Installation and operating manual GB/en Fire damper Type FKA-3.8 according to Declaration of Performance DoP / FKA-3.8 / DE / 002 Read the instructions prior to performing any task!
TROX GmbH Heinrich-Trox-Platz 47504 Neukirchen-Vluyn Germany Phone: +49 (0) 2845 2020 Fax: +49 (0) 2845 202-265 E-mail: trox@trox.de Internet: http://www.troxtechnik.com Translation of the original A00000050723,, GB/en 09/205 205 2
General information General information About this manual This operating and installation manual enables operating or service personnel to correctly install the TROX product described below and to use it safely and efficiently. This operating and installation manual is intended for use by fitting and installation companies, in-house technicians, technical staff, properly trained persons, and qualified electricians or air conditioning technicians. It is essential that these individuals read and fully understand this manual before starting any work. The basic prerequisite for safe working is to comply with the safety notes and all instructions in this manual. The local regulations for health and safety at work and general safety regulations also apply. This manual must be given to the facilities manager when handing over the system. The facilities manager must include the manual with the system documentation. The manual must be kept in a place that is accessible at all times. Illustrations in this manual are mainly for information and may differ from the actual design. Copyright This document, including all illustrations, is protected by copyright and pertains only to the corresponding product. Any use without our consent may be an infringement of copyright, and the violator will be held liable for any damage. This applies in particular to: Publishing content Copying content Translating content Microcopying content Saving content to electronic systems and editing it Limitation of liability The information in this manual has been compiled with reference to the applicable standards and guidelines, the state of the art, and our expertise and experience of many years. The manufacturer does not accept any liability for damages resulting from: Non-compliance with this manual Incorrect use Operation or handling by untrained individuals Unauthorised modifications Technical changes Use of non-approved replacement parts The actual scope of delivery may differ from the information in this manual for bespoke constructions, additional order options or as a result of recent technical changes. The obligations agreed in the order, the general terms and conditions, the manufacturer's terms of delivery, and the legal regulations in effect at the time the contract is signed shall apply. We reserve the right to make technical changes. Defects liability For details regarding defects liability please refer to Section VI, Warranty Claims, of the Delivery and Payment Terms of TROX GmbH. The Delivery and Payment Terms of TROX GmbH are available at www.troxtechnik.com. TROX Technical Service To ensure that a fault is processed as quickly as possible, please keep the following information ready: Delivery date of the TROX components and systems TROX order number Product name Brief description of the fault Contact in case of a fault Online www.troxtechnik.com Phone +49 2845 202-400 3
General information Safety notes Symbols are used in this manual to alert readers to areas of potential hazard. Signal words express the degree of the hazard. DANGER! Imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING! Potentially hazardous situation which, if not avoided, could result in death or serious injury. Safety notes as part of instructions Safety notes may refer to individual instructions. In this case, safety notes will be included in the instructions and hence facilitate following the instructions. The above listed signal words will be used. Example:. Untighten the screw. 2. CAUTION! Danger of finger entrapment when closing the lid. Be careful when closing the lid. 3. Tighten the screw. CAUTION! Potentially hazardous situation which, if not avoided, may result in minor or moderate injury. Specific safety notes The following symbols are used in safety notes to alert you to specific hazards: NOTICE! Potentially hazardous situation which, if not avoided, may result in property damage. Warning signs Type of danger Warning danger zone. ENVIRONMENT! Environmental pollution hazard. Tips and recommendations Useful tips and recommendations as well as information for efficient and fault-free operation. 4
Table of contents Safety... 6. General safety notes... 6.2 Correct use... 6.3 Qualified staff... 6 2 Technical data... 7 2. General data... 7 2.2 FKA-3.8 with fusible link... 8 2.3 FKA-3.8 with spring return actuator... 9 2.4 Flange holes... 2 3 Transport and storage... 3 4 Parts and function... 4 4. FKA-3.8 with fusible link... 4 4.2 FKA-3.8 with spring return actuator... 4 4.3 FKA-3.8 with spring return actuator and duct smoke detector... 5 5 Installation... 6 5. Installation situations... 6 5.2 Safety notes on installation... 6 5.3 General installation information... 6 5.3. After installation... 7 5.4 Solid walls... 8 5.4. Mortar-based installation... 8 6 Connecting the ductwork... 9 6. Limiting duct expansion... 9 6.2 Fire damper accessories... 9 6.2. Inspection access... 20 7 Making electrical connections... 2 7. Connecting the limit switches (fire dampers with fusible link)... 2 7.2 Connecting the spring return actuator... 2 7.3 Equipotential bonding... 22 8 Functional test... 23 8. Fire damper with fusible link... 23 8.2 Fire damper with spring return actuator... 24 9 Commissioning... 27 0 Maintenance... 28 0. General... 28 0.2 Lubricating points... 28 0.3 Replacing the fusible link... 29 0.4 Inspection, maintenance and repair measures... 30 Decommissioning, removal and disposal... 32 2 Index... 33 5
