Maintenance Cleaning - Viessmann vitocal 300-g Operating Instructions Manual

Maintenance
Cleaning
All equipment can be cleaned with a
commercially available domestic clean-
ing agent (non-scouring).
Water must not be allowed to enter the
heat pump.
Inspection and maintenance
The inspection and maintenance of a heating system is specified by the Energy Sav-
ing Order [EnEV - Germany] and the DIN 4755, DIN 1988-8 and EN 806 stand-
ards.
Regular maintenance ensures trouble-free, energy-efficient and environmentally
responsible heating. For this, we strongly advise you to arrange an inspection and
maintenance contract with your local heating contractor.
DHW cylinder (if installed)
The DIN 1988-8 and EN 806 specify that
maintenance and cleaning should be
carried out no later than two years after
commissioning and thereafter as
required.
Only a qualified heating contractor
should clean the inside of a DHW cylin-
der and the DHW connections.
Refill any water treatment equipment
(e.g. a lock or injection system) in good
time, if such equipment is installed in the
cold water supply of the DHW cylinder.
In this connection, observe the manufac-
turer's instructions.
Safety valve (DHW cylinder)
The safety valve function should be
checked every six months by venting,
either by the system user or the local
heating contractor. The valve seat may
become contaminated (see the valve
manufacturer's instructions).
54
Additionally for a Vitocell 100:
We recommend that the correct function
of the sacrificial anode is checked annu-
ally by your heating contractor.
The anode function can be checked with-
out interrupting the system operation.
The heating contractor will check the
earth current with an anode tester.