Rational iCombi Pro User manual

iCombi® Pro
iCombi® Classic
CombiMaster® Plus
Original installation instructions

Device hand-over
Dealer: Installer:
Include the following information with queries:
Device no.:
Device type:
Set to gas type:
Your device was tested:
WARNING
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors or
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
Hazard due to leaking gas
There is a risk of explosion if their is a gas leak.
Watch out for the smell of gas.
Avoid damage to the gas supply line.
Conduct in the event of a gas odor:
nShut off the gas supply.
nDo not touch any electrical switching elements.
nVentilate the room well.
nAvoid open flames and sparks.
nImmediately inform the responsible gas supplier by means of an external telephone. If the gas supplier cannot be reached, call
the responsible fire department.
2 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US

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Table of contents
1 Introduction ................................................................................................................. 6
1.1 Information on this manual ......................................................................................................6
1.2 Target audience............................................................................................................................6
1.3 Copyright.......................................................................................................................................7
1.4 Conformity ....................................................................................................................................7
1.5 Liability and warranty conditions ...........................................................................................7
1.6 Identification of the device.......................................................................................................8
2 Safety...........................................................................................................................10
2.1 Display of warning notices ....................................................................................................10
2.2 General safety information....................................................................................................10
2.3 Safety notes on gas devices ..................................................................................................11
2.4 Intended use...............................................................................................................................12
3 Product description .................................................................................................13
3.1 Device description....................................................................................................................13
3.2 Technical data ............................................................................................................................14
3.2.1 Device dimensions ........................................................................................................15
3.2.2 Device weight.................................................................................................................17
3.2.3 Thermal load....................................................................................................................17
4 Transport....................................................................................................................19
4.1 Center of mass on the device................................................................................................ 19
4.2 Transport with pallet ...............................................................................................................20
4.3 Transport without transport pallet with lift truck...........................................................22
4.3.1 Transport tabletop devices without pallet with pallet truck.............................22
4.3.2 Transport floor devices without pallet with lift truck .........................................23
5 Setup............................................................................................................................25
5.1 Minimum distance to the device..........................................................................................26
5.1.1 Distance from walls.......................................................................................................26
5.1.2 Distance from heat sources ........................................................................................28
5.1.3 Distance to ceiling .........................................................................................................29
5.2 Installation of tabletop devices.............................................................................................31

4 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
5.2.1 Install device size 6-2/3 GN on stand.....................................................................31
5.2.2 Install device sizes 6 half size to 10 full size GN on stand .................................32
5.2.3 Align and fasten the stand horizontally ...................................................................32
5.2.4 Leveling on minor uneven surfaces..........................................................................34
5.3 Installation of floor devices ...................................................................................................35
5.3.1 Install and align floor devices .....................................................................................35
5.3.2 Secure floor device........................................................................................................39
5.3.3 Align mobile oven rack.................................................................................................40
5.4 Fixing the device in place .......................................................................................................42
5.5 Notes on the extractor hood.................................................................................................42
6 Electrical connection................................................................................................44
6.1 Regulations for the electrical connection ..........................................................................44
6.2 Opening the electrical compartment..................................................................................46
6.3 Connecting the electrical devices to the power grid .....................................................50
6.4 Switching the power supply (USA and Canada only).....................................................51
6.5 Conduit connection (USA and Canada only).....................................................................53
6.5.1 Making conduit connection ........................................................................................53
6.6 Connecting the gas devices to the power grid................................................................55
6.7 Closing the electrical compartment ....................................................................................56
6.8 Connecting the equipotential bonding ..............................................................................57
6.9 Connected loads of different voltage types .....................................................................58
7 Network connection ................................................................................................62
7.1 Notes on the network connection.......................................................................................62
7.2 Connecting the device to the network...............................................................................62
8 Water connection .....................................................................................................64
8.1 Regulations for water connection .......................................................................................64
8.2 Connecting the water inlet ....................................................................................................65
8.3 Notes on water treatment .....................................................................................................66
8.4 Selection of the water filter...................................................................................................67
9 Wastewater connection..........................................................................................69
9.1 Regulations for the wastewater connection.....................................................................69

