ST-19 Central Heating Pump Controllers with ANTI-STOP Function

ST-19 Anti-Stop regulator is intended for control of the pump of the central heating water circulation. The set temperature can be adjusted by using a potentiometer. The controller's task is to switch the pump on when the temperature reaches the set value and to switch the pump off when the boiler cools down 2°C below the set value. Such a functioning mode prevents unnecessary operation of the pump, which allows to save electric energy and prolongs life of the pump as well as improves its reliability. ST-19 controller also has an additional anti-stop function which prevents too long period of the circulating pump's operation standstill after the season (the pump is switched on approx. every 10 days for 1 minute).