Bosch HB5651UC, HBL5451UC, HBL8651UC, HBL8661UC, HBN8451UC Installation Manual

Built-In Ovens

500/800 Series

HBL53, HBL54, HBL55, HBL56, HBN54,

HBN 56, HBN57, HBL84, HBN84, HBL86,

HBN86, HBL87

Table of Contents

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Before You Begin . . . . . . . . . . . . . . . . . . . . . 2

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

Parts Included . . . . . . . . . . . . . . . . . . . . . . . . 2 General Information . . . . . . . . . . . . . . . . . . . . 2

Dimensions and Cabinet Requirements . . 3

Removing Packaging . . . . . . . . . . . . . . . . . 3

Preparing Oven . . . . . . . . . . . . . . . . . . . . . . . 3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Determine the Installation Type . . . . . . . . . . . 4 Pre-Assembly of Combination Ovens Prior to

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical Installation . . . . . . . . . . . . . . . . . . . 7

Installing the Oven Unit into

the Wall Cabinet . . . . . . . . . . . . . . . . . . . . . 8

For Best Installation . . . . . . . . . . . . . . . . . . . . 8 Removing the Bottom Hinge Oven Door . . . . 8 To replace the oven door: . . . . . . . . . . . . . . . 9

Testing Operation . . . . . . . . . . . . . . . . . . . 10

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Before Calling Service . . . . . . . . . . . . . . . . . 10

Cabinet Dimension Requirements . . . . . . 11

Dimensions for 27” Wall-Mounted Units . . . 11

Dimensions for 30” Wall-Mounted Units . 12

This Bosch Appliance is made by

BSH Home Appliances Corporation

1901 Main Street, Suite 600

Irvine, CA 92614

Questions?

1-800-944-2904

www.bosch-home.com

We look forward to hearing from you!

9 IMPORTANT SAFETY INSTRUCTIONS

READ AND SAVE THESE INSTRUCTIONS

Safety

WARNING:

If the information in this manual is not followed exactly, fire or shock may result causing property damage or personal injury.

WARNING:

Do not repair or replace any part of the appliance unless specifically recommended in the manuals. Improper installation, service or maintenance can cause injury or property damage. Refer to this manual for guidance. All servicing should be done by a qualified technician.

Appliance Handling Safety

Do not lift appliance by door handle. Remove the door for easier handling and installation. See instructions in Use and Care Manual.

Unit is heavy and requires at least two people or proper equipment to move.

Hidden surfaces may have sharp edges. Use caution when reaching behind or under appliance.

Safety Codes and Standards

This appliance complies with one or more of the following Standards:

•UL 858, Household Electric Ranges

•UL 923, Microwave Cooking Appliances

•UL 507, The Standard for the Safety of Electric Fans

•CAN/CSA-C22.2 No. 113-M1984 Fans and Ventilators

It is the responsibility of the owner and the installer to determine if additional requirements and/or standards apply to specific installations.

Electric Safety

Before you plug in an electrical cord, be sure all controls are in the OFF position.

If required by the National Electrical Code (or Canadian Electrical Code), this appliance must be installed on a separate branch circuit.

Installer - show the owner the location of the circuit breaker or fuse. Mark it for easy reference.

Important - Save these instructions for the local electrical inspector's use.

Before installing, turn power OFF at the service panel. Lock service panel to prevent power from being turned ON accidentally.

Refer to data plate for more information. See "Data Plate" under "Service" for data plate location.

Be sure your appliance is properly installed and grounded by a qualified technician. Installation, electrical connections and grounding must comply with all applicable codes.

Related Equipment Safety

Remove all tape and packaging before using the appliance. Destroy the packaging after unpacking the appliance. Never allow children to play with packaging material.

Never modify or alter the construction of the appliance. For example, do not remove leveling legs, panels, wire covers or anti-tip brackets/screws.

Transport

To avoid damage to the oven vent, use the transport method shown in the picture below.

Support the bottom of the oven from side to side when moving it into the installation location. Leave the unit attached to the shipping pallet until it is in front of the oven cavity, ready to lift into place.

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Preparation

Before You Begin

Tools and Parts Needed

•Phillips head screwdriver

•Star head screwdriver (T20)

•Measuring tape

•Drill with bit (1/8")

Parts Included

•Phillips head screws (6)

General Information

Power Requirements

The outlet must be properly grounded in accordance with all applicable codes.