80.06.083_iCombiPro-iCombiClassic_IM_en-US 5 / 96
9.2 Connecting the wastewater drain .......................................................................................70
9.3 Additional ventilation of the drain section (optional).....................................................72
10 Gas connection for gas devices .............................................................................75
10.1 Gas connection regulations...................................................................................................75
10.2 Connecting the device to the gas supply...........................................................................77
10.3 Gas consumption by gas type...............................................................................................78
11 Flue gas connection for gas devices.....................................................................80
11.1 Regulations for flue gas connection....................................................................................80
11.2 Flue gas connection type A3 and B23................................................................................81
12 Initial start-up............................................................................................................84
12.1 Before commissioning............................................................................................................84
12.2 Performing a self test ..............................................................................................................85
13 Maintenance...............................................................................................................87
13.1 Maintenance notes...................................................................................................................87
13.2 Replacing air filters...................................................................................................................87
14 Decommissioning.....................................................................................................88
14.1 Notes on decommissioning...................................................................................................88
14.2 Disposal.......................................................................................................................................88
15 Accessories ................................................................................................................89
16 Conversion tables.....................................................................................................91

1 | Introduction
6 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
1 Introduction
1.1 Information on this manual
This document is an up-to-date version of the installation manual at the time
of publication. Please note the respective version and date.
This document is part of the unit. Read this manual before carrying out the in-
stallation. The manual enables safe handling of the unit and correct installation.
The images in this manual are examples only and may differ from the device.
This manual is valid for the following devices:
nLM1: iCombi Pro
nLM2: iCombi Classic
nLM2: CombiMaster Plus XS
Storage
Keep the installation manual and operating manual with the unit. During ser-
vice work, the installation manual must be accessible to specialist personnel
authorized by the manufacturer at all times.
Transfer
Pass this installation manual on to the owner of the unit.
Circuit diagram
The starter kit includes a circuit diagram of the device. If the circuit diagram is
lost, it can be accessed by an Authorized RATIONAL technician, found in the
service parts catalog and the TechAssistant app. The TechAssistant app is
available in the App Store and on Google Play.
Explanation of symbols
aA requirement lists all conditions that must be met before an action.
1. An action step describes an action to be carried out by the reader.
>Shows a successful interim result.
2. Further action step.
>> The results shows the result of the action.
1.2 Target audience
nThis document is aimed at trained technicians, who have been certified by
the manufacturer after taking part in trainings and safety trainings.
nThe installation, as well as inspection, maintenance and repair work, may
only be carried out by trained technicians.
nIt is advisable to only have inspection, maintenance and repair work car-
ried out by technicians authorized by the manufacturer.
nThe unit must not be used, cleaned or maintained by children. The unit is
not a toy. It must not be used as a toy even under supervision.

1 | Introduction
80.06.083_iCombiPro-iCombiClassic_IM_en-US 7 / 96
nThe unit must not be used, cleaned or maintained by persons with limited
physical, sensory or mental aptitude, or lack of experience or knowledge,
unless they are supervised by a person responsible for their safety and have
received instruction from this person in the risks associated with the unit.
nIn order to avoid the risk of accidents or damage to property, the manufac-
turer advises that technicians attend regular training and safety training ses-
sions.
1.3 Copyright
It is not permitted to pass on product-specific information to third parties. We
reserve the right to implement technical developments and changes in the inter-
est of progress. All rights are reserved, including those of translation and repro-
duction.
1.4 Conformity
The conformity of the devices refers to the complete device at the time of deliv-
ery. In the event of upgrades, modifications and connection of additional func-
tions, the operator is responsible for obtaining an extension of the approvals.
Observe the relevant country-specific and local standards and regulations con-
cerning the installation and operation of commercial cooking devices.
Conformity Europe
nThe power connection is established and connected in accordance with IEC
60335, taking into account EN 60335, UL, cUL and VDE 0700.
nThe water connection is established and connected in accordance with IEC
61770, taking into account EN 1717 and EN 13077.
nThe wastewater connection corresponds to the current valid WRAS, SVGW
and KIWA regulations and is tested and certified accordingly.
nThe device is approved for use up to 4000 m above sea level according to
IEC 60335.
Conformity USA and Canada
nThe power connection is built and tested according to UL197 and
CSAC22.2no.109.
1.5 Liability and warranty conditions
Liability
Installations and repairs that are not carried out by specialist personnel autho-
rized by the manufacturer or not using original service parts, as well as any tech-
nical changes to the unit that are not approved by the manufacturer, can render
the manufacturer’s product liability null and void.

