Hobart CE6HD, CE10HD, ML-138011, CE10FD, CE20HD User Manual
...
ELECTRIC COMBI,
CONVECTION & STEAM OVENS
BOILERLESS
(LEFT HINGED DOOR)
CE6HD ML-138010
CE10HD ML-138012
CE10FD ML-138016
CE20HD ML-138014
CE20FD ML-138018
(RIGHT HINGED DOOR)
CE6HD ML-138011
CE10HD ML-138013
CE10FD ML-138017
CE20HD ML-138015
CE20FD ML-138019
701 S. RIDGE AVENUE
TROY, OHIO 45374-0001
937 332-3000
www.hobartcorp.com
FORM 35474 (July 2007)
TABLE OF CONTENTS
GENERAL ..............................................................................................................................................................3
INSTALLATION ......................................................................................................................................................3
Unpacking ........................................................................................................................................................3
Installation Codes and Standards ....................................................................................................................3
Location ...........................................................................................................................................................4
Door Opening ...................................................................................................................................................4
Stacking Kits ....................................................................................................................................................4
Leveling ............................................................................................................................................................4
Water Requirements ........................................................................................................................................4
Plumbing Connections .....................................................................................................................................4
Water Supply Connections ...............................................................................................................................4
Drain Connection .............................................................................................................................................5
Electrical Connection .......................................................................................................................................5
Vent Hood ........................................................................................................................................................5
Before First Use ...............................................................................................................................................5
OPERATION ...........................................................................................................................................................6
Door Switch ......................................................................................................................................................6
Door Opening and Closing ...............................................................................................................................6
Loading the Oven .............................................................................................................................................6
Unloading the Oven .........................................................................................................................................7
Cooking Modes ................................................................................................................................................7
Control Panel ...................................................................................................................................................7
Initial Start-up .................................................................................................................................................10
Setting the Internal Clock ...............................................................................................................................10
Setting the Temperature .................................................................................................................................10
Setting the Timer ............................................................................................................................................11
Setting the Humidity ....................................................................................................................................... 11
Setting the Vent Position ................................................................................................................................11
Setting the Fan Speed ...................................................................................................................................12
Fast Cool Down .............................................................................................................................................12
Selecting the Cooking Mode ..........................................................................................................................13
Preheating the Oven ......................................................................................................................................13
Using Convection Mode .................................................................................................................................13
Using Steam Mode ........................................................................................................................................14
Using Combi Mode ........................................................................................................................................14
Temperature Probe ........................................................................................................................................15
Using the Product Temperature Probe ...........................................................................................................16
Writing a Cooking Phase................................................................................................................................17
Erasing a Cooking Phase ..............................................................................................................................17
Writing a Cooking Program ............................................................................................................................18
Modifying a Cooking Program ........................................................................................................................19
Reviewing a Cooking Program ......................................................................................................................19
Erasing a Cooking Program ...........................................................................................................................19
Using a Cooking Program ..............................................................................................................................20
Setting a Preheat Program ............................................................................................................................20
MAINTENANCE ...................................................................................................................................................21
Service Adjustments ......................................................................................................................................21
Shutting Down the Oven ................................................................................................................................21
CLEANING ...........................................................................................................................................................21
TROUBLESHOOTING ...............................................................................................................
Autodiagnostics ..............................................................................................................................................23
Service and Parts Information ........................................................................................................................23
Service Parameter Setup ...............................................................................................................................24
..........................23
©HOBART, 2007
– 2 –
INSTALLATION, OPERATION AND CARE OF
ELECTRIC COMBI, CONVECTION & STEAM OVENS
SAVE THESE INSTRUCTIONS
GENERAL
The Electric Combi, Convection & Steam Ovens are single compartment ovens that provide convection
heating and/or steaming in the cooking chamber.
The Hobart Combi Electric ovens are sized 6, 10, or 20 levels high. The 6 level ovens are Half depth only.
The 10 and 20 level ovens are either Full or Half depth. All models include a Digital programmable control.
The bold numbers and letters explain the model-number conventions.
The 6 or 10 level ovens can be installed on a suitable countertop using the 2" legs (standard) or the optional
6" legs. The 6 or 10 level ovens can also be installed on an accessory stand. The accessory stand may
be equipped with an accessory Pan Slide which provides rack or pan storage underneath the oven. On 6
or 10 level ovens, the accessory Landing Table can load or unload all racks in one motion when the oven
is mounted on the accessory stand. Additional racks are also available accessories. The 20 level ovens
are installed with legs and come with a Trolley to allow loading or unloading all racks in one motion. An
optional Hose Spray accessory supplied by others can be installed near the oven to facilitate easy cleaning
of the accessory racks.
INSTALLATION
UNPACKING
Immediately after unpacking the oven, check for possible shipping damage. If the oven is found to be
damaged, save the packaging material and contact the carrier within 15 days of delivery.
