29
FUNCTIONS
FREEZE-PROTECTION
For boiler temperatures lower than or equal to 5°C, the boiler and the heating circulator are activated at the
same time. Once the temperature of 20°C has been reached, the heating circulator stops and the water heater
circulator is activated for 3 minutes. At the end of the cycle, the boiler sets to stand-by.
OVER-TEMPERATURE RESTORATION FUNCTION
If the boiler temperature is equal to or more than 92°C, the electronic control unit activates the heating circulator,
if the heating request comes from the plant, or the hot water circulator, if the request comes from hot water
system.
The circulator (heating or hot water) remains active until the temperature is less than or equal to 90°C.
