MEIKO UPster U 400 M2 Glass and Dishwasher User Manual

UPster U 400 M2 Glass and Dishwasher
User Manual

UPster U 400 M2
Glass- and dishwasher
Operating instructions

For the types in the series: M001DWUC10M3-10
Read operating instructions before using the machine!

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 persons 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:
UPster U 400 T M2:
M001DWUC10M3-10
1.2 Delivery contents
The delivery contents include:

• 1x glasswasher UPster U 400 M2
• Matching racks for glassware and dishes depending on machine model
• Connecting hoses for fresh water and waste water
• Documentation

1 .3 Related documents
In addition to these operating instructions, there are other documents that are available depending on the authorisation:

module separately)
| Service instructions

Liability and warranty

All of MEIKO’s obligations arise from the relevant purchase contract, which also contains 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.

Safety

3.1 Symbol explanation
3.1.1 Notes in the instructions
In these operating instructions, important notes for safety are specially marked with symbols. Please always observe these notes to avoid accidents and damages to the system.
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.
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:

Caution, keep hands away from parts that bear this warning symbol. The danger exists
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

3.2 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 service 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 under the supervision of an experienced person.

The required qualifications for performing specific work at the machine are determined 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.
  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.

3.3 Residual risks

adequate for the weight of the machine
• Please note the machine’s centre of gravity
• Secure to prevent slipping
Deposit at the installa- tion site| Crushing/impact| • Ensure that the ground beneath is capable of taking the load
• Ensure that the machine cannot tip
Install electrical con- nections| Electric shock| •  Only skilled personnel may connect up the machine
• Adhere to the accident prevention regulations

Commissioning

| Fill with detergent/rinse aid| Eye injury/health risks| • Wear safety eyewear/gloves
• Avoid contact with skin and eyes
Activities in the ma- chine| Hand injuries on sharp edges| • Wear protective gloves
Operation| Programme is running| Contact with hot water| • Do not open door during programme run
Loading and unloading the machine| Trapping of hand| • To close the machine door, use the handle designated for this purpose
Broken crockery causing cuts/severing| • Wash/clean washware in the specially de- signed 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

Contact with hot water and hot machine parts

| • If necessary, allow washware to cool down
• If necessary, allow machine components to cool down before touching
• Protective gloves recommended
Other activities| Injury through standing or sit- ting 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/suffoca- tion| •  Only allow specialist personnel to adjust dos- ing
Refilling deter- gent/rinse aid| 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
Contact with hot water and hot machine parts| • Allow machine components to cool down be- fore touching
• Wear protective gloves
Cleaning| Poisoning| • Do not use aggressive cleaning or scouring agents
• Only use descaling products suitable for com- mercial machines
Phase| Activity| Nature of the hazard| Avoidance measure
---|---|---|---
| | | • Wear protective gloves
Dismantling and disposal| Dismantling| Eye injury/health risks| • Wear safety eyewear/gloves
• Avoid contact with skin and eyes
•If needed, 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

3.4 Intended use
The dishwashing machine must only be used in accordance with its intended purpose 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 (info@meiko- global.com).
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.

3.5 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

3.6 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 dishwashing 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 installation 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 functioning correctly.
• 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 itself 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 machine 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 personnel.
• 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 device.
  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 machines.
• 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 eyewear.
• Do not confuse detergent and rinse aid.
• Ensure that the suction connections for the dishwashing machine are correctly connected to the canisters.

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.

Information on cleaning the machine
Foam can cause malfunctions in the dishwashing machine and a poor washing result.

• 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 technical reasons, only the electric appliances emit non-ionizing radiation. In the immediate vicinity  If the dishwashing machine, the influence of active implants (e.g. cardiac pacemakers, defibrillators) can be ruled out with a high degree of probability.
3.7 What to do in the event of an emergency

• In dangerous situations, disconnect from the power supply using the locally available mains isolator.

Product description

4.1 Functional description
The UPster U 400 M2 is a commercial glasswasher 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 water 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 separate 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 reduces the degree of soiling of the rinse water.
4.2 Overview illustration
Exterior view

1. Operating panel (see page 22)
2. Door handle
3. Door
4. Detergent storage tank (option)
5. Storage tank for rinse agent (option)
6. Height-adjustable foot

1. Potential equalisation connection
2. Fresh water connection G ¾”
3. Electrical connection
4. Waste water connection
5. Connections for detergent and rinse aid

Interior view

1. Operating panel
2. Rack runner
3. Rotating arm wash system
4. Filter with stand pipe

4.3 Type label
The rating plate is located on the left side or right side in the lower rear section of the dishwasher. An additional rating plate is located on the switch cabinet behind the front panel.
The following information can be found on the rating plate:

1. Name and address of manufacturer
2. Machine type
3. Model name
4. Serial number
5. Current type
6. Electrical connection
7. Rated power boiler
8. Water pressure
9. Boiler capacity
10. Steam connection
11. Year of manufacture
12. CE mark
13. IP protection rating

4.4 Blue operating concept

1. Filter
2. Stand pipe
3. Nozzle cap
4. Retaining screw for wash system

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 example.
4.5 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 external dosing system.  In this case, further information can be found on the wiring diagram and in the External dosing document.
4.5.1 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 chapter “Dosing system level” on page 36.
4.5.2 Rinse aid
Rinse aids are acidic (pH value should be between 2 and 7) and accelerate the drying 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 commissioning by an service technician authorised by MEIKO or the chemical supplier.
Change dosing quantity, see chapter “Dosing system level” on page 36.
4.5.3 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 maintenance specification. The service life of the dosing units and other components of the dishwashing machine 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.
4.5.4 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.
4.5.5 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 water.

