air handling intelligence FIRE SFETY Fire Damper in libraries of EI 10 (v e -i o) S EN 13501-3+1:01 EN 15650:0 Certificate of Conformity 1488-CPD-081/W EUROPEN PTENT PPLICTION EP 01158318 GOLD MEDL MTP 01 FUNCTION The fire dampers are designed for buildings where in the event of a fire the affected zone should be isolated from the other zones, by among others, closing fire dampers, while the ventilation and air conditioning systems should operate normally in the other non-affected zones of the building. The performance criteria are satisfied in case of fire from inside to outside as well as outside to inside or both, respectively. PPLICTION The fire dampers installation is allowed within a duct passing through a vertical building partition or directly in vertical building partition. The most common applications of the dampers are protection of elevator shafts and ventilation ducts in garages. Blades of dampers in open position do not project beyond the damper contour of 10 mm body, which enables the damper installation just behind elbow, silencer or other component of ventilation system. Once the blades of the damper have been closed, the fire-affected zone is isolated, while fire resistance of partition wall is maintained. Closing the fire damper resulting from rise in temperature in ventilation duct above 7 C or 5 C and activation of fuse otherwise by control signal transmitted from the fire alarm control panel if damper is equipped with actuator. DESCRIPTION The fire damper consists of: - rectangular casing made of galvanized steel sheet alternatively stainless or acid proof steel, - movable damper blades made of fire resistant board, - combination of smoke and fire proof seals of damper blades, - control mechanism and optional EMS module enabling fire damper assessment with the TZ tester. FIRE SFETY Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów ódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 11
SELECTION L 0 150 00 50 0 315 350 400 450 500 550 600 6 650 700 750 800 850 00 Number of blades 00 50 0.6 1.56.16.76 3.36 3.54 3.6 4.56 5.16 5.76 6.36 6.6 7.3 7.56 8.16 8.76.36.6.56 S 5. 6.6 6.6 8.0 8.0 8.0.4.4.. 11.5 11.5 11.5 1.8 1.8 14.1 14.1 15.4 15.4 M 1.04 1.6.34. 3.64 3.84 4. 4.4 5.5 6.4 6.8 7.54 7.3 8.1 8.84.4.14.7 11.44 3 S 6.0 7.5 7.5.1.1.1.7.7 11.5 11.5 1. 1. 1. 14.4 14.4 15.8 15.8 17.3 17.3 M 0 1.44.34 3.4 4.14 5.04 5.31 5.4 6.84 7.74 8.64.54.44.8 11.34 1.4 13.14 14.04 14.4 15.84 3 S 6.6 8.3 8.3.1.1.1 11. 11. 1.8 1.8 14.4 14.4 14.4 16.0 16.0 17.7 17.7 1.3 1.3 M 350 400 450 1.5.47 3.4 4.37 5.3 5.61 6.7 7. 8.17.1.07 11.0 11.5 11.7 1. 13.87 14.8 15.77 16.7 4 S 7..1.1 11.0 11.0 11.0 1. 1. 13. 13. 15.7 15.7 15.7 17.5 17.5 1.3 1.3 1.1 1.1 M 1. 3.1 4.3 5.5 6.7 7.08 7..1.3 11.5 1.7 13. 14.64 15.1 16.3 17.5 18.7 1. 1.1 4 S 7.8.. 1.0 1.0 1.0 14.1 14.1 15. 15. 17. 17. 17. 1. 1. 1. 1. 3.1 3.1 M.00 3.5 4.50 5.75 7.00 7.38 8.5.50.75 1.00 13.5 14.50 15.5 15.75 17.00 18.5 1.50 0.75.00 5 S 8.5.8.8 13.1 13.1 13.1 15.4 15.4 16.5 16.5 18.6 18.6 18.6 0.8 0.8.. 5.0 5.0 M 500.40 3.0 5.40 6.0 8.40 8.85.0 11.40 1.0 14.40 15.0 17.40 18. 