Bosch DHU935GLV Instrucciones De Uso E Instalación página 10

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Prior to installation
Exhaust-air mode
The exhaust air is discharged upwards
through a ventilation shaft or directly through
the outside wall into the open.
For operating in exhaust-air mode, a one-
way flap should be mounted inside the wall
ventilation box.
If no one-way flap was enclosed with the
hood, it can be obtained from a specialist
retailer.
Installing the one-way flap:
Snap the one-way flap into the air pipe.
The two lightly sprung flaps must be able to
move upwards.
If the exhaust air is going to be
discharged into the open, a telescopic wall
box should be fitted into the outside wall.
❑ For optimum extractor hood efficiency:
❑ Short, smooth air exhaust pipe.
❑ As few bends in the pipe as possible.
❑ Diameter of pipe to be as large as
possible and no tight bends in pipe.
If long, rough exhaust-air pipes, many
pipe bends or smaller pipe diameters
are used, the air extraction rate will no
10
longer be at an optimum level and
there will be an increase in noise.
❑ Round pipes:
Short discharge pipe:
Inner diameter at least 100 mm,
extended discharge pipe:
Inner diameter at least 125 mm.
❑ Flat ducts must have an inner
crosssection equivalent to round pipes
with an inner diameter of 100/125 mm.
There should be no sharp bends.
100 mm dia approx. 113 cm2
125 mm dia approx. 178 cm2
❑ If pipe diameters differ:
Insert sealing strip.
❑ Ensure an adequate air supply for
exhaust-air mode.
Exhaust air upwards:
Pipe diameter: 125/100 mm
❑ Insert the exhaust-air connection and
turn as far as possible.
To the outside
Coupling ring Ø125
or Ø 100 (Bayonet
and screw fitting)
Pipe

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