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Air connection
The regulators for bathroom intakes
blanking plugs are fitted by pressing them onto the
fan casing and they are interchangeable. It is possible
to identify the two different regulator valves of the
regulators (15 m
3
/h or 30 m
The vents for the bathrooms, (
(
125) must be connected to the air extract with
Ø
ducts (use only 30m
3
/h valves in the U.K.).
Room
high rate
Kitchen
13 l/s
Utility room
8 l/s
Bathroom
8 l/s
Sanity
6 l/s**
accommodation
These ducts must run as straight as possible, with a
a minimum length of 1.5 m of ducts for each extract.
Ensure the pipes are positioned correctly on the
regulators.
Whole building
ventilation rate
a b
(l/s)
Connect the air outlet
external extraction grille.
Typical applications
Fig. 4÷6
Installation
Fig. 7÷13
Note for the installer: the vent with relative humidity
sensor must be connected to a hose from a
bathroom.
80 and the
Ø
3
/h) by their shape (fig. 2).
80) and kitchen
Ø
Continuous extract
Min
Min low rate
Total extract rate
must be at least
the whole building
ventilation rate
Number of bedrooms
in dwelling
1
2
3
4
13
17
21
25
125 to a roof terminal or an
Ø
Configuration
According to dimensions of the room to ventilate, the
installer can chose between two different configura-
tions:
1)Vmed+Vmax factory settings), for big flats, i.e kit-
chen+3 bathrooms
2)Vmin+Vmax, for small flats, i.e. kitchen+2 bathroom
Make the cabling according to the following schema-
tics:
Sensor adjustment: the device has two sensors
installed on the kitchen vent (the one with diameter
125 mm) and on one of the 5 vents with diameter 80
mm. The relative humidity threshold value, above
which the device will automatically switch to Vmax,
can be adjusted. The value can be set between 60%
and 90%: to do so, remove the blanking plug (fig.14),
insert a screwdriver and turn the trimmer, following the
instructions, up to the value of the set level.
Electrical connections
Fig. 15÷18
Use
The device operates continuously. If the set humidity
threshold is exceeded during normal machine
operation at Vmin Config. 2) or at Vmed config. 1,
factory setting), the appliance will automatically switch
to Vmax after approximately 1 minute. The machine will
automatically return to the previous speed once the
5
relative humidity level has been restored back below
the set threshold.
The user can also utilise the external switch to force
29
device operation to Vmax. In this case, the sensors
will be deactivated until the user's subsequent reset of
the previous speed.
Maintenance / cleaning
Fig. 19÷27
9
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