Alto-Shaam COMBITOUCH SERIES 20 20ESG Operating manual

W164 N9221 Water Street • P.O. Box 450 • Menomonee Falls, Wisconsin 53052-0450 USA
PHONE: [phone] • 800.558.8744
usa/Canada
FAX: [phone] • 800.329.8744
u.s.a. OnLY
www.alto-shaam.com
MN-29248 • 05/11
printed i n u.s.a.
Combitherm®
CombiTouch®Gas
TECHNICAL SERVICE
MANUAL
20.20esG CombiTouch 7.14esG CombiTouch

How to Use this Technical Service Manual
This manual has been compiled as a complete resource for a technician working on Combitherm CombiTouch Gas models.
It includes necessary product information and drawings, along with helpful troubleshooting procedures.
Navigation
On this document, starting with the Main Table of Contents on the following page, you may click on any item that has a
page number and quickly jump to the information you need. Note that you may Return to the Main Table of Contents from
the bottom of any Section Contents page.
Printing
From this document, you may print the Current Page or any range of pages.
Here’s a tip: Because printers vary in their capacity to handle large drawings, make a test print of one of the Wiring
Diagrams before printing the model’s section.
COMBITHERM COMBITOUCH GAS TECHnICAl S ERvICE M AnUAl • i

Table of ConTenTs
COMBITHERM COMBITOUCH GAS TECHnICAl S ERvICE M AnUAl • ii
HOW TO USE THIS TECHNICAL
SERVICE MANUAL i
TABLE OF CONTENTS ii
COMBITOUCH CONTROL INTRODUCTION 1
CONTROL PANEL IDENTIFICATION 2
FACTORY DEFAULT SETTINGS 6
SAFETY PRECAUTIONS 7
OPERATION MODES
Steam 8
Combination 10
Convection 12
Retherm 14
Core Temperature Probe 16
Core Temperature - Delta-T 17
AUXILIARY FUNCTIONS
Preheating 18
Gold-n-Brown™ 18
Cool-Down Feature 18
Reduced Fan Speed 19
Reduced Power 19
Multi-shelf Timer 19
Steam Injection 19
CombiSmoker™ Procedures 20
PREPROGRAMMED RECIPES
Using Preprogrammed Recipes 22
Recipe Programming 23
Preprogrammed Bakery Recipes 24
Preprogrammed Convenience
Product Recipes 25
Preprogrammed Fish & Seafood Recipes 27
Preprogrammed Meat Recipes 28
Preprogrammed Miscellaneous Recipes 30
Preprogrammed Poultry Recipes 31
Preprogrammed Vegetable Recipes 32
HACCP ACCESS 34
CLEANING & MAINTENANCE
Cleaning Menus 35
Preventive Maintenance 36
Food Trolley Cleaning 36
Protecting Stainless Steel Surfaces 37
Cleaning Agents 37
Cleaning Materials 37
Daily Gasket Cleaning 38
Probe Usage and Cleaning 38
Daily Oven Cleaning 38
Daily Steam Generator Flush 38
Regular Decalcification 38
Monthly Cleaning 38
Combitherm Oven Cleaner Precautions 39
Steam Generator Flush 39
Decalcification 39
TROUBLE SHOOTING
Emergency Operation Mode 40
Error Codes 42
COMBITHERM PARTS
Service Parts 47
COMBITHERM WIRING DIAGRAMS
Index 78

INTRODUCTION
1
COMBITOUCH®CONTROL
The Combitherm CombiTouch control features a simple,
graphics-based control panel that commands all the
oven functions. Access up to 250 of your recipes that
are identied by your own uploaded pictures. Manual
cooking by time and temperature also are easily done with
the CombiTouch control.
Intuitive interface - The Alto-Shaam CombiTouch offers
a simple interface that commands
all of the Combitherm’s cooking
functions. As the name implies, it
is fully operable by touch.
Graphic controls - The highly
visual graphic-based control
overcomes language barriers while
the simple, logical procedures
ensure that correct steps are
followed every time.
An excellent memory - Access
up to 250 of your recipes that are
identied by your own uploaded
pictures. The Combitherm
with CombiTouch also comes
standard with more than 100 pre-
programmed recipes and photos,
covering most commonly prepared food items.
Standard HACCP - The Combitherm with CombiTouch
includes a standard downloadable HACCP function.
Six levels of Gold-n-Brown™ - Six precise and consistent
browning levels are available with the CombiTouch. The
exclusive Gold-n-Brown feature gives the operator the
ability to achieve the ideal cooking environment for the
ideal nish.
Superior baking - The new two-speed reversing fan
provides excellent and consistent
baking results. A moisture
injection feature provides perfect
sheen and crust on breads and
pastry items.
Multi-shelf timers - Track cooking
time of either seven or 10 different
food items (depending on oven
size) in the same oven with multi-
shelf timers. Time is tracked in
minutes and seconds.
On-board diagnostics - The
CombiTouch system includes
on-board diagnostic functionality
with results displayed right on the
touch screen.
Reduced energy setting - CombiTouch features
an interactive control display with reduced energy setting.
STEAM MODE
COMBINATION MODE
CONVECTION MODE
RETHERM MODE
ECOSMART®TECHNOLOGY
The Alto-Shaam CombiTouch
Combitherm combination oven/steamer
employs Ecosmart operating efficiencies
in the design and application of all
operating and programming functions.
Ecosmart operational characteristics include the use
of a water barrier to close the oven compartment to
the outside air. While maintaining a non-pressurized
atmosphere, the primary purpose of the Ecosmart
system is to prevent the steam and heat generated
within the oven compartment from freely escaping
to the outside.
The Ecosmart design displaces the air within the
cooking compartment and achieves a higher level
of steam saturation that offers quick-steaming at
temperatures above 212°F (100°C).
This guide is provided as an operational aid with
step-by-step instructions of the basic functions of
the Combitherm oven, along with the many other
additional features of the control.
Powerful tool - The CombiTouch control plays an important part in our continuous improvement process. New features
and abilities can be uploaded to your oven as they become available. Simply call our Service Department for assistance.

