Welbilt Convotherm maxx pro Series User manual

Combi oven
Convotherm maxx pro
C4 table-top units
Installation manual - Original, ENG
Advancing Your Ambitions

Table of Contents
1 General information 6
1.1 Environmental protection 6
1.2 Identifying your combi oven 6
1.3 Structure of customer documentation 8
1.4 About this installation manual 8
1.5 Essential reading relating to safety 8
2 Design and function 10
2.1 Design and function of the combi oven 10
2.2 Layout and function of the operating panel 12
3 For your safety 14
3.1 Basic safety code 14
3.2 Intended use of your combi oven 15
3.3 Warning signs on the combi oven 15
3.4 Owner obligations 16
3.5 Hazards arising from the appliance 17
3.6 Safety devices 20
3.7 Requirements to be met by personnel, working positions 21
3.8 Personal protective equipment 22
4 Transportation 24
4.1 Conveying the appliance to the installation location 24
4.2 Preparing to unpack 24
4.3 Scope of delivery 24
5 Setting up the appliance 25
5.1 Adjacent systems 25
5.2 Requirements for the installation location 25
5.3 Taking the appliance off the pallet 29
5.4 Setting up a table-top unit on a work surface 30
5.5 Setting up a table-top unit on a work surface (marine model) 32
5.6 Setting up a table-top unit on a stand 35
5.7 Setting up a table-top unit on a stand (marine model) 36
5.8 Setting up appliances in the stacking kit 40
6 Installation 42
6.1 Electrical installation 42
6.1.1 Planning the electrical installation 42
6.1.2 Carrying out the electrical installation 43
6.1.3 Connection to an energy optimization system (electric appliances only) 44
6.1.4 Connecting the signal tower 45
6.1.5 Connecting the water-treatment filter monitor 47
6.2 Gas installation 48
6.2.1 Planning the gas installation 48
6.2.2 Positions of the fan burners and main gas valve 49
6.2.3 Installing the gas 49
6.2.4 Measuring the supply flow pressure 50
6.2.5 Measuring the exhaust gas values 50
6.3 Network connection 51
6.3.1 Planning the network connection 51
6.3.2 Connecting to the network 51
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Installation manual 3

6.4 Water connection 52
6.4.1 Water supply 52
6.4.2 Test the water quality 55
6.4.3 Drain connection 55
6.5 Installing the fully automatic oven cleaning system 56
6.5.1 Layout of the fully automatic oven cleaning system 56
6.5.2 Connecting the fully automatic oven cleaning system 58
6.6 Installing the grease collecting canister 59
6.6.1 Connecting the grease collecting canister 59
7 Putting into service 61
7.1 Safe working when putting the appliance into service 61
7.2 Procedure for putting the appliance into service 61
7.3 Measuring appliance gaps 63
8 Removal from service and disposal 64
8.1 Removal from service and disposal 64
9 Technical data 65
9.1 Dimensions and weights 65
9.2 Maximum permissible loading weight 67
9.3 Electrical supply, EB/ES 67
9.4 Electrical supply, GB/GS 69
9.5 Electrical supply, Japan 69
9.6 Electrical supply, Korea 70
9.7 Electrical supply, Mexico/Nicaragua 71
9.8 Electrical supply, marine 72
9.9 Gas specification, natural gas 2H (E), natural gas 2L (LL), propane 3P, liquefied gas 3B/P 73
9.10 Gas specification, The Netherlands 74
9.11 Gas specification, Australia/New Zealand 75
9.12 Gas specification, Japan 75
9.13 Gas specification, Korea 75
9.14 Gas consumption 76
9.15 Exhaust gas output rate 76
9.16 Heat output, natural gas 2H [E], natural gas 2L (LL), propane 3P, liquefied gas 3B/P 77
9.17 Heat output, The Netherlands 77
9.18 Heat output, Australia/New Zealand 78
9.19 Heat output, Japan 78
9.20 Heat output, Korea 78
9.21 Dissipated heat 79
9.22 Water connection 79
9.23 Water quality 80
9.24 Boiler 81
9.25 Water consumption, cooking 81
9.26 Water consumption, cooking and cleaning 82
10 Connection diagrams 83
10.1 Convotherm 4 6.10 electric appliance 83
10.2 Convotherm 4 6.10 boiler gas appliance 87
10.3 Convotherm 4 6.10 injection gas appliance 89
10.4 Convotherm 4 6.20 electric appliance 91
10.5 Convotherm 4 6.20 boiler gas appliance 95
10.6 Convotherm 4 6.20 injection gas appliance 97
10.7 Convotherm 4 10.10 electric appliance 99
10.8 Convotherm 4 10.10 boiler gas appliance 103
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Installation manual 4

