1、April 2017 English price group 26No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 27.160!%dTf“2654967www.din.deDIN E
2、N 12976-2Thermal solar systems and components Factory made systems Part 2: Test methods;English version EN 129762:2017,English translation of DIN EN 12976-2:2017-04Thermische Solaranlagen und ihre Bauteile Vorgefertigte Anlagen Teil 2: Prfverfahren;Englische Fassung EN 129762:2017,Englische bersetzu
3、ng von DIN EN 12976-2:2017-04Installations solaires thermiques et leurs composants Installations prfabriques en usine Partie 2: Mthodes dessais;Version anglaise EN 129762:2017,Traduction anglaise de DIN EN 12976-2:2017-04SupersedesDIN EN 129762:200604www.beuth.deDocument comprises 77 pagesDTranslati
4、on by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.04.17 DIN EN 12976-2:2017-04 2 A comma is used as the decimal marker. National foreword This document (EN 12976-2:2017) has been prepared by Technical Committee CEN/TC 312 “Thermal solar systems
5、 and components” (Secretariat: ELOT, Greece). The responsible German body involved in its preparation was DIN-Normenausschuss Heiz- und Raumlufttechnik (DIN Standards Committee Heating and Ventilation Technology), Working Committee NA 041-01-56 AA “Solar systems (SpA CEN/TC 312 and ISO/TC 180)”. Ame
6、ndments This standard differs from DIN EN 12976-2:2006-04 as follows: a) major changes concerning the ErP Directive and the new mechanical test load have been made; b) Annex ZA (new) has been harmonized with EU Directive No 811/2013; c) Annex ZB (new) has been harmonized with EU Directive No 812/201
7、3; d) Annex ZC (new) has been harmonized with EU Directive No 814/2013. Previous editions DIN EN 12976-2: 2001-03, 2006-04 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12976-2 January 2017 ICS 27.160 Supersedes EN 12976-2:2006English Version Thermal solar systems and components - Factory mad
8、e systems - Part 2: Test methods Installations solaires thermiques et leurs composants -Installations prfabriques en usine - Partie 2 : Mthodes dessai Thermische Solaranlagen und ihre Bauteile - Vorgefertigte Anlagen - Teil 2: Prfverfahren This European Standard was approved by CEN on 15 April 2016.
9、 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 bibliographical references concerning such national standards may be obtained on
10、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 responsibility of a CEN member into its own language and notified to the CEN-CENELE
11、C 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 Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
12、 Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre
13、: 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 12976-2:2017 EEN 12976-2:2017 (E) 2 Contents Page European foreword . 6 Introduction 8 1 Scope . 10 2 Normative references . 10 3 Terms and de
14、finitions 10 4 Symbols and abbreviations 10 5 Testing 11 5.1 Freeze resistance 11 5.1.1 General . 11 5.1.2 Systems using antifreeze fluid . 11 5.1.3 Drain-back systems . 11 5.1.4 Drain-down systems . 12 5.1.5 Freeze protection and combined control functions 12 5.1.6 Other systems 12 5.2 Over tempera
15、ture protection 13 5.2.1 Purpose 13 5.2.2 Apparatus 13 5.2.3 Procedure 13 5.2.4 Reporting requirements 14 5.3 Pressure resistance . 14 5.3.1 Purpose 14 5.3.2 Apparatus 14 5.3.3 Safety precaution . 15 5.3.4 Procedure 15 5.3.5 Reporting requirements 16 5.4 Water contamination 16 5.5 Testing the resist
16、ance against mechanical load . 17 5.5.1 Purpose 17 5.5.2 Apparatus 17 5.5.3 Safety precaution . 17 5.5.4 Calculation procedure for the mechanical load 18 5.5.5 Procedure 20 5.5.6 Reporting requirements 20 5.6 Lightning protection . 21 5.7 Safety equipment 21 5.7.1 Safety valves . 21 5.7.2 Safety lin
17、es and expansion lines . 22 5.7.3 Blow-off lines . 22 5.8 Labelling 22 5.9 Thermal performance characterization 22 5.9.1 Introduction . 22 5.9.2 Test procedure 23 5.9.3 Prediction of yearly performance indicators . 24 5.10 Ability of solar-plus-supplementary systems to cover the load 31 DIN EN 12976
