TECHNICAL ASSISTANCE SERVICE
45
20
30
40
50
60
70
80
90
S=2
S=10
S=20
Tm
Tec
-20
-15
-10
-5
0
5
10
15
20
SETTING FUNCTIONING PARAMETERS
If an outdoor temperature sensor is connected, the controller uses the heating curve to generate the CH flow tempera-
ture setpoint, thus enabling the boiler to maintain a constant room temperature even without the use of a room unit.
The steeper the slope of the heating curve, the higher the flow temperature setpoint at low outdoor temperatures (see
Manufacturer parameter 532).
Heating curves with room temperature setpoint = 20°C
Tm - CH flow temperature
Tec - Compound outdoor
temperature
S - Slope
If the room setpoint is reduced, these curves shift downwards.
Sa=10°C
Sa=20°C
20
30
40
50
60
70
80
90
-20
-15
-10
-5
0
5
10
15
20
Tec
Tm
Sa=30°C
Heating curve with slope = 15
Tm - CH flow temperature
Tec - Compound outdoor
temperature
Sa - Room temperature
setpoint
