HiB 33800 Manual - Page 3

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Mounting

1. Ceiling mounted ventilation should be ducted through the roof space, by

ducting to an external soffit under the eaves or grille in the slope of your roof.

NB: Ducting installed between a floor and ceiling can only run between joists, not

across them.

2. Mark the position of the vent fascia with a pencil in a suitable position on the

ceiling, making sure that it is between the joists.

3. Drill a 9mm hole through the ceiling anywhere along the edge of the pencil

line. Now cut out the hole with a pad saw.

4. Hold the vent fascia against the ceiling and mark the position of the fixing

holes. Fix the unit in place using suitable heavy duty plasterboard fixings (not

supplied).

5. Attach flexible ducting with the metal hose clamps. Ensure that the ducting

has a smooth flow towards the motor body to minimise air resistance. Follow a

similar procedure for the outside wall grille. Extra ducting may be used to extend

the distance to the external grille but performance will be reduced.

6. Install the Cyclone Inline fan within the loft or ceiling space (ensuring correct

direction of air flow using arrows on the fan). The fan is suitable both for

horizontal on a wall (fig. A) or a floor (fig. B). When mounting the fan ensure

there is a minimum of 1m straight ducting to the motor body (see fig.B). Attach

the flexible ducting to the fascia with the metal clamps supplied.

g. A horizontal on a wall

min 1m

g. B horizontal on a oor

Do not mount vertically