18、-2:2017-04 EN 12976-2:2017 (E) 3 5.10.1 General . 31 5.10.2 Boundary conditions for auxiliary heating . 31 5.10.3 Boundary conditions for daily load 32 5.10.4 Determination of the ability to cover the maximum daily load by means of testing the system 33 5.10.5 Determination of the ability to cover t
19、he maximum daily load by means of numerical simulations 33 5.10.6 Determination of the ability to cover the daily load defined by the European load profiles by means of numerical simulations . 33 5.10.7 Requirements for mixed water at 40 C . 34 5.11 Reverse flow protection . 36 5.12 Electrical safet
20、y . 36 Annex A (normative) Thermal performance presentation sheet 37 Annex B (normative) Reference conditions for performance prediction . 39 B.1 General . 39 B.2 Pipe diameter and insulation thickness . 42 B.3 Calculation of cold water temperature at reference location 43 B.4 Additional set of refe
21、rence conditions for annual performance calculations 44 B.5 Reference conditions for the performance of the auxiliary heater 47 Annex C (informative) Assessment of the ability of solar DHW systems to resist the extreme climatic conditions . 48 C.1 Indoor and outdoor test procedure for assessment of
22、the frost resistance of solar DWH systems with outdoor storage tank or system using heat transfer fluid with the risk of freezing . 48 C.1.1 Objective and applicability 48 C.1.2 Apparatus and mounting of the system 48 C.1.3 Test procedure 49 C.1.4 Test conditions Determination of the test conditions
23、 for freezing period . 50 C.1.5 Results 50 C.2 Indoor test procedure for assessment of the reliability of solar DWH systems in respect of overheating protection 51 C.2.1 Objective and applicability 51 C.2.2 Apparatus and mounting of the system 51 C.2.3 Test procedure 53 C.2.4 Test conditions 53 C.2.
24、5 Results 55 Annex D (informative) Ageing test for thermostatic valves . 57 D.1 General . 57 D.2 Test arrangement . 57 D.3 Test Procedure 58 D.4 Results 59 Annex E (informative) Lightning protection test for solar heating systems 60 E.1 Field of application. 60 E.2 Purpose 60 E.3 Requirements . 60 E
25、.4 Apparatus 61 E.5 Test procedure 61 E.5.1 Test conditions 61 E.5.2 Solar heating system installation 61 E.5.3 Separation distance St. 61 DIN EN 12976-2:2017-04 EN 12976-2:2017 (E) 4 E.5.4 Size of the bonding cable or strip . 61 E.5.5 Bridging between tank and supports . 61 E.5.6 Bridging between c
26、ollectors and supports . 62 E.5.7 Bridging between collectors and tank 62 E.5.8 Connecting terminal with Lightning Protection System (LPS) 62 E.5.9 Metal sheets covering parts of the solar heating system . 62 E.5.10 Heating effects due to lightning currents 62 E.5.11 Mechanical durability due to lig
27、htning mechanical loads . 62 E.6 Report . 62 E.7 Conclusions. 62 Annex F (informative) Lightning Protection testing sheet . 63 Annex G (normative) Reporting format in the framework of the EU Regulations CDR 811, 812 and 814 dated 2013 67 Annex ZA (informative) Relationship between this European Stan
28、dard and the energy labelling requirements of Commission Delegated Regulation (EU) No 811/2013 aimed to be covered 68 Annex ZB (informative) Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EU) No 812/2013 aimed to be covered 70 An
29、nex ZC (informative) Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 814/2013 aimed to be covered . 73 Bibliography . 75 Tables Table 1 Division for factory made and custom built solar heating systems . 9 Table 2 Selection of the performanc
30、e test method . 23 Table 3 Parameter a values for different load volumes 23 Table 4 Daily heat demand for load profiles . 28 Table 5 Adjustment factors . 30 Table 6 Load profile selection 30 Table A.1 Presentation of the system performance indicators for solar-plus-supplementary systems . 37 Table A
31、.2 Presentation of the system performance indicators for solar-only and solar preheat systems 38 Table B.1 Reference conditions for performance presentation . 40 Table B.2 Pipe diameter and insulation thickness for forced-circulation systems 42 Table B.3 Pipe diameter and insulation thickness for th
