Technical Description; Flue - Nordica INSERTO 70 L Manuel Utilisateur

TECHNICAL DEsCRIPTION

Definition: product according to EN 13240 The appliance works as an intermittent operating appliance.
The appliance is made up of a series of cast-iron elements joined to one another by a fixed joint, while the seal is assured by refractory putty.
The assembly is supported by tie rods and nuts located outside the heating body and coated with a carter made of varnished and galvanized
sheet heat-resistant.
The appliances 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 appliances are equipped with a hearth with double thickness part.
The insert is equipped with a sight door with ceramic glass (resistant up to 700°C). This allows a charming sight on burning flames.
Moreover, in this way, any possible leak of sparks and smoke is avoided. Under the hearth grating there is a easily extractable ash
drawer, also when the appliance works.
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 during the ignition. When the knob is completely
on the left, the register is closed, when the knob is completely on the right the register is opened. 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
On the door of the hearth to the right, there is a secondary air register.
This register must be opened (and therefore shifted to the right), in detail, for the combustion of wood, so that unburned 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:
Hourly consumption ( kg/h )
INsERTO 70L

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;
Should the flues have a square or rectangular section, internal edges must be rounded with a radius not lower than 20 mm. For the rectangular
section, the maximum ratio between the sides must be = 1.5.
A too small section causes a decrease of the draught. It is suggested a minimum height of 4 m.
The following features are FORBIDDEN and therefore they endanger the good operation of the device: asbestos cement, galvanized steel,
rough and porous internal surfaces. In
For a correct installation please respect the sections/lengths of the flue shown in the technical data table. By installations
with different dimensions the flue must be suitably sized in accordance with EN13384-1.
The draught created by the flue must be sufficient, but not excessive.
A too big flue section can feature a too big volume to be heated and consequently cause difficulties in the operation of the device; to avoid
this, tube the flue along its whole height. A too small section causes a decrease of the draught.
ATTENTION: as far as concern the realisation of the flue connection and flammable materials please follow the requirements
provided by UNI 10683 standard. The flue must be properly spaced from any flammable materials or fuels through a proper
insulation or an air cavity.
It is FORBIDDEN to let plant piping or air feeding channels pass in the same flue. Moreover, it is forbidden to create movable or
fixed openings on the same for the connection of further other devices
22
POKER
SERIES
8)
8)
(Picture
2,7
Picture 3 gives some examples of execution.
GLOVE
SERIES
PRIMARY AIR sECONDARY AIR
CLOSED
4).
(Picture
ENgLIsH
TERTIARY AIR
OPENED
NO