Maytag MMV4207JK, MMV5227JZ, WMH54521JV, MMV4207JB, KMHS120ESS Installation Instructions

MICROWAVE HOOD COMBINATION

INSTALLATION INSTRUCTIONS

This product is suitable for use above electric or gas cooking products up to and including 36" (91.4 cm) wide. See the “Installation
Requirements” section for further notes.

These installation instructions cover different models. The appearance of your particular model may differ slightly from the illustration
in these installation instructions.

Table of Contents

MICROWAVE HOOD COMBINATION SAFETY ............................ 1

INSTALLATION REQUIREMENTS ................................................. 2

Tools and Parts .............................................................................2

Remove Cardboard Template ...................................................... 2

Location Requirements ................................................................2

Electrical Requirements ...............................................................3

INSTALLATION INSTRUCTIONS ................................................... 4

Remove Mounting Plate ...............................................................4

Rotate Blower Motor ....................................................................4

Locate Wall Stud(s) ......................................................................7

Mark Rear Wall .............................................................................7

Drill Holes in Rear Wall .................................................................8

Attach Mounting Plate to Wall .....................................................8

Prepare Upper Cabinet ................................................................9

Install Damper Assembly ...........................................................10

Install the Microwave Oven ........................................................10

Complete Installation .................................................................11

VENTING DESIGN SPECIFICATIONS ........................................12

ASSISTANCE ................................................................................14

Replacement Parts .....................................................................14

Accessories ................................................................................14

MICROWAVE HOOD COMBINATION SAFETY

W11401886A

INSTALLATION REQUIREMENTS

Tools and Parts

Tools Needed

Gather the required tools and parts before starting installation.
Read and follow the instructions provided with any tools listed
here.

■ Measuring tape

■ Pencil

■ Masking tape or

thumbtacks

■ Scissors

■ No. 2 Phillips screwdriver

■ No. 3 Phillips screwdriver

for 1/4 - 20 x 3" (7.6 cm)
bolts

■ Drill

■ 3/16" (5 mm), 3/8" (1 cm),

5/8" (1.6 cm) drill bits

■ 3/4" (1.9 cm) hole saw

Parts Needed

For information on reordering, see the “Replacement Parts”
section.

NOTE: The hardware items listed here are for wood studs.
For other types of wall structures, be sure to use appropriate
fasteners.

A

B

C

■ Diagonal wire cutting pliers

■ Stud nder

■ 7⁄16" (1.1 cm) socket

wrench (or box wrench) for
1/4" x 2" (6.4 mm x 5.1cm)
lag screws

1

■ 1

/2" (3.8 cm) diam. hole
drill bit for wood or metal
cabinet

■ Keyhole saw

■ Caulking gun and

weatherproof caulking
compound

■ Duct tape

DEF

H

G

Remove Cardboard Template

The cardboard piece from the top of the microwave oven
packaging is perforated. The piece inside the perforation is for
use as a rear wall template.

1. Cut along the perforation to separate the template from the
rest of the cardboard packaging.

2. Set the cardboard template to the side and refer to it during
the “Mark Rear Wall” part of installation.

Depending on your model, it may use full carton box for packing,
then skip remove cardboard template steps, but use the wall
template for "Mark Rear Wall" part of installation.

Location Requirements

Check the opening where the microwave oven will be installed.
The location must provide:

■ Minimum installation dimensions. See the “Installation

Dimensions” illustration.

■ Minimum one 2" x 4" (5.1 x 10.2 cm) wood wall stud and

minimum 3/8" (1 cm) thickness drywall or plaster/lath within
cabinet opening.

■ Support for weight of 150 lbs (68 kg) which includes

microwave oven and items placed inside the microwave
oven and upper cabinet.

■ Grounded electrical outlet inside upper cabinet. See the

“Electrical Requirements” section.

NOTES:

■ If installing the microwave oven near a left sidewall, make

sure there is at least 6" (15.2 cm) of clearance between the
wall and the microwave oven so that the door can open fully.

