Bosch HMV3022U Manual De Instalación página 14

7. Install g rease filtersby slidingthemintothesideslots,
thenpushing up andtowardovento lock(image
showsbottomviewof appliance).
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j/./-/-
Hood exhaust
When venting exhaust to the outside, hood exhaust ducts
will be required. Read the following carefully.
Duct Pieces
Note: It is important that venting be installed using the
most direct route and with as few elbows as possible.
This ensures clear venting of exhaust and helps prevent
blockages. Also, make sure dampers swing freely and
nothing is blocking the ducts.
The hood exhaust has been designed to mate with a
standard 3t/4" x 10" (82 x 254 mm) rectangular duct. If a
round duct is required, a rectangular-to-round transition
adaptor must be used. Do not use less than a 6'
(152 mm) diameter duct.
For satisfactory air movement, the total duct length of
3t/4" x 10' (82 x 254 mm) rectangular or 6' (152 mm)
diameter round should not exceed 120 equivalent feet
(36.5 m).
Elbows, transitions, wall and roof caps etc. cause
additional resistance to airflow and are equivalent to a
section of straight duct which is longer than their actual
physical size. When calculating the total duct length, add
the equivalent lengths of all transitions and adaptors plus
the length of all straight duct sections. The chart below
shows you how to calculate total equivalent ductwork
length using the approximate feet of equivalent length of
some typical ducts:
x Number used = Equivalent Length
Rectangular-to-Round Tran-
5 ft (1.5 m)
sition Adaptor*
X
Wall Cap 40 ft (12.2 m) x
90 ° Elbow 10 ft (3 m) x
45 ° Elbow 5 ft (1.5 m) x
90 ° Elbow 25 ft (7.6 m) x
Total Ductwork =
14