Miele DA 420V-6 Operating And Installation Instructions page 39

Installation
The cooker hood is supplied ready for
extraction mode. For recirculation mode
(UL), the directional unit from
conversion kit DUI 32 (optional
accessory, DA 420V-6 only) is installed
and the telescopic piece turned upside
down.
 Loosen the two telescopic piece
clamps from the installation frame.
 Pull the telescopic piece inside
upwards to remove.
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