Meiko M-iClean U User manual

9763258 / Valid from: 2018-09 / Update: 2022-03
www.meiko.info
M-iClean U
Type M2
Glass, utensil and dishwasher
Operating instructions
Read operating instructions before using the machine!
test
EN

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9763258
Translation of the "original operating instructions"
Contents
1NOTES ON THE OPERATING INSTRUCTIONS .........................................................4
1.1 Product identification 4
1.2 Delivery contents 4
1.3 Related documents 5
2LIABILITY AND WARRANTY.......................................................................................5
3SAFETY........................................................................................................................6
3.1 Symbol explanation 6
3.1.1 Notes in the instructions 6
3.1.2 Safety symbols in the instructions 7
3.2 Safety instructions on the machine 8
3.3 Requirements for the personnel 8
3.4 Residual risks 9
3.5 Intended use 10
3.6 Foreseeable misuse 11
3.7 Fundamental safety and accident prevention regulations 11
3.8 What to do in the event of an emergency 13
4PRODUCT DESCRIPTION.........................................................................................13
4.1 Functional description 13
4.2 Overview illustration 14
4.3 Type label 15
4.4 LED indicator handle 15
4.5 Blue operating concept 16
4.6 Detergent and rinse aid 16
4.6.1 Detergent 16
4.6.2 Rinse aid 17
4.6.3 Dosing equipment 17
4.6.4 Suction lances 17
4.6.5 Change of products 17
4.7 Options 18
4.7.1 GiO-MODULE 18
4.7.2 ComfortAir heat recovery 18
4.7.3 Bottle rack for M-iClean UM/UM+ 18
4.7.4 Cold water final rinse for glasswashers 18
4.7.5 Disinfection control 19
4.7.6 Daily protocol with MEIKO Connect 20
4.8 Automatic standard functions 20
4.8.1 Eco mode 20
4.8.2 Forced drainage 20
5TECHNICAL DATA.....................................................................................................20
5.1 Recess dimensions 21
5.2 EC/EU declaration of conformity 22
6ASSEMBLY ................................................................................................................22
6.1 Prerequisites for assembly 23

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6.1.1 Checking the condition at delivery 23
6.1.2 Requirements for the installation area 23
6.1.3 Requirements for the waste water connection 23
6.1.4Requirements for the fresh water connection 23
6.1.5 Requirements to the electrical connection 25
6.2 Transport 26
6.3 Perform assembly 27
7COMMISSIONING ......................................................................................................27
7.1 Check prerequisites for commissioning 27
7.2 Perform commissioning 28
8OPERATION/USE.......................................................................................................28
8.1 Glass control panel 28
8.2 Prepare dishwasher 30
8.2.1 Putting the machine into operation 31
8.3 Washing 31
8.3.1 Putting away washware 31
8.3.2 Select wash programme 32
8.3.3 Start wash cycle 36
8.3.4 Emptying the washware 37
8.4 Fill consumables 38
8.4.1 Refill of internal storage container 38
8.4.2 Replace canister 39
8.5 Malfunctions 39
8.5.1 Messages 40
8.6Shutting down the dishwasher 42
8.7 Change authorisation level 43
8.8 Ventilating the pipes 45
8.9 Changing water 46
8.10 Reset the counter 46
8.11 Adjust dosing quantity 47
8.12 Activate/deactivate Bluetooth interface 47
8.13 Private Label 2.0 48
8.13.1 Setting waiting time for Private Label 49
8.14 Setting the waiting time for dimming the display brightness 50
9MAINTENANCE AND CLEANING .............................................................................50
9.1 Maintenance 51
9.2 Maintenance table 51
9.3 Change pre-filter on reverse osmosis module (GiO MODULE) 53
9.4 Daily cleaning 56
9.5 Cleaning the stainless steel surfaces 57
9.6 Descaling 58
9.7 Spare parts 59
10 NON-USE FOR SEVERAL DAYS ..............................................................................59
10.1 Break in operation (e.g. seasonal operation) 59
10.2 Commissioning after break in operation 59
11 DISMANTLING AND DISPOSAL ...............................................................................59