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 35.
3. Wipe the suction lance and put it into the canister with the other detergent product.
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.

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.
Net weight

Noise emission
Workplace noise level LpA ≤ 70 dB (A).
5.1 EC/EU declaration of conformity
See separate EC-/EU-Declaration of Conformity.

Assembly

**Warning
Danger of injury from entering a danger zone**
Unauthorised persons might be in or enter the danger zone during transport, assembly, commissioning, maintenance and repair work. This can lead to injuries.

• Only permit qualified persons to perform work at the machine.
• Remove unauthorised persons from the danger zone.
• Cordon off danger zone and signpost it for third parties.
• Never remove or disable safety devices on the machine.
• Always wear cut-resistant protective gloves when removing housing parts and when working inside the machine!

6.1 Prerequisites for assembly
6.1.1 Checking the condition at delivery

• Check that the delivery is complete immediately after receiving it by comparing it with MEIKO’s order confirmation and/or the delivery note.
• If applicable, submit a claim for any missing parts immediately to the freight forwarder and notify MEIKO.
• Check the machine for transportation damage.

Note
If there is any suspicion of transportation damage, the shipping company and MEIKO must be informed immediately in writing. Photograph any damaged parts and send the pictures to MEIKO.
6.1.2 Requirements for the installation area
The dishwashing machine is only frost-proof in as-delivered state or if equipped with special features (optional: frost removal).
Installation of the dishwashing machine in an area where the ambient temperature is below 0° C can result in damage to the internal water circuit components (e.g. pump, solenoid valve, boiler, etc.).

• Ensure that the storage and installation locations are always frost free.

There is a danger of slipping in the working area due to the use of water.

• After assembly, put in place non-slip floor coverings in the working area based on the general/location-specific safety regulations.

6.1.3 Requirements for the waste water connection
A waste water pump is optionally integrated into the drain pump.

• Connect the drainage hose to the locally available waste water pipe.

– For Australia only:
The drainage hose needs to have a watertight connection to a waste fitting complying with AS 1589 AS 2887, a sanitary plumbing pipe or fitting complying with AS/NZS 1260.

• Depending on the dishwasher application, a grease trap may be included,based on the general/location-specific regulations.

6.1.4 Requirements for the fresh water connection
Fresh water connections and their components must be carried out in accordance with local regulations, e.g. EN 1717/DIN 1988-100. The fresh water must be of the same
quality as drinking water in microbiological terms. This also applies to processed water.
The basic model of the dishwashing machine is equipped with a safety device against backflow in accordance with DIN EN 60335-2-58 or with an air gap (type AA in accordance with EN 1717 or EN 61770). In the case of SVGW (Switzerland) and other countries, a type EA safety device (at least) is also required in front of the connection
hose, depending on the machine version.
An on-site stop valve must be built into the fresh water supply for the operating staff. Installation components and materials must be suitable and permitted in accordance with local regulations. A solenoid valve is integrated into the dishwashing machine’s fresh water line.
Pressure range of the fresh water supply flow pressure upstream of the solenoid valve:

• Machines with air gap or pressure booster pump: 60 – 500 kPa (0.6 – 5 bar)
•  Machines with a safety device to prevent backflow: 250 – 500 kPa (2.5 – 5 bar)

Maximum pressure

• Do not exceed maximum pressure of 500 kPa (5 bar).

Measures to ensure correct water pressure:

• If the minimum flow pressure is too low, increase the pressure using a pressure booster pump.
• If the maximum pressure is exceeded, limit the pressure using a pressure regulator.

Other measures:

• Ensure that no foreign iron particles can enter the appliance via the fresh water connection. The same also applies for contamination by other metal particles (e.g. copper shavings). Corresponding instructions are contained in the assembly  plan.
• A dirt trap must be fitted in the fresh water supply to protect the solenoid valve.
• After the dishwashing machine has been unused for longer periods of time, drain the connection line and wash it before placing the machine in operation again.
• When replacing an old machine with a new one, make sure that the existing feed hose is exchanged for the new feed hose supplied with the machine.

6.1.5 Requirements to the electrical connection
Warning
Danger to life from electric shock
Contact with live electrical parts can lead to serious injury or death.

• Work at or repairs to the electrical system must be conducted by a qualified electrician who complies with the electrotechnical rules.
• Disconnect the machine from the power supply before working on the electrical system. To do this, turn the local mains switch to OFF and ensure that it can’t be switched back on again.

Note
The wiring diagram is located behind the front panel of the dishwashing machine.
This must remain in the machine!
The type plate with the electrical connected values is located inside the front panel.
Other dangers
Danger of death by electric shock: contact with live electrical parts can lead to serious injury or death.
Who may connect it?
The machine must be connected by a (MEIKO authorised) qualified electrician in accordance with the locally applicable standards and regulations.
Local earth wire system
The electrical safety of this machine is only ensured if it is connected to a properly installed protective conductor system. It is very important to verify this fundamental safety feature. If in doubt, have the building wiring checked by an electrician.
Voltage and frequency
The machine may only be operated with the data provided on the rating plate (see page 14). Take note of the available connection variants.
Power cable/fixed connection:
Recommended connection with protective equipotential bonding
The machine and accessory appliances are intended for permanent connection to the locally available power supply and the locally available protective equipotential bonding and have been tested accordingly before being brought to market. A 5-pole terminal strip (L1, L2, L3, N, PE) must be used for connection to a threephase current.
Electricity supply without a neutral wire (N): When connecting to three-phase current, use a 4-pole clamping strip (L1, L2, L3, PE).
Wire colours: live wire L1 = black/1, L2 = brown/2, L3 = grey/3, neutral wire N = blue/4, protective earth conductor PE = green-yellow
Alternative connection without protective equipotential bonding
The operator can decide at his/her own discretion and under his/her own responsibility to connect the electrical supply using customer resources in collaboration with a professional electrician:

1. Fixed connection without protective equipotential bonding
2. Plug connection according to EN 60309 (CEE plug connection)

Note
Where discharge currents exceed 10 mA, the use of an RCD/FI is not recommended. False alarms restrict machine availability. MEIKO expressly excludes any liability for damages caused by improper connection of the machine.
This includes any work in connection with services due to said connection, e.g. processing complaints or claims due to:

• Triggered RCD/FI
• Automatic shut-down of the supply when consistency is lost in the protective earth conductor (EN 60204-1 Chap. 8.2.8.c)

Local main switch
Install a main switch with all-pole disconnection from the mains in accordance with the installer’s regulations in the permanently installed on-site installation. The main switch must be easily accessible for the operating personnel. The contact opening width must correspond to overvoltage category III in each pole. Refer to the circuit diagram or the data sheet of the main switch for technical data such as torque and stripping length.
If an unearthed neutral conductor (N) is used with three-phase current, a power disconnection device with 4 poles (with alternating current 2 poles) must be used.
Local fuse protection
Fuse the machine for the rated current shown on the rating plate. Fuse the electrical connection as a separately fused circuit (final circuit). Take note of the connection variants.
Protective equipotential bonding The screw for the potential equalisation is located on the back of the machine near the media connections.
The potential equalisation connection must be carried out in accordance with the requirements of the local electricity supply companies and all applicable local regulations (in
Germany VDE 0100 Part 540).
Incorporate the machine and any conductive substructures and table systems into the local potential equalisation system.

6.2 Transport
WARNING – danger of injury due to machine tipping

• Only qualified personnel may carry out transport works.
• Please note safety notices on the packaging.
• Always transport the machine on a wooden frame only.
• Wear protective gloves and safety shoes.

The packaging is specifically designed to allow the appliances to be moved safely and securely using a pallet jack or a sack truck. For safe transport, the dishwashing machine is supported by a special square-timber frame.

• Execute transport carefully.
• Open packaging using a suitable tool.
• Unpack the dishwashing machine only after transport is completed.

6.3 Perform assembly
Warning
Danger of injury due to machine tipping
If machine is freestanding and not secured, it could fall over and cause crushing.

• If machine if freestanding, it must be secured long term to prevent tipping.
• Wear protective gloves and safety shoes.

Beware
Improper fresh water connection
Backsiphonage of non drinking water into the water supply system

• Have the fresh water connected by a qualified professional and in accordance with local regulations.

Caution
Material damage due to ingress of pressurised media

• Shut off the fresh water supply at the main valve prior to installation works.
• Check that all lines are securely connected.

Caution
Material damage due to steam escape
Small quantities of steam may escape through the dishwashing machine’s door area. It is possible that adjacent furniture can swell up.

• Protect adjacent furniture from swelling up.
• If possible, avoid installing the machine in an area close to sensitive furniture.

Note
Assembly may be performed only by a licensed and authorised service technician!
Assembly must be carried out in accordance with the installation drawing.

• Ensure the machine is level in both directions by using a water level.

• Compensate for an uneven floor by adjusting the foot studs (1).
  

• Table joints must be sealed with detergent-resistant sealing compound (e.g. silicone).

• Check that the machine is stable.

For disposal of packaging materials, see chapter “Dismantling and disposal” on page 43!

Commissioning

Warning

Danger of injury from entering a danger zone
Unauthorised persons might be in or enter the danger zone during transport, assembly, commissioning, maintenance and repair work. This can lead to injuries.

• Only permit qualified persons to perform work at the machine.
• Remove unauthorised persons from the danger zone.
• Cordon off danger zone and signpost it for third parties.
• Never remove or disable safety devices on the machine.
• Always wear cut-resistant protective gloves when removing housing parts and when working inside the machine!

7.1 Check prerequisites for commissioning
Caution
Material damage due to steam escape
Small quantities of steam may escape through the dishwashing machine’s door area. It is possible that adjacent furniture can swell up.

• Protect adjacent furniture from swelling up.
• If possible, avoid installing the machine in an area close to sensitive furniture.

Prerequisites to be provided by the customer:

• Consistently frost free storage and installation area.
• Anti-slip floor coverings installed in the work area around the dishwashing machine.
• Electrical connection in accordance with the dimensional drawing.
• Fresh water connection in accordance with the dimensional drawing.
• Waste water connection in accordance with the dimensional drawing.

7.2 Perform commissioning
Note
Instruction and initial commissioning may be performed only by an authorised service technician! The operator must not use the dishwashing machine before completing training.
To avoid damage to the appliance or dangerous injuries during commissioning of the machine, please note the following points:

• Check supplier parts (e.g. external water processing devices or heating pumps). More detailed information can be found in the relevant operating instructions.
• Ensure that all tools and foreign parts are removed from the machine.
• Make sure that any escaped fluids have been removed.
• Before commissioning, activate all safety systems and door switches (on undercounter machines).
• Check all screw connections sit securely.
• For dishwashing machines with GiO Module, attention must be paid to the “Commissioning certificate for GiO Modules” and the instructions adhered to accordingly.

Operation/use

8.1 Membrane key pad
The dishwasher is equipped with a membrane key pad. It includes 4 operating keys and 3 control lights. A display reports the current temperatures of the wash and rinse water and displays information messages and error codes, if applicable. Control lights with the keys show readiness to operate, the active wash programme, the current wash cycle and, if applicable, necessary and active regeneration.
The meaning of each of the keys and symbols is described below.

