Viessmann Vitodens 200 Start-Up/Service Instructions page 64

Additional Information
Control Unit for Weather-Responsive Operation
64
with programming unit
Heating curve
The heating curves represent the relationship between
the outdoor temperature and the boiler water or supply
temperature.
Put simply: The lower the outdoor temperature, the
higher the boiler water or supply temperature. In turn,
the room temperature is dependent on the boiler water
or supply temperature.
If a different room temperature is set, the curves are
shifted parallel to the desired room temperature axis.
Factory settings:
slope "n" = 1.4
shift "N"= 0
1. To change the slope
Open cover on programming unit and go through menu
as follows:
Menu option
 HEATING CIRCUIT A
or
HEATING CIRCUIT B
 HEATING CURVE
 CHANGE
2. To change the shift
Open cover on programming unit and go through the
menu as follows:
Menu option
 HEATING CIRCUIT A
or
HEATING CIRCUIT B
 HEATING CURVE
 CHANGE 2 ×
Vitodens 200 WB2 Service
(continued)
Button
"A"
"B"
"B"
"A"
Button
"A"
"B"
"B"
"A"