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11.1 Disposal of packaging materials 60
11.2 Dismantling and disposal of the old device 60
12 ABBREVIATIONS.......................................................................................................60
13 INDEX.........................................................................................................................61
14 NOTES........................................................................................................................63
1 Notes on the operating instructions
The operating instructions as well as the applicable documents must be read before
the first commissioning, kept for later use, and must be accessible to the operator at
all times. Failure to observe the operating instructions may result in damage to per-
sons and property.
These operating instructions can be downloaded via the following address:
www.meiko.info or https://partnernet.meiko-global.com.
1.1 Product identification
These operating instructions apply to the following machine types:
glass, dish and utensil washing machine
M-iClean U Type M2:
M007DWUC1M2-10
M007DWUC1M2-20
M007DWUC1M2-30
M007DWUC1M2-40
1.2 Delivery contents
The delivery contents include:
•1x M-iClean U glass, dish and utensil washing machine
•Matching racks for glassware, dishes and containers depending on machine
model
•Measuring cup for adding detergent and rinse aid for machines with internal
dosing systems
•Key to change pre-filter (only with GiO option)
•Connecting hoses for fresh water and waste water
•Documentation

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1.3 Related documents
In addition to these operating instructions, there are other documents that are availa-
ble depending on the authorisation:
Operator
(included in delivery contents)
Authorised service technician
EC/EU declaration of conformity
Dimension sheet
Short operating instructions
Installation instructions
Wiring diagram
Installation instructions for optional
components (e.g. GiO module
separately)
Service instructions
2 Liability and warranty
All of MEIKO’s obligations arise from the relevant purchase contract, which also con-
tains the entire and only valid guarantee provisions. These contractual guarantee
provisions shall be neither extended nor restricted as a result of any explanations
given in the instructions.
If you follow the instructions in this operating manual carefully, your dishwashing
machine will always give you total satisfaction and will have a long service life.
The delivered system corresponds to the state of technology and safety regulations
valid at the time of production/delivery.
The information, data and notes specified in the operating instructions correspond to
the latest version at the time of printing. No claims for already delivered systems
may be asserted based on these statements, illustrations and descriptions.
Claims must be reported to the manufacturer immediately after determination of the
defect or error. Liability claims for personal injury or material damage as well as for
operational problems are excluded if they are due to one or more of the following
causes:
• Unintended use.
• Improper installation, commissioning, operation and maintenance.
• Operation of the machine or system with defective safety devices or improperly
attached or non-functioning safety and protective devices.
• Noncompliance with the notes in the operating instructions regarding transport,
storage, mounting, commissioning, operation and maintenance.
• Unauthorised design changes or settings on the machine or system beyond the
intended purpose.
• Improper monitoring of parts subject to wear.
• Use of wear and replacement parts that are not from the manufacturer.
• Improperly performed repairs, inspections or maintenance.
• Catastrophes due to human-induced events or force majeure.

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3 Safety
3.1 Symbol explanation
3.1.1 Notes in the instructions
Warnings
Danger
Short description of the danger:
The signal word DANGER designates an immediately threatening danger.
Failure to observe this leads to very serious injuries or death
Warning
Short description of the danger:
The signal word WARNING designates a possible danger.
Failure to observe this can lead to very serious injuries or death.
Beware
Short description of the danger:
The signal word BEWARE designates a possible danger.
Failure to observe this can lead to minor to medium injuries.
Application information
Caution
Short description:
The signal word Caution designates a possible danger.
Failure to observe this can lead to damage to the machine or system.
Note
The signal word Note designates further information on the machine / system or its
application.

