Harvia CX30C-U3 Xenio Digital Control – For Virta Combi 3-Phase Heaters

The Harvia CX30C-U3 Xenio Digital Control is a precision touch-screen control system engineered specifically for Harvia Virta Combi 3-phase sauna heaters.

Designed for Combi heaters with integrated steam functionality, the CX30C-U3 allows independent control of both the heater and steamer, providing accurate regulation of temperature and humidity. The modern touch interface offers a clean, intuitive user experience while maintaining the reliability and performance expected from Harvia.

Compact yet powerful, the control panel can be installed inside or outside the sauna room — including shower rooms, dressing areas, or adjacent living spaces — offering flexible placement options.

Built for up to 10.8kW heaters, this control unit delivers advanced functionality for users seeking precise climate control and full Combi system management.

Sauna heater sold separately.

• Designed for Harvia Virta Combi 3-phase sauna heaters

• Compatible with heaters up to 10.8kW

• Independent heater and steamer control

• Regulates temperature and humidity

• Controls timer delay settings

• Controls lighting and fan systems

• Modern touchscreen interface

• Wall-mounted or surface embedded installation

• Compact design for flexible placement

• 208V, 3-phase configuration

• 1-year limited warranty (consumer & commercial use)

• Harvia CX30C-U3 Control Panel

• Temperature Sensor

• Humidity Sensor

• Power Unit

• Installation & Operation Manual

• 1-Year Limited Warranty

• Compatible Harvia Virta Combi 3-phase sauna heater

• 208V, 3-phase electrical supply

• Professional electrical installation

Which Harvia Combi Control Do I Need?

Choosing the correct control depends on your sauna heater’s voltage and phase configuration.

Choose CX30C-U1-XW if:

• Your heater is 240V

• Your electrical setup is 1-Phase

• You want WiFi connectivity for remote control

• Your Virta Combi heater is rated up to 12.7kW

This is the most common configuration for residential installations in the United States.

Choose CX30C-U3 if:

• Your heater is 208V

• Your electrical setup is 3-Phase

• Your Virta Combi heater is rated up to 10.8kW

• You do not require WiFi remote operation

This configuration is typically used in commercial or higher-capacity installations.

 Important

The control must match:

• Heater model

• Voltage

• Phase

Improper selection may result in incompatibility or installation issues. If you are unsure of your electrical configuration, consult a licensed electrician before purchasing.

Manual Links:

• Harvia Warranty

• Harvia Required Elements
  

• Harvia Xenio Combi-Control CX30C IOM Owners Manual