Smokegard Door Wall Smoke Fire Damper - Keane Environmental

IntroductionGilberts Smokegard Dampers provide a revolutionary “Engineered’ answer to the problem of smokeand fire protection in fire doors, walls and partitions. A unique patented blade linkage mechanism hasproduced a Damper narrow enough to fit within the confines of a 1/2 hour (44mm) door, 1 hour(54mm) door or any wall/partition and allow the passage of ventilation air in normal conditions butprevent the spread of smoke and flames in fire conditions.Five modes of operation are available (3x failsafe closed and 2x failsafe open) ranging from basicMode A, which is Fire only operated, to the Mode C which is Fire and Smoke operated and completewith in built status indicators. All units comprise of a Galvanised Steel Frame with Stainless Steel Inter-Locking Blades and Side Seals, combining rugged construction with maximum Fire and Smokeretardation capabilities whilst the inter-connecting Rack Blade operation feature is incorporated toensure faultless precision Damper Operation.Fire tested to BRITISH STANDARD 476 PART 20 1987 the units are 2 hour rated, having been testedfor 4 hours in a wall and 1 hour in a door.●●●●Five control modes availableAvailable in Fire or Smoke & Fire modesInterlocking Stainless Steel blades and frameside seals provide a tight seal against smokeand flamesFusible link elements close the Damperinstantly at between 70/80°C●●●●Galvanised Steel frame construction to resistcorrosionSimple key reset mechanism in the event ofactivationIndication lights available to provide a visualdisplay of Damper statusIntegral test facility provided on Mode C2

Mode AFire OperatedAfter opening FusibleLink is fitted onto pinsREMOVABLE RESET KEYOpen using Reset KeyINSTALLATION AND REPLACEMENTOF FUSIBLE LINKBLADE DETAILTYPE A STEELFASCIA GRILLEAIRFLOWGALVANISED STEELFRAME CONSTRUCTIONINTERLOCKING ACTION OPPOSED BLADESTAINLESS STEEL CONSTRUCTIONMode AGilberts Smokegard Mode A has been designed to allow the passage of ventilation air innormal conditions and prevent the spread of FLAMES in fire conditions. It is available in awide range of sizes to cater for most air flow requirements and is supplied with a doorsleeve suitable for a 45mm or 54mm door or a wall sleeve suitable for a wall or partitionof specified thickness. The damper can be suitably masked on both sides either withsteel type A grilles or aluminium non-vision type B grilles.OPERATION: The unit is activated by an integral fusible link assembly. This assembly isunder constant spring tension to close the interlocking blades and is only released,under fire conditions, by the melting of the holding solder at 72°C which allows theblades to close INSTANTLY.RESET PROCEDURE: Reset or initial setting is accomplished by the insertion of a specialkey through a hole in the inside frame (removal of fascia grille is required for access).The key is turned in a clockwise direction until the blades are fully open and then, whilstholding the blades open with the key, the fusible link is fitted over its locating pins on thetop pair of blades.3

Mode ADimensionsFUSIBLE LINKKEY RE-SET POSITIONBEHIND GRILLELIST HEIGHT +84mmTYPE A GRILLELIST HEIGHT +92mmLIST WIDTH +80mmLIST WIDTH +85mmSECTION THROUGHWALL/DOORDOOR OR WALLSLEEVE(WALL SLEEVEDEPTH VARIABLEPLEASE STATEREQUIREMENTS)DAMPERLIST SIZES AVAILABLEWIDTH 200mm in 50mmincrements to400mmHEIGHT 100mm in 100mmincrements to400mmReverse sizes availableonly upon request29mmTYPE B GRILLECUT OUT ‘H’CUT OUT SIZELIST WIDTH +42mmLIST HEIGHT +44mmCUT OUT ‘W’LIST HEIGHT +110mmLIST WIDTH +122mm4

