Blomberg BOTR30100B Manuel D'installation page 8

External exhaust
4
4.1 Installing hood exhaust
Read these instructions only if you
C
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 lengths of duct pieces are based on actual tests
and reflect requirements for good venting performance
with any vent hood.
If a rectangular-to-round transition
C
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.
8 / 63 EN
Roof Cap
12 Ft. (3.6 m)
Straight Duct
(6"/15.2 cm
Round)
Rectangular-to-
Round
Transition Adap-
tor*
Over The Range Convection Microwave Oven / Installation Manual
x
Equivalent Number
Length used
24 Ft. (7.3 m) x (1)
12 Ft. (3.6 m) x (1)
5 Ft. (1.5 m) x (1)
Total Length
=
Equivalent
Length
= 24 Ft. (7.3 m)
= 12 Ft. (3.6 m)
= 5 Ft. (1.5 m)
= 41 Ft. (12.5 m)