1 | Introduction
8 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
Warranty
The warranty does not cover damage caused by failure to comply to this in-
stallation manual.
The following are also excluded from the warranty:
nDamage caused by incorrect use, installation, maintenance, repair
nDamage due to incorrect decalcification
nUsing the unit other than intended
nModifications or technical changes to the unit that are not authorized by
the manufacturer
nFailure to use genuine service parts from the manufacturer
nGlass damage, bulbs, gaskets and sealing material
1.6 Identification of the device
Type plate
Permissible water
pressure range
(* in Norway, Denmark,
Finland and Sweden:
1000 kPa)
Device line
Model number
Frequency
Connection voltage
Power
Serial number
Device sizes
Device size type plate Unit size
LMxxxA… XS
LMxxxB… 6 half size
LMxxxC… 6 full size
LMxxxD… 10 half size
LMxxxE… 10 full size
LMxxxF… 20 half size
LMxxxG… 20 full size

1 | Introduction
80.06.083_iCombiPro-iCombiClassic_IM_en-US 9 / 96
Cooking systems overview
Tabletop units Floor units
XS 6 half
size
6 full
size
10 half
size
10 full
size
20 half
size
20 full
size
iCombi
Pro
Electrical
devices
PPPPPPP
iCombi
Pro
Gas
devices
PPPPPP
iCombi
Classic
Electric
devices
PPPPPP
iCombi
Classic
Gas
devices
PPPPPP
CombiMa
ster Plus
P

2 | Safety
10 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
2 Safety
2.1 Display of warning notices
DANGER
Type and source of danger
Failure to observe these warnings will result in severe injuries or death.
Measures to avoid the danger
WARNING
Type and source of danger
Failure to observe these warnings could result in severe injuries or death.
Measures to avoid the danger
CAUTION
Type and source of danger
Failure to observe these warnings could result in minor or moderate
injuries.
Measures to avoid the danger
NOTE
Failure to observe these warnings could result in damage to property.
2.2 General safety information
The device is designed so that it does not pose a danger
when installed correctly. This manual describes proper instal-
lation of the device.
nObserve the relevant country-specific and local regula-
tions and standards in your country.
nSecure the device against tipping when transporting and
after setup.
nWear suitable protective clothing, such as protective
gloves and safety shoes, during transport and installation.
nThe device should only be set up in a protected environ-
ment safe from frost and wind.

2 | Safety
80.06.083_iCombiPro-iCombiClassic_IM_en-US 11 / 96
nDo not set up the device in adverse weather conditions,
such as rain.
nThe device should only be connected in accordance with
the installation manual and the information on the type
plate.
nSwitch off the device when disconnecting it from or con-
necting it to the power supply.
nAfter use, only transport the device in ambient tempera-
tures of over 0°C [32F].
nOnly store the device in ambient temperatures of over 0°C
[32°F].
nDo not operate the device without an air filter.
nDo not spray aerosols in the area around the device while
the device is in operation.
nCheck the unit for transport damage. Inform your specialist
dealer/shipping company immediately if you suspect
transport damage.
2.3 Safety notes on gas devices
Harmful exhaust flue gases
There is a danger of suffocation if the concentration of harmful
flue gases is not vented.
nMake sure that the installation area provides sufficient ven-
tilation.
nAlways carry out a flue gas analysis when commissioning
gas devices.
nIf an extractor hood is used, make sure that the extractor
hood is turned on for gas operation.
nDo not place any objects on the flue gas pipes.
nDo not block the area around the extraction of combustion
air with objects.
Fire hazard due to dirty flue
There is a risk of fire if the flue is not cleaned regularly.

