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BS EN 15502-2-3:2023

BS EN 15502-2-3:2023

$189.07

Gas-fired central heating boilers – Specific standard for hybrid units combining a gas-fired boiler and an electrical heat pump in a product

Published By Publication Date Number of Pages
BSI 2023 46
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This document specifies, the requirements and tests methods concerning, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of hybrid units. The hybrid unit is composed by: ā€” a gas boiler as heat generator which is able to supply the heat demand in all operating conditions; ā€” an electrical heat pump air-to-water, as heat generator, which has not to fulfil the heat demand in all operating conditions; ā€” a control unit (see definition 3.1.10). The hybrid unit may include the facility to produce hot water, either by the instantaneous or storage principle, the whole being marketed as a single unit. The gas boiler as part of the hybrid unit covered by this document is a gas-fired central heating boilers from the types C1 up to C9 and the types B2, B3 and B5, according to the classification in EN 1749:2020: a) that have a nominal heat input (on the basis of gross calorific value) not exceeding 400 kW; b) that use one or more combustible gases of the three gas families at the pressures stated in EN 437:2021; c) where the temperature of the heat transfer fluid does not exceed 105 Ā°C during normal operation; d) where the maximum operating pressure in the water circuit does not exceed 6 bar; e) which shall be classified as a Gas-fired central heating boiler; f) which are intended to be installed either indoors or outdoors in a partially protected place; g) which are designed for either sealed water systems or for open water systems. This document provides requirements for boilers with known constructions. NOTE 1 For boilers with any alternative constructions, which might not fully be covered by this document, the risk associated with this alternative construction needs to be assessed. NOTE 2 An example of an assessment methodology, based upon risk assessment and which covers the essential requirements of the Gas Appliance Regulation UE/426/2016, is given in Clause 11. This document does not cover all the requirements for: aa) 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 EN 15502-1:2021, Annex AB); ab) appliances using flue dampers; ac) appliances of the types B21, B31, B51, C21, C41, C51, C61, C71 and C81; ad) appliances incorporating flexible plastic flue liners; ae) appliances designed to become connected to a combined flue duct system. af) appliances of the types C(10),C(11), C(12) and C(13); ag) C7 appliances that have a nominal heat input (on the basis of net calorific value) exceeding 70 kW; ah) appliances intended to be connected to a flue having mechanical extraction; ai) surface temperatures of external parts particular to children and elderly people; aj) appliances that are intended to burn natural gases of the second family where hydrogen is added to the natural gas; ak) appliances equipped with an adaptive combustion control function (ACCF); al) boilers intended to be installed in areas accessible to elderly people and children. This document specifies minimum operating requirements which ensure that the products are fit for the use designated by the technical instructions when used for space heating and/or DHW production. This document is to be used in conjunction with: ba) the gas fired boiler, the generic part EN 15502 1:2021 and specific parts FprEN 15502-2-1:2022 and FprEN 15502-2-2:2022; bb) the electrical heat pump, EN 14511 4:2018, EN 378 1:2016+A1:2020, EN 378 2:2016 and FprEN 14825:2021; bc) electrical safety, EN 60335 1:2019, EN 60335 2 102:2016 and IEC 60335 2 40:2018; bd) for domestic hot water production, FprEN 13203 5:2022.

PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
10 2 Normative references
11 3 Terms, definitions and symbols
12 4 Classification
5 Construction
14 6 Electrical safety
7 Controls
15 8 Operational requirements
19 9 Useful efficiencies
21 10 Electric auxiliary energy
11 Risk assessment
12 Marking and instructions
24 Annex XA(normative)Test apparatus for type C2 boilers
25 Annex XB(normative)Test methods to determine the effects of long-term thermal load, long-term condensate exposure, condensing/non condensing cycling resistance to UV radiation
26 Annex XC(informative)This annex is empty on purpose
27 Annex XD(informative)Example on calculation of common duct system for type C(11) boilers
28 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 ā€“ 400) kW
29 Annex ZC(informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 813/2013 L 239/136 aimed to be covered
30 Annex ZD(informative)Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EU) No 811/2013 L 239/1 aimed to be covered
32 Annex ZE(informative)Relationship between this European Standard and the essential requirements of Regulation (EU) 2016/426 of the European Parliament and of the Council of 9 March 2016 on appliances burning gaseous fuels and repealing Directive 2009/142/EC aimed to be covered

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BS EN 15502-2-3:2023
$189.07