EN 15502-2-1-2012 en Gas-fired central heating boilers - Part 2-1 Specific standard for type C appliances and type B2 B3 and B5 appliances of a nominal heat input not exceeding 1 0.pdf

1、BSI Standards PublicationGas-fired central heatingboilersPart 2-1: Specific standard for type Cappliances and type B2, B3 and B5appliances of a nominal heat input notexceeding 1 000 kWBS EN 15502-2-1:2012Incorporating corrigendum February 2015BS EN 15502-2-1:2012 BRITISH STANDARDNational forewordThi

2、s British Standard is the UK implementation of EN 15502-2-1:2012. Together with BS EN 15502-1:2012, it supersedes BS EN 483:1999+A4:2007 and BS EN 15420:2010 which will be withdrawn on 31 October 2015. Together with BS EN 15502-1:2012 and BS EN 15502-2-2:2014, it supersedes BS EN 297:1994 (including

3、 amendments), BS EN 677:1998, BS EN 15417:2006 and BS EN 625:1996, which will be withdrawn on 31 July 2017. National Annex NA reproduces Annex V from BS EN 15502-2-2:2014. This annex gives detailed information on the state of supersessions in the EN 15502 series.The UK participation in its preparati

4、on was entrusted to Technical Committee GSE/29, Gas-fired central heating boilers (domestic and non-domestic) and domestic gas-fired water heaters.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the ne

5、cessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 89561 6ICS 27.060.30; 91.140.10Compliance with a British Standard cannot confer immunity from legal obligations.This Brit

6、ish Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2012.Amendments/corrigenda issued since publicationDate Text affected28 February 2015 Supersession information in National foreword updated and National Annex NA insertedBS EN 15502-2-1:2012E

7、UROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15502-2-1 October 2012 ICS 27.060.30; 91.140.10 English Version Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW Chaudires de chau

8、ffage utilisant les combustibles gazeux - Partie 2-1: Norme spcifique pour les appareils de type C et les appareils de types B2, B3 et B5 dont le dbit calorifique nominal est infrieur ou gal 1 000 kW Heizkessel fr gasfrmige Brennstoffe - Teil 2-1: Heizkessel der Bauart C und Heizkessel der Bauarten

9、B2, B3 und B5 mit einer Nennwrmebelastung nicht grer als 1 000 kW This European Standard was approved by CEN on 18 August 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard

10、 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 any CEN member. This European Standard exists in three official versions (English, French, German). A version in any o

11、ther 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 official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republi

12、c, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN CO

13、MMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG 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 15502-2-1:2012: E2 Contents Page Fo

14、reword . . 4Introduction . . 61 Scope . 82 Normative references . 93 Terms, definitions and symbols 103.1 Terms and definitions . .103.2 Symbols . 124 Classification . .125 Construction . 125.1 General . .125.2 Conversion to different gases . 125.3 Materials . .125.4 Method of construction. .145.5 B

15、urners . .185.6 Pressure test points . 185.7 Requirements for the application of control and safety devices . .185.101 Additional requirements for modular boilers .206 Electrical safety . .207 Controls . 208 Operational requirements . .208.1 General . .208.2 Soundness . .228.3 Hydraulic resistance .

16、 .268.4 Heat inputs and heat output . .268.5 Limiting temperatures . .268.6 Ignition, cross lighting, flame stability 278.7 Reduction of the gas pressure .318.8 Defective closure of the gas valve immediately upstream of the main burner . 318.9 Pre-purge . 318.10 Functioning of a permanent ignition b

17、urner when the fan stops during the standby time348.11 Adjustment, control and safety devices .348.12 Carbon monoxide . 388.13 NOx. 408.14 Special provisions for boilers intended to be installed in a partially protected place . .418.15 Formation of condensate . .418.16 Temperature of combustion prod

