Elica UP INOX/A/50 Prescriptions De Montage Et Mode D'emploi page 12

Ducting systems
It is possible to install an "UP" extractor hood with one or two additional optional modules in a single suction system, thus to connect
it to a single remote suction motor inside or outside the house.
A suction system, consisting of several elements, is operated by a single remote control as only a hood (UP) has all the electronic
components needed for the operation, while the remaining UP
OPTIONAL MODULE are dependent to the main UP hood.
The connections between the main hood (UP) and the remaining UP OPTIONAL MODULE must be made in the following ways:
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