Vent-Axia Lo-Carbon VA100 SELV LHTP, Installation And Wiring Instructions, Page: 5 / 12

WALL MOUNTING
(WALL KIT SUPPLIED SEPARATELY – SEE ACCESSORIES ON PREVIOUS PAGE)
1. For wall mounting cut a 117mm diameter hole through the wall and insert
the wall sleeve. Slope the sleeve slightly downwards away from the fan. Cut
to length and cement both ends into position flush with the wall faces.
2. Loosen the screw in the bottom of the grille and remove the front grille. Mark
the screw centres through the holes in the fan back plate. Drill, plug and
screw into position. Fix exterior grille into position with the louvres positioned
downwards. (Note:- The grille must comply with the standard requirements
of your country to prevent access to the fans impeller)
3. Wire the fan as described in Section B-Wiring. Adjust any settings as
required (see Section C-Setup).
4. Replace the grille and tighten the retaining screw.
5. After installation, ensure impeller rotates freely and the shutters can open.
WINDOW MOUNTING
(WINDOW KIT SUPPLIED SEPARATELY – SEE ACCESSORIES ABOVE)
 The following instructions are for 105-110mm holes only – using the
254101A window mounting kit. For 110-140mm holes please use
443234 window kit and refer to the supplied instructions.
1. Cut a 105mm diameter hole in the glass.
2. Fit spacers as required behind the fan back plate, engaging the locating pips
in the corner holes.
3. Place the fan spigot through the hole in the glass from the inside, with a
gasket on each side of the glass.
4. From the outside, place on the remaining spacer, with the locating pips
facing outwards. For double-glazing and materials up to 40mm thick, one or
more spacers may be discarded.
5. Draw the assembly together with the threaded fixing ring. Do not over-
tighten.
6. Fix the exterior grille in position, using the screws provided, with the louvres
pointing downwards.
AFTER INSTALLATION ENSURE IMPELLER ROTATES FREELY
B. WIRING.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE
ISOLATED FROM THE POWER SUPPLY DURING THE INSTALLATION / OR
MAINTENANCE.
IMPORTANT: The Controller MUST be surface mounted to allow air to freely
circulate around the unit. When installed in a loft void it MUST NOT be enclosed
or covered with insulation.
There are two methods of cable entry to the fan. If the side cable entry option is
used, ensure the supplied grommet is used and maintains a good seal to prevent
water ingress.
The fan must be powered at all times to allow the shutter to work correctly. If there
is a requirement to switch the fan via an external switch, this should be connected
to the LS connection and not by switching L/N supply.