For Best Installation

The oven can be difficult for two people to handle during installation. It is recommended to have three or more people available to assist with lifting the unit into place.

Removal of the bottom hinge oven door during installation (to provide the necessary handholds and to significantly reduce the unit weight) can be cumbersome unless the detailed door removal instructions are followed carefully.

Note: Do not attempt to remove the side hinge door (some models).

Please take time to read and follow the instructions provided for an improved installation experience.

Checklist

Use this checklist to verify that you have completed each step of the installation process. This can help you avoid common mistakes.

___ 1. Before installing the oven, be sure to verify the cabinet dimensions are correct for your unit and the required electrical connections are present.

___ 2. Refer to the installation manual for content regarding Safety, Cabinet Dimensions, Removing Packaging, Electrical Installation, Testing the Installation and Customer Service.

___ 3. Remove the oven door(s) to reduce the unit weight and to provide access to handholds for lifting.

___ 4. Move the oven unit into place in front of the cabinet opening, leaving the bottom packaging on the unit to avoid damaging flooring.

___ 5 Remove the T20 screws holding the unit to the base of the carton (using Star-head screwdriver).

___ 6. If installing a combination unit (oven and microwave or oven and steam oven) complete the assembly before installing the unit.

___ 7. Team lift the unit directly into the cabinet cutout taking care not to pinch fingers or scratch hands or arms. Make sure the electrical conduit reaches to the connection point properly.

___ 8. Slide the unit all the way into place, making sure to route the electrical conduit correctly.

___ 8. Fasten the oven unit to the cabinetry opening with the screws supplied (using Philips screwdriver).

___ 10. Reinstall the oven door(s) removed in step 2 above.

___ 11. Consult the complete installation instructions and follow the remainder of the procedures listed, including performing an operation test.

___ 12. All product literature and accessories (may be wrapped or boxed) with the oven.

___ 13. INSTALLER - Leave the literature pack and the accessories with the customer.

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Dimensions and Cabinet Requirements

Cabinet requirements vary depending on the model to be installed. Please consult the “Cabinet Dimension Requirements” section at the back of this installation manual for the details pertaining to your particular model.

All models require:

•1/4” (6.4 mm) space between the side of the oven and an adjacent wall or cabinet door when installed at the end of a cabinet run.

•Installation of 2x4’s extending front to back flush with the bottom and side of the opening to provide oven

support. This supporting base must be well secured to the floor/cabinet and must be level.

•The electrical conduit box must be located above the unit to facilitate connecting and servicing the unit.

•The cabinet base must be flat and capable of supporting the weight of your oven when in use (varies by model up to 429 lbs. (195 kg)). See the appropriate weight for your model in the “Cabinet Dimensions Requirements” section at the back of this installation manual.

Removing Packaging

•Cut straps on outside of box.

•Remove cardboard box.

•Remove all top and side cardboard and Styrofoam braces.

•Place oven in front of cabinets where it is to be installed.

•Unscrew unit from Left and Right Brackets as show in “Left and Right Packaging Bracket Removal.”

Left Packaging Bracket Removal

Right Packaging Bracket Removal

Note:

Different models use different packaging materials. Actual brackets may look differently. Bracket remains in packaging base. Unit should stay on packaging base until ready to be lifted into cabinet cutout.

Preparing Oven

Place oven in front of cabinets where it is to be installed. Rest it on a sturdy support so that it is in line with the cabinet cutout.

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Combination Oven Pre-Assembly

Installation

Determine the Installation Type

This installation manual provides instructions for the installation of single ovens, double ovens and combination ovens (a single oven combined with with microwave or steam oven).

Parts Provided

Oven Bottom trim (1)

Packed in a plastic sleeve, with mounting screws in a red bag within the sleeve

Standalone single and double oven units require no pre-assembly. Unless you are installing a combination oven, skip over the combination oven pre-assembly instructions and go directly to “Electrical Installation” which applies to all ovens.

Pre-Assembly of Combination Ovens Prior to Installation

Combination ovens (with microwave or steam oven) require the units to be assembled together prior to installing the combination unit into the wall cabinet.

