Bosch HMV8050 User Manual
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Over-the-Range Microwave
Installation Instructions
For Models: HMV8050
PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING
IMPORTANT: Save these instructions for the local electrical inspector’s use.
INSTALLER: Please leave these Installation Instructions with this unit for the owner.
OWNER: Please retain these instructions for future reference.
Printed in Korea
P/No.: MFL06206602
Household Appliances
YOUR SAFETY FIRST
BEFORE YOU START
• Proper installation is the installer's responsibility!
– Read the entire manual before you begin. The Model number label is located on the oven front.
See Figure 1. Mounting plate is located on back side of microwave oven. See Figure 2.
BE SURE TO READ THE FOLLOWING SAFETY INSTRUCTIONS:
Model Number Plate
Figure 1 Figure 2
Mounting Plate
WARNING
For Your Safety
• You will need TWO people to install this oven. It is heavy and could cause personal injury if not handled
properly.
•
Avoid Electrical Shock!
– Before you drill into the wall, note where electrical outlets are and where electrical wires might be behind
concealed in the wall, YOU COULD GET AN ELECTRIC SHOCK if you contact electrical wires with your
drill bit.
– Locate and disconnect the power of any electrical circuits that could be affected by installing this oven.
IF YOU DO NOT DISCONNECT THE POWER, YOU COULD GET AN ELECTRIC SHOCK.
• ELECTRICAL RATING OF THIS OVEN : 120V AC. 60Hz.
– You need a 120V, 60Hz, AC only, 15A or 20A, fused electrical supply (located in the cabinet above the
microwave as close as possible to the microwave circuit) serving only the microwave.
– 2 –
YOUR SAFETY FIRST
• THIS APPLIANCE MUST BE GROUNDED!
– If there is an electrical short circuit, grounding reduces the risk of electrical shock by providing an escape
wire for the electric current. This appliance is equipped with a cord having a grounding wire with a grounding
plug.
• Place the plug into a properly installed and grounded outlet. See Figure 3.
• Do not use an extension cord.
• Keep the power cord dry and do not pinch or crush it.
• DO NOT, UNDER ANY CIRCUMSTANCES, REMOVE THE
POWER SUPPLY CORD GROUNDING PRONG!
This appliance MUST be grounded!
WARNING
If you use the grounding plug improperly, you risk electric shock and or fire!
Check with a qualified electrician if you are not sure whether the oven is properly grounded or if you do not
completely understand the grounding instructions.
DO NOT USE A FUSE IN THE NEUTRAL OR GROUNDING CIRCUIT.
PROPERLY POLARIZED AND
GROUNDED OUTLET
Three-Pronged (Grounding) Plug
Figure 3
WARNING
Improper grounding could result in electric shock, fire or other personal injury.
SAVE THESE INSTRUCTIONS FOR THE LOCAL ELECTRICAL INSPECTOR'S USE.
• DO NOT EXPOSE YOURSELF TO EXCESSIVE MICROWAVE ENERGY!
– DO NOT try to operate the microwave oven with the door open.
– DO NOT tamper with or defeat the safety interlocks.
– DO NOT place objects between the microwave oven front face and the door.
– DO NOT allow soil or cleaner residue to build up on the flat surfaces around the microwave oven door.
– DO NOT operate the microwave oven if it is damaged.
– The microwave oven door must close properly to operate safely.
– DO NOT USE THE MICROWAVE OVEN:
• If the door is bent.
• If the hinges or latches are broken or loose.
• If the door seals, sealing surfaces or glass is broken.
– DO NOT ATTEMPT TO ADJUST OR REPAIR THE OVEN YOURSELF!
It should be adjusted and repaired by a qualified technician who can check for microwave leakage after
repairing the oven.
WARNING
If you do not use the microwave oven as instructed,
you could be exposed to excessive microwave energy.
– 3 –
YOUR SAFETY FIRST
30" min. cabinet opening width
30" min. clearance from bottom
of cabinet to cooking surface
or countertop before installation.
