Viessmann Vitotronic 300 Operating Instructions Manual page 22

Settings
Changing the heating pattern of the boiler
Slope
Shift
22
(continued)
Changing the heating pattern by adjusting the heating curve
1. Open the hinged cover on the pro
gramming unit.
2. Press the heating circuit selector
button; the button is lit.
3. I Press I for "Slope"
or
J Press J for "Shift".
4. a/b Press a/b until the
required value is displayed.
5. d Press d to confirm;
the display changes and
shows the boiler tempe
rature.
6. Close the hinged cover on the pro
gramming unit.
As a guide, please refer to the
table headed "Change heating
pattern if..." on page 23.