Rational iVario 2-XS Service manual

iVario®
Original instructions for use

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
REMOVE THIS COVER. NO USER-SERVICEABLE PARTS INSIDE.
REPAIR SHOULD BE DONE BY AUTHORIZED SERVICE
PERSONNEL ONLY.

Original instructions for use 3 / 100
Table of contents
1 Introduction ................................................................................................................................................................................................. 8
1.1 Unit help function......................................................................................................................................................................................... 8
1.2 Product guarantee........................................................................................................................................................................................ 8
1.3 Target audience............................................................................................................................................................................................. 8
1.4 Intended use................................................................................................................................................................................................... 8
1.5 Using these instructions for use............................................................................................................................................................... 8
1.5.1 Explanation of symbols.................................................................................................................................................................... 8
1.5.2 Explanation of pictograms.............................................................................................................................................................. 9
1.5.3 Explanation of warnings.................................................................................................................................................................. 9
1.5.4 Illustrations.......................................................................................................................................................................................... 9
1.5.5 Technical changes.............................................................................................................................................................................. 9
2 The iVario...................................................................................................................................................................................................... 10
3 General safety information....................................................................................................................................................................... 11
3.1 Personal protective equipment ................................................................................................................................................................ 12
4 Working with the unit ............................................................................................................................................................................... 13
4.1 Initial start-up ................................................................................................................................................................................................ 13
4.2 Switching the unit on and off.................................................................................................................................................................... 13
4.3 Home screen.................................................................................................................................................................................................. 14
4.3.1 General view and focus view ......................................................................................................................................................... 15
4.3.2 Favorites .............................................................................................................................................................................................. 15
4.3.3 Date, time, status............................................................................................................................................................................... 16
4.3.4 Help function ...................................................................................................................................................................................... 16
4.3.5 Actions.................................................................................................................................................................................................. 17
4.4 Interacting with the unit ............................................................................................................................................................................. 17
4.4.1 Gestures ............................................................................................................................................................................................... 17
4.4.2 Central selection knob ..................................................................................................................................................................... 17
4.5 Fill levels .......................................................................................................................................................................................................... 18
4.5.1 Fill levels for pressure cooking (optional)................................................................................................................................... 18
4.6 Maximum load capacities ........................................................................................................................................................................... 18
4.7 Opening and shutting the pan lid............................................................................................................................................................. 19
4.8 Filling the pan using the automatic water intake ................................................................................................................................ 19
4.9 Tilting and lowering the pan...................................................................................................................................................................... 20
4.10 Opening and shutting the pan valve ....................................................................................................................................................... 21
4.11 Inserting core temperature probes ......................................................................................................................................................... 22
4.12 Using the hand shower............................................................................................................................................................................... 24
4.13 Adjusting the height of the unit (optional) ............................................................................................................................................ 25
5 Intelligent cooking - iCookingSuite........................................................................................................................................................ 27
5.1 Modes and cooking methods.................................................................................................................................................................... 27
5.2 Intelligent cooking paths............................................................................................................................................................................ 28
5.2.1 Meat ...................................................................................................................................................................................................... 28
5.2.2 Seafood ................................................................................................................................................................................................ 29
5.2.3 Vegetables and side dishes............................................................................................................................................................. 29

