Operating instructions - MEIKO Maschinenbau GmbH &

Professional warewashing technology
Operating instructions
UPster U 400 / U 500 / U 500S
Glass and dishwashing machine
Translation of the "Original operating instructions"
EN
9735077 / Valid from: 2015-09 / Update: 2017-12-20
Operating Instructions UPster U 400 / U 500 / U 500S
Contents
1
1.1
1.2
1.3
1.4
2
3
4
5
5.1
5.2
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
7
7.1
8
8.1
8.2
8.3
8.4
8.5
9
10
10.1
10.2
10.3
10.4
10.5
10.6
11
11.1
11.2
11.3
11.4
12
12.1
12.2
12.3
12.4
13
14
15
16
9735077
Introduction and general instructions
Storage
Name and address of manufacturer
Authorisations for Service Partners' Service technicians
Designation of machine type
Explanation of the safety symbols used
Intended use
EC Declaration of Conformity
General safety instructions
Operator’s duty of care
Basic safety measures
Delivery, transport, installation and assembly
Delivery
Transport, installation and assembly
Operating conditions
Requirements for the electrical connection
Requirements for the fresh water connection
Requirements for the waste water connection
Emergency-off
Chemicals for the operating the machine
Instructions for disposal of packing material
Settings for initial commissioning by the service engineer
Commissioning
Washing using the washing machine
Operating panel
Preparation for washing and rinsing
Manual dosing of detergent
Automatic dosing
Operation during washing and rinsing cycle
Shutting down the machine
Maintenance and care
Care, general
Refill detergent
Refilling with rinse aid
Cleaning
Care of stainless steel surfaces
De-scaling
Appliance with built-in water softening device EW10 (only U 500S)
General
Adjustment of water hardness
Capacity of the built-in water softening device
Regeneration
Basic information about the warewashing machine
General description of the warewashing machine
Noise emission
Electrical and hydraulic equipment data
Dimensions, technical data, installation instructions
Non-ionising radiation
Help yourself in case of faults
Staff training
Authorised user of this documentation
Design and construction subject to change without prior notice
Page 2 of 44
4
5
5
5
5
6
6
7
8
8
9
11
11
11
12
12
13
13
13
14
14
14
14
14
15
16
16
16
16
17
18
18
18
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19
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20
20
20
20
20
21
21
22
23
23
23
23
24
25
25
Operating Instructions UPster U 400 / U 500 / U 500S
17
17.1
17.2
17.3
17.4
17.5
17.6
18
18.1
18.2
19
19.1
19.2
19.3
20
21
9735077
Settings / modifications / on-site adaptation
Using the keyboard for programming
Code input
Service level
Parameter list
Assignment list View inputs / control outputs
Rinse programmes parameter update: 01.06.2012
Operating errors
Information reporting and troubleshooting
Error messages and troubleshooting
Maintenance, servicing
Basic safety measures during normal operation
Dosing equipment
Maintenance plan
Environmentally acceptable measures, disposal of the installation
Documentation
Design and construction subject to change without prior notice
Page 3 of 44
26
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26
27
32
35
36
37
37
38
40
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40
41
42
42
Operating Instructions UPster U 400 / U 500 / U 500S
1
Introduction and general instructions
Dear Customer,
We are delighted about the confidence you have shown in our products.
It is very important to us that you should obtain a great deal of pleasure and usefulness
from MEIKO products and that they should make your work easier.
If you follow the instructions in this document carefully, your washing machine will always
give you total satisfaction and will have a long service life.
After assembly at our factory, this machine was put through a thorough inspection. This
helps us make sure, and gives you the guarantee that you always receive a mature product.
We would therefore ask you to read these operating instructions carefully before
using the installation. Any further related operating instructions for accessories and
incorporated third-party products must be strictly observed!
These operating instructions are designed to familiarise the owner/operator of this system
with its installation, modes of operation, use, safety instructions and servicing.
This information will help you to get to know the installation fully and to use it properly. It
will also enable you to avoid repairs and the concomitant loss of productive work.
In the event of any damage caused by non-observance of these operating instructions, any
guarantee claims are invalid. We accept no liability for any additional damage caused as a
result.
MEIKO operates a policy of continuous development on all its appliances.
As a result of this, please understand that we thus reserve the right to make changes to
the scope of supply concerning the design, equipment and technical features at any time.
No claims may therefore be based on the details, the images or the descriptions contained
in these operating instructions.
Should you require any further information, or in case any particular problems not dealt
with in great detail in the operating instructions should arise, you may contact the relevant
MEIKO branch to obtain the information you require.
Further, we draw your attention to the fact that the content of these instructions does not
form part of a former or existing agreement, promise or legal relationship and does not
modify such a point.
All MEIKO’s obligations arise from the relevant purchase contract which also contains the
entire and only valid guarantee provisions.
The operating instructions must exist in the local language for each EU country. If this is
not the case, the washing machine must not be commissioned.
The original operating instructions in German and all operating instructions in all languages
for EU countries can be downloaded from the following address: https://partnernet.meiko.de
You receive all this technical documentation free of charge.Any additional copies required
are available for a nominal fee.
These contractual guarantee rules shall be neither extended nor restricted as a result of
any explanations given in the instructions.
MEIKO wishes you much pleasure and success!
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Design and construction subject to change without prior notice
Page 4 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
1.1
Storage
Always store the operating instructions close to the system!
The operating instructions must always be kept within easy reach!
1.2
Name and address of manufacturer
In case of further questions, technical problems, etc. contact directly:
MEIKO Maschinenbau GmbH & Co. KG
Englerstr. 3
D - 77652 OFFENBURG
Phone + 49 (0)781 / 203-0
http://www.meiko.de
info@meiko.de
or:
Name and address of the MEIKO branch, manufacturer’s agent or dealer.
(Enter company’s stamp or address)
1.3
Authorisations for Service Partners' Service technicians
MEIKO exclusively authorises authorised Service Partners for commissioning, inductions,
repairs, maintenance, assembly and installation of the corresponding product groups within
MEIKO devices.
1.4
Designation of machine type
Please provide the following information on any query and/or when ordering spare parts:
Model:
SN:
This information can be found on the type plate.
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Design and construction subject to change without prior notice
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Operating Instructions UPster U 400 / U 500 / U 500S
2
Explanation of the safety symbols used
The following safety symbols will appear throughout these operating instructions. These
symbols are designed to draw the reader's attention to the text next to the safety instructions.
CAUTION!
DANGER!
This symbol warns that there is danger to human life and health.
This symbol warns that there is danger to the installation, to material or to the environment.
This symbol denotes information that helps you to understand the
installation’s operation.
Warning against dangerous electric voltage!
Warning against hand injuries!
No splashing water: prohibits the use of a pressure cleaner.
Danger of explosion: indicates a potential explosion hazard.
Non-potable water: The water is not for drinking. Health can be
endangered by drinking.
Danger of burning: indicates possible hazard due to hot surfaces or media.
3
Intended use
The glass and dishwashing machine has exclusively been designed for the washing of
dishes, cutlery and glasses.
DANGER!
The warewashing machine must only be deployed and operated only for its intended
use. Other uses are prohibited.
The items to be washed must be suitable for washing in warewashing machines.
This warewashing machine is intended solely for use in a commercial environment.
9735077
Design and construction subject to change without prior notice
Page 6 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
4
EC Declaration of Conformity
Muster / Example / Exemple / Esempio / Ejemplo / Voorbeeld / Mönster
EG-/EU-Konformitätserklärung
2017-11-07 (Update)
EC-/EU-Declaration of Conformity / CE-/UE-Déclaration de conformité / CE-/UE-Dichiarazione di conformità / CE-/UE-Declaración de conformidad /
EG-/EU-conformiteitsverklaring / EG-/EU-försäkran om överensstämmelse
Firma
MEIKO Maschinenbau GmbH & Co. KG
Company / Société / Ditta / Empresa / Fabrikant / Företag
Englerstraße 3 - 77652 Offenburg - Germany
Kontakt
Internet:
E-mail:
Telefon:
Contact / Contact / Contatto / Contacto / Contact / Kontakt
www.meiko.de
info@meiko.de
+49(0)781/203-0
Seriennummer
Serial number / numéro de série / numero di serie / número de serie / volgnummer / serienummer
Spülmaschine Typ
Dishwasher model / Lave-vaiselle modèle / Lavastoviglie modello / Lavavajillas modelo / Vaatwasmachine model / Diskmaskin modell
UPster U 400
UPster U 500
UPster U 500S
Konformitätserklärung
Declaration of Conformity / Déclaration de conformité / Dichiarazione di conformità / Declaración de conformidad / Conformitetsverklaring /
Försäkran om överensstämmelse
Hiermit bescheinigen wir in alleiniger Verantwortung die Konformität des Erzeugnisses mit den grundlegenden Anforderungen der folgenden EG-Richtlinien, harmonisierten Normen, nationalen Normen.
We hereby declare at our sole responsibility that the product conforms to the essential requirements of the following EC Directives, harmonized standards, national standards.
Par la présente nous certifions sous notre seule responsabilité la conformité du produit avec les exigences fondamentales des directives CE,
normes harmonisées et normes nationales suivantes.
Con la presente dichiariamo sotto la nostra responsabilità la conformità del prodotto con i regolamenti basilari delle seguenti direttive CE, normative armonizzate e normative nazionali.
Por la presente declaramos bajo nuestra sola responsabilidad que nuestros productos están en conformidad con las exigencias básicas de las siguientes
directivas de la CE, normas homologadas y normas nacionales.
Hiermee verklaren wij onder geheel eigen verantwoordelijkheid de conformiteit van het product met de fundamentele en gestelde eisen volgens
EG-richtlijnen, geharmoniseerde normen en nationale normen.
Vi intygar härmed på eget ansvar att produkten överensstämmer med de väsentliga kraven i nedan angivna EG-direktiv, harmoniserade standarder och nationella standarder.
Richtlinie / Directive / Directive / Direttiva / Directiva / Richtlijn / Direktiv
2006/42/EG / 2014/30/EU
Dokumentationsbevollmächtigter
Viktor Maier
Responsible for documentation / Responsable de la documentation / Responsabile della documentazione/ Responsable de la documentación / Voor deze documentatie verantwoordelijk /
Ansvarig för dokumentation
MEIKO Maschinenbau GmbH & Co. KG
Englerstr. 3 - 77652 Offenburg - Germany
Offenburg,
MEIKO Maschinenbau GmbH & Co. KG
ppa.
(per procura)
Dr. Thomas Peukert
Technischer Leiter
Chief Technology Officer / Directeur de la technologie / Direttore tecnico /
Director técnico / Technisch directeur / Teknisk direktör
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Design and construction subject to change without prior notice
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Operating Instructions UPster U 400 / U 500 / U 500S
5
5.1
CAUTION!
General safety instructions
Operator’s duty of care
This warewashing machine has been constructed and designed based on a risk assessment and careful selection of the applicable harmonised standards, as well as additional
technical specifications. It is therefore state of the art and guaranteed to provide maximum
safety.
Safety can only be guaranteed during operation if all necessary measures are taken. The
operator of the installation has an obligation of care to ensure that these measures are
planned for, and also to check that they are correctly implemented.
Measures to ensure the safe machine operation:
The operator must ensure in particular that ...
CAUTION!
... the washing machine is only used in accordance with the regulations
in case of other use or operation, damage or risks may arise for which we accept no liability (cf. chapter "Intended use").
… in order to guarantee functionality and safety, use only original parts supplied by the
manufacturer when needed.
Any potential claims by the user shall be rendered void if the system was altered using
parts other than original spare parts.
CAUTION!
CAUTION!
CAUTION!
... only appropriately qualified and authorised employees may use, maintain, and repair
the machine.
… staff is regularly trained in all questions relating to occupational safety and environmental protection and, in particular, that staff is familiar with the Operating Instructions
as well as with the safety instructions they provide.
... the washing machine is only operated in a perfect, operationally efficient condition
and, in particular, that the safety systems and switch elements are checked on a regular
basis for their operational efficiency.
... machines accessible only from behind may be operated only with rear panel cladding.
CAUTION!
CAUTION!
... the required personal protective equipment is made available to and used by maintenance and repair personnel.
CAUTION!
... a functional test on all safety systems of the machine / installation is carried out during every regular maintenance.
CAUTION!
... the operating instructions are always in a legible state, complete, and available at the
machine's location of use.
CAUTION!
... any necessary regular checks on supply parts are carried out. More detailed information, if required, can be found in the relevant operating instructions.
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Operating Instructions UPster U 400 / U 500 / U 500S
CAUTION!
CAUTION!
After installation, commissioning and handing over of the washing machine to the customer/operator, no modifications may be made (e.g., electrical system or location).
Modifications to the warewashing machine, and in particular technical modifications carried out without the manufacturer’s written authorization, or any modifications carried
out by unauthorized persons, will lead to the complete loss of any guarantee claims and
will invalidate any liability for the product.
... equipment for optimising energy consumption must not be used to reduce essential
operating temperatures, as set out in DIN 10511, 10512 and 10522. If you, the client,
install equipment for optimising energy consumption, any possible reduction in the quality of the wash and hygiene is your responsibility.
5.2
Basic safety measures
Danger can arise from the improper use of the machine or if it is used for purposes for
which it was not intended.
CAUTION!
Parts carrying electric current as well as moving or rotating parts can cause·dangers to
the user’s life and limb and material damage.
CAUTION!
The warewashing machine may only be operated by adequately qualified staff who have
been trained by the operating company and who have been trained about the hazard
and safety instructions.
Qualified staff, as defined by the Operating Instructions, are persons:
 over 14 years of age
 who have read and who observe the safety instructions,
 who have read and who observe the operating instructions (or the part applicable to
the work to be carried out).
The machine operates with hot water. The machine operates with hot water (Temperature of wash water = 58-60 °C, by Cleaning and disinfection machine must be 74 °C).
Avoid all contact with the rinse water Danger of scalding! The washed items as well as
the components in contact with the wash water have the same temperature. Please observe appropriate protective measures. Allow machine components and washware to
cool down before touching.
Observe all the instructions posted on the machine.
Warning !
When electrical equipment is in operation, it is inevitable that some parts of this equipment are live with dangerous current.
Before opening the machine or electrical equipment, it is essential to de-energise the
entire washing machine via the connected mains disconnecting device and secure it
from switching back on using appropriate measures.
Work and troubleshooting on electrical parts of the machine must be performed by specialists only. Observe accident prevention regulations.
The operator must not restart the machine until all cover panels have been put back in
place.
The warewashing machine may not be sprayed with a water hose or high-pressure
cleaner.
The warewashing machine may only be operated under the supervision of trained personnel.
CAUTION!
The water in the wash-up area is non-potable and must not be used for food preparation!
Do not use the washing machine if you are unsure about system operation.
CAUTION!
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Design and construction subject to change without prior notice
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Operating Instructions UPster U 400 / U 500 / U 500S
The appliance must not be used to transfer waste water from other sources into the drain.
CAUTION!
CAUTION!
CAUTION!
Steel scrub pads are not to be used for the pre-scouring nor for cleaning the items to be
washed.
Do not wash any metal items in the warewashing machine which are not made of stainless steel.
The operator must reliably prevent metal parts (especially iron, tinplate, copper) entering the machine.
The appliance must not be used to transfer waste water from other sources into the
drain (Warning: risk of corrosion and blockage).
Only use suitable products for cleaning the stainless steel surfaces. They must not attack
the material, form any deposits, or cause any discolouration.
The door must be closed!
There must be no body parts between dishwashing machine door and dishwashing machine tank as the door is being closed.
Open the door very carefully during the programme cycle, as otherwise wash water could
splash out.
The tank heating element may still be hot after the tank has been emptied. As a result,
there is a risk of burns or scalding when cleaning the machine manually!
Only use detergents and rinse aids suitable for commercial dishwashing machines.
CAUTION!
Please contact the manufacturers of these products für information.
Detergent and rinse aid may contain hazardous substances.
Observe the manufacturers' hazard warnings on the original containers and safety data
sheets.
Wear suitable work clothing
Loose clothing and jewellery increases the risk of being caught on protruding parts.
CAUTION!

Wear tight-fitting work clothing. Wear trousers down or an apron.

Do not wear rings, necklaces or other pieces of jewellery.

Wear protective gloves and goggles.
Wear secure, suitable shoes. (We recommend wearing safety shoes with steel toe caps)
CAUTION!
CAUTION!
9735077
On completing operation, switch off the warewashing machine completely using the local
circuit breaker.
The accompanying Operating Instructions must be observed for accessory devices, e.g.
water treatment installations.
WE DO NOT ACCEPT ANY LIABILITY FOR
DAMAGE OR INJURY ARISING FROM FAILURE
TO OBSERVE AND ABIDE BY THESE SAFETY
INSTRUCTIONS!!!!
Design and construction subject to change without prior notice
Page 10 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
5.2.1 Working on the electrical equipment
Any repair work and troubleshooting on the machine's electrical equipment must be carried out by a qualified electrician!
CAUTION!
Check the electrical equipment regularly! Tighten any loose connections! Replace any
damaged leads/cables immediately!
6
6.1
Delivery, transport, installation and assembly
Delivery
Check that the delivery is complete immediately after receiving it by comparing it to
MEIKO’s contract confirmation and/or the delivery note.
If necessary, complain about any missing parts immediately to the shipping company and
notify MEIKO.
Check the entire scope of delivery for any damage that may have occurred during shipping.
In the event of any transport damage please inform MEIKO immediately in writing, and
also send a photo of the damaged parts to MEIKO.
Damaged appliances must not be commissioned.
CAUTION!
6.2
CAUTION!
Transport, installation and assembly
In order to avoid damage or life-threatening injuries during shipping of the installation, the
following points must be observed:
 Transport works must only be performed only by qualified persons observing the
safety instructions.
 Observe transport instructions on the packing.
 Handle with care.
 Unpack the machine.
For safe transport, the machine parts are supported by a special square-timber frame.
The warewashing machine must only be transported on the supplied wooden frame. The
packing is specifically designed to allow the appliances to be moved safely and securely
using a pallet truck.
The enclosed dimensional drawing states the connected load and consumption specifications of the warewashing machine.
Small quantities of steam may escape through the machine's door. For this reason,
furniture and equipment situated near the door must be protected.
CAUTION!
On request, an engineer from your local MEIKO representative is available to install
the machine. An engineer from your local MEIKO Service Centre can install the appliance at the correct point and connect the tables - upon request.
Dishwashing machine installation steps:
 The complete unit must be levelled in both directions using a water level.
 Compensate for an uneven floor by adjusting the feet.
 Table joints must be sealed with detergent-resistant sealing compound (e.g. silicone).
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Design and construction subject to change without prior notice
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Operating Instructions UPster U 400 / U 500 / U 500S
6.3
Operating conditions
It is assumed that the planning of the system, as well as installation, setting in operation
and maintenance works are executed by sufficiently instructed staff and that these works
are checked by responsible specialists. The details on the machine's type plate must
match those of the standard drawing and the local connection conditions.
Conditions to be provided by the customer:
 Frost free storage and installation area
 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
 Anti-slip floor coverings should be provided around the dish-washing appliance.
6.3.1 Requirements to the installation area
 Ensure that the storage and installation area is permanently frost free.
The machine is only frost-resistant in the state it is delivered or when provided with
special features (option: frost drainage).
If the machine is installed in an area where the surrounding temperatures are below 0°
C, water freezing inside the machine damage the internal water circuit components
(pump, solenoid valve, boiler, etc.).
6.4
Requirements for the electrical connection
Work on the electrical part of the machines may only be undertaken by specialist personnel.
CAUTION!
The customer must guarantee the following points relating to the connection:
 The correct voltage and type of current must be available
 Safeguard the power supply cable according to regulations and provide it with a
power disconnection device in the fixed electrical installation.
 The appliance must be connected to a potential equalisation system!
 If an unearthed neutral (N) is used with alternating current, the power disconnection
device must have 4-poles (with alternating current 2-poles).
 For connection to three-phase current a 5-pole terminal strip (L1, L2, L3, N, PE)
must be used.
 Electricity supply without neutral conductor (N): when connecting to three-phase
current, use a 4-pole clamping strip (L1, L2, L3, PE).
 Conductor colours: live conductor L1 = black/1, L2 = brown/2, L3 = grey/3, neutral
conductor N = blue/4, ground wire conductor PE = green-yellow.
Current applicable standards and requirements of local utility companies are to be adhered to with regard to protective measures and connection of the potential compensation system.
The products are intended for permanent connection to the on-site power supply and
have been tested for the market accordingly. Any other form of electrical connection is
to be established by a licensed electrician.
Do not connect any additional consumers to the fuse protecting the machine.
 Re-tighten all terminal fixing screws before the setting in operation.
The wiring diagram is behind the warewashing machine's front panel. The enclosed
wiring diagram must remain in the appliance.
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Operating Instructions UPster U 400 / U 500 / U 500S
Note to the customer
Warewashing machines, bedpan washers and systems are provided for the permanent
connection to the electrical power supply and the connection to the on-site potential
equalisation system and are accordingly equipped with a connection option.
The operator can decide at his/her own discretion and under his/her own responsibility to
alternatively implement personal protection in collaboration with a licensed electrician
company using:
 Fault current protection switch sensitive to universal current with max. 30mA EN
62423
or
 Automatic switching off of the supply when the protective earth conductor for the
consistency is lost (EN 60204-1 Chap. 8.2.8.c)
6.5
Requirements for the fresh water connection
Each appliance carries the DVGW test symbol and does not require an extra safety
valve in the water feed.
 The fresh water connection must be effected as per EN 1717 or local regulations.
The minimum flow pressure of the clean water supply upstream of the solenoid
valve must be 2.5 bar.
CAUTION!
The minimum flow pressure of the clean water supply upstream of the solenoid
valve must be 2.5 bar with the booster pump option.
The maximum pressure must not exceed 5 bar.
 If the minimum flow pressure is not reached, increase the flow pressure with a
booster pump; if the maximum pressure is exceeded, limit it with a pressure reducer.
 Suitable protective measures must be taken to ensure that no iron particles can enter
the appliance via the mains water supply. Similarly, precautions must be taken to
prevent the entry of other metal particles, for example copper turnings. Corresponding instructions are contained in the installation drawing. Appropriate
measures must be taken.
 A dirt trap must be fitted into the fresh water supply to protect the solenoid valve.
Special requirements for Australia
Installation in accordance with AS/NZS 3500
6.6
Requirements for the waste water connection
 Build an odour trap into the waste water connection if this is not already built-in
(further information about this is in the Installation drawing / Technical Sheet).
 The drain hose must be connected to the waste water pipe in the building.
 A grease trap may be needed, depending on the warewashing machine application.
6.7

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Emergency-off
Switch the machine off completely via the on-site power disconnection device.
Design and construction subject to change without prior notice
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Operating Instructions UPster U 400 / U 500 / U 500S
6.8
CAUTION!
Chemicals for the operating the machine
Only alkali detergents and acid rinse agents suitable for use in commercial warewashing machine may be used. Relevant information is provided by the manufacturers of these products.
MEIKO recommends brand cleaning products from leading manufacturers. - cleaning and hygiene products
are an excellent choice. Using unsuitable products can considerably reduce the service life of the dosing units. Observe the manufacturers' dosing instructions.
Detergents and rinse aids can present a health hazard if they are not correctly used.
Observe the manufacturers' indication on the original containers and safety data
sheets.
"Items for rinsing are tribologically influenced in particular by chemicals and increased temperatures during the process, as well as mechanical stresses caused by
handling and transporting."
If a descaling agent is used, please strictly observe the manufacturer’s handling and
safety instructions. After having used such an agent, the product must be completely
removed from the machine, as even small residues are sufficient to destroy plastic
parts and packing materials.
Chemical product settings
The correct settings for the quantity of detergent and rinse aid depend on the product
used. The relevant chemical product supplier can install the correct setting.
6.9
Instructions for disposal of packing material
 The four-sided wooden frame consists of untreated, raw wood.
Special country-specific import regulations may also stipulate the use of wood which
has been treated against pests.
 The plastic sheeting (PE sheeting) can be recycled.
 The cardboard packaging material used to protect the edges can also be recycled.
 The steel strap from the packaging can be recycled as steel scrap.
 The plastic tensioning strap (PP) can be recycled.
7
7.1
CAUTION!
Settings for initial commissioning by the service engineer
Commissioning
To avoid damages or dangerous injuries during the setting in operation of the washing
machine, please observe the following points:
Perform any required initial checks on supplied parts. More detailed information, if required,
can be found in the relevant operating instructions.
 The warewashing machine may only be commissioned by suitably qualified persons observing the safety instructions.
 Before the first start, check if all tools and foreign parts are removed out of the
machine.
 Check any escaped fluids have been removed.
 Activate all the safety systems and door switches before commissioning
 Check that all screw connections are tight.
 Please also read the chapter “General safety instructions".
 Commissioning and training will be handled and provided by MEIKO-trained
service engineers. The operator must not use the installation before completing
training.
8
Washing using the washing machine
The appliance must not be used without a thorough knowledge of the Operating Instructions. Incorrect operation may result in personal injury or material damage.
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Design and construction subject to change without prior notice
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Operating Instructions UPster U 400 / U 500 / U 500S
8.1
Operating panel
Option:
Incorporated softener
Program selection buttons /
appliance is switched on
Program start key
Program is running
Temperature display tank/boiler,
Fault display - information display - code display
Figure 1; Operating panel
Key/display
Meaning
Short program – Wash programme I
Normal program
+
– Wash program II
Intensive program – Wash program III
Wash temperature
Final rinse temperature
Regeneration necessary (option)
Regeneration (option)
Programme Start
Drain tank
Self-cleaning programme
Switch on/off appliance /
Cycle interruption
Table 1; Program key function / items to be washed
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Page 15 of 44
On/Off button
Operating Instructions UPster U 400 / U 500 / U 500S
8.2
Preparation for washing and rinsing
The following preparatory work must be carried out at every startup
 Open the door.
 Insert the eco-filter, stand pipe.
 Close the door.
Danger of crushing.
Close the door with both hands.

