For Technically-Minded System Users - Viessmann VITOLIGNO 300-P Operating Instructions Manual

Further adjustments
Modifying the boiler heating characteristics
Press the following keys:
1. "MENU".
2. |/~ for selecting "Heating
circuit 1" (HK1), "Heating
circuit 2" (HK2) or
"Common circuit".
3. d to confirm.
4. |/~ for "Heating curve".
5. d to confirm.
6. |/~ for "Slope"
or "Level".
Heating curve
Slope
Level
Select with OK

For technically-minded system users

The heating curves demonstrate the relationship between the outside temperature
and the boiler water or flow temperature. To put it simply: The lower the outside
temperature, the higher the boiler water or flow temperature.
The illustrated heating curves apply subject to the following settings:
■ Heating curve level = 0
Different level settings offset the curves parallel in a vertical direction.
■ Standard room temperature = approx. 20 ºC
In the delivered condition, the slope is set to 1.4; the level to 0.
40
7. d
8. |/~ for the selected value.
9. d
10. g
Note
Setting the heating curve slope or level
too high or too low will not result in
damage to your heating system.
HK1
1.4
-5 K
(cont.)
to confirm.
to confirm.
press until the standard
display is shown (see
page 10).