Further Details Regarding The Individual Steps - Viessmann VITOPLEX 100?LS Installation And Service Instructions Manual

Initial start−up, inspection and maintenance

Further details regarding the individual steps

Maintenance instructions
We recommend that your boiler system is maintained regularly by a heating
specialist to ensure fault−free, energy−conscious and environmentally safe
operation of your heating system.
Your boiler must be cleaned at regular intervals, otherwise the flue gas
temperature rises with increasing contamination, which leads to higher
energy losses.
We recommend the use of a flue gas thermometer.
Monitoring the flue gas temperature highlights incorrect burner settings and
the level of boiler contamination.
Excessive flue gas temperatures through boiler contamination or incorrect
burner setting reduces the system efficiency. Where necessary, clean the
boiler or adjust the burner settings.
Adjusting the pressure regulator and pressure limiter
1. Adjust the pressure limiter
response pressure a little higher
than that of the pressure regulator.
2. Secure the protective cap again on
the pressure limiter to prevent any
unauthorised adjustment at a later
time.
3. During commissioning, adjust the
pressure regulator to the required
operating pressure.
Do not alter this setting later.
Adjust the pressure regulator for
stage 1 a little higher and a little
lower for stage 2.
6
Note
Each pressure regulator is
equipped with a setting screw
each for adjusting the switching
point (e.g. 0.45 bar) and for
selecting the switching differential
(e.g. 0.02 bar), i.e., the pressure
regulator starts the burner at
0.43 bar and switches it OFF at
0.45 bar.