10.9 Convotherm 4 10.10 injection gas appliance 105
10.10 Convotherm 4 10.20 electric appliance 107
10.11 Convotherm 4 10.20 boiler gas appliance 111
10.12 Convotherm 4 10.20 injection gas appliance 113
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Installation manual 5

1 General information
1.1 Environmental protection
Statement of principles
Our customers' expectations, the legal regulations and standards and our company's own reputation set the quality and service for
all our products.
We have an environmental management policy that not only ensures compliance with all environmental regulations and laws, but
also commits us to continuous improvement of our green credentials.
We have developed a quality and environmental-management system in order to guarantee the continued manufacture of high-
quality products, and to be sure of meeting our environmental targets.
This system satisfies the requirements of ISO 9001:2015 and ISO 14001:2015.
Environmental protection procedures
We observe the following procedures:
■Use of residue-free compostable wadding materials
■Use of RoHS-compliant products
■REACH chemical law
■Recommendation and use of bio-degradable cleaning agents
■Recycling of electronic waste
■Environmentally friendly disposal of old appliances via the manufacturer
Join us in our commitment to protect the environment.
1.2 Identifying your combi oven
Position of type plate
The type plate is located on the left-hand side of the combi oven.
Layout of the type plate on electric appliances
Item Name
1Name of appliance
Combi oven
2Trade name
Element Meaning
C4 Convotherm maxx pro appliance series
eT easyTouch controls
eD easyDial controls
numbers xx.yy Appliance size
EB Electric appliance with boiler
ES Electric appliance with water injection
-N for appliances with an NSF certificate
3Electrical values
4Certification marks
5Serial number
Element Meaning
Heating method Electric appliance (X)
Steam generation method ■Injection (S)
■Boiler (B)
Appliance size ■6.10 (1)
■6.20 (2)
■10.10 (3)
■10.20 (4)
1 General information
Installation manual 6

Year of manufacture ■2021 (21)
■2022 (22)
■...
Month of manufacture ■January (01)
■February (02)
■March (03)
■...
Sequential number 4 digits
6Part number
Layout of the type plate on gas appliance
Type plate Additional plate Name
1Name of appliance
Combi oven
2Trade name
Element Meaning
C4 Convotherm maxx pro ap-
pliance series
eT easyTouch controls
eD easyDial controls
numbers xx.yy Appliance size
GB Gas appliance with boiler
GS Gas appliance with water
injection
-N for appliances with an
NSF certificate
3Electrical values
4Certification marks
5Serial number
Element Meaning
Heating method Gas appliance (Y)
Steam generation
method
■Injection (S)
■Boiler (B)
Appliance size ■6.10 (1)
■6.20 (2)
■10.10 (3)
■10.20 (4)
Year of manufacture ■2021 (21)
■2022 (22)
■...
Month of manufac-
ture
■January (01)
■February (02)
■March (03)
■...
Sequential number 4 digits
6Part number
7Gas data
8Country code
9Gas category
10 Gas factory setting for the appliance
1 General information
Installation manual 7

1.3 Structure of customer documentation
Contents of the appliance documentation
Book type Contents
Installation manual ■Describes how to move, set up and install the appliance, and how to put the appliance into serv-
ice
■Describes the hazards and appropriate preventive measures relevant to all installation tasks
■Contains the technical data
User manual ■Describes the working procedures and operating steps for cooking and cleaning
■Contains the servicing schedule and information on troubleshooting
■Describes the hazards and appropriate preventive measures relevant to operation
Operating instructions ■Describes the appliance user interface
■Contains instructions on how to use the software
Documentation for accessories
Please refer to the relevant instructions for the accessory concerned (e.g. recoil hand shower, hood, wheeled stand, stacking kit) for
information on how to install the accessory.
1.4 About this installation manual
Who should read this manual
Name of target group Tasks
Start-up engineer
(Service engineer)
■Overall responsibility for putting the combi oven into service
■Instructing the user
Owner of the combi oven
or
owner's member of staff who is
responsible for the appliance and
for the operating personnel
■Made aware of all safety-related functions and devices of the combi oven by the start-up engineer
■Instructed by the start-up engineer on how to operate the appliance
■Provides assistance as instructed with conveying the appliance within the establishment and set-
ting up the appliance.
See 'Owner obligations' on page 16 for further details
Equipment mover Conveying within the establishment
Service engineer ■Setting up the appliance
■Installation of the network port
■Installing the fully automatic oven cleaning system (optional)
■Putting the appliance into service and removing the appliance from service
Electrical installation engineer ■Connecting the appliance to the building's electrical supply
■Disconnecting the electrical connection
Plumber ■Connecting the appliance to the building's water supply
■Disconnecting the water connection
■Connecting the appliance to the building's drain connection
■Disconnecting the drain connection
Gas installation engineer Installing and removing the gas connection
Notation for decimal points
A decimal point is always used in order to achieve international standardization.
1.5 Essential reading relating to safety
Safety information in the customer documentation
Safety information relating to the combi oven appears only in the installation manual and the user manual.
The installation manual contains the safety information for the tasks covered by the manual and which are performed when moving,
setting up and installing the appliance and when putting the appliance into service and removing the appliance from service.
The user manual contains the safety information for the tasks covered by the manual and which are performed during cooking,
cleaning and servicing work.
1 General information
Installation manual 8

The safety information contained in the user manual and installation manual must always be considered to be part of the operating
instructions. The safety information contained in the user manual and installation manual must always be observed when perform-
ing tasks that go beyond merely operating the software.
Parts of this document that must be read without fail
If you do not follow the information in this document, you risk potentially fatal injury and property damage.
To guarantee safety, all people who work with the combi oven must have read and understood the following parts of this document
before starting any work:
■the chapter 'For your safety' on page 14
■the sections that describe the activity to be carried out
Danger symbol
Danger symbol Meaning
Warns of potential injuries. Heed all the warning notices that appear after this symbol to avoid
potential injuries or death.
Form of warning notices
The warning signs are categorized according to the following hazard levels:
Hazard level Consequences Likelihood
Death / serious injury (irreversible) Immediate risk
Death / serious injury (irreversible) Potential risk
Minor injury (reversible) Potential risk
NOTICE Damage to property Potential risk
1 General information
Installation manual 9

2 Design and function
2.1 Design and function of the combi oven
Components and function (electric appliances)
The following illustration shows a size 6.10 combi oven as an example for all electric appliances:
Item Name Function
1Ventilation port ■External air intake for removing the moisture from the cooking chamber
■Smooths out any pressure fluctuations in the cooking chamber
2Air vent Allows hot vapour to escape
3Door handle ■Opens and closes the appliance door
■Venting position for opening the appliance safely (“safety catch”)
■Sure-shut function
■Antibacterial material containing silver ions ("HygieniCare")
4Appliance door ■Closes the cooking chamber
■Can slide back beside the appliance when opened in order to save space ("disappear-
ing door") (optional)
5Operating panel ■Used for operating the appliance
■Antibacterial ("HygieniCare")
6Suction panel ■Distributes the heat evenly inside the cooking chamber
■Separates the fan compartment from the cooking chamber
7Rack Holds standard-sized food containers
8Camera (not shown) Recognizes the food to be cooked with the ConvoSense assistance system (optional)
9Core temperature probe, sous-vide
sensor (optional)
■Measures the core temperature of the food being cooked
■Available in two connection options: permanent internal connection or temporary ex-
ternal connection
10 Appliance feet Can be adjusted in height to allow the appliance to be positioned horizontally
11 Cooking chamber Contains the food during cooking operation
12 Recoil hand shower
(this is not fitted on certain applian-
ces)
■Intended solely for rinsing out the cooking chamber with water
■Retracts automatically into the holder after use
■Antibacterial ("HygieniCare")
13 Ventilation slots underneath the ap-
pliance
■Used for appliance ventilation
■Must not be covered
14 Side panel Covers the appliance wiring compartment
15 Type plate Identifies the appliance
16 Network connection Used for connecting to a network or to the cloud
2 Design and function
Installation manual 10

