Over The Range Convection Microwave Oven / Installation Manual
8 / 63 EN
4
External exhaust
4.1 Installing hood exhaust
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Read these instructions only if you
plan to vent your exhaust to the out-
side. If you plan to recirculate the air
back into the room, proceed to title 5
4.1.1 Outside top exhaust
(example only)
The following chart describes an example of one
possible ductwork installation.
Duct pieces
Equivalent
Length
x
Number
used
=
Equivalent
Length
Roof Cap
24 Ft. (7.3 m)
x
(1)
= 24 Ft. (7.3 m)
12 Ft. (3.6 m)
Straight Duct
(6”/15.2 cm
Round)
12 Ft. (3.6 m)
x
(1)
= 12 Ft. (3.6 m)
Rectangular-to-
Round
Transition Adap-
tor*
5 Ft. (1.5 m)
x
(1)
= 5 Ft. (1.5 m)
Equivalent lengths of duct pieces are based on actual tests
and reflect requirements for good venting performance
with any vent hood.
Total Length
= 41 Ft. (12.5 m)
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If a rectangular-to-round transition
adaptor is used, the bottom corners
of the damper will have to be cut to
fit, using the tin snips, in order to al-
low free movement of the damper.