4 / 100 Original instructions for use
5.2.4 Egg dishes............................................................................................................................................................................................ 30
5.2.5 Soups and sauces............................................................................................................................................................................... 31
5.2.6 Milk and desserts............................................................................................................................................................................... 31
5.2.7 Finishing............................................................................................................................................................................................... 32
5.3 Prerequisites, information and warnings .............................................................................................................................................. 32
5.4 Cooking food intelligently ......................................................................................................................................................................... 34
5.4.1 Accessing intelligent cooking paths............................................................................................................................................. 34
5.4.2 Starting an intelligent cooking path............................................................................................................................................. 34
5.5 Fine-tuning your results ............................................................................................................................................................................. 35
5.5.1 Cooking parameters......................................................................................................................................................................... 35
5.5.2 Prompts................................................................................................................................................................................................ 36
5.5.3 Information ......................................................................................................................................................................................... 37
5.5.4 Options................................................................................................................................................................................................. 38
5.6 Monitoring an intelligent cooking path.................................................................................................................................................. 39
5.7 Canceling an intelligent cooking path..................................................................................................................................................... 39
6 Manual cooking ........................................................................................................................................................................................... 40
6.1 Prerequisites, information and warnings .............................................................................................................................................. 40
6.2 Fine-tuning your results ............................................................................................................................................................................. 40
6.2.1 Cooking parameters......................................................................................................................................................................... 40
6.2.2 Additional functions ......................................................................................................................................................................... 41
6.2.3 Prompts and information................................................................................................................................................................ 41
6.3 Boil .................................................................................................................................................................................................................... 41
6.3.1 Temperature range ........................................................................................................................................................................... 41
6.3.2 Boil food............................................................................................................................................................................................... 42
6.4 Pan-fry............................................................................................................................................................................................................. 42
6.4.1 General safety information............................................................................................................................................................. 42
6.4.2 Temperature range ........................................................................................................................................................................... 43
6.4.3 Roasting food ..................................................................................................................................................................................... 43
6.5 Deep-fry.......................................................................................................................................................................................................... 44
6.5.1 General safety information............................................................................................................................................................. 44
6.5.2 Restricted scope of functions ........................................................................................................................................................ 44
6.5.3 Temperature range ........................................................................................................................................................................... 44
6.5.4 Melting solid fat ................................................................................................................................................................................. 44
6.5.5 Deep-frying food .............................................................................................................................................................................. 44
6.6 Cancel manual cooking ............................................................................................................................................................................... 45
7 Pressure cooking (optional)...................................................................................................................................................................... 47
7.1 General safety information........................................................................................................................................................................ 47
7.2 Prompts........................................................................................................................................................................................................... 47
7.3 Information..................................................................................................................................................................................................... 48
7.4 Options............................................................................................................................................................................................................ 48
7.5 Pressure cooking .......................................................................................................................................................................................... 49
8 iZoneControl................................................................................................................................................................................................ 50
8.1 Tickets.............................................................................................................................................................................................................. 50
8.1.1 Preset tickets ...................................................................................................................................................................................... 50

Original instructions for use 5 / 100
8.1.2 Creating your own tickets .............................................................................................................................................................. 51
8.1.3 Editing the ticket board ................................................................................................................................................................... 51
8.2 Pan division .................................................................................................................................................................................................... 53
8.2.1 Pre-set pan divisions........................................................................................................................................................................ 53
8.2.2 Creating your own pan divisions.................................................................................................................................................. 53
8.2.3 Dividing the pan into zones............................................................................................................................................................ 55
8.3 Pan assignments ........................................................................................................................................................................................... 56
8.3.1 Preset pan layout............................................................................................................................................................................... 56
8.3.2 Creating your own pan allocations .............................................................................................................................................. 56
8.4 Cooking with iZoneControl....................................................................................................................................................................... 57
8.4.1 Manual operating modes ................................................................................................................................................................ 57
8.4.2 Placing tickets..................................................................................................................................................................................... 57
9 Programming mode ................................................................................................................................................................................... 58
9.1 Programming shopping carts ................................................................................................................................................................... 58
9.2 Creating programs manually..................................................................................................................................................................... 59
9.3 Creating an intelligent program ............................................................................................................................................................... 60
9.4 Editing and deleting programs ................................................................................................................................................................. 62
9.5 Starting programs and shopping carts ................................................................................................................................................... 62
10 Switching between operating modes.................................................................................................................................................... 64
11 Settings ......................................................................................................................................................................................................... 65
11.1 Favorites.......................................................................................................................................................................................................... 65
11.2 Display ............................................................................................................................................................................................................. 65
11.2.1 Language.............................................................................................................................................................................................. 65
11.2.2 Date and time ..................................................................................................................................................................................... 65
11.2.3 Temperature format......................................................................................................................................................................... 66
11.2.4 Volume units....................................................................................................................................................................................... 66
11.2.5 Program view..................................................................................................................................................................................... 66
11.3 Light.................................................................................................................................................................................................................. 66
11.3.1 Display brightness............................................................................................................................................................................. 67
11.4 Sound ............................................................................................................................................................................................................... 67
11.4.1 Master volume ................................................................................................................................................................................... 67
11.4.2 Loading / action requests .............................................................................................................................................................. 67
11.4.3 Program step end.............................................................................................................................................................................. 67
11.4.4 End of cooking time ......................................................................................................................................................................... 68
11.5 Cooking system ............................................................................................................................................................................................ 68
11.5.1 Information on the unit type.......................................................................................................................................................... 68
11.5.2 Demo mode ........................................................................................................................................................................................ 68
11.6 Cook ................................................................................................................................................................................................................. 68
11.6.1 Primary national cuisine .................................................................................................................................................................. 68
11.6.2 Secondary national cuisine ............................................................................................................................................................. 68
11.7 Data management ........................................................................................................................................................................................ 69
11.7.1 Export all data..................................................................................................................................................................................... 69
11.7.2 Cooking programs ............................................................................................................................................................................ 69
11.7.3 User profiles........................................................................................................................................................................................ 70

