HARVIA PRO D2

CONTROL UNIT HARVIA PRO D2

Harvia Pro D2 is a professional sauna control unit with intelligent electronics, designed for commercial and intensive use. The system focuses on precise control of temperature, time, lighting, and ventilation, as well as long-term stable operation under high loads. The controller features a modern flat body with a thickness of approximately 4 cm, a clear digital display, and an intuitive interface, making it an ideal solution for hotels, SPA complexes, and fitness centers.

Product Features

• Two-component system with the possibility of connecting up to two panels in one network
• Intelligent PI regulator to maintain a stable temperature without fluctuations
• Maximum switching capacity for the main heating system up to 10,5 kW
• Lighting and ventilation control with switching and dimming functions (up to 100 W)
• Additional output channel for IR heaters (3,5 kW or 500 W)
• Commercial operating modes with heating times of 6, 12, 18, or 24 hours
• ECO mode for optimizing energy consumption
• Support for systems with one or two temperature sensors
• Possibility of centralized control via RS485 converter and the Sentio Pronet system
• Support for individual user profiles

Advantages

• Professional solution adapted to the needs of the commercial segment
• High operational reliability due to phase-rolling of relays
• Precise adjustment of temperature and time parameters to the minute
• Flexible panel installation inside or outside the sauna without loss of accuracy
• Possibility of power expansion and integration into complex automation systems
• Compact modern design that easily fits into the interior

Technical Specifications

• Switching power: up to 10,5 kW (main)
• Additional load: up to 3,5 kW (for Pro D2i version)
• Power supply: 400 V 3N~
• Operating time range: 6 / 12 / 18 / 24 hours
• Peripheral control: light and ventilation up to 100 W
• Panel body thickness: approx. 40 mm
• Interface: digital display with output status indication
• Remote start: via potential-free (dry) contact

Application

Harvia Pro D2 is used in public and commercial saunas with high traffic: in hotels, SPA centers, and wellness clubs. The control unit is suitable for managing traditional electric heaters as well as combined systems with IR panels. Due to the possibility of remote placement and integration into a common control bus, it is the standard choice for large infrastructure projects.

Result

Using Harvia Pro D2 ensures stable, predictable, and energy-efficient sauna operation. You get professional-level microclimate management where all parameters are under precise control, and the equipment is protected from premature wear even during 24/7 operation.

Ideal for

• designing commercial and public saunas
• facilities requiring continuous heating for up to 24 hours
• flexible management of complex systems (heating, light, ventilation, IR)
• integrating sauna control into the building's general monitoring system