Operating instructions
Cooker with baking oven
Unit Type of energy Unit type Model
Vitro cooker with glass
ceramic cooktop
Electric Floor-standing unit OPEHEV4EB
O7EHEV4EB
HLEHEV4EB
Baking oven
Translation from the original document • 2023406-20ABDE-- • 08/12/2016
2023406-20ABBE-- en-GB
Read the operating instructions prior to
commissioning
Operating and display elements
Cooker
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0
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O
a b a b a b a b c
Image: Operating elements for cooker with 2 or 4 heat zones
a
Heat zone
identification c
OECO/MANUAL
control knob
b
Output
control knob
Baking oven
0
a
b
c
a
Temperature
control knob c
Heating
control knob
b
Heating
indicator light
Cooking zone door
a
a
Extractor hood
control knob
2023406-20ABBE--
2 Operating instructions
Manufacturer
MKN Maschinenfabrik Kurt Neubauer GmbH & Co. KG
Halberstädter Strasse 2a
38300 Wolfenbüttel
Germany
Phone +49 5331 89-0
Fax +49 5331 89-280
Internet www.mkn.eu
Copyright
All rights to text, graphics and pictures in this documentation are held by MKN Maschinenfabrik Kurt
Neubauer GmbH & Co. KG. Distribution or duplication is only permitted with the prior written consent
of MKN.
Copyright by MKN Maschinenfabrik Kurt Neubauer GmbH & Co. KG.
3Operating instructions
Directory of contents
4 Operating instructions
1Introduction......................................................................... 7
1.1About this manual ............................................................................ 7
1.1.1Explanation of signs .................................................................................. 8
1.2Intended use ..................................................................................... 9
1.3Warranty............................................................................................ 9
2Safety information............................................................ 10
3Description of the unit ..................................................... 13
3.1Overview of the unit ....................................................................... 13
3.2Function of the operating and display elements......................... 14
3.2.1Function of the operating and display elements for the cooker............... 14
3.2.2Function of the operating and display elements for the baking oven ...... 15
3.2.3Function of the operating and display elements for the cooking zone door ..
15
3.3Size of baking oven........................................................................ 15
4Operating the cooker ....................................................... 16
4.1Tips for use ..................................................................................... 16
4.2Basic functions............................................................................... 16
4.2.1Adjusting the output................................................................................. 17
4.2.2Operation with pot detection.................................................................... 17
4.2.3Operation without pot detection............................................................... 17
4.3Cooking with pot detection ........................................................... 18
4.4Cooking without pot detection...................................................... 19
5Operating the baking oven .............................................. 20
5.1Tips for use ..................................................................................... 20
5.2Switching the baking oven on and off.......................................... 20
5.2.1Switching on ............................................................................................ 20
5.2.2Switching off ............................................................................................ 20
5.3Basic functions............................................................................... 20
5.3.1Burning in the bottom of the cooking zone .............................................. 21
5.3.2Setting the operating mode ..................................................................... 21
5.3.3Setting the temperature........................................................................... 21
5.3.4Setting preheating ................................................................................... 22
5.4Baking ............................................................................................. 22
6Pausing and end of use ................................................... 24
7Cleaning and caring for the unit ..................................... 25
7.1Preventing corrosion ..................................................................... 25
7.2Eliminating rust spots.................................................................... 26
7.3Cleaning the housing..................................................................... 26
7.4Cleaning the glass ceramic cooktop ............................................ 26
2023406-20ABBE--
Directory of contents
5Operating instructions
7.5Cleaning the baking oven.............................................................. 27
7.6Cleaning the seal of the cooking zone door................................ 28
7.7Performing a visual inspection ..................................................... 29
8Troubleshooting ............................................................... 30
8.1Cause of failure and the remedy................................................... 30
8.1.1Cause of failure of cooker ....................................................................... 30
8.1.2Cause of failure of baking oven............................................................... 31
8.2Nameplate ....................................................................................... 31
9Carrying out maintenance ............................................... 32
10Disposing of the unit in an environmentally responsible
manner ................................................................................. 33
11Manufacturer's declaration............................................ 34
2023406-20ABBE--
Directory of contents
6 Operating instructions
2023406-20ABBE--
Introduction
7Operating instructions
1 Introduction
1.1 About this manual
The operating instructions are part of the unit and contain information:
• On safe operation,
• On cleaning and care,
• On remedies in case of faults.
