1、March 2010 Translation by DIN-Sprachendienst.English price group 34No 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
2、97.100.20!$“1619899www.din.deDDIN EN 778Domestic gas-fired forced convection air heaters for space heating notexceeding a net heat input of 70 kW, without a fan to assisttransportation of combustion air and/or combustion productsEnglish translation of DIN EN 778:2010-03Gasbefeuerte Warmlufterzeuger
3、mit erzwungener Konvektion zum Beheizen von Rumenfr den huslichen Gebrauch mit einer Nennwrmebelastung nicht ber 70 kW, ohneGeblse zur Befrderung der Verbrennungsluft und/oder der AbgaseEnglische bersetzung von DIN EN 778:2010-03Gnrateurs dair chaud convection force utilisant les combustibles gazeux
4、 pour lechauffage de locaux usage dhabitation de dbit calorifique sur Hi infrieur ou gal 70 kW, sans ventilateur pour aider lalimentation en air comburant et/ou lvacuation desproduits de combustionTraduction anglaise de DIN EN 778:2010-03SupersedesDIN EN 778:2002-01See start of validitywww.beuth.deD
5、ocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.03.10 130DIN EN 778:2010-03 A comma is used as the decimal marker. Start of validity This standard is due to take effect on 1 April 2010. DIN EN 778:2002-01 may be used in parallel until 30 April
6、2010 (but see Official Journal of the EU for end of coexistence period). It should be noted that, in Germany, CE conformity marking of construction products will be permitted once this standard has been listed in the Bundesanzeiger (German Federal Law Gazette) and from the date given therein. Nation
7、al foreword This standard includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 180 “Domestic and non-domestic gas fired air heaters and non-domestic gas fired overhead radiant heaters” (Secretariat: AFNOR, France). The responsible German body involved in its pr
8、eparation was the Normenausschuss Gastechnik (Gas Technology Standards Committee). This standard has been included in the body of Codes of practice for gas issued by the DVGW Deutsche Vereinigung des Gas- und Wasserfaches e.V. (German Technical and Scientific Association for Gas and Water). Amendmen
9、ts This standard differs from DIN EN 778:2002-01 as follows: a) The scope of the standard has been extended to cover type B4appliances. b) Requirements for combustion products evacuation ducts (POCEDs), supplied as an integral part of the system, have been incorporated. c) The standard has been brou
10、ght in line with EN 437:2003. Previous editions DIN EN 778: 1998-03, 2002-01 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 778 October 2009 ICS 97.100.20 Supersedes EN 778:1998English Version Domestic gas-fired forced convection air heaters for space heating not exceeding a net heat input o
11、f 70 kW, without a fan to assist transportation of combustion air and/or combustion products Gnrateurs dair chaud convection force utilisant les combustibles gazeux pour le chauffage de locaux usage dhabitation de dbit calorifique sur Hi infrieur ou gal 70 kW, sans ventilateur pour aider lalimentati
12、on en air comburant et/ou lvacuation des produits de combustion Gasbefeuerte Warmlufterzeuger mit erzwungener Konvektion zum Beheizen von Rumen fr den huslichen Gebrauch mit einer Nennwrmebelastung nicht ber 70 kW, ohne Geblse zur Befrderung der Verbrennungsluft und/oder der Abgase This European Sta
13、ndard was approved by CEN on 12 September 2009. 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 without any alteration. Up-to-date lists and bibliographical references concern
14、ing such national standards may be obtained on application to the CEN Management Centre 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
15、language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuani
16、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN
17、All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 778:2009: EEN 778:2009 (E) 2 Contents Page Foreword 41 Scope 62 Normative references 73 Terms and definitions .83.1 Appliance and its constituent parts .83.2 Adjustment, control and safet
18、y devices . 103.3 Operation of the appliance 133.4 Gases . 153.5 Conditions of operation and measurement . 163.6 Marking of the appliance and packaging . 174 Classification . 174.1 Classification of gases . 174.2 Classification of appliance 185 Construction and design requirements . 215.1 General .
