UL LISTED FUSIBLE LINK (REPLAEABLE) ROLL-FORMED FRAME IDT = NOMINAL DUT SIZE - 1/4" (6) TYPE A: MODEL 11 3" (76) MODEL 11V VERTIAL MOUNT STAINLESS STEEL LOSURE SPRING Type A: Model FDA 4 1/4" (18) Vertical Mount URTAIN BLADE LOKING RAMP orizontal Mount DUT SIZE - 1/4" (6) MODEL 11 ORIZONTAL MOUNT 16

9 STATI FIRE 1 1/2 OUR = DUT SIZE + 1/8" (3) = DUT SIZE - 1/4" (6) D + 1 3/4" (44) + 1 3/4" (44) + 1 3/4" (44) Type B: Model FDB D + 1 3/4" (44) Type R: Model FD Type O: Model FD For overall damper dimensions see sizing chart on page 22. 1" Type SR ith ollar (Standard): Model FD Type SR ithout ollar: Model FD PERFORMANE DATA: urtain type fire dampers impose minimal resistance to air flow in the system. The following charts indicate both free area for the different damper types and static pressure losses for various velocities. DUT EIGT in inches (mm) DUT EIGT in inches (mm) TYPE A DAMPER FREE AREA sq. ft. DUT IDT in inches (mm) (152) (35) (457) (61) (762) (914) (167) (1219)(1372) (1524) 6 (152) (35) (457) (61) (762) (914) (167) (1219) (1372) (1524) TYPE B DAMPER FREE AREA sq. ft. DUT IDT in inches (mm) (152) (35) (457) (61) (762) (914) (167) (1219)(1372) (1524) 6 (152) (35) (457) (61) (762) (914) (167) (1219) (1372) TYPE AVE FREE AREA EQUAL TO NOMINAL DUT AREA. To calculate Free Area of round duct: DIAMETER 2 x.545 = Free Area (sq ft.) To determine pressure drop across open damper, calculate free area velocity as shown, find velocity on curve and read across for s.p. differential. Free Area Velocity (fpm) = cfm Free Area.4.3 Example: 1-36 x 24 Damper required for.2 8,5 cfm. (Type A) FAV = 85 = 17 fpm 5 sq. ft. Static Pressure.1 17 fpm located on the A curve shows a pressure drop of.7 in. wg. cfm = cubic feet per minute fpm = feet per minute velocity S.P. = static pressure in inches water gauge FAV = Free Area Velocity Imperial System Shown To convert to SI (metric) system: Multiply cfm by.4719 for liters per second fpm by.58 for meters per second in. wg. by.2486 for kilopascals sq. ft. by.929 for square meters Drop (in. wg.) FREE AREA VELOITY V.S. STATI TI PRESSURE DROP Free Area Velocity (fpm) 4 5 TYPE 'A' TYPE 'B' TYPE '' O TO SPEIFY SUGGESTED SPEIFIATION: Provide and install, as shown on plans and as described in specifications, fire dampers as manufactured by Manufactured Air Products, meeting or exceeding the following criteria: Fire dampers shall be manufactured, tested and labeled in accordance with UL 555 Safety Standard for Fire Dampers - Sixth Edition, June 1999, and shall have 1 1/2 hour fire resistance rating. Each fire damper shall bear a UL label verifying fire resistance rating in addition to intended mounting position. Fire dampers shall be suitably constructed for vertical or horizontal installation as required for each specific location. Each fire damper shall be complete with a (specifier select one) 165 F (74 ) or 212 F (1 ) UL Listed fusible link. Fire dampers shall each include a steel sleeve of appropriate length/gauge and retaining angles, supplied by damper manufacturer to ensure proper installation in accordance with damper manufacturer s instructions. ontractor shall provide and install an access door at each fire damper, of appropriate size to allow for inspection, testing and fusible link replacement. Information submitted for approval shall include confirmation of UL qualifications, pressure drop data and manufacturer s installation instructions. Each shipment of fire dampers shall include same installation instructions. Fire dampers shall be Manufactured Air Products Models FDA (Type A), FDB (Type B), FD (Type ). 17

