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DESCRIPTION
The EU-G-X device is a modern wireless thermostatic actuator designed
for installation on radiator valves. It allows for convenient and effective
temperature control in individual heating zones within the building.
The actuator control system allows for optimal thermal comfort and
promotes significant energy savings. This type of actuator can operate
with both heating and cooling systems. The device is compatible with,
among others, mounting strips and other controllers with wireless
communication.
OPERATING PRINCIPLE
The actuator sends RC data to the controller every few minutes. On the
basis of this data, the controller adjusts the opening of the actuator. The
actuator will not change the opening until it receives further data from
the controller.
It is possible to manually force communication. To do this, hold the
communication button for 2 flashes of the LED. The next 2 flashes
indicate successful communication, while 1 denotes a communication
error.
After a successful communication process, the actuator sends the data
to the controller, in which it informs that this action has been forced by
the user. As a result of manually forcing the communication, a screen
will be displayed on the controller with information in which zone the
actuator is registered, as well as additional diagnostic information.
NOTE
After each battery replacement, reset the actuator by holding the
communication button for 3 seconds (reset does not un-register
the actuator from the master controller).
CALIBRATION
The actuator calibration takes place before the start of operation of the
device, as well as cyclically during its operation.
Initial calibration process:
1. To perform the initial calibration process, remove the batteries, press
the communication button several times and reinsert the batteries.
2. Bolt retraction - after inserting the battery into the actuator, the
screw is retracted backwards as much as possible, and the actuator
adopts the mounting position.
3. Mounting position - the actuator remains in this position for approx.
30 minutes so that the user has the opportunity to register and install
the actuator on the heater. Holding the button for 3 flashes of the LED
will cancel the mounting position and continue the calibration.
4. Maximum bolt extension - the actuator extends the bolt until
resistance is encountered on the valve. Resistance is detected as an
increase in current above the preset threshold. After the maximum
extension, the actuator records the valve stroke and reduces it by the
set margins so that during operation it never positions the bolt too close
to the minimum or maximum extension. Based on the saved stroke, it
will convert the percentage of valve opening sent from the controller to
the appropriate position.
5. Bolt retraction - the bolt retracts slightly from the width of the adop-
ted margin so that it does not remain maximally tightened.
During operation, the actuator gradually calibrates, which is why this
device is equipped with the cyclic calibration function, which is
repeated every 50 shifts.
RECALIBRATION
It is possible to manually initiate recalibration. To do this, hold the
communication button for 3 flashes of the LED. During this calibration,
the actuator will not stop in the mounting position - the actuator
therefore must be mounted on the radiator valve.
Error
Calibration error 1
#1
Bolt retraction to mounting position took too long.
Calibration error 2
Bolt maximally extended as it did not meet any resistance
#2
during extension.
Calibration error 3
Bolt extension too short. The bolt met resistance too early
#3
during the calibration process.
Actuator feedback communication error.
For the last x minutes, the actuator did not receive a data
package via wireless communication.
#4
After this error is triggered, the actuator will set itself to
50% opening.
The error will reset after a data package is received.
Battery low
The actuator will detect battery replacement after voltage
#5
rises and launch calibration
#6
#7
Actuator blocked
Errors in the operation of the EU-G-X actuator will be displayed on the main controller..
Description
-
A
A - 48,6 mm
B - 82,7 mm
C - 47,6 mm
The actuator can be mounted with any valve. If installed with a Danfoss
valve, use the appropriate adapter according to the diagram below.
1
1. Danfoss RA-N or RTD-N valve
2. Danfoss RA-N or RTD-N adapter
3. EU-G-X Actuator
To register the actuator in a specific zone, select the option to register
in the main controller (please refer to its instruction manual), and then
briefly press the communication button.
After releasing the button, observe the indicator LED:
- the LED flashes 2 times - the registration process was carried out
correctly.
- the LED is lit continuously for 2 seconds - registration error - the
operation must be repeated.
NOTE
Registration is possible while in the mounting position before
installing the valve or after calibrating the actuator on the valve.
Communication
button
Use the tool included in the kit to register.
ALARMS
•
Locked/damaged actuator piston. Check the assembly and
recalibrate the actuator.
•
actuator was not screwed properly onto the valve
•
the actuator was not fully tightened onto the valve
•
actuator movement was excessive, or non-standard valve
encountered
•
motor load measurement failure occurred
Check the assembly and recalibrate the actuator.
•
valve movement was too small, or a non-standard valve
encountered
•
motor load measurement failure
•
motor load measurement inaccurate due to low battery charge
Check the assembly and recalibrate the actuator.
•
master controller disabled
•
poor signal or no signal originating from the master controller
•
defective RC module in the actuator
•
battery depleted
•
while changing the opening of the valve, excessive load was
encountered
Recalibrate the actuator.
B
INSTALLATION
2
REGISTRATION
Possible causes
-
C
3
Control
LED
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