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FLY IDRO DSA
When the bar is pushed to the back the passage of the secondary is completely open.
The heating capacity of the rooms according to EN 13240 for buildings whose heat insulation does not correspond with the requisites
of the Regulation regarding heat insulation, is:
(30 Kcal/h x m
(40 Kcal/h x m
(50 Kcal/h x m3) - unfavourable type of construction:
With heat insulation suitable for the provisions regarding heat protection the heating volume is greater. With temporary heating, in the
case of interruptions exceeding 8h, the heating capacity decreases by about 25%.
5. 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.
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.
The minimum section must be 4 dm
dm
(for example 25x25 cm) for appliances with a diameter of more than 200 mm.
2
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.
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.
5.1. CHIMNEY POT
The flue 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 flue.
As it must always go past the ridge of the roof, the chimney pot must ensure exhaust even in the presence of wind.
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 flue.
• be built so as to prevent rain, snow or any foreign body entering the flue.
• be easy to inspect, for any maintenance and cleaning operations.
5.2. CONNECTION TO THE CHIMNEY
Products with automatic door closing (type 1) must operate, for safety reasons, with the furnace door closed (except during the fuel loading
or ash removal phases).
Products with non-automatic door closing (type 2) must be connected to their own flue.
Operation with doors open is only allowed when supervised.
The connection pipe to the flue must be as short as possible, straight horizontal and positioned slightly in ascent, and watertight.
Connection must be carried out with stable and robust pipes (we recommend a thickness of 2 mm) and be hermetically secured to the flue.
The internal diameter of the connection pipe must correspond to the external diameter of the cooker flue gas exhaust stub pipe (DIN 1298).
CAUTION: if the connection passes particular compounds of flammable material, in the radius of 20cm around the pipe, all flammable
material must be replaced by fireproof, heat resistant materials.
For correct appliance operation, it is essential that sufficient air for combustion is introduced into the place of installation (see paragraph 6).
The chimney pressure (DRAUGHT) must be at least 17-20 Pascal (=1.7-2 mm of water column). The measurement must always be
carried out when the appliance is hot (nominal calorific power). When the pressure exceeds 20 Pascal (2 mm of water column), it is
necessary to reduce it through the installation of an additional draught regulator (false air valve) on the exhaust pipe or in the chimney.
5.3. CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUE
The flue gas channel is the stretch of piping which connects the thermo-product to the flue. In the connection, these simple but extremely
important principles must be respected:
• under no circumstances use a flue gas channel with a diameter less than that of the exhaust clamp with which the thermo-product
7193505 - IT-EN-DE-FR
) - favourable type of construction:
3
) - less favourable type of construction:
3
Picture 2 at page 52
shows some example solutions.
(for example 20x20 cm) for appliances whose pipe dimensions are less than 200 mm, or 6.25
2
(Picture 3 at page 52 -Picture 4 at page
441 m³
331 m³
264 m³
53).
19
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