Corrosion Protection; Flanged Aperture - OEG 516008055 Notice De Montage Et D'emploi

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4.3

Corrosion protection

4.4

Flanged aperture

GB
All combined and heat pump combination storage tanks are doubly enamelled on the
drinking water side in accordance with DIN 4753-3 and are supplied including one
pre-assembled magnesium protective anode. According to DIN 4753-6, magnesium
protective anodes must be tested yearly and replaced every two years.
Optionally, maintenance-free impressed-current anodes of different makes can be
retrofitted. It is of utmost importance that all magnesium protective anodes integrated
in the storage tank are removed to prevent a disruption or malfunction of the impressed-
current anode. The impressed-current anodes may only be connected by qualified
personnel and according to the installation instructions of the manufacturer. The
impressed-current anodes are subject to the warranty conditions of the manufacturer.
Fresh-water tanks are equipped with a corrugated stainless steel pipe (1.4404) on
the drinking water side and require no further measures regarding the protection against
corrosion. On the heating water side, no further measures have to be taken regarding the
protection against corrosion due to the oxygen-free water (as per VDI 2035).
If storage tanks are fitted with service hatches, the flange seal has to be checked in
regular intervals. A yearly interval is recommended.
IMPORTANT: After opening the flange, a new seal must be installed.
IMPORTANT: The nuts have to be tightened by hand first and then fastened
diagonally with a torque between 18 and 22 Nm.
Fresh-water, Combined and Buffer Storage Tanks