Control light lit: wash programme is running
Control light flashing: self-cleaning programme / drain programme is running
| Wash programme keys 1 – 3 with control lights
Control light 1, 2 or 3 lit: dishwasher ready to run / wash programme 1, 2 or 3 selected
Control light 1, 2 or 3 flashing: dishwasher is being made ready for operation
| Current wash temperature
| Current final rinse temperature

8.2 Prepare dishwasher
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.

System operators must be very familiar with the Operating Instructions of the dishwashing machine. Incorrect operation may result in personal injury or material damage.

1. Ensure the water supply is available.
   

2. Switch on the local mains switch.

3. Check detergent and rinse aid and top up, if required, see chapter “Fill consumables” on page 28.

4. Ensure that the hoses are fed down to the base of the container. Note
   If there is air in the hoses, the automatic dosing will not function correctly. The relevant pipe must be ventilated, see chapter “Ventilating the pipes” on page 35.

5. Open door
   

6. Insert filter, stand pipe and wash systems.
   

7. Close door.

8.2.1 Putting the machine into operation
The dishwasher is closed and does not have a rack inside.
1. Press on/off key.
The dishwasher is filling and heating up. During this time, the control light flashes over the selected wash programme key. The time required for the machine to be ready to operate depends on the temperature of the water supply and the installed boiler or tank heating capacity.
When the machine is ready to operate, the control light above the selected wash programme key is lit permanently.
8.3 Washing
8.3.1 Putting away washware

• All hollow containers must always be loaded upside down. Otherwise the water will not be drained from the wash ware and brilliant drying will not be possible.
  

• Place plates, trays and dishes into the baskets at an angle. The inner surfaces face upwards.
  

• If cutlery holders are used, always insert the cutlery pieces with the handles down.
  

• Mix up the spoons, knives and forks as much as possible in each cutlery basket, since similar cutlery pieces may nest together.

• Do not put too many cutlery pieces into the individual cutlery baskets.
  

• Do not stack crockery items on top of each other in the basket. Direct access to the wash water would be more difficult and the washing times would have to be unnecessarily long. Shorter washing with baskets which are not overfilled is more economical.

8.3.2 Select wash programme
1. Press the desired wash programme key.
The control light of the selected wash programme key is lit.

| Short programme| Lightly soiled washware

| Standard pro- gramme‚| Normally soiled washware

| Intensive pro- grammeƒ| Heavily soiled washware

Programme configuration
Depending on the machine type and the electricity and water supply, the programme configuration can vary. The programme configuration is shown in the following table.
Programme table

Wash programme no.

| Setpoint boiler temperature| Wash time setpoint
---|---|---
Washing|

Total

| [°C]| [s]| [s]
1| 83| 44| 60
2| 83| 74| 90
3| 83| 104| 120
4| 83| 134| 160
5| 83| 164| 180
6| 83| 194| 210
7| 83| 224| 240
8| 83| 254| 270
9| 83| 284| 300
10| 83| 344| 360
11| 65| 44| 60
12| 65| 74| 90
13| 65| 104| 120
14| 65| 134| 160
15| 65| 164| 180
16| 85| 44| 60
17| 85| 74| 90
18| 85| 104| 120
19| 85| 134| 150
20| 85| 164| 180
21| 85| 194| 210
22| 85| 224| 240
23| 85| 254| 270
24| 85| 284| 300
25| 85| 344| 360
26| 75| 44| 60
27| 75| 74| 90
28| 75| 104| 120
29| 75| 134| 150
30| 75| 164| 180
31| 75| 194| 210
32| 75| 224| 240
33| 75| 254| 270
| [°C]| [s]| [s]
---|---|---|---
34| 75| 284| 300
35| 75| 344| 360
36| 65| 224| 240
37–48| 80| 104| 120
49| 65| 74| 80
50| 83| 104| 120

Note
The concentration of the rinse aid in the water remains constant: if the rinse time is changed, the dosage amount of the rinse aid changes correspondingly.
8.3.3 Start wash cycle

1. Clear the washware (removing any large food residues, napkins, tooth picks, lemon peel etc.).

2. Put the washware into the rack.

3. Open door.

4. Insert the rack into the dishwasher.

5. Ensure that the correct programme has been selected, see chapter “Select wash programme” on page 24. ****

6. Close door.

7. Press the wash key. The control light above the wash key is lit. The machine washes automatically and switches the programme off after completion. The wash cycle time may differ from  the set programme running time if the programme  running time is not sufficient to heat up the boiler and tank water to the pre-set temperature. In this case, the cycletime is automatically extended. This means that the dishwasher runs until the required temperatures are reached, but max. 5 minutes.

8.3.4 Emptying the washware

Caution
Danger from hot wash water, washware and machine parts

• Wear protective gloves if necessary.
• Let the washware cool down before emptying, if necessary.
• Let the machine cool down before touching machine parts, if necessary.
• Never open the machine door or hood during a wash cycle.
• Only open and close the hood/door using the designated handle(s).

After the programme ends, the control light above the wash key turns off and an acoustic signal sounds.

1. Open door.

2. Carefully remove the rack.
   

3. Close door.
   

8.4 Shutting down the dishwasher
The dishwashing machine does not have a rack inside.

1. Press On/Off button. All control lights turn off.

2. Remove the stand pipe and close the door.
   For dishwashing machines without drain pump, water runs into the drain. For dishwashing machines with drain pump, pressing the wash key starts the drain pump process.

3. **** Press the wash key to start the self-cleaning programme.
   The control light on the wash key will flash. The rinse water is pumped out, if necessary, and the wash chamber is sprayed with hot fresh water. After the programme ends, the control light turns off.

