Opening Time; Single Step; Minimum Opening - TECH ST-450zPID User Manual

230v 50hz thermoregulator
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remove it completely. Once it is re-enabled no registration is required
2. Set-point valve temperature
This setting is used to set the circuit temperature to be maintained by the
mixing valve. This is the main temperature based on which the room
thermostat reduction function is to be run (see Section III.a.10). The room
thermostat reduction function is set separately for the CH system (setting in the
user menu) and separately for each of the valves.
3. Temperature control
This parameter determines the sampling (control) frequency of the water
temperature downstream of the valve for the central heating or hot water
system. If the sensor indicates a change in temperature (deviation from set-
point), then the solenoid will open or close partially by a preset step to restore
the set-point temperature.

4. Opening time

You can use this function to set the time for the full opening of the valve,
that is to say, how long it takes to open the valve to 100%. This time should be
selected according to your valve actuator (shown on the nameplate).

5. Single step

You can use this function to set a percentage value for a single step in the
operation of valve opening, that is to say the maximum percentage value of
opening or closing that the valve can move in a single step (maximum
movement of the valve in one measurement cycle).

6. Minimum opening

Use this function to set the minimum value for valve opening. Below this
value, the valve will not close shut.
ST – 450 z PID
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