Sauna Operating Modes; Sensor Operating Modes - Sentiotec Pro D Montage- Und Gebrauchsanweisungen

Instructions for installation and use p. 12/31

3.4. Sauna operating modes

The sauna control unit Pro D2 / Pro D2i enables sauna mode. The sauna control
unit Pro D3 / Pro D3i 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
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 13).

3.5. Sensor operating modes

The sauna control units of the Pro D series can be operated with one or two sen-
sors. A temperature sensor (bench sensor F2) or a humidity/temperature sensor
(FTS2, Pro D3 / Pro D3i only) can be used as the second sensor.
Single sensor mode (F1)
Single sensor mode is the factory setting.
In single-sensor mode, the sauna control unit is operated with the heater sensor
with overheat cut-out (F1) only. This is included in the scope of delivery.
The sauna control unit displays the actual temperature by default. The set tem-
perature is displayed during setting. If it is to be permanently displayed it must be
activated during commissioning (see "Temperature/humidity display (actual/
set value)" on page 31)
The maximum humidity level (only Pro D3 / Pro D3i) which can be set in sin-
gle-sensor mode is based on the temperature above the heater and the humidity
is timed. Only the setpoint for the humidity (in % relative humidity) is shown on
the display of sauna control unit. The actual humidity in the sauna cabin when
the humidity is timed depends on the size of the cabin and the vaporizer output,
and may differ from the setpoint.