EUROSTER 11M – USER MANUAL
5
have been introduced.
10.
CONTROLLER SETTINGS
After being switched on the controller shows system condition. Turning the knob right result in
entering setting overview and change mode.
Controller configuration follows a method specified below: Chose the required parameter by
turning the knob. The controller will show the value (at the top) and number (at the bottom).
In order to change value of the shown parameter, push the knob (parameter value will start
pulsing), set the required value and confirm selection by pressing the knob. If the value should
not be changed (cancellation of changes), do not push the knob, but wait 10 seconds for the
setting to stop pulsing.
Setting windows have been number for convenience.
User can change the following parameters:
1.
Regulated temperature
This is the temperature that the controller is trying to keep with the use of a mixer. This
can the temperature of heating circuit or return temperature.
2.
Temperature regulation hysteresis
This is temperature difference at which the controller starts closing and opening the
valve. If temperature of the regulated circuit does not differ from the settings by more
than half hysteresis, the controller will not correct mixer position. Thanks to this it is
possible to avoid unnecessary mixer rotation. Hysteresis can be set to zero - the
controller will then attempt to keep temperature exactly equal to the set temperature.
3.
Dynamics
This parameter characterizes regulation dynamics. If fast controller reaction to
temperature changes is important, dynamics should be increased. This can, however,
result in over-regulation.
Example reaction of the regulator to sudden temperature drop with too big and too
small dynamics has been presented below.
4.
Pump switch on temperature
This is boiler temperature at which central heating pump is switched on.
5.
Pump hysteresis
It refers to temperature difference at which the controller switches the central heating
pump on and off. Conditions for pump switching on and off have been described in
detail in chapter 11.
6.
Circuit alarm temperature
Settings allow to set a temperature at which alarms procedures are launched. If the
controller works in floor installation we recommend to set it at 45 C.
7.
Reading correction - boiler temperature sensor
This is the value which is added to the measured temperature. it allows for correction of
readings between the sensor placed on the pipe and the thermometer on the boiler.
8.
Reading correction - regulated circuit temperature
This is the value which is added to the measured temperature. it allows for correction of
temperature difference between the sensor placed on the pipe and heating medium.
9.
Mixer operation / test
It allows for manual control of the actuator. The numbers have the following meaning:
- 1 - closing the mixer (reducing regulated temperature),
0 - stopping the mixer
1 - opening the mixer (raising regulated temperature)
Pressing the knob and change in the displayed value allows for manual control of the
mixer. After 10 s of inactivity or after pressing the knob again, the controller resumes
operation according to its settings.