18.0 0.40 1.0 3.40 4.0 6.40 5 S.1 11.6 11.6 14.1 14.1 14.1 16.6 16.6 17.8 17.8 0.1 0.1 0.1.4.4 4.7 4.7 7.0 7.0 M 550.48 4.03 5.58 7.13 8.68.15.3 11.78 13.33 14.88 16.43 17.8 18.1 1.53 1.08.63 4.18 5.73 7.8 6 S.7 1.4 1.4 15.0 15.0 15.0 17.7 17.7 1.0 1.0 1.4 1.4 1.4 3. 3. 6.3 6.3 8.8 8.8 M 600 650 700.88 4.68 6.48 8.8.08.6 11.88 13.68 15.48 17.8 1.08 0.88 1.6.68 4.48 6.8 8.08.88 31.68 6 S.4 13. 13. 16.0 16.0 16.0 18. 18. 0.3 0.3... 5.5 5.5 8. 8..8.8 M.6 4.81 6.66 8.51.36. 1.1 14.06 15.1 17.76 1.61 1.46.57 3.31 5.16 7.01 8.86.71 3.56 7 S 11.1 14.1 14.1 17.1 17.1 17.1 0.1 0.1 1.6 1.6 4.4 4.4 4.4 7.1 7.1 3.7 3.7 M 3.36 5.46 7.56.66 11.76 1.3 13.86 15.6 18.06 0.16.6 4.36 5.6 6.46 8.56.66 3.76 34.86 36.6 7 S 11.7 14. 14. 18.1 18.1 18.1 1.3 1.3.. 5.8 5.8 5.8 8.8 8.8 31.8 31.8 34.7 34.7 M 750 3.44 5.5 7.74.8 1.04 1.6 14.1 16.34 18.4 0.64.7 4.4 6.3 7.0.4 31.3 33.54 35.6 37.84 8 S 1.3 15.7 15.7 1.0 1.0 1.0.4.4 4.0 4.0 7.1 7.1 7.1.3.3 33.4 33.4 36.5 36.5 M 800 3.84 6.4 8.64 11.04 13.44 14.16 15.84 18.4 0.64 3.14 5.44 7.84.8.4 3.64 35.04 37.44 3.84 4.4 8 S 1. 16.5 16.5 0.0 0.0 0.0 3.6 3.6 5.3 5.3 8.6 8.6 8.6 31. 31. 35. 35. 38.5 38.5 M 850 3. 6.37 8.8 11.7 13.7 14.46 16.17 18.6 1.07 3.5 5.7 8.4.8.87 33.3 35.77 38. 40.67 43.1 S 13.7 17.4 17.4 1.1 1.1 1.1 4.8 4.8 6.6 6.6.1.1.1 33.5 33.5 37.0 37.0 40.4 40.4 M 00 50 00 50 10 1150 100 4.3 7.0.7 1.4 15.1 15.3 17.8 0.5 3. 5. 8.6 31.3 3.4 34.0 36.7 3.4 4.1 44.8 47.5 S 14.3 18. 18..1.1.1 6.0 6.0 7. 7. 31.5 31.5 31.5 35. 35. 38.8 38.8 4.4 4.4 M 4.40 7.15.0 1.65 15.40 16.3 18.15 0.0 3.65 6.40.15 31.0 33.55 34.65 37.40 40.15 4.0 45.65 48.40 S 14. 18. 18. 3.0 3.0 3.0 7.1 7.1.1.1 3. 3. 3. 36.6 36.6 40.4 40.4 44. 44. M 4.80 7.80.80 13.80 16.80 17.70 1.80.80 5.80 8.80 31.80 34.80 36.60 37.80 40.80 43.80 46.80 4.80 5.80 S 15.5 1.7 1.7 4.0 4.0 4.0 8.3 8.3.4.4 34.3 34.3 34.3 38.3 38.3 4.3 4.3 46. 46. M 4.88 7.3.8 14.03 17.08 18.00 0.13 3.18 6.3.8 3.33 35.38 37.1 38.43 41.48 44.53 47.58 50.63 53.68 11 S 16. 0.6 0.6 5.1 5.1 5.1.5.5 31.7 31.7 35.8 35.8 35.8 3. 3. 44.0 44.0 48.1 48.1 M 5.8 8.58 11.88 15.18 18.48 1.47 1.78 5.08 8.38 31.68 34.8 38.8 40.6 41.58 44.88 48.18 51.48 54.78 58.08 11 S 16.8 1.5 1.5 6.1 6.1 6.1.7.7 33.0 33.0 37.3 37.3 37.3 41.6 41.6 45. 45. 50. 50. M 5.36 8.71 1.06 15.41 18.76 1.77.11 5.46 8.81 3.16 35.51 38.86 40.87 4.1 45.56 48.1 5.6 55.61 58.6 1 S 17.4.. 7.0 7.0 7.0 31.8 31.8 34.1 34.1 38.6 38.6 38.6 43.0 43.0 47.5 47.5 51. 51. M 5.76.36 1.6 16.56 0.16 1.4 3.76 7.36.4 34.56 38.16 41.76 43. 45.36 48.6 5.56 56.16 5.76 63.36 1 S 18.0 3.0 3.0 8.0 8.0 8.0 33.0 33.0 35.4 35.4 40.0 40.0 40.0 44.7 44.7 4.3 4.3 53. 53. M L damper width [mm] damper height [mm] DIMENSIONS ND BSIC CRCTERISTICS OF DMPER S effective area [dm ] M weight [kg] For dimensions not listed in this table, assembly of fire dampers in batteries maybe considered. dampers with 5 mm step of L dimension may be provided. 10 DIMENSIONS OF WIT CTUTOR L 1 Detail "" L B Flange mm Detail "B" GRYFIT GRYFIT GRYFIT GRYFIT GRYFIT 1 Detail "" 31.5 0 B 1=+63 R4.5 Flange 0 mm 1=+40 Flange mm L [mm] damper width L 1 1 =L+173 [mm] Flange 0 mm L [mm] damper width L 1 1 =L+150 [mm] R4.5 Detail "B" Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 1