10 STATI FIRE 1 1/2 OUR Integral Sleeve Static Fire Dampers (1 1/2 our Listing) For Use in Static Systems MAP integral sleeve fire dampers ensure proper damper mounting in sleeve and can be shipped direct to job site for immediate installation, eliminating costly and inconvenient shop handling. All units are constructed with 22 ga. (.85) roll-formed G6 galvanized steel integral sleeve available in 12" (35), 14" (356) or 16" (46) length. Optional 'Quick- Set' retaining angles are available to complete the installation package. Type A: Model FDA - 12/14/16 Type B: Model FDB - 12/14/16 A L L Type 'A' Blades and frame in the airstream. Models: FDAV Vertical and FDA orizontal Min. size - Vertical or orizontal 4" x 4" (12 x 12) Max. size -Vertical or orizontal 48" x 48" (1219 x 1219) Type 'B' Blades out of airstream. Models: FDBV Vertical and FDB orizontal Min. size - Vertical 4" x 3" (12 x 76) orizontal 4" x 4" (12 x 12) Max. size -Vertical or orizontal 48" x 43" (1219 x 192) Damper eight () Dim. 'A' 5" thru 17" (127 thru 432) 2" (51) 18" thru 27" (457 thru 686) 3" (76) 28" thru 36"(711 thru 914) 4" (12) 37" thru 43" (94 thru 192) 5" (127) ONSTRUTION DETAILS: INTEGRAL SLEEVE/FRAME: 22 ga. (.85) roll-formed G6 galvanized steel. FDxx -12 Length 12" (35) FDxx -14 Length 14" (356) FDxx -16 Length 16" (46) BLADES: urtain type interlocking blades, 22 ga. (.85) roll-formed G6 galvanized steel. FUSIBLE LINK: 165 F (74 ) standard. UL Listed. 212 F (1 ) available. BLADE LOSURE: Vertical mount model; gravity. orizontal mount models are equipped with stainless steel closure springs and galvanized steel locking ramps. Type : Model FD - 12/14/16 D 1" (25) D + 2" (51) L D + 2" (51) Type 'R' Round transition collars. Blades partially in airstream. Models: FDV Vertical and FD orizontal Min. size - Vertical 3" dia. (76) orizontal 4" dia. (12) Max. size - Vertical or orizontal 42" dia. (167) 18

11 STATI FIRE 1 1/2 OUR Integral Sleeve Static Fire Dampers Models: FDAx - 12/14/16 FDBx - 12/14/16 FDx - 12/14/16 O TO SPEIFY SUGGESTED SPEIFIATION: Provide and install, as shown on plans and as described in specifications, integral sleeve fire dampers as manufactured by Manufactured Air Products, meeting or exceeding the following criteria: Fire dampers shall be manufactured, tested and labeled in accordance with UL 555 Safety Standard for Fire Dampers - Sixth Edition, June 1999, and shall have a 1 1/2 hour fire resistance rating. Each fire damper shall bear a UL label verifying fire resistance rating in addition to intended mounting position. Fire dampers shall be suitably constructed for vertical or horizontal installation as required for each specific location. Each fire damper shall be complete with a (specifier select one) 165 F (74 ) or 212 F (1 ) UL Listed fusible link. In addition, each fire damper shall be provided from the factory in an integral 22 ga. (.85) galvanized steel sleeve of (specifier select one) 12" (35), 14" (356) or 16" (46) in length complete with Manufactured Air Products 'Quick-Set' retaining angles, to ensure proper installation in accordance with damper manufacturer s instructions. ontractor shall provide and install an access door at each fire damper, of appropriate size to allow for inspection, testing and fusible link replacement. Information submitted for approval shall include confirmation of UL qualifications, pressure drop data, and manufacturer s installation instructions. Each shipment of fire dampers shall include same installation instructions. Integral sleeve fire dampers shall be Manufactured Air Products Models FDAx-12 or 14 or 16 (Type A), FDBx-12 or 14 or 16 (Type B), FDx-12 or 14 or 16 (Type ). 19

