
Modbus TCP
Kermi x-center pro
Kermi
Overview
The Kermi x-center pro is a wall-mounted heat pump controller that manages the Kermi x-change heat pump, providing heating, cooling, and domestic hot water control via a 7-inch touchscreen. This ModbusCloud template connects over Modbus TCP and reads current power consumption, measured temperature, and the active temperature limit. It also exposes the PV surplus power setpoint register, enabling solar self-consumption control. Monitoring these values in your portal gives installers and building managers a clear view of heat pump operating state without manual on-site checks.
Use cases
- Monitor current power consumption to verify the heat pump operates within expected load ranges.
- Track the measured temperature register to detect sensor drift or unexpected operating conditions over time.
- Alert on temperature limit register changes to catch controller reconfiguration events quickly.
- Write PV surplus power values to the setmaxpower register to steer the x-change compressor using solar generation.