Safety Qualified staff Safety. General safety notes Sharp edges, sharp corners and thin sheet metal parts CAUTION! Danger of injury from sharp edges, sharp corners and thin sheet metal parts! Sharp edges, sharp corners and thin sheet metal parts may cause cuts or grazes. Be careful when carrying out any work. Wear protective gloves, safety shoes and a hard hat. Incorrect use WARNING! Danger due to incorrect use! Incorrect use of the fire damper can lead to dangerous situations. Never use the fire damper in areas with potentially explosive atmospheres as a smoke extract damper outdoors without sufficient protection against the effects of weather in atmospheres where chemical reactions, whether planned or unplanned, may cause damage to the fire damper or lead to corrosion Electrical voltage.3 Qualified staff DANGER! Danger of electric shock! Do not touch any live components! Electrical equipment carries a dangerous electrical voltage. Only skilled qualified electricians are allowed to work on the electrical system. Switch off the power supply before working on any electrical equipment..2 Correct use The fire damper is used as an automatic shut-off device to prevent fire and smoke from spreading through ducting. The fire damper is suitable for supply air and extract air systems. Operation of the fire dampers is allowed only in compliance with installation regulations and the technical data in this installation and operating manual. Modifications of the fire damper and the use of replacement parts that have not been approved by TROX are not permitted. WARNING! Danger of injury due to insufficiently qualified individuals! Incorrect use may cause considerable injury or damage to property. Only skilled qualified personnel must carry out work. The following degrees of qualification are required for the work described in the operating manual: Skilled qualified electrician Skilled qualified electricians are trained individuals who have specialist knowledge and experience and who know the relevant standards and guidelines to be able to work on electrical systems and to recognise and avoid potential dangers. Specialist personnel Specialist personnel are individuals who have sufficient professional or technical training, knowledge and actual experience to enable them to carry out their assigned duties, understand any potential hazards related to the work under consideration, and recognise and avoid any risks involved. 6
Technical data General data 2 Technical data 2. General data Nominal sizes B H Casing length L Volume flow rate range Differential pressure range 200 200 mm 500 800 mm 675 mm up to 4400 l/s up to 5840 m³/h up to 2000 Pa Operating temperature At least 0 50 C Release temperature 72 C or 95 C Upstream velocity 2 8 m/s with fusible link, Closed blade air leakage EN 75, Class 2 Casing air leakage 2 m/s with spring return actuator EN 75, Class C; (B + H) 700, Class B EC conformity Construction Products Regulation (EU) no. 305/20 EN 5650 Ventilation for buildings Fire dampers EN 366-2 Fire resistance tests for service installations Part 2: Fire dampers EN 350-3 Classification Part 3: Fire resisting ducts and fire dampers EN 75 Ventilation for buildings Air terminal devices Declaration of performance DoP / FKA-3.8-EU / DE / 002 ) Temperatures may differ for units with attachments 2) Data applies to uniform upstream and downstream conditions for the fire damper Rating plate 2 3 4 A########### TROX GmbH Heinrich-Trox-Platz 47504 Neukirchen-Vluyn GERMANY 2 www.trox-docs.com Jahr/year-## DoP / XXX-XX / DE / 0## EN 5650: 200 0749 / 322 Brandschutzklappe/fire damper XXX-XX EI TT (ve-ho, i o) S - (300 Pa) 5 6 7 8 9 0 Fig. : Rating plate (example) CE mark 2 Manufacturer's address 3 Number of the European standard and year of its publication 4 Notified body 5 The last two digits of the year in which the CE marking was affixed 6 Year of manufacture 7 No. of the declaration of performance 8 Website from which the DoP can be downloaded 9 Regulated characteristics; the fire resistance class depends on the application and may vary 0 Type 7
Technical data FKA-3.8 with fusible link 2.2 FKA-3.8 with fusible link Dimensions and weight 33 H/2-4 260 35 B 35 35 H 35 55 260 L = 675 W ~ 70 ~ 75 Fig. 2: FKA-3.8 with fusible link Keep clear to provide access to the release mechanism A Installation side B Operating side B Width of the fire damper (side B) H Height of the fire damper (side H) L Length of the fire damper (casing length) w 5 mm Weight [kg] B H [mm] [mm] 200 250 300 350 400 450 500 550 600 650 700 750 800 200 2 3 4 7 8 9 250 2 3 4 7 8 9 20 300 3 4 6 8 9 20 2 23 25 26 28 29 30 350 4 7 8 9 20 22 24 25 27 29 30 3 32 400 7 8 9 20 22 24 26 28 30 3 3 33 35 450 8 9 20 22 24 24 28 3 32 32 34 35 37 500 9 20 2 24 26 28 3 32 33 34 36 37 39 550 20 2 23 25 28 3 32 33 34 36 38 40 4 600 2 23 25 27 30 32 33 35 37 38 40 42 46 650 22 24 26 29 3 32 34 37 39 40 43 46 49 700 24 26 28 30 33 34 36 38 40 43 47 49 5 750 25 28 29 32 34 35 37 40 42 46 49 52 54 800 27 29 3 33 35 37 39 4 46 49 52 54 56 900 29 3 33 35 38 40 43 47 49 53 56 59 6 000 3 33 34 37 42 44 49 5 54 57 60 63 67 00 33 35 38 4 44 48 5 54 58 6 65 68 70 8
