1、September 2009DEUTSCHE NORM English price group 32No part of this standard 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 97.100.20!$YSt“15448
2、81www.din.deDDIN EN 777-1Multi-burner gas-fired overhead radiant tube heater systems fornon-domestic use Part 1: System D - SafetyEnglish version of DIN EN 777-1:2009-09Dunkelstrahlersysteme mit mehreren Brennern mit Geblse fr gewerbliche undindustrielle Anwendung Teil 1: System D - SicherheitEnglis
3、che Fassung DIN EN 777-1:2009-09SupersedesDIN EN 777-1:2003-03See start of validitywww.beuth.deDocument comprises pages113DIN EN 777-1:2009-09 Start of validity This standard takes effect on 1 September 2009. It should be noted that, in Germany, CE conformity marking of construction products will be
4、 permitted once this standard has been listed in the Bundesanzeiger (German Federal Gazette) and from the date given therein. National foreword 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 radia
5、nt heaters” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Gastechnik (Gas Technology Standards Committee) in collaboration with the Normenausschuss Heiz-, Koch- und Wrmgert (Heating and Cooking Equipment Standards Committee) and the Nor
6、menausschuss Heiz- und Raumlufttechnik (Heating and Ventilation Technology Standards Committee). It is intended to include this standard in the body of Codes of practice for gas issued by the DVGW Deutscher Verein des Gas- und Wasserfaches e.V. (German Technical and Scientific Association for Gas an
7、d Water). The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 228-1:1994 DIN EN ISO 228-1:2003-05 ISO 6976:1995 DIN EN ISO 6976:2005-09 Amendments This standard differs from DIN EN 777-1:2003-03 as follows: a) The systems within the scope o
8、f the standard are now defined as Type B52appliances (instead of Type B22). b) Requirements for combustion products evacuation ducts (POCEDs), supplied as an integral part of the appliance, have been specified. Previous editions DIN 3372-6: 1988-12 DIN EN 777-1/A2: 2002-03 DIN EN 777-1/A3: 2002-10 D
9、IN EN 777-1: 2000-10, 2003-03 2 DIN EN 777-1:2009-09 National Annex NA (informative) Bibliography DIN EN ISO 228-1:2003-05, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation DIN EN ISO 6976:2005-09, Natural gas Calculation of calorifi
10、c values, density, relative density and Wobbe index from composition (ISO 6976:1995 including Corrigendum 1:1997, Corrigendum 2:1997 and Corrigendum 3:1999) 3 DIN EN 777-1:2009-09 4 This page is intentionally blank EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 777-1March 2009ICS 91.140.40 Supers
11、edes EN 777-1:1999 English VersionMulti-burner gas-fired overhead radiant tube heater systems fornon-domestic use - Part 1: System D - SafetyTubes radiants suspendus multi-brleurs utilisant lescombustibles gazeux usage non-domestique - Partie 1 :Systme D - ScuritDunkelstrahlersysteme mit mehreren Br
12、ennern mit Geblsefr gewerbliche und industrielle Anwendung - Teil 1:System D - SicherheitThis European Standard was approved by CEN on 24 January 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status
13、of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 vers
14、ion in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denma
15、rk, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONE
16、UROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 777-1:2009: EEN 777-1:2009 (E) 2 Contents Page Foreword . 4 1 Scope 5 2 Normative references . 5 3
17、 Terms and definitions . 6 3.1 System and its constituent parts 6 3.2 Adjusting, control and safety devices 9 3.3 System operation 10 3.4 Gases 13 3.5 Conditions of operation and measurement 14 3.6 Country of destination 15 4 Classification of systems . 15 4.1 Classification according to the nature
18、of the gases used (categories) 15 4.2 Classification according to the gases capable of being used . 15 4.3 Classification according to the mode of evacuation of the combustion products 17 5 Constructional requirements . 17 5.1 General . 17 5.2 Requirements for adjusting, control and safety devices 2
19、2 5.3 Ignition devices . 26 5.4 Main burners 27 5.5 Pressure test points 27 5.6 Injectors . 27 6 Operational requirements 28 6.1 Soundness . 28 6.2 Heat inputs . 28 6.3 Limiting temperatures 28 6.4 Ignition, cross-lighting and flame stability . 29 6.5 Pressure regulator 29 6.6 Combustion . 29 6.7 Pr
20、olonged performance 30 6.8 Measurement of oxides of Nitrogen, NOx. 31 7 Test methods . 31 7.1 General . 31 7.2 Construction and design 38 7.3 Safety of operation 38 7.4 Other pollutants 50 8 Marking and instructions . 53 8.1 Marking of the system and the packaging . 53 8.2 Instructions 57 8.3 Presen
21、tation 61 9 Evaluation of conformity of POCEDs and their associated terminals 61 9.1 General . 61 9.2 Type testing . 61 9.3 Factory production control (FPC) . 62 Annex A (informative) National situations . 64 A.1 General . 64 A.2 Categories listed in the body of the standard and marketed in differen
22、t countries 64 A.3 Appliance supply pressures corresponding to the categories given in A.2 66 DIN EN 777-1:2009-09 EN 777-1:2009 (E) 3 A.4 Special categories marketed nationally or locally . 68 A.5 Test gases corresponding to the special categories given in A.4 . 72 A.6 Gas connections in the variou
23、s countries . 73 A.7 Flue connections in the various countries . 75 Annex B (informative) System D . 76 B.1 Type D systems . 76 Annex C (informative) Equivalence rules . 78 C.1 Conversion to categories within a restricted Wobbe Index range 78 C.2 Conversion to categories within an identical Wobbe In
24、dex range 78 C.3 Conversion to categories within a wider Wobbe Index range 79 Annex D (informative) Calculation of the mass flow rate of flue gases 80 D.1 Flue gas mass flow rate 80 D.2 Quantity of air in the flue gas 80 D.3 Flue gas excess air ratio () . 81 D.4 Quantity of water vapour in the flue