Press the on/off button to switch on the machine.
During the filling and heating phase, the light above the preselection key will flash.
When the light remains constantly lit, the machine is ready for operation.
The time required to reach operation readiness depends on supply water temperature
and the installed boiler or tank heating capacity.
If using a cold water connection, this
process takes approx.:
8.3
20 minutes
U 400
25 minutes
U 500
Manual dosing of detergent
If there is no detergent dosing pump, the detergent must be added manually to the washing water. To obtain a concentration of 2 g/l, an initial amount of 40 g and a later addition
of 30 g after each of 5 cycles should be added.
If the detergent is in powder form, the powder should be scattered evenly on the water in
the tank and dissolved after the tank has been filled. This will prevent discolouration of
stainless steel parts.
8.4
CAUTION!
Automatic dosing
The required detergent (detergent dosing pump: option) and rinse aid is transported out
of the containers into the tank, resp. boiler, via electronically controlled dosing units. The
dosing is effected automatically acc. to the requirements arising during the wash process.
Use of unsuitable products will significantly impact the service life of the dosing equipment.
We therefore recommend that detergents should have a pH value greater than 7 and
that rinse agents should have a pH value between 7 and 2.
8.5
Operation during washing and rinsing cycle
The following fundamental principles must be observed when placing the items to be
washed in the baskets:
 All hollow containers must always be loaded upside down. Otherwise the water will be
trapped inside and they will not dry to a brilliant finish.
 Plates, trays and big plates should always stand at a slight angle in the basket. The
inside faces pointing upwards.
 When using cutlery baskets, ensure that cutlery is always inserted handle down.
 Load the cutlery baskets with a mixture of spoons, knives and forks, as identical items
of cutlery can be too close together.
 Do not overload the cutlery baskets.
 Do not stack the dishes in the wash basket directly on top of each other. As the wash
water could not strike the items directly and unnecessarily long wash times would have
to be selected. Short wash times with baskets which are not overloaded are much more
economical.
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Operating Instructions UPster U 400 / U 500 / U 500S
8.5.1 Start the wash cycle

Program start key



Pre-wash the dishware (major food residues, serviettes, tooth picks, etc.) and
place in the basket.
Place the basket in the appliance, ensuring that it is correctly centred.
Close the door.
Press the program start key.
The appliance cleanes and rinses automatically and switches off the wash program after
completion. The program cycle is indicated by a light on the program start key.
The wash time can differ from the set program time if the boiler heating capacity is not
sufficient for heating up the fresh water to the pre-set boiler temperature during the
program time. In this case, the automatic wash time extension is activated.
8.5.2 Remove the cleaned items
 When the light goes out, open the door and remove the basket.
Allow the washware to cool down before emptying, if necessary. We recommend that
you wear protective gloves.
9
Shutting down the machine

Press the On/Off button. The machine is switched off when all the lights are out

Remove the stand pipe.

Remove and clean the eco-filter
Machines without built-in drain pump:

After the water has been drained from the tank, the tank is sprayed with clean hot
water by pressing the Program Start button. The door must remain closed.
Machines with built-in drain pump:
9735077

Press the program start key to drain the tank.

The tank interior is sprayed with clean hot water after the tank water has been
drained. The door must remain closed. The waste water pump switches off automatically.
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Operating Instructions UPster U 400 / U 500 / U 500S
10
Maintenance and care
10.1 Care, general
The appliance has been designed to minimise the need for cleaning, care and maintenance.
However, for reliable, safe and long-term function of the machine, and in the interest
of hygiene and cleanliness, correct care and maintenance is necessary.
10.2 Refill detergent
There are two different types of detergent containers:
Incorporated container
The storage container is translucent white in colour and is located in the lower part of the
stationary warewashing machine. The lid can be opened after the container has been removed from its position.
 Re-fill the container marked ”detergent“ if necessary.
CAUTION!
External storage container
The container is located in the immediate vicinity of the machine.
 Check the filling level of the container and if necessary, replace it with a full one.
Only non-foaming alkali detergents (pH > 7) suitable for commercial glass and dishwashing machine may be used.
Detergent dosing units must be checked to see if they are functioning properly if
there is reason to believe that they are malfunctioning. Visual inspection!
10.3 Refilling with rinse aid
CAUTION!
9735077
There are two different types of rinse aid containers:
Incorporated container
The storage container is translucent blue in colour and is located in the lower part of the
stationary warewashing machine. The lid can be opened after the container has been removed from its position.
 Re-fill the container marked ”rinse-aid“ if necessary.
External storage container
The container is located in the immediate vicinity of the machine.
 Check the level and, if necessary, replace the container by a full one.
Only non-foaming acid rinse aid (pH < 7) suitable for commercial glass and dishwashing
machine may be used.
If you suspect a malfunction, check the final rinse dosing unit. Visual inspection!
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Operating Instructions UPster U 400 / U 500 / U 500S
10.4
Cleaning
After emptying the tank, proceed as follows:
 Do not use a foaming detergent for dish-washing by hand for pre-cleaning close to the
warewashing machine. Foam can cause malfunctions in the warewashing machine and
a poor wash.
 Food residues sticking to the tank, tank heating element and sieves must be removed
with a brush.
 Disassemble the wash arms and rinse them with flowing water.
 Wash nozzles must be cleaned daily.
 The cleanliness of final rinse nozzles must be checked weekly and if necessary clean
under running water.
The inserts for the final rinse nozzles must be inserted with the prongs facing the water
flow
10.4.1 Safety instructions for cleaning
The tank heating element may still be hot after the tank has been emptied. As a result,
there is a risk of burns or scalding when cleaning the machine manually!
CAUTION!
CAUTION!
Machine, switch cabinet and other electrical components may not be sprayed with a water hose or high-pressure cleaner.
10.5
Care of stainless steel surfaces
We recommend cleaning the stainless steel surfaces only when needed with cleaner and
care products suitable for stainless steel.
Lightly soiled parts can be wiped with a (possibly damp) cloth or sponge.
Be sure to wipe dry after cleaning to avoid traces of scale. Use demineralised water if
possible.
Do not use aggressive cleaning or scouring agents.
The care products must not attack the stainless steel, form deposits, or cause discoloration.
Never use cleaning agents that contain hydrochloric acid or bleaches based on chlorine.
Never use cleaning equipment that you have used previously by non-stainless steel to
avoid external corrosion.
Aggressive external influences due to cleaning and care products that evaporate in the
vicinity of the dishwashing machine, or caused by direct application, can lead to machine
damage and put the material at risk (e.g., aggressive tile cleaners).
Caution!
Observe the manufacturers' hazard warnings on the original containers and safety data
sheets.
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Operating Instructions UPster U 400 / U 500 / U 500S
10.6 De-scaling
If the machine was operated with hard water, the boiler and wash tank could have lime
scale deposits. De-scaling of the tank interior, boiler housing, tank heating, boiler heating
and wash and final rinse system then becomes necessary.
CAUTION!
For de-scaling the appliance use only products suitable for industrial dishwashers.
Please observe the product manufacturers' instructions.
After de-scaling the appliance:
 Completely flush the de-scaling agent out of the appliance. 1 or 2 rinse cycles with fresh
water are necessary to achieve this.
Even small residues of de-scaling agents can be sufficient to destroy plastic parts and
sealing materials!
If the machine is heavily scaled, you should ask a service engineer from your local
MEIKO representative to de-scale the boiler.
11
Appliance with built-in water softening device EW10
(only U 500S)
11.1 General
If the red lamp lights up, the capacity of the water softener has been almost exhausted. About a further 10 program cycles are possible before the water softener is
completely exhausted. It is therefore possible to delay the necessary regeneration
until a time when the machine is not in use.
CAUTION!
It is important to note that if the machine continues to be used when the water softener is exhausted, capacity can be reduced and the machine may even become unusable.
11.2 Adjustment of water hardness
The water softening device is pre-set to 30°Gh in the factory. When the service engineer
installs or commissions the appliance he should adjust this value depending on the actual
water hardness. Should there be any further changes in the water hardness, this parameter must be adjusted accordingly as set out in the Short Programming Instructions.
11.3 Capacity of the built-in water softening device
2000
1800
1600
Kapazität in Liter
1400
1200
1000
800
600
400
200
0
5
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10
15
20
Wasserhärte in °dH
25
30
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Operating Instructions UPster U 400 / U 500 / U 500S
11.4 Regeneration
Switch off the machine.
Remove the stand-pipe, empty the tank.
Fill the salt solution container with 0.8 kg regenerating salt. A funnel can be used for this
if necessary.
By regenerating salt we mean here sodium chloride with a grain size of 0.3-1 mm.
CAUTION!
The seal and the thread of the salt solution container must be cleaned before closing
the container. Carefully lock the salt solution container cover. The penetration of wash
water can reduce the capacity of the built-in water softening device.