Mode B & CSmoke & FireOperatedHOLDING ELECTRO MAGNETTEST FACILITYINDICATION LIGHTDRIVE RACKTHERMAL CIRCUIT BREAKERREMOVABLE RESET KEYTYPE B ALUMINIUMFASCIA GRILLEAIRFLOWGALVANISED STEELFRAME CONSTRUCTIONMode DescriptionsMode B - Mode B units are supplied without status indication lightor key test facility.Mode C - Mode C units are supplied with an LED statusindication light and key test facility. The LED visiblyindicates the damper status even when behind a fasciagrille. In normal conditions the LED indicates a steadygreen; in system trip conditions a steady red and inpower failure conditions provides no display. Insertingthe special key into the test facility socket provides foreasy local testing of damper operation.NB - Extra facilities available on Modes B & C includeremote status indication, remote operation andintegrally wired smoke detector operation. Please referto wiring diagram for details.Mode B & CGilberts Smokegard Modes B & C have been designed to allow the passage of ventilation air innormal conditions and prevent the spread of SMOKE AND FLAMES in fire conditions. They areavailable in a wide range of sizes to cater for most air flow requirements and are suppliedcomplete with a door sleeve and electrical door wiring loop for a 45mm or 54mm door or a wallsleeve only, for a wall/partition. The damper can be suitably masked on both sides either withsteel type A grilles or aluminium non-vision type B grilles.OPERATION: The units are operated by a 24V DC electrical supply. This 24V DC supply providespower for the damper’s integral electro magnet which in normal conditions hold the damperblades open. In fire conditions, however, when the fire protection system detects the presence offire or smoke, it will interrupt the power supply to the damper causing the electro magnet torelease the blades. The damper will then close INSTANTLY under spring tension.If fire were to reach the damper without such detection, the unit would close regardless of externalsources at 72°C by the action of its integral Electro thermal fuse.RESET PROCEDURE: Reset or initial setting, which can be accomplished with the fascia grilles inplace, is achieved by the insertion of a special key through a hole in the grille and damper frame.With the main 24V DC supply live the key is turned in a clockwise direction until the blades arefully open. The electro magnet will then lock and hold the blades and the key can be removed.5

Mode B & CDimensionsFUSIBLE LINKKEY RE-SET POSITIONBEHIND GRILLELIST HEIGHT +114mmTYPE A GRILLELED+KEY TESTHOLES MODE CONLYLIST HEIGHT +120mmLIST WIDTH +80mmLIST WIDTH +85mmSECTION THROUGHWALL/DOORDOOR OR WALLSLEEVE(WALL SLEEVEDEPTH VARIABLEPLEASE STATEREQUIREMENTS)DAMPERLIST SIZES AVAILABLEWIDTH 200mm in 50mmincrements to400mmHEIGHT 100mm in 100mmincrements to400mmReverse sizes availableupon only request29mmTYPE B GRILLECUT OUT ‘H’CUT OUT SIZELIST WIDTH +42mmLIST HEIGHT +78mmCUT OUT ‘W’LIST HEIGHT +144mmLIST WIDTH +122mm6