MAIN MENU
SCREEN
1 CLEANING MODE
2 DOWNLOAD/UPLOAD FILES
3 SETTINGS
4 SERVICE MODE
(PASSWORD PROTECTED)
OPERATING INSTRUCTIONS
2
CONTROL PANEL IDENTIFICATION
UPLOAD/DOWNLOAD SCREEN
3 ADD ALL RECIPES
4 UPLOAD ALL PHOTOS
1. Cleaning Mode
Four (4) cleaning levels are available: rinse, light,
normal, and heavy-duty cleaning.
2. Download/Upload Files
Download all preprogrammed recipes (factory default
and user-programmed) and photos to a USB memory
stick. See below for more information.
3. Settings and HACCP Access
Change factory default settings. See next page for
more information.
4. Service Mode (password protected)
This mode is only available to qualied
service technicians.
5 DELETE
PHOTOS
1. Copy Recipes to Oven
Copy all recipes from USB memory stick
to oven. This will replace and overwrite
existing recipes.
2. Copy Recipes from Oven
Copy all recipes from oven to USB memory stick
3. Add Recipes to Oven
Copy all recipes from USB memory stick to the
oven. This will add the recipes to the beginning
of the existing recipe list.
4. Copy Photos to Oven
Upload photo les from a USB memory stick to
oven for user-programmed recipes
5. Delete Photos on Oven
Delete specic photo les used in the
programmed recipes on oven
6. Add Sounds
6 ADD SOUNDS
1 DOWNLOAD RECIPES 2 UPLOAD
RECIPES
RECIPE MENU
When the oven is powered on, the Recipe Menu is the
rst screen you will see. This allows quick access to
begin the cooking process. As a rst time user, you
may want to personalize your CombiOven to reect the
settings you are most comfortable with.
Return to Previous Screen - Press the red arrow to
access the Main Menu screen.

OPERATING INSTRUCTIONS
CONTROL PANEL IDENTIFICATION
OPERATING INSTRUCTIONS
SETTINGS SCREEN
1 FAHRENHEIT OR CELSIUS
3 NUMBER OF SHELVES FOR
MULTI-SHELF TIMER 4 MULTI-SHELF TIMER FORMAT
5 DEFAULT MEMO
6 DISPLAY SETTINGS
7 RETURN TO PREVIOUS SCREEN
2 TIMER FORMAT
1. Fahrenheit or Celsius Function - Choose
temperature format.
2. Timer Format - Display time as
HOURS:MINUTES:SECONDS or HOURS:MINUTES.
3. Multi-shelf Timer Number of Shelves -
Choose the default number shelves in the oven to be
used by the multi-shelf timer.
4. Multi-shelf Timer Format - Display
MINUTES:SECONDS or MINUTES only in timer.
5. Default Memo - Reverts all settings to factory
defaults. Clears all user-input times and temperatures
except those in programmed recipes.
6. Display Settings - Choose to display text or
image assigned to a recipe.
7. Return to Previous Screen - Return to previous
screen when nished adjusting settings.
8. Forward to Next Screen - Advance to next screen to
review additional settings.
9. Sound/Alarm Settings - Change alarm sounds
and volume.
10. Touchscreen Brightness - Adjust brightness
of Touchscreen.
11. Lock/Unlock Recipes - Password protect
preprogrammed recipes.
12. Set/Change Date & Time - Set or change oven
time and date settings.
13. HACCP Data - Review data collected or
download data to a USB drive.
3
9 SOUND SETTINGS 10 TOUCH SCREEN BRIGHTNESS
11 LOCK/UNLOCK RECIPES 12 SET/CHANGE DATE & TIME
13 HACCP DATA
8 FORWARD TO NEXT SCREEN