Press the regeneration button.

The regeneration process starts automatically and lasts for about 13 minutes.
The machine cannot be used during this time. The door must remain closed.
The regeneration process is indicated by a yellow light. The machine can be filled again
when the light has gone out.
Even if the red light has not come on to indicate that the water softener is exhausted,
the regeneration process can be started by pressing the regeneration button for at least
3 seconds.
CAUTION!
We recommend that you fill the machine immediately after the regeneration process in
order to dissolve and remove from the wash tank any salt particles that have been
spilled.
If the salt remains in the wash tank for a lengt hyperiod, this can result in corrosion and
even pitting corrosion in the bottom of the tank.
12
Basic information about the warewashing machine
The dish and glass-washing appliance is manufactured according to the latest state of
the art technology. Operation is safe.
Dangers can arise from this dish and glasswashingmachine, if it is not operated correctly, operated by untrained staff, or not used for its intended purpose.
CAUTION!
Liability
We accept no responsibility for damage of the appliance and other objects caused by operating faults, resp. non-observance of the operating instructions. Modifications to the machine - in particular technical modifications internally - carried out without the manufacturer’s written authorization, or any modifications carried out by unauthorized persons, will
lead to the complete loss of any guarantee claims and will invalidate any liability for the
product.
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Operating Instructions UPster U 400 / U 500 / U 500S
12.1 General description of the warewashing machine
12.1.1 Wash principle
The appliance has one wash and one final rinse cycle.
The temperature regulator keeps the wash temperature. A centrifugal pump circulates the
water out of the cleaning tank into the clean nozzles. The water jets reach the items to be
cleaned out of differing directions. Therefore an even cleaning result can be guaranteed.
The cleaning cycle is followed by the fresh water final rinse. The items are rinsed via a
separate nozzle system with hot fresh water 80 - 83° C. Thus heating up the items for the
following drying process. At the same time the final rinse water serves for the regeneration of the wash water, the level of soil of the wash water thus being reduced.
12.1.2 Disinfection machine with Thermolabel control
(U 500 / U 500S)
Thermolabel = measuring tape that changes colour after 4 seconds at 71 °C and shows
the required hygiene value.
The tank water is heated up to 71 °C during washing. After a brief stop time the dripping
pause and the final rinsing starts as long as the washing time set in the programme has
been reached or exceeded.
Both method makes it possible to achieve disinfection levels higher than the standard
(e.g. in hospitals).
The tank temperature falls when the programme begins, depending on the washware.
The time needed to reach the set disinfection parameters can exceed the set program
time.
High washing temperatures and long retention times in the wash tank can lead to glass
corrosion and premature peeling of the decor.
CAUTION!
12.1.3 Detergent dosing
The detergent dosing unit (option) is designed for the automatic adding of liquid, alkaline
detergent into the wash water.
The detergent is transported out of the container into the clean tank by means of a hose
line. The dosing equipment is self-priming. Dosing occurs during each filling cycle and at
the beginning of each program cycle via timer control.
Normally, a dosing of approx. 2 ml of detergent per litre of tank water is the correct
concentration. This can be increased/reduced acc. to the water quality, items to be
washed and degree of soiling to 5 ml/l or to1 ml/l.
12.1.4 Rinse aid dosing
The rinse aid dosing unit is designed to automatically add liquid final rinse aid into the
fresh water.
The rinse aid is pumped out of the storage container into the fresh water supply line
through a hose. The dosing equipment is self-priming. Dosing takes place during each
filling cycle.
The correct dosing results in a smooth, even water film.
In case of overdosing, there are bubble and stripe formations - reduce dosing.
In case of under-dosing, water drops remain on the washed items - increase dosing.
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Operating Instructions UPster U 400 / U 500 / U 500S
12.2
Noise emission
Work place noise level LpA £ 70 dB
12.3
Electrical and hydraulic equipment data
See attached technical sheet
12.4
Dimensions, technical data, installation instructions
See attached technical sheet
13
Non-ionising radiation
Non-ionising radiation is not produced intentionally but unfortunately comes about due to
electrical operating equipment (e.g. electrical motors, high-voltage cables and magnetic
coils).
In addition the machine has no strong permanent magnet. There is a high possibility of
eliminating any influence on active implants (e.g. pacers, defibrillators) by maintaining a
safety distance of 30 cm (distance of the field source to the implant).
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Operating Instructions UPster U 400 / U 500 / U 500S
14
Help yourself in case of faults
Malfunction:
Remedy
Machine does not fill.
 No water present
 Dirt trap clogged
 Level switch defective
 Solenoid valve faulty
 Door fastener defective
Final rinse does not spray!
 No water present
 Dirt trap clogged
 Solenoid valve faulty
 Booster pump has failed (with air gap)
 Final rinse system is scaled
Stripes and smears on the
dishes!
 Rinse water mineral content too high (see operating
instructions)
 If only found at certain times, check water softening
unit with a view to regeneration. This, however, must
not be done during the washing time.
 Water pre-treatment defective or not carried out
 Different water type depending on the waterworks
 Unsuitable rinse agent or wrong dispensed quantity.
Strong formation of foam
in the wash tank!
 Detergent for dish-washing by hand enters the wash
tank because of pre-cleaning the dishes
 Daily cleaning is carried out with foaming cleansing
agents which then enter the machine.
 Improve pre-wash, as too much soiling is entering the
tank. Alternatively, empty wash tanks between uses.
 Final rinse water quantity too low
 Detergent or rinse aid product not suitable
 Temperatures too low < 40°C
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15
Staff training
Only trained and instructed personnel are allowed to work at the washing machine. Staff
responsibilities for operation, maintenance and repairs must be clearly defined.
Any personnel undergoing training are only allowed to work at the washing machine under
the supervision of an experienced person.
Persons
Trained operating
personnel
‚Trained in-house Qualified in-house
maintenance
maintenance worker
worker
or intallation engineers
Activity
Installation and assembly