Grounded Outlet
(inside upper cabinet)
Power Supply Cord Hole
(Use templates included
with installation instructions)
• MAKE SURE YOU HAVE ENOUGH SPACE AND SUPPORT.
– Mount the oven against a flat, vertical wall, so that it is supported by the wall. The wall should be
constructed of minimum 2" x 4" wood studding and 3/8" thick drywall or plaster/lath.
– ATTACH AT LEAST ONE of the two lag screws supporting the oven to a vertical, 2" x 4" wall stud.
– DO NOT mount the microwave oven to an island or peninsula cabinet.
– BE SURE the upper cabinet and rear wall structures are able to support 150 lbs., plus the weight of any
items you place inside the oven or upper cabinet.
– Locate the oven away from strong draft areas, such as windows, doors, and strong heating vents.
– BE SURE you have enough space. See Figure 4 below for minimum vertical and horizontal clearance.
WARNING
If you do not mount the oven as instructed,
you risk personal injury and/or property damage.
Figure 4
CAUTION
• Before you begin installing the oven, PLACE A PIECE OF THE CARTON OR OTHER HEAVY
MATERIAL (a blanket) over the countertop or cooktop to protect it. Do not use a plastic cover.
Failure to protect these surfaces could result in property damage.
– 4 –
PARTS, TOOLS, MATERIALS
THE FOLLOWING PARTS ARE SUPPLIED WITH THE OVEN:
NOTE: Depending on your ventilation requirements, you may not use all of these parts.
Damper/duct connector
(for roof venting or wall venting installation)
Not Actual Size (2 pieces must be assembled as
shown)
One power cord clamp bushing - Actual Size (for the cord hole in a metal upper cabinet)
Four 1/4" x 2" lag screws - Actual Size
(for wall stud holes)
Two 1/4" x 3" bolts - Actual Size
(for securing to the upper cabinet)
One power cord clamp and
One dark-colored mounting screw
(to hold the power cord)
Actual Size
Four 1/4" x 3" toggle bolts - Actual Size
(for drywall holes)
Two tapping screws - Actual Size
(for attaching the damper duct connector)
One upper cabinet template- Not Actual Size
Four spring toggle heads - Actual Size
(for the toggle bolts)
One rear wall template- Not Actual Size
(3 pieces mounting plate only)
NOTE: You need to install at least two lag screws into a 2" x 4" stud and four anchor bolts into the wall.
and the mounting area must meet the 150 lbs. weight requirement.
– 5 –
PARTS, TOOLS, MATERIALS
You will need the following tools and materials for the installation:
Carton or other heavy material for covering the counter top.
(for taping the templates to the wall)
Clear Tape
Saber Saw
(for cutting vent holes for roof
or wall vending)
Phillips Screwdriver
(for the screws)
Pencil
Flat Blade Screwdriver
(for the toggle bolts)
Stud Finder or Thin Nail
Keyhole Saw (for the power cord hole)
Electric Drill
3/8" and 3/4" wood drill bits
1/2" and 3/16"
drill bits
Plumb Line
Measuring Tape
(metal preferred)
Small Side Cutters or Tin Snips
Gloves
●
If you have brick or masonry walls, you will need special hardware and tools.
●
The ductwork you need for the installation is not included. All wall and roof caps must have a back-draft damper.
(Shown on page 5).
– 6 –
Duct Tape
Caulking Gun
STEP 1: PREPARE THE ELECTRICAL
CONNECTIONS
WARNING
AVOID ELECTRICAL SHOCK! THIS APPLIANCE MUST BE GROUNDED!
1. Locate the grounded electric outlet for this oven in the
cabinet above the oven, as shown in Figure 5.
NOTE: The outlet should be on a circuit dedicated to the
microwave oven (120V, 60 Hz., AC only) with a 15 or 20A
fused electrical supply.
IMPORTANT: If you do not have the proper wall outlet,
you MUST have one installed by a qualified electrician.
2. You will cut the power-supply-cord hole (shown in Figure 5)
later when you prepare the wall and upper cabinet in Step 4.