32、ermosiphon systems 42 Table B.4 Data for calculation of the cold water temperature at the reference locations 43 Table B.5 Reference conditions for performance presentation limited to the deviations from Table B.1 . 44 Table B.6 Monthly and average annual reference outside air temperatures for two c
33、limate zones in C . 46 DIN EN 12976-2:2017-04 EN 12976-2:2017 (E) 5 Table B.7 Monthly and average annual reference solar irradiation for two climate zones in kWh/m . 46 Table B.8 Specifications of the average and colder climate hourly data file according to Meteonorm 46 Table B.9 Reference condition
34、s the performance of the auxiliary heater, limited to the deviations from Table B.1 47 Table C.1 Test conditions 50 Table F.1 Size of bonding cable . 63 Table F.2 Size of metal cover sheets 63 Table F.3 Lightning protection testing sheet . 64 Table ZA.1 Correspondence between this European Standard
35、and Commission Delegated Regulation (EU) No 811/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to energy labelling of space heaters, combination heaters, packages of space heaters, temperature control and solar device and package
36、s of combination heater, temperature control and solar device and Commissions standardisation request M/535/C(2015) 2626 . 69 Table ZB.1 Correspondence between this European Standard and Commission Delegated Regulation (EU) No 812/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the Eu
37、ropean Parliament and of the Council with regard to energy labelling of water heaters, hot water storage tanks and packages of water heater and solar device and Commissions standardisation request M/534/C(2015) 2625 . 70 Table ZC.1 Correspondence between this European Standard and Commission Regulat
38、ion (EU) No 814/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for water heaters and hot water storage tanks and Commissions standardisation request M/534/C(2015) 2625 74 Figures Figure 1 Dimensions of the
39、system to be measured . 18 Figure 2 Force orthogonal to surface of system Side view 19 Figure 3 Energy balance for one-store solar-plus-supplementary systems (example) . 25 Figure 4 Energy balance for solar-only systems . 26 Figure 5 Energy balance for solar preheat systems 27 Figure A.1 Thermal per
40、formance presentation sheet 37 Figure C.1 Scheme of the test set-up . 52 Figure D.1 Test arrangement for thermostatic valve test . 58 DIN EN 12976-2:2017-04 EN 12976-2:2017 (E) 6 European foreword This document (EN 12976-2:2017) has been prepared by Technical Committee CEN/TC 312 “Thermal solar syst
41、ems 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, and conflicting national standards shall be withdrawn at the latest by Jul
42、y 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 document supersedes EN 12976-2:2006. This document has been prepared unde
43、r a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annexes ZA, ZB or ZC, which are an integral part of this document. Most significant changes in E
44、N 12976-1:2017 and EN 12976-2:2017 since the 2006 editions of both parts: The first edition of the EN 12976 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 syst
45、ems. In the past 15 years or so, several important technological developments and changes of the framework 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 b
46、een implemented in this new edition of EN 12976-2: main changes related to ErP and the new mechanical load test; Annex ZA (new): harmonisation with Regulation (EC) No 811/2013; Annex ZB (new): harmonisation with Regulation (EC) No 812/2013: Annex ZC (new): harmonisation with Regulation (EC) No 814/2
47、013. It is worth to notice that, based on these changes and developments, the need for the elaboration of a future strategy of the structure of the EN 12976 series is foreseen. EN 12976, Thermal solar systems and components Factory made systems, is currently composed with the following parts: Part 1
48、: General requirements; Part 2: Test methods. DIN EN 12976-2:2017-04 EN 12976-2:2017 (E) 7 According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Cz
49、ech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic 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 the United Kingdom. DIN EN 12976-2:2017-04 EN 12976-2:2017 (E) 8 Introduction Drinking water quality:
