Elba P90 Instructions For The Use page 20

CHOOSING SUITABLE
SURROUNDINGS
The room where the gas appliance is to
be installed must have a natural flow of
air so that the gas can burn (in compli-
ance with the current laws in force).
The flow of air must come directly from
one or more openings made in the out-
side walls with a free area of at least 100
2
cm .
The openings should be near the floor
and preferably on the side opposite the
exhaust for combustion products and
must be so made that they cannot be
blocked from either the outside or the
outside.
When these openings cannot be made,
the necessary air can come from an adja-
cent room which is ventilated as required,
as long as it is not a bedroom or a danger
area (in compliance with the current laws
in force).
In this case, the kitchen door must allow
the passage of the air.
Extractor hood
for products of
combustion
Air vent
Fig. 4.6
20
Installation technicians must com-
ply to current laws in force concern-
ing ventilation and the evacuation of
exhaust gases.
Intensive and prolonged use may
require extra ventilation, e.g. opening
a window, or more efficient ventila-
tion increasing the mechanical suc-
tion power if this is fitted.
DISCHARGING PRODUCTS
OF COMBUSTION
Extractor hoods connected directly to
the outside must be provided, to allow
the products of combustion of the gas
appliance to be discharged (fig. 4.6).
If this is not possible, an electric fan
may be used, attached to the external
wall or the window; the fan should have
a capacity to circulate air at an hourly
rate of 3-5 times the total volume of the
kitchen (fig. 4.7).
The fan can only be installed if the
room has suitable vents to allow air to
enter, as described under the heading
"Choosing suitable surroundings".
Electric fan to
extract products
of combustion
Air vent
Fig. 4.7