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Lindab RECTANGULAR Series Technical Manual

Fire damper
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WKS25
Technical Manual
English
PATENTED FIRE DAMPER
RECTANGULAR SERIES WKS25 - 500 Pa
Cert. N° 1812-CPR-1046
Installation type with fire resistance class

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  • Page 1 WKS25 Technical Manual English PATENTED FIRE DAMPER RECTANGULAR SERIES WKS25 - 500 Pa Cert. N° 1812-CPR-1046 Installation type with fire resistance class...
  • Page 2 This is a 54page manual.
  • Page 3 WKS25 WKS25 TAbLE oF CoNTENTS Overview � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �  p� 4 Description �...
  • Page 4 WKS25 WKS25 ovER vIEW ovER vIEW Description General characteristics „ „ Fire dampers WKS25 are devices for use in heating, venti- • Casing made from galvanized carbon steel (or stainless lation and air-conditioning (HvAC) systems at fire bounda- steel available only for motorized version). ries to maintain compartmentation and protect means of •...
  • Page 5 WKS25 WKS25 ovER vIEW Available dimensions „ Single fire dampers † Fire dampers are avaible in all base-height combination indicated below Base Height Fire dampers pairing for big ducts dimensions † Side by side paired fire dampers Vertically paired fire dampers Side by side paired fire dampers Required base 1000...
  • Page 6 WKS25 WKS25 ovER vIEW Fixing flaps „ Bend for walls 100 mm thick or higher Bend for walls 70 mm thick or higher Fire dampers pairing „ The patented WKS25 rectangular fire dampers can be paired side-by-side or vertically (not more than two) using the custom connection kit (see section Accessories and spare parts  p. 44).
  • Page 7 WKS25 WKS25 ovER vIEW WKS25 Fire damper Steel profile designed as a function of the pairing lenght Steel plate Fixing screws • It is forbidden to pair three or more fire dampers. 7/54 7/54...
  • Page 8 WKS25 WKS25 ovER vIEW WKS25 Fire damper Steel profile designed as a function of the pairing lenght Steel plate Fixing screws • It is forbidden to pair three or more fire dampers. • It is forbidden to vertically pair two fire dampers with ver- tical axis.
  • Page 9 WKS25 WKS25 ovER vIEW Performances „ Performance Reference standard Class Thermal fuse testing ISO 10294-4 Compliant Open and Close cycle reliability EN 15650 Compliant Resistance to corrosion in humid and saline environments EN 60068-2-52 Degree of severity 2 Class C Casing tightness EN 1751 Blade seal...
  • Page 10 WKS25 WKS25 ovER vIEW Mechanism type „ the damper by rotating the lever counterclockwise once Manual and compact manual † the element has been replaced. Manual Position indication microswitches on request, the fire damper can be supplied with position microswitches (S2 optional) that signal the blade position (open or closed).
  • Page 11 WKS25 WKS25 ovER vIEW Manual with magnet Belimo motorized version † † Manual opening lever Manual closing switch Manual closing button Manual opening lever Lever position when the blade is open Position indicator Lever position when the blade is closed Blade locking lever Blade closing mode Blade closing mode...
  • Page 12 WKS25 WKS25 ovER vIEW Siemens motorized version † Manual closing switch Manual opening lever Screwdriver Position indicator Blade closing mode Automatic closing with thermal fuse. The control mechanism has a thermosensitive element that automatically closes the blade when the temperature in the duct or in the room exceeds 72°C (or 95°C for the 95°C version).

