The blower is activated. The pump starts irrespective of the
current temperature. The controller awaits for pressing the
OPTIONS button. Next, the alarm is deactivated and the normal
operation of the controller is restored.
III.c) Temperature protection
The controller has an auxiliary protection in case of damage to
a bimetal sensor: upon exceeding the temperature of 85°C, the
alarm is activated and the LCD displays:
III. d) Boiling protection
This function prevents excessive temperature of the boiler (only
when the boiler priority function is on) i.e. when the boiler set
temperature is e.g. 55°C and the current boiler temperature is
62°C, the controller activates the fan. When the temperature
reaches as much as 80°C, the CH pump is activated. If the
temperature continuous increasing, the alarm turns on at 85°C.
This may happen, when the boiler is damaged, the sensor is
installed improperly and the pump is damaged. However, if the
temperature decreases, at the threshold value of 60 °C, the
blower will be started and it will continue operation until the
boiler set temperature is reached.
III.e) Fuse
The controller is equipped with a WT
2.5A
fuse to protect the
means.
WARNING:
No fuse of the higher value should be used.
Installation of the fuse of a higher ampere value may
result in a damage to the controller.
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