Setting the center air vents

1 Fixed center air vent

1 Fixed center air vent
2 Center air vent, right
3 Center vent thumbwheel, right
4 Center vent thumbwheel, left
5 Center air vent, left

and 4 up or down. To open/close: turn thumbwheels 3 and 4 up or down.

    See also:

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