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Technical Documentation "Installation, Mounting and Operating Instructions" General building supervisory approval Z-6.50-2012

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Fire-resistant damper model BKA-Ü Technical documentation Description DESCRIPTION Fire-resistant dampers of special design and use are used if, as part of ventilation planning, openings are required in fireresistant inner walls or ceilings for the air intake, they must be closed in the event of a fire. The competent building supervisory authority will decide whether the opening is admissible, for example because it differs or in connection with the approval of the fire protection concept. The required dampers are fire-resistant dampers which are closed in case of fire driven by a suitable...

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ichAkoIFire-resistant damper model BKA-U Technical documentation Models and dimensionsMODELS AND DIMENSIONSDimensions Legend Width Height Length Density at least maximum or approximately Utility company Version: 2015-08-17 | Document: 09/20 | Page 3 Construction subject to change No return possible 1 Fire damper BKA-EN (component of BKA-U) Assembly part type EBT Extension piece type VT Finishing protective grating type ASG Electric spring return actuator 24 V Smoke detector RMSII-L Protective cover

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vchAko Fire-resistant damper model BKA-U Technical documentation Models and dimensions Table 1: Available sizes Available at an extra charge • All heights and widths which can be combined are available! • Drive unit always on the H side of the fire damper. • Inspection openings always on the B side of the fire damper. • On request, the width and height dimensions are available in steps of 10 mm. • For wall installation, the smoke detector must always be installed above in the assembly part type EBT with the damper blade axle in the horizontal position. • Stainless steel model with material...

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ichAkoIFire-resistant damper model BKA-U Technical documentation Models and dimensionsUse The fire-resistant damper BKA-U can be installed according to the following table. Even considering the installation of the dampers in walls and ceilings mentioned above, they still meet the requirements of the corresponding fire resistance class (resistance duration 90 minutes). 11 For wall installation, the smoke detector must always be installed above in the assembly part type EBT with the damper blade axle in the horizontal position. 2) When installing in solid ceilings, the dimensions of the...

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Fire-resistant damper model BKA-Ü Technical documentation Installation details Risk of injuries during mounting or installation. To avoid any possible injuries, personal protective equipment (PPE) must be worn. Fire-resistant dampers must be installed such that external forces do not impair their continuous functioning. During mounting, it may be necessary to provide reinforcements for the housing or the like. The requirement of statically load-bearing lintels has to be considered. Improper transport/handling may result in damage/functional impairment. Furthermore, the film of the transport...

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Fire-resistant damper model BKA-Ü Technical documentation Installation details Minimum gap size with complete mortar lining Installation with partial mortar lining Installation of the fire-resistant damper in an existing wall recess or a wall recess to be constructed. It has to be designed in such a way that the minimum gap size between the housing and solid wall smin is 40 mm (maximum gap size smax ≤ 60 mm). The gap "s" must be completely filled with mortar of category M2.5 to M15 to EN 998-2, NM II to III DIN V 18580 (previously: MG II to III to DIN 1053) or fire protection mortar of...

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Fire-resistant damper model BKA-Ü Technical documentation Installation details Installation in solid ceilings  Installation in solid ceilings made, for example, of concrete, aerated concrete, apparent density ≥ 500 kg/m³ and ceiling thickness D ≥ 125 mm.  When installing in solid ceilings, the dimensions of the fireresistant damper BKA-Ü are limited to W and H = 500 mm.  Installation of no more than 2 BKA-Üs next to each other "flange-to-flange" without clearance in solid walls. The circumferential gaps and the gap between the housing of BKA-Ü must be filled completely to the minimum...

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Fire-resistant damper model BKA-Ü Technical documentation Installation details Installation in lightweight partition walls with metal posts and panelling on both sides Wet installation (circumferential mortar lining)  Installation without mounting frame ER in lightweight partition walls with metal posts and panelling on both sides (gypsum-bonded wall boards; wall thickness W≥ 100 mm) as classified according to EN 13501-2 or comparable national standards.  No additional, permanent suspensions or attachments of BKA-Ü are allowed, and installation and mounting aids must be removed.  The...

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Fire-resistant damper model BKA-Ü Technical documentation Installation details Installation procedure  Mount the metal posts and the wall according to the specifications of the wall manufacturer and the required spare parts as shown in Figure 7.  Provide a recess for the wet installation of BKA-Ü (pos. 1)  On both B sides of the exchange profiles (in ⅓ of the points), 2 bent perforated plates each (t ≥ 0.5 mm; width x length = 40 x 70 mm), must be fastened as mortar anchor (pos. 14). They must be screwed to the metal profiles in the wall centre, using one dry-wall screw each, and cast in...

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Fire-resistant damper model BKA-Ü Technical documentation Installation details Installation procedure The general information regarding installation without mounting frame ER in lightweight partition walls with metal posts and panelling on both sides (gypsum-bonded wall boards; wall thickness W≥ 100 mm) as classified according to EN 13501-2 or comparable national standards must be observed.  Mount the metal posts of the wall in accordance with the specifications of the wall manufacturer and the required spare parts as shown in Figure 7.  Insert BKA-Ü (pos. 1) into the wall recess...

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