MKN OPEHEG2 Series User manual

Operating instructions
Cooker
Unit Type of en-
ergy
Unit type Model
Cooker with large hob Electric Floor-standing unit OPEHEG2...
OPEHEG4...
O7EHEG2...
O7EHEG4...
Suspended unit OIEHEG2...
OIEHEG4...
Translation from the original document • 2023501-20ABDE-A • 18/05/2016
2023501-20ABBE-A en-GB
Read the operating instructions prior to
commissioning

Operating and display elements
bbb b acccc
a On Off control knob c Heat zone identification
b Output control knob
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2 Operating instructions

Manufacturer
MKN Maschinenfabrik Kurt Neubauer GmbH & Co. KG
Halberstädter Strasse 2a
38300 Wolfenbüttel
Germany
Phone [phone]
Fax [phone]
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
1Introduction......................................................................... 5
1.1About this manual ............................................................................ 5
1.1.1Explanation of signs ..................................................................................  6
1.2Intended use ..................................................................................... 7
1.3Warranty............................................................................................ 7
2Safety information.............................................................. 8
3Description of the unit ..................................................... 11
3.1Overview of the unit ....................................................................... 11
3.1.1Floor-standing unit...................................................................................  11
3.1.2Suspended unit .......................................................................................  12
3.2Function of the operating and display elements......................... 12
4Operating the unit............................................................. 13
4.1Tips for use ..................................................................................... 13
4.2Switching the unit on and off ........................................................ 13
4.2.1Switching on ............................................................................................  13
4.2.2Switching off ............................................................................................  13
4.3Burning-in the heating zone.......................................................... 14
4.4Basic functions............................................................................... 14
4.4.1Adjusting the output.................................................................................  14
4.5Cooking ........................................................................................... 15
4.6Pausing and end of use ................................................................. 15
5Cleaning and caring for the unit ..................................... 16
5.1Preventing corrosion ..................................................................... 16
5.2Removing rust spots...................................................................... 17
5.3Cleaning the housing..................................................................... 17
5.4Cleaning heat zone......................................................................... 17
6Troubleshooting ............................................................... 18
6.1Cause of failure and the remedy................................................... 18
6.2Nameplate ....................................................................................... 18
7Carrying out maintenance ............................................... 19
8Disposing of the unit in an environmentally responsible
manner ................................................................................. 20
9Manufacturer's declaration.............................................. 21
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Introduction
5Operating 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.
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Introduction
6 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 observe precautions can result in slight to 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.
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Introduction
7Operating 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:
•Heating acids, alkaline solutions or other chemicals
•Heating of warmer plates, containers and tins
•Drying cloths, paper or dishes
•Heating rooms
•As set-down area or working surface
This unit is not intended for the US and Canadian markets. It is not
permitted to be used there.
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.
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Safety information
8 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.
•Do not place any pot lids or utensils on the cooking surface.
Risk of chemical burns from evaporating cleaners
•Follow the instructions of the cleaning agent manufacturer.
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.
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.
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.
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Safety information
9Operating instructions
Unit on casters Risk of injury from a unit on casters
•Attach units with a wall side narrower than 600mm 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.
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.
Risk of physical damage from improper cleaning
•Clean the unit after using it.
•Do not clean the unit with a high-pressure cleaner.
•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.
•Use only a stainless steel scraper or stainless steel spatula for
cleaning.
Hygiene Health risk from insufficient hygiene
•Observe applicable regional hygiene regulations.
•Follow the cleaning instructions.
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Safety information
10 Operating 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.
•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 surface.
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Description of the unit
11Operating instructions
3 Description of the unit
3.1 Overview of the unit
3.1.1 Floor-standing unit
d
a
b
c
Image: Cooker with large hob
a Large hob c Nameplate
b Control panel d Equipment leg
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Description of the unit
12 Operating instructions
3.1.2 Suspended unit
a
b
c
Image: Cooker with large hob
a Large hob c Nameplate
b Control panel
3.2 Function of the operating and display elements
Operating/display element Symbol Designation Function