OPERATING INSTRUCTIONS
CONTROL PANEL IDENTIFICATION
4
1 POWER ON KEY
2 STEAM MODE
6 TEMPERATURE
7 TIME
8 CORE TEMPERATURE
9 PREHEAT
12 REDUCED POWER MODE
16 GO TO PREVIOUS SCREEN
10 COOL DOWN
15 FAN SPEED
20 MULTI-SHELF TIMER
19 FIND RECIPE
17 CLEANING MODE
18 ADD RECIPE
11 START/STOP ICON
13 GOLD-N-BROWN MODE
4 CONVECTION MODE
5 RETHERM MODE
3 COMBINATION MODE
14 SMOKING MODE (OPTIONAL)
22 DELTA-T (ONLY VISIBLE
IN CERTAIN MODES)
1 POWER OFF KEY

MAIN MENU ICONS
1. Power ON key
Activates power to the oven and automatically lls the
steam generator equipped models with water that will
heat to a stand-by mode temperature of 188°F (77°C).
2. Steam Mode
The oven will operate in the steam mode at a
temperature range of 85°F to 250°F (30°C to 121°C).
• Automatic steaming at 212°F (100°C) factory-set
default.
• Quick steaming between 213°F and 250°F (101°C
and 121°C).
• Low temperature steaming between 85°F and 211°F
(29°C and 99°C).
3. Combination Mode
Selection key for cooking with a combination of steam
and convection heat. Can be set between 212°F to 485°F
(100°C and 252°C).
4. Convection Mode
Selection key for convection cooking without steam at a
temperature range of 85°F to 485°F (29°C to 252°C).
5. Retherm Mode
Food rethermalization or reheating mode will operate
with automatic steam injection at a temperature range
of 245°F to 320°F (120°C to 160°C).
6. Temperature
Used to set the required cooking temperature, to recall
the set cooking temperature, or to check the actual oven
temperature.
7. Time
Used to set the required cooking time or recall the set
cooking time.
8. Core Temperature
Used to set the required internal product temperature,
to recall the internal product temperature set by the
operator, or to display the current internal temperature
of the product.
9. Preheat Mode
Preheats the oven cavity to a temperature set by user.
10. Cool Down Mode
Lowers temperature of the oven cavity at an
accelerated pace to temperature set by user.
11. Start/Stop
Initiates all cooking mode functions and programmed
procedures stored in memory. Stops an activated
cooking mode or programmed procedure currently
in progress.
AUXILIARY FUNCTION ICONS
12. Reduced Power Mode
Used to reduce kitchen power peaks and
energy consumption.
13.
Gold-N-Brown Mode
This indicator will illuminate when the browning
function is set by the operator in a timed or
programmed cooking cycle in any mode. Level 1
provides least amount of browning, level 6 the most.
14. Smoking Mode (optional)
This indicator will illuminate when the smoking
function is set by the operator in a timer, probe or
programmed cooking cycle in either convection mode
or combination mode.
15. Fan Speed
This indicator will illuminate whenever the operator
sets a reduced fan speed to protect products affected
by high-velocity air movement.
16. Return to Previous Menu
17. Cleaning Mode
Four (4) cleaning levels are available: rinse, light,
normal, and heavy-duty cleaning.
18. Add Recipe
Used to create, change, duplicate, and delete
programmed menus.
19. Find Recipe
Access a menu list of all stored cooking programs.
20. Multi-shelf Timer
Use separate timers for one or more shelves in the
oven compartment.
21. Steam Injection (not shown on illustration)
Press to add moisture in any cooking mode. Steam will
inject into the cavity as long as the icon is touched.
22. Delta-T Core Temperature (only visible in certain
modes) Cook by probe. Mode automatically adjusts
cooking temperature in proportion to the internal
temperature of the product.
OPERATING INSTRUCTIONS
5
CONTROL PANEL IDENTIFICATION

COMBITOUCH FACTORY DEFAULT SETTINGS
COOKING MODE OVEN TEMPERATURE CORE TEMPERATURE COOKING TIME
Steam 212°F
(100°C)
160°F
(70°C) 25 minutes
Combination Steam 350°F
(175C)
160°F
(70°C) 60 minutes
Convection 350°F
(175°C)
160°F
(70°C) 30 minutes
Retherm 275°F
(135°C)
160°F
(70°C) 5 minutes
Preheat 350°F
(175°C) N/A N/A
Cool Down 212°F
(100°C) N/A N/A
Delta T 120°F
(50°C)
170°F
(75°C) N/A
6
OPERATING INSTRUCTIONS

