Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 68

Boiler for woodchips and pellets
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Commissioning, inspection, maintenance
Setting the heating curves
The flow temperature in turn affects the room tempera-
ture.
For a detailed function description, see chapter "Con-
trol functions".
90
80
70
60
50
40
30
10
Fig. 50
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 flow temperature above
C
75 °C, slope 1.6 to 2.0
Selecting the set room temperature
The set room temperature can be adjusted separately
for each heating circuit.
Standard room temperature
110
A
C
B
D
Fig. 51
Changing the standard room temperature
from 20 to 26 °C
Flow temperature in °C
A
Outside temperature in °C
B
Set room temperature in °C
C
Heating circuit pump off
D
Heating circuit pump on
E
68
(cont.)
0
-10
-14
Outside temperature in °C
14 °C:
26°C
20°C
-20°C
E
Factory settings:
Slope = 1.4
Level = 0
Slope
1.4
C
1.2
1.0
B
0.8
0.6
0.4
A
0.2
-20
-30
The heating curve is offset along the set room temper-
ature axis. With the heating circuit pump logic function
active, the curve modifies the start and stop character-
istics of the heating circuit pump.
Press the following buttons:
1.
.
å
2.
/
for selecting the heating circuit.
|
~
3.
to confirm.
d
4.
/
for "Standard room temperature".
|
~
5.
to confirm.
d
6.
/
for the required value.
|
~
7.
to confirm.
d

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