5
in infinite increments. The stop delay
time is counted down from the time the
air exhaust fan senses the indoor lights
are off or turning the separate on/off
switch on to which the air exhaust fan is
connected.
Hygrostat
(part name suffix
‘H’). Connect the air exhaust fan with
the air humidity sensor (hygrostat) and
timer as shown in the electrical wiring
diagram in Fig.3 or Fig.4.
The air humidity sensor operating range
is 40% to 90% of relative humidity. This
accessory option includes the stop delay
timer. The operation of the air exhaust
fan with these optional accessories will
depend on the power supply connection
method. If connected as shown in
Fig.4, the air exhaust fan will start
automatically when the air humidity
level exceeds the start threshold of the
humidity sensor. Next, the air exhaust
fan will stop when the air humidity level
is reduced below the stop threshold, plus
the stop delay time set with the stop
delay timer.
If connected as shown in Fig.3, the air
exhaust fan can also be started with
its standard light sensor or operating
the separate on/off switch. When the
indoor light is on or the on/off switch is
turned off, the air exhaust fan will stop
after the stop delay time set with the
potentiometer if the humidity level in the
room is below the level preset on the
potentiometer. The humidity detection
system is the master system.
NOTE: When the green diode located
in the electronic system is on, it
means that the humidity level in the
room is higher than the preset on the
potentiometer controlling the humidity
level adjustment. As long as the diode
is on, the fan will not start counting
down the stop delay after which the fan
is switched off. It will take place only
after the humidity level in the room
drops and the green diode goes off.
Removable front panel.
It is a possibility to choose the different
front panels to be matched to the
particular interior. These panels are easy
to instal, remove and reinsert without
using any tool.
There are frozen white and black matte
- both made of glass, so as the stainless
steel panel available. Panels are sold
separately.
INSTALLATION
The fan shall only be installed, connected
to electrical mains and commissioned
for use by qualified personnel in
accordance with applicable laws!
Assembly
• Precisely determine where the fan will
be installed.
• Prepare the power cord. Use NYM-O
a maximum outside diameter of 7.5
mm, depending on the version of the
equipment.
NOTE
: Before starting work, make sure
that the power cord is not live.
• Measure and drill holes for the fan and
ø6 mm wall plugs included with the product.
• Remove the front clip-on panel (1).
• Remove the front clip-on frame (2) of
the fan.
• Remove the housing panel (3), which is
fixed with screws (7).
• Run the power cord in double insulation
through the grommet (9). Insert a sufficient
length of the cord so that the wires can
be connected to the power terminals.
Before mounting the fan: remove all
foreign objects from its inside ; check
manually that the fan rotor turns freely;
make sure there is enough clearance
for the outlet check damper to open. It is