OPERATING INSTRUCTIONS
7
NOTE: Automatic steam venting is a standard safety
feature built into all Combitherm oven models.
This feature vents all steam from the oven
compartment immediately before cooking time
expires or set probe temperature is reached.
This function is provided in all programmed
and timed production when operating in any
Steam, Combination, Convection, and Retherm
cooking mode. Automatic steam venting does
not function if the oven door is opened before
time expires or when the oven has been set to
continuous operation.
NOTE: Use authorized combitherm oven cleaner only.
unauthorized cleaning agents may discolor or
harm interior surfaces of the oven. Read and
understand label and material safety data sheet
before using the oven cleaner.
FOR OPERATOR SAFETY
NOTE AND OBSERVE ALL SAFETY PRECAUTIONS
LOCATED THROUGHOUT THIS GUIDE
CAUTION
METAL PARTS OF THIS EQUIPMENT
BECOME EXTREMELY HOT WHEN
IN OPERATION. TO AVOID BURNS,
ALWAYS USE HAND PROTECTION
WHEN OPERATING THIS APPLIANCE.
DANGER
AT NO TIME SHOULD THE INTERIOR
OR EXTERIOR BE STEAM CLEANED,
HOSED DOWN, OR FLOODED WITH
WATER OR LIQUID SOLUTION OF
ANY KIND. DO NOT USE WATER JET
TO CLEAN.
SEVERE DAMAGE OR
ELECTRICAL HAZARD
COULD RESULT.
WARRANTY BECOMES VOID IF
APPLIANCE IS FLOODED
HOT STEAM CAUSES BURNS
ROTATE THE DOOR HANDLE TO THE FIRST OPEN
ROTATION POSITION ONLY. WAIT UNTIL THE
STEAM IS VENTED BEFORE FULLY OPENING THE
DOOR.
DO NOT HANDLE PANS CONTAINING LIQUID
OR SEMILIQUID PRODUCTS POSITIONED
ABOVE THE EYE LEVEL OF THE OPERATOR.
SUCH PRODUCTS CAN SCALD AND CAUSE
SERIOUS INJURY.
DO NOT USE THE ATTACHED HAND-HELD
HOSE TO SPRAY ANYTHING OTHER THAN
THE INTERIOR OF THE COMBITHERM OVEN
COMPARTMENT.
DO NOT USE THE SPRAY HOSE ON
THE SURFACE OF A HOT COOKING
COMPARTMENT. ALLOW THE OVEN TO COOL
TO A MINIMUM OF 150°F (66°C).
IMPORTANT SAFETY PRECAUTIONS

STEAM MODE
The Steam mode provides the operator with the ability
to steam, poach, or blanch. This mode will automatically
steam at the boiling point of water; quick-steam above the
boiling point for faster cooking results; or low temperature
steam, below the boiling point, for more delicate products
such as pâté, mousse, seafood, or custard.
PRESS ON BUTTON TO POWER OVEN ON.
PRESS THE STEAM MODE ICON.
Automatic Steam temperature of 212°F (100°C)
will appear in the display. The last set time or
oven control default setting for time will appear
in the display.
PRESS THE START ICON TO STEAM AT THE
DISPLAYED SETTINGS.
TO CHANGE THE DISPLAYED SETTINGS:
TOUCH THE DISPLAYED TEMPERATURE.
The cooking temperature will appear at the top of
the temperature selection window. Type in desired
temperature or use up and down arrows to adjust
temperature. When nished, touch the green checkmark
key to conrm change.
• Automatic Steaming 212°F (100°C)
• Quick Steaming 213°F to 250°F (101°C to 121°C)
• Low Temperature Steaming 85°F to 211°F (29°C to 99°C)
TO COOK BY TIME:
TOUCH THE DISPLAYED TIME.
The cooking time will appear at the top the time selection
window. Type in desired time period or use up and down
arrows to adjust time. When nished, touch the green
checkmark key to conrm change.
Or, to set Continuous Operation mode, type in --:-- and
touch the green checkmark key to conrm.
TO COOK BY PRODUCT CORE TEMPERATURE:
TOUCH THE PROBE ICON.
The previously set core temperature or oven control
default setting will appear highlighted within the oven
display. Touch the displayed core temperature. The
internal product core temperature will appear at the top
of the temperature selection window. Type in desired
internal product core temperature or use up and down
arrows to adjust temperature. When nished, touch the
green checkmark key to conrm change.
Attach removable probe before activating core
temperature function, and insert into product.
PRESS THE GREEN START ARROW ICON TO
BEGIN COOKING IN STEAM MODE.
• The temperature and remaining cooking time will
appear in the display.
• If cooking by probe, the actual internal product
temperature will appear next to the icon during
operation. To change the set value for core temperature,
press the temperature next to the icon and make
changes as required.
When the cooking time has expired or the operator set
internal temperature has been reached, an alarm will
sound indicating the end of the operating mode.
• To stop the buzzer, press the red stop key or open
the oven door.
TO STOP COOKING PROGRAM AT ANY TIME,
PRESS RED STOP BUTTON.
8
OPERATING INSTRUCTIONS

