5.1.2 4-point characteristic
The 4-point characteristic allows you to define your own heating characteristic.
It is defined by 4 points each for the
Outdoor temperature, the Flow temperature, the Reduced
flow temperature and the Return flow temperature. The Max. flow temperature and Min. flow
temperature parameters mark the upper and lower limits of the flow temperature.
Note!
The Day set point and Night set point parameters are no longer available when the 4-point
characteristic has been selected, provided no additional functions (e.g.
Optimization
,
Flash
adaptation
) have been selected.
Function
WE
Configuration
4-point characteristic
0
CO1, 2 -> F11 - 1
Parameters
WE
Parameter level / Range of values
Outdoor temperature
Point 1
Point 2
Point 3
Point 4
–15 °C
–5 °C
5 °C
15 °C
PA1, 2 / –30 to 50 °C
Flow temperature
Point 1
Point 2
Point 3
Point 4
70 °C
55 °C
40 °C
25 °C
PA1, 2 / 5 to 130 °C
EB 5576 EN
51
Functions of the heating circuit
t
VLmax
t
VLmin
t
VL
100
90
80
70
60
50
40
30
20
10
[˚C]
20
15
10
5
0
–5
–10 –15 –20
P1
P2
P3
P4
[˚C]
t
A
Fig. 6 · 4-point characteristic
P1 to P4
Points 1 to 4
tVL
Flow temperature
tA
Outdoor temperature
... min
Min. tVL
...max
Max. tVL
4-point characteristic
Reduced 4-point characteristic
