Focolare 80 Idro Crystal - DSA
6097811 Rev.06 – EN
23
DO NOT ATTEMPT TO EXTINGUISH THE FIRE USING JETS OF WATER.
When the flue stops burning, have it checked by a specialist to identify any cracks or permeable points.
4.2.
PROTECTING THE BEAMS
Considering the irradiation of the hearth, pay particular attention to protecting the beams when designing your
fireplace. Keep in mind both the proximity of
the beams to the external faces of the
hearth, and the irradiation of the glass door,
which is normally very close to the beams. In
any case, remember that the internal or
lower faces of this beam in combustible
material must not be in contact with
temperatures above 65°C.
CAUTION: The manufacturer cannot be
held liable for poor operation of the
system that does not conform to the
regulations given in this manual or for the
use of unsuitable accessory products.
Picture 5 shows some examples.
5.
FLUE
Essential prerequisites for correct operation of the appliance:
•
The internal cross-section should preferably be circular.
•
The flue must be thermically insulated and waterproof and made of materials that are resistant to heat,
combustion products, and any condensates.
•
It must be free of bottlenecks and be vertical with deviations no greater than 45°.
•
If the flue has already been used, it must be cleaned.
•
Respect the technical data provided in the instruction manual;
If the flue has a square or rectangular section, the internal angles must be rounded with a radius of no less than
20mm. For the rectangular section, the maximum ratio between the sides must be 1:5.
A cross-section that is too small will cause a decrease in draught.
We recommend a minimum height of 4 m.
The following materials are prohibited, as they could jeopardise the correct operation of the appliance: asbestos
cement, galvanised steel, internal surfaces that are rough and/or porous. Picture 6 shows some examples.
The minimum cross-section must be 4 dm2 (for example: 20 x 20 cm) for appliances with duct diameter less
than 200 mm, or 6.25 dm2 (for example: 25 x 25 cm) for appliances with diameter greater than 200 mm.
The draught created by your flue must be sufficient but not excessive.
An overly large cross-section may present a volume too large to heat and therefore cause problems in the operation
of the appliance; to prevent this, duct the flue for its entire height. A cross-section too small causes a decrease in
Picture 4
Picture 5
(1) Beam (2) Refractory material insulation (3) Air gap (4) Metallic protection
(1)
(1)
(4)
(2)
(2)
(3) 10 mm
(3) 10 mm
(1)
(3) 10 mm
(2)
(1)
(2)
(3) 10
÷
50 mm
(1)
(3) 10 mm
(2)
(4)
(1)
(3) 10 mm
(2)
Floor protection with non-
combustible material
A
B=Frontal limit of the protected zone (B=H+30 cm=> 60 cm)
A=Lateral limit of the protected zone (A=H+20 cm=> 40 cm)
Height of hearth
surface from floor
H
B
Floor made of
combustible material
