Bosch HMVP053U, Installation Manual

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4.
Insert the two remaining self-aligning screws through
outer top cabinet holes. Turn two full turns on each
screw.
5.
Tighten center screw completely.
6.
Tighten the outer two screws completely to the top of
the microwave oven.
Note:
While tightening screws, hold the microwave
oven in place against the wall and the top cabinet.
7.
Install grease filters by sliding the two pins at the rear
side of the filter into the slots at the rear of the filter
opening, then push up filter at the front until the catch
locks in place with a click (image shows bottom view
of appliance).
Hood exhaust
When venting exhaust to the outside, hood exhaust ducts
will be required. Read the following carefully.
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 3¼" 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
3¼" 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:
Duct Pieces x Number used = Equivalent Length
Rectangular-to-Round
Transition Adaptor*
5 ft (1.5 m) x =
Wall Cap 40 ft (12.2 m) x =
Total Ductwork =