AncillaryItemsGilberts range of ancillary Items have been designed for use in conjunction with Smokegard Damper Modes B& C. Purpose made for straight forward connection to the units they offer a number of useful services.Remote IndicatorsGilberts remote indicator panels can belinked to Damper Modes B & C andprovide remote indication of the status ofone damper. Powered by the yellow andblue switch wires from the Smokegard andthe -VE DC supply the panel LED indicatesGreen - Damper OpenRed - Damper ClosedNo Light - No Supply Voltage - Damper ClosedRef:- SRI 1100mmUNIT No.AIIFA No.76mmGREEN LIGHTSYSTEM SETRED LIGHTSYSTEM TRIPPED76mmFROMSMOKEGARDYELLOWBLUE-VE DCORGOUTLINE OF PCBNOTE: When damper is open yellow is +VEWhen damper is closed blue is +VEMaster MonitorA more advanced form of remoteindication is available with a mastermonitor. This unit provides remoteindication for the status of up to 12individual dampers. Details as for RemoteIndicator.Ref:- SMM1-12** dependant on number of dampers on thesystem240mmMaster MonitorGILBERTS240mm87mmFROMSMOKEGARDYELLOWBLUE-VE DCORGORGUP TO 12 PCBs IN 1MASTER MONITORNOTE: When damper is open yellow is +VEWhen damper is closed blue is +VEStandard Power SupplyStandard power supplies are available intwo sizes to suit up to 6 or12 dampers.They provide conversion from 240v ACinput to a smooth and stabilised 24v DCoutput.Ref:- G6 = 6 UNITG12 = 12 UNITG6R = 6 UNIT + INTERFACE RELAYG12R = 12 UNIT + INTERFACE RELAY240mmPOWER SUPPLYUNITTYPE G12MAINS INPUT 240 V.A.C.lOUTPUT TO DAMPER 24 V.A.C.lWARNING - ISOLATEMAINS SUPPLY BEFOREENTERINGGILBERTS240mm75mmMAIN POWER SUPPLY240v ACENL24v DC POWER OUTUninterruptible Power SupplyUninterruptible power supplies operating ona 240v AC input provide a smooth 24v DCoutput to power up to 6 or 12 dampers.Unlike standard power supplies however, inthe event of a power failure, there will be anautomatic changeover to in-built batterieswithout tripping the dampers providingcontinued power for a period of up to 1hour.Ref:- UPS6 = 6 UNITUPS12 = 12 UNITUPS6R = 6 UNIT + INTERFACE RELAYUPS12R = 12 UNIT + INTERFACE RELAY350mmUNINTERRUPTIBLE POWERSUPPLYCELLS:- 27.6v DC MAX: TEST YEARLYMAINS INPUT: 240v ACOUTPUT TO DAMPERS 24v DCGILBERTSONONTHIS UNIT IS DESIGNED TO SUPPLY UPTO 12 DAMPERS FOR UP TO 1 HOURTHE INTERNAL DRY-FIT CELLS DO NOT REQUIRE SERVICE ORELECTROLYTE LEVEL TOPPING-UP. WARNING: TAKE CARE WHENINSIDE THIS UNIT CELLS GIVE 100+ AMPS IF SHORTED OUT240mm87mmMAIN POWER SUPPLY240v ACENL24v DC POWER OUTSmoke DetectorsSmoke Detectors are available for ceiling mounting and can link directly into Modes Bor C or the output relay of the Power Supply units. Detectors are 24v DC Ionisationtype.Ref:4 wire - SD27

WiringDetailsModes B & C24v DCSUPPLY260mA+-Standard DetailRBBuYW5-core flex fromDamper - averagelength 800mm24v DCsupply voltageMax IDC = 300MAStandard Detail withRemote Indicator+-RBBuYW5-core flex fromDamper - averagelength 800mmORGRemote Indicator24v DCSUPPLY260mALOAD+-Standard Detail with4 Wire Smoke DetectorRBBuYW5-core flex fromDamper - averagelength 800mm1 42N/C N/O CExternal Wiring By OthersFor Permanent Local IndicationIMPORTANT: SMOKEGARD UNITS REQUIRE A SMOOTH AND STABILISED 24V DC SUPPLY+/- 2 VOLTS WITH A MAXIMUM 3 VOLT AC RIPPLEThe Smokegard B & C Dampers are supplied pre-wired with a 5-core pvc insulated flex forconnection as follows:RED 24v+ DC supply inputBLACK 24v- DC supply inputBLUE 24v DC +output with damper trippedYELLOW 24v DC +output with damper setWHITE - VE input if local led permanently required whensupply voltage switches to operate dampersThe yellow and blue wires are only utilised if remote indication of damper status is required.These 2 wires should be insulated if not required.MODE C onlyThe Mode C Smokegard has an integral LED to indicate the blade position of thedamper (open/closed). It fits into the right of the 2 circular apertures located on thetop frame of the damper.NOTE:A key is also provided for local control or test. To test the damper, insert the keyinto the left of the 2 circular apertures.Should access to the pcb be required for any reason ISOLATE the DC supply priorto undertaking any work.8

