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- D+H EURO-SHEV: Smoke ventilation according to DIN EN 12101-2
D+H EURO-SHEV: Smoke ventilation according to DIN EN 12101-2
D+H EURO-SHEV: Smoke ventilation according to DIN EN 12101-2
Since September 2006, all natural smoke and heat exhaust ventilators (NSHEVs) must comply with DIN EN 12101-2 standards or receive individual approval. This standard is part of the Construction Products Directive and soon the Construction Products Regulation. NSHEVs are required by building regulations in Germany when a natural smoke vent is necessary. D+H Mechatronic AG offers a range of certified systems for planning and implementing NSHEVs, capable of handling high weights, snow, and wind loads.
D+H Mechatronic AG pioneered electric motor-driven smoke and heat exhaust ventilation systems and was the first to receive DIN EN ISO 9001 certification. With a global network of service and sales partners, D+H provides comprehensive services from development to installation, ensuring consistent quality.
The EN 12101 series of standards aims to facilitate free trade while defining minimum product requirements and standardizing test methods in Europe. Products must pass tests at notified centers and undergo factory inspections to receive CE marking. Notified test centers in Germany include VdS Schadenverhütung GmbH and Institut für Industrieaerodynamik GmbH.
The document outlines various parts of the EN 12101 standards, including specifications for smoke barriers, powered smoke and heat exhaust ventilators, and natural smoke vent systems. It also details the testing requirements for reliability, snow load, wind load, low ambient temperatures, and resistance to heat.
Sample calculations for determining the stroke in roof and vertical facade installations are provided. These include determining geometric opening areas, width/height ratios, opening angles, and the number of windows required for smoke sections.
Details on installation positions for D+H drives on windows in vertical facades and roof areas are included, along with information on D+H bracket sets.
The document provides explanations of terms and symbols used in accordance with EN 12101-2, aiding in understanding the technical language used throughout the document.
The EN 12101 series consists of ten sections, adopted in German standards or published as technical reports. EN 12101-10 is used as a test standard for electrical power supply units in smoke and heat exhaust ventilation systems (SHEVs).
This standard applies to natural smoke and heat exhaust ventilators (NSHEVs), specifying requirements and test methods for both roof and facade systems. It supersedes the German standard DIN 18232-3.
NSHEVs can be installed with chain or rack and pinion drives. Facade systems require wind-sensitive controls, while roof systems do not. Installation conditions for roof NSHEVs include specific angles and distances to ensure aerodynamic efficiency.
NSHEVs are tested for reliability (RE class), resistance to heat (B class), low ambient temperatures (T class), wind load (WL class), and snow load (SL class). These classes determine the operational limits and conditions for NSHEVs.
EN 12101-2 requires the specification of the aerodynamic free opening area for smoke extraction, calculated using the clear geometric area and the coefficient of discharge.
Requirements include a single unit drive and window, opening time ≤ 60 seconds, and the use of tested and certified components. Deviations invalidate the certificate.
Initial type testing and inspection are required for CE certification. Manufacturers must establish factory production control and quality plans. Options for window manufacturers include in-house certification or external procurement of complete NSHEVs.
This procedure allows for the use of Euro-SHEV solutions without separate manufacturer certification, offering competitive advantages and cost savings for window manufacturers and D+H partners.
Testing includes reliability and load tests on NSHEVs. Reliability testing involves opening and closing NSHEVs multiple times, while snow load testing assesses performance under specific conditions.
- Functional Position Test: The NSHEV must open to its functional position within 60 seconds of a load being applied and remain in position. This test is repeated twice if successful.
- Low Ambient Temperature Test: The NSHEV must open within 60 seconds at low temperatures (e.g., -10°C), testing the freeze behavior of seals and the load on the electromotive drive. The minimum performance class is T(-05).
- Wind Load Test (WL): A dummy load simulates a suction load on the vertical facade. The casement must not open, and the aerodynamic free area must not reduce by more than 10% after 30 minutes under load.
- Aerodynamic Free Opening Area Test: Measurements determine the coefficient of discharge (Cv or Cv0) and calculate the aerodynamic free opening area (Aa).
- Resistance to Heat Test: The NSHEV is heated to 300°C and must open fully within 60 seconds, remaining open for 25 minutes.
The manufacturer must establish factory production control to ensure NSHEV performance classes are met, verified by a notified test center. A product-specific quality plan defines test frequency for components and finished products.
After testing, the NSHEV distributor receives the EC Certificate of constancy of performance, authorizing CE marking. The certificate includes product and classification characteristics.
EN 12101-2 specifies CE type plate information, including manufacturer details and performance classes. The declaration of conformity confirms compliance with directives and standards, signed by the certified company and Euro-SHEV partner.
No minimum performance class values are defined in EN 12101-2, placing responsibility on planners and specialists to ensure manufacturer specifications meet location requirements.
Standards for control units (prEN 12101-9) and energy supply (EN 12101-10) are outlined, requiring CE marking for all smoke extraction methods.
