Monoblocco Ghisa-IRONKER-750
6099751 Rev.08 – EN
23
b) Fasten the pipes by means of clamps to the related collars and openings, after having removed the semi-blanks
caps.
c) Each pipe must not exceed 2 m of length for natural ventilation and 4 m for forced ventilation, and has to be
insulated with insulating materials to avoid noise and dispersion of heat.
d) The openings have to be positioned at a height not lower than 2 m from the floor to avoid that hot air at output
meets people.
e) The lengths of the canalization pipes must have the same length to avoid the distribution of differing quantities of
air from each output. (see Picture 12 - Picture 13)
7. CONNECTION TO THE FLUE / AIR FOR COMBUSTION (external air intake)
The connection (smoke channel or fitting) to the flue must be carried out using stiff pipes in aluminized steel with a
minimum thickness of 2 mm or in 316 stainless steel with a minimum thickness of 1 mm.
It is FORBIDDEN to use metallic pipes or pipes in asbestos cement since they jeopardize the safety of the
fitting itself, considering that they are subject to tears or breaks resulting in leaks of smoke.
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 deposit 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 device.
The internal diameter of the connection pipe must be equal to the external diameter of the smokes stub pipe of the
device. This is assured by the pipes complying with DIN 1298.
The depression in the stack should be - 13 Pa (1.3 mm of column of
water).
The measurement has always to be carried out with hot device (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 using metallic pipes, they must be insulated with proper
materials (coatings in insulating fibers resistant up to 600° C) in order to
avoid deterioration of walls or of the counter-hood.
It is necessary to ventilate continuously the space included between the
upper part, the sides of the device and the deflector of the fire-proofing
material of the hood.
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).
The spaces foreseen for the circulation of air indicated in Picture 14 represent
the minimum requirements:
Top:
Minimum opening 800 cm
2
Base:
Minimum opening 600 cm
2
In this way, the following targets are achieved:
•
a greater safety
•
an increase of the heat created by air circulation around the device.
Caution it is suggested to produce the counter-hood in fire-resistant plaster board with metallic self-bearing frame, in
order not to let it weight on the aesthetic coating (marble).
Picture 12
Picture 13
Picture 14
1000 cm
2
750 cm
2
10 cm min post. e laterale Mod 600
5
Rear and side Min. 6 cm
800
600
