GE CMB903P2NS1 Installation Guide
Installation Instructions
Built-In Steam Oven
CMB903M, CMB903P
Contents
Safety Information ...............................2
Installation Instructions
Step 1, Remove Packaging and Parts ...............3
Step 2, Prepare the Opening ......................3
Step 3, Door Removal ...........................9
Step 4, Electrical Requirements ....................9
Step 5, Make Electrical Connections ...............10
TM
Step 6, Three-Conductor Branch Circuit Connection . .11
Step 7, Four Conductor Branch Circuit Connection . . .11
Step 8, Slide Oven into Opening ..................12
Step 9, Install Mounting Screws ..................12
Step 10, Replacing the Oven Door ................13
Step 11, Final Installation Checklist ................13
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49-2000694 Rev. 1 02-20 GEA
Safety Information
BEFORE YOU BEGIN
Read these instructions completely and carefully.
Ŷ
IMPORTANT — Save these instructions for local
inspector’s use.
Ŷ
IMPORTANT — Observe all governing codes and
ordinances.
Ŷ
Note to Installer – Be sure to leave these
instructions with Consumer.
Ŷ
Note to Consumer – Keep these instructions for
future reference.
Ŷ
Skill level – Installation of this appliance requires a
qualified installer or electrician.
Ŷ
Proper installation is the responsibility of the
installer.
Ŷ
Product failure due to improper installation is not
covered under Warranty.
Ŷ
Product is for indoor use only.
ATTENTION INSTALLER: All electric wall ovens
must be hard-wired (direct-wired) into an approved
junction box. A plug and receptacle is NOT permitted
on these products.
FOR YOUR SAFETY:
WARNING
switch power off at the service panel and lock the
service disconnecting means to prevent power from
being switched on accidentally. When the service
disconnecting means cannot be locked, securely fasten
a prominent warning device, such as a tag, to the
service panel.
Be sure the oven is securely installed in a cabinet that
is firmly attached to the house structure. Weight on
the oven door could cause the oven to tip and result in
injury. Never allow anyone to climb, sit, stand or hang on
the oven door.
Make sure the wall coverings, counters and cabinets
around the oven can withstand the heat (up to 200°F
[93.3°C]) generated by the oven.
Before beginning the installation,
2 31-2000694 Rev. 1
Installation Instructions
MATERIALS YOU MAY NEED
Junction Box
Wire Nuts
Strain Relief Clamp for 1/2” Conduit
36” (91 cm) of String
TOOLS YOU MAY NEED
1/8” Drill Bit and Electric or Hand Drill
Phillips Screwdriver
Wire Strippers
REMOVE PACKAGING
1
MATERIALS AND PARTS
Failure to remove packaging materials could result in
damage to the appliance. Remove all packing parts
from oven, racks and heating elements. Remove
protective film and labels on the outer door and control
panel. Open oven door and remove literature pack
and reservoir, cookware, meat probe, and oven racks.
Locate parts package containing mounting screws.
DESIGN INFORMATION
STEAM OVEN INSTALLATIONS
The steam oven may be installed in a cabinet alone
or above a warming drawer, single wall oven, or
below another steam oven or speedcook oven. The
steam oven may also be installed side by side, below
a countertop, or below specified cooktops. See the
label on the outside of the oven for approved models.
IMPORTANT: Always refer to individual installation
instructions packed with each product for specific
requirements.
2
PREPARE THE OPENING
NOTE: If the cabinet does not have a solid bottom,
two braces or runners must be installed to support the
weight of the oven. For steam ovens, the runners and
braces must support 170 lbs (78 kg).
NOTE: If marks, blemishes or the cutout opening are
visible above the installed oven, it may be necessary
to add wood shims under the runners until the marks
or opening are covered.
NOTE: If the cabinet does not have a front frame and
the sides are less than ¾” (1.9 cm) thick, shim both
sides equally to establish the cutout width.
