EN 12976-1:2017

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Thermische Solaranlagen und ihre Bauteile - Vorgefertigte Anlagen - Teil 1: Allgemeine AnforderungenInstallations solaires thermiques et leurs composants - Installations préfabriquées en usine - Partie 1: Exigences généralesThermal solar systems and components - Factory made systems - Part 1: General requirements27.160Solar energy engineeringICS:Ta slovenski standard je istoveten z:EN 12976-1:2017SIST EN 12976-1:2017en,fr,de01-april-2017SIST EN 12976-1:2017SLOVENSKI
STANDARDSIST EN 12976-1:20061DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12976-1
January
t r s y ICS
t yä s x r Supersedes EN
s t { y xæ sã t r r xEnglish Version
Thermal solar systems and components æ Factory made systems æ Part
sã General requirements Installations solaires thermiques et leurs composants æInstallations préfabriquées en usine æ Partie
s ã Exigences générales
Thermische Solaranlagen und ihre Bauteile æ Vorgefertigte Anlagen æ Teil
sã Allgemeine Anforderungen This European Standard was approved by CEN on
s w April
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t { y xæ sã t r s y ESIST EN 12976-1:2017

Conformity assessment . 20 Annex B (informative)
Material combination with regard to corrosion . 21 Annex C (normative)
System families. 24 C.1 System family, system subtype . 24 C.2 Requirements for grouping different system configurations into one system family. 24 C.3 Testing requirements . 27 C.4 Procedure . 28 C.4.1 General. 28 C.4.2 Evaluation of the validity of the test result. 29 SIST EN 12976-1:2017

Tables Table 1 — Division for factory made and custom built solar heating systems . 6 Table A.1 — Guidelines for repetition of tests in case that components have been changed . 20 Table B.1 — Material/fluid combination for closed systems . 21 Table B.2 — Material/fluid combination for closed systems . 22 Table B.3 — Material combinations for open systems (related to internal surfaces) . 23 Table B.4 — Material combinations for open systems (related to internal surfaces) . 23
Figures Figure C.1 — Principle of method II (DST) . 29
NOTE Forced circulation systems can be classified either as Factory Made or as Custom Built, depending on the market approach chosen by the final supplier. Both Factory Made and Custom Built systems are performance tested under the same set of reference conditions as specified in EN 12976–2:2017, Annex B, and in EN 12977–2:2012, Annex A. In practice, the installation conditions may differ from these reference conditions. A Factory Made system for domestic hot water preparation may have an option for space heating, however this option should not be used or considered during testing as a Factory Made system. SIST EN 12976-1:2017

In EN 12976–2:2017, Annex E, a test method based on EN 62305–3 is given for solar domestic water heating systems. d) If a support frame that is normally mounted outdoors is part of the system, the maximum values of sk (snow load) and qp (peak velocity pressure) according to EN 1991-1-3, EN 1991-1-4 and a statement that the system may only be installed in locations with lower values of sk and qp, should be provided. Both the permissible and the maximum positive and negative pressure (wind and snow load) for both the collector and supporting frame should be declared. Recommendations for the calculation of design loads: 1) The calculation should be done by a Structural Engineer or a specialist with equivalent skill; 2) The calculation should be done in accordance with the relevant Eurocodes and National Annexes; 3) Self-weight shall be calculated in accordance with EN 1991-1-1 / NA; 4) Minimum imposed roof loads shall be calculated in accordance with the snow load map featured in EN 1991-1-3:2003, Annex C; and 5) Wind loads shall be calculated in accordance with EN 1991-1-4 / NA; e) Method for pipework connections: 1) design and Sizing of Solar Thermal System (collectors, pumps, store tanks, etc.) 2) internal space and access requirements (cylinder, pumps, controls, store, safety vessels, etc.); f) Types and sizes of the safety and security devices and their draining: the assembly instruction shall demand that any pressure relief valves from which steam can escape during normal or stagnation conditions shall be mounted, in such a way that no injuries, harm or damage can be caused by the escape of steam. When the system has a provision to drain an amount of drinking water as a protection against overheating, the hot water drain shall be constructed in such a way that no damage is done to the system or any other materials in the building by the drained hot water; g) The necessary control and safety devices including the wiring diagram, including the need for: 1) assembly instructions for each system design and configuration; 2) solar pipework layout (shortest distances, fall, supports, fixing intervals, penetrations, contact, protection from high temperature, etc.); 3) if required. a thermostatic mixing valve which limits the draw-off temperature to 60 °C, according to 4.1.5.2 and is in accordance with EN 15092; 4) adequate means for preventing backflow from all circuits to drinking main supplies; h) Reviewing, filling and starting up of the system; i) Commissioning of the system: 1) operational/functioning details of solar thermal system; SIST EN 12976-1:2017
...