Note: The single oven can be installed with a Steam Oven or with a Microwave Oven. The installation procedure differs between these. The parts contained in the square tube parts box are common to both installations.

Parts Provided

Universal connector bracket (2)

(in parts box on top of oven)

Screws (16)

(in red bag, inside parts box on top of oven)

Decorative trim (1)

Packed in bubble wrap, near the oven control panel.

Combo service slide assembly (2)*

*This part is preassembled on the oven to accomodate attachment of a microwave.

Installation with the Microwave Oven

Note: Do not place the oven into the wall cabinet until after mounting the microwave on it using the universal connector brackets.

1.The combo service slide assemblies are attached to the oven spaced to accept the microwave.

2.Install both universal connector brackets using six of the screws provided. Tighten screws securely, but do not overtighten.

Note: The universal connector brackets are interchangeable for the left and right sides of the oven. Be sure the taller vertical edge of the bracket is positioned to the outside of the oven.

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3. Install the decorative trim.

Position the decorative trim piece so the flanges with the holes in them face away from the oven door.

Align the outer flanges with the outside of the universal brackets. Fasten with 1 screw each into the end hole of the universal bracket. Tighten screws securely, but do not overtighten.

Combination Oven Pre-Assembly

4.Place the microwave oven unit on top of the universal connector brackets and fasten in place using three screws per side. Tighten the screws securely, but do not overtighten.

Note: The existing screws in the microwave base help with alignment. When lowering the microwave into place on the universal connector bracket, allow these screw heads to slide into the slots as shown in the illustration below. The screw nearest the front of the microwave slides into the base of the slope at the front of the bracket.

5.Continue with the unit installation in the following sections on electrical connection and installing the oven unit into the wall cabinet.

Installation with the Steam Oven

Note: Do not place the oven into the wall cabinet until after mounting the steam oven on it using the universal connector brackets.

1.Remove the six screws holding the combo service slide assemblies to the support bracket. Use a magnetic screwdriver bit to reach the screws through the large holes in the tops of the slides.

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Combination Oven Pre-Assembly

2.The screw in position A (nearest the inside edge, near control panel) must be moved to allow the universal bracket to be postioned there. Remove the inside screw (A) from the left support bracket and reinsert it into the third hole (B) from the inside edge of the support bracket. Repeat for the right support bracket.

3.Reattach the slide assemblies using the holes near the inside edge of the support bracket. Align the slide assembly parallel to the edge of the bracket and insert the first screw in hole (C). Insert all three screws for each slide assembly. Tighten the screws securely, but do not overtighten.

Note: When the correct holes are used, the front of the slide assembly will extend just past the edge of the horizontal support bar. The slide assembly will be about 1/8” (3 mm) from the inside edge of the support bracket.

4.Install the two universal connector brackets to the slide assemblies using the screws provided. Tighten screws securely, but do not overtighten.

Note: The universal connector brackets are interchangeable for the left and right sides of the oven. Be sure the

taller vertical edge of the bracket is positioned to the outside of the oven.

5. Install the decorative trim.

Position the decorative trim piece so the flanges with the holes in them face away from the oven door.

Align the inner flanges with the inside of the universal brackets. Fasten with one screw each into the end hole of the universal bracket. Tighten screws securely, but do not overtighten.

6.Place the steam oven unit on top of the universal connector brackets and fasten in place using two screws per side. Tighten the screws securely, but do not overtighten.

Note: The existing screws in the steam oven base help with alignment. When lowering the steam oven into place on the universal connector bracket, allow these screw heads to slide into the slots as shown in the illustration below. The screw nearest the front of the steam oven slides into the base of the slope at the front of the bracket.

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7.Continue with the unit installation in the following sections on electrical connection and installing the oven unit into the wall cabinet.

Connecting the Microwave Oven or Steam Oven Electrical Conduit to the Single Oven

Note: If installing the oven with a microwave or steam oven mounted as a combination unit, the microwave oven or steam oven power cable must be properly attached to the oven-mounted junction box. This must be done prior to supplying electric power to the oven unit.

9WARNING

Disconnect the oven from the electric power supply before connecting the microwave oven or steam oven wiring. Failure to do so could result in electrical shock and injury or death.

1.Check to be sure there is no electric power supplied to the oven.