Upper
Cabinet
Grounded Outlet
(Inside Cabinet)
NOTE: Do not use an extension cord.
Keep the power cord dry and do not pinch or crush it.
Power-Supply-Cord Hole
Figure 5
WARNING
Improper grounding could result in electric shock or other personal injury.
DO NOT, UNDER ANY CIRCUMSTANCES, REMOVE THE POWER SUPPLY CORD
GROUNDING PRONG!
This appliance MUST be grounded!
– 7 –
STEP 2: PREPARE THE VENTING SYSTEM
cabinet
oven
NOTE: The ductwork you need for outside ventilation is not included with your oven. The standard ductwork
fittings and length are shown in Figure 10, page 9.
WARNING
THIS OVEN MUST BE PROPERLY VENTED!
You may vent your oven in one of three ways. However, do NOT vent into a wall cavity, an attic, or an unused
area.
Roof-venting If your oven is located on an outside wall near the roof, as in Figures 7 (3 1/4" x 10" duct) and
Wall-venting If your oven is located on an outside wall of your house, as in Figure 6 (3 1/4" x 10" duct) and
Room-venting If your oven is located on an inside wall of your house, as in Figure 8.
NOTE: If you choose the rear exhaust method (roof-or wall-venting), be sure there is enough clearance within the
wall for the exhaust duct.
cabinet
Figure 9 (6" round duct.)
Figure 9 (6" round duct.)
Wall Venting
Roof Venting
roof cap
cabinet
wall cap
oven
Wall venting
3 1/4"x10"
duct
through-the-wall
Figure 6
REMEMBER AS YOU INSTALL THE
VENTING:
Keep the length of the ductwork and the
numberof elbows to a minimum to ventilate
your oven efficiently. See examples on page 9.
Keep the size of the ductwork the same.
Do not install two elbows together.
Use duct tape to seal all joints in the duct
system.
Use caulking to seal the exterior wall or roof
opening around the cap.
3 1/4"x10"
duct
oven
Roof venting
through-the-roof
Figure 7
Room Venting
roof cap
6"min diameter
round duct
elbow
3 1/4" to round
duct transition
ductwork transition
Figure 8 Figure 9
wall cap
3 1/4" to round
– 8 –
STEP 2: PREPARE THE VENTING SYSTEM
Standard Fittings
NOTE: If the existing duct is round, you must use a rectangular-to-round adapter, with a rectangular 3" extension
duct installed between the damper assembly and the adapter to prevent the exhaust damper’s sticking.
Duct Length
The total length of the duct system, including straight duct, elbows, transitions, and wall or roof caps must not
exceed the equivalent of 140 feet.
For best performance, do not use more than three 90 degree elbows, and keep length as short as possible.
Below are the standard fittings and their equivalent length in feet.
1 2 3
3 1/4” x 10”
to 6"=5ft.
4 5 6 7
90˚elbow
=10ft.
3 1/4” x 10” roof
3 1/4” x 10”
wall cap
=40ft.
cap=24ft.
45˚elbow
=5ft.
3 1/4” x 10” 90˚
elbow=25ft.
3 1/4” x 10”
flat elbow
=10ft.
Figure 10
To calculate the equivalent length of each duct piece used, see the examples below.
Examples
For 3 1/4"x10" SYSTEMS
6ft.
2ft.
wall cap
For 6"ROUND SYSTEMS
6ft.
transition
2ft.
wall cap
1-3 1/4” x 10” 90° elbow = 25 ft.
1-Wall Cap = 40 ft.
8 feet straight duct = 8 ft.
TOTAL LENGTH = 73 ft.
1-transition = 5 ft.
2-90° elbows = 20 ft.
1-Wall Cap = 40 ft.
8 feet straight = 8 ft.
TOTAL LENGTH = 73 ft.
– 9 –
STEP 3: PREPARE THE VENTING BLOWER
WARNING
●
To avoid risk of property damage, unplug the microwave oven or disconnect power at
source by removing fuse or throwing circuit breaker.
●
To avoid risk of personal injury, wear protective gloves when handling mounting plate.
