The Flue - La Nordica VIOLA EVO Manual Del Usuario

ACCEssORIEs
GIULIETTA x ISETTA EVO
POKER
SERIES
GLOVE
SERIES
The heating of the environment is made by irradiation: through the panoramic glass and the external hot surfaces of the stove, the heat is
radiated into the environment. The device is equipped with registers of primary and secondary air by which it is adjusted the combustion air.
A - sECONDARY Air register
Over the door of the hearth there is the secondary air control.
This regulator must be open (the lever must be moved to the right), especially for wood combustion, so that unburnt carbon undergoes
a post-combustion (see chapter NORMAL OPERATION).
Through this register it is possible to adjust the power of the stove. Leaving it slightly open, according to the flue of the chimney, it is
possible to keep the glass clean.
Picture 6
B - PRIMARY Air register
With the thermostat (ISETTA EVO, ISOTTA EVO, VIOLA EVO) or valve (GIULIETTA x, VIOLETTA x) placed on the back of the right side of
the stove, it is adjusted the passage of air through the ash drawer and the grate in the fuel direction. The primary air is necessary for the
combustion process. The ash drawer must be regularly emptied, so that the ash does not obstruct the primary air entry. Through the
primary air the fire is also kept alive.
During wood combustion, the register of primary air must be opened only for a while, because otherwise the wood burns fast and the
stove may overheat. For the correct arrangement (see paragraph NORMAL OPERATION).
The adjustment of the registers necessary to reach the rated calorific yield is the following one:
GIULIETTA x
ISETTA EVO
ISOTTA EVO
ISOTTA FORNO
ISOTTA FORNO EVO
VIOLA EVO
VIOLETTA x
Picture 6
C - IgNITION CONTROL
Close --; Open +
Lighting Operation :
Open the secondary air register (A), primary air register (B), open the ignition control (C), light up the fire.
After about 10 minutes, when the fire is lighted, close the thermostat (B) and the ignition control (C) and adjust the combustion course
with the controls (A). The openings for air (primary and secondary) must be opened together just a little (you must open the eventual
butterfly valve placed on the pipe of smokes exhaust). See chapter LIGHTING.
Load The Fuel:
Before opening the hearth door, open the ignition control (C), load the fuel, close the door and after about 5 or 10 minutes close the
control (C). IMPORTANT: we suggest you to open the door very slowly, to avoid the exit of smokes.

THE FLUE

Essential requirements for correct appliance operation:
• the internal section must preferably be circular;
• the appliance must be thermally insulated and impermeable and built with suitable materials which are resistant to heat,
combustion products and any condensation;
• there must be no narrowing and vertical passages with deviations must not be 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.
• the technical data from the instruction manual must be respected;
If the flues are of a square or rectangular section, the internal edges must be rounded with a radius of not less than 20 mm.
For the rectangular section, the maximum ratio between the sides must be ≤ 1.5.
A section which is too small causes a reduction in draught. A minimum height of 4 m is advisable.
The following materials are FORBIDDEN and compromise the good operation of the appliance: asbestos cement, galvanised steel, rough and
Picture 1
porous internal surfaces.
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.
ISOTTA EVO ISOTTA FORNO
SERIES SERIES
SERIES SERIES
Picture 6
Mass of fuel hourly
kg/h
1,9
2,2
2,5
3,2
2,6
2,2
1,9
( NO Isotta Forno EVO )
shows some example solutions.
SERIES
SERIES
(A )
SECONDARY Air
Picture 6
OPEN 5 mm
OPEN
OPEN
Picture 6
OPEN 5 mm
Picture 6
ENgLIsH
ISOTTA
VIOLA EVO VIOLETTA x
FORNO EVO
SERIES SERIES
SERIES SERIES
(B)
TERTIARY Air
PRIMARY Air
CLOSED PRE-CALIBRATED
CLOSED
OPEN 5 mm
OPEN 5 mm
CLOSED PRE-CALIBRATED
CLOSED
CLOSED PRE-CALIBRATED
See chapter LIGHTING
SERIES
SERIES
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