18、ucts 418.101 Mechanical resistance and stability of ducts, terminal and fitting pieces . 428.102 Requirements for plastic in the combustion product evacuation ducts, terminals and fitting pieces for boilers . 448.103 Requirements for elastomeric seals and elastomeric sealants in the combustion produ

19、ct evacuation ducts, terminals and fitting pieces 509 Useful efficiencies . .5410 Electric auxiliary energy . .5511 Risk assessment . .5512 Marking and instructions . 5512.1 Boiler marking . .5512.2 Instructions . 55BS EN 15502-2-1:2012 EN 15502-2-1:2012 (E) 3 12.3 Presentation . .5812.4 Supplementa

20、ry marking and instructions in the case of boilers to be installed in partially protected places . .58101 Figures . 58102 Listing of tables and numbers . .70103 Annexes . 71Annex AA (informative) Standards replaced by this standard in combination with part 1 . .72Annex BB (normative) Test apparatus

21、for type C2boilers . .74Annex CC (normative) Test methods to determine the effects of long-term thermal load, long-term condensate exposure, condensing/ non- condensing cycling and resistance to UV radiation . .75Annex DD (informative) Variations in gas quality . 76DD.1 Introduction . 76DD.2 Conside

22、rations if boilers are intend to be used with larger variations in the gas quality77DD.2.1 Specification of the acceptable variations77DD.2.2 Impact of the claimed range around a set value for the normal distributed gases 78DD.2.3 Impact of the declared values . 79DD.2.4 Relation between the RG, the

23、 DLG and the ELG 79DD.2.5 Self adapting appliances . 80Annex ZA (informative) Clauses of this European Standard addressing essential requirements or provisions of EU Directive 2009/142/EC, “Directive relating to appliances burning gaseous fuels (codified version)“ (GAD) 81Annex ZB (informative) Clau

24、ses of this European Standard addressing the methods for the verification of the efficiency of the EU Directive 92/42/EEC, relating to the efficiency of new hot boilers with an output of 4 400 kW.84Bibliography . 85BS EN 15502-2-1:2012 EN 15502-2-1:2012 (E) 4 Foreword This document (EN 15502-2-1:201

25、2) has been prepared by Technical Committee CEN/TC 109 “Central heating boilers using gaseous fuels”, the secretariat of which is held by NEN. 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 April

26、 2013, and conflicting national standards shall be withdrawn at the latest by October 2015. 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 ri

27、ghts. This document supersedes EN 483:1999 and EN 15420:2010. This document has been prepared under mandates M89/6 and M/066, 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)

28、, see informative Annexes ZA and ZB, which are integral parts of this document. It supports essential requirements as meant in article 3 of EU Directive 2009/142/EC, relating to appliances burning gaseous fuels and the verification methods valid for production and measurements, as meant in article 5

29、.2 of EU Directive 92/42/EEC, relating to the efficiency requirements for new hot water boilers fired with liquid or gaseous fuels, with an output of 4 - 400 kW. Changes in this standard: Many minor changes are introduced due to the harmonisation between the various standards. This includes the defi

30、nitions that are used. Some definitions are modified as some standards mentioned the same words with a different meaning. The user is advised to compare the text he is used to (including the definitions) with the current version. Most aspects were already introduced for some boiler types, but are no

31、w valid for a larger group of boilers. a) Examples of modifications due to harmonisation: 1) Requirements for materials used for the flue function (8.101, 8.102, 8,103); 2) The soundness of the combustion circuit (8.2.2); b) New or generally reworded requirements: 1) Air proving (5.4.8, 5.4.9, 8.11.

