[. . . ] 3), a vacuum suction unit must be connected; this exhaust will operate separately, conveying the exhaust air through the unit. To facilitate installation, before starting remove the grease filter/s: press inward on the clamp at the handle and pull the filter downward (Fig. As previously specified in the chapter "Warning" remember there must be a minimum of 650 mm between the bottom edge of the hood and the stop of the stove. [. . . ] Take the 2 assembled extension pipes and set them on the hood; extend the upper pipe to the ceiling and secure with the 2 screws (G) - Fig. Extend the lower pipe taping it in place and then connect the flexible pipe to the hood reduction. Install the carbon filter by pressing the 2 tabs on the filter down into the special housing (Fig. Depending on the model, the unit is equipped with the following commands: Commands shown in Fig. Button B = turns the TIMER on/off: press once to turn the timer on, therefore, after 5 minutes, the motor cuts out (at the same time the selected speed blinks on the display); the timer remains on if the motor speed is changed. Display C = - indicates the selected motor speed (from 1 to 4); - indicates Timer On when the number blinks; - indicates Filter Alarm when the central segments is on or blinking. Button D = makes the motor work (at the last speed selected); pushing the button again, the speeds of the motor are sequentially selected from 1 to 4; keeping this button pressed for about 2 seconds shuts down the motor. When the central segment on the display goes on), the anti-grease filters must be cleaned (30 hours of operation); when the central segment starts Blinking, the anti-grease filters must be cleaned and the charcoal filters replaced (120 hours of operation). Obviously, if the hood is not a filtering model and does not have a charcoal filter , clean the anti-grease filters both when the central segment goes on and when it starts blinking. The filter alarm can be seen when the motor is off and for about 30 seconds. To reset the hour counter, keep the button pressed for 2 seconds while the alarm can be seen. 18: Button A: turns the lights on/off; every 30 hours of operation the corresponding pilot lamp (S) comes on to indicate that the anti-grease filters must be cleaned; every 120 hours of operation the corresponding pilot lamp (S) flashes to indicate that the anti-grease filters must be cleaned and the charcoal filter replaced. To restart the hour counter (RESET), hold the button A pressed down for about 1" (while the pilot lamp S is on). Button B: drives the motor in first speed (the corresponding pilot lamp comes on); when holding it down for about 1", the motor cuts out. [. . . ] If the model purchased has the commands shown in Figure 17, the charcoal filters must be replaced according to use: on average once every 6 months. If the model purchased has the commands shown in Figure 18, the charcoal filters must be replaced each time the light button (Fig. 20: if your appliance has the same kind of lights as in the figure 20, to replace the incandescent light bulbs remove the anti-grease filters and remove it; replace with light bulbs of the same type. [. . . ]