Technical data FKA-3.8 with spring return actuator Weight [kg] B H [mm] [mm] 200 250 300 350 400 450 500 550 600 650 700 750 800 200 35 38 40 43 47 5 54 58 62 66 69 7 73 300 37 40 42 45 50 53 58 62 66 69 72 74 76 400 39 42 44 48 53 57 6 65 69 73 76 79 8 500 42 45 49 53 57 62 67 72 76 8 84 87 90 Limit switch Connecting cable length / cross section m / 3 0.34 mm² Protection level IP 66 Type of contact changeover contact, gold-plated Maximum switching current 0.5 A Maximum switching voltage 30 V DC, 250 V AC Contact resistance approx. 30 mω 2.3 FKA-3.8 with spring return actuator Dimensions and weight 33 H/2-4 260 35 B 35 35 H 35 55 260 W ~ 00 L = 675 ~ 75 Fig. 3: FKA-3.8 with spring return actuator Keep clear to provide access to the spring return actuator A Installation side B Operating side B Width of the fire damper (side B) H Height of the fire damper (side H) L Length of the fire damper (casing length) w 5 mm 9
Technical data FKA-3.8 with spring return actuator Weight [kg] B H [mm] [mm] 200 250 300 350 400 450 500 550 600 650 700 750 800 200 4 5 6 7 20 2 22 250 5 6 7 20 2 22 23 300 6 7 9 2 22 23 24 26 28 29 3 32 33 350 7 20 2 22 23 25 27 28 30 32 33 34 35 400 20 2 22 23 25 27 29 3 33 34 34 37 38 450 2 22 23 25 27 27 3 34 35 35 37 38 40 500 22 23 24 27 29 3 34 35 36 37 39 40 42 550 23 24 26 28 3 34 35 36 37 39 4 43 44 600 24 26 28 30 33 35 36 38 40 4 43 45 49 650 25 27 29 32 34 35 37 40 42 43 46 49 52 700 27 29 3 33 36 37 39 4 43 46 50 52 54 750 28 3 32 35 37 38 40 43 45 49 52 55 57 800 30 32 34 36 38 40 42 44 49 52 55 57 59 900 32 34 36 38 4 43 46 50 52 56 59 62 64 000 34 36 37 40 45 47 52 54 57 60 63 66 70 00 36 38 4 44 47 5 54 57 6 64 68 7 73 200 38 4 43 46 50 54 57 6 65 69 72 74 76 300 40 43 45 48 53 56 6 65 69 72 75 77 79 400 42 45 47 5 56 60 64 68 72 76 79 82 84 500 45 48 52 56 60 65 70 75 79 84 87 90 93 Spring return actuator BLF... Construction 230-T TR 24-T-ST TR Supply voltage 230 V AC ±4 % 50/60 Hz 24 V AC ±20 % 50/60 Hz or 24 V DC 0 % / +20 % Power rating Spring compression 6 W 5 W Hold position 3 W 2.5 W Rating 7 VA Running time Motor / spring return 40 75 s / 20 s Limit switch Type of contact 2 changeover contacts Switching voltage Switching current Contact resistance 5 20 V DC / 5 250 V AC ma 3 A < 00 mω IEC protection class II III ¹ Up to 75 C the safe position will definitely be reached. 0
Technical data FKA-3.8 with spring return actuator Spring return actuator BLF... Construction 230-T TR 24-T-ST TR Protection level IP 54 Storage temperature -40 to 50 C Ambient temperature -30 to 50 C ¹ Ambient humidity 95 % RH, non-condensing Connecting cable Actuator m / 2 0.75 mm² (free of halogens) Limit switch m / 6 0.75 mm² (free of halogens) ¹ Up to 75 C the safe position will definitely be reached. Spring return actuator BF... Construction 230-T TR 24-T-ST TR Supply voltage 230 V AC ±4 % 50/60 Hz 24 V AC ±20 % 50/60 Hz or 24 V DC 0 % / +20 % Power rating Spring compression 8 W 7 W Hold position 3 W 2 W Rating 2.5 VA 0 VA Running time Motor / spring return approx. 40 s / approx. 6 s Limit switch Type of contact 2 changeover contacts Switching voltage Switching current Contact resistance 5 20 V DC / 5 250 V AC ma 6 A < 00 mω IEC protection class II III Protection level IP 54 Storage temperature -40 to 50 C Ambient temperature -30 to 50 C ¹ Ambient humidity 95 % RH, non-condensing Connecting cable Actuator m / 2 0.75 mm² (free of halogens) Limit switch ¹ Up to 75 C the safe position will definitely be reached. m / 6 0.75 mm² (free of halogens)
Technical data Flange holes 2.4 Flange holes 300 300 R6,5 35 H 35 0 7,5 R4,5 35,5 35 B 7,5 Fig. 4: Flange uneven number of holes 300 300 R6,5 35 H 35 0 300 7,5 R4,5 35,5 35 B 7,5 Fig. 5: Flange even number of holes B or H [mm] No. of holes horizontally (B)* No. of holes vertically (H)* 200 300 400 500 600 650 750 900 00 300 500 250 350 450 550 700 800 000 200 400 2 2 3 3 4 4 2 2 * excluding corner holes 2
Transport and storage 3 Transport and storage Delivery check Check delivered items immediately after arrival for transport damage and completeness. In case of any damage or an incomplete shipment, contact the shipping company and your supplier immediately. Fire damper Attachments/accessories, if any Operating manual ( per shipment) Colour hues on the damper blade The blades of fire dampers are treated with a greenish impregnating agent. Resulting colour hues on the damper blade are due to technical reasons and do not constitute a defect of any kind. Transport on site If possible, take the fire damper in its transport packaging up to the installation location. Storage If the unit has to be stored temporarily: Remove any plastic wrapping. Protect the unit from dust and contamination. Store the unit in a dry place and away from direct sunlight. Do not expose the unit to the effects of weather (not even in its packaging). Do not store the unit below -40 C or above 50 C. Packaging Properly dispose of packaging material. 3