Be aware of the following notes and adhere to them:
• Read the operating instructions completely before operating the
unit for the first time.
• Make the operating instructions available to the operator at all
times at the operating site of the unit.
• Insert any supplements from the manufacturer.
• Keep the operating instructions throughout the service life of the
unit.
• Pass on the operating instructions to any subsequent operator of
the unit.
Target group The target group of the instruction manual is the operator, who is
entrusted with the operation, cleaning and care of the unit.
Figures All figures in this manual are intended as examples. Discrepancies
between these and the actual unit can arise.
2023406-20ABBE--
Introduction
8 Operating instructions
1.1.1 Explanation of signs
DANGER
Imminent threat of danger
Failure to comply will lead to death or very severe injuries.
WARNING
Possible threat of danger
Failure to comply can lead to death or very severe injuries.
CAUTION
Dangerous situation
Failure to comply can lead to slight or moderately severe
injuries.
ATTENTION
Physical damage
Failure to comply can cause physical damage.
Notes for better understanding and operation of the unit.
Symbol / sign Meaning
• Listing of information.
Action steps, which can be performed
in any sequence.
1.
2.
Action steps, which must be performed
in the specified sequence.
Result of an action performed or
additional information about it.
2023406-20ABBE--
Introduction
9Operating instructions
1.2 Intended use
This unit is intended to be used solely for commercial purposes,
particularly in commercial kitchens.
This unit may only be used with suitable accessories and for the
cooking of food.
It is forbidden to use the unit for purposes, which include the
following:
• Drying cloths, paper or dishes
• Heating acids, alkaline solutions or other chemicals
• Heating preserved food
• Heating flammable liquids
• Deep-frying
• Heating rooms
• Heating of warmer plates and GN containers
• Frying directly on the heat zone
• Frying directly on the bottom of the cooking zone
• Storing supplies
• As set-down area or working surface
• Using the cooking zone door as a standing or depositing surface
The use of the unit is prohibited in the following countries:
• USA
• Canada
1.3 Warranty
The warranty is void and safety is no longer assured in the event of:
• Improper conversion or technical modifications of the unit,
• Improper use,
• Incorrect startup, operation or maintenance of the unit,
• Problems resulting from failure to observe these instructions.
2023406-20ABBE--
Safety information
10 Operating instructions
2 Safety information
The unit complies with applicable safety standards. Residual risks
associated with operation or risks resulting from incorrect operation
cannot be ruled out and are mentioned specifically in the safety
instructions and warnings.
The operator must be familiar with regional regulations and observe
them.
Operation During operation, the following group of individuals must be
supervised by an individual who is responsible for safety:
• Individuals with physical, sensory, or mental handicaps, or who
lack the knowledge and experience to operate the unit properly.
The supervising individual must be familiar with the unit and the risks
associated with it.
Hot surfaces Risk of burns from hot surfaces
• Protect arms and hands by wearing suitable protective gloves.
• Do not touch heating elements, hot surfaces or accessories
immediately after use.
• Allow surfaces to cool prior to cleaning.
• Open the cooking zone door only by means of the door handle.
• Do not place any pot lids or utensils on the cooking surface.
• Remove containers and baking sheets only with suitable
protective gloves or potholders.
Hot liquids Risk of chemical burns from evaporating cleaners
• Follow the instructions of the cleaning agent manufacturer.
• Allow the cooking so to clean to a temperature below 60 °C and
then clean.
Risk of burns from steam
• Protect arms and hands by wearing protective gloves.
• Open the extractor hood carefully.
• Do not look into the extractor hood.
• Do not hold hands in front of the extractor hood.
• First open the cooking zone door slightly and allow the steam to
escape. Then open the cooking zone door completely.
Defective unit Risk of injury from a defective unit
• Disconnect a defective unit from the electric mains.
• Do not operate a defective unit.
• Allow only an authorized technician to repair the unit.
2023406-20ABBE--
Safety information
11Operating instructions
Fire prevention Risk of fire from dirt and grease deposits
• Clean the unit when finished using it.
Risk of fire from overheating
• Observe the unit during operation.
• Do not store any combustible objects or plastic containers in the
cooking zone.
