Charge boiler controller

The ST–81 temperature controller is designed for charging central heating boilers. It controls the central heating water circulation pump, the hot water pump and the fan. Four pump modes to choose from: home heating, boiler priority, parallel pumps, summer mode. The controller housing is adapted for installation under the boiler body.

Functions performed by the controller:

• Fan control
• CH pump control
• DHW pump control
• possibility of connecting a room regulator

Controller equipment:

• Lcd
• CO temperature sensor
• DHW temperature sensor
• temperature protection (thermal)
• panel housing for boiler installation or in metal housing

Product parameters

• Power supply, V, 230V +/-10% / 50Hz
• Maximum driver power consumption, W, 5
• Ambient temperature, °C, 5÷50
• Maximum load of pump output CO, A, 0,5
• Fan output load, A, 0.6
• Max. load of DHW pump outlet, A, 0,5
• Accuracy, °C, 1
• Temperature setting range, °C, 45÷80
• Sensor Temperature Resistance, °C, -25÷90
• Fuse insert, A, 2×3,15
• Temperature Range, °C, 0÷90