Service Instructions - Viessmann Vitotronic 200 KW2 Operating Instructions Manual

Service Instructions

Service Instructions
30
Servicing is required under current heating system regulations and standards.
Regular servicing of the heating system will ensure troublefree, energy-saving and
environmentally friendly heating. We strongly advise you to arrange a service
contract with your heating contractor.
Boiler
All boilers have to be cleaned at certain
intervals as the flue gas temperature and
therefore the energy loss rise as the
level of contamination increases.
We recommend the use of a flue gas
thermometer.
The flue gas thermometer, which is
available as an accessory, can be used
to monitor the flue gas temperature.
This will show whether the burner
setting is incorrect and will provide an
indication of the degree of
contamination of the boiler.
The efficiency of the system will be
impaired if the flue gas temperature is
excessively high due to contamination of
the boiler or incorrect adjustment of the
burner. In this case it may be necessary
to clean the boiler or readjust the burner.
A built-in operating hours counter
measures the operating times of the
burner.
The longer the operating times, the
lower the stand-by losses.
Domestic hot water tank
The domestic hot water tank must be
serviced or cleaned two years after
start-up at the latest and at regular
intervals thereafter.
Cleaning of the inside surfaces of the
domestic hot water tank including the
domestic hot water connections may
only be undertaken by a licensed
heating contractor.
Vitocell 100:
We recommend that a functional
inspection be carried out annually by
the heating contractor to check the
sacrificial anode. This can be done
without interrupting the operation of the
system. The heating contractor
measures the protective current with an
anode testing instrument.
Safety relief valve (DHW tank)
The valve test lever must be operated
at least once a year by the owner. A
licensed heating contractor shall
reinspect the safety relief valve at least
once every 3 years.
Drinking water filter (if installed)
For hygienic reasons
replace the filter element every
6 months on filters which cannot
be flushed back (also make a visual
inspection every 2 months),
flush back reversible supply filters
every 2 months.
Notes on operation:
Keep the boiler room and the boiler
clean.
Regularly check the pressure of the
heating system on the pressure
gage.
IMPORTANT
If the cold water supply to the hot
water tank incorporates a water
treatment device (e.g. a sluice or
inoculation unit), the filling must be
renewed promptly.
The same applies if a dirt trap or a filter
is installed in the cold water supply.
These must be flushed out and serviced
regularly.
IMPORTANT
There is a risk of dirt collecting at the
valve seat (see valve manufacturer's
instructions).
IMPORTANT
Please refer to the manufacturer's
instructions.