Iii.d) Anti-Boil Protection; Iii.e) Temperature Protection - TECH ST-37 Manual Manual

the feeder and the fan are shut off. The pump is activated regardless of the
actual temperature. If you press OPTIONS, the regulator will deactivate the
alarm and the controller will return to normal operation.

III.d) 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 will shut off the feeder and the fan. When the temperature reaches
80°C, the central heating pump will be activated. When the temperature
continues to rise, the alarm will be sounded at 85°C. Such condition may
appear when the water heater or the pump is damaged or when the sensor
has been improperly mounted. However, when the temperature continues to
drop, the controller will activate the feeder and the fan at 60°C and it will
continue to operate until the water heater setpoint temperature is reached.

III.e) Temperature Protection

The regulator has an additional protection in case the bimetal sensor is
damaged: after the temperature exceeds 85°C, the alarm is sounded. The
display will show:
The actual temperature that is read from an electronic sensor and processed
by the thermoregulator. When the alarm temperature is exceeded, the fan is
shut off and both pumps begin to run in order to distribute hot consumption
water throughout the system.
A L A R M
Temp too high
TECH
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