1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12977-1:2012Thermal solar systems andcomponents Custom builtsystemsPart 1: General requirements for solar waterheaters and combisystemsBS EN 12977-1:2012 BRITISH STANDARDNa
2、tional forewordThis British Standard is the UK implementation of EN 12977-1:2012.It supersedes DD CEN/TS 12977-1:2010 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RHE/25, Solar Heating.A list of organizations represented on this committee can beobtai
3、ned on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 75646 7ICS 27.160; 97.100.99Complianc
4、e with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2012.Amendments issued since publicationDate Text affectedBS EN 12977-1:2012EUROPEAN STANDARD NORME EUROPENNE EUROP
5、ISCHE NORM EN 12977-1 April 2012 ICS 27.160 Supersedes CEN/TS 12977-1:2010English Version Thermal solar systems and components - Custom built systems - Part 1: General requirements for solar water heaters and combisystems Installations solaires thermiques et leurs composants - Installations assemble
6、s faon - Partie 1: Exigences gnrales pour chauffe-eau solaires et installations solaires combines Thermische Solaranlagen und ihre Bauteile - Kundenspezifisch gefertigte Anlagen - Teil 1: Allgemeine Anforderungen an Solaranlagen zur Trinkwassererwrmung und solare Kombianlagen This European Standard
7、was approved by CEN on 19 February 2012. 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 suc
8、h 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 responsibility of a CEN member into its own
9、 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy
10、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17,
11、 B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12977-1:2012: EBS EN 12977-1:2012EN 12977-1:2012 (E) 2 Contents Page Foreword 4Introduction .51 Scope 72 Normative references 73 Terms and definitions .84 Symbol
12、s and abbreviations . 105 System classification . 105.1 Small custom built systems 105.2 Large custom built systems 106 Requirements 116.1 Introduction . 116.2 General . 116.2.1 Suitability for drinking water . 116.2.2 Water contamination 116.2.3 Freeze resistance 116.2.4 High-temperature protection
13、 . 116.2.5 Reverse circulation prevention . 126.2.6 Pressure resistance 126.2.7 Electrical safety. 126.3 Materials 126.4 Components and pipework 136.4.1 Collector and collector array . 136.4.2 Supporting frame 136.4.3 Collector and other loops 136.4.4 Circulation pumps 136.4.5 Expansion vessels 136.
14、4.6 Heat exchangers . 146.4.7 Water store(s) 146.4.8 Pipework 156.4.9 Thermal insulation 156.4.10 Control equipment 156.5 Safety equipment and indicators 166.5.1 Safety valves . 166.5.2 Safety lines and expansion lines 166.5.3 Blow-off lines 166.5.4 Store isolation valve . 166.5.5 Indicators . 166.6
15、 Installation . 176.6.1 Roof tightness . 176.6.2 Lightning 176.6.3 Snow and wind loads . 176.7 Initial operation and commissioning 176.8 Documentation 176.8.1 General . 176.8.2 Assortment file for small systems 186.8.3 Documentation for small systems 186.8.4 Documentation for large systems . 186.9 S
16、ystem performance 19BS EN 12977-1:2012EN 12977-1:2012 (E) 3 6.10 Water wastage . 19Bibliography 20Tables Table 1 Division for factory made and custom built solar heating systems . 6Table 2 Classes of small custom built systems according to their purpose 10Table 3 Classification of large systems . 11
17、BS EN 12977-1:2012EN 12977-1:2012 (E) 4 Foreword This document (EN 12977-1:2012) 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 pu
18、blication of an identical text or by endorsement, at the latest by October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those
19、identified above. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes CEN/TS 12977-1:2010. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement th
20、is European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerlan
21、d, Turkey and the United Kingdom. BS EN 12977-1:2012EN 12977-1:2012 (E) 5 Introduction a) Drinking water quality In respect of potential adverse effects on the quality of drinking water intended for human consumption caused by the product covered by this document, it should be noted that 1) this doc
22、ument provides no information as to whether the product may be used without restriction in any of the Member States of the EU or EFTA, 2) while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in
23、 force. b) Factory made and custom built solar heating systems 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: 1) factory made solar heating systems; and 2) custom built solar heating systems. The classificati
24、on of a system as factory made or custom built is a choice of the final supplier, in accordance with the following definitions. 1) Factory made solar heating systems are batch products with one trade name, sold as complete and ready to install kits, with fixed configurations. Systems of this categor
25、y 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 as a new system. Requirements and test methods for factory made solar heating
26、 systems are given in EN 12976-1 and EN 12976-2. 2) Custom built solar heating systems are either uniquely built or assembled by choosing from an assortment of components. Systems of this category are regarded as a set of components. The components are separately tested and test results are integrat
27、ed 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 12977-1, EN 12977-2, EN 12977-3, EN 12977-4 and EN 12977-5. Custom built solar heating systems are subdivided into two categories: i) large custom bu
28、ilt systems are uniquely designed for a specific situation. In general, they are designed by HVAC engineers, manufacturers or other experts; ii) small custom built systems offered by a company are described in a so-called assortment file, in which all components and possible system configurations, m