2 | Safety
12 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
nHave the flue cleaned regularly in accordance with national
regulations.
Explosion hazard due to escaping gas
There is a risk of explosion if gas escapes.
nWatch out for the smell of gas.
nAvoid damage to the gas supply line.
nConduct in the event of a gas odor:
1. Shut off the gas supply.
2. Do not touch any electrical switching elements.
3. Ventilate the room well.
4. Avoid open flames and sparks.
5. Immediately inform the responsible gas supplier by means
of an external telephone. If the gas supplier cannot be
reached, call the responsible fire department.
NOTE
Keep the area around the device free from flammable materials.
2.4 Intended use
The device is designed for thermal food preparation. This device is only in-
tended for commercial use, such as in restaurant kitchens or catering opera-
tions for schools, hospitals, 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 device are considered improper and dangerous. The
manufacturer accepts no liability for consequences arising from use other than
intended.

3 | Product description
80.06.083_iCombiPro-iCombiClassic_IM_en-US 13 / 96
3 Product description
3.1 Device description
Device size XS GN
The connections for the installation are located on the rear side of the device:
1
23456
1 Equipotential bonding (Earth
Ground)
2 Water connection
3 Electrical connection 4 Waste water connection
5 Safety overflow for wastewater
connection
6 Network connection
Device size 6 half size to 10 full size GN
The connections for the installation are located on the rear side of the device:
1
2
4
8
6
7
3
5
1 Network connection 2 Only for gas devices: Gas connec-
tion
Only for electrical devices: Electri-
cal connection
3 Power supply 4 Water connection
5 Optional connection 6 Wastewater connection
7 Safety overflow for wastewater
connection
8 Equipotential bonding (Earth
Ground)

3 | Product description
14 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
Device size 20 half size and 20 full size GN
The connections for the installation are located on the underside of the device
and run to the rear:
3
4
7
1
2
5
6
1 Water connection 2 Cable bushing for electrical con-
nection
3 Equipotential bonding (Earth
Ground)
4 Waste water connection
5 Safety overflow for wastewater
connection
6 Network connection
7 Only for gas devices: Gas connec-
tion
3.2 Technical data
Protection class
The device corresponds to water jet connection class IPX5.
Ambient conditions
nDo not set up the device in ambient temperatures below 10 °C [50 °F].
nDo not commission the device in ambient temperatures below 10 °C [50
°F].
nSet up the device in rooms with adequate ventilation via windows or an
extractor hood.
Sound emission value
The sound emission value is <65 dB.

3 | Product description
80.06.083_iCombiPro-iCombiClassic_IM_en-US 15 / 96
3.2.1 Device dimensions
Device size XS GN
Width
(mm) x
Width
(inch)
Depth
(mm) y
Depth
(inch)
Height
(mm) z
Height
(inch)
XS 655 25 3/4 555 21 7/8 567 22 3/8
Depth overall
dimension
(mm)
Depth overall
dimension
(inch)
Overall height
(mm)
Overall height
(inch)
XS 621 24 1/2 594 23 1/2
Device size 6 half size to 10 full size GN
Width
(mm) x
Width
(inch)
Depth
(mm) y
Depth
(inch)
Height
(mm) z
Height
(inch)
6 half size 850 33 1/2 775 30 1/2 754 29 5/8
6 full size 1072 42 1/4 975 38 3/8 754 29 5/8
10 half
size
850 33 1/2 775 30 1/2 1014 39 7/8
10 full size 1072 42 1/4 975 38 3/8 1014 39 7/8

3 | Product description
16 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
Depth overall
dimension
(mm)
Depth overall
dimension
(inch)
Overall height
(mm)
Overall height
(inch)
6 half size 842 33 1/8 804 31 5/8
6 full size 1042 41 804 31 5/8
10 half size 842 33 1/8 1064 41 7/8
10 full size 1042 41 1064 41 7/8
Device size 20 half size, 20 full size GN
Width
(mm) x
Width
(inch)
Depth
(mm) y
Depth
(inch)
Height
(mm) z
Height
(inch)
20 half
size
877 34 1/2 847 33 3/8 1807 71 1/8
20 full
size
1082 42 5/8 1052 41 3/8 1807 71 1/8
Depth overall
dimension
(mm)
Depth overall
dimension
(inch)
Overall height
(mm)
Overall height
(inch)
20 half size 912.5 35 7/8 1872 73 3/4
20 full size 1116.5 44 1872 73 3/4