Firefighting
• In the event of a fire, disconnect the unit from the electric mains.
• Use a Fire Class F fire extinguisher, never water, to extinguish
grease fires. Other fires, for instance, can be extinguished with fire
extinguishers suitable for Fire Classes A, B, C, CO2 fire
extinguishers or extinguishing media suitable for the fire class
confronted.
Unit on casters Risk of injury from a unit on casters
• Attach units with a wall side narrower than 600mm to the wall at
the installation site.
• Move the unit only for cleaning or maintenance.
• Lock casters during operation.
Risk of a line breaking if subjected to high tensile load
• Secure the unit with a chain as a strain relief for the power
connection at the installation site so that no tensile load is applied
to the power connection if the unit is moved.
Damaged cooking surface Risk of injury from damaged cooking surface
• Switch off a damaged unit and disconnect it from the electrical
supply mains.
• Do not operate a unit with a damage cooking surface.
• Allow only an authorized technician to repair the cooking surface.
Hot cookware Risk of property damage from hot cookware
• Do not place hot cookware on the bonded joint in the cooking
surface; silicone seals will be destroyed.
• Cookware must not be allowed to overhang the edge of the
cooking surface.
Improper cleaning Risk of chemical burns from cleaning agent
• Follow the instructions of the cleaning agent manufacturer.
• Take appropriate protective measures when handling aggressive
cleaning agents.
Risk of falling on smooth floors
• Keep the floor in front of the unit clean and dry.
2023406-20ABBE--
Safety information
12 Operating instructions
Risk of injury from improper cleaning
• Clean the cooking zone carefully. The cooking zone sensor
protrudes into the cooking zone.
Risk of physical damage from improper cleaning
• Clean the unit after using it.
• Do not clean the unit with a high-pressure cleaner or water jet.
• Do not clean the housing with highly abrasive or chemically
aggressive cleaning agents.
• Do not clean the housing with highly abrasive sponges.
• Follow the instructions of the cleaning agent manufacturer.
• Do not cool shock the unit by cooling it abruptly.
• Clean the cooking zone carefully. The cooking zone sensor
protrudes into the cooking zone.
• Use a glass ceramic scraper to clean the cooking surface.
• Use a glass ceramic cleaner.
• Do not use any bleaching or chlorine-containing cleaners.
Hygiene Health risk from insufficient hygiene
• Observe applicable regional hygiene regulations.
• Follow the cleaning instructions.
Improper use Risk of physical damage from improper use
• Do not operate the unit outdoors.
• Use only original accessories.
• Train operators regularly.
• Do not heat food warmer plates or tins of preserved food.
• Observe the unit during operation.
• Do not place any plastic or aluminium objects on the cooking
surface.
• Use only cookware that is dry outside.
• Use only appropriate and undamaged cookware.
• Remove spices, overcooked food or the like immediately.
• Do not use cookware with a rough bottom.
• Do not fry directly on the cooking zone.
• Do not fry directly on the bottom of the cooking zone.
2023406-20ABBE--
Description of the unit
13Operating instructions
3 Description of the unit
3.1 Overview of the unit
The unit is intended for universal use in commercial kitchens for
cooking food in pots and pans on a surface. Possible uses are
cooking, stewing, frying, braising, boiling and combined frying and
cooking.
The frying and baking oven operates with top and bottom heating in a
closed cooking zone.
b
d
a
e
j
i
g
f
h
c
Image: Cooker with baking oven
a Glass ceramic cooktop f Control panel of baking oven
b Heat zone g Nameplate
c Discharge channel h Equipment leg (optional)
d Cooker control panel i Baking oven door
e Handle for baking oven door j Extractor hood
2023406-20ABBE--
Description of the unit
14 Operating instructions
b
a
c
Image: Cooker with baking oven, door open
a Slide-in rail c Baking tray
b Grate
3.2 Function of the operating and display elements
3.2.1 Function of the operating and display elements for the cooker
Operating/display element Symbol Designation Function
OECO/MANUAL
control knob
MANUAL
Manual Select manual operation.
OECO
Oeco Select pot detection.
Output
control knob Off Switching off the heating element.
1 — 10 Output Set the heating element output.
Heat zone
identification Heat zone Display the heat zone position.
