Stopping Central Heating - Viessmann VITOLIGNO 300-H Series Operating Instructions Manual

Heating curve
(cont.)
5. / for "Heating curve".
| ~
6. to confirm.
d
7. / for "Slope"
| ~
or "Level".
8. to confirm.
d
9. / for the required value.
| ~
Heating curve
100°C
23°C
55°C
41°C
20 10 0
Slope
Change with
Fig. 17
10. to confirm.
d
90
80
70
60
50
40
30
10
Fig. 18
Example for outside temperature
Underfloor heating system, slope 0.2 to 0.8
A
Low temperature heating system, slope 0.8 to 1.6
B
Heating system with a boiler water temperature in
C
excess of 75 °C, slope 1.6 to 2.0

Stopping central heating

Heating program
Heating
Standby mode
Select with
Fig. 19
HC1
81°C
68°C
-20 -30
-10
1.5
(
0 -10
-14
Outside temperature in °C
14 °C:
−
Note
Setting the slope or level too high or too low will not
result in damage to your heating system.
For technically-minded system users
Heating curves illustrate the relationship between the
■
outside temperature and the flow temperature. To put
it simply: The lower the outside temperature, the
higher the flow temperature.
The heating curves shown apply with the following set-
tings:
■ Heating curve level = 0
A different setting for the level will shift the curves in
parallel in a vertical direction.
Standard room temperature = approx. 20 °C
■
In the delivered condition, the slope is set to 1.4; the
level to 0.
Slope
1.4
C
1.2
1.0
B
0.8
0.6
0.4
A
0.2
-20 -30
Press the following buttons:
1. repeatedly until the "standard menu" is dis-
ä
played.
2. / for "Heating".
| ~
3. to confirm.
d
Central heating
21