SELECTION DIMENSIONS OF WIT FUSIBLE LINK ND ELECTRO-MGNET 10 L 1 L Detail "" B Flange mm Detail "B" R4.5 1 Flange 0 mm 1=+40 0 1=+63 Detail "" Detail "B" B R4.5 Flange mm L [mm] damper width L 1 1 =L+63 [mm] Flange 0 mm L [mm] damper width L 1 1 =L+40 [mm] DIMENSIONS OF WIT MECNISM L 1 150 L Detail "" B Flange mm Detail "B" R4.5 1 Flange 0 mm 1=+40 0 1=+63 31.5 Detail "" Detail "B" B R4.5 Flange mm L [mm] damper width L 1 1 =L+3 [mm] Flange 0 mm L [mm] damper width L 1 1 =L+00 [mm] Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 13
SELECTION PRESSURE DROP ND SOUND POWER LEVEL Pressure drop P [Pa] in the function of air velocity V [m/s] with consideration of acoustic power L W [db()] for the GRYFIT damper of L=700 and in the range of 00 700 [mm] assembly with TR grille at the ends of the ducts. 0 0 80 70 60 50 40 45 00 0 400 500 550 650 700 0 40 L W db()35 P [Pa] 8 7 6 [mm] 5 4 3 1 1 3 4 5 6 7 8 V [m/s] Pressure drop P [Pa] in the function of air velocity V [m/s] with consideration of acoustic power L W [db()] for the GRYFIT damper of L=700 for in the range of 750 100 [mm] assembly with TR grille at the ends of the ducts 0 0 80 60 50 40 45 750 850 00 00 10 100 0 L W db() 35 40 P [Pa] 8 7 6 5 [mm] 4 3 1 1 3 4 5 6 7 8 V [m/s] Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 14
SELECTION PRESSURE DROP ND SOUND POWER LEVEL Pressure drop P [Pa] in the function of air velocity V [m/s] with consideration of acoustic power L W [db()] for the GRYFIT damper of L=700 and in the range of 00 700 [mm] 0 00 0 8 7 45 400 500 550 650 700 P [Pa] 6 5 4 3 LW db() 35 40 [mm] 1 1 3 4 5 6 7 8 V [m/s] Pressure drop P [Pa] in the function of air velocity V [m/s] with consideration of acoustic power L W [db()] for the GRYFIT damper of L=700 and in the range of 750 100 [mm] 0 P [Pa] 8 7 6 5 4 3 L W db() 35 40 45 750 850 00 00 10 100 [mm] 1 1 3 4 5 6 7 8 V [m/s] L [mm] length of GRYFIT damper [mm] height of GRYFIT damper V [m/s] air velocity referred to nominal size of GRYFIT damper P [Pa] total pressure loss ζ local resistance coefficient ρ [kg/m 3 ] air density (1, at 0 C) L [db()] W sound power level after frequency-dependent correction of -type L [db] WNC sound power level as per the graph NC L =L WNC W 5 L [db] WOKT sound power level in octave bands L =L WOKT W +correction taken from Table 1 f [z] octave frequency Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 15
SELECTION Table 1. Table 3. L [mm] erodynamic and acoustic correction for dampers of other dimensions L [mm] P x ζ LW + 00 3.3 5.5 50. 4. 0.0 3. 315.0 3. 350 1.8.8 400 1.7. 450 1.5. 500 1.5. 550 1.4. 600 1.4. 6 1.0 0.0 650 1.0 0.0 700 1.0 0.0 750 1.0 0.0 800 1.0-1.5 850 0.8-1.5 00 0.8-0.5 Table. PRESSURE DROP ND SOUND POWER LEVEL Local resistance coefficient ζ for L=700 [mm] Correction for octave in [db] V [m/s] 63 15 50 500 00 000 4000 4 1 18 7-5 -1-5 -37 5 13 7-5 -14-3 -33 6 7 8 5-5 -1-16 -7 7 5 6-4 - -15-4 8 5 1-4 - -11-1 1 3-1 -5-7 -11-1 - -4-5 -7 - -16 Note: 1. Measurements have been made in accordance with the following standards: PN-ISO 5135: 000, PN EN-ISO 3741: 011, PN EN 1751: 00. Intermediate values may be determined by interpolation. 