DIN EN 126-2012 Multifunctional controls for gas burning appliances German version EN 126 2012《燃气设备用多功能控制装置》.pdf

1、June 2012Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23

2、.060.40!$|ty“1898186www.din.deDDIN EN 126Multifunctional controls for gas burning appliancesEnglish translation of DIN EN 126:2012-06Mehrfachstellgerte fr GasgerteEnglische bersetzung von DIN EN 126:2012-06Equipements multifonctionnels pour les appareils gazTraduction anglaise de DIN EN 126:2012-06S

3、upersedesDIN EN 126:2004-07 andDIN EN 126 Corrigendum 1:2008-09www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 28 pages06.12 DIN EN 126:2012-06 2 A comma is used as the decimal marker. Start of application The start of application of th

4、is standard is 1 June 2012. National foreword This standard includes safety requirements in Clauses 6 and 7. This standard has been prepared by Technical Committee CEN/TC 58 “Safety and control devices for burners and appliances burning gaseous or liquid fuels” (Secretariat: BSI, United Kingdom). Th

5、e responsible German body involved in its preparation was the Normenausschuss Heiz- und Raumluft-technik (Heating and Ventilation Technology Standards Committee), Working Committee NA 041-03-16 AA Mechanische Sicherheits- und Regeleinrichtungen fr wrmeerzeugende Gerte und Anlagen (SpA CEN/ TC 58/WG

6、13, ISO/TC 161/WG 4). Appliances as in this document comply with the essential requirements regarding safety, utility and effective-ness laid down in EU Directive 2009/142/EG relating to appliances burning gaseous fuels. In Germany this Directive is transposed into national law by means of the Siebt

7、e Verordnung zum Produktsicherheitsgesetz (Gasverbrauchseinrichtungsverordnung - 7. GPSGV) (Seventh Ordinance to the Equipment and Product Safety Act - Gas Appliances Ordinance). The Neunte Verordnung zum GPSGV 9. GPSGV) (Ninth Ordinance to the Equipment and Product Safety Act - Machinery Ordinance)

8、 implements Directive 2006/42/EC (Machinery Directive) into national law. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 262 DIN ISO 262 Amendments This standard differs from DIN EN 126:2004-07 and DIN EN 126 Corrigendum 1:2008-09 as foll

9、ows: a) the standard has been aligned with EN 13611:2007+A2:2011; b) the maximum inlet pressure has been increased to 50 kPa (500 mbar); c) it is no longer necessary for at least one of the control functions to be a shut-off function but combinations of electronic controls only are excluded; d) the

10、Application Control Function has been introduced in the scope (see 3.103, 6.103); e) the control standards are referred to as shown in Figure 1 in total instead of referencing these standards clause by clause. Previous editions DIN 3393-1: 1973-01 DIN EN 126: 1995-08, 2004-07 DIN EN 126 Corrigendum

11、1: 2008-09 DIN EN 126:2012-06 3 National Annex NA (informative) Bibliography DIN ISO 262, ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts DIN EN 126:2012-06 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 126 March 2012 ICS 2

12、3.060.40 Supersedes EN 126:2004English Version Multifunctional controls for gas burning appliances Equipements multifonctionnels pour les appareils gaz Mehrfachstellgerte fr Gasgerte This European Standard was approved by CEN on 30 December 2011. CEN members are bound to comply with the CEN/CENELEC

13、Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to

14、 any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the officia

15、l versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovak

16、ia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 126:2012: EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT E

17、UROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGEN 126:2012 (E) 2 Contents Page Foreword 4Introduction .51 Scope 62 Normative references 63 Terms and definitions .74 Classification 74.1 Classes of control 74.2 Groups of control.74.3 Classes of control functions 75 Units of measurement and test

18、conditions .86 Construction requirements .86.101 General 86.102 MFC based on combination of controls 86.102.1 General 86.102.2 Interaction between Controls .96.102.3 Alternative gas connections .96.103 MFC based on Application Control Functions 106.103.1 Assessment for ACFs in gas appliances . 106.1

19、03.2 Gas shut-off control function 107 Performance 107.101 General . 107.102 External leak-tightness of MFC . 107.103 Thermostat function . 107.104 Internal leak tightness of MFC . 108 EMC/Electrical requirements . 109 Marking, installation and operating instructions 119.1 Marking 119.2 Installation

20、 and operating instructions 119.3 Warning notice 11Annex A (informative) Gas connections in common use in the various countries . 12Annex B (informative) Leak-tightness test volumetric method 13Annex C (informative) Leak-tightness test pressure loss method . 14Annex D (normative) Conversion of press

21、ure loss into leakage rate . 15Annex E (normative) Electrical/electronic component fault modes . 16Annex F (normative) Additional requirements for safety accessories and pressure accessories as defined in EC Directive 97/23/EC . 17Annex G (normative) Materials for pressurized parts 18Annex H (inform

22、ative) Additional materials for pressurized parts 19Annex I (normative) Requirements for controls used in DC supplied gas burners and gas burning appliances . 20Annex AA (normative) Automatic water operated gas valve . 21AA.1 Construction requirements 21DIN EN 126:2012-06EN 126:2012 (E) 3 AA.2 Perfo

23、rmance requirements . 21AA.2.1 Sealing force 21AA.2.2 Endurance 21AA.2.3 Test of automatic water-operated gas valves. 21AA.2.4 Flow rate and leak-tightness after endurance 21Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2009/142/EC