Components and function (gas appliances)
The following illustration shows a size 6.10 combi oven as an example for all gas appliances:
Item Name Function
1Ventilation port ■External air intake for removing the moisture from the cooking chamber
■Smooths out any pressure fluctuations in the cooking chamber
2Exhaust outlet Takes away hot exhaust gases
3Air vent Allows hot vapour to escape
4Door handle ■Opens and closes the appliance door
■Venting position for opening the appliance safely (“safety catch”)
■Sure-shut function
■Antibacterial material containing silver ions ("HygieniCare")
5Appliance door ■Closes the cooking chamber
■Can slide back beside the appliance when opened in order to save space ("disappear-
ing door") (optional)
6Operating panel ■Used for operating the appliance
■Antibacterial ("HygieniCare")
7Suction panel ■Distributes the heat evenly inside the cooking chamber
■Separates the fan compartment from the cooking chamber
8Rack Holds standard-sized food containers
9Core temperature probe, sous-vide
sensor (optional)
■Measures the core temperature of the food being cooked
■Available in two connection options: permanent internal connection or temporary ex-
ternal connection
10 Cooking chamber Contains the food during cooking operation
11 Recoil hand shower
(this is not fitted on certain applian-
ces)
■Intended solely for rinsing out the cooking chamber with water
■Retracts automatically into the holder after use
■Antibacterial ("HygieniCare")
12 Appliance feet Can be adjusted in height to allow the appliance to be positioned horizontally
13 Ventilation slots underneath the ap-
pliance
■Used for appliance ventilation
■Must not be covered
14 Side panel Covers the appliance wiring compartment
15 Type plate Identifies the appliance
16 Network connection Used for connecting to a network or to the cloud
2 Design and function
Installation manual 11

Components and function of the special security mechanism (prison model only)
The following illustration shows the optional special security mechanism for a size 6.10 gas combi oven as an example of all appli-
ance sizes:
Item Name Function
1Lockable cover to the operating pan-
el The hinged cover can be closed over the operating panel and locked to the appliance case in order to prevent unauthorized use of the combi oven.
2Padlock ■To lock the operating panel cover to the appliance case
■Not supplied
3Padlock ■To lock the appliance door to the appliance case
■Not supplied
4Locking mechanism for the appli-
ance door Provides a two-stage lock for the appliance door to prevent unauthorized opening and closing of the appliance door
Behaviour of the appliance door:
■When the top locking position is used, the appliance door remains fully closed.
■When the bottom locking position is used, the appliance door can be opened as far as
the venting position.
Material
The interior and exterior structure of the appliance is made of stainless steel.
2.2 Layout and function of the operating panel
Layout and elements of the easyTouch operating panel
Item Name Function
1Appliance
ON/OFF switch Switches the combi oven on and off
2USB port For connecting a USB stick
3Full touch screen dis-
play Central controls for appliance
■Appliance operated by touching icons on the control
panel (full touch screen display)
■Status displays
2 Design and function
Installation manual 12

Layout and elements of the easyDial operating panel
Item Name Function
1Appliance
ON/OFF switch Switches the combi oven on and off
2Control panel Central controls for appliance
■Buttons for entering the cooking programs
■Displays showing the values you have set
■Prompts for the user
3USB port For connecting a USB stick
4C-Dial Combined rotary knob and pushbutton for adjusting and
setting the cooking parameters.
2 Design and function
Installation manual 13

3 For your safety
Purpose of this chapter
This chapter provides you with all the information you need in order to use the combi oven safely without putting yourself or others
at risk.
This is a particularly important chapter that you should read through carefully.
3.1 Basic safety code
Object of this safety code
This safety code aims to ensure that all persons who use the combi oven have a thorough knowledge of the hazards and safety
precautions, and that they follow the warning notices given in the user manual and on the combi oven. If you do not follow this
safety code, you risk potentially fatal injury and property damage.
Referring to the user manuals included in the customer documentation
Follow the instructions below:
■Read in full the chapter 'For Your Safety' and the chapters that relate to your work.
■Always keep to hand the manuals included in the customer documentation for reference.
■Pass on the user manuals included in the customer documentation with the combi oven if it changes ownership.
Ground rules for installation
Installation must comply with all national and regional laws and regulations and comply with the local regulations of the relevant
utility companies and local authorities and with other relevant requirements.
In Australia and New Zealand, these regulations also include (amongst other regulations):
■AS 5601/AG 601
Working with the combi oven
Follow the instructions below:
■Only those persons who satisfy the requirements stipulated in this user manual are permitted to use the combi oven.
■Only use the combi oven for the specified use. Never, under any circumstances, use the combi oven for other purposes that
may suggest themselves.
■Take all the safety precautions specified in this user manual and on the combi oven. In particular, use the prescribed personal
protective equipment.
■Only stand in the working positions specified.
■Do not make any changes to the combi oven, e. g. removing parts or fitting unapproved parts. In particular, you must not disa-
ble any safety devices.
More on this ...
Related topics
Intended use of your combi oven 15
Warning signs on the combi oven 15
Owner obligations 16
Hazards arising from the appliance 17
Safety devices 20
Requirements to be met by personnel, working positions 21
Personal protective equipment 22
3 For your safety
Installation manual 14

