Tech Controllers ST-976, Руководство пользователя

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Registration
In the case of using additional valves, it is necessary to register the valve by entering the module number in
order to configure the parameters.
The registration code may be found on the back of the casing or in software version submenu (
MENU ‐>
software version ).
The remaining settings of the additional valve may be found in Service menu . Valve controller should be set as
subordinate and the user should select the sensors depending on use.
Valve ON/OFF
This function is used to disable valve control temporarily.
Pre‐set valve temperature
This parameter defines the desired temperature which the valve should maintain. During proper operation the
temperature of water downstream of the valve approaches the pre‐set value.
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.
Single stroke
This is a maximum single stroke (opening or closing) that the valve may make during one temperature
sampling. If the temperature is near the pre‐set value, the stroke is calculated on the basis of
proportionality
coefficient parameter value. 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.
Minimum opening
The parameter determines the smallest valve opening. Thanks to this parameter, the valve may be opened
minimally, to maintain the smallest flow.
Opening time
This parameter defines the time needed for the valve to open from 0% to 100% position. This value should be
set in accordance with the specification given on the actuator rating plate.
Measurement 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.
Valve type
BUILT‐IN VALVE/
ADDITIONAL
VALVE 1, 2
VALV
E TY
PE
CH
Floor
With this option the user chooses the type of valve to be controlled:

CH ‐ select if you want to control the temperature of the CH circuit using the valve sensor. The valve
sensor should be installed downstream of the mixing valve on the supply pipe.

FLOOR ‐ select if you want to control the temperature of the underfloor heating circuit. It protects the
underfloor heating system against dangerous temperature. If the user selects CH as the valve type and
connects it to the underfloor heating system, the fragile floor installation may be damaged.