Prior to installation, verify that the electrical and water service agrees with the specifi cations on the oven
data plate and in this manual.
INSTALLATION CODES AND STANDARDS
In the United States, the Hobart Combi Oven must be installed in accordance with:
1. State and local codes.
2. National Electrical Code (ANSI/NFPA No.70, latest edition) available from the National Fire Protection
Association, Batterymarch Park, Quincy, MA 02269.
3. Vapor Removal from Cooking Equipment, (NFPA-96, latest edition) available from NFPA.
In Canada, the Hobart Combi Oven must be installed in accordance with:
1. Local codes.
2. Canadian Electrical Code (CSA C22.2 No.3, latest edition) available from the Canadian Standards
Association, 5060 Spectrum Way, Mississauga, Ontario, Canada L4W 5N6.
– 3 –
LOCATION
Allow space for operating the oven. Do not obstruct the ventilation ports above the oven. To provide
ventilation access, allow 1" clearance on the left side of the oven and 2
1
/2" clearance at the rear. A suitable
amount of space (18" minimum) should be provided on the right side of the machine for operation, cleaning
and service.
DOOR OPENING
The standard oven is delivered with the door hinged on the left. If the door opening needs to be changed,
contact your authorized Hobart Service offi ce.
STACKING KITS
Stacking kits are available to allow ovens to stack, one on top of the other (available for 6 and 10 level
ovens only). The bottom oven must be the same depth as the upper oven. Assembly Instructions are
included with the kit.
LEVELING
Use a spirit level on a rack in the oven to make sure the oven is level, both front-to-back and side-to-side.
On 20 levels, accessory stands, and optional 6" legs, adjust the leveling feet on the bottom of the legs by
turning the feet in or out to level the oven. After the drain is connected, check for level by pouring water
onto the fl oor of the compartment. All water should drain through the drain opening.
WATER REQUIREMENTS
As with all steam related products, water fi ltration and regular fi lter replacements coupled with
routine deliming are required. Your local Hobart Service offi ce can recommend a water treatment system
to meet the needs of your local water conditions. Contact your local Hobart Service representative for
water treatment offerings.
Proper water quality can improve the taste of the food prepared in the oven, reduce liming and extend
equipment life. Local water conditions vary from one location to another. The recommended proper water
treatment for effective and effi cient use of this equipment will also vary depending on the local water conditions.
Ask your municipal water supplier for details about your local water supply prior to installation.
Recommended water hardness is less than 5.0 grains of hardness per gallon with pH from 7.0 to 8.0.
Chlorides must not exceed 30 parts per million. Water hardness above 6.0 grains per gallon should be
treated by a water conditioner (water softener and/or in-line water treatment). Water hardness below 4.0
grains per gallon may also require a water treatment system to reduce potential corrosion. Water treatment
has been shown to reduce costs associated with machine cleaning, reduce deliming and reduce corrosion
of metallic surfaces.
PLUMBING CONNECTIONS
Plumbing connections must comply with applicable sanitary, safety and plumbing
codes.
WATER SUPPLY CONNECTIONS
Connect treated potable water (cold) to the inlet. Untreated water contains scale producing minerals which,
if supplied, can precipitate and adhere to the surfaces inside the oven. This can result in early component
failure and reduced product life.
– 4 –
DRAIN CONNECTION
In order to avoid any back pressure in the oven, do not connect solidly to any drain.
Extend the drain line from the 1" NPT drain pipe extending from the bottom of the oven at the rear to an
open gap-type drain. Drain piping must have suitable pitch, have appropriate support along its length,
and have no connection to other piping. The material used in the drain line should be heat resistant to at
least 212°F (100°C).
ELECTRICAL CONNECTION
Electrical and grounding connections must comply with the applicable portions of
the National Electrical Code and/or other local electrical codes.
Disconnect electrical power supply and follow lockout / tagout procedures.
The wiring diagram is located on the inside surface of the right side panel as you face the oven. Use
copper wire rated for at least 194°F (90°C) for the connection.
Model Volts Hertz Phase Amps
CE6HD
CE10HD
CE10FD
CE20HD
CE20FD
208
240
480
208
240
480
208
240
480
208
240
480
208
240
480
60 3
60 3
60 3
60 3
60 3
25
22
11
50
44
22
66
58
29
100
87
44
117
101
58
NOTE: Single-phase blower motors are used on these ovens so there is no need to check direction of
motor rotation. The fan will rotate in the proper direction.
VENT HOOD
Some local codes may require the Combi oven to be located under an exhaust hood. Information on the
construction and installation of ventilating hoods may be obtained from Vapor Removal from Cooking
Equipment, NFPA Standard No. 96 (latest edition).