3. utomatic verification of aerodynamic and acoustic characteristics in Ventpack. [mm] 00 50 0 315 350 400 450 500 550 600 6 650 700 750 800 850 00 50 00 50 1150 100 ζ.65 1.85 1.45 1.33 1.5 1.18 1.15 1. 1.08 1.0 0.5 0.86 0.80 0.75 0.71 0.71 0.65 0.63 0.5 0.58 0.50 0.50 Example no. 1 Parameters known: GRYFIT fire damper of Lx=0x700 [mm] Parameters required: P[Pa], L [db()], L [db], L W WNC WOKT [db] for 500 z octave at the velocity V=4 [m/s] referred to the nominal size of the damper Results: P=13x,0=6 Pa for L=0 mm taken from Table 1 L W =34+3,=37, db() for L=0 mm taken from Table 1 L WNC =37, 5,0=3, db L WOKT =37, 5,0=3, db for 4 m/s, 500 z taken from Table 3 Example no. Parameters known: GRYFIT fire damper of Lx=700x0 [mm] Parameters required: P[Pa], L [db()], L [db], L W WNC WOKT [db] for 500 z octave at the velocity V=4 [m/s] referred to the nominal size of the damper Results: P= 15 Pa L W = 35 db() L WNC = 35 5= db L WOKT = 35 5= db for 4 m/s, 500 z taken from Table 3 Note: Replacement of dimension of L [mm] with [mm] will result in reduction of pressure drop P [Pa] and acoustic power level L W [db()] Example no. 3 Parameters known: GRYFIT fire damper of Lx=00x0 [mm] Parameters required: P[Pa], L W [db()], L WNC [db], L WOKT [db] for 500 z octave at the velocity V=4 [m/s] referred to the nominal size of the damper Results: P=15x3,3=4,5 Pa for L=00 mm taken from Table 1 L W =35+5,5=40,5 db() for L=00 mm taken from Table 1 L WNC =40,5 5=35,5 db L WOKT =40,5 5,0=35,5 db for 4 m/s, 500 z taken from Table 3 Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 16
METOD OF INSTLLTION INSTLLTION OF WIT TR GRILLE P>10 Ventilaction duct Detail "" L r x r GRYFIT GRYFIT L k x k L g x g ngle bar ngle bar Fire damper Grille TR INSTLLTION OF IN ORIZONTL PRTITION Fire damper Ventilaction duct P>10 L r x r GRYFIT L g g x GRYFIT L k x k g Damper Dimensions dimensions of opening L Dimensions of Outside Dimensions opening GRYFIT dimension mechanism of TR grille of TR grille Lr=L+ Lr=L+60 Lk=L+1 L g= L + r=+0 r=+0 k= g = +10 Grille TR Mounting frame CR L g k L k ngle bar Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 17
SELECTION INSTLLTION OF WIT VENTILTION DUCT CONNECTED ON BOT SIDES Fire damper Ventilaction duct P>10 10 L r x r L x L r x r INSTLLTION OF IN CEILING GRYFIT damper may be mounted to the ceiling with use of 4 flat bars fastened to the ceiling by means of bolts and slotted pins. Mounting: Insert the GRYFIT damper into the mounting opening and place it on the brackets. Complete falsework. Fill the opening with cement mortar from the top, and once hardened, remove the falsework. Dimensions (L r, r ) of mounting opening are the same as in case of installation of the damper in vertical partition wall made of concrete or bricks. r=+0 Screw - Lr=L+ 1 L r [mm] width of the opening for damper in vertical arrangement: L r =L+ [mm] Dampers are arranged in batteries in case of