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ii.
Setting all of those 3 switches to the left (off positions) will switch off the constant trickle
option (i.e the fan will normally be off and will switch to boost when the Pullcord, PIR, LS
or Humidity Sensor are activated).
2. SELECTING THE BOOST SPEED (15, 30 or 60 l/s)
This will determine the speed at which the fan will run when activated by either the Pullcord, PIR,
LS, or Relative Humidity Sensor.
i.
Slide one of the three switches marked as 'Boost Speed' in fig.7 to the right (on position)
to select that flow rate for boost speed.
3. TIMER ADJUSTMENT
The overrun time period is the length of time that the fan will continue to run at boost for after the
LS connection is switched off or the PIR (Quadra TM only) stops sensing movement. It is factory
set to approximately 15 minutes. The overrun time period may be adjusted from approximately 1-
30 mins by altering the adjuster on the control PCB. (figs.4 & 7).
i.
To REDUCE the operating time, turn the adjuster ANTI-CLOCKWISE.
ii.
To INCREASE the operating time, turn the adjuster CLOCKWISE.
4. RELATIVE HUMIDITY ADJUSTMENT (HTP model only)
The fan's Relative Humidity (RH) Set-Point is factory set to switch the fan on at about 72%RH.
i.
To LOWER the Set-Point, turn the Humidity Adjuster (figs.4 & 7) ANTI-CLOCKWISE. This
makes the fan more sensitive to RH%, i.e. the fan will come on at a lower RH%.
ii.
To RAISE the Set-Point, turn the Humidity Adjuster (figs.4 & 7) CLOCKWISE. This makes
the fan less sensitive to RH%, i.e. the fan will come on at a higher RH%.
C. WIRING.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE
ISOLATED FROM THE POWER SUPPLY DURING INSTALLATION OR
MAINTENANCE.
Use 0.75mm
1.
Select and follow the appropriate wiring diagram (figs. 9 & 10).
2.
Additional controls, such as room mounted humidistats, pullcords, PIR sensors and
normal/boost switches, can be connected to the LS connection instead of the room lighting
circuit in fig 10 in order to make the fan boost. These accessories must switch a 240V 50Hz
live connection on when boost is wanted.
3.
Use the Cable Clamp provided.
4.
Check all connections have been made correctly and ensure all terminal connections are
securely fastened.
D. SERVICING AND MAINTENANCE.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE
ISOLATED FROM THE POWER SUPPLY DURING SERVICING OR
MAINTENANCE.
1.
At intervals appropriate to the installation, the fan should be inspected and cleaned to ensure
there is no build up of dirt or other deposits.
2.
If you have a Filter (fig.3), remove it by using a small, flat bladed screwdriver to lift the bottom
edge over the retaining edge (fig.2) and then slide the filter out.
3.
Remove the Cover assembly by slackening the two cover screws (fig.2) by two turns and pull
it away. The Quadra has a built in safety feature. The motor will not run if the small round
magnet in the Cover is not detected (when the Cover is not fitted).
2
cable
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