■ Some models have a pocket handle. If installing the

microwave near a right side wall, make sure there is at least
3 inches of clearance between wall and microwave oven so
you can grab the handle integrated inside the door.

■ Some cabinet and building materials are not designed to

withstand the heat produced by the microwave oven for
cooking. Check with your builder or cabinet supplier to make
sure that the materials used will not discolor, delaminate, or
sustain other damages.

A. 3/16 - 24 x 3" round-head

bolts (2)
B. 1/4 - 20 x 3" at-head bolts (2)
C. Washers (2)
D. 3/16" toggle nuts (2)
E. 1/4" x 2" lag screws (2)
F. #6 x 3/8" Sheet metal screws (2)
G. Power supply cord bushing (1)
H. Damper assembly (for wall or

roof venting)

Not Shown:

■ Upper cabinet template

■ Mounting plate (attached to

back of microwave oven)

■ Cardboard template (part of

packaging) or wall template

■ Aluminum grease lters

■ Charcoal lters (Depending

on model, charcoal lters may
not be included. See User
Instructions.)

NOTE: Depending on model, aluminum grease lter and
charcoal lter may be combined.

Materials Needed

■ Standard ttings for wall or roof venting. See the “Venting

Design Specications” section.

2

Special Requirements

For Wall Venting Installation Only:

■ Cutout must be free of any obstructions so that the vent t

properly and the damper blade opens freely and fully.

For Roof Venting Installation Only:

■ If you are using a rectangular-to-round transition piece, the

3" (7.6 cm) clearance needs to exist above the microwave
oven so that the damper blade can open freely and fully.
See “Rectangular to Round Transition” illustration in the
“Venting Design Specications” section.

Installation Dimensions

12" (30.5 cm) min.
14" (35.6 cm) max.

30"

(76.2 cm)

min.

AB

upper cabinet and
side cabinet depth

30"

(76.2 cm)

typical*

66" (167.6 cm) min.

*

12"

DEEPER

14"

14"

DEEPER

15"

NOTE: The grounded 3 prong outlet must be inside the upper
cabinet. See the “Electrical Requirements” section.

A. 2" x 4" (5.1 x 10.2 cm) wall stud
B. Grounded 3 prong outlet

*30" (76.2 cm) is typical for 66" (167.6 cm) installation height.
Exact dimensions may vary depending on type of range/cooktop
below.

NOTE: To ensure good performance, do not obstruct top vent
airow. If cabinets are deeper than 14" (35.6 cm) but no more
than 15" (38.1 cm), use the bump out mounting kit replacing the
I bar mounting plate fr om the wall. The bump out mounting kit
(part # W11185746) is not provided but can be purchased from
Whirlpool.

I bar mounting plate

Product Dimensions

Bump out mounting bracket

Electrical Requirements

WARNING

Electrical Shock Hazard

Plug into a grounded 3 prong outlet.

Do not remove ground prong.

Do not use an adapter.

Do not use an extension cord.

Failure to follow these instructions can result in death,
fire, or electrical shock.

Observe all governing codes and ordinances.

Required:

■ A 120 V, 60 Hz, AC only, 15 or 20 A electrical supply with a

fuse or circuit breaker

Recommended:

■ A time-delay fuse or time-delay circuit breaker

■ A separate circuit serving only this microwave oven

GROUNDING INSTRUCTIONS

For all cord connected appliances:

The microwave oven must be grounded. In the event of
an electrical short circuit, grounding reduces the risk of
electric shock by providing an escape wire for the electric
current. The microwave oven is equipped with a cord
having a grounding wire with a grounding plug. The plug
must be plugged into an outlet that is properly installed
and grounded.

WARNING: Improper use of the grounding plug can

result in a risk of electric shock. Consult a qualified
electrician or serviceman if the grounding instructions are
not completely understood, or if doubt exists as to whether
the microwave oven is properly grounded.

Do not use an extension cord. If the power supply cord is
too short, have a qualified electrician or serviceman install
an outlet near the microwave oven.

