Checking And Replacing The Protective Magnesium Anode (If Required) - Viessmann VITODENS 222-F Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Cleaning the loading cylinder
1.
8x
3.
Fig. 41
1. Drain the loading cylinder.
2. Remove flange cover
3. Disconnect the loading cylinder from the pipework
to prevent contamination from entering the pipe-
work.
4. Remove loose deposits with a pressure cleaner.
Use a chemical cleaning agent to remove hard
deposits that cannot be removed with a pressure
cleaner.
!
Please note
Do not damage the cylinder:
■ Only use plastic cleaning equipment to
clean the inside.
■ Never use cleaning agents containing
hydrochloric acid.

Checking and replacing the protective magnesium anode (if required)

Visual inspection of protective magnesium anode. If
the anode has degraded to between 10 and 15 mm Ø,
we recommend replacing the magnesium protective
anode.
48
2.
A .
(cont.)
5. Thoroughly flush the loading cylinder after clean-
ing.