EN 16475-3:2016+A1:2018

Chimneys - Accessories - Part 3: Draught regulators, standstill opening devices and combined secondary air devices - Requirements and test methods

This European standard specifies the requirements and test methods for draught regulators and standstill opening devices that are used as components, carrying flue gases, in order to limit the draught in chimneys and provide secondary air to the chimney.
Draught regulators and standstill opening devices for positive pressure chimneys are not covered by this standard.
It also specifies the requirements for marking, manufacturers’ instruction, product information and evaluation of conformity.

Abgasanlagen - Zubehörteile - Teil 3: Selbsttätig arbeitende, zwangsgesteuerte und kombinierte Nebenluftvorrichtungen - Anforderungen und Prüfverfahren

Diese Europäische Norm legt die Anforderungen und Prüfverfahren für selbständig arbeitende und zwangsgesteuerte Nebenluftvorrichtungen fest, die zum Transport von Abgasen verwendet werden, um den Unterdruck  in Abgasanlagen zu begrenzen und die Abgasanlage mit Nebenluft zu versorgen.
Selbständig arbeitende und zwangsgesteuerte Nebenluftvorrichtungen für Überdruckabgasanlagen werden von dieser Norm nicht abgedeckt.
Sie legt außerdem die Anforderungen an die Kennzeichnung, Herstelleranweisungen, Produktinformationen und Bewertung und Überprüfung der Leistungsbeständigkeit fest.

Conduits de fumée - Accessoires - Partie 3: Régulateurs de tirage, dispositifs d'ouverture pour période d'arrêt et dispositifs combinés d'air secondaire - Exigences et méthodes d'essai

La présente Norme européenne spécifie les exigences et les méthodes d'essai s'appliquant aux régulateurs de tirage et aux dispositifs d’ouverture pour période d’arrêt, utilisés comme composants, transportant les fumées, afin de limiter le tirage dans les conduits et de fournir de l'air secondaire.
Les régulateurs de tirage et les dispositifs d’ouverture pour période d’arrêt destinés aux conduits de fumée en pression positive n'entrent pas dans le domaine d'application de la présente norme.
La présente norme spécifie également les exigences en matière de marquage, d'instructions du fabricant, d'informations produit et d'évaluation de la conformité.

Dimovodne naprave - Oprema - 3. del: Regulatorji vleka, lopute z motornim pogonom in kombinirane lopute za sekundarni zrak - Zahteve in preskusne metode

Ta evropski standard določa zahteve in preskusne metode za regulatorje vleka ter lopute z motornim pogonom, ki se uporabljajo kot sestavni deli za odvajanje dimnih plinov, da se omeji vlek v dimovodnih napravah in zagotovi pretok sekundarnega zraka v dimovodno napravo.  Regulatorji vleka in lopute z motornim pogonom pri dimnikih s pozitivnim tlakom niso zajeti v tem standardu. Določa tudi zahteve za označevanje, navodila za proizvajalca, informacije o izdelku in vrednotenje skladnosti.

General Information

• Status: Published
• Publication Date: 18-Dec-2018
• ICS: 91.060.40 - Chimneys, shafts, ducts
• Technical Committee: CEN/TC 166 - Chimneys
• Drafting Committee: CEN/TC 166/WG 1 - General requirements
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 15-Nov-2022
• Completion Date: 14-Apr-2025
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/105 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on chimneys, flues and specific products
• Ref Project: SIST EN 16475-3:2016+A1:2019 - Chimneys - Accessories - Part 3: Draught regulators, standstill opening devices and combined secondary air devices - Requirements and test methods

Relations

• Merged From: EN 16475-3:2016 - Chimneys - Accessories - Part 3: Draught regulators, standstill opening devices and combined secondary air devices - Requirements and test methods
• Effective Date: 18-Jan-2023
• Merged From: EN 16475-3:2016/prA1 - Chimneys - Accessories - Part 3: Draught regulators, standstill opening devices and combined secondary air devices - Requirements and test methods
• Effective Date: 24-Oct-2018

Overview

EN 16475-3:2016+A1:2018 is a CEN European standard for chimney accessories that sets out requirements and test methods for draught regulators, standstill opening devices and combined secondary air devices used as components in chimneys carrying flue gases. The standard defines performance, safety and conformity criteria - including marking, manufacturer’s instructions and product information - to ensure reliable chimney operation.
Note: Positive-pressure chimneys are excluded from this part of the standard.

