* This setting rotates the display only; the buttons retain their original function. For example; the
mode button is on the right when in normal rotation and on the left when the screen is rotated and
looking at the fan so the display is correctly orientated.
The table shows the settings available to commission the fan. They appear in this order
starting with the bathroom or kitchen mode selection. The available options and default
position for each setting is also shown.
Settings
Installation selection
There are four different installation type settings, kitchen or bathroom and ducted or
window/wall. The difference between bathroom and kitchen mode is shown below, the boost
speeds are higher for kitchen applications. If the fan is installed in a ducted setup changing
the fan to ducted mode will compensate for the reduced airflow due to the higher pressure of
the system. During commissioning select the relevant setting for your installation.
Boost time
The boost setting allows the boost timer to be adjusted from 1-30 minutes, the default is 15
minutes.
Humidity level trigger
The humidity setting defines at what relative humidity the fan will trigger, adjustable from 50%
to 70% rH.
Comfort mode
Comfort mode changes how the fan boosts. Normally the fan will go into boost as soon as an
LS input is detected and over run for the set period when LS is disconnected. In comfort
mode the fan will not boost until the LS has been on for 5 minutes, preventing nuisance
noise. After 5 minutes of LS being on the fan will run in boost as long as LS is on and for the
over run time after LS is switched off. If the LS is switched off before 5 minutes the fan will not
boost. This mode does not affect the pullcord operation, pulling the pullcord will still activate
boost.
50% to 70% relative humidity
operation
This adjusts the impeller speed to give the required airflow with a high duct pressure
This adjusts the impeller speed to give the required airflow at a low duct pressure
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