Viessmann VITOLIGNO 300-P Service Instructions Manual page 42

Commissioning, inspection, maintenance
Further details regarding the individual steps
90
80
70
60
50
40
30
Example for outside temperature
−14 °C:
A Underfloor heating system, slope
0.2 to 0.8
B Low temperature heating system,
slope 0.8 to 1.6
C Heating system with a boiler water
temperature in excess of 75 °C,
slope 1.6 to 2.0
Adjusting the set room temperature
Individually adjustable for each heating
circuit.
42
10 0
The heating curve is offset along the axis
of the set room temperature. When the
heating circuit pump logic function has
been enabled, the curve modifies the
starting and stopping characteristics of
the heating circuit pump.
(cont.)
Slope
-10 -20
-14
Outside temperature in °C
1.4
C
1.2
1.0
B
0.8
0.6
0.4
A
0.2
-30