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.
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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