Parts and function FKA-3.8 with spring return actuator 4 Parts and function Fire dampers are used as safety related components in ventilation systems. The fire damper is used as a shutoff device to prevent fire and smoke from spreading through ducting. During normal operation the damper blade is open to enable air passage through the ventilation system. If the temperature increases in the event of a fire, the damper blade closes. Closure is triggered at 72 C or 95 C. If the damper blade closes due to a temperature increase (i.e. in the event of a fire), it must not be reopened. To ensure proper functioning of the fire damper, a test can be carried out. Ä 23 4. FKA-3.8 with fusible link 2 3 4 5 As an option, the fire damper can be either supplied or subsequently fitted with one or two limit switches. The limit switches can signal the damper blade position to the central BMS or fire alarm system. One limit switch each is required for damper blade positions OPEN and CLOSED. 4.2 FKA-3.8 with spring return actuator 2 3 4 5 6 6 0 4 7 8 9 7 4 Fig. 7: FKA-3.8 with spring return actuator Casing 2 Damper blade 3 Travel stop for OPEN position 4 Inspection access 5 Thermoelectric release mechanism 6 Spring return actuator 7 Travel stop (angle section) for CLOSED position Fig. 6: FKA-3.8 with fusible link Casing 2 Damper blade 3 Travel stop for OPEN position 4 Inspection access 5 Fusible link 6 Release mechanism 7 Handle/damper blade position indicator 8 Limit switch (optional) 9 Locking 0 Travel stop (angle section) for CLOSED position Functional description In fire dampers with a fusible link, damper closure is triggered by the fusible link. If the temperature inside the fire damper rises to 72 C or 95 C, the fusible link triggers a coil spring mechanism. The coil spring mechanism then causes the fire damper to close. Functional description The spring return actuator enables the motorised opening and closing of the damper blade; it can be activated by the central BMS. As long as power is supplied to the actuator, the damper blade remains open. In the event of a fire, the internal thermoelectric release mechanism closes the damper blade when at least one of the following is true: Temperature in the fire damper > 72 C or 95 C Ambient temperature outside the release mechanism > 72 C The power supply is interrupted (power off to close) As standard, the spring return actuator is equipped with limit switches that can be used to indicate the damper blade position. 4
Parts and function FKA-3.8 with spring return actuator an... 4.3 FKA-3.8 with spring return actuator and duct smoke detector 2 3 4 5 6 8 7 Fig. 8: FKA-3.8 with spring return actuator and duct smoke detector Casing 2 Damper blade 3 Travel stop for OPEN position 4 Duct smoke detector RM-O-3-D (fixed with adapter metal sheet) 5 Thermoelectric release mechanism 6 Spring return actuator 7 Inspection access 8 Travel stop (angle section) for CLOSED position Functional description If smoke is detected, the spring return actuator and the smoke detector shut the fire damper by means of a motor. This prevents the smoke from being transferred via ductwork into adjacent fire compartments that are already below the reaction temperature of the electrothermal release mechanism. As long as power is supplied to the actuator, the damper blade remains open. In the event of a fire, the fire damper shuts when at least one of the following is true: Smoke detected at the smoke detector Temperature in the fire damper > 72 C Ambient temperature outside the release mechanism > 72 C The power supply is interrupted (power off to close) 5
Installation General installation information 5 Installation 5. Installation situations Note The performance classes of the fire damper and the wall or ceiling slab may differ. The lower performance class determines the performance class of the overall system. Solid walls Gross density 25 kg/m³ Installation location Supporting construction Minimum thickness [mm] Performance class EI TT (ve, i o) S Installation type Installation details on page Solid walls 50 EI 80 S N Ä 8 N = Mortar-based installation 5.2 Safety notes on installation Sharp edges, sharp corners and thin sheet metal parts CAUTION! Danger of injury from sharp edges, sharp corners and thin sheet metal parts! Sharp edges, sharp corners and thin sheet metal parts may cause cuts or grazes. Be careful when carrying out any work. Wear protective gloves, safety shoes and a hard hat. Please note: Operating components, electric actuator, and inspection access must remain accessible for inspection and maintenance work. Loads imposed on the casing may impair the function of the fire damper. The fire damper must hence be installed without torsion. Mortar-based installation: The perimeter gap»s «must be large enough such that mortar can be filled in even in case of thicker walls. Close larger installation openings or cut holes according to the wall structure, e.g. masonry work. Before installation: Perform a functional test, then close the fire damper.ä 23 5.3 General installation information NOTICE! Damage to the fire damper Protect the fire damper from contamination and damage. Cover openings and release mechanism (e.g. with plastic foil) to protect them from mortar and dripping water. Do not remove the transport and installation protection (if any) until installation is complete. 6
