12
The supply water temperature for different outdoor temperatures
is set with heating curve. With S203 the heating
curve can be adjusted exactly to meet the needs of the facility
from five temperature points.
H1 (H2) Control circuit-> Heating curve
3.2 Heating curve
Note! Changes influence room temperature slowly.
Wait at least
24 hours before readjusting the settings. Especially in buildings
with foor heating, the delays in room temperature changes are
quite long. The supply water minimum limit setting ensures that
pipes will not freeze. The maximum limit setting ensures that ex-
cessively hot water that could damage structures (e.g. parquet in
case of foor heating) does not enter the heating system.
If room temperature drops, make the curve steeper.
(Set higher values for supply water temperature at the outdoor
temperatures -20 °C, -10 °C and 0 °C).
H1 Control circuit
Supply water information
Measurements
Heating curve
Setting values
>
>
>
>
If room temperature rises, make the curve less steep.
(Set lower values for supply water temperature at the outdoor
temperatures -20 °C, -10 °C and 0 °C).
Setting
Factory setting
Explanation
5-point curve
Heating curve
-20 = 58 °C
0 = 41 °C
+20 = 18 °C
Min. limit: 18 Max limit: 75
-10 = 50 °C
+10 =28 °C
+20
-20
0
°C
20
40
60
80
With 5-point curve you can change the curve to the outdoor temperature
values -20°C and +20°C as well as to three other outdoor temperatures be-
tween -20°C and +20°C. To change the outdoor temperature point, press OK
for a long period of time.
Min limit
18 °C
Minimum allowed supply water temperature. A higher minimum temperature
is used in moist rooms and tiled rooms than in, e.g., rooms having a parquet
floor to ensure a comfortable temperature and removal of moisture in the
summer.
Max limit
75 °C
Maximum allowed supply water temperature. The maximum limit prevents
the temperature in the heating circuit from rising too high, preventing dam-
age to pipes and surface materials. If, e.g., the heating curve setting is incor-
rect, the maximum limit prevents excessively hot water from entering the
network.
-20 = 58 °C
54 °C
0 = 41 °C
39 °C
+20 = 18 °C
Min.limit: 18 Max limit: 75
+20
-20
0
°C
20
40
60
80
-10 = 50 °C
47 °C
+10 =28 °C
-20 = 58 °C
62 °C
0 = 41 °C
43 °C
+20 = 18 °C
Min.limit: 18 Max limit: 75
+20
-20
0
°C
20
40
60
80
-10 = 50 °C
53 °C
+10 =28 °C
Heating curve
Heating curve
