S&P SILENT CHZ DESIGN Serie Bedienungsanleitung Seite 15

level for a very long time. To prevent 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 extractor keeps
switched off during the set time for in-
terval function. If the humidity 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 func-
tion, 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 interval
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 extractor
start-up for a period of 50 seconds.
So that, for example, the fan does not
switch on if the usage time of the bath-
room is less than 50s. If you exceed the
50s and the humidity level in the room
is below the selected level, the fan
switches on, and when the light switch-
es 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
SILENT-100 CHZ DESIGN 12V
For this models use the diagram (Fig.6)
(Fig.7)
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