STEAM MODE CHEF OPERATING TIPS
OPERATING INSTRUCTIONS
9
This mode will steam a full or partial load of a single
product, or multiple products without transfer of avors.
When steaming multiple products, however, individual
product cooking times must be taken into consideration.
The non-pressurized atmosphere of the Combitherm
also provides the ability to open the door during the
steam mode in order to monitor products more closely
throughout the steaming process.
STEAM
Perforated, 2-1/2" deep pans (65mm)
are particularly suitable for use in
this program mode. These pans will
provide a shorter cooking time and
will prevent product over-cooking at
the bottom of the pan.
Separate ice-encrusted vegetables
before steaming to assure
even cooking.
A variety of products can be steamed
at the same time but attention must
be paid to the different cooking times
required for each food product.
HIGH TEMP STEAMING
High temperature steaming is
suitable for hearty, root-type
vegetables such as potatoes, legumes,
and cabbage.
High temperature steaming
provides a cooking time which is
approximately 10-percent shorter
than the regular steam mode
temperature of 212°F (100°C).
Set the steam cooking temperature
between 221°F (105°C) and 230°F
(110°C) for small loads and between
230°F (110°C) and 250°F (121°C) for
full loads.
LOW TEMP STEAM
The low temperature steam mode
will function whenever the oven
compartment temperature is below
212°F (100°C).
It will take longer to steam products
using the low temperature
steam mode.
Steaming sausages in low
temperature steam prevents cracked
or peeling skins.
Use low temperature steam for
delicate foods such as shrimp, sh,
seafood, and crème caramel.
For best results, low temperature
steam all delicate food items at a
temperature of 210°F (99°C)
or below.

COMBINATION MODE
The Combination mode will prove to be the most versatile
and widely used mode the Combitherm oven has to offer.
It will produce the best possible results on the widest
variety of products — all within the shortest period of
time. The unique control function of this mode enables
the operator to roast or bake with a combination of steam
and convection heat. In addition to shorter cooking times,
this combination of steam and heat offers less product
shrinkage and more moisture retention than obtained in a
standard convection oven.
PRESS ON BUTTON TO POWER OVEN ON.
PRESS THE COMBINATION MODE ICON.
The last set values or oven control default setting for
temperature and time will appear in the display.
PRESS THE START ICON TO COOK AT THE
DISPLAYED SETTINGS.
TO CHANGE THE DISPLAYED SETTINGS:
TOUCH THE DISPLAYED TEMPERATURE.
The cooking temperature will appear at the top of
the temperature selection window. Type in desired
temperature or use up and down arrows to adjust
temperature. When nished, touch the green checkmark
key to conrm change.
• Cooking temperature range: 212 to 485 °F (100 to 252°C)
TO COOK BY TIME:
TOUCH THE DISPLAYED TIME.
The cooking time will appear at the top the time selection
window. Type in desired time period or use up and down
arrows to adjust time. When nished, touch the green
checkmark key to conrm change.
Or, to set Continuous Operation mode, type in --:-- and
touch the green checkmark key to conrm.
TO COOK BY PRODUCT CORE TEMPERATURE:
TOUCH THE PROBE ICON.
The previously set core temperature or oven control
default setting will appear highlighted within the oven
display. Touch the displayed core temperature. The
internal product core temperature will appear at the top
of the temperature selection window. Type in desired
internal product core temperature or use up and down
arrows to adjust temperature. When nished, touch the
green checkmark key to conrm change.
Attach removable probe before activating core
temperature function, and insert into product.
PRESS THE GREEN START ARROW ICON TO
BEGIN COOKING IN COMBINATION MODE.
• The temperature and remaining cooking time will
appear in the display.
• If cooking by probe, the actual internal product
temperature will appear next to the icon during
operation. To change the set value for core temperature,
press the temperature next to the icon and make
changes as required.
PRESS FOR STEAM INJECTION AT ANY TIME
DURING COOKING. Steam will inject into the
cavity as long as the icon is touched.
When the cooking time has expired or the operator set
internal temperature has been reached, an alarm will
sound indicating the end of the operating mode.
• To stop the buzzer, press the red stop key or open
the oven door.
TO STOP COOKING PROGRAM AT ANY TIME,
PRESS RED STOP BUTTON.
10
OPERATING INSTRUCTIONS