3.2 Intended use of your combi oven
Intended use
■The combi oven is designed and built solely for cooking different foodstuffs in standard-sized food containers (e.g. Gastronorm
containers, standard baking trays). Steam, convection and combi-steam (non-pressurized superheated steam) are used for this
purpose.
■The food containers can be made of stainless steel, ceramic, plastic, aluminium, enamelled steel or glass. Glass food contain-
ers must not exhibit any form of damage.
■The combi oven is intended solely for professional, commercial use.
Restrictions on use
Some materials are not allowed to be heated in the combi oven:
■NO dry powder or granulated material
■NO highly flammable objects with a flash point below 270 °C, such as highly flammable oils, fats, plastics, cleaning products or
alcohol-based fluids
■NO food in sealed tins or jars
Requirements to be met by personnel
■The combi oven must only be operated and installed by personnel who satisfy specific requirements. Please refer to 'Require-
ments to be met by personnel, working positions' on page 21 for the training and qualifications requirements.
■Personnel must be aware of the risks and regulations associated with handling heavy loads.
Requirements relating to the operating condition of the combi oven
■The combi oven must only be operated when all safety devices and protective equipment are fitted, in working order and fixed
properly in place.
■The manufacturer regulations for operating and servicing the combi oven must be observed.
■The combi oven must not be loaded over the maximum permissible loading weight for the given model or shelf allowance; see
'Technical Data' on page 65.
Requirements relating to the operating environment of the combi oven
Specified operating environment for the combi oven
■The ambient temperature lies between +4 °C and +35 °C
■NOT a toxic or potentially explosive atmosphere
■Dry kitchen floor to reduce the risk of accidents
Specified properties of the installation location
■NO fire alarm, NO sprinkler system directly above the appliance
■NO flammable materials, gases or liquids above, on, beneath or in the vicinity of the appliance
Mandatory restrictions on use
■Shelter from rain and wind must be provided if operated outdoors
■Appliance must NOT be shifted or moved during use
Cleaning requirements
■Use only cleaning agents that have been approved by the manufacturer.
■Use only materials specified by the manufacturer for cleaning; please refer to the 'Cleaning instructions' in the User manual.
■High-pressure cleaners must NOT be used for cleaning.
■Water jets must NOT be used for cleaning the exterior. The water spray of the recoil hand shower or an external water spray is
permitted solely for cleaning the cooking chamber.
■The combi oven must NOT be treated with acids or exposed to acid fumes, except for the purpose of descaling the cooking
chamber by an authorized service company in accordance with the manufacturer's instructions.
3.3 Warning signs on the combi oven
Positioning of warning signs
The following illustration shows a size 6.10 electric combi oven as representative of all table-top units:
3 For your safety
Installation manual 15

Obligatory warning signs
The following warning signs must be attached to the combi oven and optional accessories in the area indicated so as to be easily
visible at all times.
Range Warning sign Description
1High voltage / electric shock hazard warning
There is a risk of electric shock from live parts if the safety cover is opened.
2Hot steam and vapour hazard warning
There is a risk of scalding from hot steam and vapour escaping when the appliance door is
opened.
2Standard model
Warning of hot liquids
Spillage of hot liquid foods can result in scalds if the upper shelf levels are loaded with liquids
or with foods that produce liquid during cooking. Do not use shelf levels that lie above your
sightline for liquid foodstuffs or food that will liquefy during cooking.
2Bakery model
Warning of hot food, hot food containers
There is a risk of burns from hot food and hot food containers if food containers tip out of the
shelf levels or food slips off food containers that are not held level. This risk is particularly high
for shelf levels that lie above the sightline of the user.
3.4 Owner obligations
Personnel for working at the combi oven
The owner must ensure that all work relating to conveying, setting up and installing the appliance, and taking the appliance out of
service, is performed solely by qualified personnel as specified in 'Requirements to be met by personnel, working positions' on page
21.
Personnel for working on electrical parts
The owner/operator must ensure that only qualified electricians carry out installation, putting into service, servicing, maintenance or
repair work on the combi oven.
3 For your safety
Installation manual 16

