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Installing the Fan
These appliances are intended for connection to fixed wiring.
Check that the electrical rating shown on the fan matches the mains supply.
WARNING: THESE APPLIANCES MUST BE EARTHED.
All installations must be supervised by a qualified electrician.
Installations and wiring must conform to current IEE Regulations (UK), local or
appropriate regulations (other countries). It is the installer’s responsibility to ensure that
the appropriate Building Codes of Practice are adhered to.
If you have any queries before installing these products or after they have been installed,
call the Xpelair Technical Hotline +44 (0) 8709 000430. Our engineers are there to help
you during normal office hours (UK only) and may be faxed at all other times +44 (0) 8709
000530.
Customers outside the UK please contact your local Xpelair distributor.
1. Description
The PX6/9/12 models have the following features:
• Can be flush mounted in a Ceiling or Panel.
• Trickle ventilation setting.
• Fitted with silent operation back draught shutters.
• For remote switch operation.
PX6
• Single speed extract operation.
PX9/12
• The PX9/12 fans can extract, intake or ‘open shutter only’ using an integral Fan selector
switch.
• Can be installed with a controller.
If used with a speed controller, these fans can intake or extract at selected speeds or at variable
speeds depending on the type of controller. If used with an on/off switch, these fans will intake
or extract at high speed only.
2. What the installer will need
• A double pole isolating switch with a minimum contact gap of 3mm (Ceiling or Panel
mounted).
• If metal switch boxes are used, earthing regulations must be followed.
• Suitably rated 3-core cable (see ‘Installing switches and cables’ section).
• 6mm blade large screwdriver, 3mm blade electrician’s screwdriver and No. 1 & 2 Pozidriv
screwdrivers.
If installing the fan with an on/off switch:
• On/Off switch
If installing the fan with a controller (PX9/12 only):
• Suitably rated 5-core cable. Note: Please check instructions for the controller.
3. Where to locate the fan
• Locate it as high as possible.
If installing a PX6:
• At least 200mm from the edge of the wall or ceiling to the centre of the hole.
If installing a PX9:
• At least 255mm from the edge of the wall or ceiling to the centre of the hole.
If installing a PX12:
• At least 280mm from the edge of the wall or ceiling to th e 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 exhau sting 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.
• If the fan is intended to intake air, the inlet grille should be sited at a distance of at least
0.5 meters from the discharge outlet of a flued heating or cooking appliance.
• When intended for use in possible chemical corrosive atmospheres, consult our Technical
Service Department. (For overseas market contact your local Xpelai r distributor).
• This electrical product, if installed in a shower room or bathroom must be situated so
that it cannot be touched by persons making use of the bath or shower.
4. Installing the switches and cables
1. Check there are no buried pipes or cables e.g. electricity, gas, water behind the switch
location (In the panel or above the ceiling).
2. Lay in the cable from the isolating switch to the fan location via the on/off or controller if
required.
3. Lay in the cable from the isolating switch to the point of connection to the mains supply.
WARNING: DO NOT MAKE ANY CONNECTIONS TO THE ELECTRICAL SUPPLY
AT THIS STAGE.
4. Install the isolating switch and the on/off switch or controller if required.
5. Make all connections within the isolating switch and the on/off switch if required.
Note: Switches must be so situated that they cannot be touched by persons making use of
the bath or shower.
For Australia only
These models are permanently connected to the supply and operation is controlled by a remote
switch. They should be directly wired to the supply through an approved 10A wall mounted
surface switch with at least 3mm clearance between contacts.
5. Preparing the hole
If working above ground floor level, appropriate safety precautions must be observed.
WARNING: EYE PROTECTION MUST BE WORN DURING ALL DRILLING
OPERATIONS.
For Installing in a panel /ceiling
1. Check there are no buried pipes or cables behind the panel or obstructions on the
outside e.g. electricity, gas, water.
If installing a PX6:
2a. Make sure that the centre of the hole is located at least 200mm from the edge of the wall or
ceiling.