SAVE THESE INSTRUCTIONS

¹⁄₈

17

(43.5 cm)

³⁄₁₆

+/­(0.5 cm)

*Overall depth of product will vary slightly depending on door
design.

"

"

Up to

17"

(43.2 cm)

"

¹⁄₄

16

(41.3 cm)

cm)

" (76.0

⁷⁄₈

29

3

INSTALLATION INSTRUCTIONS

A

B

A

A

A

Remove Mounting Plate

Depending on your model, the mounting plate may be in the
foam packaging, or it may be attached to the back of the
microwave oven.

NOTE: To avoid possible damage to the work surface, cover the
work surface.

1. Remove any remaining contents from the microwave oven
cavity.

2. If the mounting plate is attached to the back of the
microwave oven, remove it and set it aside.

3. Tape the microwave oven door closed so that the door does
not swing open while the microwave oven is being handled.

NOTE: To avoid damage to the microwave oven, do not grip or
use the door or door handle while the microwave oven is being
handled.

Rotate Blower Motor

The microwave oven is set for recirculation installation. For wall
or roof venting, changes must be made to the venting system.

NOTE: Skip this section if you are using recirculation installation.
Keep the damper assembly in case the venting method is
changed, or the microwave oven is reinstalled in another location
where wall or roof venting may be used.

Wall Venting Installation Only

1. Remove screws attaching damper plate to back of

microwave oven, set the screws aside.

3. Remove 2 blower screws attaching blower motor to the
microwave oven, and set aside.

A. Blower screws (in recessed holes)

4. Disconnect the blower motor wire from the connector.

A

B

A. Blower motor wire
B. Connector

5. Lift blower motor out of microwave oven, and set aside.

A. Damper plate
B. Screws

2. Turn and hold the damper plate vertically as shown.

A. Damper plate

A. Blower Motor

4

6. Using diagonal wire cutting pliers, gently snip out the

A

A

B

A B

A

B

A

rectangular damper vent covers at the perforations.

10. Reattach the 2 blower screws into the recessed holes in the
back of the microwave.

A

B

A. Diagonal wire cutting pliers
B. Rectangular damper vent cover

7. Hold the blower motor wire, put the wire through the blower
motor bridge.

A
B

A. Blower motor bridge
B. Blower motor wire

8. Lower blower motor back into the microwave oven. Exhaust
ports face the back of the microwave oven.

A. Screws
B. Recessed holes

11. Check to make sure the 2 screws are secured properly in the
blower motor screw holes, so that the motor cannot move.

A. Screws
B. Blower motor screw holes

12. Return the damper plate to its original horizontal position.

A. Exhaust Port

9. Reconnect the blower motor wire into the connector.

A. Blower motor wire
B. Connector

A. Damper plate

5

13. Secure damper plate with 2 screws removed in Step 1.

A

B

A. Damper plate
B. Screws

Roof Venting Installation Only

1. Repeat Step 1 from “Wall Venting Installation Only.”

2. Repeat Step 2 from “Wall Venting Installation Only.”

3. Repeat Step 3 from “Wall Venting Installation Only.”

4. Repeat Step 4 from “Wall Venting Installation Only.”

5. Repeat Step 5 from “Wall Venting Installation Only.”

6. Using diagonal wire cutting pliers, gently snip out the

rectangular vent covers on the damper plate at the
perforations.

A

8. Reconnect the blower motor wire into the connector.

9. Reattach the 2 blower screws into the recessed holes in the

back of the microwave.

10. Check to make sure the 2 screws are secured properly in the
blower motor screw holes, so that the motor cannot move.

11. Return the damper plate to its original horizontal position.

A

A. Damper plate

12. Secure damper plate with 2 screws removed in Step 1.

A

B

A. Rectangular vent covers
B. Diagonal wire cutting pliers

7. Lower blower motor back into microwave oven. Exhaust
ports face the top of microwave oven.

A

A. Exhaust port

IMPORTANT: If blower motor is not positioned with at
side facing the back of the microwave oven (as shown),
performance will be poor.