Electrical installation, putting into service, servicing, maintenance, repair and testing work on the combi ovens must be carried out
solely by authorized service representatives and in accordance with the documentation specified by Convotherm for initial start-up,
servicing, maintenance and repair.
The required tasks must be performed solely by qualified electricians who are suited to do so because of their training and recent
professional experience and who have the requisite knowledge of relevant standards, rules and accident prevention regulations.
Every qualified electrician who carries out installation, initial start-up, service, maintenance or repair work must have read and un-
derstood the installation manual.
Rules for working on electrical parts
The combi oven’s electrical connection must be made in accordance with the respective valid regulations, accepted engineering
standards and the procedures listed in the installation manual.
Before putting the appliance into service and after any servicing, maintenance or repair work, electrical safeguards and all protec-
tive equipment (mechanical and electrical) must be checked for compliance and proper function, and, if stipulated by applicable
regulations, relevant measurement-based verification and documentation provided.
Before starting any work, the appliance must be disconnected from the power supply, protected against being switched on again,
and checked to verify that it is actually de-energized.
After de-energization has been ascertained, a waiting time of at least 15 minutes is mandatory to allow full discharge of the DC bus
capacitors.
To ensure operational and functional safety, all electrical connections must be checked and all mandatory electrical tests required
for putting the appliance into service and operating the appliance must be carried out.
Regulations for the gas installation
The building regulations and technical requirements that apply at the installation site concerned for installing gas appliances must
be observed. The gas installation must be performed in accordance with the regulations of the gas provider.
The gas fitter must not open any parts sealed by the manufacturer or the manufacturer’s authorized agents.
The following regulations apply in Germany to the fixed connection and to the LPG gas connection:
■Technische Regeln Gasinstallation TRGI (German technical regulations for gas installation); equivalent to DVGW Arbeitsblatt
G600
■Technische Regeln Flüssiggas TRF (Technical regulations for liquid gas)
■Druckbehälterverordnung including the TRG (Pressurized container regulation plus technical regulations for pressurized gases)
■DVGW Arbeitsblatt G631 (DVGW worksheet)
■DVGW Arbeitsblatt G21 (DVGW worksheet)
■Unfallverhütungsvorschrift "Verwendung von Flüssiggas" (Accident prevention regulations "Use of LPG" (BGV D34/previously
VGB 21))
■Unfallverhütungsvorschrift "Gase" (Accident prevention regulations "Gases" (BGV B6/previously VGB 61))
■Unfallverhütungsvorschrift Arbeiten an Gasleitungen (German accident prevention regulations “Work on gas pipelines” (BGR
500 section 2.31/GUV-R500 section 2.31))
■VDI Directive 2052: Kitchen air conditioning and ventilation systems
■Feuerungsanlagenverordnung (FeuVO, FAV = Combustion equipment regulation) for each of the federal states
3.5 Hazards arising from the appliance
General rules for working with the appliance
The combi oven is designed to protect the user from all hazards that can reasonably be avoided by design measures.
The actual purpose of the combi oven, however, means that there are still residual risks; you must therefore take precautions to
avoid them. A safety device can provide you with a certain degree of protection against some of these hazards. You must always
ensure, however, that these safety devices are in place and in working order.
The nature of these residual risks and what effect they have are described below.
3 For your safety
Installation manual 17

