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Electrical connection
The SILENT is an extractor designed for a
single phase supply, with voltage and fre-
quency as indicated on the rating plate of
the unit. The units are manufactured with
double electrical insulation.
(Class II) and therefore they do not need
an earth connection.
The electrical installation must include a
double pole switch with a contact clearan-
ce of at least 3 mm.
The electrical cable must enter the SI-
LENT through the cable entry (4).
Once the cable has been introduced pro-
ceed using the electrical wiring diagram
applicable to the selected model.
SILENT CZ
For these models use the following dia-
grams:
Fig.3: Switching the extractor through the
light switch.
Fig.4: To switch the fan through an inde-
pendent switch.
SILENT-100 CZ 12V
For this models use wiring diagram fi g.12.
SILENT CRZ
This model is provided with an adjustable
over-run timer. The timer allows the fan to
continue to operate for the selected period
after the switch has been turned off (fi g.6).
Model provided with a 4 positions adjus-
table electronic timer: Fig.5 shows how
to connect t he fan with timer utilising the
same switch as for the lighting circuit.
To set the timer, turn the potentiometer
on the printed circuit board as (fi g. 7).
• To reduce the "run on" time, turn anti-
clockwise (min. 1 minutes).
• To increase the "run on" time, turn
clockwise (max: 30 minutes).
SILENT-100 CRZ 12V
For this models use wiring diagram fi g.13.
SILENT-100 CRIZ (this version is only
available as SILENT-100)
This model is provided with an adjustable
over-run timer. The timer allows the fan to
continue to operate for the selected period
after the switch has been turned off (fi g.6).
ATTENTION: The product also includes
an over-run timer facility that starts the
fan after the fi rst 50 seconds of non- ope-
ration. After these fi rst 50 seconds the
fan operates automatically.
Model provided with a 4 positions adjus-
table electronic timer:Fig.5 shows how
to connect the fan with timer utilising the
same switch as for the lighting circuit.
To set the timer, turn the potentiometer
on the printed circuit board as (fi g. 7).
Position Auto:
• If the period of operation is less than
50 seconds then the over-run timer will
not operate.
• If the period of operation is more than
50 seconds then the over-run timer will
operate in accordance to the period of
operation (with a maximum of 30 mi-
nutes). .
Position 5': .
5 minutes "run on" time .
Position 20': .
20 minutes "run on" time .
Position 30': .
30 minutes "run on" time.
SILENT CHZ
Models provided with an electronic humi-
distat which can be adjusted from 60% to
90 % RH (relative humidity) and with a ti-
mer, adjustable between 2 and 20 minutes.
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