B

A. Damper plate
B. Screws

6

Locate Wall Stud(s)

Figure 1

C

C

D

E
F

Figure 3

D

C

E

Figure 2

B

C

E
F

Figure 4

A,D

D

A

A

NOTE: If no wall studs exist within the cabinet opening, do not
install the microwave oven.

See illustrations in “Possible Wall Stud Congurations.”

Possible Wall Stud Congurations

These depictions show examples of preferred installation congurations with the mounting plate.

1. Using a stud nder, locate the edges of the wall stud(s) within
the opening.

2. Mark the center of each stud, and draw a plumb line down
each stud center. See illustrations in “Possible Wall Stud
Congurations.”

No Wall Studs at End Holes

No Wall Studs at End Holes

B

D

A

A

A

A

E

E

NOTE: If wall stud is within 6" (15.2 cm) of the vertical centerline
(see the “Mark Rear Wall” section), only recirculation or roof
venting installation can be done.

Wall Stud at End Hole

B

A

F

D

A,

E

C

B

E

C
F

Wall Studs at End Holes

A,

E

C

A. End holes (on mounting plate)
B. Cabinet opening vertical

centerline

C. Wall stud centerlines

Mark Rear Wall

The microwave oven must be installed on a minimum of 1 wall
stud, preferably 2, using a minimum of 1 lag screw, preferably 2.

1. Using measuring tape, nd and clearly mark the vertical
centerline of the opening.

A. Centerline

2. Align the center markers on the cardboard template (carton
top cap) or Wall template, to the centerline on the wall,
making sure it is level, and that the top of the cardboard
template or wall template is butted up against the bottom
edge of the upper cabinet.

D. Holes for lag screws
E. Support tabs
F. Mounting plate center markers

NOTES:

■ If the front edge of the upper cabinet is lower than the back

edge, lower the cardboard template or wall template so that
its top is level with the front edge of the cabinet.

■ If the cardboard template or wall template is damaged or

unusable, measure and mark the wall with the dimensions
described in Step 4.

D

C

B

A. Rear wall
B. Cardboard template or Wall template
C. Top of cardboard template or wall template

must align with front edge of cabinet.

D. Front edge of upper cabinet

7

3. Holding the cardboard template or wall template in place,

Mounting plate end hole

Upper cabinet bottom

C

A

mark both holes in the lower corners and draw a horizontal
line across the bottom edge of the cardboard template or
wall template. These represent the mounting plate’s end
holes and bottom edge.

4. Remove the cardboard template or wall template and check
the markings:

15⁵⁄₈"

(39.71 cm)

14¹⁄₈"

(35.96 cm)

■ The bottom edge line must be 17

Centerline

14¹⁄₈"

(35.96 cm)

Bottom of mounting plate

5

⁄16" (44.02 cm) from the

17⁵⁄₁₆"
(44.02 cm)

bottom of the upper cabinet and must be level.

■ The end holes must be 15

5

⁄8" ( 39.71 cm) from the bottom
edge of the upper cabinet and must be on a level line with
each other. They must each be 141⁄8" (35.96 cm) from the
centerline.

5. With the support tabs facing forward (see illustrations in
the “Locate Wall Stud(s)” section), align the mounting plate
center markers to the centerline on the wall, making sure its
bottom edge is aligned to the horizontal line drawn in Step 3
and that the end holes are properly marked. Make sure the
mounting plate is level.

6. Holding the mounting plate in place, find the wall stud
centerline(s) drawn in Step 2 of “Locate Wall Stud(s)” and
mark at least 1, preferably 2 hole(s) through the mounting
plate, closest to the wall stud centerline(s). See figures 1,
2, and/or 3 in “Possible Wall Stud Congurations” in the
“Locate Wall Stud(s)” section. The blackened holes in the
shaded areas are ideal hole locations.

7. Set the mounting plate aside.

Wall Venting Installation Only

Upper cabinet bottom

³⁄₈" (1 cm)

Drill Holes in Rear Wall

In addition to being installed on at least 1 wall stud, the
mounting plate must attach to the wall at both end holes. If the
end holes are not over wall studs, use two 3/16-24 x 3"
round head bolts with toggle nuts; if 1 end hole is over a wall
stud, use 1 lag screw and one 3/16-24 x 3" round-head bolt with
toggle nut; or if both end holes are over wall studs, use 2 lag
screws. Following are 3 installation congurations.