  • Page 13: Technical Data

    WKS25 WKS25 TECHNICAL DATA TECHNICAL DATA The sizes shown are in mm. Dimension „ H nominal height S1 blade exposition 32,5 57,5 S2 blade exposition 21,5 46,5 71,5 96,5 121,5 146,5 171,5 196,5 221,5 Manual Siemens motorized version † † Manual with magnet Belimo motorized version †...
  • Page 14 WKS25 WKS25 TECHNICAL DATA Weights „ Height Base 10,0 10,0 10,0 10,0 11,0 12,0 10,0 10,0 11,0 12,0 13,0 10,0 11,0 11,0 12,0 13,0 14,0 10,0 11,0 11,0 12,0 13,0 14,0 15,0 10,0 10,0 11,0 12,0 13,0 14,0 15,0 16,0 10,0 11,0 12,0...

  • Page 15: Installation

    WKS25 WKS25 INSTALLATIoN INSTALLATIoN Positioning brackets before fixing The sizes shown are in mm. „ Intended use „ Positioning brackets The MP3 fire dampers are “Devices for use in heating, ven- tilation and air conditioning (HvAC) systems at fire bound- aries to mantain compartmentation and protect means of escape in case of fire”...
  • Page 16 WKS25 WKS25 INSTALLATIoN Transfer Application (application not connected to air ducts on one or both sides) „ Following tests performed as per EN 1366-2, section 6.3.6 Standard, it is possible to install the fire damper free from air duct from one or both sides. •...
  • Page 17 WKS25 WKS25 INSTALLATIoN Technical data (Transfer Application) † Mechanism side End cap length mechanism side Mechanism opposite side End cap length mechanism opposite side End cap with mesh Nominal height of fire damper Length of end cap with mesh depending on fire damper height H. Nominal height of fire damper End cap length mechanism side End cap length mechanism opposite side...

  • Page 18: Minimum Distances

    WKS25 WKS25 INSTALLATIoN Minimum distances „ It is recommended to keep enough space for using the In accordance with Articles 7 and 13 of EN 1366-2 respect control mechanism or for maintenance. the minimum distances indicated below. Minimum distances Side vertical wall Floor Distance between fire dampers installed within vertical wall Distance between fire damper and vertical lateral wall / floor...
  • Page 19 WKS25 WKS25 INSTALLATIoN One air duct Installations within vertical light wall (Shaft wall) † Fire dampers installed within vertical Fire dampers installed within floor wall Installation a [mm] b [mm] c [mm] d [mm] Paired installation EI 90 S Installation within vertical light wall (Shaft wall)  p. 30 Plasterboard sealing 19/54...
  • Page 20 WKS25 WKS25 INSTALLATIoN Construction supports characteristics „ • vertical profile fixing with selfthreading screws or by The European standard for fire dampers foresees a precise correlation between the wall/floor characteristics and the clinching to the bottom horizontal profile and insertion fire resistance class obtained, as well as the correlation be- in the top horizontal profile;...
  • Page 21 WKS25 WKS25 INSTALLATIoN • vertical profiles placed with a maximum spacing of 1000 Gypsum blocks light walls † mm between each other; Gypsum blocks wall can be built with special solid gypsum • vertical profile fixing with selfthreading screws or by blocks with interlocking shaped edges as indicated in the clinching to the bottom horizontal profile and insertion supplier's instructions and according to the following char-...
  • Page 22 WKS25 WKS25 INSTALLATIoN EI 120 S Installation within vertical rigid wall „ The WKS25 fire dampers classified EI 120 S within vertical base = damper base + 50 mm rigid walls, guarantee fire and heat sealing for 120 minutes height = height1 + height2 + 45 mm + 50 mm –...
  • Page 23 WKS25 WKS25 INSTALLATIoN EI 120 S Installation in vertical rigid wall - Special cases „ Installation in contact with ceiling or floor or side Corner room installation † † wall opening dimensions are as indicated in the previous sec- tion. opening dimensions are as indicated in the previous sec- Apply two plasterboard layers, to compose a “L”...
  • Page 24 WKS25 WKS25 INSTALLATIoN EI 120 S Installation within vertical light wall (plasterboard) „ The WKS25 fire dampers classified EI 120 S within light exceed by more than 10 mm from the indicated sizes so as (plasterboard) walls guarantee fire and heat sealing for 120 not to compromise the correct thermal insulation.
  • Page 25 WKS25 WKS25 INSTALLATIoN Damper positioning tion for the position of the damper, both in relation to air † flow and the side with the higher probability of exposure Lift the fixing flaps located on the fire damper casing. See to fire, as indicated in standard EN1366-2 (paragraph 6.2). section Fixing flaps  p. 6 for further details.
  • Page 26 WKS25 WKS25 INSTALLATIoN EI 120 S Installation within vertical light wall (plasterboard) - Special cases „ Installation in contact with ceiling or floor or side Corner room installation † † wall A rectangular opening must be provided in the wall with the two sides made by metal profles ideal for use with plas- A rectangular opening must be provided in the wall with terboard.
  • Page 27 WKS25 WKS25 INSTALLATIoN EI 90 S Installation within vertical light wall (gypsum blocks wall) „ The WKS25 fire dampers classified EI 90 S within vertical Damper positioning † light walls built with gypsum blocks "carreaux de plâtre", Lift the fixing flaps located on the fire damper casing. See guarantee fire and heat sealing for 90 minutes only if in- section Fixing flaps  p. 6 for further details.
  • Page 28 WKS25 WKS25 INSTALLATIoN EI 120 S Installation within vertical light wall (gypsum blocks wall) „ The WKS25 fire dampers classified EI 120 S within vertical base = base1 + base2 + 45 mm + 50 mm light walls built with gypsum blocks “carreaux de plâtre”, height = damper height + 50 mm.
  • Page 29 WKS25 WKS25 INSTALLATIoN EI 120 S Installation within vertical light wall (gypsum blocks wall)- Special cases „ Installation in contact with ceiling or floor or side Corner room installation † † wall opening dimensions are as indicated in the previous sec- tion.
  • Page 30 WKS25 WKS25 INSTALLATIoN Installation within vertical light wall (Shaft wall) „ WKS25 fire dampers are tested and approved in: Damper protrusion Wall minimum thick- Fire resistance classi- Hole size “D1 x D2” from the wall “E” ness “S” Sealing fication [mm] [mm] [mm]...