3 | Product description
80.06.083_iCombiPro-iCombiClassic_IM_en-US 17 / 96
3.2.2 Device weight
iCombi Pro Electrical devices
XS 6 half
size
6 full
size
10 half
size
10 full
size
20 half
size
20 full
size
Weight without
packaging (kg)
62 100 135 130 173 254 325
Weight without
packaging (lbs)
137 220 298 287 381 560 717
iCombi Pro Gas devices
6 half size 10 half
size
6 full size 10 full
size
20 half
size
20 full
size
Weight without pack-
aging (kg)
114 149 151 192 273 358
Weight without pack-
aging (lbs)
251 328 333 423 602 789
iCombi Classic Electric devices
XS 6 half
size
10 half
size
6 full
size
10 full
size
20 half
size
20 full
size
Weight without
packaging (kg)
62 95 123 128 165 246 313
Weight without
packaging (lbs)
137 209 271 282 364 542 690
iCombi Classic Gas devices
6 half size 10 half
size
6 full size 10 full
size
20 half
size
20 full
size
Weight without pack-
aging (kg)
110 143 147 187 267 346
Weight without pack-
aging (lbs)
243 315 324 412 589 763
3.2.3 Thermal load
iCombi Pro Electrical devices
XS 6 half
size
6 full
size
10 half
size
10 full
size
20 half
size
20 full
size
Thermal load latent
(kJ/h)
1020 2050 3450 3450 6350 6850 10900
Thermal load sensi-
tive (kJ/h)
1350 2523 4583 4583 7982 9115 14420

3 | Product description
18 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
iCombi Pro Gas devices
6 half size 10 half
size
6 full size 10 full
size
20 half
size
20 full
size
Thermal load latent (kJ/
h)
2050 3450 3450 6350 6850 10900
Thermal load sensitive
(kJ/h)
2523 4583 4583 7982 9115 14420
iCombi Classic Electric devices
XS 6 half
size
6 full
size
10 half
size
10 full
size
20 half
size
20 full
size
Thermal load latent
(kJ/h)
1110 2050 3450 3450 6350 6850 10900
Thermal load sen-
sitive (kJ/h)
1420 2450 4450 4450 7750 8850 14000
iCombi Classic Gas devices
6 half size 10 half
size
6 full size 10 full
size
20 half
size
20 full
size
Thermal load latent (kJ/
h)
2050 3450 3450 6350 6850 10900
Thermal load sensitive
(kJ/h)
2450 4450 4450 7750 8850 14000
We reserve the right to implement technical developments and changes.

4 | Transport
80.06.083_iCombiPro-iCombiClassic_IM_en-US 19 / 96
4 Transport
CAUTION
Risk of crushing due to the weight of the device
Hands and fingers may be crushed.
nWear suitable protective clothing during transport.
nAt least 3 people are required for the transport.
CAUTION
Risk of tipping during transport
Risk of crushing if the device tips over onto a person.
nNote the center of mass of the device.
nEnsure that the device does not tip over during transport or lifting.
NOTE
Damage to the device due to narrow areas
Note the width and height of the accesses during transport.
Transport options
Unit size XS 6 half size - 10 full
size
20 half size - 20
full size
With transport pallet P P P
Without pallet with lift
truck (only with trans-
port aid)
P P P
Transporting the unit
1. Remove the packaging material.
2. Transport the device to the installation site. Please observe the following
descriptions.
4.1 Center of mass on the device
CAUTION
Risk of crushing and injury if the center of mass is not observed
Failure to observe the center of mass can result in the device tipping over
during lifting and transportation.
nEnsure that the weight of the device is distributed evenly.

4 | Transport
20 / 96 80.06.083_iCombiPro-iCombiClassic_IM_en-US
nNote the center of gravity of the device.
NOTE
Device size XS GN: Damage to the device due to incorrect lifting
During transport, make sure that the air filter box and the USB port remain
intact.
4.2 Transport with pallet
CAUTION
Inclined plane during transport using transport aid
Risk of crushing and injury during transport using a transport aid over an
incline or uneven floor.
nDo not run over an incline of more than 10°.
nTake care when transporting the device.