Controller Functions; Manual Operation; Parameters P1/P2/P3; Operation Type - Tech Controllers EU-427i User Manual

C
ONTROLLER FUNCTIONS
M
ANUAL OPERATION
By using this function the user can manually start any active actuator of the controller, independently from
other actuators, and check the alarm operation.
Pressing the PULSER turns the individual pumps on or off.
P P1/P2/P3
ARAMETERS
This function allows selecting parameters of P1, P2 or P3 pump to proceed to detailed settings of the pump
operation.
4.2.1

Operation type

Here the type of the pump to be started should be defined. Depending on the operation selected further
part of the menu is changed accordingly.
Off
T
his option is to be selected if no pump is connected to the input.
Circulation
By selecting this option the user will define the connection of the circulation pump to be operating in the
defined time intervals with the possibility to set the turn-on threshold temperature.
Operation time
Pause time
Turn-on
threshold
Sensor alarm
operation
1. Operation time – allows defining working time of the circulation pump.
2. Pause time – allows defining time of pause in the circulation pump operation.
3. Turn-on threshold – allows setting the turn-on threshold temperature.
If the pump is to operate independently from the temperature, select no and confirm by pressing the
pulser.
- If the circulation pump is to operate only above a preset temperature, select yes and confirm by
pressing the pulser. Another step is to set the pump turn-on threshold using the pulser knob.
Additionally, the user should define the sensor to provide current temperature for the pump.
4. Sensor alarm operation – allows defining if the pump operation should be triggered by an alarm of
any of the sensors.
yes
Sensor 1
no
Sensor 2
Sensor 3
Hysteresis
7