TECH ST-431, Руководство пользователя

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ST-431 – user manual
Proportionality coefficient is used for defining valve stroke. The closer
the preset temperature, the smaller the stroke. If this coefficient is high, the
valve will faster achieve the opening close to the relevant. However, the
opening will not be accurate. Single opening percentage is calculated on the
basis of a formula:
(SET_TEMP - SENSOR_TEMP) * (PROP_COEFF /10)
IV.h) Maximum floor temperature
This is the maximum temperature, which does not damage floor
installation. Setting this temperature is used, when valve type is set as the
floor type. After reaching this temperature, a complete valve closure takes
place, and a user is informed about that by means of a relevant alarm. If the
maximum floor temperature is reached, the
boiler protection function is
deactivated. In this case, the floor installation protection will have a higher
priority.
IV.i) Opening direction
If after connection of the valve to the controller it turns out that it was
to be connected the other way round, then the power supply cables do not
have to be switched, it is enough change the opening direction in this
parameter.
LEFT *
RIGHT *
IV.j) Operation modes
In this function, user selects the working mode between:
STANDARD - the controller maintains the preset temperature at the valve
exit level.
ROOM CONTROL - the controller maintains the temperature of the valve till
the moment in which room the regulator gives the signal about heating-up of
the room (contact opening). Then the preset temperature will be reduced by
the temperature value set for parameter
REDUCTION IN ROOM CONTROL
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