4. Close stop valve. After the end of the process, clean the machine, see chapter “Daily cleaning” on page 40.

8.5 Fill consumables
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.

8.5.1 Refill of internal storage container
The storage tanks are located on the front of the lower front panel. The fill level
can be read from the front. The detergent tank (1) is transparent, the rinse aid tank (2) is blue.

1.  Swing the corresponding tank down for filling and open the cover.
   Dosing recommendation

2. Pour the appropriate chemical for dosing into a measuring cup.
   ****Maximum filling quantity| UPster U 400 M2
   ---|---
   Detergent / rinse aid| 480 ml

3. Use the loading chute to pour the chemical carefully into the tank until full.Check fill level.

4. Rinse the loading chute and measuring cup.

5. Close the cover of the storage tank and swing it up.

8.5.2 Replace canister
Note
The canisters for detergent and rinse aid are located in close proximity to the dishwashing machine.
Note
When using a suction lance which detects whether a canister is empty, a shortage of detergent or rinse aid will be indicated on the display.
A canister is empty.

1. Remove the suction lance from the empty canister and insert it into a full canister.

2. If necessary, ventilate the pipelines, see page 35.
   

8.6 Changing water

The dishwasher does not have a rack inside.

1. Press on/off key. All control lights turn off.

2. Remove the stand pipe and close the door.
   For dishwashers without drain pump, water runs into the drain. For dishwashers with drain pup, pressing the wash key starts the drain pump process.

3. **** Press the wash key to start the self-cleaning programme.
   The control light on the wash key is flashing. The rinse water is pumped out, if necessary, and the wash chamber is sprayed with hot fresh water.

4. Replace the stand pipe and close the door.

5. Place the dishwasher into operation by pressing a wash programme key.

8.7 Malfunctions
If the described operational problems occur repeatedly, the cause must be identified.
Occasional malfunctions

Malfunction| Possible cause|

Remedy

---|---|---
Dishwashing machine doesn’t fill up| No water present| Open the shut-off valve
Dirt trap clogged| Clean the dirt trap
Door open| Close door
Final rinse does not spray| No water present| Open the shut-off valve
Dirt trap clogged| Clean the dirt trap
Streaks / smears on the washware| Unsuitable rinse aid| Change product
Incorrect dosing quantity| Adjust dosing quantity
Water pre-treatment defective| Check water pre-treatment
Strong formation of foam in the wash tank| Dirt level too high| Prepare the washware more thor- oughly/change tank water more frequently
Manual dishwashing detergent used| Do not use a foaming manual dishwashing detergent for precleaning or for cleaning the machine. Foam can cause malfunctions in the dishwashing machine and a poor wash- ing result.
Unsuitable detergent| Change product
Unsuitable rinse aid| Change product

As a rule, faults that are not described here require assistance from an authorised service technician. Please contact your subsidiary or authorised dealer
8.7.1 Messages

When a malfunction occurs, an information or error message (INFO/ERR) is displayed.

• Information messages (INFO) can be acknowledged with the wash key. If the cause has been remedied (see table), operation can be continued.
• Error messages (ERR) usually require the deployment of an authorised service technician!
• If the machine displays an info or error message not listed in the following tables, contact your service technician!

INFO| Description| Possible cause| Measures/remedial action
---|---|---|---
120| Emergency pro- gramme active| • No boiler/tank heating
• No fresh water supply| • Possible to continue work at limited capacity
• Call a service technician!
121| Door/hood not closed| • Door/hood open
• I/O circuit board defective
• Microswitch defective
• Microswitch not correctly set| • Close door/hood
• Call a service technician!
122| Incorrect password/no authorisation| • Code incorrectly entered| •Enter code again
123| setting param-
eter list| •Switch supply voltage on/off| •No intervention by the operator is necessary
•Message disappears after 5 min.
126| Maintenance neces- sary| •The set operating hours
(P 122)or batch number
(P 123)has been reached| •Possible to continue working
•Call a service technician!
420| Lack of rinse aid (with integrated fill-level de- tection )| •Canister empty
•Suction lance not correctly introduced| •Replace empty canister
•Check suction lance
•Where appropriate, ventilate pipes
520| Lack of detergent (with integrated fill-level de- tection)
720| Regeneration is run-generation| •Regeneration programme been started and is run- ning| •Let regeneration programme run to completion
•Regeneration programme cannot be interrupted
•Possible to continue working
721| Regeneration not pos- sible| •Salt container empty| Fill salt container
722| Salt container empty| •No salt present
•No water in the salt container| Fill salt container
•Where appropriate, Fill water in the salt container
ERR| Description| Possible cause| Measures! remedial action
---|---|---|---
001| EEPROM error| •EEPROM
— Not present/defective
— Installed incorrectly
— Incorrect data/empty| •Not possible to continue working
•Call a service technician!
111| Floor pan leakage| •There is a leak| •Not possible to continue working
•Call a service technician!
118| Signal of the two door contact switches unequal| • Malfunction/defect door contact switch| •Not possible to continue working
•Call a service technician!
201| Boiler level not reached during first filling (with integrated pres- sure booster pump)| •Fresh water inlet insufficient (water tap closed)
•Feed hose kinked/discon- nected/leaks
•Inlet filter soiled
• Solenoid valve defective  Boiler switch defective| • Check water supply Check feed hose
• Check pre-filter/sieve and clean, if necessary
• Where appropriate, call a service technician!
202| Boiler level not reached on time during filling (with integrated pressure booster pump)
ERR| Description| Possible cause| Measures / remedial action
---|---|---|---
203| No change detected by the boiler level switch when empty- ing (with integrated pressure booster pump)| • Pressure booster pump defective
• Plug connections disconnected (e.g. pressure booster pump)
• Start capacitor defective
• Boiler level switch defective
• No signal to or from pressure booster pump and I/O circuit board
• No signal boiler full – from I/O cir- cuit board| • Not possible to continue working

• Call a service technician!

