53
Note
If the heating system includes heating circuits with
mixer, then the flow temperature of the heating circuit
without mixer is higher by a selected differential (8 K in
the delivered condition) than the flow temperature of
the heating circuits with mixer.
The differential temperature can be changed in coding
address "9F".
Factory settings:
■
Slope = 1.4
■
Level = 0
0.2
Outside temperature in °C
Boiler
water
or
flow temperature
in °C
Slope
2.4
2.6
2.8
3.0
3.2
3.4
90
80
70
60
50
40
30
0
-10
-20
10
A
B
2.0
2.2
Set room temperature
in °C
35
30
25
20
15
10
5
0.4
0.6
0.8
1.0
1.2
1.4
-30
1.8
1.6
C
-14
Fig. 50
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
Changing the slope and level
A
B
Boiler
water
or
flow temperature
in °C
90
+20
-20
Outside temperature in °C
3.5
1.4
0.2
Fig. 51
A
Changing the slope
B
Changing the level (vertical parallel offset of the
heating curve)
Extended menu
1.
å
2. "Heating"
3.
Select a heating circuit.
4. "Heating curve"
5. "Slope"
or
"Level"
6.
Adjust the heating curve according to the system
requirements.
Commissioning, inspection, maintenance
Adjusting the heating curves
(cont.)
6136330