2023406-20ABBE--
Description of the unit
15Operating instructions
3.2.2 Function of the operating and display elements for the baking oven
Symbol Operating/display element Function
"0"
Heating mode
control knob • Switch off the baking oven.
• Select Top heating.
• Select Bottom heating.
• Select Top and bottom heating.
Temperature
control knob • Switch off the heating.
50°C —
300°C
• Set the temperature.
Heating
indicator light • Illuminates when heating is active.
3.2.3 Function of the operating and display elements for the cooking zone door
Symbol Operating/display element Function
Extractor hood
control knob • Discharging steam
3.3 Size of baking oven
The fill quantity depends on the model.
Model (see nameplate) Size of baking oven
OPEHEV4EB 2/1 GN
HLEHEV4EB 1½ GN
O7EHEV4EB
2023406-20ABBE--
Operating the cooker
16 Operating instructions
4 Operating the cooker
CAUTION
Risk of burns from hot surfaces
• Protect arms and hands by wearing suitable protective
gloves.
A hotplate corresponds to a heat zone.
4.1 Tips for use
In order to use the unit to its optimum and avoid heat loss:
• Use suitable cooking utensils.
•
OECO
setting (with pot detection):
– Suitable cooking utensils are those made of metal, such as for
example steel, stainless steel, copper or cast iron, and they
should have a flat bottom.
– Unsuitable cooking utensils are those made of plastic, glass or
ceramics.
– Base diameter > 18cm so that automatic pot detection is
effective.
•
MANUAL
setting:
– Suitable cooking utensils are those made of metal, such as for
example steel, stainless steel, copper and cast iron, or those
made of glass or ceramics, and they should have a flat bottom.
– Unsuitable cooking utensils are those made of plastic.
– The heat zone is completely covered.
• Match the shape and size of the cooking utensils used to the heat
zone.
• Place the lid on when cooking.
• Avoid overcooking.
• Switch off heat zones that are not required.
4.2 Basic functions
CAUTION
Risk of burns from hot surfaces
• Protect arms and hands by wearing suitable protective
gloves.
2023406-20ABBE--
Operating the cooker
17Operating instructions
4.2.1 Adjusting the output
Requirement Unit ready for use
1. Select the heat zone.
2. Turn the
Output
control knob to the desired output level.
For unit with pot detection: the heat zone heats as soon as a
suitable cooking utensil is placed on it.
For unit without pot detection: the heat zone heats immediately
and permanently.
4.2.2 Operation with pot detection
The base diameter of the cooking utensil must be at least 18cm
if used with automatic pot detection.
Pot detection only reacts to a metal cooking utensil.
If power has been interrupted, remove the cooking utensil from
the heat zone for about 5 seconds in order to activate pot
detection again.
Requirement Unit ready for use
Set the
OECO/MANUAL
control knob to
OECO
.
Pot detection is active.
The built-in temperature monitor protects the heat zone against
overheating by automatically reducing the heat output.
The temperature monitor is not a substitute for energyconscious use of the unit.
4.2.3 Operation without pot detection
If pot detection is not active, non-metallic cooking utensils can
also be used.
Requirement Unit ready for use
Set the
OECO/MANUAL
control knob to
MANUAL
.
Pot detection is not active.
2023406-20ABBE--
Operating the cooker
18 Operating instructions
4.3 Cooking with pot detection
CAUTION
Risk of scalding from hot steam or hot food being cooked
Scalding from hot escaping steam or hot food being cooked can
occur, when cooking utensils are being opened, closed or
moved.
• Cooking utensils must be carefully opened, closed and
moved.
After the cooking utensil has been removed, the heat zone
continues to heat for about 10 seconds at the set output. Then
the heat zone switches off automatically.
If power has been interrupted, remove the cooking utensil from
the heat zone for about 5 seconds in order to activate pot
detection again.
Image: Glass ceramic cooktop with cooking utensil
Requirement Unit ready for use
Suitable cooking utensil provided
1. Switch on the pot detection (see "Basic functions").
2. Set the output (see "Basic functions").
3. Place the cooking utensil in the middle of the heat zone.
Distribute a larger cooking utensil evenly over several heat
zones.
The heat zone heats up at the selected output level.
The cooking utensil is heated.
4. Depending on the desired cooking mode, continue with the
cooking of the food.
Reduce the output if required.