Installation General installation information > After installation Installation position The fire damper may be installed such that the damper blade shaft is horizontal. The position of the release mechanism is not critical but the mechanism must remain accessible for maintenance. Fig. 9: Horizontal installation a Minimum distance between two fire dampers. The distance depends on the installation situation and the position of the actuators. Horizontal installation Installation opening in solid walls a Acceptable mortars for mortar-based installation In case of mortar-based installation, the open spaces between the fire damper casing and the wall must be closed off with mortar. Entrapped air is to be avoided. The mortar bed depth should be equal to the thickness of the wall but must be at least 50 mm. The following mortars are acceptable: DIN 053: Groups II, IIa, III, IIIa; fire protection mortar of groups II, III EN 998-2: Classes M 2.5 to M 0 or fire protection mortar of classes M 2.5 to M 0 Equivalent mortars that meet the requirements of the above standards, gypsum mortar or concrete 5.3. After installation Clean the fire damper. Remove transport and installation protection, if any. In case of mortar-based installation this protection must not be removed until the mortar has hardened. Test the function of the fire damper. Connect the ductwork. Make electrical connections. Fig. 0: Installation opening in a solid wall Depending on the local conditions and the size of the fire damper, installation openings in a solid wall require a lintel. The size of each installation opening is given in the installation details. Mortar-based installation 2 Fig. : Fire damper with prop If the fire damper is mortared in place, the fire damper casing must be protected against deformation by a prop 2, for example. 7
Installation Solid walls > Mortar-based installation 5.4 Solid walls 5.4. Mortar-based installation 675 260 W s 85 Fig. 2: Installation into a solid wall Mortar A Installation side Personnel: Specialist personnel B Operating side Materials: Mortar Ä Acceptable mortars for mortar-based installation on page 7 Requirements Performance class EI 80 S Solid walls or fire walls made of, for example, concrete, masonry, or solid gypsum wallboards according to EN 2859 (without open spaces), gross density 25 kg/m³ and W 50 mm 75 mm distance to load-bearing structural elements 200 mm distance between two fire dampers. Create an installation opening with H + 70 mm and B + 70 mm or larger. 2. Push the fire damper into the installation opening and secure it. Make sure that the distance from the flange on the operating side to the wall is 260 mm. 3. Close off the perimeter gap»s«with mortar. The mortar bed depth must be at least 50 mm. Installation into a wall under construction If the fire damper is installed as the wall is being erected, the perimeter gap»s«can be reduced. The open spaces between the fire damper and the wall must be closed off with mortar. Entrapped air is to be avoided. The mortar bed depth should be equal to the thickness of the wall. 8
Connecting the ductwork Fire damper accessories 6 Connecting the ductwork Flexible connectors 6. Limiting duct expansion ① ② ② ① Fig. 4: FKA-3.8 with flexible connector Fig. 3: Limiting loads Ducting must be installed in such a manner that it does not impose any significant loads on the fire damper in the event of a fire. The expansion of ducts in the event of a fire can be compensated by brackets and turns, Fig. 3. ① ② Flexible connector Duct Installation side Operating side Install the flexible connectors in such a way that they can compensate both tension and compression. Flexible ducts can be used as an alternative. If flexible connectors are used, equipotential bonding must be ensured Ä Chapter 7.3 Equipotential bonding on page 22. 6.2 Fire damper accessories Extension piece Cover grille Depending on the design, when using cover grilles, circular spigot plates, flexible connectors, pipe bends, etc., an extension piece may be required for certain heights. Refer to the table for minimum lengths required. If only one end is to be ducted on site, the other end must have a cover grille (galvanised steel, mesh aperture 20 mm). Extension pieces H Operating side Installation side 200 550 600 800 20 200 600 650 800 20 ① ② Note The movement of the damper blade must not be obstructed by any accessory. The distance between the tip of the open damper blade and any accessory must be at least 50 mm. Fig. 5: Fire damper with cover grille ① ② Cover grille Duct Installation side Operating side 9
Connecting the ductwork Fire damper accessories > Inspection access Circular spigot Fig. 6: Fire damper with circular spigot Circular spigot A Installation side B Operating side 6.2. Inspection access The interior of the fire damper must remain accessible for repairs. For this purpose, FKA-3.8 fire dampers have two inspection panels Ä Chapter 4 Parts and function on page 4. Depending on the installation configuration it may be necessary to provide additional inspection access points in the connecting ducts. 20