COMBINATION MODE CHEF OPERATING TIPS
OPERATING INSTRUCTIONS
11
The Combination mode injects the optimum amount of
steam automatically. There is no need to select moisture
levels. Foods do not dry out. Flavors are retained with no
transfer of avors when mixing product loads.
Due to automatic steam adjustment, the door can be
opened at any time during a cooking operation. Be
certain to observe the safety warning when opening the
oven door.
The Combination mode is particularly efcient when
used for baking, broiling, grilling, stewing, braising,
and roasting.
When using the Combination mode, cooking temperatures
can be reduced 10- to 20-percent below the temperatures
used for conventional cooking methods.
Cooking time will be reduced approximately 40-percent
when cooking at the same temperature used for
convection oven cooking and up to 50- to 60-percent less
time when cooking at the same temperature used for a
conventional oven.
Food browning in the Combitherm begins at a cooking
temperature of approximately 250°F (120°C).
A higher cooking temperature results in heavier browning
but also results in greater product weight loss. To achieve
additional browning use the Moisture Vent Key or set
Gold-n-Brown into the product procedure. Gold-n-Brown
is particularly useful for adding color to high moisture
products such as chicken and other poultry items or
for additional browning of full loads and other
moist products.
The Combination mode provides even browning without
the necessity to turn the pans.
For more even cooking, do not cook in pans deeper than
4" (100mm).

CONVECTION MODE
The Convection mode operates with hot circulated air
within a temperature range of 85° to 485°F (29 to 252°C).
For many applications, better results may be
achieved with the Combination mode; therefore, the
operator may want to consider using the Convection
mode on a more limited basis.
PRESS ON BUTTON TO POWER OVEN ON.
PRESS THE CONVECTION MODE ICON.
The last set values or oven control default setting for
temperature and time will appear in the display.
PRESS THE START ICON TO COOK AT THE
DISPLAYED SETTINGS.
TO CHANGE THE DISPLAYED SETTINGS:
TOUCH THE DISPLAYED TEMPERATURE.
The cooking temperature will appear at the top of
the temperature selection window. Type in desired
temperature or use up and down arrows to adjust
temperature. When nished, touch the green checkmark
key to conrm change.
• Cooking temperature range: 85 to 485 °F (29 to 252°C)
TO COOK BY TIME:
TOUCH THE DISPLAYED TIME.
The cooking time will appear at the top the time selection
window. Type in desired time period or use up and down
arrows to adjust time. When nished, touch the green
checkmark key to conrm change.
Or, to set Continuous Operation mode, type in --:-- and
touch the green checkmark key to conrm.
TO COOK BY PRODUCT CORE TEMPERATURE:
TOUCH THE PROBE ICON.
The previously set core temperature or oven control
default setting will appear highlighted within the oven
display. Touch the displayed core temperature. The
internal product core temperature will appear at the top
of the temperature selection window. Type in desired
internal product core temperature or use up and down
arrows to adjust temperature. When nished, touch the
green checkmark key to conrm change.
Attach removable probe before activating core
temperature function, and insert into product.
PRESS THE GREEN START ARROW ICON TO
BEGIN COOKING IN COMBINATION MODE.
• The temperature and remaining cooking time will
appear in the display.
• If cooking by probe, the actual internal product
temperature will appear next to the icon during
operation. To change the set value for core temperature,
press the temperature next to the icon and make
changes as required.
PRESS FOR STEAM INJECTION AT ANY TIME
DURING COOKING. Steam will inject into the
cavity as long as the icon is touched.
When the cooking time has expired or the operator set
internal temperature has been reached, an alarm will
sound indicating the end of the operating mode.
• To stop the buzzer, press the red stop key or open
the oven door.
TO STOP COOKING PROGRAM AT ANY TIME,
PRESS RED STOP BUTTON.
12
OPERATING INSTRUCTIONS

CONVECTION MODE CHEF OPERATING TIPS
OPERATING INSTRUCTIONS
13
The Convection Mode can be used to roast or bake
products needing very short cooking times or for high
moisture products such as mufns, cakes, and cookies, or
for browning the surface of the product.
The Convection mode works best with foods containing
little moisture or for very moist food which require a
dryer nished product.
For baking, preheat the Combitherm at a temperature of
325°F to 375°F (163°C to 191°C). Once preheated, reset the
temperature as required.
A higher cooking temperature results in heavier browning
but also results in greater product weight loss. To achieve
additional browning use the Moisture Vent Key or set the
Browning Feature into the product procedure.