4 Mounting Washers
4 Mounting Screws
Solid Pan
Oven Rack
Perforated Pan
with Lid
Reservoir with
Inlet Tube
Suitable
Bracing
to Support
Runners
2" x 4" (5 cm x 10 cm)
or Equivalent Runners Level
with Bottom of Cutout
and Flush with Sides of Cutout
C
L
Table Rack
31-2000694 Rev. 1 3
Installation Instructions
2 A
CUTOUT FOR STEAM OVENS IN WALL CABINET
NOTE: If the cabinet does not have a front frame and the sides are less than 3/4” (1.9 cm) thick, shim both sides
equally to establish the cutout width.
Junction Box
Location (see
detail below)
Opening
Between
Inside Walls
Must be at
Least 28-1/2”
(72.4 cm)
Wide
E
Cutout Depth
23-1/2”
(59.7 cm) Min.
NOTE: Allow
1/4” (0.64 cm)
clearances from
side edges of
oven door.
D
B
F
C
G
Recommended
Cutout Location
from Floor
42” (106.68 cm)
Side-by-Side Installations
Install two ovens in separate cutouts.
Center Line Center Line
30.5” (77.5 cm)
Cutout –
observe all
dimensions and
requirements.
1”
3-3/4”
14”
Junction Box not allowed in this space
Cutout –
observe all
dimensions and
requirements.
5-1/8” (13 cm) Min.
Junction Box Location
Junction Box
allowed if flush
Preferred Junction
Box location
2-1/4”
1-3/4”
A
Dimension Dimension
30” Steam Oven
Description
A Cabinet Width 30” (76.2 cm)
B Cutout Width 25-1/4” (64.1 cm) min.
25-3/4” (65.4 cm) max.
C Cutout Height 17-1/2” (44.4 cm) min.
17-3/4” (45.1 cm) max.
D Clearance from cutout -
2-1/4” (5.7 cm)
side edges*
E Clearance to Adjacent
13” (33 cm) min.
Corners, Drawers,
Walls, etc., When Door
Is Open
F Clearance from cutout
1” (2.5 cm) min.
- top*
G Clearance from cutout -
3/4” (1.9 cm)
bottom*
H Junction Box Location see detail
right side preferred
* Refers to minimum clearance required for wall oven installation and does not reflect actual
product dimensions.
4 31-2000694 Rev. 1
Installation Instructions
2 B
CUTOUT FOR STEAM OVENS - UNDER COUNTER
NOTE: These ovens are only approved to be installed under the specific models as labeled on the unit.
Gas or Electric Cooktops May Be Installed Over
This Oven. See Cooktop Installation Instructions
for Cutout Size. See Label on the Outside of the
Oven for Approved Models.
22" (55.9 cm) Min.
(23" [58.4 cm] Min.
with Dropbox
Models) above
Platform Support
MUST SUPPORT 170 lbs. (76.5 kg) FOR STEAM OVENS
Side-by-Side Installations
Install two ovens in separate cutouts.
Center Line Center Line
30.5” (77.5 cm)
Cooktop
Cutout – observe
all dimensions and
requirements.
Cutout – observe
all dimensions and
requirements.
5-1/8” (13 cm) Min.
NOTE: One cooktop may be centered over either
oven in the side-by-side installation.
IMPORTANT: Maintain
a minimum distance
of 22” (55.9 cm) (23”
[58.4] min. for dropbox
models) from the
top surface of the
countertop to the steam
oven platform to ensure
that the cooktop and
steam oven do not
interfere with each other
(see picture).
2-1/2” min. (6.4cm)
22” min.
(55.9 cm)
(23” min with
dropbox
models)
Cooktop
Steam Oven
SIDE VIEW
31-2000694 Rev. 1 5
Installation Instructions
2 C
CUTOUT FOR STEAM OVEN
OVER A WARMING DRAWER
NOTE: Install the steam oven only with specific
models listed on the label located on the outside of
the oven.
NOTE: Additional clearances between cutouts may be
required. Check to be sure the steam oven supports
above the Warming Drawer location do not obstruct
the required interior depth and height.
When installing a Warming Drawer below a steam
oven, a separate 120V, 60 HZ, properly grounded
receptacle must be installed. Refer to installation
instructions packed with the Warming Drawer for
specific installation requirements.
