1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12977-5:2012Thermal solar systems andcomponents Custom builtsystemsPart 5: Performance test methods forcontrol equipmentBS EN 12977-5:2012 BRITISH STANDARDNational foreword
2、This British Standard is the UK implementation of EN 12977-5:2012.It supersedes DD CEN/TS 12977-5:2010 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RHE/25, Solar Heating.A list of organizations represented on this committee can beobtained on request
3、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 75649 8ICS 27.160; 97.100.99Compliance with a Britis
4、h 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 12977-5:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1
5、2977-5 April 2012 ICS 27.160 Supersedes CEN/TS 12977-5:2010English Version Thermal solar systems and components - Custom built systems - Part 5: Performance test methods for control equipment Installations solaires thermiques et leurs composants - Installations assembles faon - Partie 5: Mthodes des
6、sai pour chauffe-eau solaires et installations solaires combines Thermische Solaranlagen und ihre Bauteile - Kundenspezifisch gefertigte Anlagen - Teil 5: Prfverfahren fr die Regeleinrichtungen This European Standard was approved by CEN on 19 February 2012. CEN members are bound to comply with the C
7、EN/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 application to the CEN-CENELEC Management C
8、entre 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-CENELEC Management Centre has the same status as
9、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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roma
10、nia, 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, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means r
11、eserved worldwide for CEN national Members. Ref. No. EN 12977-5:2012: EBS EN 12977-5:2012EN 12977-5:2012 (E) 2 Contents Page Foreword 4Introduction .51 Scope 62 Normative references 73 Terms and definitions .84 Symbols and abbreviations 95 Controller classification (including equipment classificatio
12、n) .95.1 Controller 95.2 Sensor 105.3 Actuator . 106 Requirements 116.1 General requirements . 116.2 Controllers, system clocks, timers and counters . 126.3 Sensors 126.4 Indicators . 156.5 Actuators . 156.6 Initial operation and commissioning 166.7 Documentation 167 Testing of sensors 177.1 General
13、 . 177.2 Testing of temperature sensors 177.3 Testing of solar irradiance sensors 217.4 Testing of further sensors and measuring equipment . 258 Testing of system clocks, timers and counters 258.1 General . 258.2 Test equipment . 258.3 Installation of system clocks, timers and counters 258.4 Test pr
14、ocedure 268.5 Data processing and evaluation 269 Function testing of simple differential thermostats 279.1 General . 279.2 Test equipment . 279.3 Installation of differential thermostats and/or sensors 299.4 Test procedure 2910 Function testing of multi-function controllers . 3110.1 General . 3110.2
15、 Principle of multi-function controller testing . 3210.3 Intellectual property of the manufacturer 3210.4 Test facility for multi-function controller testing . 3210.5 Preliminary steps when using a test facility provided with an input/output emulator 3410.6 Test procedure 3710.7 Data acquisition and
16、 processing 3911 Testing of actuators and additional control equipment . 4011.1 General . 4011.2 Determination of the electric power consumption of actuators and further components . 4011.3 Measuring the electric power of pumps with varying power consumption . 40BS EN 12977-5:2012EN 12977-5:2012 (E)
17、 3 12 Documentation 4012.1 General . 4012.2 General information 4012.3 Marking . 4012.4 Information for the installer, assembly and installation 4112.5 Information for the user, operation and maintenance . 4113 Test report 42Annex A (informative) Testing the electrical supply voltage dependence of c
18、ontrol equipment 43A.1 General . 43A.2 Test equipment 43A.3 Test procedure . 43A.4 Data processing . 44Bibliography 45Figures Figure 1 Elevation of an oven-arrangement to test temperature sensor accuracy, high-temperature resistance and differential thermostat functions . 18Figure 2 Example of a sim
19、ulation box for testing differential thermostats of solar heating systems 28Figure 3 Schematic of a controller test facility including an input/output emulator 34Figure 4 Flow chart of steps when using a test facility provided with an input/output emulator according to Figure 3 35Tables Table 1 Clas
20、sification of controllers for solar heating systems . 9Table 2 Common sensors for solar heating systems 10Table 3 Most common actuators for solar heating systems . 10Table 4 Accuracy of system clocks, timers and counters . 12Table 5 Accuracy requirements of temperature sensors for solar heating syst
21、ems . 13Table 6 Requirements of high-temperature resistance of temperature sensors 13Table 7 Climate test conditions for solar irradiance sensors capability to resist to high irradiance . 14Table 8 Climate test conditions for solar irradiance sensors capability to resist to high surrounding temperat
22、ures . 14Table 9 Accuracy requirements for solar irradiance sensors . 14Table 10 Total maximum electrical power of the pump(s) . 15Table 11 Temperatures to be used for the accuracy test 20Table 12 Minimum climate test conditions for exposure and for external shock test . 23Table 13 Irradiance levels
23、 to test the accuracy of solar irradiance sensors . 24Table 14 Examples of control algorithms and corresponding test sequences for multi-function controllers 38BS EN 12977-5:2012EN 12977-5:2012 (E) 4 Foreword This document (EN 12977-5:2012) has been prepared by Technical Committee CEN/TC 312 “Therma
24、l 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 October 2012, and conflicting national standards shall be withdrawn at th
25、e 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. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes CEN/TS 12977-5:2010. According to t
26、he CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi
27、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12977-5:2012EN 12977-5:2012 (E) 5 Introduction One purpose of this document is to define how to check that a controller is behaving as
28、 it is intended when in combination with associated equipment (e.g. sensors, pumps and other actuators). In addition, function testing of differential thermostats and so-called “multi-function“ controllers are described in order to determine switch on and switch off temperature differentials as well
29、 as control algorithms where dependent on temperature differences, temperature levels or operating conditions of the system. For all functions and operations, it should be tested and documented, whether the controller and control equipment comply with the manufacturers guidance. In addition, the cap
30、ability for all sensors to resist extreme operating conditions and to determine any significant drift in accuracy caused by this should be tested. The energy consumption of the controller and the associated control equipment should be documented, e.g. actuators. If the electrical supply is different
31、 from the mains supply this should be documented, e.g. PV powered pumps. Performance predictions for the associated system that the control equipment belongs to are considered. For the determination of the component parameters according to the CTSS method, as specified in EN 12977-2, a detailed inve
32、stigation of all relevant algorithms, features and parameters controlling the system is relevant. NOTE The most widely used control equipment for solar heating systems is described in EN 12977-5. For control equipment not widely used in solar heating systems or auxiliary heaters, if part of the syst
33、em, accompanying standards should be applied if available. In respect of potential adverse effects to human health or life (e.g. drinking water quality) caused by the products covered by EN 12977-5 it should be noted that: this document provides no information as to whether the product may be used w
34、ithout restriction in any of the Member States of the EU or EFTA; while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. EN 12976-1, EN 12976-2 as well as EN 12977-1, EN 12977-2, EN 129
35、77-3, and EN 12977-4 distinguish two categories of solar heating systems: 1) factory made solar heating systems; 2) custom built solar heating systems. As defined in EN 12977-1, the classification of a system as factory made or custom built is a choice of the final supplier. Custom built solar heati
36、ng systems are subdivided into two categories: i) large custom built systems are uniquely designed for a specific situation. 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, marketed by the c
37、ompany, are specified; BS EN 12977-5:2012EN 12977-5:2012 (E) 6 1 Scope This European Standard specifies performance test methods for control equipment. Furthermore, this document contains requirements on accuracy, durability and reliability of control equipment. The tests described in this document
38、are limited to electrically activated components delivered with or for the system by the final supplier. For the purposes of this document controller and control equipment for solar heating systems and auxiliary heaters, if part of the system, are restricted to the following: a) Controllers as: 1) s
39、ystem clocks, timers and counters; 2) differential thermostats; 3) multi-function controllers. b) Sensors as: 1) temperature sensors; 2) irradiance sensors (for short wave radiation); 3) pressure sensors; 4) level sensors; 5) flow meters; 6) heat meters. c) Actuators as: 1) pumps; 2) solenoid and mo
40、tor valves; 3) relays. d) Combinations of controllers, sensors and actuators listed above. An additional objective of the procedures described in this document is to verify control algorithms and, together with the accuracy of sensors, to determine control parameters. In addition to verifying the fu
41、nctioning of a controller, its equipment and actuators, the determined parameters may be used for numerical system simulations. Typically, electrical anodes are not part of the control equipment and are not controlled by the control equipment. However, because they are electrical appliances, electri
42、cal anodes are included in this document. BS EN 12977-5:2012EN 12977-5:2012 (E) 7 This document is valid for control equipment of solar heating systems for the purpose of hot water preparation and/or space heating. If the solar system is connected to or part of a conventional heating system, the val
43、idity is extended to the entire system. In combination with the standards EN 12976-1, EN 12976-2 as well as EN 12977-1, EN 12977-2, EN 12977-3 and EN 12977-4, this document is valid for e) factory made solar heating systems, f) small custom built solar heating systems, g) large custom built solar he
44、ating systems, h) auxiliary heater equipment used in connection with e), f) and g). 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 un
45、dated references, the latest edition of the referenced document (including any amendments) applies. 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 pum
46、ps, requirements, testing, marking 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 systems Part 1: General requirements EN 12977-1:2012, Thermal solar systems and components Custom built systems
47、 Part 1: General requirements for solar water heaters and combisystems EN 60038, CENELEC standard voltages (IEC 60038) EN 60255 (all parts), Measuring relays and protection equipment (IEC 60255, all parts) EN 60335-1, Household and similar electrical appliances Safety Part 1: General requirements (I
48、EC 60335-1) EN 60335-2-21, Household and similar electrical appliances Safety Part 2-21: Particular requirements for storage water heaters (IEC 60335-2-21) EN 60730 (all parts), Automatic electrical controls for household and similar use (IEC 60730, all parts) EN 62305-3, Protection against lightning Part 3: Physical damage to structures and life hazard (IEC 62305-3) EN ISO 4413, Hydraulic fluid power - General rules and safety requirements for systems and their components (ISO 4413) EN ISO 9488:1999, Solar energy Vocabulary (ISO 9488:1