25、gas 81 D.5 Quantity of Nitrogen in the flue gas 81 D.6 Quantity of Oxygen in the flue gas 81 D.7 Dry quantity of flue gas 82 D.8 Quantity of carbon dioxide in the flue gas . 82 Annex E (informative) Identification of gas types in use in various countries 84 Annex F (normative) Special national condi
26、tions . 85 F.1 General . 85 Annex G (informative) Calculation example of the weighting factors for a system with several rates 86 G.1 Appliance rates . 86 G.2 Weighting of Qpi,%= 20 86 G.3 Weighting of Qpi,%= 40 86 G.4 Weighting of Qpi,%= 60 86 G.5 Weighting of Qpi,%= 70 87 G.6 Total weighting 87 An
27、nex H (informative) Calculation of conversions of NOx. 88 H.1 NOxemission conversion factors 88 H.2 NOxConversion Calculation 89 Annex I (informative) National situations of countries whose national bodies are CEN associate members . 91 Annex J (informative) An example of sampling plans 92 J.1 Sampl
28、ing plans 92 J.2 Inspection levels and procedures . 93 Annex K (informative) Flue determination . 94 K.1 General conditions of test 94 K.2 Test conditions 94 K.3 Test procedure 94 K.4 Accuracy of measurement . 96 K.5 Calculation of Flue Loss. 96 Annex ZA (informative) Clauses of this European Standa
29、rd addressing essential requirements or other provisions of EU Directives . 99 Annex ZB (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive 102 ZB.1 Scope and relevant characteristics . 102 ZB.2 Procedure(s) for attestation of conformit
30、y of construction products 104 ZB.3 CE marking and labelling . 107 Bibliography . 109 DIN EN 777-1:2009-09 EN 777-1:2009 (E) 4 Foreword This document (EN 777-1:2009) has been prepared by Technical Committee CEN/TC 180 “Domestic and non-domestic gas fired air heaters and non-domestic gas fired overhe
31、ad radiant 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 September 2009, and conflicting national standards shall be withdrawn at the latest
32、by September 2009. 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 777-1:1999. This revision modifies EN 7
33、77-1:1999. 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 the systems within the scope of this standard are
34、now defined as Type B52rather than Type B22. Furthermore, the opportunity presented by this revision has been taken to update the standard in respect to EN 437:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and s
35、upports essential requirements of EC Directive(s). For relationship with EC Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impl
36、ement 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
37、 and the United Kingdom. DIN EN 777-1:2009-09 EN 777-1:2009 (E) 5 1 Scope This European Standard specifies the requirements and test methods for the construction, safety, classification and marking of non-domestic gas-fired overhead radiant tube heaters incorporated into a multi-burner system (calle
38、d system D and referred to in the body of the text as the “system”) with each burner unit under the control of an automatic burner control system. This standard is applicable to Type B52systems (see 4.3) intended for use in other than domestic dwellings, in which the supply of combustion air and/or
39、the evacuation of the products of combustion is achieved by mechanical means. This standard is not applicable to: a) systems designed for use in domestic dwelling; b) outdoor systems; c) systems of heat input in excess of 120 kW (based on the net calorific value of the appropriate reference test gas
40、); d) systems having a draught diverter; e) systems having fully pre-mixed gas and air burners in which: 1) either the gas and all the combustion air are brought together just before the level of the combustion zone; or 2) the pre-mixing of the gas and all combustion air is carried out in a part of
41、the burner upstream of the combustion zone; f) systems that are designed for continuous condensation within the flue system under normal operating conditions; g) systems having combustion products evacuation ducts that are non-metallic. This standard is applicable to systems which are intended to be
42、 type tested. It also includes requirements concerning the evaluation of conformity, including factory production control, but these requirements only apply to POCEDs and their associated terminals. NOTE Requirements for systems which are not intended to be type tested would need to be subject to fu
43、rther consideration. Requirements concerning the rational use of energy have not been included in this European Standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editions cited applies. For undat
44、ed 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 126:2004, Multifunctional controls for
45、 gas burning appliances EN 161:2007, Automatic shut-off valves for gas burners and gas appliances DIN EN 777-1:2009-09 EN 777-1:2009 (E) 6 EN 257, Mechanical thermostats for gas-burning appliances EN 298:2003, Automatic gas burner control systems gas burners and gas burning appliances with or withou
46、t fans EN 437:2003, Test gases - Test pressures - Appliance categories EN 10226-1:2004, Pipe threads where pressure-tight joints are made on the threads Part 1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation EN 10226-2:2005, Pipe threads where pressure
47、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 appliances Safety - Part 1: General requirements EN 60335-2-102:2006, Household and similar electrical appliances
48、Safety - Part 2-102: Particular requirements for gas, oil and solid-fuel burning having electrical connections EN 60529:1992, Degrees of protection provided by enclosures (IP code) EN 60584-1:1995, Thermocouples Part 1: Reference tables EN 60584-2:1993, Thermocouples Part 2: Tolerances EN ISO 228-1:
49、2003, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) EN ISO 3166-1:2006, Codes for the representation of names of countries and their subdivisions Part 1: Country codes (ISO 3166-1:2006) EN ISO 6976:2005, Natural gas - Calculation of the calorific value, density, relative density and Wobbe index from composition (ISO 6976:1995 including Corrigendum 1:1997, Corrigendum 2:1997 and Corrigendum 3:1999) ISO 7005-1:1992, Metallic flanges - Part 1: Steel
