Rational iCombi Pro Service manual

iCombi® Pro
Original instructions for use

WARNING
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
vapours and liquids in the vicinity of this or any other
appliance.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, injury or
death
Read the installation, operating and maintenance
instructions thoroughly before installing or servicing
this equipment.
NOTE
How to respond if you smell gas:
– Do not switch any lights or equipment on or off.
Do not unplug anything. Do not use any landlines
or mobile phones. They could create sparks and
increase the risk of explosion.
– Open the doors and windows to ventilate the
room with fresh air. Do not switch on recirculation
hoods or ventilators in order to ventilate the room.
They could create sparks and increase the risk of
explosion.
– Close the locking mechanism on the gas line.
– Leave the building and contact the fire department
or your gas company.

Original instructions for use 3 / 188
Contents
1 Introduction ............................................................................................................................... 12
1.1 Unit help function................................................................................................................... 12
1.2 Product liability ....................................................................................................................... 12
1.3 Target audience....................................................................................................................... 12
1.4 Intended use............................................................................................................................. 12
1.5 Using these instructions for use......................................................................................... 13
1.5.1 Explanation of symbols.............................................................................................. 13
1.5.2 Explanation of pictograms........................................................................................ 13
1.5.3 Explanation of warnings............................................................................................ 13
1.5.4 Illustrations.................................................................................................................... 14
1.5.5 Technical changes........................................................................................................ 14
2 The iCombi Pro.......................................................................................................................... 15
3 General safety information..................................................................................................... 16
3.1 Safety information for units with gas line connections............................................... 18
3.2 Personal protective equipment .......................................................................................... 18
4 Working with the unit ............................................................................................................. 20
4.1 Initial start-up .......................................................................................................................... 20
4.2 Switching the unit on and off.............................................................................................. 20
4.3 Home screen............................................................................................................................ 21
4.3.1 Favorites ........................................................................................................................ 22
4.3.2 Date, time, status......................................................................................................... 23
4.3.3 Help function ................................................................................................................ 24
4.4 Interacting with the unit ....................................................................................................... 24
4.4.1 Gestures ......................................................................................................................... 24
4.4.2 Central selection knob ............................................................................................... 24
4.5 Maximum load capacities ..................................................................................................... 25
4.6 Opening and shutting the cooking cabinet door .......................................................... 25
4.7 Load unit.................................................................................................................................... 26
4.8 Inserting core temperature probes ................................................................................... 27
4.9 Using the hand shower......................................................................................................... 31
4.10 Removing hinging racks ....................................................................................................... 33

4 / 188 Original instructions for use
4.11 Integrated fat drain ................................................................................................................ 33
5 Intelligent cooking - iCookingSuite...................................................................................... 35
5.1 Modes and cooking methods.............................................................................................. 35
5.2 Intelligent cooking paths...................................................................................................... 36
5.2.1 Poultry ............................................................................................................................ 36
5.2.2 Meat ................................................................................................................................ 38
5.2.3 Seafood .......................................................................................................................... 41
5.2.4 Egg dishes and desserts ............................................................................................ 42
5.2.5 Vegetables and side dishes....................................................................................... 43
5.2.6 Baked goods ................................................................................................................. 45
5.2.7 Finishing......................................................................................................................... 48
5.2.8 Smoking ......................................................................................................................... 49
5.2.9 Sous vide........................................................................................................................ 50
5.2.10 Pasteurizing................................................................................................................... 50
5.3 Cooking food intelligently ................................................................................................... 51
5.3.1 Accessing intelligent cooking paths....................................................................... 51
5.3.2 Starting an intelligent cooking path....................................................................... 51
5.3.3 Pre-select start time................................................................................................... 53
5.4 Fine-tuning your results ....................................................................................................... 54
5.4.1 cooking parameter...................................................................................................... 54
5.4.2 Additional functions ................................................................................................... 57
5.4.3 Prompts.......................................................................................................................... 57
5.4.4 Information ................................................................................................................... 58
5.4.5 Options........................................................................................................................... 59
5.5 Monitoring an intelligent cooking path............................................................................ 61
5.6 Canceling an intelligent cooking path............................................................................... 61
5.7 Sorting intelligent cooking paths....................................................................................... 61
6 Manual cooking ......................................................................................................................... 62
6.1 Fine-tuning your results ....................................................................................................... 62
6.1.1 cooking parameter...................................................................................................... 62
6.1.2 Additional functions ................................................................................................... 63
6.1.3 Prompts and information.......................................................................................... 65