Commissioning

Operation, use



Cleaning



Check safety devices



Troubleshooting


Troubleshooting,
mechanical
Troubleshooting,
electrical
Maintenance


Repairs




The instructions should be acknowledged in writing.
16
Authorised user of this documentation
The works described in this booklet (chapter 17 - 20) may only be carried out by
specialists of the manufacturer, the responsible agency or an authorized dealer.
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Operating Instructions UPster U 400 / U 500 / U 500S
17
Settings / modifications / on-site adaptation
17.1 Using the keyboard for programming
Increase value /
move forward
Decrease value/scroll
back
Function field
Accept / modify
Exit / Start Programming
Value field
Access codes for various user-levels have been defined. When the complete code has
been entered, it is compared to an internal code table. The corresponding user level is
then granted depending on the code that has been entered.
2 access codes are available for each user level; the first is for restricted access, i.e. no
modification of parameters is possible (viewing mode), and the second gives access to
the entire range of functions (viewing and modification).
This is described briefly in the short programming instructions that accompany every machine.
For control programming, the power supply must be available but the machine must be
completely switched off (no LED must be illuminated).
Code input:
View service data:
Modify service data:
View configuration data:
View dosing technology data:
Modify dosing technology data:
CODE 10000
CODE 10001
CODE 20000
CODE 40000
CODE 40044
17.2 Code input
To access code input mode, hold down the "0" key (for about 3 seconds) until you see
in the display.
Pressing the “0” key again lets you quit programming at any time.
The digit to be modified will flash.
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Operating Instructions UPster U 400 / U 500 / U 500S
Press the “I” key to increase the value/code indicated on the display unit, or press the “II”
key to decrease it, or press the “accept” key to save it. The next value will then flash and
will be the only one visible.
If your entry is incorrect code input is cancelled, and an information code of 122 is displayed.
If you enter all the digits correctly you will arrive at the chosen level, either service, configuration or machine data.
17.3
Service level
The list of service parameters can be found on this level (parameter numbers 1xx). You
can view or modify the parameters here, or you can access the rinse aid and cleaner
hose ventilation feature.
On the service level, you will first see the display below:
This corresponds to the viewing/modifying parameters (see 17.3.1)
This is equivalent to Ventilate rinse aid inlet (see 17.3.2)
This is equivalent to Ventilate detergent supply (see 17.3.3)
This corresponds re-setting partial demineralisation display (see 17.3.4)
This corresponds first-time-filling of boiler (see 17.3.5)
Press the “I” key to move forwards or the “II” key to move backwards or the “accept” key
to make a selection. You are now at the current level.
You can leave this level by pressing the “0” key.
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Operating Instructions UPster U 400 / U 500 / U 500S
17.3.1 View/modify parameters
Display
Press the “Accept” button to confirm.
Now, the first parameter is displayed with a value.
Press the “I” key to go forwards and the “II” key to go backwards, until the parameter you
require is displayed.
Confirm the parameter to be modified by pressing the “accept” key, the value will flash.
Increase the value using the "I" key or reduce it using the "II" key and confirm with the
"Accept" key.
You can leave this level by pressing the “0” key.
See 17.4 for list of parameters.
17.3.2 Ventilating the rinse aid inlet
Press the “Accept” button to confirm.
This actuates dosing pump; the remaining running time is indicated.
You can leave this level by pressing the “0” key. Ventilation is cancelled.
17.3.3 Ventilating the detergent inlet
Press the “Accept” button to confirm.
This actuates dosing pump; the remaining running time is indicated.
You can leave this level by pressing the “0” key. Ventilation is cancelled.
Should the ventilation process be insufficient, repeat the process.
The function "vent detergent pipe" is not existing with machines including detergent
dosing system type ADT ('Advanced Dosing Technology with depression dosing). The
detergent dosing pipe is vented automatically when the first cycle is running, after filling
of the detergent reserve container.
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Operating Instructions UPster U 400 / U 500 / U 500S
17.3.4 Resetting the TE degree of depletion display
Press the “Accept” button to confirm.
If the option "Display degree of depletion" is active during operation with partial demineralization cartridges, the counter has to be reset using the function above after the cartridge has been changed
You can leave this level by pressing the “0” key again.
17.3.5 First-time-filling of boiler
Press the “Accept” button to confirm.
After emptying the boiler (repair of descaling) it must be filled with water again before the
heater is switched on. This is achieved using this parameterization.
You can leave this level by pressing the “0” key again.
17.3.6 Configuration level
You will find a list of configuration parameters at this level (parameter numbers 2xx). You
can view and modify the parameters. You can also access the input and output states, or
set outputs for testing.
On the configuration level, you will first see the display below:
This corresponds to the viewing/modifying parameters.
This is equivalent to View/modify parameters (see 17.3.7)
This is equivalent to View input states.
This is equivalent to View/modify parameters (see 17.3.8)
This is equivalent to View and set output states.
This is equivalent to View/modify parameters (see 17.3.9)
Press the “I” key to move forwards or the “II” key to move backwards or the “accept” key
to make a selection. You are now at the current level.
You can leave this level by pressing the “0” key.
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17.3.7 Viewing/modifying parameters: (depending on the code entered)
Display
Press the “Accept” button to confirm.
Now, the first parameter is displayed with a value.
Press the “I” key to move forwards or press the “II” key to move backwards, until
the parameter you require is displayed.
Confirm the parameter to be modified by pressing the “accept” key, the value will flash.
Increase the value using the "I" key or reduce it using the "II" key and confirm with the
"Accept" key.
You can leave this level by pressing the “0” key.
See 17.4 for list of parameters.
17.3.8 Viewing input status:
Display
Press the “Accept” button to confirm.
Now, the first digital input will be shown, with status.
.
Use the “I“ to go forward and the “II“ to go backward until the desired input is displayed
Display: input set
Display: input not set
You can leave this level by pressing the “0” key.
.
The direct value (here the boiler temperature) is displayed for the analogue inputs. Use
the “I“ to go forward and the “II“ to go backward until the desired input is displayed
Assignment details for the inputs are given on the assignment list for each machine. (see
17.5).
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17.3.9 Viewing/modifying output status (depending on code input)
Display
Press the “Accept” button to confirm.
Viewing:
Now, the first output is shown with its status.
Press the “I” key to move forwards and the “II” key to move backwards, until you reach
the output you require.
Modifying:
Press the “Accept” key to confirm the modification of the output; the value flashes. Press
the “I” key to modify the value and press the “accept” key to save it.
The output is now set.
You can leave this level by pressing the “0” key.
Assignment details for the outputs are given on the assignment list for each machine.
(see 17.5)
17.3.10 Viewing/modifying the dosing technology level
By entering code 40000 (read only) or 40044 (read / enter), the user can access the 4th
parameter level summarizing all the dosing technology parameters:
P104, P105, P218, P219, P224, P225, P321, P322, P326, P327.
See 17.4 for list of parameters
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Operating Instructions UPster U 400 / U 500 / U 500S
17.4
Parameter list
Par.
no.
Configuration
options
Use as
101
Wash program
Key 1
Parameters
1 ... 50
-
5
Allocate the wash program to the
key I;
Assignment adjustable
102
Wash program
Key 2
Parameters
1 ... 50
-
7
Allocate the wash program to the
key II;
Assignment adjustable
103
Wash program
Key 3
Parameters
1 ... 50
-
7
Assign rinse programme -no. of
the key I+II pressed together;
Assignment adjustable
104
Rinse agent
dosing quantity
Parameters
0.10 ... 1.00
ml/litre
water
0.2
The value can be read from the
rinse aid container label (depends
on the water quality)
105
Detergent
dosing quantity
Parameters
0.1... 20.0
ml/litre
water
2.0
Value can be read from the detergent container label (dependant on
water quality)
106
Degree of hardness
Parameters
0 ... 50
°dH
(°KH)
30
The quantity of soft water available
between two regenerations depends onthe hardness of the water.
for partial demineralisation TE too
107
Beep ON/OFF
Parameters
0/1
-
1
Switch on/off acoustic ready message
109
Partial/full demineralisation
available?
Parameters
0,1,2
-
0
Partial/full demineralisation available ?
0: no
1: partial demineralisation (TE)
2: full demineralisation (FD)