Installation for No Wall Studs at End Holes
(Figures 1 and 2)

1. Drill 5/8" (1.6 cm) holes through the wall at both end holes

marked in Step 3 of the “Mark Rear Wall.”

2. Drill 3/16" (5 mm) hole(s) into the wall stud(s) at the hole(s)
marked in Step 6 of the “Mark Rear Wall.” Refer to gures 1
and 2 in “Possible Wall Stud Congurations” in the“Locate
Wall Stud(s)” section.

Installation for Wall Stud at One End Hole (Figure 3)

1. Drill a 3/16" (5 mm) hole into the wall stud at the end hole

marked in Step 3 of the “Mark Rear Wall.”

2. If installing on a second wall stud, drill a 3/16" (5 mm) hole
into the wall stud at the other hole marked in Step 6 of
the“Mark Rear Wall.” Refer to Figure 3 in “Possible Wall Stud
Congurations” in the “Locate all Stud(s)” section.

3. Drill a 5/8" (1.6 cm) hole through the wall at the other end
hole.

Installation for Wall Studs at Both End Holes
(Figure 4)

1. Drill 3/16" (5 mm) holes into the studs at the end holes

marked in Step 3 of the “Mark Rear Wall.”

Attach Mounting Plate to Wall

NOTE: Secure the mounting plate to the wall at both end holes
drilled into the wall studs and/or drywall using either 3/16-24 x
3" round-head bolts and toggle nuts or 1/4 x 2" lag screws.

Refer to illustrations in “Possible Wall Stud Congurations” in the
“Locate Wall Stud(s)” section.

No Wall Studs at End Holes (Figures 1 and 2)

8. Mark the centerline 3/8" (1 cm) down from the bottom edge

of the upper cabinet.

9. Using measuring tape, measure out 6" (15.2 cm) on both
sides of the centerline, and mark.

10. Measure down 4" (10.2 cm) from the mark made in Step 8
and mark.

11. Using a straightedge, draw the 2 horizontal, level lines
through the marks made in steps 8 and 10.

12. Draw the 2 vertical plumb lines down from the marks made
in Step 9 to complete the 12" x 4" (30.5 x 10.2 cm) rectangle.
This is the venting cutout area.

13. Cut a 3/4" (1.9 cm) hole in one corner of the cutout area.

14. Using a keyhole saw, cut out the venting cutout area.

8

4" (10.2 cm)

6" (15.2 cm)6" (15.2 cm)

Centerline

NOTE: The mounting plate must be secured to the wall on at
least 1 wall stud as well as at both ends.

1. With the support tabs of the mounting plate facing forward,
insert 3/16-24 x 3" round-head bolts through both end holes
of mounting plate.

2. Start toggle nuts on bolts from the back of the mounting
plate. Leave enough space for the toggle nuts to go through
the wall and to open.

B

A. 3/16-24 x 3" round-head bolt
B. Mounting plate
C. Spring toggle nut

3. Position mounting plate on the wall.

4. Push the 2 bolts with toggle nuts through the drywall, and

A

B

A

B

nger tighten the bolts to make sure toggle nuts have
opened against drywall.

C

D

A. 3/16-24 x 3" round-head bolt
B. Mounting plate
C. Spring toggle nut
D. Drywall

5. Insert lag screw(s) into the hole(s) drilled into wall stud(s) in
Step 2 of “Installation for No Wall Studs at End Holes” in the
“Drill Holes in Rear Wall” section.

6. Check alignment of mounting plate, making sure it is level.

7. Securely tighten all lag screws and bolts.

Wall Stud at One End Hole (Figure 3)

1. With the support tabs of the mounting plate facing forward,

insert a 3/16-24 x 3" round-head bolt through the end
hole that ts over the 5/8" (16 mm) hole drilled in Step 3 of
“Installation for Wall Stud at One End Hole” in the “Drill Holes
in Rear Wall” section.

