Please read carefully
Read through these instructions completely before commencing installation. Retain for future use.
1. This product shall be installed in accordance to AS/NZS 3000 Wiring Rules.
2. Regulations concerning the discharge of air must be fulfilled. Local building codes may require venting to the outside.
3. This product must be installed at least 2.2m above floor level.
4. Do not install within 120cm of a stove or inside a shower recess.
5. Cross Ventilation:
Ventilation products must have an adequate source of external air to ensure rated performance.
Steam and air will only be exhausted through the fan if there is sufficient flow of air through the room. Ensure adequate inlets exist through windows,
vents or under the door. Airflow path from the inlet to the fan should ideally pass over the source of steam or air to be removed from the room.
Restrictions on replacement air entering the room to be ventilated, or pressure-differentials between the room and outside air will significantly reduce
the exhaust fan’s performance.
6. Compliance with Section 6 Damp Situation of AS/NZS 3000 Wiring Rules:
No part of the unit may be located directly above any part of the bath or shower recess or enclosure.
The unit must be installed within zones 2 and 3 only. For further information, refer to AS/NZS 3000.
7. Unit Orientation:
The unit must be installed to ensure the housing outlet and ducting is oriented in parallel to any roofing structures or supports. Refer to image below
for correct installation orientation. Orientation which forces the unit to be ducted into a 90° bend immediately after the fan outlet will cause a significant
performance reduction.
8. Duct Size and Length:
The unit must be installed with Ø150mm duct using the adaptor supplied to ensure optimum extraction and performance. The maximum recommended
duct length is 3m. The graph below shows the unit’s performance with 3m of duct. Longer ducts will reduce the unit’s performance.
9. Duct Routing:
As the back pressure increases the unit’s performance is reduced. Airflow will be reduced with bends in duct or squashing of duct. Every 90° bend/
elbow results in approx 20% reduction in the unit’s performance.
Please refer to the graph below, an almost linear relationship between back pressure and fan performance proves just how critical correct installation
of the exhaust fan is in relation to performance.
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Back Pressure (PA)
Air Flow (m
3
/H)
EFD01 series
(Ducted- Ø150mm x3m)
