4 Installation options
The fan can be installed in any of three ways
depending on the desired function, as detailed below:
1 Humidity control only, see diagram 1
The fan is connected to constant phase (L) and
neutral (N) for automatic humidity control.
The timer can be activated manually by installing a pull
cord and pulling it (see page 8).
2 Humidity control + timer with light switch, see
diagram 2
The fan is connected to constant phase (L) and
neutral (N) for automatic humidity control.
Switched live (SL) is connected to activate the fan's
timer, i.e. when the bathroom light is switched on, cur-
rent is present at switched live. This option provides a
90-second start delay.
3 Humidity control + timer with retractive switch, see
diagram 3
The fan is connected to constant phase (L) and
neutral (N) for automatic humidity control.
Switched live (SL) is connected to activate the fan's timer
using a retractive switch.
This option gives direct start-up of the fan.
Wiring diagram
1
1
SL N L
SL N L
L
L
L
N
N
N
2
SL N L
SL N L
L
N
2
L
L
N
N
SPEED
TIMER
S
CONSTANT
SPEED
TIMER
5
MIN
15
30
TIMER
S
CONSTANT
HUMIDITY
TIMER
SILENT
5
MIN
15
MAX
30
HUMIDITY
SILENT
MAX
3
3
SL N L
SL N L
EN
7