Nordica INSERTO 50 Crystal User Manual

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Nordica INSERTO 50 Crystal User Manual Manual pdf 8 page image

ENGLISHThe following features are FORBIDDEN and therefore they endanger the good operation of the device: asbestos cement, galvanized steel,rough and porous internal surfaces. In Picture 3 gives some examples of execution. For a correct installation please respect the sections/lengths of the flue shown in the technical data table. By installationswith different dimensions the flue must be suitably sized in accordance with EN13384-1.The draught created by the flue must be sufficient, but not excessive.A too big flue section can feature a too big volume to be heated and consequently cause difficulties in the operation of the device; to avoidthis, tube the flue along its whole height. A too small section causes a decrease of the draught.ATTENTION: as far as concern the realisation of the flue connection and flammable materials please follow the requirementsprovided by UNI 10683 standard. The flue must be properly spaced from any flammable materials or fuels through a properinsulation or an air cavity.It is FORBIDDEN to let plant piping or air feeding channels pass in the same flue. Moreover, it is forbidden to create movable orfixed openings on the same for the connection of further other devices (Picture 4).CHIMNEY CAPThe draught of the flue depends also on the suitability of the chimney cap.Therefore, if it is handicraft constructed, the output section must be more than twice as big as the internal section of the flue (Picture 5).Should it be necessary to exceed the ridge of the roof, the chimney cap must assure the discharge also in case of windy weather (Picture 6).The chimney cap must meet the following requirements:• have internal section equivalent to that of the stack.• have a useful output section twice as big as the flue internal one.• be manufactured in such a way as to prevent the penetration of rain, snow, and any other foreign body in the flue.• be easily checkable, for any possible maintenance and cleaning operationCONNECTION TO THE FLUEThe connection to the stack must be performed with stiff pipes in steel comply with all current Standards and Regulations and to thoseenvisioned by the Law.It is FORBIDDEN to use metallic pipes or pipes in asbestos cement since they jeopardize the safety of the fitting itself,considering that they are subject to tears or breaks resulting in leaks of smoke.The exhaust pipe must be air-tight fastened to the stack and can have a maximum inclination of 45°; this to avoid excessive deposits ofcondensate produced in the initial start-up phases and/or the excessive gripping of soot and moreover it avoids the slowing down of thesmokes at output.The failed tightness of the connection can cause the malfunction of the device.The internal diameter of the connection pipe must be equal to the external diameter of the smokes stub pipe of the device. This is assuredby the pipes complying with DIN 1298.The chimney pressure (DRAUGHT) must be at least (see chap. TECHNICAL DATA SHEET) . The measurement has always to be carried outwith hot device (rated thermal performance).When the depression exceeds 17 Pascal (=1.7 mm of column of water), it is necessary to reduce the same by installing an additional draughtregulator (butterfly valve). IMPORTANT: When using metallic pipes, they must be insulated with proper materials (coatings in insulating fibers resistantup to 600°C) in order to avoid deterioration of walls or of the counter-hood.Before positioning the insert in the pre-existing fireplace, it is necessary to close the upper internal part of the stack using (properly pre-drilled) sheet metal or any other kind of fire-resistant material that can support very high temperatures without suffering any damage. (seePicture 7 pos. 1 Inserti - Picture 13).AIR FOR COMBUSTIONIt is necessary to ventilate continuously the space included between the upper part, the sides of the device and the deflector of the fire-proofing material of the hood.For this reason, it is necessary to foresee an intake of air from the bottom (intake of fresh air) and a high output (output of hot air).Each of these openings must be free and it should not be possible to obstruct it; moreover, they must have a minimum surface of at least 3dm2 (example: 30 x 10 cm grating).In this way, the following targets are achieved:• a greater safety• an increase of the heat created by air circulation around the device.• a better working of the applianceThe heat vent grating (Picture 7 pos. 6 - Picture 13) has to be installed on the upper part of the hood at about 20 cm from theroof. This must always be installed since its function is that of letting the heat collected within the hood (overpressure) flow out intothe room.24