6 / 100 Original instructions for use
11.7.4 User images ........................................................................................................................................................................................ 70
11.7.5 User data: Delete all.......................................................................................................................................................................... 71
11.7.6 Basic cooking system settings....................................................................................................................................................... 71
11.7.7 HACCP data ........................................................................................................................................................................................ 71
11.7.8 Service .................................................................................................................................................................................................. 71
11.8 Network settings.......................................................................................................................................................................................... 72
11.8.1 Wireless LAN...................................................................................................................................................................................... 72
11.8.2 LAN (optional) .................................................................................................................................................................................... 72
11.9 User profile..................................................................................................................................................................................................... 72
11.10 Service.............................................................................................................................................................................................................. 73
11.10.1 Information on the unit type.......................................................................................................................................................... 73
11.10.2 Software update info........................................................................................................................................................................ 73
11.10.3 Installed software version............................................................................................................................................................... 73
11.11 ConnectedCooking ...................................................................................................................................................................................... 73
12 Kitchen management ................................................................................................................................................................................. 75
12.1 Managing profiles and permissions ........................................................................................................................................................ 75
12.1.1 Create new profile............................................................................................................................................................................. 75
12.1.2 Activate profile................................................................................................................................................................................... 76
12.1.3 Transferring a profile to other devices........................................................................................................................................ 76
12.1.4 Delete profile...................................................................................................................................................................................... 76
12.2 Hygiene management................................................................................................................................................................................. 77
12.2.1 Recorded HACCP data..................................................................................................................................................................... 77
12.2.2 Exporting HACCP data .................................................................................................................................................................... 77
12.2.3 Transmitting HACCP data to ConnectedCooking automatically ........................................................................................ 77
12.3 Connecting units to a network ................................................................................................................................................................. 77
12.3.1 Connecting the network cable ...................................................................................................................................................... 77
12.3.2 Establish network connection ....................................................................................................................................................... 78
12.3.3 Establish WLAN connection........................................................................................................................................................... 78
12.3.4 Monitoring the unit remotely via ConnectedCooking ........................................................................................................... 79
12.4 ConnectedCooking ...................................................................................................................................................................................... 79
12.4.1 Connect the unit with ConnectedCooking ................................................................................................................................ 80
12.5 Run software update ................................................................................................................................................................................... 80
13 Care ................................................................................................................................................................................................................ 82
13.1 General safety information........................................................................................................................................................................ 82
13.2 Cleaning interval ........................................................................................................................................................................................... 82
13.3 Care products ................................................................................................................................................................................................ 82
13.4 Cleaning the pan ........................................................................................................................................................................................... 83
13.5 Cleaning the hand shower ......................................................................................................................................................................... 84
13.6 Cleaning the control panel ......................................................................................................................................................................... 84
13.7 Cleaning accessories.................................................................................................................................................................................... 85
13.8 Cleaning units with pressure cooking systems (optional) ................................................................................................................ 85
14 Inspiration and help.................................................................................................................................................................................... 87
14.1 Unit help function......................................................................................................................................................................................... 87
14.2 Telephone help.............................................................................................................................................................................................. 87