Original instructions for use 5 / 188
6.2 Steam ......................................................................................................................................... 65
6.2.1 Cooking cabinet climate and temperature range............................................... 65
6.2.2 Cooking with steam ................................................................................................... 65
6.3 combi-steam............................................................................................................................ 66
6.3.1 Cooking cabinet climate and temperature range............................................... 66
6.3.2 Cooking in Combi Steam mode.............................................................................. 67
6.4 convection ................................................................................................................................ 68
6.4.1 Cooking cabinet climate and temperature range............................................... 68
6.4.2 Cooking with hot air................................................................................................... 68
6.5 Cancel manual cooking ......................................................................................................... 69
7 Sous-vide cooking.................................................................................................................... 70
8 Low temperature cooking ...................................................................................................... 71
9 Finishing...................................................................................................................................... 72
9.1 Set à la carte plate weight .................................................................................................... 72
9.2 Setting the banqueting plate weight ................................................................................ 73
10 iProductionManager ................................................................................................................ 74
10.1 Creating manual tickets ........................................................................................................ 74
10.2 Ticket board ............................................................................................................................. 75
10.2.1 Adding intelligent cooking paths............................................................................ 75
10.2.2 Adding programs and shopping carts ................................................................... 76
10.2.3 Ticket board editor ..................................................................................................... 76
10.3 Timer .......................................................................................................................................... 77
10.4 Placing tickets.......................................................................................................................... 78
10.4.1 Combination check ..................................................................................................... 79
10.4.2 Positioning logic.......................................................................................................... 79
10.4.3 Close planning gaps.................................................................................................... 80
10.4.4 Time optimization....................................................................................................... 81
10.4.5 Energy optimization ................................................................................................... 82
10.5 Editing and deleting tickets ................................................................................................. 83
10.6 Copy tickets.............................................................................................................................. 83
10.7 Target time cooking............................................................................................................... 84
10.8 Planning..................................................................................................................................... 85

6 / 188 Original instructions for use
10.8.1 Creating plans............................................................................................................... 85
10.8.2 Starting plans................................................................................................................ 86
11 Programming mode ................................................................................................................. 88
11.1 Creating programs manually............................................................................................... 88
11.2 Creating an intelligent program ......................................................................................... 91
11.3 Programming shopping carts ............................................................................................. 93
11.4 Editing and deleting programs ........................................................................................... 94
11.5 Starting programs and shopping carts ............................................................................. 95
12 Programming mode (chemical storage) .............................................................................. 96
12.1 Create cleaning program (chemical reserves) ................................................................ 96
12.2 Editing and deleting programs (chemical reserves)...................................................... 98
13 Switching between operating modes.................................................................................. 100
14 Settings ....................................................................................................................................... 102
14.1 Favorites.................................................................................................................................... 102
14.2 Display ....................................................................................................................................... 102
14.2.1 Language........................................................................................................................ 102
14.2.2 Date and time ............................................................................................................... 103
14.2.3 Temperature format................................................................................................... 103
14.2.4 Program view............................................................................................................... 104
14.3 Light............................................................................................................................................ 104
14.3.1 Display brightness....................................................................................................... 104
14.4 Sound ......................................................................................................................................... 105
14.4.1 Master volume ............................................................................................................. 105
14.4.2 Loading / action requests ........................................................................................ 105
14.4.3 Program step end........................................................................................................ 106
14.4.4 End of cooking time ................................................................................................... 106
14.4.5 Process canceled / error detected......................................................................... 107
14.5 Cooking system ...................................................................................................................... 108
14.5.1 Information on the unit type.................................................................................... 108
14.5.2 Power usage ................................................................................................................. 108
14.5.3 iProductionManager energy-saving mode.......................................................... 108
14.5.4 Screen lock .................................................................................................................... 108