Key topics and requirements

• Scope and definitions: Terminology and the range of chimney accessory types covered (draught regulators, standstill opening devices, combined secondary air devices).
• Product characteristics:
  • Dimensions and tolerances, mechanical resistance and stability.
  • Thermal performance: reaction to fire and fire resistance when separating internal and external environments.
  • Hygiene, health & environment: gas tightness, condensate resistance, corrosion resistance and control of dangerous substances.
  • Electrical requirements for motor-driven devices and limit switches where applicable.
  • Durability requirements, especially for standstill opening devices and moving parts.
  • Draught regulator performance: assignation to draught regulator groups and adjustability/function tests.
• Testing and assessment methods:
  • Thermal testing assemblies and procedures.
  • Gas tightness tests and acceptance criteria.
  • Durability tests and sampling rules for type testing.
• Factory production control (FPC) and AVCP: requirements for production control, type testing, sampling, inspections and ongoing conformity verification.
• Marking, labelling and product information: required manufacturer declarations, instructions and labelling for safe selection and installation.

Applications and who uses it

• Manufacturers of chimney components: design, type testing, production control and CE marking.
• Testing laboratories and conformity assessment bodies: perform AVCP, type tests and durability assessments.
• Chimney designers, installers and HVAC contractors: select appropriate draught regulators and secondary air devices to meet performance, fire safety and durability needs.
• Regulators and specifiers: reference in procurement and building regulations for safe flue gas handling. Practical benefits include improved safety, predictable draught control, reduced condensate/corrosion issues and clearer product information for installation and maintenance.

Related standards

• Other parts of the EN 16475 series (chimney accessories) and national chimney standards.
• The standard references conformity frameworks such as Regulation (EU) No. 305/2011 (Construction Products Regulation) for assessment and CE marking procedures.

Keywords: EN 16475-3:2016+A1:2018, draught regulators, standstill opening devices, chimney accessories, test methods, gas tightness, thermal performance, factory production control, AVCP, CEN.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dimovodne naprave - Oprema - 3. del: Regulatorji vleka, lopute z motornim pogonom in kombinirane lopute za sekundarni zrak - Zahteve in preskusne metodeAbgasanlagen - Zubehörteile - Teil 3: Selbsttätig arbeitende, zwangsgesteuerte und kombinierte Nebenluftvorrichtungen - Anforderungen und PrüfverfahrenConduits de fumée - Accessoires - Partie 3: Régulateurs de tirage, dispositifs d'ouverture pour période d'arrêt et dispositifs combinés d'air secondaire - Exigences et méthodes d'essaiChimneys - Accessories - Part 3: Draught regulators, standstill opening devices and combined secondary air devices - Requirements and test methods91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:Ta slovenski standard je istoveten z:EN 16475-3:2016+A1:2018SIST EN 16475-3:2016+A1:2019en,fr,de01-februar-2019SIST EN 16475-3:2016+A1:2019SLOVENSKI
STANDARDSIST EN 16475-3:20161DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16475-3:2016+A1
December
t r s z ICS
{ sä r x rä v r Supersedes EN
s x v y wæ uã t r s xEnglish Version
Chimneys æ Accessories æ Part
uã Draught regulatorsá standstill opening devices and combined secondary air devices æ Requirements and test methods Conduits de fumée æ Accessoires æ Partie
uã Régulateurs de tirageá dispositifs d 5ouverture pour période d 5arrêt et dispositifs combinés d 5air secondaire æ Exigences et méthodes d 5essai
Abgasanlagen æ Zubehörteile æ Teil
uã Selbsttätig arbeitendeá zwangsgesteuerte und kombinierte Nebenluftvorrichtungen æ Anforderungen und Prüfverfahren This European Standard was approved by CEN on
t y November
t r s w and includes Amendment
s approved by CEN on
t y June
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x v y wæ uã t r s x ªA sã t r s z ESIST EN 16475-3:2016+A1:2019

