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8
4.4
Draining
4.5
Cleaning
GB
The domestic water is drained after closing the shut-off valve in the cold water supply line
via the drain valve of the safety valve combination while simultaneously opening all hot
water valves of the connected functional fittings.
Required cleaning intervals are different depending on the water quality and the
temperature of the storage tank. A yearly interval is recommended.
IMPORTANT: With a drinking water hardness of over 20° dH, a yearly cleaning interval
is a prerequisite for preserving any warranty claims.
The cleaning is done through the flange aperture. The enamelled internal surface prevents
limestone formation as far as possible and allows for a quick cleaning of lime deposits by
means of a sharp water jet. Incrustations may only be crushed with a wooden stick before
the flushing. Sharp and/or metal objects may not be used for cleaning as there is the risk
of damaging the tank or the enamel.
IMPORTANT: After the cleaning, the connections have to be checked for tightness again
before and after the reheating and they have to be retightened if necessary. We assume
no liability for damages caused by water.
Enamelled domestic water storage tanks
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