Sample calculations for roof and vertical facade installations determine maximum aerodynamics based on stroke and opening angle, performed using D+H myCalc software.
- Profile system: xxx
- Series: xx
- Installation area: monopitch roof
- Angle of installation: 9°
- Casement dimensions: Width 1200 mm, Height 1600 mm
- Casement clearance: 80 mm
- Unit height: 3280 mm
- Clearance dimensions: Width 2 × 30 mm, Height 2 × 30 mm
- Opening type: Dual single flap 0-15°, outward
- Fill: Glass, 8/12/8 mm
- Drive: Rack and pinion, stroke 1000 mm
- Required aerodynamic free opening area: ≥ 3.00 m²
1. Geometric Opening Area Calculation:
- Formula: Av = (WCM – 2 ∆ w) × (HFRZK – 2 ∆ h)
- Calculation: Av = (1200 – 60) × (3280 – 60) = 3.67 m²
2. Width/Height Ratio:
- Formula: W/H = clear width (RLB): clear height (RLH)
- Calculation: W/H = 1140: 3220 = 0.35
3. Opening Angle:
- Determined using a graph based on stroke and height.
- Example: 37° at a vent height of 1600 mm and stroke of 1000 mm.
4. Coefficient of Discharge (Cv):
- Determined from width-height ratio and opening angle.
- Example: Cv = 0.46 for W/H ratio of 0.35 and opening angle of 35°.
5. Aerodynamic Free Opening Area:
- Formula: Aa = Av × Cv
- Calculation: Aa = 3.67 m² × 0.46 = 1.68 m²/NSHEV
6. Number of Windows Required:
- Formula: Aa target total : Aa = number of windows
- Calculation: 3.00 m²: 1.68 m² = 2
- Result: Two dual single flaps required.
- Objective: Calculate total aerodynamic smoke extraction cross section and number of windows.
- Known Data: Similar to monopitch roof with variations in installation area and opening type.
- Geometric Opening Area: Av = 1.76 m²
- Width/Height Ratio: W/H = 0.74
- Coefficient of Discharge (Cv0): 0.40
- Aerodynamic Free Opening Area: Aa = 0.70 m²/NSHEV
- Number of Windows Required: 3.50 m²: 0.70 m² = 5
- Result: Five windows required.
- Overview of installation options for D+H drives in vertical facades and skylights.
- Various drive types: chain, linear, and lock drives.
- Installation positions for different window types and opening directions.
- Bracket sets for different installation types and profile systems.
- Definitions related to smoke and heat exhaust systems, including aerodynamic free area, coefficient of discharge, and natural smoke and heat exhaust ventilator (NSHEV).
This document provides a detailed list of symbols and abbreviations used in the context of natural smoke and heat exhaust ventilators (NSHEV) as per the EN 12101-2 standard. It includes parameters, descriptions, and units of measurement relevant to the design and functionality of these systems.
- Specifications: The document outlines various parameters such as aerodynamic free area (Aa), geometric opening area (Av), and casement dimensions (WCM, HCM) measured in square meters and millimeters respectively. It also includes classifications for heat resistance, reaction to fire, and reliability.
- Procedures: Functional test classifications are provided, indicating the number of cycles for ventilation function (Le 10,000) and reliability (Re 1000).
- Standards and Classifications: The document specifies classifications for snow load (SL), wind load (WL), and temperature (T), ensuring compliance with safety and performance standards.
- Components and Mechanisms: Descriptions of various components such as chain drive (KA), rack and pinion drive (ZA), and locking motor (VH) are included, highlighting their roles in the operation of NSHEVs.
The document provides contact details for D+H Mechatronic AG, the company responsible for the publication, including their address, phone number, fax, and email.
Catalog excerpts
D+H EURO-SHEV: Smoke ventilation according to DIN EN 12101-2
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INTRODUCTION Since September 2006, all natural smoke and heat exhaust ventilators (NSHEVs) must provide usability certification in accordance with DIN EN 12101-2 or be individually authorised by means of approval. Only tested complete solutions (consisting of a window or dome light and drive) may be used that in the case of standard units have a CE mark and in the case of custom-designed facades and roof designs have individual approval. DIN EN 12101-2 is a mandated and harmonised standard which falls into the field of application of the Construction Products Directive and soon of the Construction...
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A Useful information about EN 12101 9 1 The EN 12101 series of standards using the example of Germany 10 2 The path to the CE marking and to the EC certificate of conformity for NSHEVs 17 4 Other product standards for smoke and heat exhaust systems 32 1 Sample calculation in the roof: specification of the stroke 33 2 Sample calculation in the vertical facade: specification of the stroke 36 C Information about D+H drives and brackets 39 1 Explanation of terms in accordance with EN 12101-2 45
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THE D+H MECHATRONIC AG COMPANY D+H Mechatronic AG was one of the first companies to develop natural, electric motor-driven smoke and heat exhaust ventilation (SHEV). Later, D+H became the first producer of electric SHEV systems to be certified in accordance with DIN EN ISO 9001 and launched the first electric SHEV system with VdS approval. D+H therefore exerted its influence as a pioneer in the field of smoke and heat exhaust ventilation and today has more experience and expertise than any other supplier. With a dense network of D+H service and sales partners – 30 in Germany and over 100 globally...
