EN 509 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM October2024 ICS97.100.20 Supersedes EN 509:1999 English Version Decorative fuel-effect gas appliances Appareils a effet décoratif de combustion utilisant les Dekorative Gasgerate mit Brennstoffeffekt combustibles gazeux This European Standard was approved by CEN on 15 April 2024. 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 any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by Centrehas the same status as the official versions. CENmembers are thenational 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @2024CEN All rights of exploitation in any form and by any means reserved Ref.No.EN509:2024E worldwideforCENnational Members. Page Contents European foreword.. 1 Scope... 7 2 Normative references 3 Terms and definitions ... 3.1 Decorative fuel effect gas appliances. 3.2 Appliance construction.. 3.2.1 The gas circuit .. 3.2.2 Burner... .10 3.2.3 11 3.2.4 Auxiliary equipment.... 11 3.3 Appliance performance . .12 3.3.1 nominal heat input . 3.3.2 Gas combustion... .12 4 Classification... 4.1 Gases and categories. 15 4.1.1 Classification of gases .. .15 4.1.2 Appliance categories.... 4.2 Classification according to the method of evacuation of the products of combustion .... 15 5 Constructional requirements .. 5.1 5.1.1 Conversion to different gases ... .16 5.1.2 Materials and method of construction .... 5.1.3 Accessibility for use and maintenance . 5.1.4 Connections... 18 5.1.5 Soundness of the gas circuit ... .19 5.1.6 Spacing.... 19 5.1.7 Electrical equipment... 19 5.1.8 Safety in the event of fluctuation, interruption and restoration of the auxiliary 19 5.2 Adjusting, control and safety devices . .20 5.2.1 General.... 5.2.2 5.2.3 Flame picture adjuster... .20 5.2.4 Manual controls .. ..20 5.2.5 Pressure regulators.... 5.2.6 Multifunctional controls... .22 5.2.7 Flame supervision devices. .22 5.2.8 Shut.off valves.... 5.2.9 Automatic burner control systems..... .22 5.2.10 Atmosphere sensing device... .23 5.3 Ignition devices.... 5.3.1 General. 23 5.3.2 Ignition burner.. 23 5.4 .Flame supervision systems... 5.4.1 General...... 23 5.4.2 24 5.5 Ignition burner or start-gas flame establishment ... 24 5.5.1 Appliances with non-automatic burner systems ... 24 5.5.2 Apliances with automatic burner systems.... 24 5.6 Main flame establishment .... 5.6.1 General .. 24 5.6.2 Appliances with non.automatic burner systems ..... 5.6.3 Appliances with automatic burner control systems.... 24 5.6.4 Direct establishment of the main flame .. 24 5.7 Burners...... 25 5.7.1 25 5.7.2 Pan burners, 25 5.8 Gas pressure test points.. 25 6 Operational requirements ... 25 6.1 Soundness of the gas circuit and correct evacuation of combustion products 25 6.1.1 25 6.1.2 Correct evacuation of combustion products.... 25 6.1.3 Escape of unburnt gas from the burner.. 25 6.2 26 6.2.1 Nominal heat input... 6.2.2 Start gas heat input.. 26 6.2.3 .Reduced rate... 26 6.3 Temperature of various parts of the appliance and its surrounding area .. 26 6.3.1 Temperature of external parts of the appliance .. .26 6.3.2 Temperature of component.... 6.3.3 Floor temperatures.... 27 6.4 Ignition, cross-lighting and flame stability .... 27 6.4.1 Ignition and cross lighting..... 27