OUMAN EH-203
TUNING VALUES
OUMAN EH-203
EH 203 has three PID regulators. The tuning values may have to be
adjusted, for example, when the district heating exchanger is installed
if the setting wavers with the original factory setting.
Anticipate and quick run can be set in the HW regulating circuit in
addition to PID.
Tuning takes place in the following manner:
Directions for entering the maintenance
mode are on page 21.
INFORMATION ABOUT TUNING VALUES
Explanation:
Supply water temperature change at
which the actuator runs the valve at
100%.
The deviation in the supply water
temperature from the set value is
corrected by P amount in I time.
Regulation reaction speed up in the event
of a temperature change
Uses anticipate sensor measurement
information to speed up regulation when
HW consumption changes.
Functions during consumption changes.
Range:
10...300 °C
5...300 s
0.0...10.0 s
0...100 %
10...300 °C
5...300 s
0.0...10.0 s
50...250 °C
Factory
settings:
H1, H2: 140°C
HW: 70 °C
H1, H2:
5
HW:
18 s
H1, H2:
0.0
HW:
0.0
0 s
s
s
HW: 140 °C
HW:
60 %
Settings:
P-area
P-area
I-time
I-time
D-time
D-time
Anticipate
Quick run
Attention!
Eg. If the supply water
temperature changes 10
°C and the P area is 100
°C the position of the
actuator changes 10%.
Beware of constant waver!
Increase the anticipate
value to decrease reaction
to changes in consumption.
Decrease this value to
decrease reaction to quick
temperature changes.
The original factory settings may vary from the above. Shorten the I time (to approx. 12 seconds) in the HW 3-
way mixer.
HW Tuning values
P-area:
°C
I-time:
s
D-time:
s
Anticipate:
°C
Quick run:
%
70
18
0.0
140
60
H1 Tuning values
P-area:
°C
I-time:
s
D-time:
s
140
50
0.0
H1 Maint mode
Tuning values
Settings
Trends
T
he cursor is at "Tuning values".
Press
OK.
Press the
button to move the cursor.
Press the
or
button to make changes. Press
to confirm.
Press
OK.
-
+
OK
Press the
button to move from one regulating circuit to the next.
22
