Cleaning The Dhw Cylinder - Viessmann VITOLADENS333-F Service Instructions Manual

Further details regarding the individual steps
4. Connect the tester (up to 5 mA) in
series between magnesium anode
E and earth cable D.
The anode is OK if the indicated
current is > 0.3 mA.
Visually inspect the anode, if the
current measures < 0.3 mA or if
there is no current at all (see
page 28).

Cleaning the DHW cylinder

Note
EN 806 specifies a visual inspection and (if required) cleaning every two years
after the cylinder has been taken into use and thereafter according to require-
ments.
1. Drain the DHW cylinder.
Commissioning, inspection, maintenance
(cont.)
2. Remove flange lid A.
27