Differential Thermostat DT-3.2.1

The solar controller DT3.2.1 is integrated into domestic hot water systems in boilers, combined with solar panels (fireplaces) and electric heaters.
It is designed to monitor the differential temperature and to control the operation of a circulation pump mounted in the water circuit between the panels (fireplace, boiler) and the boiler coil.
This regulates the heat exchange between them, helping to make the system more efficient.