5. Remove the cooking utensil from the heat zone.
The heat zone switches off automatically.
The heat zone cools down.
The cooking utensil cools down.
6. Switch off the pot detection (see "Basic functions").
2023406-20ABBE--
Operating the cooker
19Operating instructions
4.4 Cooking without pot detection
CAUTION
Risk of scalding from hot steam or hot food being cooked
Scalding from hot escaping steam or hot food being cooked can
occur, when cooking utensils are being opened, closed or
moved.
• Cooking utensils must be carefully opened, closed and
moved.
After the cooking utensil has been removed, the heat zone
heats permanently at the set output.
Requirement Unit ready for use
Suitable cooking utensil provided
Pot detection switched off
1. Set the output (see "Basic functions").
2. Place the cooking utensil in the middle of the heat zone.
Distribute a larger cooking utensil evenly over several heat
zones.
The heat zone heats up at the selected output level.
The cooking utensil is heated.
3. Depending on the desired cooking mode, continue with the
cooking of the food.
Reduce the output if required.
4. Set the
Output
control knob to " ".
The heat zone cools down.
5. Remove the cooking utensil from the heat zone.
2023406-20ABBE--
Operating the baking oven
20 Operating instructions
5 Operating the baking oven
CAUTION
Risk of burns from hot surfaces
• Protect arms and hands by wearing suitable protective
gloves.
5.1 Tips for use
In order to use the unit to its optimum and avoid heat loss:
• Use suitable cooking utensils.
– Suitable cooking utensils are resistant to deformation and
abrasion caused by the effect of heat.
– Suitable cooking utensils are those made of metal, such as for
example steel, stainless steel, copper or cast iron.
– Suitable cooking utensils are those made of heat-resistant
glass or special ceramics (usually glazed).
– Unsuitable cooking utensils are those made of plastic.
• Use residual heat by switching off early.
5.2 Switching the baking oven on and off
5.2.1 Switching on
Requirement Unit ready for use
1. Turn the
Temperature
control knob to the desired temperature.
2. Turn the
Heating mode
control knob to the desired heating mode.
The oven is now on.
The baking oven heats up to the selected temperature.
5.2.2 Switching off
1. Turn the
Temperature
control knob to " ".
2. Turn the
Heating mode
control knob to "0".
The baking oven is now off.
Unit cools down.
5.3 Basic functions
The following work must be carried out before the initial
commissioning:
Burn in the bottom of the cooking zone.
2023406-20ABBE--
Operating the baking oven
21Operating instructions
5.3.1 Burning in the bottom of the cooking zone
Heat the baking oven to full load during the initial commissioning
in order to eliminate unpleasant smells.
Smoke can develop when particles are incinerated on the heat
zone or in the cooking zone of the baking oven.
• Ventilate the room well.
The blue coloration is a protective layer made of iron oxide.
Requirement Unit ready for use
Baking tray and grate removed from the cooking zone
1. Turn the
Heating mode
control knob to "Top heating and bottom
heating".
2. Set the
Temperature
control knob to "300°C".
The baking oven heats up.
3. Heat the baking oven for approximately 10 minutes.
Maximum heating produces a bluish discoloration of the
bottom.
4. Turn the
Temperature
control knob to the "0" position.
5. Turn the
Heating mode
control knob to the "0" position.
The baking oven cools down.
6. Clean the baking oven (see "Cleaning the unit").
The baking oven is ready.
5.3.2 Setting the operating mode
Requirement Unit ready for use
Set the
Heating mode
control knob to the desired heating mode.
5.3.3 Setting the temperature
CAUTION
Risk of scalding from hot steam or hot food being cooked
Scalding from hot escaping steam or hot food being cooked can
occur, when cooking utensils are being opened, closed or
moved.
• Cooking utensils must be carefully opened, closed and
moved.
2023406-20ABBE--
Operating the baking oven
22 Operating instructions
Set the
temperature
control knob to the desired temperature.
The
heating
indicator light illuminates.
The
heating
indicator light goes out when the set temperature is
reached.
5.3.4 Setting preheating
The correct temperature is important for the different cooking modes
of baking.
Requirement Unit ready for use
1. Set the
Heating mode
control knob to the desired heating mode.
2. Set the
Temperature
control knob to the desired temperature.
