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DUCTING AND EXTRACTION LEVELS
WHISPAIR ducting is designed to ensure optimum performance for your rangehood. Please follow the installation instructions
carefully.
Every WHISPAIR rangehood must be ducted to the outside environment by the use of non-ammable ducting. The rangehood
must not be ducted into a wall cavity or a ceiling space where a build-up of grease can occur and become a potential re risk.
Ensure the external outlet on the KLEENAIR unit is not covered and the air ow is not restricted in any way as this may result in
reduced performance.
The duct must at all times have a cross sectional surface area equivalent to the hood outlet. The rectangular hood outlet has
an approximate area of 24,200mm and the 150mm diameter round outlet has an area of 17,696mm
2
. Do not reduce the
duct size at any time and avoid sharp bends. If the duct run is longer than six (6) metres, it may be necessary to enlarge the
duct size to ensure optimum performance. The manufacturer does not guarantee performance when the duct length is greater
than six (6) metres.
Ensure that all ducting is correctly tted and sealed with pipe clips, duct tape or silicone to ensure that fumes do not escape prior
to reaching the outside environment.
The WHISPAIR extraction calculations are based upon a 50pa change of head of pressure loss and are used to factor the
variance of air ow resistance through the ducting. 50pa is equivalent to approximately four (4) metres (the recommended
length) of ducting, which is above and beyond the industry standard of one straight metre of ducting. The KLEENAIR ULTRA
offers a powerful 1680 cubic metres per hour (466 litres per second) and the KLEENAIR POWER offers 1020 cubic metres per
hour (283 litres per second) of air movement.
4
SERVICING
The installation and tting of the rangehood should be done in such a way that will allow the unit to be removed if service is
required. Additional costs incurred in the removal, such as damage to walls, are not covered under warranty.
It is expected that the stainless steel is cleaned with a quality non-abrasive stainless steel cleaner. The bafe lters and grease
trap are removable and dishwasher safe. It is recommended that these items be cleaned regularly, at a minimum of 4 weeks.
The KLEENAIR unit should be checked regularly to ensure that nothing is obstructing the air ow from the housing.
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