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INSERTO 70 L
The exhaust pipe must be air-tight fastened to the stack and can have a maximum inclination of 45° ; th is to avoid
excessive deposits of condensate produced in the initial start-up phases and/or the excessive gripping of soot and
moreover it avoids the slowing down of the smokes at output.
The failed tightness of the connection can cause the malfunction of the appliance.
The internal diameter of the connection pipe must be equal to the external diameter of the smokes stub pipe of the
appliance. This is assured by pipes complying with DIN 1298.
The depression to the stack should be 10 - 12 Pa (1 – 1.2 mm of column of water).
The measurement has always to be carried out with hot appliance (rated thermal performance).
When the depression exceeds 17 Pa (1.7 mm of column of water), it is necessary to reduce the same by installing an
additional draught regulator.
IMPORTANT: When metallic pipes are used, these pipes must be insulated with suitable materials (coatings
in insulating fiber resistant) in order to avoid tears of walls or of
the counter-hood.
Before positioning the insert in the pre-existing fireplace, it is necessary to
close the upper internal part of the stack using (properly pre-drilled) sheet
metal or any other kind of fire-resistant material that can support very high
temperatures without suffering any damage. (see Picture 13)
It is necessary that the space included between the upper part, the sides
of the appliance and the deflector of fire-proofing material of the hood
(obstructing the base of the flue), is constantly ventilated.
For this reason, it is necessary to foresee an intake of air from the
bottom (intake of fresh air) and a high output (output of hot air).
Each of these openings must be free and it should not be possible to
obstruct it; moreover, they must have a minimum surface of at least 3 dm
(example: 30 x 10 cm grating).
In this way, the following targets are achieved:
•
a greater safety
•
an increase of the heat created by the air circulation around the
appliance.
The heat vent grating (Picture 14 pos. 6) has to be installed on the
upper part of the hood at about 20 cm from the roof. This must always
be installed since its function is that of letting the heat collected within
the hood (overpressure) flow out into the room.
(1) Insulating material
(3) Insulating coating with external
aluminum sheet
(4) Door for cleaning
(5) External air intake
Picture 14
8.
EXTERNAL AIR INTAKE
For a good operation of the appliance, it is essential that a sufficient quantity of air for the combustion and the re-
oxygenation of the room is introduced the installation room itself. This means that, through proper openings
communicating with outside, the air for combustion must circulate also with closed doors and windows.
•
The air intake must be positioned so that it cannot be obstructed.
•
Be communicating with the installation room of the appliance and be protected by grating.
•
Minimum surface must not be lower than 100 cm
6096700 – EN
(2) Seal
(1)
Closure of the existing duct with sheet
metal, bricks, mineral wo ol panels or fire
resistant materials
(2) Grating
(2) Griglia
(3) Connection
(3) Condotto di
collegamento
2
(4) Condotto
(4) Conduct
(5) Air intake grating
(5) Griglia di entrata aria
(6) Heat drain grating
(7) Fire-retardant counter-hood
(8) Maximum inclination 45°
(9) Shield wooden parts with
insulating material
(10) Min. distance 8cm between
Coating and insert
2
.
Picture 13
21
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