TECH ST-45, Руководство пользователя

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ST-45 User's Manual
temperature exceeds the critical value, ranging from 85°C and 90°C. This
is to prevent water from boiling in the system when the boiler has been
overheated or the regulator damaged. With this type of safety
temperature protection, the system will return to the initial position
( automatically ).
ATTENTION: in case the thermal relay is damaged, the fan and the
feeder are inoperative in both modes: manual and automatic.
VI.3.Automatic Sensor Check
When the temperature sensor of the central heating, hot
consumption water, screw or grate is damaged, an alarm is activated
with an additional indication shown in the display, e.g.: C.H. Sensor
Damaged:
the feeder and the fan are shut off. The pump is activated
regardless of the actual temperature. If you press the encoder (this
refers to the hot consumption water sensor), the regulator will deactivate
the alarm and the controller will return to its normal operation with a
single pump. If the central heating sensor or feeder sensor is damaged,
the alarm will remain active until the sensor is replaced.
VI.4.Anti-Boil Protection
This function is used for protecting the boiler against high
temperatures [only with the water heater priority function] , e.g.
when the water heater setpoint temperature is 55°C and the boiler
temperature is 62°C, the controller shuts off the feeder and the fan.
When the temperature reaches 80°C, the central heating pump is
activated. When the temperature continues to rise, the alarm is sounded
at 85°C. Such condition may appear when the water heater or the pump
are damaged or when the sensor has been improperly mounted.
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