2. Start a toggle nut on the bolt from the back of the mounting
plate. Leave enough space for the toggle nut to go through
the wall and to open.

3. Position mounting plate on the wall.

4. Push the bolt with toggle nut through the drywall, and nger

tighten the bolt to make sure toggle nut has opened against
drywall.

5. Insert a lag screw into the remaining end hole.

6. If installing on a second wall stud, insert a lag screw into the

other hole drilled in Step 2 of “Installation for Wall Stud at
One End Hole” in the “Drill Holes in Rear Wall” section.

7. Check alignment of mounting plate, making sure it is level.

8. Securely tighten the lag screw(s) and bolt.

Prepare Upper Cabinet

1. Disconnect power to outlet.

2. Remove all contents from upper cabinet.

3. Place Upper Cabinet Template against the bottom of the

upper cabinet, and attach with tape or thumbtacks. Make
sure the template centerline aligns with the vertical centerline
on the rear wall.

The “rear wall” arrows must be against the rear wall so that
the holes cut into the upper cabinet align with the holes in
the top of the microwave oven.

NOTES:

■ If the upper cabinet has a frame around it, trim the template

edges so that it ts inside the frame, against the upper
cabinet bottom. The template has trim lines to use as guides.

■ If the wall behind the microwave oven (as installed) has a

partial wall covering (for example, tile backsplash), be sure
the “Rear Wall” arrows align to the thickest part of t he rear
wall (for example, the thickness of the tiles rather than the
drywall).

4. Make sure the 10" (25.4 cm) dimension from the rear wall to
points “D” and “E” on the template is maintained.

c

r

-

e

p

U

p

D

10"

(25.4 cm)

F

5. Cut the 11⁄2" (3.8 cm) diameter hole at the circular shaded
area “G” on the template. This hole is for the power supply
cord.

NOTE: If upper cabinet is metal, the supply cord bushing needs
to be installed around the supply cord hole as shown.

p

b

inet

a

t

e

m

l

t

e

a

E

10"

G

(25.4 cm)

Wall Studs at Both End Holes (Figure 4)

1. Position mounting plate on the wall.

2. Insert lag screws into both end holes.

3. Check alignment of mounting plate, making sure it is level.

4. Securely tighten the lag screws.

A. Metal cabinet
B. Power supply cord bushing

6. Drill 3/8" (10 mm) holes at points “D” and “E” on the
template. These are for two 1/4-20 x 3" bolts and washers
used to secure the microwave oven to the upper cabinet.

For Roof Venting Installation Only:

7. Cut 3/4" (1.9 cm) hole at one corner of the shaded

rectangular area “F” on Upper Cabinet Template.

8. Using a keyhole saw, cut out the rectangular area.

9

Install Damper Assembly

A

AB CD

(for wall venting only)

1. Check that damper blade moves freely and opens fully.

2. Position the damper assembly on the back of the microwave

oven so that the damper blade hinge is at the top, and the
damper blade opens away from the microwave oven.

A. Back of microwave oven
B. Damper assembly
C. Damper blade
D. #6 x 3/8" Sheet metal screws

3. Secure damper assembly with 2 #6 x 3/8" sheet metal
screws.

Install the Microwave Oven

WARNING

3. Make sure the microwave oven door is closed and taped
shut.

4. Using 2 or more people, lift microwave oven and hang it on
support tabs at the bottom of mounting plate.

NOTE: To avoid damage to the microwave oven, do not grip or
use the door or door handle while the microwave oven is being
handled.

B

A. Mounting plate
B. Support tabs

5. With front of microwave oven still tilted, thread power supply
cord through the power supply cord hole in the bottom of the
upper cabinet.

Excessive Weight Hazard

Use two or more people to move and install
microwave oven.

Failure to do so can result in back or other injury.

IMPORTANT: The control side of the microwave oven is the
heavy side. Handle the microwave oven gently.