204| No change yet detected at the boiler level switch (with inte- grated pressure booster pump installed) after the rinse time ex- pired
205| Boiler temperature not reached after max. heat time (P310)| •  Boiler heating defective/melting beads, heating element
• Temperature sensor defective, in- correct installation position
• Boiler protection defective, output switch triggered
• No signal from I/O circuit board| • Not possible to continue working
• Call a service technician!
206| Wash time increase| • Boiler not ready for final rinse on time (temperature or level not reached)
• Boiler heating defective (melting beads)
• Temperature sensor defective
• Boiler protection defective, output switch triggered
• No signal from I/O circuit board| • Acknowledge message, con- tinued work possible
• Let programme run without intervention by the operator
• If it occurs frequently, call a service technician!
210| Boiler temperature sensor short- circuit| • Sensor defective
•  Sensor position not correct
• Plug contact not connected properly| • Not possible to continue working
•  Call a service technician!
211| Boiler temperature sensor inter- ruption
212| “Actual” boiler temperature too high (>95°C)| • Contactor sticking
• Incorrect sensor/defective sensor| • Not possible to continue working
• Call a service technician!
301| Number of circulatory pumping cycles for tank filling exceeded Tank level analysis disrupted| • Feeding water pressure too low
• Inlet filter soiled
• Rinse nozzles dirty
• Air trap dirty
• Condensate in level pipe
• Feed hose kinked/discon- nected/leaks| • Check water supply
•  Check feed hose
•  Clean inlet filter
• Clean rinse nozzles
• Call a service technician!
302| While drain pumping during the wash programme, tank level 1 is not fallen below on time (with in- tegrated drain pump)| • Drain pump output too low
• Drain pump dirty/defective
• Impeller loose
• Drain pump plug connection open
• Start capacitor defective
• Tank level analysis disrupted
• Aquastop does not close correctly
• No signal from I/O circuit board| • Not possible to continue working
• Call a service technician!
303| While drain pumping during the wash programme, tank level 3 is not fallen below on time (with in- tegrated drain pump)
ERR| Description| Possible cause| Measures / remedial action
---|---|---|---
304| Tank temperature not reached after max. heat time (P314)| • Tank heating defective/melting beads, heating element
•  Temperature sensor defective, in- correct installation position
• Tank protection defective, output switch triggered| • Not possible to continue working
• Call a service technician!
305| Number of boiler fills insufficient for rinsing. Tank level 2 not reached| • Feeding water pressure too low
• Inlet filter soiled
•  Rinse nozzles dirty
• Air trap dirty
• Condensate in level pipe
• Feed hose kinked/discon- nected/leaks
•  Level sensor defective
•  Plug contact not connected properly| • Check water supply
• Check feed hose
• Clean inlet filter
• Clean rinse nozzles
• Call a service technician!
306| Max. tank level exceeded Tank level analysis disrupted.| • Air trap dirty
• Condensate in level pipe
• Level sensor defective
• Plug contact not connected properly| •  Empty dishwashing machine and refill
• Call a service technician!
307| Tank level sensor defective| •  Connection plug loosened
•  Sensor or I/O circuit board defec- tive| • Call a service technician!
310| Temperature sensor short-circuit| • Sensor defective
• Sensor position not correct
•  Plug contact not connected properly| •  Not possible to continue working
•  Call a service technician!
311|

Temperature sensor interruption

312| Actual tank temperature too high (>85°C)| •  Contactor sticking
•  Incorrect sensor/defective sensor| •  Not possible to continue working
• Call a service technician!

8.8 Change authorisation level

| On/Off button
Start programming
**| Wash key
Confirm entry and jump to next position in the code
**| Wash programme key 1
Increase value by one
**| Wash programme key 2**
Decrease value by one

1. Press and hold the on/off key for approximately three seconds.

2. Enter the service code for the required authorisation level.

After entry of the correct code, the desired authorisation level (1, 4) is displayed in the left field on the first digital position. If the entry is false, the message Info 122 appears.

Authorisation level 1 – service level
Read service data (service code: 10000)
The operator can view the service data.
Read / modify service data (service code 10001)
The operator can carry out all functions required for normal operation and configure the settings.

Authorisation level 4 – dosing equipment level
Read settings (service code: 40000)
The operator can view the data for the dosing equipment.
Read / modify settings (service code 40044)
The operator can view/edit all the relevant parameters for the dosing equipment.

8.9 Service level

page 36.

8.9.1 View parameters

1. Switch to authorisation level 1 Service level (10000), see chapter “Change authorisation level” on page 33.

2. Select the entry 1–1.
3. Confirm the selection.

The first parameter is displayed.
4. Scroll through and view the parameters using the wash programme keys.
The service level can be exited with the On/Off key.

8.9.2 Ventilating the pipes

The ventilation of the detergent or rinse pipes must be performed if air is sucked in from the dosing units. This occurs if a canister is completely emptied during operation,
or if one of the suction lances is not threaded through to the base of the canister.
1. Switch to authorisation level 1 Service level (10001), see page 33.

2. Select the entry 1–3 for ventilating the detergent pipe, and entry 1–2 for the rinse pipe.
3. Confirm the selection.

The respective pipes are being ventilated, and the remaining time in seconds is displayed. If necessary, repeat ventilation.
Venting can be cancelled with the on/off key.

8.9.3 Replace counter for partial desalination cartridge (optional)

For dishwashers with a partial desalination cartridge and activated end-of- service indicator, the counter must be reset after changing the partial desalination cartridge.
1. Switch to authorisation level 1 Service level (10001), see page 33.