InstallationProceduresDoor Mounted or Light Structure Partitions1. Aperture to be cut into door to match theDAMPER size (Aperture dimensionsdetailed on page 5).2. The backing sleeve should now beentered into the opening to allow markingof fixing bolt hole locations.3. Remove the backing sleeve and drill 5mmdiameter bolt holes where marked.4. MODE A Type unit can be reinstalled inthe aperture and, with the mating backsleeve inserted onthe opposite side,secured usingthe set ofscrews andnuts provided.EXCESS THREADCUTOFF AFTERINSTALLATIONTO SUITDOOR WIDTH*16SWGGALVANISED STEELBACKINGSLEEVEFITS OUTSIDEREAR OF DAMPERDOORMARK BOLT HOLESTHROUGHDAMPER FRAMEDAMPERINTUMESCENTSEAL AT BACKOF FLANGEFIXING SCREWSAND NUTSMODE B & C Type units willnow require electricalconnection before completinginstallation. After the aperturehas been cut into the door a6mm diameter wiring hole mustbe drilled from the door edge,through the centre of the door,in line with the top of thedamper from the door to to thejamb. Upon reaching the edgeof the door therefore, a routingwill then need to be made toallow the cable to enter theloop, as illustrated, for terminalblock connection. (The dampercable is colour coded. Pleaserefer to Wiring Diagram forcorrect connection). Thedamper can then be installedand, with the mating backsleeve inserted on the oppositeside, secured using the setscrews and nuts provided.ROUTINGELECTRICALLOOP6mm diaWIRING HOLEDAMPERAPERTURE5. The Fascia Grilles can nowbe fitted over the damperand fixed with self tappingscrews provided.16SWGGALVANISEDSTEEL SLEEVEFITS OUTSIDEREAR OF DAMPERDOOR* DAMPERINTUMESCENTSEAL AT BACKOF FLANGEFIXING SCREWSAND NUTSFASCIA GRILLETYPE A OR B(TYPE A ILLUSTRATED)Wall Mounting1. Aperture to be cut into wall to matchthe damper size (aperture dimensionsdetailed on page 5).50mmCABLE ENTRY POINT10mm50mm2. The rear sleeve should now be fixedinto the wall and secured with suitablescrews (and plugs if necessary)through the flange.3. Mode A type Dampers, which do notrequire an electrical connection, cannow be fitted from the front andsecured with suitable screws (andplugs if necessary) through the flange.4. Mode B and C type Dampers, requireelectrical connection before installationis complete.The dampers are suppliedwith approximately onemetre of flex to which asecure insulated connectionis recommended.16 SWG GALVANISEDSTEEL SLEEVEWALL*The damper cable is colourcoded. Please refer to WiringDiagram forcorrectconnectionOnce theseconnectionshave beencompleted thedamper can befitted into theaperture andDAMPER16 SWG GALVANISEDSTEEL SLEEVEsecured with suitable screws(and plugs if necessary)through the flange.5. The front and rear fasciagrilles for all modes canthen be fitted over thedamper and fixed with theself tapping screwsprovided through the holesin the flanges.*It is recommended that anIntumescent Sealant isinserted at this pointbetween the overlappingsleeves.WALL*DAMPERFACIA GRILLETYPE A OR B(B ILLUSTRATED)Maintenance of ComponentsAll units are tested before leaving the factory, but should be test operated prior to commissioning andregularly thereafter to ensure correct operation. Test frequency will depend upon Damper environmenthowever a maximum interval of 6 months is recommended. In addition an Annual Visual Inspection is alsoadvisable to permit cleaning and removal of any airborne contaminants which may affect the Damperoperation. (NB for safety the Damper Blades should be closed before personally approaching them forinspection/cleaning).The Dampers contain no other user serviceable parts, any faults are best referred to the manufacturer.9