2.Remove the oven mounted junction box cover (located on the rear top of the oven).

3.Remove the cap from the conduit access hole in the side of the oven mounted junction box.

4.Guide the four wires from the conduit cable coming from the microwave or steam oven through the hole in the oven mounted junction box.

5.Snap the conduit connector into the hole by pressing it in until it clicks into place.

6.Follow the wiring diagram label and match and connect each wire by color to the wires attached to the wiring block inside the oven mounted junction box. Push the bare end of the wire until it is snug in the wiring block then tighten down the retaining screw on each wire. Tighten securely, but do not over tighten.

7.Replace the oven mounted junction box cover and tighten the two screws holding it in place. Tighten the screws securely, but do not over tighten.

8.Refer to the Electrical Connection section for further information to complete the electrical connection of the combination unit to the main power supply.

Electrical Installation

All model ovens on the front cover of this installation instruction manual are dual rated, designed to be connected to either 208 or 240V AC, 60 Hz, 4 wire, singlephase power supply.

Model	Circuit Required
	208V, 60 Hz	240V, 60 Hz
HBN54, HBN84,
HBL53, HBL54,	30 AMP
HBL84, HBLP4
HBL55	30 AMP	40 AMP
HBN56, HBL56,
HBL57, HBN86,
HBL86, HBL87,	40 AMP
HBLP6, HBLP7,
HSLP7

The electrical supply should be a 4-wire single-phase AC. Install a suitable conduit box (not furnished). An appropriately-sized, UL-listed conduit connector must be used to correctly attach the conduit to the junction box.

Important: Local Codes may vary; installation, electrical connections and grounding must comply with all applicable local codes.

If local codes permit grounding through the electrical supply neutral, connect both the white neutral wire and the green ground wire from the oven to the white neutral electrical supply wire.

Important: If you have purchased a combination oven unit (one that includes a microwave or steam oven over the single oven), see the preceding section “Connecting the Microwave Oven or Steam Oven Electrical Conduit to the Single Oven” showing electrical connection of the combination unit components.

9WARNING

Complete the connection of the microwave or steam oven conduit to the single oven before proceeding with the unit electrical connection to the main power supply.

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Electrical Connection to Main Power Supply

The four-wire connection is preferred, but where local codes permit, the three wire connection is also acceptable.

Four-wire Connection

Ungrounded Neutral

	power supply
	junction box	black wires
	red wires
	green or bare
	wire
	green wire	white wires
	UL listed	cable from
	connector
		oven

•Connect the red oven wire to the red electrical supply wire (hot wire).

•Connect the black oven wire to the black electrical supply wire (hot wire).

•Connect the white neutral oven wire to the white neutral (not bare or green ground) electrical supply wire.

•Connect the green ground oven wire to the bare or green ground electrical supply wire.

Three-wire Connection

Grounded Neutral

power supply
junction box
red wires	black wires
white, bare, or
green wire	UL listed
	connector
white wire
green wire	cable from
	oven

•Connect red wire from oven to red wire in junction box.

•Connect black wire from oven to black wire in junction box.

•Connect both green ground wire and white wire from oven to white, green or bare neutral wire in junction box.

The conduit cable, where connected at the oven, swivels. Rotate conduit cable upward (or downward) and direct through hole prepared in cabinet to attach to J-Box.

To maintain serviceability, the flex conduit must not be shortened and should be routed to permit temporary removal of the oven.

Installing the Oven Unit into the Wall Cabinet

Note:

Before installing the oven, be sure to verify the cabinet dimensions and electrical connections.Check that the cavity is level and plumb for correct installation.

Combination units (ovens with a microwave or steam oven) have additional installation instructions. Please see the preceeding section “Pre-Assembly of Combination Ovens Prior to Installation”.

For Best Installation

The double and combination ovens can be difficult for two people to handle during installation. It is recommended to have three or more people available to assist with lifting the unit into place. It is also recommended to remove the oven door (bottom hinge models only) to help reduce the unit weight and provide easier access to the handholds inside the oven cavity.

Removing the Bottom Hinge Oven Door

Important: Do not attempt to remove the side hinge door (some models).

For ease of installation, some oven doors may be removed to reduce the weight of the oven by 30 lbs (14 kg) per door, before installing into the cabinet. See instructions below.

