Installation Instructions
Specifi cations are subject to change without notice
Page 4
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Distributed by Simx Limited
QUIET 150mm Extraction Fan Kit
PUB01531 2103
PRIMARY FAN KIT SWITCHING OPTIONS
Fig 6
Adjustable
Fan Speed
JP2
JP1
Fig 8
LED
Fig 2
Fig 4
Timer Adjustment
Fig 3
Fig 5
Fig 7
Fig 9
Standard Switching
The single speed fan is switched ON/OFF via an existing, or new, light, or auto sensor, switch (switch not
supplied) (Fig 2).
Timer Switching
The single speed fan with timer switching is switched ON/OFF via an existing lighting circuit switch (Fig 3).
Before adjusting the timer, the mains supply must be switched OFF. When switched ON, the fan will operate
at full speed and will continue to run at that speed, for a pre-set time, after the fan is switched OFF.
The fan can be changed from timer to standard switching (Fig 4).
1. Remove the fan grille. The controller is factory set at 15 minutes approx. The overrun time period can
be adjusted from 1-30 minutes by altering the adjuster on the control PCB. Note the exact min/max
time may vary between products.
2. To REDUCE operating time, use a small screwdriver to turn the adjuster (Fig 5) ANTI-CLOCKWISE.
3. To INCREASE operating time, use a small screwdriver to turn the adjuster (Fig 5) CLOCKWISE.
4. Replace the fan grille.
Humidity Control Switching
Humidity control switching is enabled when either an existing, or new, fan switch (switch not supplied), is
switched ON (Fig 5).
An integral humidity controller automatically switches the fan ON when it senses a signifi cant rapid rise in
humidity that may have been triggered by a shower/bath event. The fan will stop immediately if the event
is not confi rmed. However, if the event is confi rmed, then either the preset top speed, or a lower speed, will
be determined as the better option for clearing the humidity created by the shower/bath event and the fan
will ramp up to, and run at, that speed. After sensing that the shower/bath event has ended, the fan will
continue running for a period of time, as sensed by the humidity controller, as needed to clear the room of
any residual humidity.
1. Remove the fan grille. The top fan speed can be set to one of four speeds by altering the fan speed
adjuster on the control PCB. Note the exact speed set points may vary between products.
2. To REDUCE the speed, use a small screwdriver to turn the adjuster (Fig 7) ANTI-CLOCKWISE.
3. To INCREASE the speed, use a small screwdriver to turn the adjuster (Fig 7) CLOCKWISE.
4. Replace the fan grille.
ALTERNATIVE HUMIDITY CONTROL FAN KIT SWITCHING OPTIONS
with blue LED indicator light when switched ON (Fig 9)
Comfort Mode
By changing the wiring connections (Fig 8) the fan can be operated as a single speed fan switched ON/OFF
via an existing, or new, fan switch (switch not supplied).
When comfort mode is switched ON, the humidity control option is disabled and the fan will not run during
a shower/bath event until after comfort mode is switched OFF. The fan will then start, and run, at the
preset top speed, for the same duration that the humidity control option was disabled, to clear any residual
humidity. If, however, comfort mode has not been switched OFF after 20 minutes, the fan will automatically
start, and run, at the preset top speed for 20 minutes before switching itself OFF. The jumper JP1 run-on
timer (Fig 7) can be set to allow the fan to continue running, at the preset top speed, for a further 15
minutes if required.
Fan Switch
For the fan switch option to be enabled,
jumper JP2 (Fig 7) must be removed. Switched ON, the fan will run
at the preset top speed. When switched OFF, the jumper JP1 run-on timer (Fig 7) can be set to allow the
fan to continue running, at the preset top speed, for a further 15 minutes.
Pull Cord Switch
Activated by the pull cord, the fan will operate at the preset top speed for 15 minutes before switching
itself OFF. The fan can stopped running earlier by pulling the pull cord a second time.
