Ducting - Miele SmartLine Operating And Installation Instructions
Downdraft extractor
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- Operating and installation instructions (84 pages) ,
- Operating and installation instructions (72 pages)
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Installation
Ducting
If the downdraft extractor is used
at the same time as a heating
appliance that relies on oxygen from
the same room, there is a risk of
toxic fumes.
It is essential that the "Warning and
Safety" instructions are observed.
The downdraft extractor should be
installed according to local and
national building regulations. Seek
approval from the building inspector
where necessary.
The downdraft extractor has an exhaust
connection of 222 x 89 mm.
Only use smooth pipes or flexible
exhaust hoses made from non-
flammable materials for exhaust
ducting.
To achieve the most efficient air
throughput with the lowest noise
levels, please note the following:
- The cross-section of the ducting
must not be smaller than the cross-
section of the exhaust duct
connection (see "Appliance
dimensions").
- The ducting should be as short and
straight as possible.
- Only use wide radius bends.
- The exhaust ducting must not be
kinked or compressed.
- Ensure that all connections are
strong and airtight.
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Remember that any constriction of
the air flow will reduce air throughput
and increase operating noise.
If the exhaust air is to be ducted into
a flue, the ducting must be directed in
the flow direction of the flue.
If ducting is to be laid horizontally it
must be laid with a downwards
sloping gradient. This is to ensure
that condensate cannot drain back
into the fan.
If the ducting is to run through rooms,
ceiling space, etc. there may be great
variations in temperature between the
different areas. The problem of
condensation will need to be
addressed. The ducting will need to
be suitably insulated.
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