Kernau KCH 1161 B, Instruction Manual, Page: 28 / 55

EN
28
Hints for exhaust duct installation
The following rules must be strictly followed to obtain optimal air extraction:
• Keep exhaust duct short and straight.
• Do not reduce the size or restrict exhaust duct.
• When using flexible duct always install the duct pulled taut to minimize pressure
loss.
• Failure to observe these basic instructions will reduce the performance and increase
noise levels of the range hood.
• Any installation work must be carried out by a qualified electrician or competent
person.
• Do not connect the ducting system of the hood to any existing ventilation system
which is being used for any other appliance ,such as warmer tube, gas tube , hot
wind tube.
• The angle of the bend of the ventilation pipe should not be less than 120º; you must
direct the pipe horizontally, or, alternatively, the pipe should go up from the initial
point and should be led to an outer wall.
• After the installation ,make sure that the cooker hood is level to avoid grease
collection at on end.
Ensure the exhaust ducting selected for installation complies with relevant standards
and is fire retardant.
WARNING:
For safety reason, please use only the same size of fixing or mounting screw which are
recommended in this instruction manual.
Failure to install the screws or fixing device in accordance with these instructions may
result in electrical hazards.