HiB 33800 Manual - Page 3

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Also for HiB 33800: Manual (8 pages), Quick Start Manual (4 pages)

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Mounting - Fascia

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.

Mounting - Fan unit

1. Install the Cyclone Inline fan within the loft or ceiling space (ensuring correct direction of air ﬂow

using arrows on the fan). DO NOT COVER motor or LED driver with loft insulation. The fan is

suitable for only horizontal mounting 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).

g. A horizontal on a wall

2. Using a screw driver, remove

screws on clips.

min 1m

g. B horizontal on a oor

3. Remove bracing clips & remove central unit.

Do not mount vertically

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