Original instructions for use 7 / 100
14.3 Service-related help..................................................................................................................................................................................... 87
14.3.1 Transmitting service data to ConnectedCooking automatically ......................................................................................... 87
14.3.2 Querying service data ...................................................................................................................................................................... 87
14.4 Troubleshooting ........................................................................................................................................................................................... 87
14.4.1 Messages during cooking ............................................................................................................................................................... 88
14.4.2 Messages during pressure cooking (optional) .......................................................................................................................... 88
15 Maintenance................................................................................................................................................................................................. 90
15.1 General safety information........................................................................................................................................................................ 90
15.2 Replacing the pan lid seal ........................................................................................................................................................................... 90
15.3 Replacing the pan valve seal...................................................................................................................................................................... 90
16 Decommissioning and disposal............................................................................................................................................................... 91
16.1 Decommissioning......................................................................................................................................................................................... 91
16.2 Disposal ........................................................................................................................................................................................................... 91
16.3 Disposing of grease and oil ....................................................................................................................................................................... 91
17 Technical data .............................................................................................................................................................................................. 92
17.1 Units with pressure cooking (optional).................................................................................................................................................. 92
17.2 Types and model names............................................................................................................................................................................. 92
17.3 Labels ............................................................................................................................................................................................................... 92
17.4 Acrylamide in food ....................................................................................................................................................................................... 92
17.5 Conformity ..................................................................................................................................................................................................... 92
18 Regulatory Information............................................................................................................................................................................. 94
Directory of keywords............................................................................................................................................................................... 95

1 | Introduction
8 / 100 Original instructions for use
1 Introduction
Dear customer,
Congratulations on purchasing your new iVario. Please read this user’s manual through carefully before powering
up your unit for the first time. The operating instructions are there to ensure that you use the unit safely. Keep
these operating instructions in a place that is accessible at all times to anyone who will be using the unit.
The iVario is one of the world’s most state-of-the-art appliances when it comes to maximizing productivity,
flexibility, and ease of use when searing, deep-frying, boiling, and pressure cooking. Its one-of-a-kind heating
technology offers unparalleled precision and performance, and with proactive support from our intelligent cooking
assistants, you’ll get exceptional results every time, without the hassle of constantly supervising the process.
We hope you enjoy using your iVario.
All the best from
RATIONAL AG
1.1 Unit help function
These instructions for use are loaded to your unit, along with numerous example applications from all over the
world. More information on this function is available here: Unit help function [}87]
1.2 Product guarantee
Register your unit under www.rational-online.com/warranty to enjoy the benefits of our 2-year warranty. This
page also includes the general warranty terms and information on warranty services.
RATIONAL assumes no liability for damage occurring in connection with unauthorized technical modifications or
improper use.
1.3 Target audience
This document is written for people working in professional kitchens and food-service operations.
The unit must not be used, cleaned, or maintained by:
nPersons with restricted physical, sensory, or mental faculties
nPersons with limited knowledge and experience
nChildren
Children in the vicinity of the unit must be supervised at all times. Do not allow children to play with the unit.
1.4 Intended use
The iVario has been developed for the preparation of hot food.
This unit is only intended for use in commercial applications, such as restaurant kitchens or catering operations in
schools, hospitals, or delis. Do not use this device outdoors. This unit must not be used for continuous mass
industrial food production.
All other usages of this cooking system are considered improper and dangerous. RATIONAL AG assumes no
liability for consequences of improper use.
1.5 Using these instructions for use
1.5.1 Explanation of symbols
This document uses the following symbols to provide information and instructions for action:
aThis symbol indicates prerequisites that must be met before you take a specific action.
1. This symbol indicates an action you will need to take.
>This symbol indicates an intermediate result you can use to evaluate the results of a single action.
>> This symbol indicates an end result you can use to evaluate the results of a series of instructions.
nThis symbol is used for bullet points.