9WARNING

•Make sure oven is cool and power to the oven has been turned off before removing the door. Failure to do so could result in burns.

•The oven door is heavy and fragile. Use both hands to remove the oven door. The door front is glass. Handle carefully to avoid breaking.

•Grasp only the sides of the oven door. Do not grasp the handle as it may swing in your hand and cause damage or injury.

•Failure to grasp the oven door firmly and properly could result in personal injury or product damage.

•To avoid injury from hinge bracket snapping closed, be sure that both levers are securely in place before removing the door. Also, do not force door open or closed - the hinge could be damaged and injury could result.

•Do not lay removed door on sharp or pointed objects as this could break the glass. Lay on a flat, smooth surface, positioned so that the door cannot fall over.

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To remove the oven door:

1. Be sure to read the above WARNING before attempting to remove the door.

2. Open the door completely.

3. Flip levers on hinges toward you.

4. Holding the door firmly on both sides and using both hands, close the door gently until it stops against the levers, about 30º from the closed position.

5. Carefully lift the door up and out of the hinge slots. Hold firmly; the door is heavy.

6. Place the door in a convenient and stable location unitl you are ready to reinstall it.

Placing the Oven Into the Cabinet

Opening

9CAUTION

To avoid damage to the door do not lift, pull or push the unit during installation by using the oven door handle as a gripping point.

Note: It is recommended to wear gloves and long sleeves to protect hands and forearms from abrasion and potential scratches during the lifting process. It is also recommended to take off watches and jewelry and to wear work shoes during installation for foot protection.

When lifting the unit into place avoid grasping the upper element to avoid damaging it. See the illustration following for the correct lifting point.

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1.The unit and its bottom packaging (pallet) should be positioned close to and in front of the cabinet opening prior to beginning to lift the unit into place.

2.Lift or slide unit into the cabinet cutout without allowing the unit base to contact the flooring.

3.Check that the conduit cable does not fall behind the unit during installation. It may help to run the conduit into the area it will be connected to (such as an overhead or adjacent cabinet) and tape the end down so it doesn’t fall out while the unit is being slid into place.

4.Guide the unit straight back into the cabinet cutout.

Note: Be careful not to crimp the flexible conduit between the oven and the cabinet back wall. If necessary, guide the flexible conduit into the wall or cabinet access hole so it doesn’t prevent the unit from being pushed all the way into the cabinet opening. The oven should be straight and level, not crooked.

5.Install the oven bottom trim while the door is removed and the unit is in place. (Do not push the unit all the way in, leave about 1 inch extending from the front of the cabinet). Use two of the screws provided in the red bag included with the trim piece.

1.Align holes in trim ends with holes at bottom of oven.

2.Insert screws and tighten firmly. Do not overtighten.

3.Push the unit straight in until the oven trim is flush with the front of the cabinet trim.

4.Install supplied screws through tap holes in trim. (2 screws for single ovens, 4 screws for double/combo ovens).

To replace the oven door:

1. Hold the door firmly in both hands.

2. Hold the door at a 30º angle from the closed position and insert hinges into the slots. You may need to rock the door forward and backward slightly to seat the hinge feet.

3. The door may need to be removed and reinserted until the hinges sit correctly in the slots.

4.Open door all the way to expose hinges, levers, and slots.

5.Push levers forward and down until seated on the bracket.

6.Close and open door slowly to be sure it is correctly and securely in place. Door must be straight, not crooked.

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Testing Operation

1.Turn on power at the breaker.

2.Test the oven mode.

Select the BAKE mode. See the Use and Care Manual for detailed operation instructions.

3.Verify that the oven light comes on and the oven begins to preheat.

4.Test the door lock.

Set the SELF CLEAN mode. Confirm that the door locks when the lock icon appears in the display.

5.If installing a double oven, test the second oven as well.

6.If any of the tests do not result as explained above, contact Bosch service for assistance. Otherwise, the installation is complete at this time.

Service

Before Calling Service

See Use and Care Manual for troubleshooting information. Refer to the Warranty in the Use and Care Manual.

To reach a service representative, see the contact information at the front of the manual. Please be prepared with the information printed on your product data plate when calling.

Data Plate

The data plate shows the model and serial number. Refer to the data plate on the appliance when requesting service. The data plate is located on the underside of the control panel.

