Wall marking: � Draw a vertical line on the supporting wall up to the ceiling, or as high as practical, at the centre of the area in which the hood will be installed. � Draw a horizontal line at 650 mm above the hob for installation without the back panel, or at height H (H=height of the visible part of the panel) for installation with the back panel. � Place bracket 7.2.1 on the wall as shown about 1-2 mm from the ceiling or upper limit aligning the centre (notch) with the vertical reference line. � Mark the wall at the centres of the holes in the bracket. � Place bracket 7.2.1 on the wall as shown at X mm below the first bracket (X = height of the upper chimney section supplied), aligning the centre (notch) with the vertical line. � Mark the wall at the centres of the holes in the bracket. � Place bracket 7.1 as shown 95 mm from the vertical reference line and 210 mm above the horizontal reference line. � Mark the centres of the holes in the bracket. � Repeat this operation on the other side. REAR PANEL (OPTIONAL) The Rear Panel must be fitted before fixing the hood body and, if it is to be fixed at both top and bottom, must be fitted at the correct height prior to installing the bases. As this operation is rather complex, it should be carried out either by the kitchen installer or a qualified person who knows the final dimensions of the units. For fixing at the top only, proceed as follows: � Rest the back panel on the base, inserting the lower plate between the upper surface and the wall, centring it on the vertical reference line. � Mark the centres of the two holes in the upper plate. � Drill ø 8 mm holes at all the centre points marked. � Insert the wall plugs 11 in the holes. � Fix the brackets using the 12a screws (4,2 x 44,4) supplied. � Fix the back panel (where present) using the 12a (4,2 x 44,4) screws supplied.