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3.1.2 Safety symbols in the instructions
The following note and danger symbols are used both in the document and on the
machine. Observe these symbols and signs on the machine to avoid personal injury
and material damage!
The symbols have the following meanings:
Symbol
Meaning
Warning of hazardous areas
Warning of dangerous electric voltage
Warning of the danger of hand injuries
Caution, keep hands away from parts that bear this warning symbol. The danger ex-
ists that hands can be crushed, pulled in or otherwise injured.
Warning of hot surfaces and liquids
Warning of the machine falling over
Warning of environmental damage
Do not spray with water
No drinking water
Access prohibited for persons with pacemakers
Eye protection must be used or protective glasses must be worn
Hand protection must be worn
Read the operating instructions
Disconnect before servicing or repair
Potential equalisation connection

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3.2 Safety instructions on the machine
The machine has a safety note attached. This is located underneath the front panel.
3.3 Requirements for the personnel
Commissioning, instructions, repairs, maintenance, assembly and installation of or
on MEIKO machines must only be carried out/authorised by MEIKO-authorised ser-
vice partners.
During operation it must be ensured that:
•Only adequately trained and instructed personnel are allowed to work on the
machine.
•Personnel responsibilities for operation, maintenance and repairs must be
clearly defined.
•Any personnel undergoing training are only allowed to work on the machine un-
der the supervision of an experienced person.
The required qualifications for performing specific work at the machine are deter-
mined by MEIKO.
Persons
Trained oper-
ating staff
MEIKO author-
ised company
tradesman
MEIKO author-
ised service
technician
Activity
Installation/assembly

Commissioning

Operation, use



Cleaning



Check safety devices


Troubleshooting



Troubleshooting, mechan-
ical



Troubleshooting, electrical
*

Maintenance


Repairs


* with training as an electrician
Note
The instructions must be acknowledged in writing.

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Qualified staff, as defined by the operating Instructions, are persons:
•over 14 years of age,
•due to their training, experience and instruction are able to perform the required
activities,
•are authorised to perform the required activities by the person responsible for
safety of the machine,
•who have been trained in first aid and in the on-site rescue arrangements,
•have read and understood the operating instructions and corresponding safety
instructions and will follow them.
3.4 Residual risks
Phase
Activity
Nature of the hazard
Avoidance measure
Transport and
assembly
Loading and unloading
with forklift truck
Crushing/impact
•Load-bearing capacity of the forklift truck must
be adequate for the weight of the machine
•Please note the machine's centre of gravity
•Secure to prevent slipping
Deposit at the installa-
tion location
Crushing/impact
•Ensure that the ground beneath is capable of
taking the load
•Ensure that the machine cannot tip
Install electrical connec-
tions
Electric shock
•Only skilled personnel may connect up the
machine
•Adhere to the accident prevention regulations
Install separate GiO
MODULE (optional)
Trips/falls/crushing
•We recommend fastening the GiO MODULE
to the wall/table/machine
•Mount freestanding module using solid base
•If necessary, run module at 90 degrees (lying)
Commissioning
Fill with detergent/rinse
aid
Eye injury/health risks
•Wear safety eyewear/gloves
•Avoid contact with skin and eyes
Activities in the machine
Hand injuries on sharp
edges
•Wear protective gloves
Operation
Programme is running
Scalding on inappropriate
opening of door
•Do not open door during programme run
Machine catching fire due to
overload or blockage of
pump motors
•Always use fine/coarse sieve when running
the machine to keep out foreign bodies
•Pre-wash washware
Loading and unloading
the machine
Trapping of hand
•To close the machine door, use the handle
designated for this purpose
Grazing finger on fan wheel
if still running (unloading)
•Do not reach into fan wheel (positioned to rear
of tank top)
Broken crockery causing
cuts/severing
•Wash washware in the specially designed
rack in the machine
•Place small items in the appropriate rack in-
serts
•Washware must not come into contact with ro-
tating parts of the machine
Risk of snagging with loose
clothing or items of jewellery
•Wear suitable work clothing and sturdy shoes
•Do not wear rings, necklaces or other pieces
of jewellery
Slipping
•Use non-slip floor coverings
Scalding
•If necessary, allow washware to cool down
•If necessary, allow machine components to
cool down before touching
•Do not remove tank cover sieve while ma-
chine is in operation
•Protective gloves recommended

