LA NORDICA TERMOSUPREMA COMPACT DSA Instructions For Installation, Use And Maintenance Manual

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LA NORDICA TERMOSUPREMA COMPACT DSA Instructions For Installation, Use And Maintenance Manual Manual pdf 21 page image

TERMOSUPREMA COMPACT DSA / ITALY TERMO DSA7095802 - IT - EN - DE - FR 21A section of the flue which is too large can present a volume which is too large to heat and therefore cause operating difficulties for theappliance; to avoid this, it is necessary to intubate the appliance for its entire height. A section which is too small causes a reduction indraught.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 flueitself, for the connection of further different appliances (See chapter CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUE).6.1. CHIMNEY POTThe 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(Picture 3 at page 33) .As it must always go past the ridge of the roof, the chimney pot must ensure exhaust even in the presence of wind (Picture 4 at page 34).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.6.2. CONNECTION TO THE CHIMNEYProducts with automatic door closing (type 1) must operate, for safety reasons, with the furnace door closed (except during the fuel loadingor 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).ATTENTION: as far as concern the realisation of the flue connection and flammable materials please follow the requirementsprovided by UNI 10683 standard.IMPORTANT: the unused flue gas exhaust hole must be covered with its respective cap (See chapter: TECHNICAL DATA SHEETpos. A).The chimney pressure (DRAUGHT) must be at least 17-20 Pascal (=1.7-2 mm of water column). The measurement must always be carriedout when the appliance is hot (nominal calorific power). When the pressure exceeds 20 Pascal, it is necessary to reduce it through theinstallation 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 sufficient air for combustion is introduced into the place of installation (see paragraph 7).6.3. CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUEThe flue gas channel is the stretch of piping which connects the thermo-product to the flue. In the connection, these simple but extremelyimportant 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 isequipped;• each metre of the horizontal stretch of the flue gas channel causes a slight loss of head which must be compensated if necessary byelevating the flue;• the horizontal stretch must never exceed 2 metres (UNI 10683-2005);• each bend of the flue gas channel slightly reduces the flue draught which must be compensated if necessary by elevating it suitably;• The UNI 10683-2005 – ITALY regulation requires that under no circumstances must there be more than 2 bends or variations indirection including the intake into the flue.If the user wishes to use the flue as a fireplace or open hearth, it is necessary to seal the hood below the entrance point of the flue gaschannel pos. A Picture 6 at page 35.If the flue 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 least200mm, pos. B, taking care to close the remaining spaces between the pipe and the flue immediately under the chimney pot pos. C.7. AIR FLOW IN THE PLACE OF INSTALLATION DURING COMBUSTIONAs the thermo-product draw their combustion air from the place of installation, it is MANDATORY that in the place itself, a sufficient quantityof 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 isno longer guaranteed and this jeopardises the draught of the appliance and your health and safety. It is therefore necessary to guaranteea supply of fresh air through an external air inlet placed near the appliance or by placing piping for combustion air which leads outside orto 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 absolutelyessential that in environments in which thermo-products are operated with a natural chimney draught, as much air as is necessary forcombustion is introduced, i.e. up to 25 m³/hour. The natural recirculation of air must be guaranteed by some fixed openings to the outside.Their size is established by regulations regarding the subject. Ask for information from a chimneys weep. The openings must be protectedwith grills and must never be blocked up. An extractor hood (suction) installed in the same room or in a neighbouring one causes adepression in the environment. This causes the leakage of burnt gas (dense smoke, smell); it is therefore necessary to ensure a greaterflow of fresh air.The depression of an extractor hood can, in the worst case scenario, transform the flue of the thermo-product into an externalair inlet, re sucking the flue gases into the environment with very serious consequences for persons.