Beam Protections; Description; Flue - LA NORDICA MONOBLOCCO 1000 Manuel Utilisateur

BEAM PROTECTIONs

Considering the irradiation of the hearth, it is necessary to be particularly careful in protecting the beams while designing your stack. Consider
the proximity of beams to the external surfaces of the hearth, on one side, and the irradiation of the glass door, usually very close to the beams,
on the other side. In any case, it has to be considered that the internal or lower surfaces of this beam in flammable material must not come in
contact with temperatures higher than 65 °C.
WARNINg: We cannot be made liable for a wrong operation of the plant, when it does not comply with the provisions of
these instructions or when it uses additional products not suitable for this device.

DEsCRIPTION

Definition: product according to EN 13229 the appliance works as an intermittent operating appliance.
The devices La Nordica are suitable to heat living spaces for some periods. As fuel, wood logs are used. .
The device is made up of metal sheet plates in painted steel, castings of cast iron and refractory materials.
The hearth is coated by cast iron castings and refractory material plates, the grate holder and the related extractible grating are both made of
cast iron. The combustion chamber assembly is air-tight by welding and covered with a galvanized sheet metal carter.
The devices are equipped with an integrated air circuit for the recovery of the heat made up of deflectors (radiant fins) on all external surfaces
of the heating body.
The devices are equipped with a hearth with double thickness rear part made up of a drilled extractible plate.
Through these holes, pre-heated air gets into the hearth; in this way, it is possible to achieve a post-combustion with an increase of the yield
and a reduction of emissions of unburnt gases.
The sight door is assembled on extensible ball guides, which assure a robust and silent operation reliable in time.
The door lifting counter-weight is supported by two sturdy chains with related pinions.
The ceramic glass (resistant up to 700 °C) of the door allows a charming view on burning flames and avoids any leak of sparks and smoke.
ACCEssORIEs
The heating of the room occurs:
a) by convection: the passage of air through the coating and the covering hood releases heat in the room.
b) by radiation: through the sight glass and the steel body, heat is radiated into the room.
The device is equipped with registers of primary and secondary air, with which it is possible to adjust the combustion air.
1A - PRIMARY air register
(Picture
With the air register located under the door of the hearth (on the left), it is possible to adjust the air flow through the ash drawer and the
grating in direction of the fuel. The primary air is necessary for the combustion process. In order to open the passage of primary air the
lever should be completely pulled. The ash drawer has to be emptied regularly, so that ash cannot hinder the intake of primary air for the
combustion. Primary air is also necessary to keep fire live.
During the combustion of wood, the primary air register must be opened only a few, since otherwise the wood burns quickly and the
device can overheat (see chapter NORMAL OPERATION).
2A - sECONDARY air register
Under the door of the hearth (on the right) there is a secondary air register.
This register must be opened (and therefore the lever completely pushed), in detail, for the combustion of wood, so that unburnt carbon
can be subject to a post-combustion, increasing the yield and assuring the cleaning of the glass (see chapter NORMAL OPERATION). It
is possible to get the air sECONDARY directly from outside through a flexible tube fireproof NOT furnished (see chapter EXTERNAL
AIR INTAKE).
The adjustment of the registers necessary to reach the rated calorific yield is the following one:
MONOBLOCCO Hourly consumption (kg/h)
1000
1300
1300 H800

fLUE

Essential requirements for a correct operation of the device:
• the internal section must be preferably circular;
• be thermally insulated and water-proof and produced with materials suitable to resist to heat, combustion products and
possible condensates;
• not be throttled and show a vertical arrangement with deviations not greater than 45°;
• if already used, it must be clean;
• all the sections of the flue gas duct must be accessible to inspection;
• inspection openings must be provided for cleaning.
• observe the technical data of the instructions manual;
Picture 2 gives some examples of execution.
POKER
SERIES
8)
(Picture 8)
3
3,9
3,9
Ventilation KIT
GLOVE
SERIES
PRIMARY air sECONDARY air
Closed
Closed
Closed
ENgLIsH
OPTIONAL
Open
Open
Open
TERTIARY AIR
Pre-adjusted
Pre-adjusted
Pre-adjusted
23