26/30497547 DC

This standard 26/30497547 DC BS EN 12897-1 Water supply - Indirectly heated unvented (closed) hot water storage tanks is classified in these ICS categories:

• 91.140.65 Water heating equipment

This document specifies the general specifications, constructional requirements and common test methods for indirectly heated, unvented (closed) hot water storage tanks of up to 2 000 l volume suitable for connection to a water supply at a pressure between 0,05 MPa and 1,0 MPa (0,5 bar and 10 bar), and fitted with control and safety devices designed to prevent the temperature of the stored drinking water from reaching 95 °C. Whilst storage water heaters intended primarily for direct heating are not covered by this document, it includes the possible provision of backup immersion heaters.