ventilation ducts of very large cross-section, for which the use of dampers selected from the standard dimension range is not possible. Dampers are connected each other by means of steel flat bars, which are mounted to flange of the dampers. Dimensions of the damper assembly and the mounting opening should be determined in the following way: For two dampers in vertical assembly: r [mm] height of the opening for fire damper r =+0 [mm] L r [mm] width of the opening for fire damper L r =xl+383 [mm] Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 18
METOD OF INSTLLTION For two dampers in vertical assembly: r [mm] height of the opening for fire damper r =x+163 [mm] L r [mm] width of the opening for fire damper L r = L+ [mm] For four dampers assembly: r [mm] height of the opening for fire damper r =x+163 [mm] L r [mm] width of the opening for fire damper L r = xl+383 [mm] NOTE! Verify whether the particular manner of damper mounting is appropriate by checking availability of the respective classification and the approval for use! - r = + 0 r = + 0 L r = x L + 383 - Mineral wool density 0 kg/m 3 r = x + 163 r = x + 163 Lr=L+ - r = x + 163 Mineral wool 3 density 0 kg/m r = x + 163 L r [mm] width of the opening for fire damper r [mm] height of the openinf for fire damper L r = x L + 383 Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 1
METOD OF INSTLLTION INSTLLTION OF WIT FUSIBLE LINK ND ELECTRO-MGNET ccess door should be arranged at the height of 00-0 [mm] above the damper bottom for enabling access for performance of maintenance works and retrofitting the GRYFIT fire damper equipped with electro-magnet. Remove the cover of the revision hole and turn the blade to open position using the handle on the blade. Set the electro-magnet keeper in such position in which its whole surface is in contact with the surface of electro-magnet. SSEMBLY OF WIT OTER COMPONENTS OF VENTILTION SYSTEM EI10(v e -i o)s fire damper has a 10 mm thick body. When the damper is closed, no movable part protrudes beyond the body contour; therefore, such components as C silencing grille, silencer, elbow may be installed directly behind the damper. INSTLLTION OF IN LIGT-WEIGT PRTITION WLLS For installation of GRYFIT fire damper with actuator in a light-weight wall prepare the opening of a width and a height of L r =L+35 [mm] and r =+15 [mm] respectively. For installation of GRYFIT fire damper with fusible link or electro-magnet in a light-weight wall, prepare the opening of a width and height of L r =L+15 [mm] and r =+15 [mm], respectively. L r =L+15 [mm] and r =+15 [mm], respectively. Insert a frame made of system profiles into the opening, and bolt light-weight walls around so prepared opening. Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com