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Phase
Activity
Nature of the hazard
Avoidance measure
Other activities
Injury through standing or
sitting on the open machine
door
•Ensure that nobody sits or stands on the door
Swallowing of water in the
wash chamber
•Do not use the water in the wash chamber for
food preparation or drink it
Independent changes to
chemical dosing
Breathing difficulties/suffo-
cation
•Only allow specialist personnel to adjust dos-
ing
Refilling detergent/rinse
aid
Tripping/falling over open
dosing cover
•Close dosing cover as soon as refilling is com-
plete
Eye injury/health risks
•Wear safety eyewear/gloves
•Avoid contact with skin and eyes
Maintenance and
cleaning
Any maintenance work
Electric shock
•Before opening the housing parts, ensure the
mains switch has been disconnected and se-
cured so that it cannot be turned on again
•Only specialist personnel may carry out
maintenance work
Cleaning or mainte-
nance
Tripping/falling over open
door
•Always close door after use
Scalding/burning
•Allow machine components to cool down be-
fore touching
•Wear protective gloves
Hand injuries on sharp
edges
•Wear protective gloves
Cleaning
Poisoning
•Do not use aggressive cleaning or scouring
agents
•Only use descaling products suitable for com-
mercial machines
•Wear protective gloves
GiO MODULE: replace
filter cartridge
Water escaping
•Provide suitable vessel (e.g. base drip tray)
Dismantling and
disposal
Dismantling
Eye injury/health risks
•Wear safety eyewear/gloves
•Avoid contact with skin and eyes
•If necessary, clean hoses, dosing system and
machine parts with fresh water
Loading and unloading
with forklift truck
Crushing/impact
•Load-bearing capacity of the forklift truck must
be adequate for the weight of the machine
•Please note the machine's centre of gravity
•Secure to prevent slipping
3.5 Intended use
The dishwashing machine must only be used in accordance with its intended pur-
pose and as per these operating instructions. The dishwashing machine is intended
exclusively for commercial use.
The dishwashing machine is designed for cleaning dishes, cutlery, glassware,
kitchen utensils, baking trays and containers.
The washware must be suitable for dishwashing machines. If there is any doubt, a
consultation (size, version, basic suitability for dishwashing machine, etc) can be
carried out with MEIKO to confirm suitability ([e-mail]).
The following applications are expressly not intended:
•Processing hazardous substances in the machine (health hazards, in particular
toxic, highly or extremely flammable and explosive substances).
•Operating the machine in an explosive environment.

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3.6 Foreseeable misuse
The dishwashing machine must not be used for:
•Washing kitchen utensils with electronic components
•Cleaning textiles, oven cloths or steel sponges
•Washing utensils made of iron or utensils that must not come into contact with
foodstuffs (e.g. ashtrays, candlesticks, etc)
•Cleaning living creatures
•Washing food for subsequent consumption
•Preparing foodstuffs in the machine
•Taking wash water to prepare food or for drinking
•Washing support grids of cooking hobs/gas hobs
•Filling the machine from an external source (e.g. shower)
•Disposing of dirty water using the dishwasher (e.g. from a cleaning bucket)
•Standing or sitting on machine parts (e.g.: door)
•Washing dishes made of wood or dishes that have wooden parts
•Washing plastic parts that are not heat and alkali-stable
•Washing parts made of aluminium (such as pots, containers or trays only with a
suitable detergent to avoid black discolouration)
•Conversions and modifications by means of non-approved conversion kits
3.7 Fundamental safety and accident prevention regulations
Note
The following safety instructions aim to protect operating personnel as well as third
parties and the dishwashing machine itself.
Please take note of the information in these instructions and the signs on the dish-
washing machine.
However, safety can only be guaranteed during operation if all necessary measures
are taken.
The operator of the machine has an obligation of care to ensure that these
measures are planned for and also to check that they are correctly implemented.
The operator must ensure in particular that:
•The dishwashing machine is only used in accordance with its intended purpose.
In the event of the machine being used or operated contrary to this, damage or
risks may arise.
•In order to guarantee functionality and safety, only original spare parts supplied
by the manufacturer may be used.
•The safety of the dishwashing machine is not impaired by the subsequent in-
stallation of a dosage system.
•Only appropriately qualified and authorised personnel operate, maintain and
repair the dishwashing machine.
•No one sits or stands on the open door.
•Staff are regularly trained in all questions relating to occupational safety and
environmental protection and are familiar with the operating instructions and, in
particular, the safety information that they contain.
•The area around the machine is assessed with reference to the risk to other
people, e.g. children; people with physical, sensory or mental impairments;
people lacking in knowledge or experience. In case of doubt, special optional
initiation functions other than conscious, intentional operation (i.e. operation
from the screen) are to be deactivated.
•The dishwashing machine is only operated in perfect, functional condition, all
protection devices and covers are installed.
•The safety and switching equipment is regularly tested to ensure it is function-
ing correctly.

