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The air inflow may also be obtained from an adjoining
room, provided the latter is not a bedroom or a room
where there is a risk of fire, such as warehouses,
garages, fuel stores, etc. and is ventilated in
compliance with the norms. The air flow from the
adjoining room to the one to be ventilated may pass
freely through permanent apertures with a cross
section at least equal to that indicated above. These
apertures may also be obtained by increasing the gap
between the door and the floor. If an electric fan is
used for extracting the combustion products, the
ventilation aperture must be increased in relation to its
maximum performance. The electric fan should have a
sufficient capacity to guarantee an hourly exchange of
air equal to 3 ÷ 5 times the volume of the kitchen.
Prolonged, intensive use of the appliance may require
extra ventilation, e.g. an open window or a more
efficient ventilation system by increasing the extraction
power of the electric fan if installed. Liquid petroleum
gas descends towards the floor as it is heavier than
air. Apertures in the outside walls in rooms containing
LPG cylinders should therefore be at floor level, in
order to allow any gas from leaks to be expelled. Do
not store LPG cylinders (even when empty) in
basements or rooms below ground level; it is
advisable to keep only the cylinder in use in the room
at any one time and connected far from heat sources
which could raise its temperature to above 50 °C.
Gas supply
• Check that the appliance is set for the type of gas
available and then connect it to the mains gas
piping or the gas cylinder in compliance with the
applicable norms in force.
• This appliance is designed and set to work with the
gas indicated on the label situated on the actual
hob. If the gas supply is different from the type for
which the appliance has been set, replace the
corresponding nozzles (provided), following the
instructions given in the paragraph "Adaptation to
different types of gas".
• For trouble-free operation, suitable use of energy
and a longer life cycle for the appliance, make sure
that the supply pressure complies with the values
indicated in table 1 "Burner and nozzle
specifications", otherwise install a special pressure
regulator on the supply pipe in compliance with
current standards and regulations.
• Connect in such a way that the appliance is
subjected to no strain whatsoever.
Either a rigid metal pipe with fittings (D) in compliance
with norms must be used for connecting to the nipple
union (threaded - cylindrical ½"G fitting F) situated at
the rear of the appliance, or a flexible steel pipe with a
continuous wall and fittings (C) in compliance with
norms, which must not exceed 2000 mm in length.
Check that the connecting pipe cannot come into
contact with moving parts which could damage or
crush it. For installation with a flexible rubber pipe,
apply the special hose support for liquid gas (A) or
natural gas (B). The gasket (G) (provided) must be
utilised in every type of connection. The two ends of
the pipe must be fastened with the purpose designed
pipe collars (E), in compliance with the norms. The
flexible pipe should comply with the norms, and be
specific for the type of gas used. In addition:
• it should be as short as possible, with a maximum
length of 1.5 metres;
• it should not be bent or kinked;
• it should not be in contact with the rear panel of the
appliance or in any case with parts which may
reach a temperature of 50°;
• it should not pass through holes or slits used for
discharging the oven flue gases;
• it should not come into contact with pointed parts or
sharp corners;
• it should be easy to inspect along its entire length in
order to be able to check its condition;
• it should be replaced before the date printed on the
actual pipe.
Important: A pressure regulator, in compliance with
the applicable norm in force, must be inserted when
connecting to a liquid gas supply (in a cylinder).
Upon completion of installation, check for leaks from
the gas circuit using a soapy solution (never use a
flame). Make sure that the natural gas pipe is
adequate for a sufficient supply to the appliance when
all the burners are lit.
Adapting to different types of gas
To adapt the hob to a different type of gas from the
factory-set one (indicated on the rating plate at the top
of the hood or on the packaging), the burner nozzles
should be replaced as follows:
• Remove the hob grids and slide the burners off their
seats.
• Unscrew the nozzles (fig. 9), using a 7 mm socket
spanner and replace them with nozzles for the new
type of gas (see table 1 "Burner and nozzle
characteristics").
Reassemble the parts following the above
procedure in the reverse order.
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