1. Remove the 2 packing spacers from the top of the vent grille
before using the microwave oven.

A

A. Packing spacers (2)

NOTE: Depending on your model, it may not have packing
spacers. If it does not have packing spaces, install your
microwave oven start from Step 2.

2. Place a washer on each 1/4-20 x 3" at-head bolt and place
inside upper cabinet near the 3/8" (10 mm) holes.

6. Rotate microwave oven up toward upper cabinet.
NOTE: If venting through the wall, make sure the damper

assembly ts easily into the vent in the wall cutout.

7. Push microwave oven against mounting plate and hold in
place.

NOTE: If microwave oven does not need to be adjusted, skip
steps 7 through 9.

8. If adjustment is required, rotate microwave oven downward.
Using 2 or more people, lift microwave oven off of mounting
plate, and set aside on a covered surface.

9. Loosen mounting plate screws. Adjust mounting plate and
retighten screws.

10. Repeat steps 3 through 6.

11. With the microwave oven centered, and with at least one

person holding it in place, insert bolts through upper cabinet
into microwave oven. Tighten bolts until there is no gap
between upper cabinet and microwave oven.

NOTES:

■ Some upper cabinets may require bolts longer or shorter

than 3" (7.6 cm). Longer or shorter bolts are available at
most hardware stores.

10

■ Overtightening bolts may warp the top of the microwave

AB C

DE F

AB

A

oven. To avoid warping, wood ller blocks (installer to
provide) may be added. The blocks must be the same
thickness as the space between the upper cabinet
bottom and the microwave oven.

A. Bolts

2. Connect vent to damper assembly.

A. Vent
B. Damper assembly (under vent)

NOTE: Avoid damage to the mounting nut, screw the bolts into
the mounting nut holes around 15-20 mm by hand rst, make
sure the bolts thread in properly. Then tighten with tools.

A. Bolt
B. Mounting Nut

For Roof Venting Installation Only

1. Insert damper assembly through the cabinet cutout so that

the long tab of the damper assembly slides under the raised
tabs of the damper plate. Then secure with #6 x 3/8" sheet
metal screw.

NOTE: The screw cannot be installed if the damper assembly is
not positioned as shown.

A. Raised tabs
B. Damper assembly
C. #6 x 3/8" Sheet metal screw
D. Upper cabinet cutout
E. Long tab
F. Damper plate

Complete Installation

1. Install lters. Refer to the User Instructions for lter
placement.

WARNING

A

B

15-20 mm

Electrical Shock Hazard

Plug into a grounded 3 prong outlet.

Do not remove ground prong.

Do not use an adapter.

Do not use an extension cord.

Failure to follow these instructions can result in death,
fire, or electrical shock.

2. Plug microwave oven into grounded 3 prong outlet.

3. Reconnect power.

4. Check the operation of microwave oven by placing 1 cup

(250mL) of water on the turntable and programming a cook
time of 1 minute at 100% power. Test vent fan and exhaust
by operating the vent fan.

5. If the microwave oven does not operate:

■ Check that a household fuse has not blown, or that a

circuit breaker has not tripped. Replace the fuse or reset
the circuit breaker. If the problem continues, call an
electrician.

■ Check that the power supply cord is plugged into a

grounded 3 prong outlet.

■ See the User Instructions for troubleshooting information.

The installation is now complete.
Save Installation Instructions for future use.

11

VENTING DESIGN SPECIFICATIONS

A

B
C

E

F

D

3" (7.6 cm)

AB C

DE FG

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 exible 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 efcient
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" (7.6 cm) of clearance between
the top of the microwave oven and the transition piece. See
“Rectangular-to-Round Transition” illustration.

Rectangular-to-Round Transition

NOTE: The minimum 3" (7.6 cm) clearance must exist between

the top of the microwave oven and the rectangular-to-round
transition piece so that the damper can open freely and fully.

A. Roof cap
B. 6" (15.2 cm) min. diameter round vent
C. Elbow (for wall venting only)
D. Wall cap
E. 31⁄4" x 10" to 6" (8.3 x 25.4 cm to 15.2cm)

rectangular-to-round transition piece

F. Vent extension piece, at least 3" (7.6 cm) high

Recommended Standard Fittings

The following length equivalents are for use when guring vent
length. See the examples in “Recommended Vent Length.”