2. To reset the counter, select entry 1-5.
3. Confirm the selection to reset the value.
The setting level can be departed with the on/off key.

8.10 Dosing system level
1. Switch to authorisation level 4, Dosing technology level (40000 or 40044), see page 33.
The parameters relevant for the dosing technology are displayed and can be changed.

1 = Activate through calculated running time
2 = Activate as per pressure booster pump
3 = Activate as per wash pump
P225| Detergent dosing unit activation method| 0 = Do not activate
1 = Activate through calculated running time
2 = Activate as per pressure booster pump
3 = Activate as per wash pump
P321| Rinse aid dosing unit output| 0.10 – 10 L/h
P322| Detergent dosing unit output| 0.10 – 20 L/h
P326| Rinse pipe bleed time| 0 – 255 s
P327| Detergent pipe bleed time| 0 – 100 s

Maintenance and cleaning

Warning
Danger to life from electric shock
Contact with live electrical parts can lead to serious injury or death.

• Work at or repairs to the electrical system must be conducted by a qualified electrician who complies with the electrotechnical rules.
• Disconnect the machine from the power supply before working on the electrical system. To do this, turn the local mains switch to OFF and ensure that it can’t be switched back on again.

Warning
Danger to life from electric shock if cover panels are open
If the machine is operated without cover panels, electrified parts are freely accessible. Contact with these parts can lead to serious injury or death.

• Disconnect the machine from the power supply before opening the cover panels. To do this, turn the local mains switch to OFF and ensure that it cannot be switched back on again.
• Attach all cover panels before placing the machine back in operation.

Warning
Danger of injury from entering a danger zone
Unauthorised persons might be in or enter the danger zone during transport, assembly, commissioning, maintenance and repair work. This can lead to injuries.

• Only permit qualified persons to perform work at the machine.
• Remove unauthorised persons from the danger zone.
• Cordon off danger zone and signpost it for third parties.
• Never remove or disable safety devices on the machine.
• Always wear cut-resistant protective gloves when removing housing parts and when working inside the machine!

Caution
Danger from hot wash water, washware and machine parts

• Wear protective gloves if necessary.
• Let the washware cool down before emptying, if necessary.
• Let the machine cool down before touching machine parts, if necessary.
• Never open the machine door or hood during a wash cycle.
• Only open and close the hood/door using the designated handle(s).

Caution
Environmental damage due to improper disposal of liquids
Environmentally hazardous liquids (e.g. grease and oils, hydraulic oils, coolants, cleaning agents containing solvents etc.) may be used during work on and with the machine. Improper disposal of these liquids can damage the environment.

• Always capture, store and transport liquids in suitable containers.
• Never mix liquids.
• Dispose of liquids properly in accordance with local requirements.

9.1 Maintenance

Note
MEIKO recommends having the machine serviced by an authorised service technician at least once a year. As part of the maintenance, an electrical safety inspection is also carried out in accordance with DIN VDE 0701-0702 / DGUV Regulation 3. Wear parts are checked and replaced, if necessary, and the machine tested. Cleaning work and changing pre-filters in machines with GiO MODULE must be carried out by trained operators. Neglected or improper maintenance increases the residual risk of unforeseen damage to property and persons, for which no liability will be assumed.

A functional test on all safety systems of the machine is carried out during every regular maintenance.

• Comply with the maintenance intervals prescribed in these operating instructions.
• Please note the maintenance instructions for the individual components in these operating instructions.
• Carefully dispose of any detergents that could harm the environment.

9.2 Maintenance table
Note
Maintenance work must only be carried out by MEIKO authorised staff!

Maintenance work
Visual check| Checked| Cleaned| Reconditioned| Mainte- nance re- quirement
---|---|---|---|---
1.         Error memory
Check error memory for unusual events using M-Commander 2.7| | | |
2.         Wash tank, wash and rinse system
Functional and visual check of washing and rinse arms| | | | annually
Check rotating arm hubs and replace if necessary| | | | annually
Clean and check rinse nozzles and swirl plates| | | | annually
Check air trap of the tank and clean if necessary| | | | annually
Check tank level control for leaks| | | | annually
Check sieves and filters| | | | annually
Check rack guide for damage| | | | annually
Check wash and rinse systems for leaks| | | | annually
Check water level in tank| | | | annually
Check tank and boiler heating| | | | annually
3.         Casing
Check casing, tank and cladding for damage and function| | | | annually
4.         Fresh water installation
Check valves| | | | annually
Check boiler level switch for leaks| | | | annually
Check boiler, hoses and clamps for leaks| | | | annually
5.         Wastewater installation
Check stand pipe| | | | annually
Check operation of drain pump during drainage| | | | annually
Check that pumps, hoses are not leaking| | | | annually
6.         Detergent dosing
Replace peristaltic hose| | | | annually
Check detergent dosing system is working and not leaking| | | | annually
Maintenance work
Visual check| Checked| Cleaned| Reconditioned| Mainte- nance re- quirement
---|---|---|---|---
7.         Rinse aid dosing
Replace peristaltic hose| | | | annually
Check rinse aid dosing system is working and not leaking| | | | annually
8.         Test run with functional test of whole machine
Check filling and heating until it is ready for operation| | | | annually
Visual inspection of the entire machine for leaks| | | | annually
Check sample rinsing and rinsing results| | | | annually
9.         Water quality, temperature
Fresh water| °C| °dH| °KH| µS/cm| | | | annually
10.        Electrical safety check (certificate is optional)
Visual inspection| | | | annually
Check earth wire| | | | annually
Measure insulation resistance| | | | annually
Measure current on protective earth conductor| | | | annually

9.3 Daily cleaning

Caution
Material damage due to water ingress
Electrical cables and electronic components can be damaged if they come into contact with water.

