Upkeep; Inspection And Maintenance; Dhw Cylinder (If Installed); Safety Valve (Dhw Cylinder) - Viessmann VITOSOLIC 200 Operating Instructions For The System User

Inspection and maintenance

DHW cylinder (if installed)

Standards DIN 1988-8 and EN 806 spec-
ify that maintenance and cleaning should
be carried out no later than 2 years after
commissioning and as required there-
after.
Only a qualified heating contractor
should clean the inside of a DHW cylin-
der and the DHW connections.
If any water treatment equipment (e.g. a
sluice or injection system) is installed in
the cold water supply of the DHW cylin-
der, ensure this is refilled in good time.
In this connection, observe the manufac-
turer's instructions.

Safety valve (DHW cylinder)

The function of the safety valve must be
checked every six months by the user or
a contractor through venting (see valve
manufacturer's instructions). The valve
seat may become contaminated.

Potable water filter (if installed)

To maintain high hygienic standards,
proceed as follows:
■ Replace filter element on non-back
flushing filters every six months (visual
inspection every two months).
■ On back flushing filters, back flush
every two months.
In addition for Vitocell 100:
We recommend that the correct function
of the sacrificial anode is checked annu-
ally by your heating contractor.
The function of the sacrificial anode can
be checked without interrupting the sys-
tem operation. The heating contractor
will check the earth current with an
anode tester.
Water may drip from the safety valve
during a heat-up process. The outlet is
open to the atmosphere and must not be
closed off.

Upkeep

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