1 | Introduction
Original instructions for use 9 / 100
a. This symbol is used in lists.
1.5.2 Explanation of pictograms
The following pictograms are used in this document:
Caution! Read the instructions for use before using the unit.
General warning symbol
Useful information to help you use your unit.
1.5.3 Explanation of warnings
The following warnings are used to advise you of potentially dangerous situations and how to avoid them.
DANGER
The word DANGER indicates a situation that will result in severe injuries or death.
WARNING
The word WARNING indicates a situation that could result in severe injuries or death.
CAUTION
The word CAUTION indicates a situation that could result in injuries.
NOTE
The word NOTE indicates a situation that could result in damage to the unit.
1.5.4 Illustrations
The illustrations in these instructions for use may deviate from the actual unit.
1.5.5 Technical changes
We reserve the right to make technical changes in the interest of progress.

2 | The iVario
10 / 100 Original instructions for use
2 The iVario
Pan lid
Pan
core temperature probe
Locking system (optional)
Plug
USB port
Hand shower
Central selection knob
Display
Automatic lifting and lowering arm
(accessory)
Type 2-XS Type 2-S
automatic water filling
Seal
Pan valve
Steam nozzle
Please note that units without pressure cooking function have one steam nozzle. Devices with a pressure cooking
function have 2 steam nozzles.
Units with the pressure cooking feature are equipped with a locking system.

3 | General safety information
Original instructions for use 11 / 100
3 General safety information
This unit is constructed securely, and does not pose a danger when used normally and in accordance with
specifications. These instructions for use describe proper procedures for using this unit.
nThis unit should only be installed by your RATIONAL Service Partner.
nAll maintenance on this unit should be performed by your RATIONAL Service Partner.
nDo not modify the unit or the way your RATIONAL Service Partner has installed it.
nDo not use the cooking system if it is damaged in general, or if the connection cable is damaged. Damaged
cooking systems are unsafe and could cause burns or other injuries.
nNever place objects on top of the device.
Do not place hot containers or containers of hot liquids on top of the cooking system.
nDo not stand on the pull-out shelves of the stand.
nDo not stand on the unit.
nNever store flammable or combustible materials near the unit.
nOnly use the unit at ambient temperatures between +50°F and +104°F.
Safety instructions before use
nMake sure that the temperature of the unit is at least +41°F.
nIf the unit has been inactive for a longer period of time, rinse out the hand shower and the automatic water
intake with at least four gallons of water before using the unit again.
Safety instructions during use
nFollow the minimum and maximum permitted pan fill levels [}18].
nDo not exceed the maximum permitted pan load capacity [}18]. Maximum load capacities vary by product
and cooking path.
nTo avoid property damage, injury or death:
– If tilting the pan causes food or liquid to spill onto the floor, clean the floor immediately. The floor must
be clean and dry in order to prevent slipping injuries.
– Close the pan lid carefully, making sure not to crush your own fingers or anyone else’s.
– Lower the pan carefully, making sure that no people or objects are within the travel path of the pan.
– Do not place any objects on the control panel. The tilting function of the cooking system could be
triggered by placing objects on the control panel. There is a risk of injury or damage if the pan is lowered
and people or objects are within the pan’s range of travel.
– Do not place any objects on the control panel. The tilting function of the cooking system could be
triggered by placing objects on the control panel. Having hot food or liquid splashed onto you could cause
scalding injuries.
– Do not use the cooking system to cook highly flammable liquids, e.g., wine or other alcoholic beverages.
Flammable liquids can catch fire when evaporating.
– Do not close the pan lid until the pan has been fully lowered.
nTo avoid scalding and burn injuries:
– Always wear personal protective equipment when boiling, sautéing, or deep-frying food.
– Always wear personal protective equipment when removing anything from the hot pan.
– Exercise caution when opening the pan lid during use. Hot steam may escape.
– Do not fill the preheated pan with cold water.
– Always tilt full pans slowly and carefully. Quick, jerky movements can cause hot food or liquid to splash
out.
– When the cooking system is in use, only touch the control panel and the handle on the pan lid. The
external surfaces can heat up to temperatures exceeding 140°F.
nTo prevent fire risk:

3 | General safety information
12 / 100 Original instructions for use
– Never pour water into hot oil or grease.
Safety instructions after use
nClean the unit after each use.
nIn order to prevent the pan from corroding, leave the pan lid open and the pan drain valve open. This should be
done overnight, or whenever the unit will not be in use for a longer period.
nIf the unit will not be in use for a longer period, cut off the building electricity and water supplies to the unit.
3.1 Personal protective equipment
nOnly use the unit when wearing clothing that will protect you against work-related accidents, especially due to
heat, splashing hot liquids, or corrosive substances.
nWear gloves that will provide reliable protection when handling hot or sharp-edged objects.
nWhen cleaning the unit, wear tight-fitting safety glasses and chemical protective gloves that will allow you to
handle cleaning products safely.

4 | Working with the unit
Original instructions for use 13 / 100
4 Working with the unit
4.1 Initial start-up
When you start your unit for the first time, it will have already been properly installed by a RATIONAL Service
Partner, so it will be ready to use. Information related to installation is available in the installation manual included
in delivery.
Before working with the unit for the first time
1. Clean the unit and all accessories before initial use.
More information is available here: Care [}82]
4.2 Switching the unit on and off
1. To switch the cooking system on, press and hold this button until the LED lights up green:
>The cooking system will power on. The home screen [}14] will appear.
2. To switch the cooking system off, press and hold this button until the LED lights up orange:
>A prompt will appear, asking if you really want to switch the cooking system off.
3. Press this button: Yes
>> The cooking system will power off.

4 | Working with the unit
14 / 100 Original instructions for use
4.3 Home screen
Home
Intelligent cooking modes
iCookingSuite
iZoneControl
Height adjustment
Programming mode
Date, time, status
Settings
Back / Cancel
Help
Actions
Favorites
Cooking method
Manual operating modes
niZoneControl [}50]
Please note that this intelligent assistant is optional on Model 2-XS cooking systems.
nIntelligent cooking - iCookingSuite [}27]
nHome
Pressing this button will take you to the home screen.
nManual operating modes [}40]
nFavorites
Pressing this button takes you directly to your favorites.
nIntelligent cooking modes [}27]
Pressing one of these buttons will display all of the intelligent cooking paths assigned to that intelligent
cooking mode.
nCooking method
Pressing this button will display all of the intelligent cooking paths assigned to that cooking method.
nProgramming mode [}58]
nHeight adjustment (option) [}25]
nDate, time, status [}16]
nSettings [}65]
nHelp [}87]
nBack / Cancel
Pressing this button will take you back to the previous screen. Press and hold this button in order to cancel the
cooking process.

4 | Working with the unit
Original instructions for use 15 / 100
4.3.1 General view and focus view
If you switch on the unit, an overview of both pans will be displayed on the home screen. To start a cooking path,
you will need to select one of the two pans. The display will zoom in on that pan and display it in focus view. If you
do not select a pan, the unit will prompt you to do so. The general view can be customized.
1. Tap the pan you want to use.
>The display will zoom in on that pan, and then you can select the manual operating modes or intelligent
cooking paths you want to use.
2. If you would like to use the other pan as well, tap that pan.
>The display will minimize that pan and zoom in on the other one.
4.3.2 Favorites
You can save any intelligent cooking paths and programs you use especially often as favorites, and then call them
up via the home screen. For example, you can save the dishes on your seasonal menu as favorites so that you can
access them as quickly as possible.
1. You can set cooking paths and programs as favorites while in iCookingSuite or programming mode.
2. Press this button: the setting can be found next to the selected cooking paths and programs.
3. Press this button:

4 | Working with the unit
16 / 100 Original instructions for use
>> All cooking paths and programs marked as favorites will be displayed.
4.3.3 Date, time, status
The footer bar always shows the current date and time, as well as the status of the following ports and
connections:
USB stick connected
This symbol indicates that there is a USB stick plugged into the cooking system.
Network connection
This symbol indicates that your cooking system is connected to a LAN network. If a network error occurs, this
symbol will be shown:
WLAN connection (optional)
This symbol indicates that your cooking system is connected to a WLAN network. The connection quality is very
good.
If connection quality decreases, these symbols will be shown:
If a connection error occurs, this symbol will be shown:
Please note that this function is optional on 2-XS models.
Error message
This symbol indicates that an error message is being shown on the display.
ConnectedCooking connection
This symbol indicates that your cooking system is connected to ConnectedCooking. If your cooking system is not
connected to ConnectedCooking, this symbol will be shown:
Energy optimization
The symbol will appear in the footer on the start screen if the cooking system cannot meet a heating
requirement.
The purpose of energy optimization is to help the unit be efficient with energy use.
Power failure
In the event of a power failure, the following symbol will be displayed in the footer.
It will disappear when a new cooking application is selected. To do this, return to the start page.
The length of the power failure determines whether the cooking path is resumed or restarted, depending on the
specific cooking path and cooking method in question.
For example,
If the power goes out while low temperature cooking is in process, the cooking path will be interrupted.
If the power outage lasts less than 15 minutes, the cooking path will be resumed.
If it lasts for more than 15 minutes, the cooking system will switch to standby mode after the power returns. You
will need to restart the cooking path to finish cooking the food.
4.3.4 Help function
Help function
Selecting the question mark icon will take you to the cooking system's built-in help function. It describes how to
operate your cooking system in digital form. The help function is context-sensitive: information for the current
screen content is always displayed first. The help function also contains detailed information on individual cooking
paths, and it provides a wealth of RATIONAL-tested application examples with useful tips.

4 | Working with the unit
Original instructions for use 17 / 100
4.3.5 Actions
The following symbols may be shown whether or not a cooking path is currently in process.
Symbol Function
Open pan lid automatically [}19]
Close pan lid [}19]
Tilt pan [}20]
Lower pan [}20]
Automatic water filling [}19]
Open pan valve [}21]
Close pan valve [}21]
4.4 Interacting with the unit
NOTE
Improper display operation
Using a sharp or pointed object to operate the display could damage the display.
1. Only operate the cooking system with your hands.
4.4.1 Gestures
You can operate the display using a few simple gestures.
Pressing Swiping Scrolling Drag-and-drop
4.4.2 Central selection knob
Instead of gestures, you can adjust settings by turning the central knob. Actions (e.g., automatic opening of the pan
lid, automatic pan lowering, integrated water intake) can be interrupted using the central selection knob as well.
You can also use the central knob to switch off the signal tone emitted when the unit prompts user action.