On Off control knob 0 Off Switch off the unit
1 On Switch on the unit
Output control knob Off Heating element Off
1 — 10 Output Set the heating element output
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Operating the unit
13Operating instructions
4 Operating the unit
CAUTION
Risk of burns from hot surfaces
• Protect arms and hands by wearing suitable protective
gloves.
4.1 Tips for use
•Use suitable cooking utensils.
– 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.
•The shape and size of the cooking utensils can be freely selected.
•Avoid overcooking.
•Place the lid on when cooking.
•Switch off heating zones that are not required.
•Use residual heat by switching off early.
4.2 Switching the unit on and off
4.2.1 Switching on
Turn the On Off control knob to "1".
The unit is now on.
4.2.2 Switching off
Turn the On Off control knob to "0".
The unit is now off.
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Operating the unit
14 Operating instructions
4.3 Burning-in the heating zone
Smoke can develop when particles are incinerated on the heat
zone.
• Ventilate the room well.
Heat up the heat zone to full load during the initial
commissioning in order to eliminate unpleasant smells.
1. Switch the unit on.
2. Turn the output control knob to full load.
The heat zone is heated.
Repeat the process in the same way for further heat zones.
3. Heat the heat zone for approx. 10 minutes without cooking
utensils.
Maximum heating produces a bluish discoloration of the
material.
4. Turn the output control knob to the " " setting.
The heat zone cools down.
Repeat the process in the same way for further heat zones.
5. Switch off the unit.
6. Clean the heat zones (see "Cleaning the unit").
4.4 Basic functions
4.4.1 Adjusting the output
The large cooktop is divided into two or four identical heat
zones. Each heat zone can be adjusted individually.
The heat output can be adjusted infinitely from 0—100% with the
output control knob.
Control setting Triangle 1 2 3 4 5 6 7 8 9 10
Output (%) 10 20 30 40 50 60 70 80 90 100
The temperature range extends from 0—420°C.
Requirement The unit is switched on
1. Select the heat zone.
2. Set the output control knob to the desired output.
The heat zone warms up.
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Operating the unit
15Operating instructions
4.5 Cooking
CAUTION
Risk of burns from hot surfaces
• Protect arms and hands by wearing suitable protective
gloves.
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.
Cooking encompasses a number of cooking modes, such as for
example cooking, frying and braising.
Requirement Heat zone cleaned
1. Switch the unit on.
2. Select the heat zone.
3. Place cooking utensil on the heat zone.
Distribute a larger cooking utensil evenly over several heat
zones.
4. Set the output.
The heat zone is heated.
The cooking utensil is heated.
5. Put the food to be cooked into the cooking utensil.
6. Depending on the desired cooking mode, continue with the
cooking of the food.
7. Turn the output control knob to the " " setting.
The heat zone cools down.
The cooking utensil cools down.
8. Remove the cooking utensil from the heat zone.
9. Switch off the unit.
4.6 Pausing and end of use
Switch off the unit during pauses and at end of use.
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Cleaning and caring for the unit
16 Operating instructions
5 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.
ATTENTION
Risk of physical damage through penetration of water
• Do not close the discharge channel and fill with water.
Image: Discharge channel
If there is a longer pause in use, clean the heat zone and apply
commercially available cooking oil thinly.
5.1 Preventing corrosion
•Keep the surfaces of the unit clean and with access to air.
•Remove lime, grease, starch and protein deposits.
•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,
for example steel spatulas or steel wire brushes.
•Prevent contact with iron and steel, for example steel wool and
steel spatulas.
•Do not use bleaching or chlorine-containing cleaning agents.
•Clean contact surfaces with water.
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Cleaning and caring for the unit
17Operating instructions
5.2 Removing 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.
5.3 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.
5.4 Cleaning heat zone
CAUTION
Risk of burns from hot surfaces
• Allow surfaces to cool prior to cleaning.
ATTENTION
Risk of physical damage from improper cleaning of the
surface
• Do not use abrasive cleaners or cloths.
• Do not use grill cleaners.
Remove stubborn contamination from a warm heat zone
(approx. 60°C).
Requirement Unit switched off
Heat zone cooled down
1. Wipe off light contamination with a damp cloth.
Use a mild cleaning agent.
2. Remove heavy contamination with a stainless steel spatula or
stainless steel sponge.
3. Rinse with clear water and then dry.
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Troubleshooting
18 Operating instructions
6 Troubleshooting
6.1 Cause of failure and the remedy
Failure Possible causes Remedy
The unit does not react Operating element is defective •Disconnect the unit from the electric
mains.
•Contact Customer service.
The unit does not heat up Unit is defective •Disconnect the unit from the electric
mains.
•Contact Customer service.
Power supply interrupted •Contact the authorized technical person-
nel.
Output control knob or heating ele-
ment is defective
•Disconnect the unit from the electric
mains.
•Notify Customer service.
The unit is switched off •Switch the unit on.
Output control knob on " " set-
ting
•Set the output.
Insufficient heat output Unit is defective •Disconnect the unit from the electric
mains.
•Contact Customer service.
Mains phase missing •Contact the authorized technical person-
nel.
6.2 Nameplate
When contacting Customer service, please always provide the
following data from the nameplate:
Serial number
(SN)
Type number
(TYP)
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Carrying out maintenance
19Operating instructions
7 Carrying out maintenance
The unit is maintenance-free, there are no maintenance
requirements.
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Disposing of the unit in an environmentally responsible manner
20 Operating instructions
8 Disposing of the unit in an environmentally responsible
manner
Do not dispose of unit or the unit's components together with non-
recyclable waste. If the unit is disposed of together with non-
recyclable 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.
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