Kuppersbusch EDG 6500.0 User manual

Steam Cooker
EDG 6500.0

Service Manual: H3-63-02
Responsible: Dieter Rutz KÜPPERSBUSCH HAUSGERÄTE AG
Email: [e-mail]
Phone: [phone] Kundendienst
Fax: [phone] Postfach 100 132
Date: 23.10.2006 45801 Gelsenkirchen

Service Manual 3
For internal use only
Contents
1. Safety instructions ......................................................................................................... 4
2. Introduction..................................................................................................................... 5
2.1 General information............................................................................................... 5
2.2 Technical data ....................................................................................................... 5
3. Installation....................................................................................................................... 6
3.1 Installation instructions for technicians.................................................................. 6
3.2 Installation ............................................................................................................. 7
4. Fittings and operation of the EDG 6500.0 .................................................................... 8
4.1 Appliance parts...................................................................................................... 8
4.2 The appliance at a glance ..................................................................................... 9
4.3 Display and control elements ................................................................................ 9
5. User settings and functions ........................................................................................ 10
5.1 Setting the time of day......................................................................................... 10
5.2 Characteristics..................................................................................................... 10
5.3 Lock /child safety device ..................................................................................... 10
5.4 Cleaning the water channel................................................................................. 10
6. Cooking cycle ............................................................................................................... 11
7. Structure – subassembly – structural components.................................................. 13
7.1 Water tank ........................................................................................................... 13
7.2 Electric valve ....................................................................................................... 13
7.3 Steam generator.................................................................................................. 13
7.4 Electric heating pad............................................................................................. 13
7.5 Double thermostat ............................................................................................... 14
7.6 Thermistor ........................................................................................................... 14
7.7 Door switch.......................................................................................................... 14
7.8 Cross-flow fan ..................................................................................................... 14
7.9 Sensors ............................................................................................................... 15
7.10 Lighting................................................................................................................ 15
8. Customer service test program .................................................................................. 16
8.1 Important information .......................................................................................... 16
8.2 Preparation.......................................................................................................... 16
8.3 Program sequence .............................................................................................. 16
9. Error displays ............................................................................................................... 18

4 Service Manual
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1. Safety instructions
Danger!
Repairs may only be carried out by a qualified electrician!
Inexpert repairs may lead to danger and injury to the user!
To prevent electric shocks, please observe the following instructions:
• In the event of a fault, housing and frame may be live!
• Touching live components inside the appliance may cause dangerous currents to flow through your
body!
• Prior to repairs, disconnect the appliance from the mains!
• When inspecting live parts, a residual current operated device must be used at all times!
• The ground wire resistance must not exceed that specified in the standard! It is of vital importance
for ensuring the safety of people and the functioning of the appliance.
• On completion of repairs, an inspection must be carried out in accordance with VDE 0701
[Association of German Electrical Engineers] or the corresponding regulations for your country!
• On completion of repairs, a function and impermeability inspection must be carried out.
Make sure you observe the following instructions:
• The appliances must be disconnected from the mains prior to all repairs. If inspections need to be
carried out on live appliances, make sure you use a residual current operated device.
Caution!
Sharp edges: Use protective gloves.
Components may be electrostatic!
Observe handling precautions!

Service Manual 5
For internal use only
2. Introduction
2.1 General information
Depressurised steam cooking involves cooking food with a combination of steam and hot air. Gentle
steam cooking at temperatures of between 40°C and 100°C optimally preserves vitamins and minerals
as well as maintaining colours and natural aromas. Food does not dry out and nor will it burn or stick.
Since only a relatively small amount of water needs to be heated, steam cooking means that a great deal
of time and energy can be saved.
Depressurised steam cooking takes place at temperatures of between 40°C and 100°C, thus making it
easy to cook food just as it is required. The humidity sensor steams the food in just the right conditions,
irrespective of the quantity of food being cooked. Instead of being destroyed, vitamins and minerals are
largely preserved. Flavour, colour and consistency are maintained – food does not lose its structure.
There is therefore almost no need to add salt and spices.
To sum up: cooking with steams makes conscious, healthy eating possible without any extra effort. The
steam cooker provides excellent possibilities in combination with the ökotherm®cooker or oven.
The oven can become soiled through spattering fat, especially when meat is being roasted. Dirt which
has become dried can be removed more easily if the cooker, prior to cleaning, is operated with the
“steam” cooking mode at a temperature of 100°C for approximately 30 minutes.
This will soften the stains. The interior of the oven will take on a golden colour when it has been used for
some time.
2.2 Technical data
Appliance dimensions Oven dimensions Niche dimensions
Height 38.6cm 18.2cm 38.0cm
Width: 59.5cm 38.5cm 56.0cm minimum
Depth: 40.5cm 33.5cm 55.0cm minimum
Oven: 23.5l
Water tanks removable, for approx. 1 litre of water
Electric connection
Mains voltage 220-240V ~50Hz
Power requirement 1.77kW
Heating output
Hot-air output 2.2kW
Steam generator: 1.4kW
Floor heater: 0.14kW

