8
PU SENS 01
www.ventilation-system.com
3. Fan speed changeover
• Press the AIR FLOW button to select the desired fan speed.
The unit has four speed stages:
— first speed
— second speed
— third speed
— humidity control mode. The fan speed is regulated depending
on the humidity setting. The unit does not provide additional built-in
humidifiers or dehumidifiers. If the room humidity is higher than the set
level, the unit slowly increases the speed. If the room humidity is lower
than the set level, the unit slowly decreases the speed.
In this way, the humidity is maintained at the set level.
The humidity level is set via the Engineering menu, see para. 14.
• If the AUTO or TIMER mode is activated the current airflow value is
displayed in real time operation no matter of the air flow value set by
means of the AIR FLOW button.
1
• Set the required speed using or .
• Then press ENTER
.
• To return to the Main menu without saving changes press EXIT
.
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