Viega 8350.32 Instructions For Use Manual page 29

Mounting the mechanism
WC flush actuation
Push the holder for the battery compartment onto the spacer from
the left.
Push the battery compartment through the large opening into the
holder.
Push the battery compartment into the smaller opening.
The battery compartment must be clicked into place directly behind
the cover in the holder.
Hang the mechanism in the bow of the drain valve.
Handling
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