EN 203-1:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Plinske naprave za gostinstvo - 1. del: Splošna varnostna pravilaGroßküchengeräte für gasförmige Brennstoffe - Teil 1: Allgemeine SicherheitsanforderungenAppareils de cuisine professionnelle utilisant les combustibles gazeux - Partie 1: Règles générales de sécuritéGas heated catering equipment - Part 1: General safety rules97.040.20Cooking ranges, working tables, ovens and similar appliancesICS:Ta slovenski standard je istoveten z:EN 203-1:2014SIST EN 203-1:2014en,fr,de01-julij-2014SIST EN 203-1:2014SLOVENSKI
STANDARDSIST EN 203-1:2006+A1:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 203-1
February 2014 ICS 97.040.20 Supersedes EN 203-1:2005+A1:2008English Version
Gas heated catering equipment - Part 1: General safety rules
Appareils de cuisine professionnelle utilisant les combustibles gazeux - Partie 1: Règles générales de sécurité
Großküchengeräte für gasförmige Brennstoffe - Teil 1: Allgemeine Sicherheitsanforderungen This European Standard was approved by CEN on 13 December 2013.
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 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 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.
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Foreword .6 1 Scope .8 2 Normative references .8 3 Terms and definitions .9 3.1 Terminology referring to gases and pressures .9 3.2 General terminology referring to appliance design . 10 3.3 Terminology referring to appliance operation . 15 4 Classification . 17 5 Constructional requirements . 19 5.1 General . 19 5.1.1 Conversion to different gases . 19 5.1.2 Materials and methods of construction . 20 5.1.3 Use, cleaning and maintenance . 21 5.1.4 Gas connections . 21 5.1.5 Soundness . 21 5.1.6 Supply of combustion air and evacuation of combustion products . 22 5.1.7 Flame visibility . 24 5.1.8 Electrical safety. 24 5.1.9 Construction requirements for gas cylinder compartment . 24 5.2 Particular requirements for components in the gas circuit . 25 5.2.1 General . 25 5.2.2 Gas rate control and shut-off device . 25 5.2.3 Auxiliary equipment . 27 5.2.4 Burners . 29 5.2.5 Gas rate adjusters. 29 5.3 Particular requirements . 29 5.3.1 Food spillage . 29 5.3.2 Stability and mechanical safety . 30 5.3.3 Safety from fire risk . 30 5.3.4 Appliances connected to a potable water supply . 30 6 Performance requirements . 30 6.1 Soundness . 30 6.1.1 Soundness of the gas circuit . 30 6.1.2 Soundness of combustion product circuit of type B appliances . 30 6.2 Obtaining the gas rate . 31 6.2.1 Nominal heat input (Qn) . 31 6.2.2 Full calorific rate . 31 6.2.3 Reduced heat input. 31 6.2.4 Ignition burner heat input . 31 6.3 Safety of operation . 31 6.3.1 Burners . 31 6.3.2 Temperature limits . 32 6.3.3 Ignition – cross-lighting - flame stability . 33 6.3.4 Combustion products safety devices for type B11BS appliances . 34 6.3.5 Pre-purge . 34 6.4 Influence of burners on each other. 34 6.5 Auxiliary equipment . 35 6.5.1 Flame shut off device . 35 SIST EN 203-1:2014

National situations . 69 A.1 Connection requirements in force in various countries (see 5.1.4) . 69 A.2 Requirements for flue connection in force in various countries (see 5.1.6.5) . 70 A.3 Categories, test gases and test pressures . 71 Annex B (normative)
Use of symbols on appliances and packaging . 72 B.1 General . 72 B.2 Electric power supply . 72 B.3 Type of gas . 72 B.4 Gas supply pressure . 72 B.5 Country of destination . 73 B.6 Category . 73 B.7 Other optional information . 73 B.8 Nominal heat input of burner . 73 B.9 Nominal heat input of set of burners on appliance . 73 Annex C (informative)
Trilingual list of appliances in the scope of EN 203-1 and corresponding Part 2 . 74 Annex D (normative)
Non pneumatic air/gas control devices . 75 D.1 Requirements . 75 D.1.1 Endurance . 75 D.1.2 Leakage of non-metallic control tubes . 75 D.1.3 Safety of operation . 75 D.1.4 Adjustment of air/gas ratio . 75 D.2 Tests . 76 D.2.1 Endurance . 76 D.2.2 Leakage of non-metallic control tubes . 76 D.2.3 Safety of operation . 76 D.2.4 Adjustment of the air/gas ratio controls . 77 Annex E (informative)
Composition of the gas circuit . 78 E.1 Minimum requirements for: . 78 SIST EN 203-1:2014

Clauses of this European Standard addressing essential requirements or other provisions of EU Directives . 80 Bibliography . 82
1) The term "safety" includes not only the safety of the appliance gas line but also that of the overall cooking appliance during its normal use in catering. SIST EN 203-1:2014

(IEC 60335-1:2001, modified) EN 60335-2-102, Household and similar electrical appliances – Safety – Part 2-102: Particular requirements for gas, oil and solid-fuel burning appliances having electrical connections (IEC 60335-2-102) EN 60730-2-9, Automatic electrical controls for household and similar use – Part 2-9: Particular requirements for temperature sensing controls (IEC 60730-2-9) EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1) ISO 301, Zinc alloy ingots intended for castings 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 Terminology referring to gases and pressures 3.1.1 reference conditions 15 °C, 1 013,25 mbar 3.1.2 units calorific value and Wobbe number: (MJ/m3) Note 1 to entry: Test pressures: 1 mbar = 102 Pa. 3.1.3 gas supply pressure p difference between the static pressure measured at the inlet connection of the appliance, with the appliance in operation, and atmospheric pressure Note 1 to entry: Gas supply pressure is expressed in millibars (mbar). 3.1.4 relative density d ratio of the masses of equal volumes of dry gas and dry air under the same conditions of temperature and pressure: 15 °C or 0 °C and 1 013,25 mbar [SOURCE: EN 437:2003+A1:2009, 3.10] 3.1.5 calorific value quantity of heat produced by the complete combustion, at a constant pressure equal to 1 013,25 mbar, of a unit volume or mass of gas, the constituents of the combustible mixture being taken at reference conditions and the products of combustion being brought back to the same conditions Note 1 to entry: A distinction is made between: SIST EN 203-1:2014
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