CIARRA CBCB6736F Mode D'emploi page 18

Installation
17) Use two 4*8mm Screws to assemble the Upper Chimney on the
Upper Chimney Bracket.
EN
18) Turn the LED lights on/off, and test whether the functions are working
properly.
COMPONENTS:
Part 3: 4*8mm Screws X 2
4*8mm Screws
16