The
Heating
indicator light illuminates.
The unit heats up.
Once the set temperature is reached, heating switches off.
The
Heating
indicator light goes out.
The unit is preheated.
5.4 Baking
CAUTION
Risk of burns from hot surfaces
• Protect arms and hands by wearing suitable protective
gloves.
Leave the cooking zone door closed during baking.
If the temperature in the cooking zone drops below the selected
temperature, the baking oven heats up again automatically.
Steam is generated when the food being cooked contains a
large amount of water. It can be removed from the cooking zone
by opening the extractor hood.
If the food being cooked requires a moist climate, e.g. bread,
place a heat-resistant dish with water in the cooking zone.
Requirement The unit is on
1. Prepare the food to be cooked on a baking tray, grate or suitable
cooking utensil.
2. Preheat the baking oven (see "Basic functions").
3. Open the cooking zone door.
4. Push the baking tray or grate into the slide-in rails.
Put a suitable cooking utensil onto the grate and push it into
the slide-in rails.
5. Close the cooking zone door.
2023406-20ABBE--
Operating the baking oven
23Operating instructions
6. Steam arising during the cooking time can be discharged from the
baking oven.
7. Open the extractor hood with the
Extractor hood
control knob.
The steam escapes.
8. Open the cooking zone door.
9. If necessary, carry out sampling before baking is ended.
Close the cooking zone door and continue to cook the food as
required.
10.Switch off the baking oven (see "Switching the unit on and off").
11.Remove the food being cooked.
12.Remove the baking tray or grate.
13.Close the cooking zone door.
14.Clean the unit (see "Cleaning and caring for the unit").
2023406-20ABBE--
Pausing and end of use
24 Operating instructions
6 Pausing and end of use
Switch off the unit during pauses and at end of use.
2023406-20ABBE--
Cleaning and caring for the unit
25Operating instructions
7 Cleaning and caring for the unit
CAUTION
Risk of burns from hot surfaces
• Allow surfaces to cool prior to cleaning.
ATTENTION
Risk of physical damage from extremely abrupt cooling
• Do not cool shock the unit by cooling it abruptly.
ATTENTION
Risk of physical damage from improper cleaning
• Do not clean the unit with a high-pressure cleaner or water
jet.
ATTENTION
Risk of physical damage through penetration of water
• Do not close the discharge channel and do not fill with water.
Image: Discharge channel
7.1 Preventing corrosion
• Keep the surfaces of the unit clean and with access to air.
• Remove lime, grease, starch and protein deposits from the
surfaces of the unit.
• Remove salt accumulations.
• Only expose parts made from non-rusting steel to brief contact
with highly acidic foods, spices, salts or the like.
• Avoid damaging the stainless steel surface with other metal items,
such as for example steel spatulas or steel wire brushes.
• Avoid contact with iron and steel, such as for example steel wool
and steel spatulas.
• Do not use bleaching or chlorine-containing cleaning agents.
• Clean the contact surfaces with water.
2023406-20ABBE--
Cleaning and caring for the unit
26 Operating instructions
7.2 Eliminating rust spots
• Remove fresh rust spots with a mild abrasive or fine sandpaper.
• Always remove rust spots completely.
• Expose treated areas to fresh air for at least 24 hours. During this
time, do not allow any contact with greases, oils or foods so that a
new protective layer can form.
7.3 Cleaning the housing
ATTENTION
Risk of physical damage from improper cleaning
• Do not clean the housing with highly abrasive or chemically
aggressive cleaning agents.
• Do not clean the housing with highly abrasive sponges.
Requirement Unit switched off and cooled down
Clean the housing with warm water and commercially available
washing-up liquid.
7.4 Cleaning the glass ceramic cooktop
CAUTION
Risk of burns from hot surfaces
• Allow surfaces to cool prior to cleaning.
Image: Glass ceramic cooktop with glass scraper
Requirement Unit switched off
Cooktop cooled down
1. Wipe off light contamination with a damp cloth.
2. Remove heavy contamination with a commercially available glass
ceramic cleaner.
3. Remove encrusted material with a glass scraper.
4. Clean the cooktop with warm water and commercially available
cleaners.
5. Wipe dry with a lint-free cloth.
2023406-20ABBE--
Cleaning and caring for the unit
27Operating instructions
7.5 Cleaning the baking oven
CAUTION
Risk of burns from hot surfaces
• Allow surfaces to cool prior to cleaning.
