Chimney Pot; Connection To The Chimney; Connecting A Fireplace Or Open Hearth To The Flue; Air Flow In The Place Of Installation During Combustion - Nordica VIOLETTA Anweisungen

VIOLETTA / GIULIETTA / ISETTA 07 / ISOTTA EVO / VIOLA / ISOTTA FORNO
The draught created by your lue must be suficient but not excessive.
A section of the lue which is too large can present a volume which is too large to heat and therefore cause operating dificulties 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 lue must be at a suitably distance from lammable or combustible material using suitable insulation or an air space.
It is FORBIDDEN to pass system piping or air ducts inside the lue. It is also forbidden to create moveable or ixed openings on the lue
itself, for the connection of further different appliances (See chapter CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUE).
6.1.

CHIMNEY POT

The lue 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 lue
(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
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 lue.
• Be built so as to prevent rain, snow or any foreign body entering the lue.
• Be easy to inspect, for any maintenance and cleaning operations.
6.2.

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 lue.
Operation with doors open is only allowed when supervised.
The connection pipe to the lue 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,comply with all current Standards and Regulations and to those envisioned
by the law, and be hermetically secured to the lue. The internal diameter of the connection pipe must correspond to the external diameter
of the cooker lue gas exhaust stub pipe (DIN 1298).
ATTENTION: as far as concern the realisation of the lue connection and lammable materials please follow the requirements provided by
UNI 10683 standard. The lue must be properly spaced from any lammable materials or fuels through a proper insulation or an air cavity.
IMPORTANT: the unused lue gas exhaust hole must be covered with its respective cap (See chapter: DIMENSIONS).
The chimney pressure (DRAUGHT) must be at least 11 Pa 12 Pa Pascal (=1,1 =1.2 mm of water column). The measurement must
always be carried out when the appliance is hot (nominal caloriic power). When the pressure exceeds 17 Pascal, 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, according to the
regulations in force.
For correct appliance operation, it is essential that suficient air for combustion is introduced into the place of installation (see paragraph 7).
6.3.

CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUE

The lue gas channel is the stretch of piping which connects the thermo-product to the lue. In the connection, these simple but extremely
important principles must be respected:
• under no circumstances use a lue gas channel with a diameter less than that of the exhaust clamp with which the thermo-product is
equipped;
• each metre of the horizontal stretch of the lue gas channel causes a slight loss of head which must be compensated if necessary by
elevating the lue;
• the horizontal stretch must never exceed 2 metres (UNI 10683);
• each bend of the lue gas channel slightly reduces the lue draught which must be compensated if necessary by elevating it suitably;
• The UNI 10683 – ITALY regulation requires that under no circumstances must there be more than 2 bends or variations in direction
including the intake into the lue.
If the user wishes to use the lue as a ireplace or open hearth, it is necessary to seal the hood below the entrance point of the lue gas
channel pos. A Picture 5 at page
If the lue is then too big (e.g. 30x40cm or 40x50cm), it is necessary to intubate it with a stainless steel tube with a diameter of at least
200mm, pos. B, taking care to close the remaining spaces between the pipe and the lue immediately under the chimney pot pos. C.

7. AIR FLOW IN THE PLACE OF INSTALLATION DURING COMBUSTION

As the thermo-product draw their combustion air from the place of installation, it is MANDATORY that in the place itself, a suficient quantity
of air is introduced. If windows and doors are airtight (e.g. built according to energy saving criteria), it is possible that the fresh air intake is
no longer guaranteed and this jeopardises the draught of the appliance and your health and safety. It is therefore necessary to guarantee
a supply of fresh air through an external air inlet placed near the appliance or by placing piping for combustion air which leads outside or
to a nearby airy place, with the exception of the boiler room or garage (FORBIDDEN).
The intake of air for combustion in the place of installation must not be obstructed during operation of the thermo-product. It is absolutely
essential that in environments in which thermo-products are operated with a natural chimney draught, as much air as is necessary for
combustion is introduced, i.e. up to 20 25 m³/hour. The natural recirculation of air must be guaranteed by some ixed openings to the
outside. Their size is established by regulations regarding the subject. Ask for information from a chimneys weep. The openings must be
protected with grills and must never be blocked up. An extractor hood (suction) installed in the same room or in a neighbouring one causes
1195300 - IT - EN - DE - FR
40.
(Picture 3 at page 39).
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