Original instructions for use 7 / 188
14.5.5 Demo mode .................................................................................................................. 109
14.5.6 Power steam................................................................................................................. 109
14.5.7 Control nozzle .............................................................................................................. 109
14.5.8 Watchdog ...................................................................................................................... 110
14.5.9 Danger ............................................................................................................................ 110
14.5.10 Remote control ............................................................................................................ 110
14.5.11 Empty steam generator............................................................................................. 110
14.5.12 VarioSmoker................................................................................................................. 110
14.6 Cook ........................................................................................................................................... 111
14.6.1 Primary national cuisine ............................................................................................ 111
14.6.2 Secondary national cuisine ....................................................................................... 111
14.6.3 Run-on time.................................................................................................................. 111
14.6.4 Core temperature probe reading............................................................................ 111
14.6.5 Cooking time format.................................................................................................. 112
14.6.6 A la carte plate weight................................................................................................ 112
14.6.7 Banqueting plate weight ........................................................................................... 112
14.6.8 Number of racks .......................................................................................................... 112
14.6.9 Order of racks............................................................................................................... 112
14.6.10 Load calculation for manual programs in iProductionManager..................... 113
14.6.11 Hold time climate ........................................................................................................ 113
14.6.12 iProductionManager 3D............................................................................................ 113
14.7 Cleaning..................................................................................................................................... 114
14.7.1 Forced cleaning............................................................................................................ 114
14.7.2 Cleaning schedule........................................................................................................ 114
14.7.3 Hand shower cleaning................................................................................................ 114
14.7.4 Upcoming cleaning reminders ................................................................................ 114
14.7.5 Idle time without interaction before exiting ....................................................... 114
14.8 Cleaning (chemical storage)................................................................................................. 115
14.8.1 Forced cleaning (chemical storage)........................................................................ 115
14.8.2 Cleaning schedule (chemical storage).................................................................... 115
14.8.3 Hand shower cleaning................................................................................................ 117
14.8.4 Cartridge fill level threshold..................................................................................... 117
14.8.5 Switch off after cleaning............................................................................................ 117

8 / 188 Original instructions for use
14.8.6 Upcoming cleaning reminders ................................................................................ 117
14.8.7 Idle time without interaction before exiting ....................................................... 117
14.9 Data management .................................................................................................................. 117
14.9.1 Export all data............................................................................................................... 118
14.9.2 Cooking programs ...................................................................................................... 118
14.9.3 User profiles.................................................................................................................. 119
14.9.4 User images .................................................................................................................. 119
14.9.5 User data: Delete all.................................................................................................... 120
14.9.6 Basic cooking system settings................................................................................. 120
14.9.7 HACCP data .................................................................................................................. 121
14.9.8 Service ............................................................................................................................ 121
14.10 Network settings.................................................................................................................... 122
14.11 User profile............................................................................................................................... 124
14.11.1 Activate profile............................................................................................................. 124
14.11.2 Edit profile..................................................................................................................... 125
14.11.3 Add profile..................................................................................................................... 128
14.11.4 Edit display.................................................................................................................... 128
14.11.5 Create new screen....................................................................................................... 129
14.12 Service........................................................................................................................................ 129
14.12.1 Software update info.................................................................................................. 130
14.12.2 Installed software version......................................................................................... 130
14.13 ConnectedCooking ................................................................................................................ 130
15 Kitchen management ............................................................................................................... 133
15.1 Hygiene management........................................................................................................... 133
15.1.1 Recorded HACCP data............................................................................................... 133
15.1.2 Exporting HACCP data .............................................................................................. 133
15.1.3 Transmitting HACCP data to ConnectedCooking automatically .................. 133
15.2 Connecting units to a network ........................................................................................... 134
15.2.1 Establish WLAN connection..................................................................................... 134
15.2.2 Connecting the network cable ................................................................................ 135
15.2.3 Establish network connection ................................................................................. 135
15.3 ConnectedCooking ................................................................................................................ 136
15.3.1 Connect the unit with ConnectedCooking .......................................................... 137

