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4. VALVE SETTINGS
EU-L-9r may control an additional valve via a valve module (e.g. i-1m). The regulators connect using RS communication but
the registration process is necessary. There is a range of parameters enabling the user to adjust the valve operation to
individual needs.
Configuring additional valve parameters is possible after the valve has been properly registered by entering the module
number (found on the rear part of the module housing or in software version screen).
4.1. ON/OFF
This function enables the user to enable or disable the valve.
4.2. PRE-SET VALVE TEMPERATURE
This function is define the pre-set valve temperature. The temperature is read from the valve sensor.
4.3. CALIBRATION
This function enables the user to calibrate the built-in valve at any time. During this process the valve is restored to its safe
position – in the case of CH valve it is fully opened whereas in the case of floor valve it is closed.
4.4. SINGLE STROKE
This is the maximum single stroke (opening or closing) that the valve may make during one temperature sampling. The smaller
the single stroke, the more precisely the set temperature can be achieved. However, it takes longer for the set temperature
to be reached.
4.5. MINIMUM OPENING
The parameter determines the smallest valve opening. Thanks to this parameter, the valve may be opened minimally, to
maintain the smallest flow.
4.6. OPENING TIME
This parameter defines the time needed for the valve actuator to open the valve from 0% to 100% position. This value should
be adjusted to the value given on the actuator rating plate.
4.7. MEASURMENT PAUSE
This parameter determines the frequency of water temperature measurement (control) downstream of the CH valve. If the
sensor indicates a change in temperature (deviation from the pre-set value), the electric valve will open or close by the pre-
set stroke, in order to return to the pre-set temperature.
4.8. VALVE HYSTERESIS
This option is used to set the hysteresis of the pre-set valve temperature. It is the difference between the pre-set (desired)
temperature and the temperature at which the valve will start closing or opening.
Example:
Pre-set valve temperature
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