Anti-Tip Block
Against Rear
Wall Per
Warming
Drawer
Requirements
1-3/4”
(4.4 cm) Min.
2 D
CUTOUT FOR STEAM OVEN
OVER A WALL OVEN
Ŷ,I\RXDUHUHSODFLQJDQHOHFWULFGRXEOHRYHQZLWKWKH
combined installation of a built-in steam oven and a
single oven, use the dimensions shown. The middle
rail separating the two openings may need to be
larger than the 1-3/4” minimum shown.
When installed over a wall oven: Steam ovens are
suitable for installation above only certain specified
wall oven models. See the label attached to the
outside of the steam oven for suitable models.
30”
17-3/4”
(17-1/2 min)
25-1/4”
23-1/2”
Construct
Solid Bottom
Min. 3/8”
Plywood
Supported by
2x4 or 2x2
Runners all
Four Sides
1-3/4”
(4.4 cm) Min.
Per Oven
Requirement
Per Warming
Drawer
Requirements
6 31-2000694 Rev. 1
Installation Instructions
2 E
CUTOUT FOR STEAM OVEN
OVER A WALL OVEN AND
WARMING DRAWER
Construct
30”
17-3/4”
(17-1/2 min)
23-1/2”
25-1/4”
Solid Bottom
Min. 3/8”
Plywood
Supported
by 2x4 or
2x2 Runners
All Four
Sides
1-3/4”
(4.4 cm) Min.
Per Oven
Requirement
2” Min.
2 F
CUTOUT FOR STEAM OVEN
UNDER ANOTHER BUILT-IN STEAM
OVEN/ BUILT-IN SPEEDCOOK OVEN
30Ǝ
17-1/2Ǝ
17-3/4” for Steam Oven
17-3/4”
(17-1/2 min)
23-1/2Ǝ
25-1/4Ǝ
Construct solid
bottom - Min.
3/8” plywood
supported on all
four sides. Must
be able to support
weight of oven
and contents.
SpeedCook or
Steam Oven
1-3/4”
(4.4 cm) Min.
Steam Oven
Per warming drawer
requirement
NOTE: Additional clearances between the cutouts
may be required. Check to be sure the oven supports
above the Warming Drawer location do not obstruct
the required interior depth and height. See Warming
Drawer installation instructions for details.
When installed over a wall oven or warming
drawer: Steam ovens are suitable for installation
above only certain specified appliance models. See
the label attached to the outside of the steam oven for
suitable models.
CAUTION
For personal safety, the
mounting surface must be capable of supporting the
cabinet load, in addition to the added weight of this
approximate 120-pound oven, plus additional oven
loads of up to 50 pounds or a total weight of 180
pounds.
Ŷ
If you are mounting a Built-In Steam Oven under a
Built-In SpeedCook Oven or another Built-In
Oven, use the dimensions
shown. The middle rail
Steam
separating the two openings may need to be larger
than the
1-3/4
Ǝ minimum shown.
When installed under a Built-In SpeedCook Oven
or another Built-In Steam Oven: Steam ovens are
suitable for installation under only certain specified
appliance models. See the label attached to the
outside of the steam oven for suitable models.
31-2000694 Rev. 1 7
Installation Instructions
2 G
CUTOUT FOR STEAM OVEN
BESIDE ANOTHER BUILT-IN STEAM
OVEN/BUILT-IN SPEEDCOOK OVEN:
23-1/2Ǝ
25-1/4Ǝ
17-1/2ƎPLQ
ƎIRU
Steam Oven
Ŷ If you are mounting a Built-In Steam Oven beside a
Built-In SpeedCook Oven or another Built-In Steam
Oven, use the dimensions shown. The middle rail
separating the two openings may need to be larger
than the 4-1/2Ǝ minimum shown.
When installed beside a Built-In SpeedCook Oven
or another Built-In Steam Oven: Steam ovens are
suitable for installation under only certain specified
appliance models. See the label attached to the
outside of the steam oven for suitable models.
