Overview of Protective Functions
The antifreeze function (AFr) and the protection function for the circulation pump and three-way valve (PPr) are integrated into the boiler’s operating algorithms. These functions operate automatically and are designed to protect the boiler’s components from breakdowns and extend its service life. It is important to note that for these functions to work, the boiler must be connected to the power grid and be in standby mode (the “Off” mode, while a red icon should be lit).
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Antifreeze Function (AFr)
The antifreeze function activates when the temperature of the heat carrier in the boiler drops to +5°C. It heats the heating system up to +30°C. When this function is active, the abbreviation “AFr” is displayed on the screen. After this function is performed, the boiler returns to standby mode. The purpose of this function is to prevent the freezing of the water heat carrier in the boiler and the heating system.
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Pump and Three-Way Valve Protection Function (PPr)
The pump and three-way valve protection function activates in standby mode once a day if the boiler has been inactive for an extended period. It turns on the pump and the three-way valve for one minute. This procedure is necessary to maintain the stable operation of these system components.