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•Dishwashers accessible from behind may only be operated with a rear cover.
•The required personal protective equipment is made available to and worn by
maintenance and repair personnel.
•A functional test on all dishwashing machine safety systems is carried out at
every regular maintenance appointment.
•None of the safety and warning notices affixed to the dishwashing machine it-
self are removed and all are legible.
•Upkeep (maintenance and inspection) is carried out on optional vendor parts
according to the requirements in the corresponding instructions.
•Following installation, commissioning and handing over of the dishwashing ma-
chine to the customer/operator, no modifications are made (e.g. electrical or
mechanical machine components).
Information on operating the dishwashing machine:
•Only operate the dishwashing machine under the supervision of trained person-
nel.
•Do not use the dishwashing machine if you are unsure about its operation.
•Always close all doors and flaps.
•Wear suitable work clothing.
•When working on the dishwashing machine, wear appropriate protective
gloves.
•Allow machine components and washware to cool down before touching.
- At the end of operation:
–Switch off the dishwashing machine at the on-site mains disconnection de-
vice. This is located in the electricity supply pipe for the machine.
–Close the on-site stop valve in the fresh water supply line.
Information on use of detergent and rinse aid:
•Only use detergents and rinse aid suitable for commercial dishwashing ma-
chines.
•Acquire information from the manufacturers of these products.
Detergent and rinse aid may contain hazardous substances. The wash water used
during operation contains chemicals.
•Never drink the wash water.
•Contact a doctor immediately if wash water is swallowed.
•Pay attention to the manufacturers' hazard warnings on the original canisters
and safety data sheets.
•When handling chemicals, wear appropriate protective gloves and safety eye-
wear.
•Do not confuse detergent and rinse aid.
•Ensure that the suction connections for the dishwashing machine are correctly
connected to the canisters.
•An LED light source is used to illuminate the wash chamber and the door han-
dle. Never look directly at the light source for more than 30 minutes a day.
Information on the use of descaling agents
Residue from descaling agents can cause damage to the plastic components and
sealing materials in the machine.
•Acquire information from the manufacturers of these products.
•Please observe the manufacturer's hazard warnings.
•Thoroughly remove any residue after use.