CAUTION
Risk of injury from improper cleaning
• Clean the cooking zone carefully, since the temperature
sensor protrudes into the cooking zone.
CAUTION
Risk of chemical burns from cleaning agent
• Follow the instructions of the cleaning agent manufacturer.
• Take appropriate protective measures when handling
aggressive cleaning agents.
ATTENTION
Risk of physical damage from improper cleaning
• Do not clean the unit with a high-pressure cleaner or water
jet.
ATTENTION
Risk of physical damage from improper cleaning
• Be sure not to damage the temperature sensor during
cleaning.
ATTENTION
Risk of physical damage from improper cleaning
Animal fats in combination with high temperatures can damage
the door seal very quickly if it is not maintained properly.
• Clean the door seal regularly.
• Do not use aggressive cleaners.
Dry the baking oven by heating it briefly.
The bottom of the cooking zone can turn a dark blue during
operation. Do not remove the oxide layer. It provides additional
corrosion protection.
2023406-20ABBE--
Cleaning and caring for the unit
28 Operating instructions
Requirement Unit switched off and cooled down
Baking oven cooled down
1. Open the cooking zone door.
2. Remove the cooking utensils from the cooking zone.
3. Remove the baking tray and grate from the cooking zone.
4. Unhook the slide-in rail by lifting it upwards out of the support
eyes.
5. Clean the cooking zone, slide-in rail, baking tray and grate with
warm water and a commercially available cleaning agent.
6. Clean the door seal and remove grease with a mild soap solution.
7. Rinse thoroughly with clear water to neutralise cleaners.
8. Wipe dry with a lint-free cloth.
9. Hook the slide-in rail into the support eyes.
10.Push the baking tray and grate into the slide-in rail.
11.Close the cooking zone door.
12.Switch on the baking oven (see "Switching the baking oven on
and off").
13.Heat the baking oven for approximately 5 minutes.
The cooking zone dries.
14.Switch off the baking oven (see "Switching the unit on and off").
Tip
In order to care for the rust protection, or if it has been worn
away, apply a special care product or thin oil film.
7.6 Cleaning the seal of the cooking zone door
CAUTION
Risk of burns from hot surfaces
• Allow surfaces to cool prior to cleaning.
ATTENTION
Risk of physical damage from improper cleaning
Animal fats in combination with high temperatures can damage
the door seal very quickly if it is not maintained properly.
• Clean the door seal regularly.
• Do not use aggressive cleaners.
If the unit is used primarily for roasting, also clean the door seal
during pauses in use.
Requirement Unit switched off and cooled down
1. Open the cooking zone door.
2. Clean the door seal with warm water and a commercially available
detergent.
3. Rinse thoroughly with clear water to neutralise cleaners.
4. Wipe dry with a lint-free cloth.
2023406-20ABBE--
Cleaning and caring for the unit
29Operating instructions
7.7 Performing a visual inspection
ATTENTION
Risk of physical damage from improper inspection
• Have inspections performed by a proficient operator.
• In the event of damage or signs of wear, contact Customer
service immediately and do not operate the unit any longer.
Inspect the unit, operating elements, hotplates and baking oven for
visible damage.
Requirement Unit switched off and cooled down
Inspect the housing, hotplates, baking oven, slide-in rails, baking
trays and cooking zone door at regular intervals for deformation
and damage.
Visual inspection has been performed.
2023406-20ABBE--
Troubleshooting
30 Operating instructions
8 Troubleshooting
8.1 Cause of failure and the remedy
8.1.1 Cause of failure of cooker
Failure Possible causes Remedy
Operating element does not
react
The
Output
control knob is defective • Disconnect the unit from the electric
mains.
• Contact Customer service.
The
OECO/MANUAL
control knob is
defective
• Disconnect the unit from the electric
mains.
• Contact Customer service.
The unit does not heat up:
The
OECO/MANUAL
control
knob is on
MANUAL
and pot
detection is not active
Output
control knob on setting " "
• Set the output.
Power supply interrupted • Connect the unit to the electric mains.
• Check the fuses.
• Notify Customer service.
The electronics are defective • Disconnect the unit from the electric
mains.
• Notify Customer service.