25-1/4Ǝ
17-1/2ƎPLQ
ƎIRU
Steam Oven
4-1/2” Min.
(5-1/2” Recommended)
2 H
FLUSHMOUNT
INSTALLATION PREPARATION
(Cont.)
Install onto the cabinet floor between the side
cleats, push it all the way back against cabinet wall
and make sure its front face aligns with the front
faces of the side cleats (1-1/2” gap from the front
cabinet face).
A
C
B
A Side cleats depth 2-1/2” min.
B Bottom cleat height 5/8”
C Bottom cleat depth Cabinet depth minus 1-1/2”
D Bottom cleat width 25-1/4”
E All three cleats inset
from cabinet front
TOP
C
VIEW
A
D
E
1-1/2”
D
2 H
INSTALLATION PREPARATION
PREPARE THE INTERIOR
Cut and install side cleats:
Ŷ Cut side wood cleats to height of cabinet opening
and approx. 2-1/2” in depth. Install, on each side,
1-1/2” from the front face of the cabinet.
Cut and install bottom cleat:
Ŷ Cut bottom wood cleat to a height of 5/8” minimum,
a depth of the cabinet minus 1-1/2” and a width
of the cabinet opening (30”) minus two side cleat
thicknesses (minimum 1/2” each) - 25 1/4” minimum
(29” if using 1/2” side cleats).
FLUSHMOUNT
1/2” min
18-3/4”
5/8” min
Front Face of Cabinet
25-1/4” min
30”
Front View
EE
1/2” min
8 31-2000694 Rev. 1
A A
Installation Instructions
3
DOOR REMOVAL
NOTE: Door removal is not a requirement
for installation of the product but is an added
convenience.
To remove the door:
A. Open the oven door as far as it will go.
B. Remove hinge bracket, if equipped,
from front frame and set aside.
The hinge bracket must be
replaced, if equipped, for proper
door functionality when door is
reinstalled.
C. Push both hinge locks down toward
the door frame to the unlocked
position. This may require a flatblade screwdriver. DO
NOT LIFT THE DOOR BY
THE HANDLE!
D. Place hands on
both sides of the door
and close the oven
door to the removal
position (approximately 1”–2” [2.5 cm–5.1 cm] from
the closed position).
E. Lift the door up and out until the hinge arms clear
the slots. NOTE: The oven door is very heavy. Be
sure you have a firm grip before lifting the oven
door off the hinges. Use caution once the door is
removed. Do not lay the door on its handle. This
could cause dents or scratches.
Hinge Clears Slot
Hinge Slot
Hinge Arm
Hinge Bracket
Hinge Unlocked
Position
4
ELECTRICAL REQUIREMENTS
WARNING
grounded.
WARNING
an extension cord with this appliance.
WARNING
fuse or open circuit breaker before beginning
installation.
WARNING
house wiring to copper leads can result in an
electrical hazard or fire. Use only connectors designed
for joining copper to aluminum and follow the
manufacturer’s recommended procedure closely.
We recommend you have the electrical wiring and
hookup of your appliance connected by a qualified
electrician. After installation, have the electrician show
you how to disconnect power from the appliance.
You must use a single-phase, 120/208 VAC or
120/240 VAC, 60 Hertz electrical system. If you
connect to aluminum wiring, properly installed
connectors approved for use with aluminum wiring
must be used.
Effective January 1, 1996, the National Electrical
Code requires that new construction (not existing)
utilize a four-conductor connection to an electric oven.
When installing an electric oven in new construction,
a mobile home, recreational vehicle or an area where
local codes prohibit grounding through the neutral
conductor, refer to the section on four-conductor
branch circuit connections.
Check with your local utilities for electrical codes which
apply in your area. Failure to wire your oven according
to governing codes could result in a hazardous
condition. If there are no local codes, your oven must
be wired and fused to meet the National Electrical
Code, NFPA No. 70 – latest edition, available from the
National Fire Protection Association.
This appliance must be properly
To prevent fire or shock, do not use
To prevent shock, remove house
Improper connection of aluminum
31-2000694 Rev. 1 9
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