Viessmann Vitodens 200 Operating Instructions And User's Information Manual page 20

Operation
Changing the Heating Pattern of the Boiler
Change heating pattern if ...
... the accommodation is too cold
at cold time of year
... the accommodation is too warm
at cold time of year
... the accommodation is too cold at
transitionary time of year and at
cold time of year
... the accommodation is too warm at
transitionary time of year and at
cold time of year.
... the accommodation is too cold at
transitionary time of year, but
warm enough at cold time of year
... the accommodation is too warm
at transitionary time of year, but
warm enough at cold time of year
20
The heating pattern of your boiler is influenced by the
outdoor temperature and the settings of the "n" and
"N" selector knobs. You can change the settings if you
establish over a prolonged period during the heating
season that the room temperature does not meet your
requirements.
After changing the settings, please observe the difference
in the heating pattern over a sufficiently long period
before altering the settings again.
Short-term changes in the room temperature are carried
out with the "s" or "m" selector knobs (see "Changing
the room temperature" on page 11).
Action
Adjust the "n" selector knob
upwards by one increment
Adjust the "n" selector knob
downwards by one increment
Adjust the "N" selector knob
upwards by one increment
Adjust the "N" selector knob
downwards by one increment
Adjust the "n" selector knob
downwards by one increment and the
"N" selector knob upwards by one
increment
Adjust the "n" selector knob
upwards by one increment and the
"N" selector knob downwards by
one increment
Note: In the factory settings the "n" selector knob is
The setting of the "n" selector knob is normally in the
range of 0.2 to 0.8 for underfloor heating systems
• in the range of 0.2 to 0.8 for underfloor heating
systems
• in the range of 0.8 to 1.4 for modulating heating
systems
• in the range of 1.4 to 2.0 for heating systems with
boiler water temperatures over 75ºC / 167°F
Vitodens 200, WB2 Operating
(continued)
Example
set to 1.4 and the "'N" selector knob to 0