BEFORE FIRST USE
Before using the oven for the fi rst time, it must be "burned in" to release any odors that might result from
heating the new surfaces in the oven. Operate the oven at 482°F for 45 minutes in Convection Mode.
– 5 –
OPERATION
The oven and its parts are hot. Use care when operating, cleaning or servicing the
oven. The cooking compartment contains live steam. Stay clear when opening door.
DOOR SWITCH
The oven is equipped with a feature that shuts off power to the oven cavity when the door is opened. The
oven will resume cooking once the door is closed.
DOOR OPENING AND CLOSING
To open the door (Fig. 1), turn the handle to the
horizontal position. Allow a few seconds for steam
to escape before pulling the door open.
To close the door (Fig. 1), position handle in the
horizontal position and push the door closed. Rotate
handle to the vertical position to secure door.
LOADING THE OVEN
Loading 6 or 10 Level Ovens
OPEN POSITION
Place the product to be cooked in suitable containers.
Open the door and slide into the rack guides or
place the containers securely on racks in the oven.
Close the door.
Loading 6 or 10 Level Ovens With Landing Table
And Removable Insert
Place removable insert on the landing table. Place
the product to be cooked in suitable containers and
slide into the rack guides or place the containers
securely on racks on the removable insert (Fig. 2).
Place the handle into the removable insert. Open
the door. Position the landing table directly in front
of the open oven cavity. While holding the landing
table in position with one hand, with the other hand,
release the insert and gently roll the removable insert
into the oven cavity. Make sure that the landing
table does not separate from the oven during the
transfer. Remove the handle from the insert and
close the door.
Loading 20 Level Ovens
Place the product to be cooked in suitable containers
and slide into the rack guides or place the containers
securely on racks on the trolley (Fig. 3). Place the
handle into the trolley. Open the door. Line up the
trolley with the trolley slots on the oven and push
the trolley into the oven cavity. Remove the handle
from the trolley and close the door.
CLOSED POSITION
Fig. 1
HANDLE
REMOVABLE
INSERT
LANDING
TABL E
Fig. 2
– 6 –
UNLOADING THE OVEN
Unloading 6 or 10 Level Ovens
Open door partially to allow hot air and steam to
escape. Remove the product from the rack guides
or racks in the oven. Close the door.
Unloading 6 or 10 Level Ovens With Landing
Table And Removable Insert
Open door partially to allow hot air and steam to
escape. Position the landing table (Fig. 2) directly
in front of the oven cavity. Insert the handle into the
removable insert. Using protective gear, carefully roll
the removable insert onto the landing table. Make
sure that the landing table does not separate from
the oven during transfer. Close the door.
Unloading 20 Level Ovens
Open door partially to allow hot air and steam to
escape. Insert the handle into the trolley. Using
protective gear, pull the trolley (Fig. 3) out of the
oven. Close the door.
HANDLE
TROLLEY
COOKING MODES
There are three modes of cooking available with
the Combi Oven.
Convection Mode
Convection Baking involves baking, browning,
roasting, etc. without adding steam or moisture to
the process. Hot air is circulated to maintain even
temperatures throughout the oven.
Steam Mode
Steam cooking is used for stewing, poaching,
and gentle cooking of products cooking in water.
Steam fl ows without pressure into the oven. The fan
circulates the steam to all parts of the oven.
Combi Mode
Combi baking/steaming is used for baking, roasting,
or braising when steam needs to be added to the
oven during a convection baking operation.
CONTROL PANEL
Fig. 3
The control panel (Fig. 4) has a screen that displays
to the user the functions in progress. All features
are displayed on the screen and adjusted by using
the buttons on the control panel.
Fig. 4
– 7 –
CONTROL PANEL BUTTONS
ON/OFF Button Press this button to turn the oven on or off.
Convection Mode
Steam Mode
Combi Mode
Program Button
Enter Button
(also used as
Humidity Injector
Button)
Press this button to set the oven to Convection Mode. The
button will illuminate to indicate it has been selected.
Press this button to set the oven to Steam Mode. The button
will illuminate to indicate it has been selected.
Press both buttons to set the oven to Combi Mode. The buttons will illuminate to indicate they have been selected.
Press this button to use an existing program or to write a
new program. (Press and hold 3 seconds to name program)
Press this button to confi rm a program selection. When used
during Convection Mode, humidity will be injected into the
oven cavity. (Press and hold 3 seconds to save recipe)
Minus Button
Plus Button
Selection Line
Button
(total of fi ve)
START/STOP
Button
Press this button to decrease setting feature such as temperature or time.
Press this button to increase setting feature such as temperature or time.
Press these buttons to select the feature displayed in the
control panel next to each Selection Line. These features will
change depending on the screen being displayed.
Press this button to start or stop a program or cooking cycle.
(Press and hold 3 seconds for preheat)
– 8 –
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