NBN EN 15417 : 2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
GAS-FIRED CENTRAL HEATING BOILERS - SPECIFIC REQUIREMENTS FOR CONDENSING BOILERS WITH A NOMINAL HEAT INPUT GREATER THAN 70 KW BUT NOT EXCEEDING 1000 KW
08-01-2014
01-12-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification of boilers
4.1 Gases and categories
4.2 Classification according to the mode of
evacuation of the combustion products
4.3 Classification according to operating conditions
4.3.1 Gas condensing boiler
4.3.2 Standard boiler
5 Constructional requirements
5.1 Materials in contact with condensate
5.2 Removal of condensate
5.3 Chemical composition of the condensate
5.4 Control of the combustion products temperature
6 Operational requirements
6.1 General
6.2 Verification of the nominal condensing output
6.3 Formation of condensate
6.4 Temperature of combustion products
6.5 Combustion
6.6 Useful efficiency
6.6.1 General
6.6.2 Useful at the nominal heat input
6.6.3 Useful efficiency at part load
7 Test methods
7.1 General
7.2 Verification of the nominal condensing output
7.3 Formation of condensate
7.4 Temperature of combustion products
7.5 Combustion
7.5.1 Normal conditions
7.5.2 Condensate discharge blockage
7.6 Useful efficiency
7.6.1 General
7.6.2 Useful efficiency at nominal heat input
7.6.3 Useful efficiency at part load
8 Marking
8.1 Data plate
8.2 Instructions
8.2.1 Technical instructions for the installer
8.2.2 Use and maintenance instructions for the
user
Annex A (normative) Correction for the determined
efficiency in the low water temperature
test of condensing boilers
Annex ZA (informative) Clauses of this European standard
addressing essential requirements or other
provisions of EU Directives
Bibliography
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