Envirovent SILENT DUAL Instruction Leaflet page 9

The humidity control takes priority
!
over the PIR detector.
The PIR detector has priority over
the permanent control of the
environmental conditions.
Depending on the initial setting, you can
choose between two operation modes,
either intermittent or continuous
Intermittent operation
To select this operation, place the
dip-switch "1" in the "ON" position.
1 2
The extractor fan will stop.
The extractor starts automatically when a
slow increase in humidity is detected. It
starts at a speed that is in direct proportion
to the humidity level in the room until the
level returns to the start-up threshold.
The extractor also starts automatically at
medium speed (75% of the maximum
speed) when movement is detected and will
continue to operate for the length of time set
by the adjustable "run-on" timer, after being
triggered by the PIR.
Two set periods are available:
2 minutes and 15 minutes.
To select the set period of the "run on" timer,
place the dip-switch "2":
in "OFF" position for 2 minutes
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in "ON" position for 15 minutes.
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If no more movement has been detected
once the run-on time, set by the timer is
passed and the humidity level is below the
start-up threshold, the extractor stops
automatically.
If the extractor detects a rise in humidity
(shower), the fan is boosted to high speed
and operates at this speed until the humidity
level drops below the start-up threshold
level.
Continuous operation
To select this operation, place the
dip-switch "1" in the "OFF" position.
1 2
Operation is similar to intermittent operation
with the difference that the extractor does
not stop but runs continuously on trickle
speed (43% of the maximum speed).
Maintenance
Fan equipment should be electrically
isolated and locked out before any work
starts.
The extractor fan only requires periodical
cleaning using a cloth lightly impregnated
with a soft detergent.
Recycling.
In accordance with EEC Standards
and our responsibility for future
generations, we are obliged to recycle
all the materials we can.
Therefore, please deposit all waste material
and packaging in their corresponding
recycling containers and hand in the
replaced units to the nearest handler of this
type of waste product.
The fan is mainly made of steel, copper and
plastic. These components should be
recycling in the following categories:
- Steel and iron
- Plastics
- Electronic scrap
After Sales Service
We recommend you do not dismantle or
remove any other parts than those
mentioned, as any
automatically cancel the guarantee. If you
detect any fault, contact EnviroVent on 0345
27 27 810.
Thank you for choosing EnviroVent. If you
experience any problems, please call our
dedicated Technical Team on 0345 27 27
810
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