5
Product information
6005044_0 – 04.12.2019
EN
2.
Product information
2.1
Functional principle
Centrifugal force
y
Cooking vapours are drawn through a gap and into the
hood where they are accelerated and routed through
bends.
y
The resultant centrifugal force ejects particles of dirt
(e.g. particles or grease and oil) out of the air.
y
The dirt particles are separated out and collected on the
upper and lower section as well as a catchment screen
(“Capillar Trap”).
BackFlow technology (optional)
y
Condensate or droplet formation (e. g. if steam touches
cold surfaces) is prevented by a vent installed from the
back to the front.
y
Part of the vented air quantity is fed to the back of the
hood, blown over the hood underside and directed into
the suction gap.
2.2
Operating modes
The device is suitable for the following operating modes:
y
Recirculated air mode
y
Extracted air mode
y
Hybrid mode
2.2.1
Recirculated air mode
The filter filling in the recirculated air filter neutralises any
smelly odours present. The odour-free, cleaned room air is
fed back into the room. The humidity in the room can be
reduced with the fresh air feed.
In recirculated air mode, it is necessary to use the run-on
function so that the device can remove the remaining
odours. Using the run-on function increases the life of the
filter filling. The filter filling must be replaced at regular
intervals.
2.2.2
Extracted air mode
The cleaned room air can be routed to the outside via the
building structure (e.g. ducting, chimney).
With extracted air mode an adequate fresh air supply is
required. The device can only extract the amount of air to the
outside that is present in the room or which is drawn into the
room.
2.2.3
Hybrid mode
In hybrid mode, it is possible to select flexibly between
recirculated air mode and extracted air mode.
In extracted air mode, the cleaned room air is routed to the
outside through the wall box which opens automatically.
Extracted air mode is recommended in summer or with
particularly intensive frying.
In recirculated air mode the wall box remains closed. The
filter filling in the hybrid filter neutralises any smelly odours
present. The odour-free, cleaned room air is fed back into the
room.
The recirculated air mode is recommended in winter if no
warm room air is to be surrendered to the outside.
Summary of Contents for BKH 120 FO
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