1、BS EN 12976-1:2017Thermal solar systems andcomponents Factory madesystemsPart 1: General requirementsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 12976-1:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12976-1:2017.
2、It supersedes BS EN 12976-1:2006 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RHE/25, Solar Heating.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the
3、necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 86106 2ICS 27.160Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard wa
4、s published under the authority of theStandards Policy and Strategy Committee on 28 February 2017.Amendments/Corrigenda issued since publicationDate Text affectedBS EN 12976-1:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12976-1 January 2017 ICS 27.160 Supersedes EN 12976-1:2006English V
5、ersion Thermal solar systems and components - Factory made systems - Part 1: General requirements Installations solaires thermiques et leurs composants -Installations prfabriques en usine - Partie 1 : Exigences gnrales Thermische Solaranlagen und ihre Bauteile - Vorgefertigte Anlagen - Teil 1: Allge
6、meine Anforderungen This European Standard was approved by CEN on 15 April 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and b
7、ibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the res
8、ponsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav R
9、epublic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROP
10、EN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12976-1:2017 EBS EN 12976-1:2017EN 12976-1:2017 (E) 2 Contents
11、 Page European foreword 4 Introduction 5 1 Scope 7 2 Normative references 7 3 Terms and definitions . 8 4 Requirements . 9 4.1 General 9 4.1.1 Safety . 9 4.1.2 Suitability for drinking water. 9 4.1.3 Water contamination 9 4.1.4 Testing of resistance towards mechanical load . 9 4.1.5 Freeze resistanc
12、e 9 4.1.6 Over temperature protection . 10 4.1.7 Reverse flow protection . 11 4.1.8 Pressure resistance 11 4.1.9 Electrical safety . 11 4.2 Materials 11 4.3 Components and pipework . 12 4.3.1 Collector . 12 4.3.2 Supporting frame 12 4.3.3 Piping 12 4.3.4 Heat Exchangers 13 4.3.5 Control system . 13
13、4.4 Safety equipment 13 4.4.1 Safety valves 13 4.4.2 Safety lines and expansion lines 13 4.4.3 Blow-off lines 13 4.4.4 Expansion vessels . 13 4.5 Resistance to external influences . 14 4.6 Documentation 14 4.6.1 General 14 4.6.2 Documents for the installer 14 4.6.3 Documents for the user 17 4.7 Ener
14、gy Labelling 18 4.8 System performance 19 Annex A (informative) Conformity assessment 20 Annex B (informative) Material combination with regard to corrosion . 21 Annex C (normative) System families. 24 C.1 System family, system subtype 24 C.2 Requirements for grouping different system configurations
15、 into one system family. 24 C.3 Testing requirements 27 C.4 Procedure 28 C.4.1 General 28 C.4.2 Evaluation of the validity of the test result 29 BS EN 12976-1:2017EN 12976-1:2017 (E) 3 C.4.3 Determination of the system parameters 30 C.4.4 Calculation of annual performance 32 Bibliography . 33 Tables
16、 Table 1 Division for factory made and custom built solar heating systems . 6 Table A.1 Guidelines for repetition of tests in case that components have been changed . 20 Table B.1 Material/fluid combination for closed systems 21 Table B.2 Material/fluid combination for closed systems 22 Table B.3 Ma
17、terial combinations for open systems (related to internal surfaces) . 23 Table B.4 Material combinations for open systems (related to internal surfaces) . 23 Figures Figure C.1 Principle of method II (DST) . 29 BS EN 12976-1:2017EN 12976-1:2017 (E) 4 European foreword This document (EN 12976-1:2017)
18、 has been prepared by Technical Committee CEN/TC 312 “Thermal solar systems and components”, the secretariat of which is held by ELOT. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2017, an
19、d conflicting national standards shall be withdrawn at the latest by July 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This d
20、ocument supersedes EN 12976-1:2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. Most significant changes in EN 12976-1:2017 and EN 12976-2:2017 since the 2006 editions of both parts: The first edition of the EN 1297
21、6 series was published in 2000. The standard series provided an important basis for the assessment of the performance as well as the reliability and durability of Factory made solar thermal systems. In the past 15 years or so, several important technological developments and changes of the framework
22、 conditions, such as e.g. the aspect of requiring “Energy Labelling”, the EN 12976 series underwent several important changes. The following modifications are the most important ones that have been implemented in this new edition of EN 12976-1: safety valves: new requirement that safety valves shall
23、 conform with EN 1489; resistance to external influences: consideration that the solar components can impact on the performance and durability of essential building elements, e.g. roofs and facades; labelling: harmonisation with ErP; Annex C (new): definition of system families; possible range of va
24、riations within one system type. EN 12976, Thermal solar systems and components Factory made systems, is currently composed with the following parts: Part 1: General requirements; Part 2: Test methods. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the fol
25、lowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
26、 Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12976-1:2017EN 12976-1:2017 (E) 5 Introduction Drinking water quality: In respect of potential adverse effects on the quality of water intended for human consumption, caus
27、ed by the product covered by this standard: a) this standard provides no information as to whether the product may be used without restriction inany of the Member States of the EU or EFTA;b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing nationalregula
28、tions concerning the use and/or the characteristics of this product remain in force.Factory Made and Custom Built solar heating systems: The standards EN 12976-1, EN 12976-2, EN 12977-1, EN 12977-2, EN 12977-3, EN 12977-4 and EN 12977-5 distinguish two categories of solar heating systems: Factory Ma