ELECTRICL WIRING DIGRMS Damper with microswitches Micro-switch open WIT MICROSWITCES ND ELECTO-MGNET Micro-switch closed Micro-switch Micro-switch open closed Damper with electro-magnet and double set of microswitches Micro-switch Micro-switch open closed 1 3 4 5 6 7 8 1 3 4 5 6 7 8 1 3 4 5 6 4V DC (+) V C N (-) L1 ~ C 4V - + DC 4V N L1 C V 1 Thermo-electric tripping device 4V DC (+) V C N WIT CTUTOR ND OPTIONL EMS Damper with FDG-WT-8 actuator Microswitches 1 3 4 5 6 (-) L1 Damper with FDG-WT-8 actuator and EMS ~ C 4V - + DC 4V N L1 C V Microswitches 1 3 4 5 6 7 8 EMS Thermo-electric tripping device 1 1 3 4 5 6 M a < 5 b < 80 M a < 5 b < 80 -V WIT ELECTO-MGNET ND CTUTOR Damper with mechanism and EMS + - + - DC 4 V C V MICROSWITCES Damper with mechanism 3 4 1 5 6 7 8 Yellow - Green wire - V only + - + - 3 4 1 EM M DC 4 V C V MICROSWITCES 1 3 4 5 6 <5 <80 Yellow - Green wire - V only 1 1 EM M EMS 1 3 4 5 6 <5 <80 Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów Łódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 11
ELECTRICL WIRING DIGRMS Supply voltage Power imput 4 or 48 V DC impulse 3,5 W CRCTERISTICS OF ELECTRO-MGNET V C impulse 5,5 V 4 or 48 V DC de-energized 1,6 W V C de-energized 4 V CRCTERISTICS OF CTUTOR FDG-WT-8- FDG-WT-8-4 Supply voltage [V] V C 4V C/DC Power input during tensioning the spring [W],V 3,5W Power input during stand-by [W] 6,V 0,5W Time of movement engine [s] 55-71s 55-71s Time of movement spring [s] 1s 1s Torque motor [Nm] 8Nm 8Nm Protection class IP IP54 IP54 Sound power level actuator db() 47dB() 47dB() Sound power level spring db() 5dB() 5dB() OPTIONS ND CCESSORIES WIT FUSIBLE LINK ND VERTICL BLDES GRYFIT fire damper optionally equipped with fusible link does not have actuator compartment, and, therefore, the dimensions of the opening for such fire damper are following: L r =L+0 [mm], r =+0 [mm]. Fusible link is a standard equipment of the fire damper. It breaks and closes isolating partition once the temperature in ventilation duct has exceeded 7 C or 5 C. In case of response or damage of fusible link, replace it with the new one prior to re-opening the isolating partition of the damper. Procedure of fusible link replacement is provided in a separate manual. WIT FUSIBLE LINK, ELECTRO-MGNET ND MICROSWITCES The GRYFIT fire damper optionally equipped with mictroswitches and electro-magnet does not have actuator compartment. Dampers in this version have the same dimensions as the dimensions of the fusible link fire dampers. In case of assembly with TR grille at the end of ventilation duct, TR grille has the same dimensions of L [mm], [mm], L k [mm], and k [mm] as the dimensions of the TR grille for GRYFIT fusible-link fire dampers. EXMPLE OF DESIGN SPECIFICTION ND PURCSE ORDER Enquiry: GRYFIT fire damper with rectangular flange connection, dimensions: Lx=400x400 [mm], equipped with: - ctuator with thermo-electric tripping device FDG-WT-8-4, closing time: <0s, power consumption in stand-by conditions: 0,5W, - EMS module suitable for connection of TZ tester. Design changes reserved. ll rights reserved. GRYFIT air handling intelligence - -15.05-C.1-ENG. GRYFIT quotation: GRYFIT EI10(v e -i o)s Lx=400x400 [mm], Galvanized steel, KP+FDG-WT-8-4+EMS Distribution: CIT Sp. z o.o. - ul. Langiewicza 6-5-050 Konstantynów ódzki - Poland tel. +48 1 43 35 00 - fax: +48 1 43 35 36 - e-mail: contact@gryfit.com - www.gryfit.com 1