9
OPERATION
9
Pure controller | Installation instructions
3.2 Setting the ventilation level
The intensity of the ventilation can be set in three stages by changing the switch positions. The
ventilation levels are fixed and cannot be changed.
The following ventilation levels are defined:
• Ventilation level 1 – 25 %
• Ventilation level 2 – 50 %
• Ventilation level 3 – 100 %
The new setting takes effect immediately, so that adjustments can be made purely by listening to
changes in the sound level.
Ventilation level 1
Ventilation level 2
Ventilation level 3
• Only the left-hand rocker
switch is pressed
• Only the right-hand rock-
er switch is pressed
• Both rocker switches are
pressed
25 %
1
|
50 %
2
|
100 %
3
|
25 %
1
|
50 %
2
|
100 %
3
|
25 %
1
|
50 %
2
|
100 %
3
|