6 Service Manual
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3. Installation
3.1 Installation instructions for technicians
• Statutory regulations and the connection specifications issued by local power supply companies
must be strictly observed.
• Always disconnect the appliance from the mains when installing it, carrying out repair work or
replacing a light bulb. Pull out the plug of the appliance or disconnect the fuse.
• The appliance must be installed in such a manner that it is fully protected against accidental
contact.
• The appliance is supplied ready to be plugged in. It may only be connected to a properly-protected
wall socket. Installing and wiring sockets, exchanging terminal wires and zero conductors and
replacing connection cables may only be performed by an electrician who must observe the
relevant regulations.
• The electrical connection must be provided with a 10A safety fuse.
• Should the plug not be accessible subsequent to installation, a universal disconnection device with
a contact clearance of at least 3mm must be available at the installation point in order to fulfil
relevant safety regulations.
• Built-in kitchen units for steam cookers must be resistant to heat of up to 100°C. This applies
particularly to veneers, edge strips, plastic coatings, adhesives, and paints and varnishes.
Adjacent unit fronts must be resistant to temperatures of up to at least 70°C.
• It is essential that the appliance be installed horizontally on a firm, level base which is absolutely
rigid.
• The kitchen unit must be fixed to the wall, using an angle bracket if required.
• A safety switch that conforms with regulations will need to be fitted onto the mains cable if the
appliance is to be permanently connected. If not, the mains plug will need to be accessible when
the appliance has been installed.
• Do not use the appliance if the electrical mains cable or the plug has been damaged; the
respective damaged part is to be immediately repaired or replaced.

Service Manual 7
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3.2 Installation
in a suitable niche
The appliance may either be installed under a worktop or in a cabinet niche.
1. A 50mm x 50mm hole is to be cut out of the rear panel and the connection cable of the appliance is
to be pushed through this cut-out.
2. Position the appliance and align it horizontally.
3. Slide the oven right into the cabinet niche. Do not jam the lead of the appliance!
4. Check to ensure that the appliance has been properly aligned.
5. Fasten the appliance with two screws which are inserted into the holes in the side struts provided for
this purpose in order to enhance stability.
6. Connect the appliance. Make sure that the plug remains accessible after the appliance has been
installed.

8 Service Manual
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4. Fittings and operation of the EDG 6500.0
The water in the water tank is turned into steam with the electric valve located on the steam generator.
A hose transports the water from the tank into the inside of the oven. An evaporation plate is located in
the bottom part of the oven. When water drips onto the hot plate it is immediately converted into steam.
It is therefore not necessary to fill water into the cookware. A pressure flap is closed to keep this steam
inside the oven. The pressure flap has several holes which prevent pressurisation and regulate the
pressure system.
The principle is not the same as for cooking in a pressure cooker, since here the internal pressure
exceeds the atmospheric pressure. The steam oven firstly fills up with steam and the temperature almost
reaches 100°C. An electric heating pad has been installed in the top part of the oven in order to avoid
condensation. A cross-flow cooling fan constantly cools the appliance and the pressure flap opens
three minutes before the cooking cycle is completed, hence enabling steam to escape. A safety
thermostat (210°C) protects the appliance from becoming overheated and two sensors located inside
the oven and in the steam generator constantly monitor the temperature.
4.1 Appliance parts
Electric heating pad
Cross-flow fan
Thermistor
Water
tank
Valve
Safety
thermostat
Steam generator
Sensor
Sensor
Main PCB

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4.2 The appliance at a glance
4.3 Display and control elements
Displays
1Steam cooking button
2Defrost button
3ON/OFF button
4Time of day / cooking time
5Steam cooking symbol
6Cooking time symbol
7Cooking symbol
8Temperature display
9Button for setting the cooking time
10 Selector button
11 Symbol for separate timers
12 Warning signal for faults in the water cycle
13 Defrost symbol
14 Display of cooking time set (direct or delayed start)
15 Sensor locks
Control panel
Display
Water supply
Steam generator
Water tank
Water channel

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5. User settings and functions
5.1 Setting the time of day
When the appliance is used for the first time the time of day will need to be set. As soon as the appliance
is supplied with power 12.00 will blink in the display. The correct time of day can be set with the minus
and plus buttons. Then press the selection button (10) to confirm the setting. The time set will however
also be automatically assumed after a few seconds.
Changing the time
The current time of day will be shown all the time. Press the plus and minus buttons simultaneously until
the time shown starts to blink. Set the correct time with the plus and minus buttons and confirm the
setting with the selection button (10). If you do not confirm the setting the time set will automatically be
assumed after a minute.
5.2 Characteristics
Standard steam cooking 100°C
Defrosting 60°C
Timer Setting with the button
5.3 Lock / child safety device
Press the button for a few seconds until a buzzer sounds and a key symbol appears in the display.
All of the buttons will have been locked.
To unlock the buttons, press the button for a few seconds until a buzzer sounds and the key symbol
in the display goes off.
5.4 Cleaning the water channel
Pull the water channel upwards out of the three grooves, clean it and replace it in the grooves again.
Do not clean the appliance with a steam cleaner!