BS EN 12977-5:2018 – TC:2020 Edition
$246.62
Tracked Changes. Thermal solar systems and components. Custom built systems – Performance test methods for control equipment
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 100 |
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 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) system 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 motor 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 functioning 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, electrical anodes are included in this document. 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 validity 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 heating systems, h) auxiliary heater equipment used in connection with e), f) and g).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 54 | undefined |
| 61 | 1 Scope |
| 62 | 2 Normative references |
| 63 | 3 Terms and definitions |
| 64 | 4 Symbols and abbreviations 5 Controller classification (including equipment classification) 5.1 Controller |
| 65 | 5.2 Sensor 5.3 Actuator |
| 66 | 6 Requirements 6.1 General requirements 6.1.1 Basic principles 6.1.2 Electrical safety 6.1.3 Freeze damage protection 6.1.4 Scald protection 6.1.5 High temperature protection for materials and components |
| 67 | 6.1.6 Lightning 6.2 Controllers, system clocks, timers and counters 6.2.1 General 6.2.2 Accuracy requirements for controllers 6.2.3 Accuracy requirements for system clocks, timers and counters 6.3 Sensors 6.3.1 Temperature sensors |
| 68 | 6.3.2 Irradiance sensors |
| 69 | 6.3.3 Other sensors |
| 70 | 6.4 Indicators 6.5 Actuators 6.5.1 Circulation pumps 6.5.2 Solenoid and motor valves |
| 71 | 6.5.3 Relays 6.6 Initial operation and commissioning 6.7 Documentation |
| 72 | 7 Testing of sensors 7.1 General 7.2 Testing of temperature sensors 7.2.1 General 7.2.2 Test equipment |
| 73 | 7.2.3 Installation of sensors 7.2.4 Testing the high-temperature resistance of temperature sensors |
| 74 | 7.2.5 Testing of the accuracy of temperature sensors |
| 76 | 7.3 Testing of solar irradiance sensors 7.3.1 General 7.3.2 Test equipment |
| 77 | 7.3.3 Installation of sensors 7.3.4 Testing sensor resistance against extreme operating conditions |
| 79 | 7.3.5 Testing of the accuracy of solar irradiance sensors |
| 80 | 7.4 Testing of further sensors and measuring equipment 8 Testing of system clocks, timers and counters 8.1 General 8.2 Test equipment |
| 81 | 8.3 Installation of system clocks, timers and counters 8.4 Test procedure |
| 82 | 8.5 Data processing and evaluation 8.5.1 General 8.5.2 System clocks and timers 8.5.3 Counters 9 Function testing of simple differential thermostats 9.1 General 9.2 Test equipment 9.2.1 General 9.2.2 Simulation box approach |
| 83 | 9.2.3 Tempering device/temperature calibrators or calibration baths approach 9.2.4 Input/output emulator approach |
| 84 | 9.3 Installation of differential thermostats and/or sensors 9.3.1 General 9.3.2 Differential thermostats 9.3.3 Sensors 9.4 Test procedure 9.4.1 General 9.4.2 Test procedure, simulation box approach |
| 85 | 9.4.3 Test procedure using tempering devices, temperature calibrators or calibration baths |
| 86 | 10 Function testing of multi-function controllers 10.1 General 10.2 Principle of multi-function controller testing |
| 87 | 10.3 Intellectual property of the manufacturer 10.4 Test facility for multi-function controller testing 10.4.1 General 10.4.2 Requirements for simulation of temperature sensors 10.4.3 Requirements on recording of controller response |
| 88 | 10.4.4 Test facility with input/output emulator |
| 89 | 10.5 Preliminary steps when using a test facility provided with an input/output emulator 10.5.1 General 10.5.2 Adaptation of the input/output emulator and testing/measuring devices |
| 90 | 10.5.3 Wiring of controller, input/output emulator and test site computer 10.5.4 Setting of controller parameters 10.5.5 Calibration of the input/output emulator |
| 91 | 10.6 Test procedure 10.6.1 General 10.6.2 Test sequences |
| 93 | 10.7 Data acquisition and processing 10.7.1 General 10.7.2 Data acquisition 10.7.3 Data processing |
| 94 | 11 Testing of actuators and additional control equipment 11.1 General 11.2 Determination of the electric power consumption of actuators and further components 11.3 Measuring the electric power of pumps with varying power consumption 12 Documentation 12.1 General 12.2 General information |
| 95 | 12.3 Marking 12.4 Information for the installer, assembly and installation 12.5 Information for the user, operation and maintenance |
| 96 | 13 Test report |
| 97 | Annex A (informative)Testing the electrical supply voltage dependence of control equipment A.1 General A.2 Test equipment A.3 Test procedure |
| 98 | A.4 Data processing |