  • Page 31: Electrical Connections

    WKS25 WKS25 ELEC TRICAL CoNNEC TIoNS ELEC TRICAL CoNNEC TIoNS Electrical wiring „ Electrical connections must be done by qualified and Manual with magnet - MR/MI version (the † trained people. magnet is powered using 24 V DC/48 V DC Switch off the power supply before starting any work on through S0-25 electric board) the electric elements.
  • Page 32 WKS25 WKS25 ELEC TRICAL CoNNEC TIoNS Motorized version Microswitches position for motorized version † Belimo servomotor: Negative (DC) or neutral (AC) Positive (DC) or phase (AC) bFL24T, bFN24T, bF24T, bFL230T, bFN230T, bF230T. Phase Neutral Common closed damper microswitch Normally closed, closed damper microswitch Normally opened, closed damper microswitch Common open damper microswitch Normally closed, open damper microswitch...

  • Page 33: Electrical Specifications

    WKS25 WKS25 ELEC TRICAL CoNNEC TIoNS Electrical specifications „ Manual with magnet Manual and compact manual Belimo motorized version Siemens motorized version Magnet (WKS25MR/MI): 24/48 V DC (automatic voltage switching on S0-25 electric board for 24V magnet) Power interrruption magnet (MR): Power input magnet (MI): P = 1,6 W P = 3,4 W...

