Flue Gas Fitting - Palazzetti ELSA NEW Installations- Und Wartungsanleitung

Extraction of combustion air in the room
Create the air intake on the wall (Fig. 12 - PA =Air
Intake), and leave the appliance to withdraw the
room air, making sure to connect the section of
corrugated pipe on the air inlet pipe, if supplied,
fixing it with the strap and folding it slightly
downwards to prevent any resonance effects.
If the rear wall of the appliance is an external
wall, make a hole for the intake of combus-
tion air at a height of about 20-30 cm f rom
the ground, observing the dimensions on the
technical data sheet in section "4.3 Technical
features" on page 39.
44
A non-closable permanent aeration grid must
be placed externally; in areas that are particularly
windy and exposed to weathering, provide rain
and wind protection.
Ensure that the air intake is positioned so that it
won't be accidentally obstructed.
If it is impossible to create an external air intake
in the wall behind the appliance (non-perimeter
wall), a hole must be made in an external wall of
the room where the appliance is positioned.
If it is not possible to create the fresh air intake in
the room, an external hole can be created in an
adjacent room provided it is permanently inter-
connected by means of a transfer grille.
It is forbidden to take combustion air from ga-
rages, warehouses of combustible material or
places with activities at risk of fire.
If there are other heating or extraction
Fig. 11
appliances in the installation room,
combustion malfunctions may occur
due to a lack of combustion air.
The combustion air intakes must
therefore be sized correctly, in order to
ensure the necessary supply of air for
the correct operation of all devices.

6.5 Flue gas fitting

The appliance works with the combustion cham-
ber at negative pressure. It is therefore essential
to make sure that the flue gas evacuation is
airtight (this is the responsibility of the installer).
The appliance must be connected to its own flue
gas duct, not shared, and which is suitable for
ensuring adequate dispersion of the combustion
products into the atmosphere, in accordance with
the regulations in force in the country of installation.
The components making up the flue
gas ducting system must be declared
suitable for the specific operating con-
PA
ditions and provided with CE marking.
It is mandatory to create a first vertical
section measuring at least 1.5 meters
to guarantee correct expulsion of the
flue gases.
Fig. 12
It is advisable to make a maximum of 3 direction
changes, in addition to that resulting from the
rear connection of the appliance to the chimney,
using 45 - 90 ° bends or Tee fittings (Fig. 13).
Always use a Tee fitting with inspection cap at
each horizontal and vertical change of the flue
gas route (Fig. 13).
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