Original instructions for use 9 / 188
15.4 Run software update ............................................................................................................. 138
16 Automatic cleaning - iCareSystem (chemical storage) ..................................................... 139
16.1 General safety information.................................................................................................. 139
16.2 Cleaning modes....................................................................................................................... 140
16.3 Cleaning programs................................................................................................................. 140
16.4 Cleaning, care and cleaner cartridge status..................................................................... 141
16.5 Replace cleaner cartridge ..................................................................................................... 143
16.6 Starting automatic cleaning................................................................................................. 144
16.7 Canceling automatic cleaning ............................................................................................. 145
16.8 Forced cleaning after operating hours ............................................................................. 145
17 Automatic cleaning - iCareSystem........................................................................................ 147
17.1 General safety information.................................................................................................. 147
17.2 Cleaning modes....................................................................................................................... 148
17.3 Cleaning programs................................................................................................................. 148
17.4 Cleaning and care status....................................................................................................... 149
17.5 Starting automatic cleaning................................................................................................. 150
17.6 Canceling automatic cleaning ............................................................................................. 151
17.7 Forced cleaning after operating hours ............................................................................. 152
17.8 Cleaning schedule................................................................................................................... 152
18 Care .............................................................................................................................................. 154
18.1 General safety information.................................................................................................. 154
18.2 Care intervals ........................................................................................................................... 154
18.3 Care products .......................................................................................................................... 155
18.4 Cleaning the cooking cabinet door.................................................................................... 156
18.5 Descaling the steam nozzle.................................................................................................. 157
18.6 Cleaning the air filter ............................................................................................................. 158
18.7 Cleaning the hand shower ................................................................................................... 159
18.8 Cleaning the control panel ................................................................................................... 159
18.9 Cleaning accessories.............................................................................................................. 160
18.10 Cleaning the drain ventilation pipe.................................................................................... 160
19 Care (chemical storage)............................................................................................................ 162
19.1 General safety information.................................................................................................. 162

10 / 188 Original instructions for use
19.2 Care products .......................................................................................................................... 162
19.3 Care intervals WA62 ............................................................................................................. 163
19.4 Cleaning the cooking cabinet door.................................................................................... 164
19.5 Descaling the steam nozzle.................................................................................................. 165
19.6 Cleaning the air filter ............................................................................................................. 166
19.7 Cleaning the hand shower ................................................................................................... 167
19.8 Cleaning the control panel ................................................................................................... 167
19.9 Cleaning accessories.............................................................................................................. 168
19.10 Cleaning the drain ventilation pipe.................................................................................... 168
20 Inspiration and help..................................................................................................................170
20.1 Unit help function................................................................................................................... 170
20.2 Telephone help........................................................................................................................ 170
20.3 Service-related help............................................................................................................... 170
20.3.1 Transmitting service data to ConnectedCooking automatically ................... 170
20.3.2 Querying service data ................................................................................................ 171
20.4 Problem resolution ................................................................................................................ 171
20.4.1 Notification centre ...................................................................................................... 171
20.5 Error messages........................................................................................................................ 172
20.5.1 Error messages heating steam generator ............................................................ 172
20.5.2 Error messages for gas units.................................................................................... 173
20.5.3 Error messages heating hot air ............................................................................... 174
20.5.4 Error messages humidity .......................................................................................... 174
20.5.5 iCareSystem error messages – cleaning .............................................................. 175
20.5.6 iCareSystem error messages – care ...................................................................... 176
21 Maintenance............................................................................................................................... 177
21.1 Replacing air filters................................................................................................................. 177
21.2 Replacing the cooking cabinet door seal ......................................................................... 178
22 Transport .................................................................................................................................... 179
22.1 Transporting the unit............................................................................................................. 179
23 Decommissioning and disposal.............................................................................................181
23.1 Decommissioning................................................................................................................... 181
23.2 Disposal ..................................................................................................................................... 181

