LA NORDICA Monoblocco 900 Piano Manuel Utilisateur page 22

FIRST-AID MEASURES
Should any fire arise in the stack or in the flue:
a) Close the feeding door.
b) Close the registers of combustion air
c) Extinguish the fire using carbon dioxide fire-fighting means (CO
d) Seek immediate intervention of FIRE BRIGADE.
DO NOT ExTINGUISH FIRE USING WATER JETS. When the flue does not burn any more please arrange an examination by a
specialist in order to find possible cracks and permeable points.
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 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
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. When positioned completely
to the left, air is all open. 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 valve must be opened (and therefore shifted to the right), 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).
The adjustment of the registers necessary to reach the rated calorific yield is the following one:
MONOBLOCCO 600
MONOBLOCCO 900
22
POKER
SERIES
(Picture 8)
(Picture 8)
Hourly consumption (kg/h)
2,9
4,4
dust).
2
Picture 2
gives some examples of execution.
GLOVE Ventilation KIT
SERIES OPTIONAL
PRIMARY air
CLOSED
Closed
ENgLIsH
SECONDARY air TERTIARY AIR
OPEN PRE-ADJUSTED
Open Pre-adjusted