Description; Flue - LA NORDICA TERMOCAMINO-650 Manuel Utilisateur

DEsCRIPTION

Definition: thermo-fireplace according to EN 13229.
La noRdiCa thermo-fireplace are ideal for holiday flats and weekend houses or as auxiliary heating all year round. Wooden logs are used as
fuel. The appliance works as an intermittent operating appliance.
The appliance is composed of painted and galvanised sheet steel and cast iron. The boiler body is made of 4 mm thick steel, and the fire bed
and removable grille are both made of cast iron. The appliance is equipped with a smoke deflector, inserted between the two upper cylindrical
pipes, which is easy to remove for quick and handy cleaning of the inside part. The circular combustion chamber has a perforated central back
piece in cast iron. pre-heated air reaches the inside of the hearth through these holes, thus providing post-combustion with an increase in
yield and a reduction of emissions of unburnt gasses.
The door with viewing window is fitted on extendible ball bearing guides that guarantee the sturdy, quiet, and reliable operation of the
appliance. The counterweight for door raising is supported by two sturdy chains with respective pinions.
The ceramic glass window (resistant up to 700°C) of the door provides a lovely view of the burning flames and prevents sparks and smoke
from getting out.
Room heating takes place:
a) by radiation: the heat is radiated into the environment through the panoramic window and the hot external surfaces of the thermo-
fireplace;
b) by conduction: radiators or heat convectors of the centralised system fed by hot water produced by the boiler.
The device is equipped with registers of primary air, with which it is possible to adjust the combustion air. The secondary
and tertiary air flows are predetermined.
1A- PRIMARY air register
(Picture
With the air register located under the door of the hearth, 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. 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.
The adjustment of the registers necessary to reach the rated calorific yield is the following one:
Hourly consumption ( kg/h )
6,7

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
ACCEssORIEs
8)
PRIMARY air
open
Picture 3
gives some examples of execution.
POKER
seRies
sECONDARY air
pRe-adJUsTed
4).
(Picture
ENgLIsH
GLOVE
seRies
TERTIARY AIR
pRe-adJUsTed
25