HARVIA PRO B3

HARVIA PRO-B3 — CONTROL UNIT FOR ELECTRIC SAUNA HEATER

The PRO B family from sentiotec/Harvia is engineered to meet the rigorous demands of commercial sauna environments. The PRO-B3 control unit is the ideal solution for Combi heaters in hotels and public wellness centers. It provides effortless management of both temperature and humidity through a clear selection menu, ensuring long-term reliability thanks to high-quality materials.

Product Features

• Control of Combi heaters (heat + evaporator)
• Digital display for temperature and humidity levels
• Control of the electric heater up to max. 10,5 kW
• Integrated RS485 interface for PRO Net remote access
• Compatible with additional power units for higher outputs
• Connection for safety devices and door sensor systems
• Support for one or two-sensor operation

Advantages

• Commercial-grade durability: Built for continuous use under load
• Climate versatility: Easily switch between dry and humid sauna modes
• Remote management: Full Internet compatibility when paired with PRO Net
• Energy efficiency: Built-in Eco mode to optimize power consumption
• Potential-free start: Secure remote activation of the system
• User-friendly: Logical menu structure for efficient staff operation

Technical Specifications

• Maximum switching load: 10,5 kW
• Maximum evaporator performance: 3,5 kW
• Power supply: 400 V 3N~
• Humidity adjustment range: 0 to 100 %
• Operating time limit: 6, 12, 18, 24 h
• Protection class: IPX4
• Light and fan output: max. 100 W per channel

Application

Specifically designed for commercial wellness zones, hotels, and large premium residential projects. It excels in managing electric sauna heaters with integrated steam functions to offer guests a versatile experience.

Result

Precise maintenance of the desired microclimate and high operational stability. The unit simplifies facility management while providing users with a top-tier sauna experience.

Ideal for you

• If you operate a Combi electric sauna heater
• If you manage a high-traffic public or commercial sauna
• If you require remote monitoring and Internet connectivity
• For projects demanding professional-grade electronics and durability