yuna DUANA, Instruction Manual

Page: 9 / 27

9
INSTALLATION
2
The diameter of the exhaust hose
must meet the diameter of the con-
necting ring.
If your appliance is equipped with
a carbon filter, remove the carbon
filter before you operate the appli-
ance in the extraction mode. The
carbon filter should be used in the
recirculating mode only.
The exhaust duct should be as
short and straight as possible.
The diameter of the exhaust hose
should be at least 150 mm (look at
chapter TECHNICAL DATA). Other-
wise you have to expect increased
noise and decreased performance
of your appliance.
The proper maximum bending ang-
le outwards is 120°.
Use smooth tubes or flexible, non-
inflammable exhaust hoses only.
When the exhaust duct is connec-
ted horizontally, a minimum falling
gradient of 1 cm/m or an inclination of 20° is required. Otherwise con-
densate will get into the motor of
the hood.
When an exhaust duct is used, the
ending of the exhaust hose must be
adjusted into the direction of flow.
If the exhaust duct passes through
cool areas (e.g. an attic), a tempe-
rature gradient may occur in the dif-
ferent parts of the exhaust duct so
condensate will be generated. Pro-
per insulation of the corresponding
parts of the exhaust duct
will then be needed. Equip such
an exhaust duct with a condensate
trap if need be.
Depending on the model the hood
is equipped with one ( top ) or two (
top, back ) outlets.
The idle outlet is covered by a plas-
tic cap. You can remove this cap by
turning it anticlockwise. Use the
cap to cover the idle outlet.
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