Combustion Air; Flue Gas Fitting - Palazzetti IDRO INSERTION Manuel D'installation, D'utilisation Et D'entretien

6.4 Combustion air

The appliance, during its operation, requires
combustion air.
The inflow of combustion air can be obtained
through an air intake outside the room itself (PA
= Air Intake).
Extraction of combustion air in the room
Create the air intake on the wall (Fig. 11 - 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.
It is possible to use a rear combustion air pipe
to the machine with a pipe diameter of 60 mm,
max length 4 m. equivalent for external direct
connection.
68
If the rear wall of the appliance is an external wall,
make a hole for the intake of combustion air at a
height of about 20-30 cm from the ground, re-
specting the dimension indications given on the
technical data sheet at the end of the booklet.
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.
PA
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
Fig. 11
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 appliances in the room,
the combustion air inlets must guarantee the
necessary volume of air for the correct operation
of all devices.
If one or more extraction fans (extrac-
tor hoods) are present and operating
in the installation room, combustion
malfunctions may occur due to lack of
combustion air.

6.5 Flue gas fitting

The appliance works with the combustion cham-
ber at negative pressure. It is therefore essential
Max 4 m
004778730 - 24/06/2021
Fig. 12