DIN EN 15417 E : 2006

Foreword<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Classification of boilers<br>&nbsp;&nbsp;4.1 Gases and categories<br>&nbsp;&nbsp;4.2 Classification according to the mode of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;evacuation of the combustion products<br>&nbsp;&nbsp;4.3 Classification according to operating conditions<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.3.1 Gas condensing boiler<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.3.2 Standard boiler<br>5 Constructional requirements<br>&nbsp;&nbsp;5.1 Materials in contact with condensate<br>&nbsp;&nbsp;5.2 Removal of condensate<br>&nbsp;&nbsp;5.3 Chemical composition of the condensate<br>&nbsp;&nbsp;5.4 Control of the combustion products temperature<br>6 Operational requirements<br>&nbsp;&nbsp;6.1 General<br>&nbsp;&nbsp;6.2 Verification of the nominal condensing output<br>&nbsp;&nbsp;6.3 Formation of condensate<br>&nbsp;&nbsp;6.4 Temperature of combustion products<br>&nbsp;&nbsp;6.5 Combustion<br>&nbsp;&nbsp;6.6 Useful efficiency<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.6.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.6.2 Useful at the nominal heat input<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.6.3 Useful efficiency at part load<br>7 Test methods<br>&nbsp;&nbsp;7.1 General<br>&nbsp;&nbsp;7.2 Verification of the nominal condensing output<br>&nbsp;&nbsp;7.3 Formation of condensate<br>&nbsp;&nbsp;7.4 Temperature of combustion products<br>&nbsp;&nbsp;7.5 Combustion<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.5.1 Normal conditions<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.5.2 Condensate discharge blockage<br>&nbsp;&nbsp;7.6 Useful efficiency<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.6.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.6.2 Useful efficiency at nominal heat input<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.6.3 Useful efficiency at part load<br>8 Marking<br>&nbsp;&nbsp;8.1 Data plate<br>&nbsp;&nbsp;8.2 Instructions<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.2.1 Technical instructions for the installer<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.2.2 Use and maintenance instructions for the<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;user<br>Annex A (normative) Correction for the determined<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;efficiency in the low water temperature<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;test of condensing boilers<br>Annex ZA (informative) Clauses of this European standard<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;addressing essential requirements or other<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;provisions of EU Directives<br>Bibliography

Determines gas-fired central heating boilers, which are declared by the manufacturer to be 'condensing boilers': - of types C (excluding appliances without a fan) and B; - using one or more gases corresponding to the three gas families; - for which the nominal heat input is greater than 70 kW but not exceeding 1000 kW.