Installation - Vent-Axia Centra Lo-Carbon SELV Series Installation And Wiring Instructions

ACCESSORIES (not supplied)
WALL FITTING KIT
A range of white (stock ref. 254102) or brown (stock ref. 254100) 100mm wall kits are
available for installing into most walls using telescopic liners supplied.
WINDOW FITTING KIT
A window fitting kit is available (stock ref. 442947).
6" TO 4" ADAPTER PLATE
An adapter to cover up an existing 150mm (6") installation (stock ref. 443334)
A. INSTALLATION
IMPORTANT: The fan should only be used in conjunction with fixed wiring.
SITING THE CONTROLLER
1. The controller must not be installed in a shower cubicle or enclosure. It must be
sited away from direct sources of water spray and out of reach (1.5m) of a person
using a fixed bath or shower.
2. Site away from direct sources of heat. Ambient temperature range 0 to 40ºC. Do
not site in an area containing excessive levels of grease.
3. Decide where to site the controller and fan (see section siting the fan), and work
out the required cable runs.
SITING THE FAN
1. The electrical supply to this fan is 12V DC SELV from the mains controller. This
means that the fan may be installed within reach of a person using a fixed bath or
shower, i.e. in a nearby wall. However, the fan must not be placed where it could
be submerged in water or regularly exposed to direct water spray, e.g. from a
shower head whether permanently fixed or movable.
2. Site away from direct sources of heat. Ambient temperature range 0 to 40ºC. Do
not site in an area containing excessive levels of grease.
3. If the fan is installed in a room containing a fuel burning appliance the installer
must ensure that air replacement is adequate for both the fan and the fuel burning
appliance. If the fan is used to supply air into the room the installer must ensure
that the fan intake is located at least 600mm Away from any flue outlet.
4. Ducted Applications. These fans can be used with short lengths of ducting, but
check details first with your Vent-Axia sales centre. Where an excessive amount
of moisture is present in the air, a condensation trap will need to be installed in the
exhaust duct. Horizontal ducts should slope away from the fan unit. Ducts passing
through an unheated roof void should be insulated.
5. A short circuit of the airflow should always be avoided by siting the fan as far away
as possible from and opposite to the main source of air replacement. FIG.1
4