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The EU-19 regulation is intended for controlling the central heating (DH) circulation pump. The set temperature is set using a potentiometer. The task of the regulation is to turn on the DHW pump when the temperature reaches the set value, and turn it off when the boiler temperature drops by 2°C below the set value. This mode of operation prevents unnecessary operation of the pump, thereby saving electrical energy, extending the life of the pump and increasing its reliability. The EU-19 regulation also has an ANTISTOP function, which protects the circulation pump against freezing outside the heating season (the pump is switched on approximately every 10 days for 1 minute).
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