24、relating to appliances burning gaseous fuels 22Bibliography 24Figures Figure 1 Standards house . 5Tables Table 1 External leakage rate 10Table ZA Correspondence between this European Standard and Directive 2009/142/EC relating to appliances burning gaseous fuels (1 of 2) . 22Table ZA Correspondence

25、between this European Standard and Directive 2009/142/EC relating to appliances burning gaseous fuels (2 of 2) . 23DIN EN 126:2012-06EN 126:2012 (E) 4 Foreword This document (EN 126:2012) has been prepared by Technical Committee CEN/TC 58 “Safety and control devices for burners and appliances burnin

26、g gaseous or liquid fuels”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2012, and conflicting national standards shall be withdrawn at the la

27、test by September 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 126:2004. This document has been p

28、repared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This document refers to clause

29、s of EN 13611:2007+A2:2011 or adapts it by stating “with the following modification“, “with the following addition“, “is replaced by the following“ or “is not applicable“ in the corresponding clause. This Document adds clauses or sub-clauses to the structure of EN 13611:2007+A2:2011 which are partic

30、ular to this standard, i.e. sub-clauses or annexes which are additional to those in EN 13611:2007+A2:2011 are numbered starting from 101 or are designated as Annex AA, BB, CC etc. It should be noted that these clauses and sub-clauses are not indicated as an addition. It should be noted that the foll

31、owing significant technical changes have been made to the document since the previous edition: a) alignment with EN 13611:2007+A2:2011; b) the maximum inlet pressure is increased to 50 kPa (500 mbar); c) it is no longer necessary for at least one of the control functions to be a shut-off function bu

32、t combinations of electronic controls only are excluded; d) introduction of Application Control Function in the scope (see 3.103, 6.103); e) referencing the control standards as shown in Figure 1 in total, instead of referencing these standards clause by clause. According to the CEN/CENELEC Internal

33、 Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour

34、g, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 126:2012-06EN 126:2012 (E) 5 Introduction The general requirements for controls are given in EN 13611:2007+A2:2011 and methods for classification and assess

35、ment for new controls and control functions are given in EN 14459:2007, Clauses 1 up to and including 7.13 (see Figure 1). The requirements for controls are given in the specific control standard EN 126 (see Figure 1) specifies multifunctional controls with two or more controls and Application Contr

36、ol Functions, e.g. the Gas Shut-off Control Function, being inherently multifunctional controls, see 6.103. Key a) This European Standard specifies automatic water operated gas valves in Annex AA b) EN 12067-1 (Gas/air ratio controls) and EN 12078 (Zero governors) were merged into the new EN 88-1(pr

37、essure regulators). Figure 1 Standards house Each control integrated in the MFC shall meet the applicable requirements of the relevant control standard(s). In addition, this standard covers requirements for the safety related interactions between the different devices. EN 13611 + EN 14459 Generic pa

38、rt EN 88-1b)EN125 EN161 EN257 EN298 EN 1106EN 1643EN 12067-2EN 88-2EN 126a)EN 1854DIN EN 126:2012-06EN 126:2012 (E) 6 1 Scope This European Standard specifies the safety, construction and performance requirements for multifunctional controls intended for use with gas burners, gas appliances and simi

39、lar use, hereafter referred to as ”MFC”. This European Standard is applicable to MFC with declared maximum inlet pressures up to and including 50 kPa (500 mbar) of nominal connection sizes up to and including DN 150 for use with one or more fuel gases in accordance with EN 437. MFC consist of two or

40、 more functions, at least one of which is a mechanical control, as specified in the relevant control standards (see Figure 1). MFC consisting only of electronics are not covered by EN 126 (an example is a combination of functions according to EN 298 and EN 1643). 2 Normative references The following

41、 documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 26:1997, Gas-fire

42、d instantaneous water heaters for the production of domestic hot water, fitted with atmospheric burners EN 88-1, Pressure regulators and associated safety devices for gas appliances Part 1: Pressure regulators for inlet pressures up to and including 50 kPa EN 125, Flame supervision devices for gas b

43、urning appliances Thermoelectric flame supervision devices EN 161, Automatic shut-off valves for gas burners and gas appliances EN 257, Mechanical thermostats for gas-burning appliances EN 298, Automatic gas burner control systems for gas burners and gas burning appliances with or without fans EN 43

44、7, Test gases Test pressures Appliance categories EN 1106, Manually operated taps for gas burning appliances EN 1643, Valve proving systems for automatic shut-off valves for gas burners and gas appliances EN 1854, Pressure sensing devices for gas burners and gas burning appliances EN 12067-2, Gas/ai

45、r ratio controls for gas burners and gas burning appliances Part 2: Electronic types EN 13611:2007+A2:2011, Safety and control devices for gas burners and gas-burning appliances General requirements EN 14459:2007, Control functions in electronic systems for gas burners and gas burning appliances Met

46、hods for classification and assessment ISO 262, ISO general purpose metric screw threads - Selected sizes for screws, bolts and nuts DIN EN 126:2012-06EN 126:2012 (E) 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13611:2007+A2:2011and the followin

47、g apply. 3.101 control device which provides functionality as described in the specific control standard 3.102 multifunctional control MFC combination of two or more controls and/or Application Control Function(s) whereby the functional parts cannot operate if separated 3.103 application control fun

48、ction ACF function to protect against harm(s) originating from a specific hazard by providing safe operation of gas burners and gas burning appliances Note 1 to entry: The assembly to provide this function may consist of a combination of controls and/or multifunctional control(s) (e.g. actuators, sensors and control electronics). 3.104 gas shut-off function Appliance Control Function which switches the gas flow