Installation
If wall mounting the fan, you will also need:
A 100mm diameter prepared hole.
An appropriate external Wall Grille and Ø100mm wall sleeve duct (supplied). Cut ducting to correct length if required.
The wall tube supplied is telescopic and can be extended to 300mm maximum.
If ceiling mounting the fan, you will also need:
A 100mm diameter prepared hole.
A 100mm diameter prepared hole for the external grille, ideally positioned to allow condensation to run away from
the first bend in the duct towards the external grille.
Appropriate ancillaries for termination. These items are available from Xpelair:
1.
3m flexible ducting Ref: 89663AA. If the duct passes through a cold space use insulated duct ref: 89847AA.
2.
Soffit Grille Ref: 89742AW.
Installing the isolating switch and cables.
Guidelines for maximum cable run between the transformer and fan.
1.
Limited to 0.3 volts drop, corresponding to 1.5% reduction in fan performance.
Flexible
Fixed
Conductor size (mm²)
0.75
1.00
1.50
2.50
Recommended max
cable run (m)
4.50
6.00
9.00
15.00
2.
Limited to 0.5 volts drop, corresponding to 3% reduction in fan performance.
Flexible
Fixed
Conductor size (mm²)
0.75
1.00
1.50
2.50
Recommended max
cable run (m)
7.50
10.00
15.00
25.00
Suitably rated 2 core cable (supply to transformer) LV100R, LV100S, LV100PR, LV100PS, LV100HTR,
LV100HTS, LV100HPTR, LV100HPTS, LV100PIRR, LV100PIRS
Suitably rated 3 core cable (supply to transformer) LV100TR, LV100TS
1.
Check that the electrical rating shown inside the back-plate matches your mains supply.
2.
Check there are no buried pipes or cables e.g. electricity, gas, water behind the switch location (in the wall or above
the ceiling). If in doubt, seek professional advice.
3.
Isolate the mains supply.
4.
Lay in the cable from the isolating switch to the transformer location via the on/off switch (if required).
5.
Lay in the cable from the transformer to the fan location.
6.
Lay in the cable from the isolating switch to the point of connection to the mains supply.
7.
Install the isolating switch and on/off switch (if required).
8.
Make all connections within the isolating switch and the on/off switch (if required).
Warning: Do not make any connections to the electrical supply at this stage.
Wet Rooms: On/Off switch must be situated so that it cannot be touched by
persons making use of the bath or shower.
What the installer will need.
3mm electrician’s screwdriver and No.1 or 2 Pozidrive screwdrivers.
A means for disconnection in all poles must be incorporated in the fixed wiring in accordance with wiring
regulations
If metal switch boxes are used, earthing regulations must be followed.
Suitably rated 2-core cable (wiring from transformer to fan)
