1515
EN
“Interval” functions
This function is useful when the ex-
tract fan is installed in very wet (near
the sea) or the ambiance exceeds the
set level for a very long time. To pre-
vent the fan to run for hours without
stopping, the “Interval” function allows
the fan to switch off automatically one
hour after it began to run. The extrac-
tor keeps switched off during the set
time for interval function. If the humid-
ity level is still above the set level when
the time interval is over, the extract fan
switches on again and run during one
hour. To select this function put the
dip-switch 1 to position “ON”.
To adjust the set time for interval
function, use the dip-switches 2 and 3.
When, on the contrary, the extract fan
never switches on because the humid-
ity level is always very low or it is im-
properly installed (above heating appli-
ance, behind a door, in an area with no
air movement) putting the 1 dip-switch
interval function to position “ON”, the
fan switches on automatically during
1 hour and then it keeps switched off
during the set time for interval func-
tion. This function causes the fan to run
whatever the humidity level.
To select this function put the dip-
switch 1 to position “ON”.
To adjust the pre-set time for inter-
val function, use the dip-switches 2
and 3.
Automatic operation with external
switch to override the extractor
(Fig.3) (Fig.7)
The extractor is connected to the
main supply with three wires.
Operation as previous “Automatic op-
eration”, with the facility to override
the humidistat by means of the light
switch when the humidity level in the
room is lower than the selected level.
In this case the extractor continues
to operate for the selected period of
time (over-run timer) after the switch
light has been switched off.
ATENTION: When the humidity rate
is above the selected value, the au-
tomatic option takes precedence
over the manual and the unit cannot
then be switched off using a switch.
Start-up timer function
In this operation, the “start-up timer
function” allows to delay the extrac-
tor start-up for a period of 50 sec-
onds. So that, for example, the fan
does not switch on if the usage time
of the bathroom is less than 50s. If
you exceed the 50s and the humidi-
ty level in the room is below the se-
lected level, the fan switches on, and
when the light switches off, runs the
time set by the timer.
This function is selected with the dip-
switch 8.
Factory settings
– Interval function: OFF
– Interval time: 4h
– Humidistat: 60%HR
– Timer: 1 minute
– Start-up timer function: OFF
SILENT100 CHZ 12V
For this models use the diagram
(Fig.6) (Fig.7)
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