19、215.2 Adjusting, control and safety devices 275.3 Ignition devices . 315.4 Flame supervision system . 315.5 Start-gas flame establishment . 325.6 Main flame establishment 335.7 Main burner . 335.8 Facility for remote control . 345.9 Thermostats and control of air temperature 345.10 Gas pressure test
20、 points 356 Operational requirements 356.1 Safety of operation . 356.2 Efficiency . 417 Test methods . 427.1 General . 427.2 Construction and design . 497.3 Safety of operation . 507.4 Efficiency . 828 Marking and instructions . 878.1 Marking of the appliance 878.2 Marking of the packaging 888.3 Uti
21、lization of symbols on the appliance and packaging . 898.4 Instructions . 919 Evaluation of POCED conformity and their associated terminals . 939.1 General . 939.2 Type testing . 939.3 Factory production control (FPC) . 93Annex A National situations . 96A.1 General . 96A.2 Categories listed in the b
22、ody of the standard and marketed in different countries 96A.3 Appliance supply pressures corresponding to the categories given in A.2 98A.4 Special categories marketed nationally or locally 99A.5 Test gases corresponding to the special categories given in A.4 105DIN EN 778:2010-03 (informative) EN 7
23、78:2009 (E) 3 A.6 Gas connections in the various countries 108A.7 Flue connections in the various countries . 110Annex B (informative) Equivalence rules)111B.1 Conversion to categories within a restricted Wobbe index range . 111B.2 Conversion to categories within an identical Wobbe index range. 111B
24、.3 Conversion to categories within a wider Wobbe index range 112Annex C (informative) A-deviations 113C.1 General . 113C.2 Switzerland . 113Annex D (normative) Special national conditions . 114D.1 Special national conditions 114D.2 Belgium. 114D.3 Italy 114D.4 Poland . 114Annex E (informative) Ident
25、ification of gas types in use in various countries . 115Annex F (informative) National solutions for countries whose national bodies are Affiliate Members of CEN 116F.1 Categories listed in the body of the standard and marketed in different countries 116F.2 Appliance supply pressures corresponding t
26、o the categories given in F.1 . 116F.3 Special categories marketed nationally or locally . 116F.4 Gases and test pressures corresponding to the special categories given in F.3 116Annex G (informative) Calculation of conversions of NOx . 117Annex H (informative) An example of sampling plans 118H.1 Sa
27、mpling plans 118H.2 Inspection levels and procedures . 119Annex ZA (informative) 120Annex ZB Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 122ZB.1 Scope and relevant characteristics . 122ZB.2 Procedure(s) for attestation of conformity of cons
28、truction products . 124ZB.3 CE marking and labelling 126Bibliography 128DIN EN 778:2010-03 (informative) EN 778:2009 (E) 4 Foreword This document (EN 778:2009) has been prepared by Technical Committee CEN/TC 180 “Domestic and non-domestic gas fired air heaters and non-domestic gas fired overhead rad
29、iant heaters”, the secretariat of which is held by AFNOR. 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 2010, and conflicting national standards shall be withdrawn at the latest by April 2
30、010. 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 778:1998. This document has been prepared under a man
31、date 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, and Annex ZB, which are integral parts of this document. This revision modifies EN 778:1998.
