EN
31
QF
: Automatic fuse
S
: External power switch
*: Fan for 12 V (marked on fan casing) can only be connected to
12 VAC.
INSTALLATION
The appliance is intended for installation in a wall or ceiling, for
connection to round duct with specified diameter (fig. 1). The
appliance is intended for continuous operation and permanent
connection to the mains supply.
The air flow in the system must correspond to the arrow on the
fan casing.
1. Disconnect the power supply and prepare the installation
area (fig. 2–3).
2. Remove the front cover from the appliance (fig. 4).
3. Mark out and drill the screw holes and fit the appliance (fig.
5–7).
4. Connect the fan to the mains and set a delay and humidity
sensor, if necessary (fig. 8–14).
5. Replace the front cover (fig. 15).
6. Switch on the automatic fuse (fig. 16). NOTE: The figures
show a fan in the M series.