Data

Plate

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Cabinet Dimension Requirements

Dimensions for 27” Wall-Mounted Units

Single Oven 27” Double Oven 27”

*For single ovens installed in a wall cabinet, the junction box may be located above or beneath the unit within reach of the power cable.

Flush installation requires two side cleats to be attached inside the cabinet frame, recessed from the front.

It is good practice, when oven is installed at the end of a cabinet run, adjacent to a perpendicular wall or cabinet door, to allow at least 1/4” space between the side of the oven and the wall/door.

For oven support, install 2x4’s extending front to back flush with the bottom and the side of the opening. The supporting base must be well secured to the floor/cabinet and level.

Note:

The conduit box can be installed above or to the right of the unit, within range of the power conduit.

The cabinet cavity must be plumb and the base must be flat and level and capable of supporting a weight of at least 193 lbs (87 kg).

*For single ovens installed in a wall cabinet, the junction box may be located above or beneath the unit within reach of the power cable.

Flush installation requires two side cleats to be attached inside the cabinet frame, recessed from the front.

It is good practice, when oven is installed at the end of a cabinet run, adjacent to a perpendicular wall or cabinet door, to allow at least 1/4” space between the side of the oven and the wall/door.

For oven support, install 2x4’s extending front to back flush with the bottom and the side of the opening. The supporting base must be well secured to the floor/cabinet and level.

Note:

The conduit box must be located above the unit to facilitate connecting and servicing.

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The cabinet cavity must be plumb and the base must be flat and level and capable of supporting a weight of at least 361 lbs (164 kg).

Single Oven, Undercounter 27”

Dimensions for 30” Wall-Mounted Units

Single Oven 30”

Flush installation requires two side cleats to be attached inside the cabinet frame, recessed from the front.

It is good practice, when oven is installed at the end of a cabinet run, adjacent to a perpendicular wall or cabinet door, to allow at least 1/4” space between the side of the oven and the wall/door.

For oven support, install 2x4’s extending front to back flush with the bottom and the side of the opening. The supporting base must be well secured to the floor/cabinet and level.

The cabinet base must be flat and capable of supporting a weight of at least 193 lbs (87 kg).

.

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*For single ovens installed in a wall cabinet, the junction box may be located above or beneath the unit within reach of the power cable.

Flush installation requires two side cleats to be attached inside the cabinet frame, recessed from the front.

It is good practice, when oven is installed at the end of a cabinet run, adjacent to a perpendicular wall or cabinet door, to allow at least 1/4” space between the side of the oven and the wall/door.

For oven support, install 2x4’s extending front to back flush with the bottom and the side of the opening. The supporting base must be well secured to the floor/cabinet and level.

Note:

The conduit box must be installed either above or below the unit. If the conduit box is installed below the unit, a 2” diameter hole or space is required between the back wall and the right rear of the 2x4 supports.

The cabinet cavity must be plumb and the base must be flat and level and capable of supporting a weight of at least 212 lbs (96 kg).

Double Oven 30”

Flush installation requires two side cleats to be attached inside the cabinet frame, recessed from the front.

It is good practice, when oven is installed at the end of a cabinet run, adjacent to a perpendicular wall or cabinet door, to allow at least 1/4” space between the side of the oven and the wall/door.

For oven support, install 2x4’s extending front to back flush with the bottom and the side of the opening. The supporting base must be well secured to the floor/cabinet and level.

Note:

The conduit box must be located above the unit to facilitate connecting and servicing.

The cabinet cavity must be plumb and the base must be flat and level and capable of supporting a weight of at least 390 lbs (177 kg).

Combination Oven and Microwave 30”

Flush installation requires two side cleats to be attached inside the cabinet frame, recessed from the front.

Top View

Side View

It is good practice, when oven is installed at the end of a cabinet run, adjacent to a perpendicular wall or cabinet door, to allow at least 1/4” space between the side of the oven and the wall/door.

For oven support, install 2x4’s extending front to back flush with the bottom and the side of the opening. The supporting base must be well secured to the floor/cabinet and level.

Note:

The conduit box must be located above the unit to facilitate connecting and servicing.

The cabinet cavity must be plumb and the base must be flat and level and capable of supporting a weight of at least 310 lbs (141 kg).

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