EN 13836:2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
  3.1 Combustible gases
  3.2 Constituent parts of the boiler
  3.3 Operation of the boiler
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
  4.4 Modular boiler
5 Constructional requirements
  5.1 General
  5.2 Conversion to different gases
  5.3 Materials and method of construction
  5.4 Design
  5.5 Use and servicing
  5.6 Connections to the gas and water pipes
  5.7 Soundness
  5.8 Supply of combustion air and the evacuation of the
       combustion products
  5.9 Checking the state of operation
  5.10 Drainage
  5.11 Electrical equipment
  5.12 Operational safety in the event of failure of the
       auxiliary energy
  5.13 Adjusting, control and safety devices
  5.14 Burners
  5.15 Pressure test points
  5.16 Chemical composition of the condensate for
       low-temperature boilers
6 Operational requirements
  6.1 General
  6.2 Soundness
  6.3 Nominal, maximum and minimum heat inputs, and nominal
       output
  6.4 Safety of operation
  6.5 Adjusting, control and safety devices
  6.6 Combustion
  6.7 Useful efficiencies
  6.8 Criteria for condensation in the flue
  6.9 Resistance of materials to pressure
  6.10 Hydraulic resistance
  6.11 Combustion air and flue dampers
  6.12 Condensation in a standard boiler
7 Test methods
  7.1 General
  7.2 Soundness
  7.3 Nominal, maximum and minimum heat inputs and nominal
       output
  7.4 Safety of operation
  7.5 Adjusting, control and safety devices
  7.6 Combustion
  7.7 Useful efficiencies
  7.8 Criteria for condensation in the flue
  7.9 Resistance of materials to pressure
  7.10 Hydraulic resistance
  7.11 Combustion air and flue dampers
  7.12 Condensation in a standard boiler
8 Marking and instructions
  8.1 Marking of the boiler
  8.2 Instructions
  8.3 Presentation
Annex A (informative) National situations
Annex B (informative) Special national conditions
Annex C (informative) A-deviations
Annex D (informative) Practical method of calibrating the
                       test rig to enable the heat loss Dp
                       to be determined
Annex E (informative) Main symbols and abbreviations used
                       within this European Standard
Annex F (informative) Compilations of test conditions used
                       within this European Standard
Annex G (informative) Valving
Annex H (informative) Determination of the heat losses from
                       the test rig of the indirect method and
                       the contributions of the circulating pump
                       of the test rig
Annex I (informative) Means of determining the ignition time at
                       full rate
Annex J (informative) Example of calculation of the weighting
                       factors for a boiler with several rates
Annex K (informative) Calculation of conversions of NO[x]
Annex L (informative) Use of test gases
Annex ZA (informative) Clauses of this European Standard addressing
                       essential requirements or provisions of
                       EU Directives
Bibliography

This European Standard specifies the requirements and test methods concerning, in particular, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”.This European Standard applies to boilers of type B, as listed in 4.2:¾that use one or more combustible gases of the three gas families at the pressures stated in Tables 16 and 17;¾that have a nominal heat input (on the basis of net calorific value) exceeding 300 kW, but not exceeding 1 000 kW, including modular boilers;¾where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation;¾where the maximum operating pressure in the water circuit does not exceed 6 bar;¾that can give rise to condensation under certain circumstances;¾of the standard and low-temperature types.This European Standard applies to boilers designed for sealed water systems or for open water systems.This European Standard does not contain all the requirements necessary for boilers:¾intended to be installed in the open or in living rooms;¾permanently fitted with more than one flue outlet;¾where the combustion circuit is sealed with respect to the room where the boiler is installed;¾of the condensing type;¾intended to be connected to a common flue having mechanical extraction;¾fitted with a forced draught burner in accordance with EN 676 (see EN 303-7);¾producing hot water for domestic purposes.This standard only covers type testing.Matters related to quality assurance systems, tests during production, and certificates of conformity of auxiliary devices are not dealt with in this European Standard.