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NORMA IDRO DSA
placed on a minimum 12 cm thick slab made of stone or concrete. The base must extend at least 50 cm at the front and at least
30 cm at the sides, in addition to the opening of the loading door (see
d) No flammable components (e.g. wall units) must be present above the product.
The Product must always operate exclusively with the ash drawer inserted. The solid combustion residues (ash) must be collected in a
sealed, fire resistant container. The Product must never be on in the presence of gaseous emissions or vapours (for example glue for
linoleum, petrol etc.). Never deposit flammable materials near the Product.
During combustion, thermal energy is released which leads to considerable heating of the surfaces, doors, handles, controls, glass parts,
the flue gas pipe and possibly the front part of the appliance. Avoid contact with these elements unless using suitable protective
clothing or accessories (heat resistant gloves, control devices).
Ensure children are aware of these dangers and keep them away from the furnace when it is on.
When using the wrong fuel or one which is too damp, due to deposits present in the flue, a flue fire is possible.
4.1.
IN A EMERGENCY
If there is a fire in the flue connection :
a) Close the loading door and the ash drawer door
b) Close the comburent air registers
c) Use carbon dioxide ( CO
d) Request the immediate intervention of the Fire Brigade
DO NOT PUT OUT THE FIRE WITH WATER.
When the flue stops burning, have it checked by a specialist to identify any cracks or permeable points.
5. DESCRIPTION
Definition: thermo-fireplace according to EN 13240.
La Nordica thermoheating products are suitable for heating homes using a centralised heating system made up from radiators or heat
convectors entirely or partially replacing the traditional gas or diesel oil boiler. 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. (See chapter
CALCULATION OF THE THERMAL POWER).
The device is equipped with registers of primary and secondary air.
1A- PRIMARY AIR register
Below the hearth door, on the front left side, there is the primary air register, in the style of lever .
With this air register, it is adjusted the passage of primary air into the low part of the stove and through particular channels flows in the
fuel direction. The primary air is necessary for the combustion process during lighting. The ash drawer must be regularly emptied, so that
the ash does not obstruct the entry of the primary air for the combustion.
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
Below the hearth door, on the right front side there is the secondary air register.
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). When the bar is pushed to the back the passage of the secondary is completely open.
Ash drawer
(Picture 9 at page 55
The adjustment of the registers necessary to reach the rated calorific yield is the following one:
NORMA IDRO - DSA
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 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.
7197130 - IT-EN-DE-FR
powder ) extinguishers to put out the fire
2
(Picture 7 at page
55)
(Picture 7 at page
55).
pos. A).
Fuel
Wood
Picture 5 at page 53
PRIMARY air
SECONDARY air
CLOSED
- B).
TERTIARY AIR
OPEN
PRE- ADJUSTED
19
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