12 STATI FIRE TINLINE 1 1/2 OUR TINLINE FRAME FOR USE IN STATI SYSTEMS 1 1/2 OUR RATING UL 555 LASSIFIED Models: FDTA Type A FDTB Type B FDT Type Model FDTA The MAP FDT Series Thinline curtain fire dampers are UL/UL approved for use where building codes require the protection of VA ductwork penetrations in walls, partitions or floors that have a fire resistance rating of 2 hours or less. The FDT Series is classified for use only in static "fans off" systems where the VA system is automatically shut down in the event of a fire alarm. The FDT Series Thinline dampers are only 2" (51) deep making them ideal for installation in narrow fire rated partitions, transfer duct openings, behind grilles or in any other application where space is limited. The FDT Series feature corrosion resistant steel frame and blades for lasting performance, and choice of transition styles and factory installed sleeves to suit duct size, making installation fast and simple. ONSTRUTION DETAILS: FDTA FDTB FDT (Type A) (Type B) (Type ) FRAME: 2" (51) wide, 2" (51) wide, 2" (51) wide, 22 ga. (.85) roll- 22 ga. (.85) roll- 22 ga. (.85) rollformed G6 formed G6 formed G6 galvanized steel galvanized steel galvanized steel; out of airstream BLADES: urtain type, inter- Out of airstream. Out of airstream. locking blades, 22 ga. urtain type, inter- urtain type, inter- (.85) roll-formed locking blades, 22 ga. locking blades, 22 ga. G6 galvanized (.85) roll-formed (.85) roll-formed steel G6 galvanized G6 galvanized steel steel ENLOSURE: Type B Type N/A 22 ga. (.85) Round or Oval galvanized steel 22 ga. (.85) galvanized steel FUSIBLE LINK: 165 F (74 ) Std. 165 F (74 ) Std. 165 F (74 ) Std. (UL Listed) 212 F (1 ) 212 F (1 ) 212 F (1 ) available available available BLADE Vertical mount; gravity Vertical mount; gravity Vertical mount; gravity LOSURE: orizontal mount; orizontal mount; orizontal mount; stainless steel closure stainless steel closure stainless steel closure springs with galvanized springs with galvanized springs with galvanized steel locking ramps steel locking ramps steel locking ramps MOUNTING: Vertical Vertical Vertical or or or orizontal orizontal orizontal AVAILABLE Galvanized steel; Galvanized steel; Galvanized steel; SLEEVE: Specify SL Specify SL Specify SL Option Option Option 2" (51) EIGT = NOMINAL DUT SIZE - 1/4" (6) INTERLOKING URTAIN BLADES UL LISTED FUSIBLE LINK (REPLAEABLE) ROLL-FORMED FRAME IDT = NOMINAL DUT SIZE - 1/4" (6) TYPE A: MODEL 21 Type A: Model FDTA 2" (51) DUT SIZE - 1/4" (6) MODEL 21V VERTIAL MOUNT Vertical Mount For MIN./MAX. UL SIZES see chart on page 11. STAINLESS STEEL LOSURE SPRING URTAIN BLADE LOKING RAMP MODEL 21 ORIZONTAL MOUNT orizontal Mount 2

13 STATI FIRE TINLINE 1 1/2 OUR 2" (51) = DUT SIZE + 1/8" (3) D + 1 3/4" (44) IDT = NOMINAL DUT SIZE - 1/4" (6) Type B: Model FDTB D + 1 3/4" (44) Type R: Model FDT For overall damper dimensions, see sizing chart on page 23. 1" Type O: Model FDT + 1 3/4" (44) Type SR ith ollar (Standard): Model FDT + 1 3/4" (44) Type SR ithout ollar: Model FDT DUT EIGT in inches (mm) DUT EIGT in inches (mm) PERFORMANE DATA: urtain type fire dampers impose minimal resistance to air flow in the system. The following charts indicate both free area for the different damper types and static pressure losses for various velocities. TYPE A TINLINE DAMPER FREE AREA sq. ft. DUT IDT in inches (mm) (152) (35) (457) (61) (762) (914) (116) 6 (152) (35) (457) (61) (762) (914) (167) (1219) (1372) (1524) TYPE B TINLINE DAMPER FREE AREA sq. ft. DUT IDT in inches (mm) (152) (35) (457) (61) (762) (914) (116) 6 (152) (35) (457) (61) (762) (914) (167) (1219) TYPE AVE FREE AREA EQUAL TO NOMINAL DUT AREA. To calculate Free Area of round duct: DIAMETER 2 x.545 = Free Area (sq ft.) To determine pressure drop across open damper, calculate free area velocity as shown, find velocity on curve and read across for s.p. differential. Free Area Velocity (fpm) = cfm Free Area Example: 1-36" x 36" Damper required for 14, cfm. (Type A) FAV = 14, = 2 fpm 7 sq. ft. 2 fpm located on the A curve shows a pressure drop of.12 in. wg. cfm = cubic feet per minute fpm = feet per minute velocity S.P. = static pressure in inches water gauge FAV = Free Area Velocity Imperial System Shown To convert to SI (metric) system: Multiply cfm by.4719 for liters per second fpm by.58 for meters per second in. wg. by.2486 for kilopascals sq. ft. by.929 for square meters O TO SPEIFY Static Pressure.1.9 Drop.8 (in. wg.) FREE AREA VELOITY V.S. STATI TI PRESSURE DROP Free Area Velocity (fpm) 4 5 TYPE 'A' TYPE 'B' TYPE '' SUGGESTED SPEIFIATION: Provide and install, as shown on plans and as described in specifications, Thinline fire dampers as manufactured by Manufactured Air Products, meeting or exceeding the following criteria: Fire dampers shall be manufactured, tested and labeled in accordance with UL 555 Safety Standard for Fire Dampers - Sixth Edition, June 1999, and shall have 1 1/2 hour fire resistance rating. Each fire damper shall bear a UL label verifying fire resistance rating in addition to intended mounting position. Fire dampers shall be suitably constructed for vertical or horizontal installation as required for each specific location. Thinline style fire damper frame shall be a maximum of 2" (51) in width, roll-formed from G6 galvanized steel. Blades shall be Thinline type, roll-formed G6 galvanized steel. Each fire damper shall be complete with a (specifier select one) 165 F (74 ) or 212 F (1 ) UL Listed fusible link. Fire dampers shall each include a steel sleeve of appropriate length/gauge and retaining angles, supplied by damper manufacturer to ensure proper installation in accordance with damper manufacturer s instructions. ontractor shall provide and install an access door at locations where the fire damper cannot be accessed through grille or duct end opening, to allow for inspection, testing and fusible link replacement. Information submitted for approval shall include confirmation of UL qualifications, pressure drop data and manufacturer s installation instructions. Each shipment of fire dampers shall include same installation instructions. Thinline fire dampers shall be Manufactured Air Products Models FDTA (Type A), FDTB (Type B), FDT (Type ). 21