32、101); 2) Adjustment of gas air ration controllers (8.11.101); 3) Risk assessment (11); 4) Auxiliary energy use (10); BS EN 15502-2-1:2012 EN 15502-2-1:2012 (E) 5 5) Variation in gas quality (Annex CC); 6) The water trap requirements for condensing boilers (5.4.13); 7) Requirements for boiler cascade

33、s (8.101). EN 15502 is composed of the following parts: EN 15502-1, Gas-fired heating boilers Part 1: General requirements and tests; EN 15502-2-1, Gas-fired central heating boilers Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceed

34、ing 1 000 kW(the present document); prEN 15502-2-2, Gas-fired central heating boilers Part 2-2: Specific standard for type B1 appliances of a nominal heat input not exceeding 70 kW. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are

35、 bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Por

36、tugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 15502-2-1:2012 EN 15502-2-1:2012 (E) 6 Introduction A gas-fired heating boiler is an appliance using gas as fuel designed to heat water with the purpose of providing heat to a building (or portion of

37、 a building) from one point to multiple rooms using heat emitters such as radiators and convectors to transmit the heat from the water to the room. The boiler may also be used to provide domestic hot water via an indirect hot water storage tank. The basic function of gas-fired heating boiler is to g

38、enerate heat by direct heat transfer in a heat exchanger, from the combustion gasses to the water. The boiler may include in one design more than one function. It may include for example: a) a sanitary hot water function; b) a function to supply the combustion air from the outside of the building; c

39、) a function to dispose the combustion products to the outside of the building. The boiler design may be supplied to the market in more than one part. If the boiler is supplied to the market in multiple parts, the boiler is the assembly of various parts according to the installation instructions. Bo

40、ilers may be designed to be connected to specific parts of a building. Especially, connection to a chimney and the means of combustion air supply are relevant. This European Standard was established to deal with aspects related to: d) safety; e) rational use of energy; f) fitness for purpose. Matter

41、s related to quality assurance systems, tests during production, and certificates of conformity of auxiliary devices are not dealt with in this series of European Standards. Relationship between this document and EN 15502-1, Gas-fired heating boilers Part 1: General requirements and tests: This Euro

42、pean Standard is to be used in conjunction with EN 15502-1:2012 and follows the numbering structure of EN 15502-1:2012. This European Standard refers to clauses of EN 15502-1:2012 or adapts clauses by stating in the corresponding clause: shall be according to EN 15502-1:2012, (clause number) with th

43、e following modification shall be according to EN 15502-1:2012, (clause number) with the following addition EN 15502-1:2012, (clause number) is replaced by the following; EN 15502-1:2012, (clause number) is not applicable. This European Standard adds clauses or subclauses to the structure of EN 1550

44、2-1:2012 which are particular to this standard. It should be noted that these clauses and subclauses are not indicated as BS EN 15502-2-1:2012 EN 15502-2-1:2012 (E) 7 an addition. Clauses, subclauses and annexes which are additional to those in EN 15502-1:2012 are numbered starting from 101, or desi

45、gnated as Annex AA, BB, CC, etc. Annex AA lists those existing standards which are replaced by this standard in combination with EN 15502-1. After the DOW (3 years after publication of both EN 15502-1 and EN 15502-2-1 in the OJEU) the standards specified in Annex AA, for the appliance types covered

46、in EN 15502-2-1, are withdrawn. Annex AA lists those existing appliance types for which CEN/TC109 standards are intended to be replaced by EN 15502-2-2. The standards listed in Annex AA are to be used until EN 15502-2-2 specifies that the standards are withdrawn for the appliance types indicated. BS

47、 EN 15502-2-1:2012 EN 15502-2-1:2012 (E) 8 1 Scope This European Standard specifies, the requirements and test methods concerning, in particular, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of gas-fired central heating boilers

48、that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”. Where the word boiler is used, it needs to be read as the boiler including its connecting ducts, ducts and terminals, if any. This European Standard cover

49、s gas-fired central heating boilers from the types C1up to C9and the types B2, B3and B5, according to the classification in CEN/TR 1749:2009: a) that have a nominal heat input (on the basis of net calorific value) not exceeding 1 000 kW; b) that use one or more combustible gases of the three gas families at the p