BS EN 677-1998 Gas-fired central heating boilers Specific requirements for condensing boilers with a nominal heat input not exceeding 70 kW.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 677:1998 The Europe
2、an Standard EN 677:1998 has the status of a British Standard ICS 91.140.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Gas-fired central heating boilers Specific requirements for condensing boilers with a nominal heat input not exceeding 70 kW This British Standard, having
3、 been prepared under the direction of the Sector Board for Engineering, was published under the authority of the Standards Board and comes into effect on 15 November 1998 BSI 1998 ISBN 0 580 28206 6 BS EN 677:1998 Amendments issued since publication Amd. No.DateText affected National foreword This B
4、ritish Standard is the English language version of EN 677:1998. It supersedes DD 189:1990, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee GSE/29, Domestic gas-fired central heating boilers, which has the responsibility to: aid enquirers to understand
5、 the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can
6、be obtained on request to its secretary. The English-language ratified text of EN 677:1998 contained errors which have been corrected in this version of BS EN 677:1998. The corrections are as follows: in 5.6.1, in the paragraph after the equation, the word respectively has been changed to as well as
7、; in annex A the first term in the third equation has been changed from h to hu; and, to align with the French-language version, the clause entitled Special categories marketed nationally or locally in annex B has been renumbered B.3, and the first table in annex ZA has been numbered Table ZA.1. Cro
8、ss-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic C
9、atalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document
10、comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN A
11、ll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 677:1998 E EUROPEAN STANDARDEN 677 NORME EUROPE ENNE EUROPA ISCHE NORM June 1998 ICS: 91.140.10 Descriptors: Heaters, central heating, boilers, condensation, equipment specifications, perf
12、ormance evaluation, tests, technical notices English version Gas-fired central heating boilers Specific requirements for condensing boilers with a nominal heat input not exceeding 70 kW Chaudie res de chauffage central utilisant les combustibles gazeux Exigences spe cifiques aux chaudie res a conden
13、sation dont le de bit calorifique nominal est infe rieur ou e gal a 70 kW Heizkessel fu r gasfo rmige Brennstoffe Besondere Anforderungen an Brennwertkessel mit einer Nennwa rmebelastung kleiner als oder gleich 70 kW This European Standard was approved by CEN on 20 June 1998. CEN members are bound t
14、o comply with the CEN/CENELEC 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 Centr
15、al Secretariat or to 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 Central Secretariat has the same status as t
16、he official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Page 2 EN 677:1998 BSI 1998 Foreword This European St
17、andard has been prepared by Technical Committee CEN/TC 109, Central heating boilers using gaseous fuels, the secretariat of which is held by NNI. 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 De
18、cember 1998, and conflicting national standards shall be withdrawn at the latest by December 1998. This European Standard has been prepared 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 rel
19、ationship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, De
20、nmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 3.1condensing boiler3 3.2condensate3 3.3nominal condensing output3 3.4maximum a
21、llowable working temperature3 4Constructional requirements3 4.1Materials in contact with condensate3 4.2Removal of condensate3 4.3Control of the combustion products temperature3 4.4Chemical composition of the condensate4 5Operational requirements4 5.1General4 5.2Verification of the nominal condensin
22、g output4 5.3Formation of condensate4 5.4Temperature of combustion products4 5.5Combustion4 5.6Efficiencies4 6Test methods4 6.1General4 6.2Verification of the nominal condensing output4 6.3Formation of condensates5 6.4Temperature of combustion products5 6.5Combustion5 6.6Efficiencies5 7Marking5 7.1D
23、ata plate5 7.2Instructions5 Annex A (normative) Correction for the determined efficiency in the low water temperature test of condensing boilers6 Annex B (informative) Special national conditions7 Annex C (informative) A-deviations9 Annex ZA (informative) Clauses of this European Standard addressing
24、 essential requirements or other provisions of EU Directives.9 Page 3 EN 677:1998 BSI 1998 1 Scope This European Standard applies to gas-fired central heating boilers, which are declared by the manufacturer to be condensing boilers: of types B (excluding appliances without a fan) and C; using one or
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