Original instructions for use 11 / 188
24 Technical data ............................................................................................................................ 182
24.1 Units with electrical connections....................................................................................... 182
24.2 Units with gas connections.................................................................................................. 182
24.3 Types and model names....................................................................................................... 182
24.4 Conformity ............................................................................................................................... 183
24.4.1 Units with electrical connections............................................................................ 183
24.4.2 Units with gas connections ...................................................................................... 183
25 Regulatory Information........................................................................................................... 185
Directory of keywords............................................................................................................. 186

1 | Introduction
12 / 188 Original instructions for use
1 Introduction
Dear customer,
Congratulations on purchasing your new iCombi Pro. Read the operating
instructions carefully prior to using 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 iCombi Pro is the most intelligent combi-steamer. It cooks a multitude of
different dishes for 20 or several thousands of guests. Whether these are fish,
meat, poultry, side dishes or baked goods, or whether they are fried, steamed,
grilled or baked. Thanks to its cooking intelligence and its intelligent climate
management, this is all done automatically, to the point, even with a maximum
load.
We hope you enjoy using your iCombi Pro.
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 [}170]
1.2 Product liability
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 iCombi Pro has been developed for the preparation of hot food.

1 | Introduction
Original instructions for use 13 / 188
This unit is only intended for commercial use, such as in restaurant kitchens,
hospital food service operations, bakeries, or delis. Do not use this unit 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.
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.

1 | Introduction
14 / 188 Original instructions for use
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 iCombi Pro
Original instructions for use 15 / 188
2 The iCombi Pro
Model 10-half size
Model 6-full size Model 10-full sizeModel 6-half size
Control panel
Display
Selection dial
USB port
Air filter
Cooking cabinet
Cooking cabinet door
Door handle
Hand shower
Cleaning hatch

3 | General safety information
16 / 188 Original instructions for use
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.
nYour cooking system should be serviced at least once a year by an authorized
RATIONAL service partner to ensure that it is in perfect technical condition.
nDo not modify the unit or the way your RATIONAL Service Partner has
installed it.
nDo not remove the drain sieve.
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.
nDo not use the unit if the glass on the cooking cabinet door is damaged.
Contact your RATIONAL Service Partner and have the cooking cabinet door
glass replaced.
nNever place objects on top of the device.
Do not place hot containers or containers of hot liquids on top of the cooking
system.
nNever store flammable or combustible materials near the unit.
nOnly use the unit at ambient temperatures between +50°F and +104°F.
nAvoid placing sources of heat near the unit, such as deep fryers or grills.
nWhile using the unit, keep the floor around it clean and dry.
nRegular training and safety instructions for operating personnel are essential
to preventing accidents or damage to the cooking system.
nThis cooking system must not be used by children or persons with reduced
physical, sensory or mental capabilities, or by anyone lacking proper
experience and/or knowledge, unless that person is made aware of the
potential dangers of the cooking system, and remains under the supervision
of someone who takes responsibility for safety. When supervising, please
keep in mind that surfaces and accessories may be hot. Cleaning and user
maintenance must not be performed by children, even when supervised
Safety instructions before use
nMake sure that the temperature of the unit is at least +41°F.