RETHERM MODE
The Retherm mode operates with hot circulated air within
a temperature range of 245° to 320°F (120° to 160°C).
PRESS ON BUTTON TO POWER OVEN ON.
PRESS THE RETHERM MODE ICON.
The last set values or oven control default setting for
temperature and time will appear in the display.
PRESS THE START ICON TO COOK AT THE
DISPLAYED SETTINGS.
TO CHANGE THE DISPLAYED SETTINGS:
TOUCH THE DISPLAYED TEMPERATURE.
The cooking temperature will appear at the top of
the temperature selection window. Type in desired
temperature or use up and down arrows to adjust
temperature. When nished, touch the green checkmark
key to conrm change.
• Cooking temperature range: 245 to 320 °F (120 to 160°C)
TO COOK BY TIME:
TOUCH THE DISPLAYED TIME.
The cooking time will appear at the top the time selection
window. Type in desired time period or use up and down
arrows to adjust time. When nished, touch the green
checkmark key to conrm change.
Or, to set Continuous Operation mode, type in --:-- and
touch the green checkmark key to conrm.
TO COOK BY PRODUCT CORE TEMPERATURE:
TOUCH THE PROBE ICON.
The previously set core temperature or oven control
default setting will appear highlighted within the oven
display. Touch the displayed core temperature. The
internal product core temperature will appear at the top
of the temperature selection window. Type in desired
internal product core temperature or use up and down
arrows to adjust temperature. When nished, touch the
green checkmark key to conrm change.
Attach removable probe before activating core
temperature function, and insert into product.
PRESS THE GREEN START ARROW ICON TO
BEGIN COOKING IN COMBINATION MODE.
• The temperature and remaining cooking time will
appear in the display.
• If cooking by probe, the actual internal product
temperature will appear next to the icon during
operation. To change the set value for core temperature,
press the temperature next to the icon and make
changes as required.
PRESS FOR STEAM INJECTION AT ANY TIME
DURING COOKING. Steam will inject into the
cavity as long as the icon is touched.
When the cooking time has expired or the operator set
internal temperature has been reached, an alarm will
sound indicating the end of the operating mode.
• To stop the buzzer, press the red stop key or open
the oven door.
TO STOP COOKING PROGRAM AT ANY TIME,
PRESS RED STOP BUTTON.
14
OPERATING INSTRUCTIONS

RETHERM MODE CHEF OPERATING TIPS
OPERATING INSTRUCTIONS
15
Since plated meals consist of dissimilar products, there
are several important factors to consider in order to
produce the nest results. Product density (compactness),
thickness, quantity of product on each plate, and quantity
of plates all relate to the length of time necessary to
reheat. Again, experience is the best method to determine
reheating time. Once the time has been determined and
recorded for a specic meal, the results will be consistent
for future reheating times.
HELPFUL HINTS FOR REHEATING ON THE
PLATE
• ALL FOOD COMPONENTS ON THE PLATE SHOULD
BE OF SIMILAR DENSITIES.
• ALL FOOD COMPONENTS ON THE PLATE SHOULD
BE SIMILAR IN THICKNESS.
• ARRANGE ALL FOOD COMPONENTS EVENLY ON
THE PLATE.
• AVOID EXCESSIVE OVERLAPPING OF PRODUCT.
• SAUCES MUST BE HEATED AND ADDED TO
PRODUCT AFTER REHEATING.
• A MIXED VARIETY OF MEALS CAN BE REHEATED
AT THE SAME TIME.
À LA CARTE RETHERMALIZATION
À la carte rethermalization is designed to take a single
plate from a refrigerated temperature to serving
temperature for immediate service. Plates are prepared
in advance, covered, and refrigerated. Preheat the
Combitherm oven. Remove plate from refrigeration and
place in the oven at 275°F (135°C) for an uncovered plate
or 300°F (150°C) for a covered plate. Plates with meat
components will take more time than plates containing
all vegetable components. Follow internal temperature
requirements for reheating and allow for override time.
After reheating, remove the plate from the oven, add any
sauces, garnish, and serve. This process can be repeated
as required.
For the most efcient continuous service, it is suggested
that the Combitherm oven be dedicated to the
rethermalization process during serving hours.
BANQUET RETHERMALIZATION
Banquet rethermalization is designed for high volume, full
or partial load (multiple plate) reheating.
Plates are assembled in advance, covered, and refrigerated
or loaded on the roll-in cart and refrigerated. Preheat
the Combitherm oven at 275°F (135°C) for uncovered
plates or 300°F (150°C) for covered plates. Remove plates
or the roll-in cart from refrigeration, load in the oven
and set timer as required. Follow internal temperature
requirements for reheating and allow for override time.
Remove the plates or roll-in cart from the Combitherm.
Placing our thermal blanket cover over the roll-in cart
keeps food hot for 20 to 40 minutes, depending on the
type of food, retherm temperature, and environmental
factors. For longer holding times, roll the cart into the
CombiMate™ companion holding cabinet.
RETHERMALIZING PREFABRICATED AND
VACUUM-PACKED FROZEN FOODS
For bulk product rethermalization, completely defrost
product bags in walk-in cooler. DO NOT REMOVE
PRODUCT FROM THE BAG. Load thawed bags in
preheated oven and rethermalize in the Low Temperature
Steam mode until the required internal temperature is
reached. Place rethermalized bags in a preheated
holding cabinet set at 140° to 165°F (60° to 74°C) until
ready for service.
For large volume on-the-plate regeneration, defrost
bags in walk-in cooler. Open bags and plate per menu
requirements in a (maximum) 55°F (13°C) refrigerated
room. Place on Alto-Shaam roll-in cart (trolley), and roll
into Combitherm oven preheated at 275°F (135°C).
Regenerate in the Convection mode for 3 to 5 minutes.
Switch to the Retherm mode for an additional 3 minutes
or more if required. Placing our thermal blanket cover
over the roll-in cart keeps food hot for 20 to 40 minutes,
depending on the type of food, retherm temperature, and
environmental factors. For longer holding times, roll the
cart into the CombiMate™ companion holding cabinet.
PLATE COVERS MUST BE USED FOR ON-THE-PLATE REGENERATION.