DO NOT PULL OR STRETCH THE BLOWER WIRING! Pulling and stretching the blower wiring could result in
electrical shock.
●
Your microwave oven is shipped with the blower assembled for room venting. If you want wall-venting
or roof-vented installation, you must change the blower, as detailed below.
A thick, protective
Before You Start
1. Remove any shipping materials and parts from inside the
microwave oven.
2. Cover the counter top or cooktop with a thick, protective
covering to protect it from damage and dirt. See Figure 11.
NOTE: If you have a free-standing range, disconnect it, move it
onto a piece of cardboard or hardboard and pull it away
from the wall, so that you can get closer to the upper
cabinet and back wall for easier measuring and drilling.
Figure 11
covering
Remove The Mounting Plate:
1. Remove mounting plate screw(s) (1 or 2 screws) from the
mounting plate as shown and discard. See Figure 12.
2. This plate will be used as the rear mounting plate. (It will be
used to locate and mark the mounting holes on the rear wall.)
3. Locate exhaust adapter, grease filters and hardware packet.
4. At this point, remove any adhesive tape (if there is any), on the
exhaust adapter, the grease filters and the power supply cord.
Room-Vented (recirculating) Installation:
This oven is shipped assembled for room-vented.
Go to step 4 on page 12.
Wall-Vented Installation:
1. Remove one blower unit mounting screw and one or two
blower plate screw(s). Remove the blower plate from cabinet.
See Figure 13.
2. Carefully lift the blower unit out of the microwave oven.
3. Use side cutters or thin snips to cut and remove knockouts “B”
from Back plate. Discard knockouts. Be careful not to distort
the plate. See Figure 14.
Blower Unit
Control Panel Side
Parts “B”
Parts “B”
Mounting plate
Mounting plate
screw(s)
(1 or 2 screws)
Figure 12
Blower Plate
Mounting Screw (option)
Figure 13
Knockouts Parts “B”
Blower Plate
Back Plate
Blower Unit
Mounting Screw (option)
– 10 –
Figure 14
STEP 3: PREPARE THE VENTING BLOWER
4. Reassemble the blower wire. See Figure 15.
5. Rotate the unit so that the exhaust ports face the rear of the cabinet. See Figure 17. When you insert blower unit,
blower wire must be like figure 16.
6. Place blower unit back into cabinet. Check that the exhaust ports face towards the rear of the cabinet. See Figure
17.
7. Reattach the blower plate to cabinet so the exhaust ports and blower plate opening are aligned. Attach with one
blower unit mounting screw and then one blower plate mounting screw. See Figure 18.
blower
unit
exhaust
Figure 15
Roof-Vented Installation:
ports
Figure 16
exhaust
ports
blower plate
mounting screw (option)
Figure 17
1. Remove one blower unit mounting screw and one or two
blower plate screw(s). Remove the blower plate from cabinet.
See Figure 19.
2. Use side cutter or thin snips to cut and remove knockouts "A"
from Blower plate. Discard knockouts. Be careful not to distort
the plate. See Figure 20.
3. Carefully lift the blower unit out of the microwave oven.
4. Rotate blower unit 90° so the exhaust ports face the top of
the cabinet. See Figure 21.
5. Reassemble the blower wire.
6. Place blower unit back into microwave oven.
7. Reattach blower plate to microwave oven. Attach with the one
blower unit mounting screw and then the one or two blower
plate mounting screw(s). See Figure 22.
8. Attach the exhaust adapter to the blower plate by sliding it into
the Guide. See Figure 23.
blower unit
blower unit
blower unit
exhaust ports
blower unit
parts “B”
blower plate
blower plate
mounting screw (option)
Figure 18
Figure 19
Knockouts “A”
Figure 20
blower plate
back plate
blower unit
mounting screw (option)
blower plate
mounting screw (option)
blower plate
back plate
blower unit
mounting screw (option)
Exhaust
adapter
blower
unit
blower plate
blower unit
mounting screw
(option)
Figure 21 Figure 22 Figure 23
– 11 –
Back
of oven
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