INSTRUCTIONS FOR THE INSTALLER
9
2.
Figure No.7 -
Exterior diagram of the casing
In order to enable suitable air
circulation and correct operation, the
casing must have a fresh-air inlet with a
minimum section of 1,000cm
2
beneath the
level of the actual appliance and a hot-air
outlet measuring at least 1,000cm
2
above it
(just before the insulating deflector inside
the casing). These inlet and outlet sections
must ensure air renewal in such a way as to
avoid damage to parts inside the hood due
to excess temperature.
This specification must be observed
regardless of the type of installation
chosen (with or without forced ventilation,
combustion air from indoors or outdoors,
directed hot-air outlets with or without
pipes, etc.). A further hot-air ventilation
grille is also recommended between the
insulating deflector on the hood and the
ceiling.
Warning: on appliances on which it is
possible to pipe air to the firebox, the hood
requires a further air inlet at the bottom, in
addition to the 1,000cm
2
inlet, if the air
supply comes from the room in which the
appliance is fitted.
On
non-central-heating
appliances
(without back boiler), Lacunza does not
recommend enveloping the outside of
appliances with insulation.
The installer must fit the necessary
inspection accesses (trap doors, hatches,
etc.) so that everything inside the hood
that may need maintenance work or
replacement can be accessed at any time,
e.g. counterweight system, hydraulic
components,
heating
circuit
safety
components.
2.3.6.
Connection to the flue
The appliance must be connected to the
chimney flue using special piping designed
to resist the products of combustion (e.g.
stainless steel, enamelled steel, etc.).
To connect the flue to the socket flange,
insert the piping inside the flange and seal
the joint with fire sealant or fire cement to
make it completely airtight.
The installer must ensure that the pipe
connected to the appliance is well secured
and there is no chance of it coming free
from its housing (e.g. as a result of
dilatation due to temperature, etc.).
2.3.7.
Piping air to other rooms
It is possible to pipe some of the heat
generated to other rooms in the house
using the appliance. This does not mean
that the appliance works more efficiently,
but it does mean that the heat it creates is
distributed better. For this purpose, in the
top surface of the appliance there are 4
potential hot-air outlets with diameters of
120mm on the top shell of the appliance.
Pipes can be fitted from these outlets to
other rooms. If you intend to do this, bear
the following points in mind.
•
The air ducts must always be heat
insulated and smooth inside (not
corrugated).
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