Unit defective • Disconnect the unit from the electric
mains.
• Notify Customer service.
The cooking utensil does not
heat up
Unsuitable cooking utensil used • Use suitable cooking utensils.
The unit does not heat up:
The
OECO/MANUAL
control
knob is on
OECO
and pot
detection is active
Output
control knob on setting " "
• Set the output.
The electronics are defective • Disconnect the unit from the electric
mains.
• Notify Customer service.
Unit defective • Disconnect the unit from the electric
mains.
• Notify Customer service.
The cooking utensil does not
heat up
The
pot base
diameter of the cooking
utensil is <18cm
• Use suitable cooking utensils.
Unsuitable cooking utensil used • Use suitable cooking utensils.
Insufficient heat output Unit defective • Disconnect the unit from the electric
mains.
• Notify Customer service.
Overheating protection has triggered • Set the output.
• Allow the unit to cool down.
2023406-20ABBE--
Troubleshooting
31Operating instructions
8.1.2 Cause of failure of baking oven
Failure Possible causes Remedy
The unit does not heat up The unit is switched off • Switch on the unit.
Temperature
control knob in
" " position
• Set the temperature.
Power supply interrupted • Contact the authorized technical person-
nel.
Temperature
control knob or heating
element is defective
• Disconnect the unit from the electric
mains.
• Notify Customer service.
Insufficient heat output
Temperature
control knob or heating
element is defective
• Disconnect the unit from the electric
mains.
• Notify Customer service.
Mains phase missing • Contact technical personnel.
The
Heating
indicator light does
not illuminate
The
Heating
indicator light is defective • Disconnect the unit from the electric
mains.
• Contact the authorized technical personnel.
8.2 Nameplate
When contacting Customer service, please always provide the
following data from the nameplate:
Serial number
(SN)
Type number
(TYP)
2023406-20ABBE--
Carrying out maintenance
32 Operating instructions
9 Carrying out maintenance
The unit is maintenance-free, there are no maintenance
requirements.
2023406-20ABBE--
Disposing of the unit in an environmentally responsible manner
33Operating instructions
10 Disposing of the unit in an environmentally
responsible manner
Do not dispose of unit or the unit's components together with nonrecyclable waste. If the unit is disposed of together with nonrecyclable waste or treated improperly, toxic substances contained in
the unit can damage health and pollute the environment.
Dispose of the unit in accordance with local regulations for used
appliances. Clarify any open questions with the responsible agencies
(for instance, solid waste management).
Unit In addition to valuable materials, used electrical and electronic
equipment also contains harmful substances that were needed for
their operation and safety.
Cleaning agents Dispose of leftover cleaning agents and cleaning agent containers in
accordance with the information provided by the cleaning agent's
manufacturer. Observe applicable regional regulations.
2023406-20ABBE--
Manufacturer's declaration
34 Operating instructions
11 Manufacturer's declaration
EC Declaration of Conformity
1 / 1
2023406--0KOBE-- en-GB
Manufacturer
MKN Maschinenfabrik Kurt Neubauer GmbH & Co. KG • Halberstädter Straße 2a • 38300 Wolfenbüttel,
Germany
We hereby declare, that the following product:
Description of the unit
Unit for cooking food in commercial applications
Unit type
Vitro electric cooker with electric baking oven
Unit number
1323403 2023406 2123403
complies with the relevant provisions of the following directives, but does not contain any assurance of
properties:
• Directive 2011/65/EU (RoHS) dated 01 July 2011
• Directive 2014/30/EU dated 26 February 2014 on electromagnetic compatibility
• Directive 2014/35/EU dated 26 February 2014 on electrical equipment used within certain voltage limits
Adduced basis for verification
EN ISO 12100:2010
DIN EN 55014-1:2012-05
EN 60335-1:2012
EN55014-2:2015
EN 60335-2-36:2002/A11:2012
The manufacturer bears the sole responsibility for issuing this Declaration of Conformity. This Declaration of
Conformity becomes invalid, if changes are made which are not agreed with us.
Wolfenbüttel, 19/05/2016
Person authorised to compile the technical documents: ppa. Peter Helm,Chief Technical Officer (address as
manufacturer)
Translation from the original document • 2023406--0KODE--
2023406-20ABBE--
www.mkn.eu
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