External Air Intake In The Installation Area During Combustion - Nordica FOCOLARE 80 Idro Crystal - DSA Instructions Pour L'installation, L'utilisation Et L'entretien

A connection that is not hermetically sealed can cause the appliance to malfunction.
The internal diameter of the connection pipe must correspond to the external diameter of the exhaust pipe on the
appliance. This is guaranteed by pipes to DIN 1298 standard.
The depression to the chimney must be 17 – 20 Pa (1.7 – 2 mm of column of water).
The measurement must always be made with the appliance warm (nominal heat yield). When depression exceeds 20
Pa (2 mm of column of water), it is necessary to reduce it by installing a supplementary draught regulator (butterfly
valve) into the discharge pipe or into the chimney.
IMPORTANT: With the use of metal pipes, it is indispensable that they be insulated with a suitable material
(coverings in insulating fibre resistant up to 600°C) to prevent deterioration of the masonry or of the
counterplate.
It is indispensable that the space between the upper part, the sides of the appliance, and the incombustible material
deflector on the hood be constantly ventilated.
For this reason, there must be an air intake from below (cool air inlet) and an outlet above (warm air outlet).
The spaces for air circulation indicated in Picture 13 are the minimum requirements:
This will provide:
•
greater safety
•
an increase of heat produced by the circulation of air around the appliance.
ATTENTION: We recommend making the counterplate in fire-retardant plasterboard with self-supporting metal frame,
so that its weight does not bear on the aesthetic covering (marble). We recommend providing an inspection
door on the counter plate or elsewhere as suitable to provide easy accessibility and visibility of the safety
devices (pressure gauges, valves,..) .
(1) Insulating material
(3) Insulating coating with external
aluminum sheet
(4) Door for cleaning
(5) External air intake
The heat breather grille (Picture 13 pos.6) is installed on the upper part of the hood at about 20 cm from the ceiling.
It must always be installed, as its function is to allow the heat accumulated inside the hood (overpressure) to come
into the room.
7.

EXTERNAL AIR INTAKE IN THE INSTALLATION AREA DURING COMBUSTION

To ensure efficient operation of the appliance, it is MANDATORY that the place of installation has sufficient air intake
for combustion and for re-oxygenation of the room itself. This means that, by way of dedicated openings
communicating with the outside, combustion air must be able to circulate even when the doors and windows are
closed.
•
The air intake must be positioned in such a way that it cannot be obstructed.
•
It must be communicating with the room in which the appliance is installed and must be protected with
a grille.
•
If the air flow is obtained through openings communicating with the outside of adjacent rooms, do not
use (FORBIDDEN) air intakes in connection with a garage, kitchen, bathroom, or heating plant.
Minimum dimensions:
26
Top: minimum opening 1000 cm2
Base: minimum opening 750 cm2
(2) Seal
∅ ∅ ∅ ∅ 250 / 300 mm
Focolare 80 Idro Crystal - DSA
2
1000cm
(6) Heat drain grating
(7) Fire-retardant counter-hood
(8) Maximum inclination 45°
(9) Shield wooden parts with
(10) Min. distance between Coating
and insert min 4 cm
2
750cm
6097811 Rev.04 – EN
Picture 13