  • Page 34: Maintenance And Inspections

    WKS25 WKS25 MAINTENANCE AND INSPEC TIoNS MAINTENANCE AND INSPEC TIoNS Disposal Fire dampers and control mechanisms do not require rou- „ tine maintenance. Disposal in case of destruction must be carried out in ac- Extraordinary maintenance (repairs) and periodic inspec- cordance with national legislation.
  • Page 35 WKS25 WKS25 SELEC TIoN SELEC TIoN Air flow rates in relation to the diameter „ Maximum frontal air speed = 12 m/s Base (mm) Front Maximum Front Maximum Front Maximum Front Maximum section section air flow section section air flow section section air flow...
  • Page 36 WKS25 WKS25 SELEC TIoN Air flow rates as a function of the pressure drop „ ∆P = 5 Pa Base (mm) Height (mm) m³/h dB(A) m³/h dB(A) m³/h dB(A) m³/h dB(A) m³/h dB(A) 17,9 20,5 21,9 24,0 25,7 22,3 25,0 26,3 28,4 1144...
  • Page 37 WKS25 WKS25 SELEC TIoN ∆P = 10 Pa Base (mm) Height (mm) m³/h dB(A) m³/h dB(A) m³/h dB(A) m³/h dB(A) m³/h dB(A) 26,0 28,7 30,0 32,1 1104 33,8 30,5 33,2 34,5 1274 36,6 1618 38,4 34,2 36,8 1285 38,1 1736 40,3 2206 42,0...
  • Page 38 WKS25 WKS25 SELEC TIoN ∆P = 15 Pa Base (mm) Height (mm) m³/h dB(A) m³/h dB(A) m³/h dB(A) m³/h dB(A) m³/h dB(A) 30,8 33,4 34,7 1064 36,8 1352 38,6 35,3 37,9 1154 39,2 1560 41,4 1982 43,1 39,0 1136 41,6 1573 42,9 2127...
  • Page 39 WKS25 WKS25 SELEC TIoN Air flow rates as a function of generated sound levels „ Lw = 30 dB(A) Base (mm) ΔP ΔP ΔP ΔP ΔP Height (mm) m³/h m³/h m³/h m³/h m³/h 13,7 11,0 1124 1115 1315 1031 1273 1502 1157 1429...
  • Page 40 WKS25 WKS25 SELEC TIoN Lw = 40 dB(A) Base (mm) ΔP ΔP ΔP ΔP ΔP Height (mm) m³/h m³/h m³/h m³/h m³/h 32,2 25,8 23,1 1206 19,3 1422 16,6 21,8 17,5 1179 15,7 1456 13,1 1718 11,3 16,0 1050 12,8 1376 11,5 1699...
  • Page 41 WKS25 WKS25 SELEC TIoN Lw = 45 dB(A) Base (mm) ΔP ΔP ΔP ΔP ΔP Height (mm) m³/h m³/h m³/h m³/h m³/h 49,4 39,5 1209 35,4 1493 29,5 1761 25,4 33,4 1112 26,7 1458 23,9 1799 19,9 2123 17,2 24,4 1296 19,5 1699...
  • Page 42 WKS25 WKS25 SELEC TIoN Pressure drop and sound level graph for base 400 mm „ Example B = Base [mm] B = 350 H = Height [mm] H = 250 Q = Air flow [m³/h] Q = 2520 m³/h V1 = Frontal air speed [m/s] V1 = 8 m/s ΔP = Pressure drop [Pa] From graph: ΔP = 15x1,05=15,8 Pa...
  • Page 43 WKS25 WKS25 SELEC TIoN Correction for base different than 400 mm „ Correction for base different than 400 mm B in mm ΔP x … 1,64 1,52 1,16 1,05 0,93 0,89 0,87 0,84 0,82 0,78 0,77 Lw + … -1,9 -1,6 -1,2 -0,9...