Choice of sizes for type test and sampling . 29 A.1 Thermal testing . 29 A.2 Gas tightness . 29 A.3 Condensate resistance . 29 A.4 Determination of the group . 29 A.5 Adjustability . 29 A.6 Durability of standstill opening device . 29 A.7 Samples . 29 A.8 Factory production control system . 29 A.9 Further type testing . 29 Annex B (informative)
Sampling for factory productions control . 30 B.1 Sampling plans . 30 B.1.1 General . 30 B.1.2 Acceptable quality level (AQL) . 30 B.1.3 The inspection level . 30 B.1.4 Normal, tightened or reduce inspection . 30 B.1.5 Single, double, multiple or sequential sampling . 30 B.1.6 Batch quantity . 30 B.2 Inspection levels and procedures . 30 B.2.1 Incoming material . 30 SIST EN 16475-3:2016+A1:2019

Factory production control . 32 C.1 Introduction . 32 C.2 Materials, including coatings . 32 C.3 Seals and sealants . 32 C.4 Manufacturing checks . 32 C.4.1 Dimensions . 32 C.4.2 Other checks . 32 Annex D (informative)
Recommended range of application . 33 D.1 Tables for the selection of the draught regulator group Height against diameter . 33 Annex E (informative)
Examples of products . 35 E.1 Without standstill opening device . 35 Annex ZA (informative)
Relationship of this European Standard with Regulation (EU) No.305/2011 . 37 ZA.1 Scope and relevant characteristics . 37 ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 38 ZA.3 Assignment of AVCP tasks . 38 Bibliography . 41
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp" 3.1 draught regulator device with a hinged flap in a flue opening to allow entry of secondary air into the flue to regulate the draught 3.2 standstill opening device device which is opened motorised to allow air to enter the flue during the standstill period of the heating appliance 3.3 combined secondary air device combination of a draught regulator and standstill opening device SIST EN 16475-3:2016+A1:2019

a2 2 1 400 120 000 2 200 30 000 3 140 11 400 4 97 5 000 5 74 2 800 6 48 1 260 SIST EN 16475-3:2016+A1:2019

Key Numbers 1 to 6 group number assigned to draught regulators X deviation from the setting point in Pa Y1 secondary air volume flow in m3/h Y2 secondary air mass flow in g/s Figure 1 — Limit curves of the determination for draught regulator group 4.6.2 Adjustability and function of the draught regulator When tested in accordance with 5.3.1 the adjustability of the settings shall be in maximum 5 Pa steps. When tested in accordance with 5.3.1 the second value of the volume flow may be a maximum of 80 % above the first value. 4.6.3 Durability of the standstill opening device When tested in accordance with 5.1.4 the standstill opening devices shall continue to open and close after at least 50 000 switching operations. 4.7 Electrical requirements 4.7.1 Motor The motor of the standstill opening device shall be in accordance with EN 60730-2-14. 4.7.2 Limit switches Limit switches shall be in accordance with EN 61058-1. SIST EN 16475-3:2016+A1:2019

Key 1 hot gas generator 2 hot gas connecting pipe 3 draught regulator Figure 2 — Test arrangement for the measurement of distance to combustible material 5.1.2 Test Assembly 5.1.2.1 General The test assembly shall be in accordance with EN 13216-1. The test sample is the draught regulator, and if appropriate the standstill opening device, fitted into the test chimney having a thermal resistance of at least 0,22 m2.K/W with its centre line (300 ± 5) mm above the floor of Zone B, and shall be installed according to the manufacturer’s instructions without closing the floor penetrations (see Figure 2). SIST EN 16475-3:2016+A1:2019