110
Hardness litres
per cartridge type
Parameters
0 ... 250
120
When the cartridge’s capacity is
reached (hardness litres/degree of
hardness), “Replace Cartridge” will
be displayed
(INFO 725) is displayed (only in
the case of TE)
111
Total operating
time
display
Display
5 figures
h
Operating time,
query only
112
Total number of
wash cycles
Display
5 figures
-
Wash cycles/loads,
query only
113
Total number of
wash cycles since
last reset
Display
5 figures
-
Wash cycles/loads,
resetting possible
114
Serial number
Display
8 figures
-
Option for calling the serial number
115
Condition
remaining
cartridge capacity
Display
0 ... 100
%
Only for partial / full demineralisation:
TE: indication in %
VE: 100 = OK; 0 = replace
119
IR communication
Parameters
0/1
-
9735077
Value range Unit
Factory
setting
1000 l
1
Note
It is possible to shut off communication via IR interfaces. (0)
Design and construction subject to change without prior notice
Page 32 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
Par.
no.
Configuration
options
Use as
120
Total number of
wash cycles Indication
Parameters
0/1
-
0
Effective only upon power supply
reset ON/OFF
Caution! All changes to service
parameters are reset.
Power supply reset must be carried out within 5 minutes, otherwise factory settings will not be
loaded.
Without power supply reset, the information 123 will be displayed.
201
Machine type
Parameters
101 ... 104
-
103
101: EcoStar E/A1 (with FA, EW)
102: EcoStar E/A2 (minimal)
103: EcoStar E/A1 (with new dosing technology / ADT)
104: EcoStar with TL or A0
Caution! Only assignment list and
machine sequences change – no
parameter
202
Set tank temperature
Parameters
10 ... 82
°C
60
Standard for all the rinse programs
on one appliance! Output dependent on definition
203
Pre-rinse time
Parameters
0 ... 8
Sec.
0
See pre-rinse process step
204
Rinse time
Parameters
4.0 ... 25.0
Sec.
10.0
Duration of final rinse time, running
time limited by P306!!
205
Indication of operation
Parameters
0 ... 10
-
1
Definition of the information which
is to be switched via the potential-free contact
0 – no information
1 – filling/heating, ready for washing/washing or draining
2 – filling/heating, ready for washing/washing
3 – filling / heating
4 – ready for washing
5 – washing
6 – draining
7 – error
8 – not status machine OFF and
draining
9 – EW active
10 – not status Machine OFF
211
A0-value
Parameters
0 ... 60
-
0
For LED1 only! If 0 no A0 calculation, otherwise sum up and display
up to the set value.
218
Shortage of rinse
aid
Parameters
0/1
-
219
Shortage of detergent
Parameters
0/1
-
224
Power supply
mode
rinse aid dosing
pump
0 ... 3
-
9735077
Value range Unit
Parameters
Factory
setting
0
0
1
Note
Monitoring and display
Monitoring and display
Definition: Energizing rinse aid
pump:
0 – no signal
1 – energizing according to calculated running time
2 – energize as final rinse
3 – activate as per wash pump
Design and construction subject to change without prior notice
Page 33 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
Par.
no.
Configuration
options
Use as
225
Detergent dosing
pump activation
mode
Parameters
0 ... 4
-
1
Definition energizing detergent
pump:
0 – no signal
1 – energizing according to calculated running time
2 – energize as final rinse
3 – activate as per wash pump
4 – Option – detergent pump using
negative pressure dosing ADT
228
EW10 incorporated?
Parameters
0/1
-
0 or 1
In case of incorporated water softener set to 1
240
Detergent pump
activation mode
Parameters
0/1
-
0
Effective only upon power supply
reset ON/OFF
Caution! All changes to service
parameters are reset.
Power supply reset must be carried out within 5 minutes, otherwise factory settings are not
loaded.
Without power supply reset, the information 123 will be displayed.
241
Air gap (FA) incorporated?
Parameters
0/1
-
0
0: FA not available, final rinse over
Y1
1: FA available, plug connector
242
Drain pump (LP)
available?
Parameters
0/1
-
0
0: LP not incorporated
1: LP incorporated
243
Frost drainage
(without FA)
Parameters
0/1
-
0
0: no effect
1: Tank filling before Heating
321
Final rinse pump
output
Parameters
0.1 ... 10
l/h
1.3
Final rinse pump
Output definition.
322
Detergent pump
output
Parameters
0.1 ... 20
l/h
8.5
Detergent pump
Output definition.
326
Rinse aid vent
time
Parameters
0 ... 255
Sec.
180
Activate rinse agent pump temporarily to remove air from pipe.
327
Detergent vent
time
Parameters
0 ... 100
Sec.
30
Activate detergent pump temporarily to remove air from pipe.
346
Display LED2 or
LED1
Parameters
0/1
-
1
0: LED2 with LEDs
1: LED1 with temperature display
347
Desinfection temperature
Parameters
10 ... 80
°C
0
Only with disinfection machine
no.4 in parameter 201
348
Desinfection temperature
Parameters
0 ... 90
10 sec.
0
Only with disinfection machine
no.4 in parameter 201
9735077
Value range Unit
Factory
setting
Note
Design and construction subject to change without prior notice
Page 34 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
17.5
Left
dIn
dIn
dIn
dIn
dIn
dIn
dIn
AIn
AIn
Assignment list
View inputs / control outputs
Display
Right
1
0/1
2
0/1
3
0/1
7
0/1
9
0/1
10
0/1
12
0/1
1
83°C
2
60°C
Out 1.1
0/1
Out 1.2
0/1
Out 1.3
0/1
Out 2.1
0/1
Out 2.2
0/1
Out 2.3
0/1
Out 3.1
0/1
Out 3.2
0/1
Out 3.3
0/1
Out 3.4
0/1
Out 3.5
0/1
Leak water switch condition:
9735077
Input/output/other
Door closed
Boiler level
Tank level
Hall-sensor ADT (option)
Level rinse aid (option)
Detergent filling level (option)
Measure conductance VE (optional)
Boiler temperature
Tank temperature
Wash pump
Booster Pump
Drain pump
Rinse aid – dosage pump
Detergent – dosage pump
Tank heating
Filling valve
Soft starter valve
Boiler heating
Indication of operation
EW valve
Leak water switch must not have operated.
Design and construction subject to change without prior notice
Page 35 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
17.6 Rinse programmes parameter update: 01.06.2012
Wash time target value
Programme no.:
Boiler temperature target
value
Washing
Total
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
34
75
284
300
35
75
344
360
36
65
224
240
The dosage times will be adapted to the rinse time, so that the correct concentration remains if the rinse time is modified.
9735077
Design and construction subject to change without prior notice
Page 36 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
18
Operating errors
Despite being expertly designed, the machine may develop minor faults which are usually
easy to eliminate. This section explains a number of possible problems and how you can
deal with them yourself.
Always de-energise the system before carrying out work on the open appliance.
Switch the appliance off completely via the on-site circuit breaker.
Should any of the operational faults described arise repeatedly, their cause must be
established in each case.
Faults not described here can generally only be resolved by a technician or electrician.
Please contact your factory representative or authorised dealer.
18.1
Information reporting and troubleshooting
Confirmation key
On/Off button
Figure 2: Information display
Information displays can be cleared by pressing the confirmation key.
Provided that the machine function is restored, the next program sequence will begin.
The information display can also be deleted by pressing the “Off” key.
Information indicator (extract)
Info No.
120
9735077
Description
Emergency program active
Restricted washing possible.
121
Door not closed
122
123
Incorrect password / no authorization
Factory setting parameter list
126
Maintenance required
420
Shortage of rinse aid
Possible cause
No boiler / tank heating
No fresh water supply
Check system
Check connection S1
Change microswitch
Check microswitch adjustment
Replacing a defective I/O circuit board
Enter code once again
Switch the power supply on/off within 5
minutes to reset parameters to factory
settings. This will be rejected and parameters will be retained. Information
123 will disappear
The set operating hours (P122) or batch
number (P123) has been reached. Inform the service department and perform maintenance.
Reset the maintenance counter (P124)
If the machine is ready for operation, a
shortage of rinse agent will be signalled
(only if there is a built-in warning system).
Design and construction subject to change without prior notice
Page 37 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
Info No.
520
Description
Shortage of detergent
720
Regeneration in progress
723
Regeneration necessary
Possible cause
If the machine is ready for operation, a
shortage of detergent will be signalled
(only if there is a built-in warning system).
Regeneration program has started and
is in progress. (It is possible to pause
the program, but not cancel it.)
The user must start the regeneration.
(empty tank, add salt!)
Table 2: Information displays
18.2 Error messages and troubleshooting
Figure 3: Error messages
Error messages will disappear automatically when the fault has been rectified.
Error messages (extract)
ERR.-No. Description
001
EEPROM plug-in fault.
201
Boiler level not reached during
1st filling (only machines with
booster pump installed)
202
Boiler level not reached on time
during filling (only machines with
booster pump installed)
No change detected by the plug
connector when emptying (only
machines with booster pump installed)
203
204
9735077
No change yet detected by the
plug connector (only machines
with booster pump installed) after
the rinse time expired.
Possible cause
EEPROM not available / incorrectly
plugged in / defective
Empty or incorrect EEPROM
Replace EEPROM with correct parameter set
