Overview safety equipment
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© Solarbayer GmbH [210205]
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OVERVIEW SAFETY EQUIPMENT
1 Boiler return flow boost *
The opening temperature of the return flow boost should be about 70°C to protect against condensation
and corrosion and to reach a sufficient operating temperature.
2 Boiler safety group* (safety valve, pressure gauge and air vent)
The boiler must be protected with an approved and type-tested safety valve in accordance with DIN EN
ISO 4126-1:2013-12 with a response pressure of max. 3 bar.
The connecting line between the boiler and the safety valve must not be lockable.
3 Thermal drain safety device*
according to DIN EN 14597
The drain safety device must be connected to a pressurised tap water network in such a way that it cannot
be shut off. A pressure reducing valve is required for a cold water pressure of ≥ 6 bar.
4 Membrane pressure expansion vessel
according to DIN EN 13831
The dimensioning must be carried out in accordance with DIN EN 12828.
5 Cover valve*
6 Buffer tank*
We recommend the installation of a buffer stratified storage tank with a minimum storage volume of 55
litres per kW nominal heat output of the boiler, legal requirements and promotion rules must be observed.
*
The installation instructions of the producer must be observed.
An yearly inspection of the safety devices by a specialist company is mandatory.
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