Making electrical connections Connecting the spring return actuator 7 Making electrical connections General safety notes DANGER! Danger of electric shock! Do not touch any live components! Electrical equipment carries a dangerous electrical voltage. Only skilled qualified electricians are allowed to work on the electrical system. Switch off the power supply before working on any electrical equipment. 7. Connecting the limit switches (fire dampers with fusible link) Personnel: Skilled qualified electrician GN WH BN WH 3 30 V DC 3 250 V AC 3 30 V DC 3 250 V AC Fig. 7: Wiring example for limit switch Indicator light or relay, to be provided by others The limit switches must be connected according to the wiring example Fig. 7 Indicator lights or relays can be connected as long as the performance specifications are taken into consideration. Connection boxes must be fixed to the adjoining structure (wall or ceiling slab). They must not be fixed to the fire damper. Type of connection A NC contact Limit switch Damper blade not actuated CLOSED or OPEN position is not reached Electric circuit closed Type of connection B NO contact Limit switch actuated Damper blade CLOSED or OPEN position is reached Electric circuit closed 7.2 Connecting the spring return actuator Personnel: Skilled qualified electrician 230 V AC 24 V AC/DC N( ) N 2 L L(+) 2 5 250 V AC 5 30 V DC N( ) L(+) 3 4 S S2 S3 S4 S5 S6 <5 <80 Fig. 8: Actuator connection, example Switch for opening and closing, to be provided by others 2 Optional release mechanism, e.g. TROX smoke detector Type RM-O-3-D or RM-O-VS-D 3 Indicator light for CLOSED position, to be provided by others 4 Indicator light for OPEN position, to be provided by others The fire damper may be equipped with a spring return actuator for a supply voltage 230 V AC or 24 V AC/DC. Observe the performance data on the rating plate. The spring return actuator must be connected according to the wiring example shown. Several actuators can be connected in parallel as long as the performance specifications are taken into consideration. Connection boxes must be fixed to the adjoining structure (wall or ceiling slab). They must not be fixed to the fire damper. Actuators with 24 V AC/DC Safety transformers must be used. The connecting cables are fitted with plugs. This ensures quick and easy connection to the TROX AS-i bus system. For connection to the terminals, shorten the connecting cable. 2
Making electrical connections Equipotential bonding 7.3 Equipotential bonding If equipotential bonding is a requirement, there must be an electrical earth connection from the fire damper to the duct. In the event of a fire, mechanical loads from the equipotential bonding must not affect the fire damper. Fire dampers with flange: The flange of the fire damper is used for equipotential bonding; no drilled holes are required in the damper casing. Fire dampers without flange (circular): Suitable clamps or similar parts may be used for equipotential bonding. It is possible to make drilled holes near the spigot. 22
Functional test Fire damper with fusible link 8 Functional test General During operation at normal temperatures, the damper blade is open. A functional test involves closing the damper blade and opening it again. 8. Fire damper with fusible link Damper blade position indicator The position of the damper blade is indicated by the position of the operating lever. 2 Closing the damper blade 2 Fig. 20: Closing the damper blade Fig. 9: Damper blade position indicator Damper blade is closed 2 Damper blade is open CAUTION! Danger of injury when reaching into the fire damper while the damper blade is moving. Do not reach into the fire damper while actuating the release mechanism. Requirement The damper blade is OPEN Pull the handle forwards and release it again. ð The damper blade closes automatically and clicks into the CLOSED position on the lock 2. 23
Functional test Fire damper with spring return actuator Opening the damper blade 3 8.2 Fire damper with spring return actuator Status indicator 4 2 Fig. 2: Opening the damper blade Requirement The damper blade is CLOSED. Pull the handle forwards and hold it. 2. Then rotate the operating lever 3 by 90 towards the release mechanism 4. 3. Press the handle towards the release mechanism. ð Handle locks into the OPEN position in the release mechanism and the damper blade is open. Fig. 22: Thermoelectric release mechanism Toggle switch for functional test 2 Indicator light The indicator light 2 for the thermoelectric release mechanism is illuminated when all of the following conditions apply: Power is supplied. The thermoelectric release is in order. The toggle switch is not being pushed. Damper blade position indicator The position of the damper is indicated by the pointer on the actuator. 2 Fig. 23: Damper blade position indicator Damper blade is closed 2 Damper blade is open 24
Functional test Fire damper with spring return actuator Closing/opening the damper blade with spring return actuator Opening the damper blade using the crank handle 2 Fig. 25: Functional test Fig. 24: Functional test CAUTION! Danger of injury when reaching into the fire damper while the damper blade is moving. Do not reach into the fire damper while actuating the release mechanism. Requirement Power is being supplied. Push toggle switch and keep it pushed. ð This interrupts the power supply, and the damper blade closes. 2. Check if the damper blade is CLOSED, check running time. 3. Release the toggle switch. ð Voltage is supplied again, and the damper blade opens. 4. Check if the damper blade is OPEN, check running time. DANGER! Danger due to malfunction of the fire damper. If the damper blade has been opened by means of the crank handle (without power supply), it will no longer be triggered by a temperature increase, i.e. in the event of a fire. In other words, the damper blade will not close. To re-establish its function, connect the power supply. Requirement The damper blade is CLOSED. Insert the crank handle into the opening for the spring-winding mechanism. (The crank handle is clip-fixed to the connecting cable.) 