4 | Working with the unit
18 / 100 Original instructions for use
4.5 Fill levels
NOTE
Unit damage due to under- or overfilling
Putting too much or too little food or water into the pan (overfilling or underfilling) can damage the unit.
1. Make sure to keep food and liquid quantities within the maximum and minimum pan fill levels.
Model 2-XS
Min. fill level / pan [gal] Max. fill level / pan [gal]
Water, liquid food, solid food
in cooking liquid
Without basket 3/4 4 1/2
With basket 3/4 3 1/8
Oil Without basket 1 3/8 2 5/8
With basket 1 3/8 2 5/8
Model 2-S
Min. fill level / pan [gal] Max. fill level / pan [gal]
Water, liquid food, solid food
in cooking liquid
Without basket 1 6 1/2
With basket 1 4 3/4
Oil Without basket 2 5/8 4
With basket 2 5/8 4
4.5.1 Fill levels for pressure cooking (optional)
When pressure cooking food, always make sure to fill the pan with no less than the amount of water specified in
the min. fill level per pan [gal] column. The measurement in the max. fill level / pan [gal] column applies when
filling the pan with water, liquid food or solid food in a cooking liquid.
Model Min. fill level / pan [gal] Max. fill level / pan [gal]
2-S 1 6 1/2
4.6 Maximum load capacities
Model Max. load capacity [lb] Max. load, pressure cooking (opt.) [lb]
2-XS 37 –
2-S 55 55
Usage example
This table uses French fries as an example to show maximum load capacities per pan and how much oil you will
need.
Model Max. load capacity [lb] max. quantity of oil [gal]
2-XS 3.3 2 5/8
2-S 5.5 4

4 | Working with the unit
Original instructions for use 19 / 100
4.7 Opening and shutting the pan lid
CAUTION
Pan lid can only be opened or shut using jerking movements
Mechanically defective pan lids can cause injury.
1. Open the pan lid fully and do not close it again.
2. Contact your RATIONAL Service Partner.
NOTE
Closing the pan lid when the pan is in a tilted position can damage the pan lid or the pan lid seal.
Damaged parts must be replaced.
1. Do not close the pan lid until the pan has been fully lowered.
Open pan lid
1. CAUTION!Scalding hazard! If the cooking system is in operation, hot steam may billow out. Grasp the
pan lid by the handle to open it.
Closing the pan lid with iVarioClose
The pan lid lowering function, iVarioClose , is especially useful with elevated installations.
1. Press the button.
>The pan lid will lower to a defined position and remain in that position for four seconds.
2. Grasp the handle of the pan lid and close it the rest of the way manually.
>> If the pan lid is not closed manually, it will open automatically after four seconds.
If you press the selection dial during automatic lowering, the pan lid will stop in its current position.
After four seconds, the pan lid will automatically reopen fully.
Deactivating the iVarioClose function
You can deactivate the pan lid lowering function as follows:
1. Press this button: .
2. Press this button: Cooking system
3. Press the OFF button on the other side of iVarioClose.
>> The iVarioClose pan lid lowering function is deactivated.
4.8 Filling the pan using the automatic water intake
CAUTION
Bacterial growth in the automatic water intake
Not using the automatic water intake every day can result in bacteria developing in the water line.
1. Clean the automatic water intake every morning and evening using dish soap and a sponge.
2. Activate the automatic water intake every morning and evening with about a gallon of water.
The automatic water inlet allows you to fill the pan automatically with a specific amount of water, measured to the
quart.

4 | Working with the unit
20 / 100 Original instructions for use
1. Press this button:
2. Set the amount of water you want to use. Be mindful of maximum fill quantities. The amount you set will be
applied automatically within a few seconds.
>The unit will be filled with the specified quantity of water. The display will show you how much water still
needs to be dispensed.
>Pressing this button: or the selection dial will stop automatic water filling.
4.9 Tilting and lowering the pan
Tilt pan
WARNING
Tilting the pan can result in hot food or liquid splashing out.
Having hot food or liquid splashed onto you could cause scalding injuries.
1. Wear personal protective equipment to protect yourself against burns and scalding.
2. Exercise caution when tilting the pan.
3. Clean up any splashed food or liquids immediately - keep the floor around the unit dry to prevent slips and
falls.
WARNING
Transferring hot food into a container that is too small can result in it spilling over.
Spilling hot food and liquids can cause scalding injuries.
1. Always make sure to use sufficiently large containers so that you can transfer hot food safely.
2. Wear personal protective equipment to protect yourself against burns and scalding.
3. Clean up any spilled food or liquids immediately - keep the floor around the unit dry to prevent slips and
falls.