15
en
Description of appliance Operating modes
If the air intake is inadequate, there is a risk of
poisoning from combustion gases which are
drawn back into the room.
An air-intake/exhaust-air wall box by itself is no
guarantee that the limiting value will not be ex-
ceeded.
Note: When assessing the overall requirement, the
combined ventilation system for the entire house-
hold must be taken into consideration. This rule
does not apply to the use of cooking appliances,
such as hobs and ovens.
Unrestricted operation is possible if the extractor
hood is used in recirculating mode – with activated
carbon lter.
Circulating-air mode:
qAn activated carbon lter must be tted for this
operating mode (see Filters and maintenance).
The complete installation set and replacement
lters can be obtained from specialist outlets.
The corresponding accessory numbers can be
found at the end of these operating instructions.
qThe extractor-hood fan extracts the kitchen va-
pours which are puried in the grease lter and
activated carbon lter and then conveyed back
into the kitchen.
qThe grease lter absorbs the grease particles in
the kitchen vapours.
qThe activated carbon lter binds the odorous
substances.
If no activated carbon lter is installed, it is
not possible to bind the odorous substances in the
cooking vapours.
Lighting
Light / fan
switches
Filter grille
Chimney
Operating modes
Exhaust-air mode:
qThe extractor-hood fan extracts the kitchen
vapours and conveys them through the grease
lter into the atmosphere.
qThe grease lter absorbs the solid particles in
the kitchen vapours.
qThe kitchen is kept almost free of grease and
odours.
If the extractor hood is operated in exhaust-
air mode at the same time as a ue-type heater
(e.g. gas, oil or solid-fuel heater, instantaneous
water heater, boiler), ensure that there is an
adequate air supply which the heater requires for
combustion.
Safe operation is possible provided that the partial
vacuum in the room in which the heater is installed
does not exceed 4 Pa (0.04 mbar).
This can be achieved if the combustion air is able to
ow through non-lockable openings, e.g. in doors,
windows and in conjunction with an air supply/
air-intake wall box or by other technical procedures
such as reciprocal interlocking.
Operating Instructions