Instructions for installation and use p. 10/38
Overheat cut-out
The overheat cut-out is installed in the housing for the heater sensor. If a
defect causes the sauna heater to continue heating after reaching the pre-
temperature of around 139 °C.
PRO B3
Same functional scope as the PRO B2, with the following additional features:
Regulation of combi heaters with a heating output of up to 10.5 kW and va-
porizer output of up to 3.5 kW in the temperature range spanning 30 °C to
110 °C and a humidity range spanning 5% to 100 %.
Post-drying program
After operation in combined mode, the post-drying program starts automat-
ically to prevent mould or rot from forming in the sauna cabin. This involves
heating the sauna cabin to 80°C with the fan running.
The duration can be set from OFF - 60 minutes.
3.4. Sauna operating modes
The sauna control unit PRO B2 enables sauna mode. The sauna control unit
PRO B3 enables two operating modes, sauna mode and combi mode.
Sauna mode
Dry heat is provided in sauna mode. The temperature in the cabin is high (80 to
100°C). The humidity is low (no more than 10%).
Combi mode (PRO B3 only)
In combined mode, the vaporizer operates along with the heater. The temper-
ature in the sauna cabin is lower (around 40 to 65 °C) than in sauna mode, but
the relative humidity is much higher, ranging from 35% to 70%. The maximum
humidity that can be set depends on the temperature of the sauna. The higher
the sauna temperature, the lower the maximum humidity level which can be set
(see characteristic curve on page 11).