32、It has been prepared to incorporate requirements for combustion products evacuation ducts, POCEDs, supplied as an integral part of the system to support the EU Directive 89/106/EEC on construction products under mandate M 105. To this end, it extends the scope of the standard to cover type B4 applia
33、nces. Furthermore, the opportunity presented by this revision has been taken to update the standard in respect to EN 437:2003. NOTE For countries requesting special categories (specified in EN 437:2003), the absence of specific information concerning A.3.3 and A.3.4 implies that the general requirem
34、ents described in the body of the standard (see 4.1.1, 4.2.2, 4.2.3 and 4.2.5) also apply to these special categories. EN 525, Non-domestic direct gas-fired forced convection air heaters for space heating not exceeding a net heat input of 300 kW EN 621, Non-domestic gas-fired forced convection air h
35、eaters for space heating not exceeding a net heat input of 300 kW, without a fan to assist transportation of combustion air and/or combustion products EN 1020, Non-domestic gas-fired forced convection air heaters for space heating not exceeding a net heat input of 300 kW, incorporating a fan to assi
36、st transportation of combustion air and/or combustion products EN 1196, Domestic and non-domestic gas-fired air heaters Supplementary requirements for condensing air heaters EN 1319, Domestic gas-fired forced convection air heaters for space heating, with fan-assisted burners not exceeding a net hea
37、t input of 70 kW EN 12669, Direct gas-fired hot air blowers for use in greenhouses and supplementary non-domestic space heating DIN EN 778:2010-03 EN 778:2009 (E) 5 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impleme
38、nt this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland an
39、d the United Kingdom. DIN EN 778:2010-03 EN 778:2009 (E) 6 1 Scope This European Standard specifies the requirements and test methods for the safety and efficiency of domestic gas-fired air heaters with (an) atmospheric burner(s) and without a fan to assist the transportation of combustion air and/o
40、r flue gases, hereafter referred to as “appliances“. This European Standard applies to Type B11, B11AS, B11BS, B41, B41AS, B41BSC11, C21, C31and C41appliances with an input not exceeding 70 kW (net cv-basis), intended primarily for use in single unit residential dwellings. Provision of the heated ai
41、r may be by means of ducting. This European Standard does not apply to: a) appliances of the condensing type; b) appliances for outdoor installation; c) dual purpose air conditioning appliances (heating and cooling); d) appliances where the air is heated by an intermediate fluid; e) appliances with
42、forced draught burners; f) appliances fitted with a manual or automatic means of adjusting the combustion air supply or the combustion products evacuation (including flue dampers); g) portable or transportable forced convection appliances; h) appliances having multiple heating units with a single dr
43、aught diverter; i) appliances fitted with more than one flue outlet; j) C21and C41appliances for 3rd family gases; NOTE For C41appliances, see all requirements and test methods that are valid for C21appliances, unless otherwise stated. k) appliances that are designed for continuous condensation with
44、in the flue system under normal operating conditions; l) appliances having Products Of Combustion Evacuation Ducts (POCED), that are non-metallic. This European Standard is applicable to appliances which are intended to be type tested. It also includes requirements concerning the evaluation of confo
45、rmity, including factory production control, but these requirements only apply to POCEDs and their associated terminals. DIN EN 778:2010-03 EN 778:2009 (E) 7 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only t
46、he edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 88-1:2007, Pressure regulators and associated safety devices for gas appliances Part 1: Pressure regulators for inlet pressures up to and including 500 mbar EN 125:1
47、991, Flame supervision devices for gas burning appliances Thermo-electric flame supervision devices EN 126:2004, Multifuctional controls for gas burning appliances EN 161:2007, Automatic shut-off valves for gas burners and gas appliances EN 257:1992, Mechanical thermostats for gas-burning appliances
48、 EN 298:2003, Automatic gas burner control systems for gas burners and gas burning appliances with or without fans EN 437:2003, Test gases Test pressures Appliance categories EN 1859:2000, Chimneys Metal Chimneys Test methods EN 10226-1:2004, Pipe threads where pressure tight joints are made on the
49、threads Part 1: Taper external threads and parallel internal threads Dimensions, tolerances and designation EN 10226-2:2005, Pipe threads where pressure tight joints are made on the threads Part 2: Taper external threads and taper internal threads Dimensions, tolerances and designation EN 60335-1:2002, Household and similar electrical applianc
