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19
Save Installation Instructions for future use.
A
A. 18
1
/
8
" (46 cm)
12
1
/
8
" (30.8 cm)
A
BC
D
A. Cabinet
B. Microwave oven
C. Wall or back of the cabinet
D. 0.5"-0.75" (1.3-1.9 cm)
VENTING DESIGN
SPECIFICATIONS
Venting Design Specifications
This section is intended for architectural designer and
builder/contractor reference only.
NOTES:
� Vent materials needed for installation are not provided with
microwave hood combination.
� We do not recommend using a flexible metal vent.
� To avoid possible product damage, be sure to vent air outside,
unless using recirculation installation. Do not vent exhaust air
into concealed spaces, such as spaces within walls or ceilings,
attics, crawl spaces or garages.
For optimal venting installation, we recommend:
� Using roof or wall caps that have backdraft dampers.
� Using a rigid metal vent.
� Using the most direct route by minimizing the length of the vent
and number of elbows to provide efficient performance.
� Using uniformly sized vents.
� Using duct tape to seal all joints in the vent system.
� Using caulking compound to seal exterior wall or roof opening
around cap.
� Not installing 2 elbows together, for optimal hood performance.
If venting through the wall, be sure that there is proper clearance
within the wall for the damper to open fully.
If venting through the roof, and rectangular-to-round transition is
used, be sure there are at least 3" (76 mm) of clearance between
the top of the microwave oven and the transition piece. See
“Rectangular-to-Round Transition” illustration.
A
B
C
D
A. Roof venting
B. Roof cap
C. Wall venting
D. Wall cap
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