ST-19 Tech pump controller controllers
Goal
The ST-19 anti-stall controller is designed to control the central heating water circulation pump. The set temperature is set using a potentiometer. The controller's task is to: turn on the pump when the temperature reaches the set value, and turn it off when the furnace cools down 2°C below the set value.
Operating principle
The ST-19 anti-stop controller is designed to control the central heating water circulation pump. The set temperature is set using a potentiometer. The controller's task is to: turn on the pump when the temperature reaches the set value, and turn it off when the furnace cools down by 2°C below the set value. This operating mode prevents unnecessary pump operation, which saves electricity, extends the pump's service life and increases its reliability. The St-19 controller also has an additional ANTI-STOP function that prevents the circulation pump from stagnating in the off-season (the pump turns on for 1 minute approximately every 10 days).
Functions performed by the controller
- central heating pump control
- anti-stall function
Controller equipment
- central heating temperature sensor
- potentiometer for setting the set temperature
Technical specifications
| Parameter | Unit of measurement | Value |
| Power source | V | 230V +/-10% /50Hz |
| Maximum power consumption of the controller program | W | 2 |
| Ambient temperature | °C | 5÷50 |
| Maximum pump output load | A | 1 |
| Temperature setting range CO | °C | 25÷85 |
| Hysteresis | °C | 2 |
| Measurement accuracy | °C | 1 |
| Sensor temperature. Resistance | °C | from -30 to 99 |
| Fuse insert | A | 1,6 |
| Sensor cable length | m | 1,5 |
| Temperature measurement range | °C | 0÷85 |
5
