Sensor Operating Modes - Harvia SENTIO Professional D Série Instructions D'installation Et Mode D'emploi

Instructions for installation and use p. 16/70

3.5. Sensor operating modes

The sauna control units of the Pro D series can be operated with one or
two sensors. A temperature sensor (bench sensor F2) or a humidity sensor
(FTS2, only Pro D3/Pro D3i) can be used as the second sensor.
Single-sensor mode (F1)
The single-sensor mode is activated at the factory. For changing this setting:
see "Activating two-sensor operation" on page 36.
In single-sensor mode, the sauna control unit is operated only with the heater sen-
sor with overheat cut-out (F1) only. This is included in the specifications supplied.
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 37)
The maximum humidity level (only Pro D3/Pro D3i) which can be set in single-
sensor mode is based on the temperature above the heater and the humidity
is timed. Only the set humidity level (in % of relative humidity) is shown on the
sauna control unit display. The actual humidity level in the sauna room when
humidity is timed depends on the size of the room and the evaporator capacity,
and may differ from the set level.