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Information on cleaning the machine
Foam can cause malfunctions in the dishwashing machine and a poor washing re-
sult.
•Do not use a foaming manual dishwashing detergent for precleaning or for
cleaning the machine.
•Allow machine components and washware to cool down before touching.
Information on cleaning the surrounding area
When cleaning the surrounding area, the machine can be damaged by aggressive
external influences (steams, detergents) or the ingress of water.
•Do not use aggressive detergents (e.g. aggressive tile cleaner).
•If installed at ground level, never allow the surrounding area to flood.
Notices on electrics and electronics
There is a danger to life if exposed parts and damaged supply lines under electrical
voltage are touched.
•Please take note of the warning information in these instructions and the signs
on the dishwashing machine.
•Whenever you are working on electrical components in the machine, ensure
that electrical connections are physically secure.
•Whenever you are working on electrical components in the machine, check
wires and cables for any potential damage and replace, if necessary.
Incorrect cleaning can cause damage to the electronics.
•The dishwashing machine, switch cabinets and other electrical components
must never be sprayed with a hose or high pressure cleaner.
•Ensure that no water can enter the machine by accident.
Notice on non-ionising radiation
The dishwasher does not specifically generate non-ionising radiation. For tech-
nical reasons, only the electric appliances emit non-ionizing radiation.
In the immediate vicinity of the dishwashing machine, the influence of active im-
plants (e.g. cardiac pacemakers, defibrillators) can be ruled out with a high degree
of probability.
3.8 What to do in the event of an emergency
•In dangerous situations, disconnect from the power supply using the locally
available mains isolator.
4 Product description
4.1 Functional description
The M-iClean U is a glass, dish and utensil washing machine with a square rack.
The dishwasher has one wash and one final rinse cycle.
A temperature regulator maintains the set wash temperature of between 58-60 °C. A
rotary pump circulates the water from the wash tank into the wash nozzles. The wa-
ter jets hit the wash ware from different directions. This ensures uniform washing
results.
The wash cycle is followed by a fresh water final rinse. The items being washed are
rinsed with hot fresh water at 80-83 °C (65 °C for the glass programme) via a sepa-
rate nozzle system. This heats up the wash ware for the following drying process.
At the same time, the final rinse water is used to regenerate the rinse water; this re-
duces the degree of soiling of the rinse water.

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4.2 Overview illustration
1Operating display
2LED indicator handle
3Machine door
4Front panel
5Connectors for detergent and rinse
aid
The dosing pumps for detergent and rinse aid are located under the front panel (4).
•To remove the front panel (4), push it gently upwards, tip and then pull it out of
the slot.
The optional GiO module (1) is located in different positions depending on the partic-
ular model ordered.
–In the external casing next to the machine.
–Integrated beneath the machine.
–Integrated at the rear of the machine.

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4.3 Type label
On the M-iClean U, the rating plate is located on the inside of the lower front panel.
Meaning
MEIKO
Maschinenbau GmbH & Co. KG
Englerstraße 3
D-77652 Offenburg
Name and address of manufacturer
Machine type
Type
Model name
SN
Serial number
Current type
Current type
El. connection
Electrical connection
El. connection boiler
Electrical connection boiler
Water pressure
Not specified, data see page 23
Boiler capacity
Boiler capacity
Steam
Not specified
Year of manufacture
Year of manufacture
IP X5
CE marking,
IP protection degree
4.4 LED indicator handle
Blue
Green
Red
Ready for operation
Programme is running
Malfunction / important message

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4.5 Blue operating concept
1Blue handle on tank cover sieve
2Blue filter
The parts of the dishwasher that must be touched by the operator in operation and
in daily use are blue. And so after a short briefing, operators know intuitively that
they have to remove and clean the wash system, tank cover sieve and filter, for ex-
ample.
4.6 Detergent and rinse aid
Warning
Risk of injury from contact with chemicals
•Observe the safety data sheets and dosing recommendations of the chemical
manufacturers.
•Use eye protection.
•Wear protective gloves.
•Do not mix different chemical products.
Caution
•Only use products that are suitable and approved for commercial dishwashers.
MEIKO recommends MEIKO ACTIVE detergent and rinse aid. MEIKO ACTIVE
products are optimally adapted to MEIKO dishwashing machines.
•Do not mix different cleaning products.
The dishwashing machine is equipped by default with dosing units for dosing liquid
detergent/rinse aid. Manual dosing with powder cleaner is not intended.
Optionally, the dishwashing machine can be equipped with or prepared for an exter-
nal dosing system. In this case, further information can be found on the wiring dia-
gram and in the External dosing document.
4.6.1 Detergent
Detergents are alkaline (pH value should be > 7) and are needed to dissolve soiling
from the washware. The standard setting is 2 ml of detergent per litre of tank water.
If necessary, the concentration can be adjusted depending on the water quality,
washware and degree of soiling. This setting is made during commissioning by an
service technician authorised by MEIKO or the chemical supplier.
Change dosing quantity, see page 47.