2. Turn the crank handle into the direction of the arrow 2 to just short of the travel stop. 3. Then quickly rotate the crank handle by approx. 90 towards the 'lock' position. ð The damper blade remains in the OPEN position. 4. Remove the crank handle. Functional test with automatic control unit The function of fire dampers with a spring return actuator can also be tested with an automatic control unit. The control unit should have the following functions: Opening and closing fire dampers in regular intervals (intervals to be set by the owner or operator) Monitoring of the actuator running times Issuing an alarm when the running times are exceeded and when fire dampers close Recording the test results TROXNETCOM systems such as TNC-EASYCON- TROL or AS-interface meet all these requirements. For details on these products please refer to the TROX Fire and Smoke Protection catalogue. 25
Functional test Fire damper with spring return actuator Closing the damper blade using the crank handle Fig. 26: Functional test CAUTION! Danger of injury when reaching into the fire damper while the damper blade is moving. Do not reach into the fire damper while actuating the release mechanism. Requirement The damper blade is OPEN. Insert the crank handle into the opening for the spring-winding mechanism. (The crank handle is clip-fixed to the connecting cable.) 2. Rotate the crank handle by approx. 90 towards the 'unlock' position until a click can be heard. ð The damper blade closes. 3. Remove the crank handle. 26
Commissioning 9 Commissioning Before commissioning Before commissioning, each fire damper must be inspected to determine and assess its actual condition. The inspection measures to be taken are listed in the table on Ä on page 30. Operation During normal operation the damper blade is open to enable air passage through the ventilation system. If the temperature in the duct or the ambient temperature rises in the event of a fire ( 72 C or 95 C), the thermal release mechanism is triggered and closes the damper blade. CLOSED fire dampers Fire dampers which close while the ventilation and air conditioning system is running must be inspected before they are opened again in order to ensure their correct function Ä Inspection on page 28. 27
Maintenance Lubricating points 0 Maintenance 0. General General safety notes DANGER! Danger of electric shock! Do not touch any live components! Electrical equipment carries a dangerous electrical voltage. Only skilled qualified electricians are allowed to work on the electrical system. Switch off the power supply before working on any electrical equipment. CAUTION! Danger due to inadvertently actuating the fire damper. Inadvertent actuation of the damper blade or other parts can lead to injuries. Make sure that the damper blade cannot be released inadvertently. Maintenance The fire damper and the spring return actuator are maintenance-free with regard to wear but fire dampers must still be included in the regular cleaning of the ventilation system. Cleaning The fire damper may be cleaned with a dry or damp cloth. Sticky dirt or contamination may be removed with a commercial, non-aggressive cleaning agent. Do not use abrasive cleaners or tools (e.g. brushes). Inspection The fire damper must be inspected before commissioning. After commissioning, the function has to be tested in regular intervals. Local requirements and building regulations must be complied with. The inspection measures to be taken are listed under Ä on page 30. The test of each fire damper must be documented and evaluated. If the requirements are not fully met, suitable remedial action must be taken. Repair Regular care and maintenance ensure operational readiness, functional reliability, and long service life of the fire damper. The owner or operator of the system is responsible for the maintenance of the fire damper. The operator is responsible for creating a maintenance plan, for defining the maintenance objectives, and for the functional reliability of the fire damper. For safety reasons, repair work must only be carried out by expert qualified personnel or the manufacturer. Only original replacement parts are to be used. A functional test Ä 23 is required after any repair work. 0.2 Lubricating points Only lubricate the fire damper if the damper blade cannot be opened or closed easily. Use only oil or grease that is free of resins or acids. Functional test The functional reliability of the fire damper must be tested at least every six months; this has to be arranged by the owner or operator. If two consecutive tests, one 6 months after the other, are successful, the next test can be conducted one year later. The functional test must be carried out in compliance with the basic maintenance principles of the following standards: EN 3306 DIN 305 EN 5423 The function of fire dampers with a spring return actuator can also be tested with an automatic control unit Ä Functional test with automatic control unit on page 25. Fire damper with fusible link 3 Fig. 27: Lubricating points Bearings 2 Release mechanism 3 Damper blade bearings (both sides) 4 Push rod bearings 4 2 4 28