CORE TEMPERATURE PROBE MODE
As an alternative to timer operation, the Core
Temperature Probe mode can be used in conjunction
with any program mode to cook by sensing internal
product temperature using the included probe. For a more
accurate internal temperature, an optional, specialized,
Combitherm product probe senses temperature from four
strategic points and displays a temperature average.
PRESS ON BUTTON TO POWER OVEN ON.
ATTACH REMOVABLE PROBE BEFORE ACTIVATING
CORE TEMPERATURE FUNCTION, AND INSERT
INTO PRODUCT.
The probe must be inserted so that the tip is positioned
in the center of the food mass. For liquid or semi-liquid
foods, suspend the probe in the center of the product and
secure the probe wire to the edge of the container.
PRESS THE REQUIRED COOKING MODE ICON.
The last set values or oven control default setting for
temperature and time will appear in the display.
PRESS THE START ICON TO COOK AT THE
DISPLAYED SETTINGS, OR
TOUCH THE DISPLAYED TEMPERATURE.
The cooking temperature will appear at the top of
the temperature selection window. Type in desired
temperature or use up and down arrows to adjust
temperature. When nished, touch the green checkmark
key to conrm change.
TOUCH THE PROBE ICON.
The previously set core temperature or default setting
will appear highlighted within the oven display. Touch
the displayed core temperature. The internal product core
temperature will appear at the top of the temperature
selection window. Type in desired internal product
core temperature or use up and down arrows to adjust
temperature. When nished, touch the green checkmark
key to conrm change.
PRESS THE GREEN START ARROW ICON TO
BEGIN COOKING.
• The actual internal product temperature will appear
next to the icon during operation. To change the set
value for core temperature, press the temperature next
to the icon and make changes as required.
PRESS FOR STEAM INJECTION AT ANY TIME
DURING COOKING. Steam will inject into the
cavity as long as the icon is touched.
When the operator-set internal temperature has been
reached, an alarm will sound indicating the end of the
operating mode.
• To stop the buzzer, press the red stop key or open
the oven door.
TO STOP COOKING PROGRAM AT ANY TIME,
PRESS RED STOP BUTTON.
16
OPERATING INSTRUCTIONS

DELTA-T CORE TEMPERATURE COOKING MODE
OPERATING INSTRUCTIONS
17
This special program function cooks by internal product
temperature with the use of the probe. Unlike the
standard core temperature mode however, the Delta-T
oven temperature automatically increases in direct
proportion to the internal temperature of the product. The
Delta-T mode cooks with convection heat but provides a
more gentle method of cooking. Browning occurs toward
the end of the cooking cycle.
PRESS THE ON BUTTON TO POWER OVEN ON.
ATTACH REMOVABLE PROBE BEFORE ACTIVATING
CORE TEMPERATURE FUNCTION, AND INSERT INTO
PRODUCT.
The probe must be inserted so that the tip is positioned
in the center of the food mass. For liquid or semi-liquid
foods, suspend the probe in the center of the product and
secure the probe wire to the edge of the container.
PRESS THE REQUIRED COOKING MODE ICON.
The last set values or oven control default setting for
temperature and time will appear in the display.
TOUCH THE PROBE ICON.
The previously set core temperature or default setting
will appear highlighted within the oven display. Touch
the displayed core temperature. The internal product core
temperature will appear at the top of the temperature
selection window. Type in desired internal product
core temperature or use up and down arrows to adjust
temperature. When nished, touch the green checkmark
key to conrm change.
PRESS THE DELTA T ICON THAT APPEARS IN
THE LOWER LEFT CORNER OF THE TOUCH
SCREEN.
PRESS THE GREEN START ARROW ICON TO
BEGIN COOKING.
• The actual internal product temperature will appear
next to the icon during operation. To change the set
value for core temperature, press the temperature next
to the icon and make changes as required.
PRESS FOR STEAM INJECTION AT ANY TIME
DURING COOKING. Each push of the icon will
release one pulse of steam.
When the operator-set internal temperature has been
reached, a buzzer will sound indicating the end of the
operating mode.
• To stop the buzzer, press the red stop key or open
the oven door.
TO STOP COOKING PROGRAM AT ANY TIME,
PRESS RED STOP BUTTON.