Nomogram1.51.00.90.80.70.60.5GRILLE TOTAL PRESSURE N/m 2 TYPE 'B'SOUND LEVEL dbATYPE 'B'200x100250x100200x1000.4300x100250x1000.30.20.150.10.090.080.070.060.050.040.030.02AIR FLOW RATE m 3 /sec.706050403020706050403020TYPE 'A' SOUND LEVEL dbA54321.51TYPE 'A' TYPE 'B'JET VELOCITY4030201054321TYPE 'A'GRILLE TOTAL PRESSURE N/m 2100550403020105350x100200x200400x100250x200300x200350x200400x200300x300350x300400x300400x400TYPE 'B'GRILLE SIZES300x100350x100200x200400x100250x200300x200350x200400x200300x300350x300400x300400x400TYPE 'A'ExampleType Volume Sound Level Jet Vel Pressure DropA 0.2 36 2.8 14B 0.2 45 3.3 4610

Test DataFire TestsIntroductionAll fire tests where conducted by the WARRINGTON RESEARCH CENTREto BRITISH STANDARD 476 PART 20 1987.This test describes the performance of structural elements under fire conditions,and considering there is no standard test for this type of fire damper it wasdecided to mount both a fusible link operated, and also an electro-magnetoperated fire damper in a standard 1 hour timber fire door.STANDARD TIME-TEMPERATURECURVE OF BS476 PART 20 1987120011001000Test DescriptionTests were conducted in order to test both the stability and integrity of the units,and it was felt that mounting them in a fire door would demonstrate the mostsevere combined situation for which the units would likely be installed. Not onlywere the fire dampers scrutinised during the test, but also the combinedsituation thus demonstrating the total integrity of the installation.Units tested were of a size 400 Wide x 400mm High which is the largestmanufactured size for this type of unit. They were installed within 54mm thickfire doors with a suitable backing flange, and secured with mild steel bolts fromone face flange to the other through the door itself. The combined assembly wasplaced vertically against one open side of a 1m 3 furnace and then securelybolted to maintain an air seal between.Test ResultsThe duration of the test was 1 hour, and only slight charring of the timber aroundthe damper frame was apparent after this time. At the end of the test the integrityand stability of both the damper and door had been maintained.TEMPERATURE - DEGREES C900800700600500400300200100TEST DURATION0Air Flow TestDataIntroductionThe air flow test was conducted by the Building Research and Information Association.AIR FLOW LEAKAGE CHARACTERISTIC OF A 300X200MMSMOKEGARD FIRE DAMPER IN THE CLOSED POSITION3FLOW RATE - PRESSURE DROP CHARACTERISTIC FORBLADE FIRE DAMPER IN OPEN POSITIONMULTI-2100987654Pressure drop across unit Pa1009876543210987654Pressure drop across unit Pa21098765432332200x100300x100200x200400x100300x200200x300400x200300x300200x400400x300300x400400x4001.00.0001 0.001 0.01VOLUME M 3 /s0.01 0.05 0.1 0.5 1.0VOLUME M 3 /s11

