EUROSTER 11E USER MANUAL 4
controller parameters (presets):
1. Controlled temperature
Threshold temperature at which controller will turn the respective pump ON/OFF.
2. Pump hysteresis
Difference etween the temperature at which the controller turns the pump ON and the
temperature at which the controller turns it OFF. See section 9 elow for details.
3. Temperature sensor correction
A constant added to/su tracted from all values measured y (external) temperature
sensor to compensate for difference in respect to water temperature inside the system.
4. Pump manual operation (test)
Display current pump status commanded y the controller (0/1 = pump
disengaged/engaged).
Press the kno and modify the parameter value to manually control the pump. Press
the kno once more or leave it inactive for 10 seconds to resume automatic mode of
control.
All presets are listed elow for two possi le modes of operation:
●CH central heating pump control mode
●UHW utility hot water pump control mode
Parameter Preset value
Unit
Name default min max
CH UHW CH UHW CH UHW
Controlled temperature 40 60 10 10 80 80 °C
Pump hysteresis 4 4 2 2 10 10 °C
Temperature sensor
correction 0 0 –5 –5 5 5 °C
Pump manual operation
(test)
as calculated y
the controller
as calculated y
the controller
0
(OFF)
0
(OFF)
1
(ON)
1
(ON) -
9 CONTROLLER OPERATION
Central heating pump control mode:
•The pump is engaged as soon as the oiler temperature T oiler has exceeded the preset
threshold Tpreset y more than half of the pump hysteresis Hpump:
Toiler > Tpreset + Hpump/2
•The pump is disengaged as soon as the oiler temperature has dropped elow the
threshold y more than half of the hysteresis:
Toiler < Tpreset – Hpump/2
Utility hot water pump control mode:
•The pump is engaged as soon as the UHW tank temperature Ttank has dropped elow the
threshold Tpreset y more than half of the pump hysteresis Hpump:
Ttank < Tpreset - Hpump/2
•The pump is disengaged as soon as the UHW tank temperature has exceeded the
threshold y more than half of the hysteresis:
Ttank > Tpreset + Hpump/2
10 THE ANTY-STOP FUNCTION
The ANTY-STOP function turns on the pump immediately after the controller is turned on, then
every 14 days. “AS” letters are linking on the controller display while the function is active.
Any alarm generated while the ANTY-STOP function is active (overheating or temperature
sensor failure) a orts the function execution.