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Microwave Hood Combination
PRODUCT MODEL NUMBERS
MH3184XP
MH3185XP
Electrical: A 120-volt, 60 Hz, AC-only, 15 or 20
amp electrical supply located in the upper cabinet
as close as possible to the microwave oven hood.
A time-delay fuse or circuit breaker and separate
circuit is recommended.
VENTING REQUIREMENTS
Roof venting
roof cap
3-1/4" x 10"
(9.5 cm x 25.4 cm)
through-the-roof
Recommended standard fittings
3-1/4" x 10"
3-1/4" x 10"
to 6" = 5 ft.
roof cap = 24 ft.
90° elbow
3-1/4" x 10"
45° elbow
6" = 10 ft.
wall cap =
6" = 5 ft.
40 ft.
If the existing vent is round, a rectangular-
to-round adapter must be used and a
rectangular 3" (7.6 cm) extension vent
between the damper assembly and the
adapter must be installed to prevent sticking
of the exhaust damper.
Because Whirlpool Corporation policy includes a continuous commitment to improve
our products, we reserve the right to change materials and specifications without notice.
OVERALL DIMENSIONS
CABINET OPENING DIMENSIONS
NOTE: There must be
at least one 2" x 4"
(50.8 cm x 101.6 cm)
wall stud and minimum
3/8" (9.5 mm)
thickness drywall or
plaster/lathe within
cabinet opening. Must
be able to support 150
lbs. (68 kg).
Wall venting
For wall or roof venting methods:
If the wall exhaust method is chosen, be sure that
there is proper clearance within the wall for the
damper to fully open.
Wall and roof caps must have back-draft damper.
We recommend:
✔ using rigid metal vent.
✔ that length of vent and number of elbows should
be kept to a minimum to provide efficient
3-1/4" x 10"
performance.
90° elbow = 25 ft.
✔ that size of vent should be uniform.
✔ using duct tape to seal all joints in the vent
system.
✔ using caulking compound to seal exterior wall or
roof opening around cap.
✔ two elbows should not be installed together.
3-1/4" x 10"
flat elbow =
10 ft.
We do NOT recommend:
✔ flexible metal vent.
NOTE: If flexible metal vent must be used, calculate
each foot of flexible metal vent as two feet of rigid
metal vent. Flexible metal elbows count twice as
much as standard elbows.
17-1/8"
(43.5 cm)
15-3/8" (39.1 cm)
Space between cabinets must be 30" (76.2 cm)
minimum and be free of obstructions. For 36"
(91.4 cm) and 42" (106.7 cm) openings, accessory
kits are available from your dealer.
66" (167.6 cm)
minimum from
floor to top of
wall mounting
plate.
wall cap
3-1/4" x 10"
(9.5 cm x 25.4 cm)
through-the-wall
Dimensions are for planning purposes only. For complete details, see Installation
Instructions packed with product. Specifications subject to change without notice.
29-7/8"
(75.9 cm)
12" min. to 14" max. (30.5 to 35.6 cm)
cabinet depth
30" (76.2 cm) from bottom edge of upper
cabinet frame or, if frameless, from cabinet's
exterior bottom surface to cooking surface.
Recommended vent length
Use 3-1/4" x 10" (9.5 cm x 25.4 cm) rectangular or 6" (15.2 cm)
round vent. The total length of the vent system including
straight vent, elbow(s), transitions, wall or roof caps must not
exceed the equivalent of 140 feet (42.7 m) of 3-1/4" x 10"
(9.5 cm x 25.4 cm) rectangular or 6" (15.2 cm) round vent.
For best performance, use no more than three 90° elbows. To
calculate the length of system you need, add the equivalent feet
for each vent piece used in the system. See examples below.
3-1/4" x 10" (9.5 cm x 25.4 cm) vent system
3-1/4" x 10"
90° elbow
6 ft. (1.8 m)
1 - 3-1/4" x 10"
2 ft. (0.6 m)
90° elbow
1 - wall cap
8 feet straight
Length of
3-1/4" x 10" system = 73 ft. (22.2 m)
6" (15.2 cm) vent system
90° elbows
6 ft. (1.8 m)
1 - transition
2 ft. (0.6 m)
2 - 90° elbows
1 - wall cap
8 feet straight
Length of 6" system = 73 ft. (22.2 m)
transition
15-7/8"
(40.3 cm)
wall cap
= 25 ft. (7.6 m)
= 40 ft. (12.2 m)
= 8 ft. (2.4 m)
= 5 ft. (1.5 m)
= 20 ft. (6.1 m)
= 40 ft. (12.2 m)
= 8 ft. (2.4 m)
Ref. 8206327
05-30-06
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