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4.6.2 Rinse aid
Rinse aids are acidic (pH value should be between 2 and 7) and accelerate the dry-
ing of the washware by reducing the surface tension of the water so that it can run
off the washware quickly.
The correct dosage is achieved when the water drips evenly from the washware and
depends on the available water quality on-site. This setting is made during commis-
sioning by an service technician authorised by MEIKO or the chemical supplier.
Change dosing quantity, see page 47.
4.6.3 Dosing equipment
The components of the dosing units are subject to high demands and must therefore
be regularly maintained and, if necessary, replaced in accordance with the mainte-
nance specification.
The service life of the dosing units and other components of the dishwashing ma-
chine depends on the use of suitable chemical products. MEIKO recommends
MEIKO ACTIVE detergent and rinse aid. MEIKO ACTIVE products are optimally
adapted to the dishwashing machine.
4.6.4 Suction lances
Suction lances with level monitoring for rinse aid (blue) and detergent (grey)
Suction lances ensure that the liquid chemical product is sucked in correctly. Suction
lances are inserted vertically into the canisters and are optionally equipped with level
monitoring. When the canister is running low, a message will appear on the machine
display.
4.6.5 Change of products
Caution
When changing the detergent product (even to a product from the same
manufacturer), crystallisation may occur, which can lead to failure of the
dosing system.
•When changing the detergent product, flush the dosing system with warm wa-
ter.
Procedure for changing the detergent product:
1. Provide a suitable container with warm water and insert the suction lance.
2. Thoroughly flush the dosing system several times by venting the lines, see
page 45.
3. Wipe the suction lance and put it into the canister with the other detergent prod-
uct.
4. Refill the dosing system by venting the lines.
For dishwashers with an internal reservoir, have the system flushed by a service
technician authorised by MEIKO.

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4.7 Options
4.7.1 GiO-MODULE
The module works according to the principle of reverse osmosis. Drinking water is
pressed by a pump through a semi-permeable membrane. The membrane lets only
water molecules through. The hardness components and salts (lime scale, etc.) con-
tained in the water are held back. The clean water (permeate) is brought to the dish-
washing machine; the materials held back (concentrate) are brought to the drain.
4.7.2 ComfortAir heat recovery
Two heat exchangers can be found in the side walls of the dishwashing machine.
These are filled with cold fresh water after the final rinse. A fan inside the machine
moves the air around so that the steam moves down and comes into contact with
the side walls. The water is warmed and is fed into the boiler so it is available for
the next wash cycle.
4.7.3 Bottle rack for M-iClean UM/UM+
Up to 16 bottles or carafes can be rinsed in the bottle rack at the same time. When
washing bottles, the lower wash arm is replaced by an adapter.
4.7.4 Cold water final rinse for glasswashers
For glasswashers (available at M-iClean UM), final rinsing in programmes I and II is
not carried out with hot (65°C) water, but with fresh water that is not heated.
Note
When the programme is changed from a hot final rinse programme to programme I
or II, it takes approximately 3-4 programme runs for the final rinse programme to be
performed with cold water.
When the programme is changed from programme I or II to a programme with hot
final rinse, the required temperatures are reached in the same programme run.
Programme I (short programme cold)
Programme II (standard programme
cold)
The glasses are cleaned with a rinsing temperature of 55°C. Then follows the final
rinse with unheated fresh water.
The cooling of the glasses can lead to temperature stresses in the glasses, which
require additional caution!
These glass temperatures can be assumed at a temperature of approx. 10°C for the
incoming water:
•Approx. 22-27°C immediately after removal
•Approx. Room temperature, 1-2 minutes after removal
•Approx. 30-35°C for thick-walled glasses (beer mugs), immediately after re-
moval
To ensure that the rinsing temperature of 55°C is reached, the machine has an ex-
tended running time. This means that the programme runs until the water is heated
to the required temperature (however, for a maximum of 5 minutes).