  • Page 44: Accessories And Spare Parts

    WKS25 WKS25 ACCESSoRIES AND SPARE PAR TS ACCESSoRIES AND SPARE PAR TS 4 x plasterboard shaped sealing panels for wall installation B X H WKS25KIT[B][H] B = base nominal lenght (Eg. 100) H = height nominal lenght (Eg. 200) Kit microswitch S1-25-B board + 2 fixing screws, 25/23 series (compact manual) WHKS125C Kit microswitch S1-25 board + 2 fixing screws, 25/23 series WHKS125...
  • Page 45 WKS25 WKS25 ACCESSoRIES AND SPARE PAR TS Kit mechanism manual 25 series + carter + cam and lever + 2 fixing screws (without fuseholder group) WHK25MANB Kit mechanism manual 25 series + carter + cam and lever + elect. board S1-25 + 2 fixing screws WHK25MANBS2 (without fuseholder group) Manual mechanism for 25 series + elect.
  • Page 46 WKS25 WKS25 ACCESSoRIES AND SPARE PAR TS Siemens motor for dampers predisposed for use with GRA126, 24 V AC/DC power supply thermofuse 72 °CGRA126 Siemens motor for dampers predisposed for use with GRA326, 230 V AC power supply, thermofuse 72 °C GRA326 Pairing mounting kit WKSBA25[L] L = lenght to approach (Eg.
  • Page 47 WKS25 WKS25 ACCESSoRIES AND SPARE PAR TS Communication and power supply unit: BKN230-24 for Belimo motors BFL24T-ST, BFN24T-ST e BF24T-ST WHBKN23024 Modbus Communication and power supply unit: BKN230-24MOD for Belimo motors BFL24T-ST, BFN24T- WHKBKN230-24MOD ST and BF24T-ST Communication and power supply unit MPBUS for BKS24-9A or gateways Belimo UK24MOD and WHKBKN230-24-C-MP UK24BAC: BKN230-24-C-MP for Belimo motors BFL24T-ST, BFN24T-ST and BF24T-ST Modbus Communication and power supply unit: BKN230MOD for Belimo motors BFL230T, BFN230T and...

  • Page 48: How To Order

    WKS25 WKS25 HoW To oRDER HoW To oRDER Motorized fire dampers „ Code Type Rectangular fire damper wall fitted Series Blade thickness 25 mm - 500 Pa air sealing Siemens motor GRA126 (24V) Siemens motor GRA326 (230V) Motor type Belimo motor BFL24T (24V) Belimo motor BFL230T (230V) Belimo motor BFL24T-ST (24V) with connection plugs for integration in control and monitoring systems Base...
  • Page 49 WKS25 WKS25 HoW To oRDER Electric motor driven actuators „ Base Siemens Height Belimo Height Belimo Siemens 24 V 230V 24 V 230V BFL24T BFL230T GRA126 GRA326 49/54 49/54...

  • Page 50: Specification Text

    WKS25 WKS25 SPECIFICATIoN TExT SPECIFICATIoN TExT Series WKS25 compact rectangular fire damper „ Description • Installation within light walls made with gypsum blocks WKS25 rectangular fire damper tested for fire resistance 100 mm thick and minimum density 995 kg/m³ (EI 120 S) and smoke seal with 500 Pa depression as per EN 1366-2, or minimum thickness of 70 mm and minimum density classified according to EN 13501-3 and CE marked accord-...

  • Page 51: Revision Index

    WKS25 WKS25 REvISIoN INDEx REvISIoN INDEx Revision n° Date of issue Description 14/00 2014/11 First issue Added drawing: Fire dampers pairing for big ducts dimensions  p. 5 Added section: • Blade rotation axis positioning  p. 15 Added table: • Revision Index  p. 51 Updated section: •...
  • Page 53 As the manufacturer is constantly improving its products, the aesthetic or dimensional features, the technical data, the equipment and accessories indicated could be subject to variations.
  • Page 54 G. La Pira 9 A/b 35012 - Camposampiero (PD) - Italia Lindab | We simplify construction www.lindab.com - Fire dampers are manufactured by MP3 Srl www.mp3-italia.it phone 049 9303516 – fax 049 9317070 – www.mp3-italia.it *1MTLWKS25EN* *1MTLWKS25EN-LIND* *1MTLWKS25EN-LIND* rev 19-05...

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