Maintenance Replacing the fusible link Fire damper with spring return actuator 4 0.3 Replacing the fusible link 2 4 3 Fig. 28: Lubricating points Bearings 3 Damper blade bearings (both sides) 4 Push rod bearings Fig. 29: Removing the fusible link holder. Close the damper blade. 2. Release screws on the fusible link holder 2. 3. Remove fusible link holder 2 from the fire damper. 4 3 5 Fig. 30: Replacing the fusible link 4. Insert the pins 3 of the fusible link holder into the corresponding holes of the tool 4 (article no. E 57 NE 0). 5. Use the tool to compress the spring of the fusible link holder. 6. Remove old fusible link, hook in new fusible link 5. 7. Put the fusible link holder back into the fire damper and fix it with screws. 8. Carry out functional test. 29
Maintenance Inspection, maintenance and repair mea... 0.4 Inspection, maintenance and repair measures Interval Maintenance work Personnel A A / B Accessibility of the fire damper Internal and external accessibility Provide access Installation of the fire damper Installation according to the operating manual Ä 6 Install the fire damper correctly. Transport and installation protection, if any Transport/installation protection has been removed Remove transport/installation protection Connection of ductwork/cover grille/flexible connector Ä 9 Connection according to this manual Establish correct connection Power supply to the spring return actuator Power supply according to spring return actuator rating plate Provide correct power supply Check fire damper for damage Fire damper, damper blade and seal must be intact Replace the damper blade Repair or replace the fire damper. Function of the release mechanism Function OK Fusible link intact/no corrosion Replace the fusible link Replace the release mechanism Functional test of the fire damper (with fusible link) Ä 23 Fire damper can be opened manually Handle can be locked in the OPEN position Damper blade closes independently when triggered manually Determine and eliminate the cause of the fault Repair or replace the fire damper Replace the release mechanism Functional test of the fire damper (with spring return actuator) Ä 23 Function OK Damper blade closes Damper blade opens Determine and eliminate the cause of the fault Replace the spring return actuator Repair or replace the fire damper Function of external smoke detector Function OK Fire damper closes when triggered manually or when smoke is detected Fire damper opens after reset Determine and eliminate the cause of the fault Repair or replace smoke detector Specialist personnel Specialist personnel Specialist personnel Specialist personnel Skilled qualified electrician Specialist personnel Specialist personnel Specialist personnel Specialist personnel Specialist personnel 30
Maintenance Inspection, maintenance and repair mea... Interval Maintenance work Personnel C Interval Cleaning the fire damper No contamination in the interior or on the exterior of the fire damper No corrosion Remove contamination with a damp cloth Remove corrosion or replace part A = Commissioning B = Regularly Specialist personnel The functional reliability of fire dampers must be tested at least every six months. If two consecutive tests are successful, the next test can be conducted one year later. C = As required, depending on the degree of contamination Maintenance work Item to be checked Required condition Remedial action if necessary 3
Decommissioning, removal and disposal Decommissioning, removal and disposal Final decommissioning Switch off the ventilation system. Switch off the power supply. Removal DANGER! Danger of electric shock! Do not touch any live components! Electrical equipment carries a dangerous electrical voltage. Only skilled qualified electricians are allowed to work on the electrical system. Switch off the power supply before working on any electrical equipment.. Disconnect the wiring. 2. Remove the ducts. 3. Close the damper blade. 4. Remove the fire damper. Disposal For disposal, the fire damper must be disassembled. ENVIRONMENT! Dispose of electronic components according to the local electronic waste regulations. 32
Index 2 Index C Casing... 4, 5 Casing length... 8, 9 Circular spigot... 20 Cleaning... 28 Commissioning... 27 Copyright... 3 Correct use... 6 Cover grille... 9 D Damper blade... 4, 5 Damper blade position indicator... 4, 23, 24 Decommissioning... 32 Defects liability... 3 Dimensions... 8, 9 Disposal... 32 Duct expansion... 9 E Equipotential bonding... 22 F Flexible connectors... 9 Functional description... 4, 5 Functional test... 23 Fusible link... 4, 29 H Handle... 4 I Inspection... 28, 30 Inspection access... 5, 20 Installation position... 7 Installation side... 8, 9 Installation situations... 6 L Limitation of liability... 3 Limit switch... 2 Lip seal... 4 Locking... 4 Lubricating points... 28 M Maintenance... 28 N No. of holes... 2 O Operating side... 8, 9 Operation... 27 P Packaging... 3 R Rating plate... 7 Release mechanism... 4 Removal... 32 Repair... 28, 30 S Seal... 4 Side B... 8, 9 Side H... 8, 9 Smoke detector... 5 Solid walls... 8 Spring return actuator... 0, 4, 5, 2 Staff... 6 Storage... 3 Symbols... 4 T Technical data... 7 Technical service... 3 Temperature sensor... 4, 5 Thermoelectric release mechanism... 4, 5 Transport... 3 Transport damage... 3 Travel stop... 4 Travel stop (angle section)... 4 W Weight... 8, 9 33
34
35
36