Bedienungsanleitung La Nordica America (Seite 15 von 44) (Deutsch, Englisch, Französisch, Italienisch)

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16 7096101 - IT - EN - DE - FR

direction of the fuel. The primary air is necessary for the combustion process. The ash drawer must be emptied regularly, so that the ash

cannot block the primary air intake for combustion. The primary air also keeps the ame alive.

The primary air register must be almost completely closed during wood combustion, as otherwise the wood burns too quickly and the

cooker may overheat.

2A - SECONDARY Air Register (Picture 6 at page 41).

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 re door, heats itself starting the double

combustion and keeping at the same time the glass clean ( with open register).

B - FLUE GAS Register (Picture 6 at page 41 )

(Conversion from the cooker HOTPLATE USE – OVEN USE function to the cooker HEATING 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 ow 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 ow all around the oven, so that the

internal temperature is increased in an uniform way (cooker – oven cooking and heating – OVEN USE).

C - LIGHTING CONTROL (Picture 6 at page 41)

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).

IMPORTANT: during normal cooker operation, pull the lever outwards from the cooker. In this way avoiding excessive fuel consumption

and poor cooker output.

To ignite the ame follow the instructions below (see Cap. IGNITION) :

• Open the FLUE GAS Register (cooker function – PLATE USE) to aid ue gas exhaust. Position the register (any buttery valve placed

on the ue gas exhaust pipe must also be opened).

• Open the primary air register (placed on the ash tray).

• After having started the re with small pieces of wood and waited until it is well lit.

• Bring the ue gas register to the oven position.

• Close the any buttery valve placed on the ue gas exhaust pipe must also be opened.

The register regulation necessary in order to obtain nominal caloric output is the following (see Cap. TECHNICAL DATA):

Hourly wood consumption in kg/h PRIMARY air SECONDARY air SMOKES control

3,1 CLOSED OPEN Cooker function

6. 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;

• the technical data from the instruction manual must be respected;

If the ues 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 porous internal surfaces. Picture 1 at page 38 shows some example solutions.

The minimum section must be 4 dm

(for example 20x20 cm) for appliances whose pipe dimensions are less than 200 mm, or 6.25

(for example 25x25 cm) for appliances with a diameter of more than 200 mm.

The draught created by your ue must be sufcient but not excessive.

A section of the ue which is too large can present a volume which is too large to heat and therefore cause operating difculties 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.

The ue must be at a suitably distance from ammable or combustible material using suitable insulation or an air space.

It is FORBIDDEN to pass system piping or air ducts inside the ue. It is also forbidden to create moveable or xed openings on the ue

itself, for the connection of further different appliances (See chapter CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUE).

6.1. CHIMNEY POT

The ue draught depends on the suitability of the chimney pot.

It is therefore essential that, if built in a handcrafted way, the exit section is more than twice the internal section of the ue

(Picture 2 at page 38) .

As it must always go past the ridge of the roof, the chimney pot must ensure exhaust even in the presence of wind (Picture 3 at page 39).

The chimney pot must meet the following requirements:

• Have an internal section equivalent to that of the chimney.

• Have a useful exit section of double the internal section of the ue.

• Be built so as to prevent rain, snow or any foreign body entering the ue.

• Be easy to inspect, for any maintenance and cleaning operations.

La Nordica America Seite 15

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