Smeg P1640X Manual page 15

Instructions for the installer
7.2 Placing the insulating seal
Carefully position the supplied insulating seal on the outer perimeter of the hole
made in the counter top as shown in the figure below, trying to make it stick on
the entire surface by applying light pressure on it with your hands (See the
dimensions indicated in the figure). After having fastened the hob to the unit
(See "7.3 Fixing using brackets"), carefully trim the surplus away from edge C
beyond the seal. The dimensions given in the following drawing refer from the
hole to the inside of the seal.
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