[. . . ] for assembling it is essential to: ­ Prepare the connection to the mains within the telescopic structure. ­ If your unit is installed in a ducting hood, prepare the air exhaust hole. Ductng version: - When installing ducting hoods, to achieve the best possible conditions use an air exhaust pipe that : is as short as possible, has a minimum of curves (maximum angle: 90°), is made of a material that complies with the standards (which vary from nation to nation) and is smooth on the inside. It is also advisable to avoid any drastic changes in pipe section (diameter: 150 mm). [. . . ] - Using the drilling jig make the holes for fixing to the ceiling on the vertical line of your hob; carefully follow all the indications for final positioning of the hood. Bear in mind that one of the axes of the drilling jig must correspond to the axis of the hood controls. Secure the telescopic structure to the ceiling using the screws and screw anchors provided (Fig. 3); Pay attention as positioning of the structure determines the final position of the hood: the opening B must be at the front. 5 bearing in mind that the distance between the hood and the hob must be at least 650 mm. - Take the flange with valve (E) and fit it to the air vent of the hood, exercising slight pressure (Fig. - Take the upper part of the hood (pipe with slots) and fit it on the telescopic structure with the slots at the bottom (Fig. Secure the lower part of the hood to the upper part, inserting the 4 pins (F) in the holes and lock everything with 4 nuts and 4 washers (Fig. At this point, installation has been completed and the grease filter can be fitted. FILTER ALARM: Displayed for 30" when the motor is off: After 30h of operation the central segment lights up on the display; It indicates that the grease filters need to be cleaned. After 120h of operation, the central segment flashes on the display; It indicates that the grease filters need to be cleaned and the charcoal filters replaced. After cleaning the grease filters (and/or replacing the charcoal filters), restart the hour counter (RESET) by pressing the key C during display of the filter alarm. GAS SENSOR SENSITIVITY: The sensitivity of the sensor can be modified to suit your requirements. The running speed and not the letter "A" must appear on the display); If not, press the key E. By means of the buttons C(-) and D(+) the desired sensitivity is set Store the "new" sensitivity by pressing the key E. aTTENTION: TO PREVENT DAMAGING THE SENSOR , DO NOT USE SILICONE PRODUCTS NEAR THE HOOD!Grease filters: The grease filters must be handled with particular care and must be cleaned periodically when the filter alarm appears. for instructions on the filter alarm refer to the paragraph Controls. [. . . ] Grease filters: The grease filters must be handled with particular care and must be cleaned periodically when the filter alarm appears. for instructions on the filter alarm refer to the paragraph Controls. 9): Open the metal panel gripping it at the front and turning it downwards. Remove the grease filter by pushing the catch and turning it outwards. [. . . ]