Where to locate the fan.
Locate it as high as possible.
At least 110mm from the edges of the mounting surface to the centre of the hole.
As far away as possible from and opposite to the main source of air replacement to ensure airflow across
the room (e.g. opposite the internal doorway).
Near the source of steam or odours.
Not where ambient temperatures are likely to exceed 50°C.
If installed in a kitchen fans must not be mounted immediately above a cooker hob, or eye level grill.
If installing in a room containing a fuel burning device which has a non-balanced flue, it is the
installer's responsibility to ensure that there is enough replacement air to prevent fumes being
drawn down the flue when the fan is operating up to maximum extract. Refer to Building Regulations
for specific requirements.
Exhaust air must not be discharged into a flue used for exhausting of fumes from appliances supplied
with energy other than electric. Requirements of all authorities concerned must be observed for
exhaust air discharge and intake flow rates.
Not suitable for use in possible chemical corrosive atmospheres.
LV100PIRR / LV100PIRS Only – Siting must ensure detection of movement. Care should be taken to
avoid obstruction that may affect detection beams – See Figure B.
Transformer.
In a loft or any convenient position on a wall (not suitable for ceiling mounting).
The transformer must
not be covered by loft insulation.
When wall mounting, the transformer must be oriented as shown in diagram G to fulfil ingress
protection requirements
Not within 0.6m of a bath or shower cubicle, up to a height of 2.25m
Not where ambient temperatures are likely to exceed 40°C
Wiring and setting up
I2