14 SIZING ART STANDARD FRAME Fire Damper Sizing hart For All Standard 4 1/4" (18) Frame Fire Dampers: Series/ Models: FDD & FD Use the following chart to determine overall dimensions for Type A, B, and curtain type fire dampers: IG AT EIGT IG AT EIGT OVERALL EIGT DUT OPENING OVERALL EIGT DUT OPENING 1" OVERALL EIGT TYPE A TYPE B TYPE TYPE A DUT OPENING EIGT OVERALL EIGT IMPERIAL METRI IMPERIAL METRI 4" 6" 1 mm 1525 mm DUT EIGT 1/4" DUT EIGT 6 mm NOTE: TYPE A DAMPER OVERALL IDT = DUT OPENING 1/4" (6 mm) 3" 17" mm DUT EIGT + 2 1/8" DUT EIGT + 54 mm 18" 27" mm " + 3 1/8" " + 79 mm 28" 36" mm " + 4 1/8" " + 15 mm TYPE B 37" 45" mm " + 5 1/8" " + 13 mm 46" 54" mm " + 6 1/8" " mm NOTE: TYPE B DAMPER OVERALL IDT = DUT OPENING 1/4" (6 mm) 3" 5" mm DUT EIGT + 1 3/4" DUT EIGT + 44 mm 6" 17" mm DUT EIGT + 2 3/4" DUT EIGT + 7 mm 18" 27" mm " + 3 3/4" " + 95 mm TYPE 28" 36" 7 9 mm " + 4 3/4" " mm 37" 45" mm " + 5 3/4" " mm 46" 53" mm " + 6 3/4" " mm NOTE: TYPE DAMPER OVERALL IDT = DUT OPENING + 1 3/4" (44 mm) 22

15 SIZING ART TINLINE FRAME Fire Damper Sizing hart For Thinline 2" (51) Frame Fire Dampers: Series/ Model: FDT Use the following chart to determine overall dimensions for Type A, B, and curtain type fire dampers: IG AT EIGT IG AT EIGT OVERALL EIGT DUT OPENING OVERALL EIGT DUT OPENING OVERALL EIGT 1" TYPE A TYPE B TYPE DUT OPENING EIGT OVERALL EIGT IMPERIAL METRI IMPERIAL METRI TYPE A 4" 6" 1 mm 1525 mm DUT EIGT 1/4" DUT EIGT 6 mm NOTE: TYPE A DAMPER OVERALL IDT = DUT OPENING 1/4" (6 mm) 3" 9" mm DUT EIGT + 2 1/8" DUT EIGT + 54 mm 1" 15" mm " + 3 1/8" " + 79 mm 16" 19" mm " + 4 1/8" " + 15 mm 2" 25" mm " + 5 1/8" " + 13 mm TYPE B 26" 31" mm " + 6 1/8" " mm 32" 34" 8 85 mm " + 7 1/8" " mm 35" 4" mm " + 8 1/8" " + 26 mm 41" 46" mm " + 9 1/8" " mm 47" 5" mm " + 1 1/8" " mm NOTE: TYPE B DAMPER OVERALL IDT = DUT OPENING 1/4" (6 mm) 3" 9" mm DUT EIGT + 2 3/4" DUT EIGT + 7 mm 1" 15" mm " + 3 3/4" " + 95 mm 16" 19" mm " + 4 3/4" " mm 2" 25" mm " + 5 3/4" " mm TYPE 26" 31" mm " + 6 3/4" " mm 32" 34" 8 85 mm " + 7 3/4" " mm 35" 4" mm " + 8 3/4" " mm 41" 46" mm " + 9 3/4" " mm 47" 49" mm " + 1 3/4" " mm NOTE: TYPE DAMPER OVERALL IDT = DUT OPENING + 1 3/4" (44 mm) 23

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