Description; Flue - LA NORDICA FOCOLARE 80 IDRO CRYSTAL DSA Benutzerhandbuch

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 fireplace is found inside the boiler, is built in 4 mm thick steel and is reinforced using welded nails. The water in the heating
system circulates in the boiler, which absorbs the heat produced in the fireplace.
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.
ACCEssORIEs
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, 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 air flow, the bar must be
completely pulled out. 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.
The primary air register must be almost completely closed during wood combustion, as otherwise the wood burns too
quickly and the thermo-product may overheat.
2A- SECONDARY air register
When the bar is pushed to the back the passage of the secondary is completely open.
The secondary air, passing through the two lateral jambs of the front side, heats itself starting the double combustion and keeping
at the same time the glass clean (with open register).
The adjustment of the registers necessary to reach the rated calorific yield is the following one:
Hourly consumption ( kg/h )
4,5

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
POKER
SERIES
(Picture
8)
(Picture
8)
PRIMARY air
CLOSED
Picture 3 gives some examples of execution.
GLOVE
SERIES
sECONDARY air
OPEN
(Picture 4).
ENgLIsH
TERTIARY AIR
PRE-ADJUSTED
27