29、arketed by the company, are specified. Each possible combination of a system configuration with components from the assortment is considered as one custom built system. Table 1 shows the division for different system types. BS EN 12977-1:2012EN 12977-1:2012 (E) 6 Table 1 Division for factory made an
30、d custom built solar heating systems Factory made solar heating systems (EN 12976-1 and EN 12976-2) Custom built solar heating systems (EN 12977-1, EN 12977-2, EN 12977-3, EN 12977-4 and EN 12977-5) Integral collector-storage systems for domestic hot water preparation Forced circulation systems for
31、hot water preparation and/or space heating/cooling, assembled using components and configurations described in a documentation file (mostly small systems) Thermosiphon systems for domestic hot water preparation Forced circulation systems as batch product with fixed configuration for domestic hot wat
32、er preparation Uniquely designed and assembled systems for hot water preparation and/or space heating/cooling (mostly large systems) NOTE 1 Forced circulation systems can be classified either as factory made or as custom built, depending on the market approach chosen by the final supplier. NOTE 2 Bo
33、th factory made and custom built systems for domestic hot water preparation are performance tested under the same set of basic reference conditions as specified in EN 12976-2:2006, Annex B and in EN 12977-2:2012, Annex A. In practice, the installation conditions may differ from these reference condi
34、tions. NOTE 3 Solar heating systems for both heating and cooling can so far not be performance tested; if the cooling option is not considered then the solar heating can be performance tested as a space heating system. BS EN 12977-1:2012EN 12977-1:2012 (E) 7 1 Scope This European Standard specifies
35、requirements on durability, reliability and safety of small and large custom built solar heating and cooling systems with liquid heat transfer medium in the collector loop for residential buildings and similar applications. This document also contains requirements on the design process of large cust
36、om built systems. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (i
37、ncluding any amendments) applies. EN 253, District heating pipes Preinsulated bonded pipe systems for directly buried hot water networks Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene EN 307, Heat exchangers Guidelines to prepare installation, o
38、perating and maintenance instructions required to maintain the performance of each type of heat exchangers EN 806-1, Specifications for installations inside buildings conveying water for human consumption Part 1: General EN 806-2, Specification for installations inside buildings conveying water for
39、human consumption Part 2: Design EN 809, Pumps and pump units for liquids Common safety requirements EN 1151-1, Pumps Rotodynamic pumps Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations Part 1: Non-automatic circulation pu
40、mps, requirements, testing, marking EN 1489, Building valves Pressure safety valves Tests and requirements EN 1490, Building valves Combined temperature and pressure relief valves Tests and requirements EN 1991-1-3, Eurocode 1 Actions on structures Part 1-3: General actions Snow loads EN 1991-1-4, E
41、urocode 1: Actions on structures Part 1-4: General actions Wind actions EN 1993-1-1, Eurocode 3: Design of steel structures Part 1-1: General rules and rules for buildings EN 1999-1-1, Eurocode 9: Design of aluminium structures Part 1-1: General structural rules EN 12828, Heating systems in building
42、s Design for water-based heating systems EN 12975-1:2006, Thermal solar systems and components Solar collectors Part 1: General Requirements EN 12975-2, Thermal solar systems and components Solar collectors Part 2: Test methods EN 12976-1:2006, Thermal solar systems and components Factory made syste
43、ms Part 1: General requirements BS EN 12977-1:2012EN 12977-1:2012 (E) 8 EN 12977-2:2012, Thermal solar systems and components Custom built systems Part 2: Test methods for solar water heaters and combisystems EN 12977-3, Thermal solar systems and components Custom built systems Part 3: Performance t
44、est methods for solar water heater stores EN 12977-4, Thermal solar systems and components Custom built systems Part 4: Performance test methods for solar combistores EN 12977-5, Thermal solar systems and components Custom built systems Part 5: Performance test methods for control equipment EN 60335
45、-1, Household and similar electrical appliances Safety Part 1: General requirements (IEC 60335-1, modified) EN 60335-2-21, Household and similar electrical appliances Safety Part 2-21: Particular requirements for storage water heaters (IEC 60335-2-21) EN 62305-1, Protection against lightning Part 1:
46、 General principles (IEC 62305-1) EN ISO 9488:1999, Solar energy Vocabulary (ISO 9488:1999) ISO 9459-1:1993, Solar heating Domestic water heating systems Part 1: Performance rating procedure using indoor test methods ISO/TR 10217, Solar energy Water heating systems Guide to material selection with r
47、egard to internal corrosion 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12975-1:2006, EN 12976-1:2006 and EN ISO 9488:1999 and the following apply. 3.1 assortment complete list of components (collectors, stores, controllers, pumps, etc.) which a c
48、ompany offers for its solar heating systems Note 1 to entry: For the purpose of this document, the assortment is restricted to components used for small custom built solar heating systems marketed by a company. 3.2 assortment file technical documentation file for small custom built systems of a comp
49、any, which includes: the complete assortment for small custom built systems; the complete description of all system configurations; the complete description of all marketed combinations of system configurations and components including the component dimensions and number of units; further technical information 3.3 blow-off line connecting line between the outlet o