• The dishwashing machine, switch cabinets and other electrical components must never be sprayed with a hose or high pressure cleaner.
• Make sure that no water can enter the machine unintentionally.
• If installed at ground level, never flood the surrounding room.

Note
Do not use a foaming detergent for dish-washing by hand for pre-cleaning or cleaning the dishwasher. Foam causes malfunctions and results in poor wash results.
The machine is emptied, see chapter “Shutting down the dishwasher” on page 27.

1. Open door.

2. Remove filter, wash systems below and rinse arm above. All parts to be cleaned are blue or have a blue handle.

3. Remove all food residues sticking to the tank and tank heater using a brush.

4. Rinse wash and rinse arms thoroughly under running water. When doing this, pay particular attention to the nozzles! The platelets in each nozzle must be correctly inserted!

5. Clean filter under running water.

6. Reinstall all parts in reverse sequence.

9.4 Cleaning the stainless steel surfaces

Caution
Material damage due to incorrect cleaning
Cleaning of parts made of stainless steel with unsuitable cleaning agents, care products and cleaning utensils leads to damage, deposits or discolourations on the machine.

• Never use aggressive cleaning or scouring agents.
• Never use cleaning agents that contain hydrochloric acid or bleaches based on chlorine.
• Do not use cleaning utensils previously used to clean non-stainless steel.

Caution
Material damage due to aggressive cleaning products
The use of aggressive cleaning and care products near the machine can cause damage to the machine due to their fumes.

• Make sure that the cleaning and care products cannot have direct contact with the machine.
• Do not use aggressive cleaning agents (e.g. aggressive tile cleaner) to clean the surrounding area.
• Please observe the notes on the product packaging.
• In case of uncertainty, request information from the suppliers of these products.

We recommend that, when required, the stainless steel surfaces are cleaned exclusively using cleaning and care products that are suitable for stainless steel.

• Lightly soiled parts can be cleaned with a soft and possibly damp cloth or sponge. For moistening we recommend only using demineralised water.
• In order to prevent limescale, we recommend wiping the surfaces thoroughly dry after cleaning.

9.5 Descaling

**Warning
Danger of injury from contact with acids**
Descaling agents can cause damage to health if they come into contact with skin or eyes or are swallowed.

• Use eye protection.
• Wear protective gloves.
• Contact a physician immediately if chemicals or water containing chemicals (rinse water) are swallowed.
• Please take note of the manufacturer’s safety instructions.

Caution
Destruction of plastic parts and seals from residues of de-scaling agent
Completely flush the de-scaling agent out of the dishwasher.
Operating the machine using hard water can result in the build up of lime scale deposits in the boiler and the tank interior. If this occurs, it is necessary to de-scale the tank
interior, boiler housing, tank heating, boiler heating and the washing and rinse systems.

Notes on conducting de-scaling:

• For de-scaling, only use products suitable for industrial dishwashers. Observe the manufacturer’s instructions!
• Completely flush the de-scaling agent out of the dishwasher. To do so, perform 1–2 wash cycles with fresh water.
• Possibly assign Customer Service the task of de-scaling the boiler.

9.6 Spare parts
Please provide the following information on any query and/or when ordering spare parts:

Type: ……………………………………………………..

SN: ……………………………………………………..
……………………………………………………..
(This information can be found on the type plate, see page 14.)

Non-use for several days

10.1 Break in operation (e.g. seasonal operation)

• Run self-cleaning programme and clean the machine, see page 27.
• Close the on-site shut-off valve.
• Switch off on-site mains isolator.
• Manually open a gap in the front door or hood to prevent germ formation and odours.
• Frost protection: If necessary, have the machine frost-proofed by the authorised service technician. Dishwashing machines of the M-iClean U series without GiO MODULE can be frost-proofed by yourself.

10.2 Commissioning after break in operation

• Set up the machine for 24 h at 25°C if it is not frost-free. Have an authorised service technician commission the machine again.
• Have reverse osmosis (GiO MODULE) (option) disinfected in the case of downtimes of more than 6 months.
• Open the on-site shut-off valve and switch on the main switch.
• Put machine into operation, see page 24.

Dismantling and disposal

In addition to valuable raw materials and recyclable materials, the packaging and the old appliance may also contain substances that are harmful to health and the environment
and were required for the function and safety of the old appliance.

11.1 Disposal of packaging materials
All the packaging materials are recyclable. The following materials are used:
– Square timber frame
– Plastic sheeting (PE film)
– Cardboard packaging (for protecting edges)
– Packaging strap (steel strip)
– Packaging strap (plastic (PP))

Note
The square timber frame consists of untreated raw pine / spruce. In order to guard against pests, country-specific import regulations may also stipulate the use of treated wood.

11.2 Dismantling and disposal of the old device

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.
• Where appropriate, rinse machine components, containers, dosing units and hoses with fresh water to remove chemical residues. Wear suitable clothes (gloves, safety glasses) for this.

**** The device is marked with this symbol. Please observe the local regulations for proper disposal of your old device.
The components should be separated by material for recycling.

Abbreviations

MEIKO Maschinenbau GmbH & Co. KG
Englerstraße 3
77652 Offenburg
Germany
www.meiko-global.com
info@meiko-global.com

Design and construction subject to change without prior notice!
9760441 / Valid from: 2018-02 / Update: 2023-03

References

• Spülen, Reinigen, Desinfizieren und Speiserestesammlung - MEIKO
• Commercial dishwashers, bedpan washers - MEIKO
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