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Programme III (Intensive hot programme)
The glasses are cleaned with a rinsing temperature of 60°C. The final rinse is then
carried out with fresh water heated to 65°C. The described extension of the running
time also ensures that the required temperatures are reached in Programme III.
4.7.5 Disinfection control
Caution
Glass corrosion and loss of decorations due to high water temperatures and
long wash cycle times
•Make sure that the dishes and glassware used are suitable for the high stress
placed on them.
MEIKO offers two types of machine with thermal disinfection for institutions with ad-
ditional hygiene requirements. Both versions have greater heating performance in
the wash tank than standard machines.
A0control
The term A0refers to a way of measuring how microorganisms are eliminated by
moist heat disinfection methods. By using a moist heat disinfection method, it is ex-
pected that a specific temperature over a period of time has the effect of eliminating
a predictable number of microorganisms with a particular resistance.
The standard setting for a dishwasher with A0–control is the hygiene value A030:
•The tank temperature during washing is up to 74° C.
•For tank temperatures of 65° C or higher, each tank temperature is assigned a
factor.
•Using the measured tank temperature, a value is determined and added every
second until the hygiene value A030 is reached.
•The rinsing process runs until the end of the programme cycle time, but at least
until the temperature value is reached. After this comes a pause for draining
and the final rinse.
The display shows the current A0 value.
Thermolabel control
In a way which is similar to A0 control, machines with Thermolabel control have a
disinfection process which uses moist heat. The dishwasher heats the rinse water to
a higher temperature in order to eliminate germs. The efficacy of the disinfection can
be tested using a measurement strip, the Thermolabel. The measurement strip
changes colour after 4 seconds at 71 °C for a wash item.
•During washing, the tank temperature is heated up to 71° C and maintained at
that temperature.
•The rinsing process runs until the end of the programme cycle time, but at least
until the temperature value is reached. After this comes a pause for draining
and the final rinse.
•Washing at high temperatures and long spells in the wash tank can lead to
glass corrosion and premature wear to decoration.

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4.7.6 Daily protocol with MEIKO Connect
Data on operational times, consumption values and events can be read out via Blue-
tooth with the MEIKO Connect app and exported as a PDF. MEIKO Connect is avail-
able for Android in the Google Play Store and Huawei App Gallery. The Windows
version is available at www.meiko.info (search term MEIKO Connect).
4.8 Automatic standard functions
4.8.1 Eco mode
During periods of inactivity (pauses), the machine displays a leaf symbol to show
that energy is being saved and components are being protected.
Active fol-
lowing
Description
ECO MODE I
60 seconds
Rinse water temperature is lowered.
ECO MODE II
180 minutes
Additionally wash water temperature is reduced.
ECO MODE III
8 hours
Additionally the boiler is switched off and emptied.
ECO MODE IV
14 hours
Machine is drained and shut down.
Note
The wash cycle times are factory settings and can only be adjusted by a service
technician. Emptying is only possible when the door/hood is closed.
4.8.2 Forced drainage
If the wash tank and boiler have been full for 24 hours, they will be force drained.
The water in the wash tank and boiler is pumped out.
Forced drainage takes place depending on operational status:
•MACHINE OFF: when machine is switched on
•ECO MODE: either after 24 hours or upon start of Eco mode III or IV, .
•As soon as the door or hood is closed for the first time after 24 hours have
passed.
5 Technical data
MEIKO has created a dimensional drawing that shows machine dimensions as well
as connection and consumption values.
Further data should be taken from the MEIKO dimensional drawing.
Machine weight
Equipment
Basic machine
Basic machine
Basic machine
Versions
+ GiO in the base
+ GiO separate
M-iClean US
56 kg
63 kg
80 kg
M-iClean UM
63 kg
82 kg
87 kg
M-iClean UM+
74 kg
93 kg
98 kg
M-iClean UL
77 kg
96 kg
101 kg