29、de solar heating systems and Custom Built solar heating systems. The classification of a system as Factory Made or Custom Built is a choice of the final supplier, in accordance with the following definitions. Factory Made solar heating systems are batch products with one trade name, sold as complete
30、 and ready to install kits, with fixed configurations. Systems of this category are considered as a single product and assessed as a whole. If a Factory Made Solar Heating System is modified by changing its configuration or by changing one or more of its components, the modified system is considered
31、 as a new system for which a new test report is necessary. Requirements and test methods for Factory Made solar heating systems are given in EN 12976-1 and EN 12976-2. Custom Built solar heating systems are either uniquely built, or assembled by choosing from an assortment of components. Systems of
32、this category are regarded as a set of components. The components are separately tested and test results are integrated to an assessment of the whole system. Requirements for Custom Built solar heating systems are given in EN 12977-1; test methods are specified in EN 12977-2, EN 12977-3, EN 12977-4
33、and EN 12977-5. Custom Built solar heating systems are subdivided into two categories: Large Custom Built systems are uniquely designed for a specific situation. In general HVAC engineers, manufacturers or other experts design them. Small Custom Built systems offered by a company are described in a
34、so-called assortment file, in which all components and possible system configurations, marketed by the company, are specified. Each possible combination of a system configuration with components from the assortment is considered as one Custom Built system. BS EN 12976-1:2017EN 12976-1:2017 (E) 6 Tab
35、le 1 shows the division for different system types: Table 1 Division for factory made and custom built solar heating systems Factory Made Solar Heating Systems (EN 129761 and EN 129762) Custom Built Solar Heating Systems (EN 129771, EN 129772 and EN 129773) Integrated collector storage systems for d
36、omestic hot water preparation Forced-circulation systems for hot water preparation and/or space heating, assembled using components and configurations described in an assortment file (mostly small systems) Thermosiphon systems for domestic hot water preparation Forced-circulation systems as batch pr
37、oduct with fixed configuration for domestic hot water preparation Uniquely designed and assembled systems for hot water preparation and/or space heating (mostly large systems) NOTE Forced circulation systems can be classified either as Factory Made or as Custom Built, depending on the market approac
38、h chosen by the final supplier. Both Factory Made and Custom Built systems are performance tested under the same set of reference conditions as specified in EN 129762:2017, Annex B, and in EN 129772:2012, Annex A. In practice, the installation conditions may differ from these reference conditions. A
39、 Factory Made system for domestic hot water preparation may have an option for space heating, however this option should not be used or considered during testing as a Factory Made system. BS EN 12976-1:2017EN 12976-1:2017 (E) 7 1 Scope This European Standard specifies requirements on durability, rel
40、iability and safety for Factory Made solar heating systems. The standard also includes provisions for evaluation of conformity to these requirements. Concept of system families is included, as well. The requirements in this standard apply to Factory Made solar systems as products. The installation o
41、f these systems including their integration with roofs or facades is not considered, but requirements are given for the documentation for the installer and the user to be delivered with the system (see also 4.6). External auxiliary water heating devices that are placed in series with the Factory Mad
42、e system are not considered to be part of the system. Cold water piping from the cold water grid to the system as well as piping from the system to an external auxiliary heater or to draw-off points is not considered to be part of the system. Piping between components of the Factory Made system is c
43、onsidered to be part of the system. Any integrated heat exchanger or piping for space heating option (see Introduction, last paragraph) is not considered to be part of the system. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are
44、 indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 806-1, Specifications for installations inside buildings conveying water for human consumption Part 1
45、: General EN 806-2, Specification for installations inside buildings conveying water for human consumption Part 2: Design EN 809, Pumps and pump units for liquids Common safety requirements EN 1151 (all parts), Pumps Rotodynamic pumps Circulation pumps having a rated power input not exceeding 200 W
46、for heating installations and domestic hot water installations EN 1489, Building valves Pressure safety valves Tests and requirements EN 1490, Building valves Combined temperature and pressure relief valves Tests and requirements EN 1991-1-1, Eurocode 1: Actions on structures Part 1-1: General actio
47、ns Densities, self-weight, imposed loads for buildings EN 1991-1-3:2003, Eurocode 1 Actions on structures Part 1-3: General actions - Snow loads EN 1991-1-4, Eurocode 1: Actions on structures Part 1-4: General actions - Wind actions EN 1993-1-1, Eurocode 3: Design of steel structures Part 1-1: Gener
48、al rules and rules for buildings EN 1999-1-1, Eurocode 9: Design of aluminium structures Part 1-1: General structural rules EN 12897, Water supply Specification for indirectly heated unvented (closed) storage water heaters EN 12975-1:2006+A1:2010, Thermal solar systems and components Solar collector
49、s Part 1: General requirements EN 129752, Thermal solar systems and components Solar collectors Part 2: Test methods BS EN 12976-1:2017EN 12976-1:2017 (E) 8 EN 12976-2:2017, Thermal solar systems and components Factory made systems Part 2: Test methods EN 12977-3, Thermal solar systems and components Custom built systems Part 3: Performance test methods for solar water heater stores EN 12977-5:2012, Thermal solar systems and components Custom built systems Part 5: Performance test
