Zanussi ZHC 925 - Manual (Page 15)

15
Note: The two venting grilles must not be fitted
into the lower chimney (I) until the chimney has
been installed.
Extraction
The charcoal filter is not required in this mode
and should be removed.
Ducting
The ducting used must be 150mm (6ins), or
125mm (5ins) in diameter.
If possible duct through the wall immediately
above the canopy.
For the best performance use the shortest
possible duct run and the minimum number of
bends.
Where flexible ducting is fitted it should not be
turned through very tight bends as this may
impair the performance of the hood.
It is recommended a maximum length of 3
metres, to be installed, to be reduced 1 metre for
each 90
o bend installed in the ducting run.
If the distance is greater than 3 metres the
efficency of the hood could be impaired.
The diameter of the spigot on top of the hood is
150mm (6ins). When 125mm ducting is to be
used it will be necessary to install the ducting
adapter (A) 150mm (6ins) to 120mm (5ins) and
the ducting collar (B) 120mm to 125mm as
illustrated in Fig. 11.
If the room where the cooker hood is to
be used contains a fuel burning appliance
such as a central heating boiler, then its
flue must be of the room sealed or
balanced flue type.
If other types of flue or appliances are
fitted ensure that there is an adequate
supply of air to the room.
The cooker ducting (extraction mode)
must never be connected to central
heating flues, radiators or water heaters
etc.
Fig. 11
B
A
A