Bosch 300 Série Manuel D'installation page 15

Duct Pieces
90° Elbow
45° Elbow
90° Elbow
45° Elbow
Roof Cap
Straight Duct 6" (152 mm
Round or 3 1/4" x 10"
(82 x 254 mm) Rectangular
* If a rectangular-to-round transition adapter is used, first
make sure the damper hinge of the microwave swings
freely. If necessary, cut the damper to fit, using the tin
snips, in order to allow free movement.
Equivalent lengths of duct pieces are based on actual
tests and reflect requirements for good venting
performance with any vent hood.
x
10 ft (3 m) x
5 ft (1.5 m) x
25 ft (7.6 m) x
5 ft (1.5 m) x
24 ft (7.3 m) x
1 ft (0.3 m) x
Number used = Equivalent Length
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Total Ductwork =
15