V.h) Fitter's Menu - Tech Controllers L-7 User Manual

V.h) Fitter's menu
Fitter's menu should be accessed by a qualifi ed person. It enables the fi tter to adjust
additional controller functions.
V.h.1) Valve
L-7 external controller may also control an additional valve via a valve module (e.g. ST-
431N). The regulators communicate via RS communication but registration is necessary.
There is a rage of parameters to confi gure the valve operation and adjust it to individual
needs.
Pre-set valve temperature
•
This function is used to defi ne the pre-set valve temperature. It is measured by the valve
sensor.
Registration
•
Confi guring additional valve parameters is possible only after the valve has been registered
by entering the module number (given on the back side of the control module or in software
version screen).
Valve status
•
This function is used to deactivate the valve. If the valve is to be activated again, it is not
necessary to register again.
Temperature control
•
This parameter determines the frequency of water temperature measurement (control)
behind the CH valve. If the sensor indicates a change in temperature (deviation from the
pre-set value), then the electric valve will open or close by the set stroke, in order to return
to the pre-set temperature.
Opening time
•
This parameter defi nes 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.
• Single stroke
This function is used to defi ne 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 pre-set temperature can be achieved. However, it takes longer for the set
temperature to be reached.
• Minimum opening
The parameter defi nes the smallest valve opening. Thanks to this parameter, the valve may
be opened minimally, to maintain the smallest fl ow.
Valve type
•
By means of this setting the user selects the type of controlled valve out of the following:
CH – selected if the user wants to control the CH circuit temperature.
FLOOR- selected if the user wants to control the temperature of the underfl oor heating
circuit. It protects the underfl oor heating installation against dangerous temperature. If
the user selects CH as the valve type and connects it to the underfl oor heating system, the
fragile fl oor installation may be damaged.
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