OUMAN EH-800, Руководство пользователя

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5
Heating curve settings
The 3-point curve has automatic curve adjustment! The controller do-
es not allow descending curves or curves that are too concave.
A parallel shift can be made to the heating curve using the fine adjust-
ment function (see p. 48) The 5 point curve is taken into use in process
settings (see p. 29 and 34, how to set a 5 point curve)
The ends of the heating curve are adjusted using the minimum and
maximum limits. The supply water minimum limit setting ensures
that the pipes do not freeze. The maximum limit setting ensures that
excessively hot water that could damage structures (e.g., parquet
with floor heating) does not enter the heating system.
The basis of an even room temperature is a heating curve of the
correct shape. The correct shape depends on many factors. (the
building’s insulation, type of heat distribution, size of the network,
etc.). The supply water temperature for different outdoor temperatu-
res is set in heating curve settings. With Ouman EH-800 the heating
curve can be adjusted exactly to meet the needs of the facility from
either three or five points. A 3 point curve is the factory setting.
Examples of 3 point curve factory settings:
1. Floor heating, damp rooms
The controller has factory set curves and settings suitable for dif-
ferent heating modes that usually do not have to be changed.
The heating curve needs to be adjusted if the room tempera-
ture does not remain even when the temperature is below ze-
ro and falling.
If the room temp. drops,
make the curve steeper
(set the bigger values
at -20 and 0).
If the room temp. rises,
make the curve less steep
(set the smaller values
at -20 and 0).
Note! Changes effect room temperature slowly
Wait at least 24 hours before readjusting settings. Especially in buil-
dings having floor heating the delays in room temperature changes
are quite long.
The supply water minimum limit setting also ensures a comfortable and good drying
temperature in the summer.
Minimum limit
Maximum limit
4. Radiator heating, steep heating curve
3. Radiator heating, normal heating curve
2. Floor heating, normal heating curve
H1 Heating curve
-20 = 58 °C 62 °C
0 = 41 °C 43 °C
+20 = 18 °C
Min. limit: 12 Max. limit: 75
+20 -20 0 °C
20
40
60
80
H1 Heating curve
-20 = 58 °C 54 °C
0 = 41 °C 39 °C
+20 = 18 °C
Min. limit: 12 Max. limit: 75
+20 -20 0 °C
20
40
60
80
H1 Heating curve
-20 = 31 °C
0 = 27 °C
+20 = 23 °C
Min. lilmit: 23 Max. limit: 35
+20 -20 0
°C
20
40
60
80
H1 Heating curve
-20 = 33 °C
0 = 27 °C
+20 = 20 °C
Min. lilmit: 12 Max. limit: 42
+20 -20 0
°C
20
40
60
80
H1 Heating curve
-20 = 58 °C
0 = 41 °C
+20 = 18 °C
Min. lilmit: 12 Max. limit: 75
+20 -20 0 °C
20
40
60
80
H1 Heating curve
-20 = 63 °C
0 = 44 °C
+20 = 18 °C
Min. lilmit: 12 Max. limit: 75
+20 -20 0
°C
20
40
60
80
effects the H1 control circuit curve.
effects the H2 control circuit curve.
(only appears if the H2 control circuit has been taken into use,
initiation see p. 34).