Water supply - Specification for indirectly heated unvented (closed) storage water heaters

This European Standard specifies the performance requirements and methods of test for indirectly heated, unvented (closed) storage water heaters of up to 1000 l capacity suitable for connection to a water supply at a pressure between 5 Mpa and 100 Mpa (0,5 and 10 bar), and fitted with control and safety devices designed to prevent the operating temperature of the stored drinking water from exceeding 100 °C.
Whilst storage water heaters intended primarily for direct heating are not covered by this standard, it does allow the provision of electric heating elements for auxiliary use.

Wasserversorgung - Bestimmung für mittelbar beheizte, unbelüftete (geschlossene) Speicher­Wassererwärmer

Diese Europäische Norm legt die Leistungsanforderungen an und Prüfverfahren für mittelbar beheizte, unbelüftete (geschlossene) Speicher Wassererwärmer bis zu 1 000 l Volumen fest, die für den Anschluss an ein Wasserversorgungssystem bei einem Druck zwischen 0,05 MPa und 1,0 MPa (0,5 bar und 10 bar) geeignet und mit Regel  und Sicherheitseinrichtungen ausgerüstet sind, die so ausgelegt sind, dass die Betriebstemperatur des gespeicherten Trinkwassers 100 °C nicht übersteigt.
Obwohl diese Norm keine Speicher Wassererwärmer behandelt, die hauptsächlich für direkte Erwärmung vorgesehen sind, lässt sie die Bereitstellung von elektrischen Heizelementen zu Hilfszwecken zu.

Alimentation en eau - Prescriptions pour réservoirs de stockage d'eau chaude à chauffage indirect sans mise à l'air libre (fermés)

La présente Norme européenne définit les prescriptions de performance et les méthodes d'essai applicables aux préparateurs d'eau chaude sanitaire non ouverts à l'air libre (chauffe-eau fermés) d'une capacité maximale de 1 000 l destinés à être raccordés à un réseau d'alimentation en eau à une pression comprise entre 0,05 MPa et 1,0 MPa (0,05 bar à 1,0 bar), équipés des dispositifs de commande et de sécurité conçus pour éviter que la température de l'eau chaude stockée ne dépasse 100 °C.
Bien que la présente norme ne s'applique pas aux ballons à échangeur, celle-ci permet la mise à disposition d'éléments de chauffe électrique à usage auxiliaire.

Oskrba z vodo – Specifikacija za posredno ogrevane neprezračevane (zaprte) akumulacijske grelnike vode

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Water supply - Specification for indirectly heated unvented (closed) storage water heatersAlimentation en eau - Prescriptions pour réservoirs de stockage d'eau chaude a chauffage indirect sans mise a l'air libre (fermés)Wasserversorgung - Bestimmung für mittelbar beheizte, unbelüftete (geschlossene) Speicher­WassererwärmerTa slovenski standard je istoveten z:EN 12897:2006SIST EN 12897:2006en91.140.65Oprema za ogrevanje vodeWater heating equipmentICS:SLOVENSKI
STANDARDSIST EN 12897:200601-oktober-2006

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12897July 2006ICS 91.140.65 English VersionWater supply - Specification for indirectly heated unvented(closed) storage water heatersAlimentation en eau - Prescriptions pour réservoirs destockage d'eau chaude à chauffage indirect sans mise àl'air libre (fermés)Wasserversorgung - Bestimmung für mittelbar beheizte,unbelüftete (geschlossene) Speicher­WassererwärmerThis European Standard was approved by CEN on 13 April 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12897:2006: E

EN 12897:2006 (E) 2 Contents Page Foreword.4 Introduction.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Requirements.7 4.1 Effect of material on water quality and hygiene of drinking water.7 4.2 Constructional requirements.7 4.2.1 Inspection access.7 4.2.2 Draining.7 4.3 Temperature control.8 4.4 Mechanical resistance and stability.8 4.4.1 Pressure resistance of water storage vessel.8 4.4.2 Pressure resistance of primary heater.8 4.4.3 Durability.8 4.4.4 Leakage test on double-walled primary heater.9 4.5 Safety equipment.10 4.5.1 General.

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