3 | General safety information
Original instructions for use 17 / 188
nMake sure that the air baffle in front of the fan is secure at the top and the
bottom.
nWhen using the hinging rack or mobile oven rack, make sure to lock them in
place.
nMake sure that the cooking cabinet is free of cleaner tab residue.
nIf the unit has been inactive for a longer period of time, rinse out the hand
shower with at least 2 1/2 gallons of water before using the unit again.
Safety instructions during use
nTo avoid scalding and burn injuries:
– Exercise caution when opening the cooking cabinet door - Hot steam
may escape.
– Always wear personal protective equipment when removing anything
from the hot cooking cabinet.
– When the unit is in use, only touch the control panel and the cooking
cabinet door grip. The external surfaces can heat up to temperatures
exceeding 140°F.
– Only slide containers of food into racks at levels you can see into.
Otherwise, hot food can spill out when being unloaded from the unit.
nTo avoid the risk of fire or explosion:
– 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.
– When roasting or grilling, place a drip pan underneath the food to catch
grease.
nTo prevent equipment damage due to improper use of accessories:
– Only use original RATIONAL accessories.
– Only smoke food using the VarioSmoker.
nIf there is food in the cooking cabinet that has already been brought up to
serving temperature, do not load cold food into the cooking cabinet.
To avoid injury when working with transport trolleys, mobile racks, or mobile
plate racks:
nExercise caution when pushing transport trolleys, mobile racks, or mobile
plate racks across uneven surfaces or thresholds, to prevent them from
tipping.
nActivate locking brakes on transport trolleys, mobile racks, or mobile plate
racks to keep them from rolling away on uneven floors.

3 | General safety information
18 / 188 Original instructions for use
nBefore sliding a mobile rack or mobile plate rack into or out of the cooking
system, secure the transport trolley to your cooking system.
nWhen moving the mobile rack, secure the container lock on the mobile rack
and cover containers of hot food. Otherwise, hot food could splash out.
Safety instructions after use
nClean the unit after each use.
nIn order to prevent the cooking cabinet from corroding, leave the cooking
cabinet door open a crack whenever the unit will not be in use for a longer
period, including overnight.
nIf the unit will not be in use for a longer period, cut off the building water,
electric and gas lines to the unit.
nEmpty the steam generator before transporting the unit, or when the unit will
not be in use for a longer period.
3.1 Safety information for units with gas line connections
nTo prevent fire risk:
– If your cooking system is connected to a chimney, contact your gas
technician regularly to have the cooking system’s exhaust line cleaned.
Always observe country-specific regulations in this regard.
– Never place objects atop the exhaust pipes.
nTo prevent fatal accidents:
– If using your cooking system with a recirculating hood, always switch on
the recirculating hood while the cooking system is in use. Otherwise,
flammable gases could build up.
nHow to respond if you smell gas:
– Do not switch any lights or equipment on or off. Do not unplug anything.
Do not use any landlines or mobile phones. They could create sparks and
increase the risk of explosion.
– Open the doors and windows to ventilate the room with fresh air. Do
not switch on recirculating hoods or ventilators in order to ventilate the
room. They could create sparks and increase the risk of explosion.
– Close the shut-off mechanism of the gas line.
– Leave the building and contact the fire department or your gas company.
3.2 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.

3 | General safety information
Original instructions for use 19 / 188
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
20 / 188 Original instructions for use
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, The self-test will have been completed,
so the unit will be ready for 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 [}154]
4.2 Switching the unit on and off
Switching the cooking system on
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 [}21] will appear.
Operation without water supply
Continuous operation without water is not possible.
When operating the cooking system without connecting it to a water supply, you
will be prompted to pour 3 liters of water into the cooking cabinet. This symbol
will appear in the footer: . Temporary operation without a water supply is
possible under the following conditions:
1. Pour 3 liters of water into the bottom of the cooking cabinet.
2. To confirm, press this button:
3. After max. 5 hours of cooking system operation, cool it down to < 100°C.
4. Then pour another 3 liters of water into the cooking cabinet.
5. As soon as water is available again, start cleaning.