Escaping gas while putting into service
The following hazards can result due to gas escaping while putting the appliance into service:
Explosion hazard from gas
What can cause this?
■If the appliance is moved and connections become leaky as a result
■If the gas pipe is damaged.
How can I avoid the hazard?
Never move the appliance during use or cleaning
For appliances on a wheeled platform, see the corresponding documentation for accessories
If you smell gas, take the appropriate steps; see 'What to do if you smell gas' on page 61
Escaping gas when installing the appliance and removing the appliance from service
Escaping gas due to faulty installation and removal of the appliance from service can cause the following hazards:
Explosion hazard from gas
What can cause this?
■If gas pipes are leaking
■If the customer's gas tap is opened before the gas connection has been fully installed
■During removal from service, if the gas supply system has not been disconnected before starting work on the gas
installation
How can I avoid the hazard?
Any work on the gas installation must be entrusted solely to certified gas installation engineers from an
authorized service company
Install gas shut-off device close to appliance
For appliances on a wheeled platform with a flexible supply hose, ensure that a retaining device which restricts
the range of movement of the platform with the appliance is connected; see the corresponding documentation for
accessories.
After connecting to the gas supply and after any subsequent operation on gas components, always leak-test
every connection and supply point for the gas components to ensure they are gastight.
Ensure that all the specified points inside and outside the appliance are gastight before putting the combi oven
into service.
Always disconnect the gas supply system before starting work on the gas installation for the purpose of removal
from service
Lack of oxygen
In the kitchen, gas appliances can cause the following hazards:
Risk of suffocation from lack of breathable air
Where?
■Where appliance is installed
How can I avoid the hazard?
Check the exhaust gas readings and if the readings are not acceptable, get a certified gas installation engineer
from an authorized service company to adjust the burner
Ensure that a ventilation system is in place, is working properly and is running, and that the ventilation
requirements stipulated by the gas installation engineer are met
Do not obstruct lower area of equipment
Only operate appliance in a draught-free environment
3 For your safety
Installation manual 18

Moving heavy loads
When conveying and setting up the appliance, the following hazards can arise when moving heavy loads:
Risk of injury from overstressing your body
When?
■When moving or lifting the appliance
How can I avoid the hazard?
Use a forklift truck or pallet truck to place the appliance in the installation position or to move it to a new position
Always use the correct number of persons and observe the limits specified for lifting and carrying when adjusting
the appliance position (guide value: 15 to 55 kg max., depending on age and gender)
Observe the local occupational safety regulations
Wear personal protective equipment
Loss of stability of appliance
When conveying and setting up the appliance, the following hazards can arise when moving the appliance:
Risk of body parts being crushed if the appliance is dropped
When?
■When moving or lifting the appliance
How can I avoid the hazard?
Use suitable handling gear
Move the appliance slowly and carefully, and secure it against tipping over
Be aware of the centre of gravity to keep the appliance balanced
Avoid jolts
Live parts
The following hazards can arise at the appliance when performing any installation work:
Risk of electric shock from live parts
Where?
■Under covers
■Under the operating panel
■On the mains power lead
How can I avoid the hazard?
Switch off all connections to the power supply
Take protective measures at every power switch to ensure that the power cannot be switched on again
Wait 15 minutes to allow the DC bus capacitors to discharge
Ensure that all electrical connections are in perfect condition and fixed securely
Make sure that the statutory safety checks have been carried out.
Protective equipotential bonding not in place
The following hazards can arise at the appliance when performing any installation work:
Risk of electric shock from live parts
Where?
■On the appliance and on adjacent metal parts
■On the appliance and on adjacent metallic accessories
How can I avoid the hazard?
Before preparing the appliance for first-time use, make sure that the appliance, including all metallic accessories,
is connected to a equipotential bonding system
3 For your safety
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Contact with cleaning agents
The following hazards can arise at the appliance when performing any installation work:
Risk of chemical burns or irritation to skin, eyes and respiratory system from contact with cleaning agents
and their fumes.
When?
■When fitting the cleaning system
■When handling cleaning-fluid canisters
■When abrasive cleaning products are used
How can I avoid the hazard?
Wear personal protective equipment
Observe the labels on the cleaning agents and the relevant safety datasheets
Always use the specified cleaning products
General hazards
Over and above the hazards mentioned here, also be aware of the general dangers associated with the kitchen environment;
please refer to the chapter 'For your safety' in the User manual.
3.6 Safety devices
Meaning
The combi oven has a number of safety devices to protect the user from hazards. It is absolutely essential that all safety devices
are fitted, secured correctly and in working order when operating the combi oven.
Position and function
The following illustration shows a size 6.10 electric combi oven as representative of all table-top units:
Item Protective device Function Check
1Cover can only be removed
using tool
■Prevents live parts from being
touched accidentally
■Prevents access to the moving fan
from the wiring compartment
Check that the cover is in place
2Operating panel can only be
removed using a tool Prevents live parts from being touched accidentally Ensure that the operating panel is in place
3Appliance door Protects the user and outside environ-
ment from hot steam Check the door pane regularly for scratches, cracks, indentations etc. and
replace it if any are found
4Suction panel in cooking
chamber; can only be re-
moved using a tool
Prevents access to the moving fan and
ensures good heat distribution See 'Releasing and securing the suction panel' in the user manual
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