OrderingSpecificationSERIES: SMOKEGARDFailsafe Closed-Mode A.................................SG/AMode B.................................SG/BMode C.................................SG/CFailsafe Open-Mode RB.................. .........SG/RBMode RC................ ...........SG/RCDOOR MOUNTED................DWALL MOUNTED.................WSIZE (mm width x Height)WALL THICKNESS (mm)GRILLE TYPE A or BGRILLE FINISH (Please Specify)NUMBER REQUIREDSTANDARD POWER SUPPLIES:6 Way..........................................................G66 Way c/w output relay................................G6R12 Way........................................................G1212 Way c/w/ output relay.............................G12RUNINTERUPTABLE POWER SUPPLIES:6 Way..........................................................UPS66 Way c/w output relay................................UPS6R12 Way........................................................UPS1212 Way c/w/ output relay.............................UPS12RSG/A W 300 x 200 125T A PPCSATINSILVER(StandardFinish)REMOTE INDICATORS:Single unit..............................................SR1MASTER MONITOR:1 - 12 unit...............................................SMM1 -12plus per damperSMOKE DETECTORS:24V DC wire ionisation...........................SD215GRILLES:NOTES:TYPE A - All steel construction withhorizontal louvres on 8.5mmcentres with a 30° downwarddeflection.TYPE B - Manufactured fromextruded aluminium with visionproof core.1. MODE A type of unit provided witha fusible link set to operate at72°C.2. MODE B & C type of unit providedwith a Thermal Circuit Breaker setto operate at 72°C.3. MODES B & C type of units whichare required for door mounting areprovided with electrical jump loopto transfer wiring from door tojamb.4. All units provided with 1.6mm mildsteel galvanised sleeve to suitwall/door thickness.FINISH:Standard Finish is a PPC satin silver.Special Finishes are PPC to any stockBS/RAL colour.EngineeringSpecificationInner frame manufactured from 1.0mm galvanised mild steel to BS 1449 Part 1, CR4 Grade ZZ. Formed to channel shapewith end flanges. The four parts of the inner frame are rivetted together with two stainless steel rivets 3mm diameter x 6mmlong at each of the four corners. The outer frame is manufactured from 1.6mm galvanised mild steel formed into 4 sectionsand welded to form a rigid frame. The inner frame is secured through the flange onto the outer frame using No6 screws.Blades of 0.457mm stainless steel to BS 1449 Part 2, 1975 302 S16, are formed into hollow section with a radiused leadingedge and vee shaped trailing edge. The section is spot welded together after forming at the point of the vee, spotwelds ata pitch of 33mm. The blade ends are closed off by stainless steel end caps, material specification as per the blade and havestainless steel pivot pins rivetted to them, the pivot pins have suitable flats to engage the blade drive pinions. The end capsare secured to the blade by three 2.8mm diameter stainless steel rivets 6mm long at each end.Holes in the inner side frame to accept the blade pivot pins are set at suitable spacings to allow blade leading edges tointerlock in the vee of the next blade. Side seals of 0.152mm stainless steel as per blade specification, are formed andpierced to accept blade pivot pins, and are assembled between frame sides and blade ends. Top and bottom seals aremanufactured in material as for side seals but are retained on top and bottom inner frames by nibs formed in frame innersurfaces.The blades are actuated by a 3mm thick x 40mm steel rack located in the side frame, and acting on steel pinions attachedto blade pivot pins. The rack and pinions are zinc plated and passivated, and are contained in the side frame by a coverplate for Modes B and C, the blades are held in the open position via the rack, which in turn is held by a conical endedstainless steel pin engaging in a female keyhole aperture in the rack. The action of the rack through the spring action is todisengage the pin, but this is prevented by an electro-magnet. When the electro-magnet is deenergised it allows thestainless steel pin to move forward, thus disengaging the rack which moves immediately to the closed position shutting theblade pack.For Mode A units a 72°C Fusible link is mounted on pivot brackets on the two opposed action blades. On failure of said fuselink blades are allowed to move in opposed directions, synchronised and driven by the spring loaded rack and pinionarrangement.ContactGILBERTSHead Office and WorksGILBERTS (BLACKPOOL) LTDGilair Works, Clifton Road,Blackpool.Lancashire FY4 4QT.Telephone: (01253) 766911Fax: (01253) 767941e-mail: sales@gilbertsblackpool.comWeb: www.gilbertsblackpool.comGilberts (Blackpool) Ltd reserve the right to alter the specification without notice. For our latest product data please visit www.gilbertsblackpool.comThe information contained in this leaflet is correct at time of going to press © 2008.