Flue - La Nordica AMERICA Manual Del Usuario

2A - sECONDARY Air Register
On the upper part of the front side there is the secondary air register. This knob must be opened (so anticlockwise moved), especially for
wood combustion (see Table). The secondary air, passing out the double glass of the fire door, heats itself starting the double combustion
and keeping at the same time the glass clean ( with open register).
B - fLUE gAs Register
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(Conversion from the cooker HOTPLATE USE function to the cooker HEATING - OVEN USE function)
On the central part of the front side, there is the command bar of the smokes register which is an emailed and marked knob.
When the bar is pushed on the left of the cooker, the combustion gases flow over the oven directly into the small trunk of exhaust (cooker
function – PLATE UsE); when on the contrary one pulls the lever on the right, the combustion gases flow all around the oven, so that the
internal temperature is increased in an uniform way (cooker – oven cooking and HEATING – OVEN UsE).
The register regulation necessary in order to obtain nominal calorific output is the following (see Cap. TECHNICAL DATA):
Hourly wood consumption in kg/h
3,5
C - LIgHTINg CONTROL
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On the top part of the cooker, between the enamel plate and the front side, there is bar with a chromed knob. This control must only be used
to facilitate the ignition of fuel in the cooker. The control lever must remain completely inserted (pushed inwards on the cooker).
When the fire is established , the control lever must to be pulled out.
IMPORTANT : during normal cooker operation, pull the lever outwards from the cooker (control open). In This way avoiding
excessive fuel consumption and poor cooker output.
To ignite the flame follow the instructions below (see Cap. IGNITION) :
• Open the FLUE GAs Register (cooker function – PLATE UsE) to aid flue gas exhaust. Position the register (any butterfly valve placed on the
flue gas exhaust pipe must also be opened).
• Open the primary air register (placed on the ash tray).
• After having started the fire with small pieces of wood and waited until it is well lit.
• Bring the flue gas register to the oven position.
• Close the any butterfly valve placed on the flue gas exhaust pipe must also be opened.
The control regulation during the ignition phase is the following :
Register

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.
The draught created by your flue must be sufficient but not excessive.
A section of the flue which is too large can present a volume which is too large to heat and therefore cause operating difficulties for the
appliance; to avoid this, it is necessary to intubate the appliance for its entire height. A section which is too small causes a reduction in 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 at a suitably distance from flammable or combustible material using
suitable insulation or an air space.
It is fORBIDDEN to pass system piping or air ducts inside the flue. It is also forbidden to create moveable or fixed openings on
the flue itself, for the connection of further different appliances (see chapter CONNECTING A FIREPLACE OR OPEN HEARTH TO THE
FLUE).
6).
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6)
PRIMARY air
CLOsED
6)
PRIMARY air sECONDARY air
OPEN
shows some example solutions.
sECONDARY air
OPEN
TERTIARY air
OPEN PRE-ADJUsTED
ENgLIsH
TERTIARY air sMOkEs control
PRE-ADJUsTED HEATING function
fLUE gAs control
PLATE UsE
23