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A USEFUL INFORMATION ABOUT EN 12101 The objective of the European series of standards EN 12101 is to ensure free trade in goods whilst at the same time defining minimum product requirements and standardising test methods in Europe. SHEV products may only be marked with a CE marking once: • the product has passed a test at a notified test centre and • an inspection of the manufacturer’s factory has been carried out. Notified test centres in Germany are, for example: • VdS Schadenverhütung GmbH (German loss prevention council), Cologne • aterialprüfungsamt Nordrhein-Westfalen (MPA NRW) (material...
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1 THE EN 12101 SERIES OF STANDARDS USING THE EXAMPLE OF GERMANY The EN 12101 series of standards currently consists of ten sections, which have been adopted in German standards (EN 12101-xx) or published as technical reports (TR 12101-xx). PREVIOUS PREVIOUS CONTENTS FUTURE DIN STANDARD VDS GUIDELINE DIN STANDARD Smoke and heat control systems DIN EN 12101-1 Part 1: Specification for smoke barriers DIN 18232-3 * Structural fire protection in industrial buildings DIN EN 12101-2 Smoke and heat exhaust ventilation systems Smoke vents, tests Smoke and heat control systems DIN...
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EN 12101-2 applies to natural smoke and heat exhaust ventilators (NSHEVs). This standard specifies the requirements and test methods for NSHEVs, both for horizontally (roof exhaust systems) and vertically (facade exhaust systems) installed NSHEVs. DIN EN 12101-2 supersedes the German predecessor standard DIN 18232-3. Current version of EN 12101-2
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1.1.1. FACADE EXHAUST SYSTEM (VERTICAL FACADE) An NSHEV consisting of electromotive drive and the SHEV opening in the facade can, for example, be installed with a chain drive or rack and pinion drive: Chain drive SHEV opening Rack and pinion drive SHEV opening A wind sensitive control system is mandatory! 1.1.2. ROOF EXHAUST SYSTEM An NSHEV consisting of electromotive drive and the SHEV opening in the roof can, for example, be installed with a rack and pinion drive: Rack and pinion drive SHEV opening NSHEVs in the roof are subject to special installation conditions. These conditions are specified...
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INSTALLATION CONDITIONS FOR ROOF NSHEVS We differentiate in general between two types of NSHEV in the roof: 1. Single flaps with or without wind deflectors 2. Dual single flaps with wind deflectors NSHEVs as a single flap in the roof can be installed with and without wind deflectors and are subject to special installation conditions. Single flaps can only be used in the roofs depicted. Minimum clearances are defined to ensure that the NSHEV functions correctly. If these distances are not observed, the NSHEV no longer achieves the specified aerodynamic efficiency. 1.2.1. SINGLE FLAP WITHOUT WIND...
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1.2.3. SINGLE FLAP AS TOP-HUNG VENT WITH THREE-SIDED WIND DEFLECTORS At an installation orientation of [α] 2° to 50° Distance from NSHEV to ridge [Dimension A]: Distance from NSHEV to eave [Dimension tA]: Roof ridge Wind deflectors [WD] NSHEV Please note that the opening angles of the top-hung window depend on the geometry and installation orientation! 1.2.4. DUAL SINGLE FLAP WHEN INSTALLED AT AN ANGLE OF 0-30° The dual single flap can be used in monopitch, barrel and gable roofs. The wind deflectors, which are always required, protect the NSHEV from side wind influences so that no wind sensitive...
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PERFORMANCE CLASSES In addition to some functional properties such as the opening time ≤ 60 s and requirements in accordance with EN 12101-2 para. 4, the aerodynamic free area (see EN 12101-2, para. 6) and specific performance classes in accordance with EN 12101-2, para. 7 are also tested. These performance classes are defined by the NSHEV manufacturer. The manufacturer may choose between predefined values and the undefined class A. This chosen value is then tested by the notified test centre. The following list provides an overview of the performance classes that can be selected and the values...
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1.4. DETERMINING THE AERODYNAMIC FREE OPENING AREA IN ACCORDANCE WITH EN 12101- 2, ANNEX B EN 12101-2 requires the specification of the aerodynamic free opening area for smoke extraction from the building for each NSHEV in the roof or facade. The aerodynamic free area Aa is calculated by multiplying the clear geometric area of the NSHEV with the coefficient of discharge. The coefficient of discharge Cv (with side wind influence) or Cv0 (without side wind influence) is determined by the notified test centre while testing the NSHEV. SUMMARY: BASIC REQUIREMENTS FOR D+H EURO-SHEVS In summary, the...
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