Miele Ventilation Hood Service Manual download pdf (Page 46)

Exhaust duct

46

WARNING: Danger of toxic fumes.

Gas cooking appliances release car‐

bon monoxide that can be harmful or

fatal if inhaled.

To reduce the risk of fire and to prop‐

erly e

xhaust air, the exhaust gases

extracted by the hood should be

vented outside of the building only.

Do not vent exhaust air into spaces

within walls or ceilings or in attics,

cr

awl spaces or garages.

To reduce the risk of fire, only use

metal ductwork.

Please read and follow the "IMPOR‐

T

ANT SAFETY INSTRUCTIONS" to

reduce the risk of personal injury.

Follow all local building codes when

installing the hood.

 Only use smooth pipes or flexible

duct hoses made from non-flamma‐

ble materials for exhaust ductwork.

 T

o achieve the greatest possible air

extraction with the lowest noise lev‐

els, please note the following:

– The diameter of the exhaust duct

should not be less than 6" (150 mm).

– If flat exhaust ducts are used, the

cross section should not be smaller

than that of the exhaust connector.

– The exhaust duct should be as short

and str

aight as possible.

– If elbows are needed, make sure they

have

a large radius.

– The exhaust duct itself must not be

kin

ked or compressed.

– Make sure that all connections are

secu

re and airtight.

Remember that any constriction of

the airflow will reduce extraction per‐

formance and increase operating

noise.

 If the e

xhaust duct is to be routed

through an outside wall, we recom‐

mend installing a telescopic wall vent

or a rooftop vent (available as an op‐

tional accessory).

 If the e

xhaust air is to be conducted

into a vent flue, the intake piece must

be aligned with the flow direction of

the flue.

 When insta

lling the exhaust duct hor‐

izontally, you must slope it away from

the source by at least 1 cm per meter

(3/8" per 3 1/4'). This ensures that

condensate cannot drain back into

the ventilation hood.

 If the e

xhaust duct is to be routed

through rooms, ceiling space etc., the

temperatures in these different areas

may differ greatly, which means that

the problem of condensation will

need to be addressed. The exhaust

duct will need to be insulated.

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