® Microwave Hood Combination
PRODUCT MODEL NUMBERS
KHHS179L
KHMS175M
Electrical: A 120-volt, 60-Hz, AC-only, 15or 20amp. 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.
OVERALL DIMENSIONS
17-1/4"
15-7/16" 29-7/8"
CABINET OPENING DIMENSIONS
12" to 14" recommended cabinet depth
30"min. cabinetopening width.
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66" min. |
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30" min. to |
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NOTE: There must be |
from floor to |
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cooking surface |
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top of wall |
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at least one wall stud |
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(or countertop) |
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mounting |
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within cabinet |
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below microwave |
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plate. |
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opening. |
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hood. |
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VENTING REQUIREMENTS |
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wall studs |
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Roof venting |
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roof cap |
Wall venting |
Recommended vent length |
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wall cap |
Use 3-1/4" x 10" or 6" vent. The total length of the vent |
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system including straight vent, elbow, transitions, wall or |
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roof caps must not exceed the equivalent of 140 feet of |
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3-1/4" x 10" rectangular or 6" diameter round vent. For best |
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3-1/4" x 10" |
performance, use no more than three 90° elbows. To |
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calculate the length of system you need, add the equivalent |
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through-the-wall |
feet for each vent piece used in the system. See examples |
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3-1/4" x 10" |
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below. |
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through-the-roof |
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Recommended standard fittings |
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For wall or roof venting methods: |
3-1/4" x 10" vent system |
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3-1/4" x 10" |
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If the wall exhaust method is chosen, be sure that |
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90° elbow |
6 ft. |
wall cap |
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there is proper clearance within the wall for the |
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exhaust vent. |
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Wall and roof caps must have back-draft damper. |
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We recommend: |
2 ft. |
1 - 3-1/4" x 10" |
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using rigid metal vent. |
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3-1/4" x 10" |
3-1/4" x 10" |
3-1/4" x 10" |
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90° elbow |
= 25 ft. |
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that length of vent and number of elbows should |
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to 6" = 5 ft. |
roof cap = 24 ft. |
90° elbow = 25 ft. |
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1 - wall cap |
= 40 ft. |
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be kept to a minimum to provide efficient |
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8 feet straight |
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8 ft. |
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performance. |
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Length of |
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that size of vent should be uniform. |
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3-1/4" x 10" system |
= 73 ft. |
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using duct tape to seal all joints in the vent |
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6" vent system |
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system. |
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90° elbow |
3-1/4" x 10" |
45° elbow |
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3-1/4" x 10" |
using caulking compound to seal exterior wall or |
90° elbows |
6 ft. |
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= 10 ft. |
wall cap = |
= 5 ft. |
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flat elbow = |
roof opening around cap. |
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40 ft. |
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10 ft. |
two elbows should not be installed together. |
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If the existing vent is round, a rectangular- to-round adapter must be used and a rectangular 3" extension vent between the damper assembly and the adapter must be installed to prevent sticking of the exhaust damper.
We do NOT recommend: |
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1 |
- transition |
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5 ft. |
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2 ft. |
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flexible metal vent. |
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- 90° elbows |
= 20 ft. |
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1 |
- wall cap |
= 40 ft. |
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NOTE: If flexible metal vent must be used, calculate |
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8 feet straight |
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8 ft. |
each foot of flexible metal vent as two feet of rigid |
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Length of 6" system = 73 ft. |
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metal vent. Flexible metal elbows count twice as |
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much as standard elbows. |
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transition |
Because Whirlpool Corporation policy includes a continuous commitment to improve our products, we reserve the right to change materials and specifications without notice.
Dimensions are for planning purposes only. For complete details, see Installation |
Ref. 8184059 |
Instructions packed with product. Specifications subject to change without notice. |
10-22-03 |