BS EN 12977-2:2018 – TC:2020 Edition
$258.95
Tracked Changes. Thermal solar systems and components. Custom built systems – Test methods for solar water heaters and combisystems
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 112 |
This European Standard applies to small and large custom built solar heating systems with liquid heat transfer medium for residential buildings and similar applications, and gives test methods for verification of the requirements specified in EN 12977-1. This document also includes a method for thermal performance characterization and system performance prediction of small custom built systems by means of component testing and system simulation. Furthermore, this document contains methods for thermal performance characterization and system performance prediction of large custom built systems. This document applies to the following types of small custom built solar heating systems: – systems for domestic hot water preparation only; – systems for space heating only; – systems for domestic hot water preparation and space heating; – others (e.g. including cooling). This document applies to large custom built solar heating systems, primarily to solar preheat systems, with one or more storage vessels, heat exchangers, piping and automatic controls and with collector array(s) with forced circulation of fluid in the collector loop. This document does not apply to – systems with a store medium other than water (e.g. phase- change materials), – thermosiphon systems, – integral collector-storage (ICS) systems.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 60 | National foreword |
| 64 | European foreword |
| 65 | Introduction |
| 68 | 1 Scope 2 Normative references |
| 69 | 3 Terms and definitions 4 Symbols and abbreviations |
| 71 | 5 System classification 6 Test methods 6.1 Introduction 6.2 General 6.2.1 Suitability for drinking water 6.2.2 Water contamination 6.2.3 Freeze resistance 6.2.4 High-temperature protection |
| 72 | 6.2.5 Reverse circulation prevention 6.2.6 Pressure resistance 6.2.7 Electrical safety 6.3 Materials 6.4 Components and pipework 6.4.1 Collector and collector array 6.4.2 Supporting frame 6.4.3 Collector and other loops 6.4.4 Circulation pump 6.4.5 Expansion vessels |
| 73 | 6.4.6 Heat exchangers 6.4.7 Store 6.4.8 Pipework |
| 74 | 6.4.9 Thermal insulation 6.4.10 Control equipment 6.5 Safety equipment and indicators 6.5.1 Safety valves 6.5.2 Safety lines and expansion lines 6.5.3 Blow-off lines 6.5.4 Store isolation valve 6.5.5 Indicators |
| 75 | 6.6 Installation 6.6.1 Roof tightness 6.6.2 Lightning 6.6.3 Snow and wind loads 6.7 Initial operation, inspection and commissioning 6.8 Documentation 6.9 System performance (for small systems only) |
| 76 | 6.10 Water wastage (for small systems only) 7 Optional performance test of small custom built solar heating systems 7.1 General |
| 77 | 7.2 Test of the solar collector 7.3 Test of the water store(s) 7.4 Test of the control equipment 7.5 Determination of the hot water comfort 7.6 System simulation model |
| 78 | 7.7 Long-term performance prediction 7.7.1 General 7.7.2 Calculation procedure 7.7.3 Prediction of yearly system performance indicators |
| 79 | 7.7.4 Calculation of the net auxiliary energy demand and fractional energy savings for solar-plus-supplementary systems |
| 81 | 7.7.5 Calculation of the solar fraction for solar-only and preheat systems |
| 82 | 7.7.6 Calculation of the parasitic energy (for all system types) 7.8 Presentation of performance indicators |
| 83 | 8 Performance test report |
| 84 | Annex A (normative) Reference conditions for performance prediction |
| 92 | Annex B (normative) Additional information regarding the calculationof the fractional energy savings |
| 94 | Annex C (informative) Short-term system testing |
| 105 | Annex D (informative) Long-term monitoring |
| 107 | Annex E (informative) Determination of water wastage |
| 108 | Annex F (informative) Implementation for Ecodesign and Energy Labelling |
| 109 | Annex ZA (informative) Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EC) No 811/2013 aimed to be covered |
| 110 | Bibliography |
