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8) Before connecting the hood to the pipe,
check the plastic shutters at the outlet of the
hood. Before connecting to the pipe, turn on
the hood and make sure that the flaps move
up and allow air to escape.
9) Pull the inner duct up through the outer
duct and fasten it with a 3.5x6.5 RYSB screw to
the inner chimney stub that you screwed to
the wall earlier.
10) Attach the external air duct to the
air duct mounting bracket that is on the top
surface of the hood (2 pcs, right-left) using
3.5x6.5 RYSB bolts.