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BS EN 15502-2-2:2014

Current
Current

The latest, up-to-date edition.

Gas-fired central heating boilers Specific standard for type B1 appliances
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-28-2015

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Classification
5 Construction
6 Electrical safety
7 Controls
8 Operational requirements
9 Useful efficiencies
10 Electric auxiliary energy
11 Risk assessment
12 Marking and instructions
101 Figures
102 Listing of tables and numbers
103 Annexes
Annex I (informative) - Compilation of the test
        conditions for the various gas families
Annex V (informative) - Standards replaced by this
        standard in combination with EN 15502-1
Annex ZA (informative) - Clauses of this European
         Standard addressing essential requirements
         or provisions of EU Directive 2009/142/EC,
         'Directive relating to appliances Burning
         gaseous fuels (codified version)' (GAD)
Annex ZB (informative) - Clauses of this European standard
         addressing the methods for the verification of the
         efficiency of the EU Directive 92/42/EEC, relating
         to the efficiency of new hot boilers with an output
         of 4 kW - 400 kW
Bibliography

Describes, 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 and are hereafter referred to as 'boilers'.

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 and are hereafter referred to as “boilers”. Where the word boiler is used, this is to be read as the boiler including its connecting ducts, ducts and terminals, if any. This European Standard covers gas-fired central heating boilers typeB 11, B 11BS, B 12, B 12BS, B 13, B 13BS according to the classification in CEN/TR1749:2009 : that have a nominal heat input (on the basis of net calorific value) not exceeding 70kW; that use one or more combustible gases of the three gas families at the pressures stated in EN437 ; where the temperature of the heat transfer fluid does not exceed 105°C during normal operation; where the maximum operating pressure in the water circuit does not exceed 6bar; which are declared in the technical instructions to be either a “low temperature boiler” or a “standard boiler”. If no declaration is given the boiler is to be considered a “ standard boiler”; which are intended to be installed either indoors or in a partially protected place; which are either not intended to produce hot water, or are intended to produce hot water either by the instantaneous or storage principle, the whole being marketed as a single unit. which are designed for either sealed water systems or for open water systems. This European Standard is to be used in conjunction with the General Requirements Standard EN15502‑1 . For applications within the scope of the PED further requirements may be necessary (e.g. situations where the maximum allowable temperature exceeds 110°C, or where volume times maximum allowable pressure is over 50bar x litres). This standard provides requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard, the risk associated with this alternative construction shall be assessed. An example of an assessment methodology, based upon risk assessment and which covers the essential requirements of the Gas Appliance Directive, is given in Clause11. This standard does not cover all the requirements for: appliances that are intended to be connected to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see AnnexDD of EN15502‑2‑1:2012 ); appliances using flue dampers; appliances that have a nominal heat input (on the basis of net calorific value) exceeding 70kW; appliances of the typesA, B 14, B 2, B 3, B 4, B 5 and C; appliances intended to be connected to a (common) flue having mechanical extraction; appliances with gas/air ratio control; modular boilers; boilers which can give rise to condensation under certain circumstances; boilers intended to be installed in a room with a foreseeable negative pressure relative to the pressure in the flue system. NOTE Negative pressure relative to the pressure in the flue system can for example be caused by mechanical or thermal ventilation in airtight buildings.

Committee
GSE/29
DevelopmentNote
Together with BS EN 15502-1 & BS EN 15502-2-1, it supersedes BS EN 297, BS EN 625, BS EN 677 & BS EN 15417 which remains current and will be withdrawn on 31/07/2017. (09/2014) Supersedes 12/30267093 DC. (02/2015)
DocumentType
Standard
Pages
50
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
EN 15502-2-2:2014 Identical

EN 15502-1:2012+A1:2015 Gas-fired heating boilers - Part 1: General requirements and tests
IEC 60730-2-9:2015 RLV Automatic electrical controls - Part 2-9: Particular requirements for temperature sensing controls
EN 60730-2-9:2010 Automatic electrical controls for household and similar use - Part 2-9: Particular requirements for temperature sensing controls
EN 14459:2015 Safety and control devices for burners and appliances burning gaseous or liquid fuels - Control functions in electronic systems - Methods for classification and assessment
EN 437:2003+A1:2009 Test gases - Test pressures - Appliance categories
CEN/TR 1749:2014 European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types)
EN 15502-2-1:2012+A1:2016 Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW

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