Hoods can only be used safely with appliances connected to a chimney if the room and/or flat (air/environment combination) is ventilated from outside using a suitable ventilation hole approxi- mately
If you have any doubts, contact the relevant controlling authority or building inspector’s office.
Since the rule for rooms with fuel burning appliances is “outlet hole of the same size as the ventilation hole”, a hole of
If the hood is used in its recirculation mode, it will operate simply and safely in the above conditions without the need for any of the aforementioned measures.
When the hood is used as an extractor,the following rules must be followed to obtain optimal operation:
—short and straight outlet hose
—keep bends in outlet hose to a minimum
—never install the hoses with an acute angle, they must always follow a gentle curve only
—keep the hose as large as possible (100 or 120 mm Ø min.).
Failure to observe these basic rules will drastically reduce the performance and increase the noise levels of the extractor hood.
Where flexible ducting is fitted the length should be no more than:
—3 metres with one 90° bend
—2 metres with two 90° bends.
Bends of more than 90° will reduce the efficiency of the hood and reduce the air flow.
Electrical connections
Please ensure that the voltage and current indicated on the rating plate agree with the voltage of your electricity supply.
If your appliance has been equipped with a mains lead with a
The plug moulded on to the lead incorporates a fuse. For replacement, use a 5 amp BS1362 fuse. Only ASTA approved or
Safety warnings for electrician
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