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La Nordica Termocamino WF25 X DSA Manual

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ENGLISH
DESCRIPTION
Denition: thermo-replace according to EN 13229.
La NORDICA thermo-replace are ideal for holiday ats 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 replace 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 replace. A swivelling, removable grid is found inside the replace (Picture 12
pos. A). Ash drawer (Picture 12 pos. B).
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 window (resistant up to 700°C) of the door provides a lovely view of the burning ames and prevents sparks and smoke
from getting out.
ACCESSORIES
POKER GLOVE
WF25 - WF25X - WF25 Plus SERIES SERIES
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-
replace;
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 and secondary air, with which it is possible to adjust the combustion air.
1A- PRIMARY air register (Picture 8)
With the air register located under the door of the hearth, it is possible to adjust the air ow 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 ow, 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 re 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 (Picture 8)
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 caloric yield is the following one:
Hourly consumption ( kg/h ) PRIMARY air SECONDARY air TERTIARY AIR
WF25 11 Figura 8 C CLOSED Figura 8 C OPEN PREADJUSTED
WF25 X 8 Figura 8 C CLOSED Figura 8 C OPEN PREADJUSTED
WF25 Plus 5,4 Figura 8 C CLOSED Figura 8 C OPEN PREADJUSTED
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 ue gas duct must be accessible to inspection;
• inspection openings must be provided for cleaning.
• observe the technical data of the instructions manual;
Should the ues 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 Picture 3 gives some examples of execution.
For a correct installation please respect the sections/lengths of the ue shown in the technical data table. By installations
with dierent dimensions the ue must be suitably sized in accordance with EN13384-1.
The draught created by the ue must be sucient, but not excessive.
A too big ue section can feature a too big volume to be heated and consequently cause diculties in the operation of the device; to avoid
this, tube the ue along its whole height. A too small section causes a decrease of the draught.
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