If installing a PX9:
2b. Make sure that the centre of the hole is located at least 255mm from the edge of the wall or
ceiling.
If installing a PX12:
2c. Make sure that the centre of the hole is located at least 280mm from the edge of the wall or
ceiling.
3. Mark the outline of the hole on the wall (for hole dimensions see Fig A ).
4. Drill pilot holes around edge of the cutting line.
5. Cut through the panel or ceiling using a jigsaw.
6. Separating the inner grille and fan from mounting box
If installing a PX6:
1. Remove the inner grille assembly by removing the 2 screws G1 (8) securing the inner grille
assembly to the fan mounting box.
2. Remove the two screws securing the fan assembly to the fan mounting box.
If installing a PX9/12:
1. Remove the inner grille by removing the 4 screws G2 (8).
2. Remove the back draught shutter by unclipping it G2 (5).
3. Unscrew the 4 cross-headed screws and lift off the fan assembly G2 (2)
7. Mounting the fan mounting box.
If working above ground floor level, appropriate safety precautions must be observed.
1. Offer up the fan mounting box to the panel or ceiling face and mark the position of the 4
mounting holes.
2. Drill holes and fit appropriate plugs.
3. Screw fan mounting box to panel or ceiling (If necessary apply a sealing mastic to the flanges
of the fan mounting box. This will provide additional seals and take out any unevenness on both
faces).
4. Ducting and appropriate terminations can be attached to the fan box as required.
5. Position and secure the fan duct assembly into the fan mounting box, using the fixing screws .
Do not overtighten the screws.
8. Wire the electrical connections
If installing a PX6:
1.Wire the switch cable into the fan’s terminal connector as shown in diagram B2.
2a. If the Fan is wired from above, remove the fan’s Terminal cover and feed the cable through
the top cable entry. Ensure the outer sheath of the cable is retained in the labyrinth B1.
2b. If wiring from the rear, remove the fan’s terminal cover and rear entry knockout, feed the
cable through the knockout.
3. Refit and secure the terminal cover.
4. Refit the inner grille to the fan mounting box, using fixi ng screws G1 (8). Do not overtighten
screws.
5. Insert two colour matching screw covers in the fixing holes in the inner grille. When
removing the covers, place a 3mm blade electrician’s screwdriver into the slot and lever off the
cover.
6. Switch off the mains electrical supply and remove fuses.
7. Connect the cable from isolation switch to the electrical supply wiring.
8. Replace the fuses, and switch on the mains electrical supply.
For fixed wiring circuits the protective fuse for the appliance must not exceed 5A.
If installing a PX9/12:
1. The fan connector parts are packed separately.
2. Remove the two cable clamp screws (fig. C1 and C2).
3. If required feed the cable through the grommet in order to fit the cable entry of the connector
plate.
• If installing with an on/off switch:
1. Wire the fan connector as shown in fig. B3
2. Set the Fan Selector Switch to position 1 for Intake, Position 2 for Extract or Position 3 for
‘open shutter only’ (Fig D.)
• If installing with a controller:
1. Refer to the installation instructions for the controller.
2. If wiring to an existing controller, contact Xpelair Technical Services or in export markets,
the Xpelair distributor
3. Set the Fan selector Switch to position 3 if using a controller providing variable sp eed and/or
direction. Otherwise, set the Fan Selector Switch to Position 1 for Intake, Position 2 for Extract
or Position 3 for ‘open shutter only’ (fig. D).
Fitting the cable clamp (PX9/12):
For cable up to 8mm diameter, clamp the cable as shown in Fig. C (1).
For cable equal to or greater than 8mm and up to 11.5mm diameter, clamp the cable as shown in
Fig. C (2).
For cable greater than 11.5mm diameter use the conduit entry provided (Europe only).
Fitting the Connector to the fan (PX9/12):
1. Ensure the cable is firmly retained by the clamp.
2. Assembly the Fan Connector by snapping the Cover over the Connector (Fig. E).
3. Plug the Fan Connector into the Fan Assembly.
4. Refit the Backdraught Shutter.
5. Refit the Inner Grille.