Hot gas velocity at test temperature in m/s Temperature class T080 T100 T120 T140 T160 T200 T250 T300 T400 T450 T600 Sootfire Test temperature in °C Pressure class D in
mm 100 120 150 170 190 250 300 350 500 550 700 1000 Negative pressure 100 1,67 1,76 1,90 2,00 2,08 2,36 2,60 2,84 3,56 3,81 4,55 5,09 120 1,68 1,77 1,91 2,00 2,10 2,38 2,62 2,86 3,59 3,83 4,58 5,58 160 1,71 1,80 1,94 2,04 2,13 2,42 2,66 2,91 3,65 3,90 4,66 5,56 200 1,74 1,84 1,99 2,08 2,18 2,48 2,72 2,97 3,73 3,98 4,76 5,41 NOTE The table refers to a maximum diameter of 200 mm. Hot gas velocities for other sizes are possible by calculating according to EN 13384–1. Maintain the hot gas temperature at 50+=%=of=the=test=temperature,=and=the=flow=rate=at=100+=%=of=the=value=but=not=less=than=0,2=m/s=given=in=Table=2,=until=equilibrium=or=6=h.=Equilibrium=is=deemed=to=exist=when=the=rate=of=rise=of=the=temperature=at=the=hottest=point=on=the=test=assembly=or=structure=does=not=exceed=1=K=per=30=min=up=to=hot=gas=temperatures=of=250=°C=and=2=K=per=30=min=for=higher=hot=gas=temperatures.=During=the=test=phase,=the=ambient=temperature=shall=not=vary=by=more=than=5=K.=Record=the=temperatures=after=firing=the=test=assembly=until=the=temperatures=have=reached=their=maximum.=Check=the=free=movement=of=the=draught=regulator=flap.=SIST EN 16475-3:2016+A1:2019

Key 1 fan 2 flow volume meter 3 pressure gauge 4 draught regulator attachment (possibly adaptor) 5 measurement section Figure 3 — Example of a measurement facility for the determination of air volume flow rate and for gas tightness 5.2.2 Test Procedure Mount the draught regulator in the test assembly of Figure 3 according to the manufacturer’s instructions. Fix the draught regulator in the closed position. Draw air from the tube until there is an underpressure of (10 ± 1) Pa. Record the flow rate. Measure the underpressure to an accuracy of ± 1 Pa. Measure the volume flow to an accuracy of 5 %. Repeat for two other samples of the draught regulator of this size. Repeat for each size of draught regulator. 5.2.3 Test results Record the volume flow for each test. Calculate the average volume flow for each size of draught regulator. 5.3 Additional criteria for chimney operation 5.3.1 Adjustability of the draught regulator 5.3.1.1 Test Assembly Use the test assembly of 5.2.1. 5.3.1.2 Test procedure Adjust the draught regulator to the lowest declared setting. Draw air from the tube until the draught in the tube causes the draught regulator to open. Record the difference in the draught from the setting. Repeat this procedure for draught settings on the draught regulator of 5 Pa steps. SIST EN 16475-3:2016+A1:2019

Requirement
Assessment method
No. of samples
Compliance criteria
Resistance to fire 4.4.2 5.1 1 4.4.2 Thermal shock resistance 4.4.2.2 4.4.2.3 5.1.3.2 5.1.3.3 1 5.1.3.2 5.1.3.3 Durability against corrosion 4.5.3 4.5.3 1 4.5.3 Condensate resistance 4.5.2 4.5.2 1 4.5.2 Dangerous substances 4.5.4 4.5.4 1 4.5.4 6.2.2.2 Sampling for type testing The size of products to be tes
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