Roof venting

Roof cap

Wall venting

Wall cap

12

A. Rectangular-to-round transition piece: 31⁄4" x 10" to 6" = 5ft

(8.3 x 25.4 cm to 15.2 cm = 1.5 m)
B. Roof cap: 31⁄4" x 10" = 24 ft (8.3 x 25.4 cm = 7.3 m)
C. 90° elbow: 31⁄4" x 10" = 25 ft (8.3 x 25.4 cm = 7.6 m)
D. 90° elbow: 6" = 10 ft (15.2 cm = 3 m)
E. Wall cap: 31⁄4" x 10" = 40 ft (8.3 x 25.4 cm = 12.2 m)
F. 45° elbow: 6" = 5 ft (15.2 cm = 1.5 m)
G. 90° at elbow: 31⁄4" x 10" = 10 ft (8.3 x 25.4 cm = 3 m)

Recommended Vent Length

A B

C

6 ft (1.8 m)

2 ft

(0.6 m)

A B

C D

6 ft (1.8 m)

2 ft

(0.6 m)

A 31⁄4" x 10" (8.3 x 25.4 cm) rectangular or 6" (15.2 cm) round
vent should be used.

The total length of the vent system including straight vent,
elbow(s), transitions and wall or roof caps must not exceed
the equivalent of 140 ft (42.7 m) for either type of vent. See
the “Recommended Standard Fittings” section for equivalent
lengths.

For best performance, use no more than three 90° elbows.

To calculate the length of the system you need, add the
equivalent lengths of each vent piece used in the system.
See the following examples:

31⁄4" x 10" (8.3 x 25.4 cm) vent system = 73 ft (22.2 m)
total

A. One 3
B. 1 wall cap = 40 ft (12.2 m)
C. 2 ft (0.6 m) + 6 ft (1.8 m) straight = 8 ft (2.4 m)

1

⁄4" x 10" (8.3 x 25.4 cm) 90° elbow = 25 ft (7.6 m)

6" (15.2 cm) vent system = 73 ft (22.2 m) total

A. Two 90° elbows = 20 ft (6.1 m)
B. 1 wall cap = 40 ft (12.2 m)
C. 1 rectangular-to-round transition piece = 5 ft (1.5 m)
D. 2 ft (0.6 m) + 6 ft (1.8 m) straight = 8 ft (2.4 m)

If the existing vent is round, a rectangular to round transition
piece must be used. In addition, a rectangular 3" (7.6 cm)
extension vent between the damper assembly and rectangular to
round transition piece must be installed to keep the damper from
sticking.

13

ASSISTANCE

A

Call your authorized dealer or service center. When you call, you
will need the microwave oven model number and serial number.
Both numbers can be found on the model and serial number
plate, which is located behind the microwave oven door on the
front frame of the microwave oven.

If you need additional assistance, call us at our toll-free number
or visit our website listed in the User Guide.

Replacement Parts

If any of the installation hardware needs to be replaced, call us at
our toll-free number listed in the User Guide.

Following is a list of available replacement parts. You will need
your model and serial numbers located on the front facing of the
microwave oven opening, behind the door.

■ Damper Assembly

■ Mounting Plate

■ Upper Cabinet Template

■ Mounting Screw Kit (includes parts A-G in “Parts

Supplied” in the “Tools and Parts” section)

Accessories

Filler Panel Kits are available from your dealer to use when
installing this microwave oven in a 36" (91.4 cm) or
42"(106.7cm) wide opening. The ller panels come in pairs.
Each panel is 3" (7.6 cm) wide.

A. Filler panels

Filler Panel Kits: 8171336 White

8171337 Black

8171338 Biscuit

8171339 Stainless Steel

99403 Almond

See your authorized dealer or service center for details.

14

Notes

15

W11401886A
SP PN W11401911

©2019 All rights reserved.

11/19