Fresh water inlet insufficient (water faucet closed)
Entering supply hose kinked
Inlet filter soiled
Entering solenoid valve defective
Boiler switch defective
See 201
Boost pump defective
Booster pump plug connector loosened
Start capacitor defective
Plug connector loosened
Plug connector loosened
Boiler level switch defective
No boost pump signal to - from input/output circuit boards
Check boost pump DSP / S2 using manual control
See 203
Design and construction subject to change without prior notice
Page 38 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
ERR.-No. Description
205
Boiler temperature not reached
after max. Heat time (P.310)
210
Temperature sensor short-circuit
211
Temperature sensor interruption
212
Actual boiler temperature too
high(>95°C)
Possible cause
Boiler heating defective / thermal fuse
radiator
Temperature sensor defective, incorrect
installation position
Boiler contactor defective, performance
switch loosened
No signal from I/O board
Check sensor cable (plug contacts)
Replace sensor
Install sensor correctly
See 210
310
Contactor sticking
Incorrect sensor / defective sensor
Check sensor / cable
Number of final rinse cycles for
Feeding water pressure too low
tank filling exceeded.
Sieve in feeding valve is dirty
Tank level analysis disrupted
Rinse jets soiled
Air trap soiled
Condensate in level pipe
Hose kinked / loose / not watertight
During the self-cleaning proDrain pump output insufficient
gramme the tank level (S3) does Drain pump soiled/defective
not fall on time.
Impeller loose
(Only with built -in drain pump.)
Drain pump plug connector loose
Start capacitor defective
Tank level analysis disrupted
No signal from I/O board
Tank temperature not reached af- Tank heating defective / thermal fuse
ter max. heat time (P.314)
Radiator
Temperature sensor defective, incorrect
installation position
Tank protection defective, performance
switch loose
Temperature sensor short-circuit See 210
311
Temperature sensor interruption
312
Actual Tank temperature too high See 212
(>85°C)
301
302
304
See 211
Table 3: Error messages
If the maximum temperatures are exceeded, the machine has to be disconnected from
the power supply and a service engineer must be called.
Should information or fault numbers not shown in the tables be indicated, or should the
suggested measure not lead to the elimination of the fault, please notify a customer service technician.
9735077
Design and construction subject to change without prior notice
Page 39 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
19
Maintenance, servicing
Regular maintenance is a prerequisite for the long-term reliable and safe operation of a
warewashing machine. Maintenance which is neglected or improperly carried out increases
the residual risk of unforeseen damage to property and persons, for which no liability will
then be assumed.
Maintenance work should only be conducted if the warewashing machine has been
switched off completely via the on-site power disconnection device.
Existing safety systems must not be removed!
CAUTION!
A functional test on all safety systems of the machine / installation is carried out during
every regular maintenance
We recommend concluding a maintenance contract with our authorised distributor in order
to ensure a long service life of the warewashing machine.
19.1 Basic safety measures during normal operation
Observe the maintenance intervals prescribed in the operating instructions!
Observe the maintenance instructions for the individual components!
Cordon off access to the operating area for unauthorised persons before starting maintenance or repair work. Display a sign drawing attention to the maintenance or repair work!
CAUTION!
Before implementing any maintenance or repair work the warewashing machine must be
switched off completely via the on-site power disconnection device and secured against
reactivation by using appropriate measures (e.g. via a padlock whose key is in the possession of the person conducting the maintenance or repair work)!
Failure to observe these precautions can result in severe injury or damage to property.
CAUTION!
CAUTION!
Before maintenance and repair work, ensure that the machine is empty and cool down the
boiler, pipes and washing chamber so that all parts of the machine that may be touched
have cooled down to room temperature!
Carefully dispose of any cleaning products that could harm the environment!
Before carrying out any maintenance and repair work, ensure that all the parts of the machine that may be touched have cooled down to room temperature!
Carefully dispose of any cleaning products that could harm the environment!
19.1.1 Before putting back into operation following maintenance or
repair work
CAUTION!
Before starting operations following maintenance or repair work, all initial tests must be
carried out as described in “Machine Settings for Initial Commissioning by the Service
Engineer”.
19.1.2 Observe environmental protection regulations
CAUTION!
For all work on or with the appliance, observe legal requirements relating to the avoidance
of waste materials and to their recycling/removal!
In particular, during installation, repair and maintenance work, materials that could pollute
water such as: Grease and oils, Cleaning fluids containing solvents, must not pollute the
ground or run into the sewerage system! These materials must be stored, shipped, collected and disposed of in suitable containers!
19.2 Dosing equipment
The dosing units themselves are maintenance free in principle but the working life of the
wearing parts (peristaltic tube) is largely dependent on the chemical used.
9735077
Design and construction subject to change without prior notice
Page 40 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
19.2.1 Change of products
Change of product means that one rinse aid or detergent product is replaced by another.
The parallel use of different products can result in failures.
 Hose lines and dosing units must always be rinsed out with warm water.
19.3
Maintenance plan
NOTE
1. Pumps
Check pumps for leak tightness, pump rotor noise, rotation direction
and function
Check pump suction
Check pump sieves correctly fitting and operating correctly
Check sliding seal/counter rotation ring
2. Wash system
Check water level in tank
Check that wash water pipe is watertight
Check washing system is complete and produces correct spray pattern
Check wash arm hubs
3. Fresh water final rinse
Check flow-water pressure
Check that the final rinse system is complete and produces the correct spray pattern
Check that system is watertight
4. Housing and mounting parts
Check housing, tank, sheet metal cover, hood, doors and covering of
machine base for damage and correct operation
Check tank cover screens
Check boiler, hoses, clamps, plastic parts and seals
5. Fresh water installation
Check level regulation
Check valves, clean dirt trap
Check that all fittings (incl. hand spray) are watertight
For built-in water softener: Check settings
For complete/partial water softener: Check functioning
Check water hardness
6. Waste water installation
Check if watertight
Check pressure hose position and operation of drain pump
7. Electrical installation
9735077
Design and construction subject to change without prior notice
Page 41 of 44
Component replaced
Component faulty
Component OK
UPSTER H500
Maintenance procedures
UPSTER U400
UPSTER U500
Maintenance work should only be conducted by authorised MEIKO personnel.
Component replaced
Component faulty
Component OK
UPSTER H500
Maintenance procedures
UPSTER U400
UPSTER U500
Operating Instructions UPster U 400 / U 500 / U 500S
Check of all fuses
Tighten all electrical connections
Check tank and boiler heating
Check thermostat and stop switch
8. Electrical safety check (certificate is optional)
Visual inspection
Check the protective conductor
Measure insulation resistance
Protection conductor current measurement
at least 1 x
year
at least 1 x
year
at least 1 x
year
at least 1 x
year
9. Detergent dosing
Check dosage, adjust if necessary
10. Rinse aid dosing
Check dosage, adjust if necessary
11. Operation check of the complete machine
Check machine for correct interaction of all functions
12. Test run
Check results of test wash and rinse
Brief instruction for new personnel
20
Environmentally acceptable measures, disposal of the
installation
Each discarded appliance is to be made immediately unserviceable - to avoid later accidents.

Switch the machine off completely via the on-site power disconnection device.

Completely empty the appliance's hydraulic system.
When you eventually dispose of the machine (removal/scrapping), its components should
be recycled in line with their materials.
A list of all materials that frequently occur during disassembly follows below:
 Chromium-nickel steel
 Aluminum
 Copper
 Brass
 Electrical and electronic parts
 PP and other plastics
21
Documentation
Installation drawing/standard drawing
Technical data
Wiring diagram/programming instructions
9735077
Design and construction subject to change without prior notice
Page 42 of 44
Operating Instructions UPster U 400 / U 500 / U 500S
9735077
Design and construction subject to change without prior notice
Page 43 of 44
Saugleitung für Reiniger bzw. Klarspüler
Suction line for detergent resp. rinse aid
Conduite d'aspiration pour détergent, resp. produit tensio-actif
Tubo d´aspirazione per detergente e brillantante
Tubo de aspiración para detergente y abrillantador
Ukáad ssący páynu do mycia lub nabáyszczacza
Aanzuigleiding voor zeep- resp. naglansmiddel
8 005 393
8 005 372
‡ 7 mm
9 006 926
Klarsichtschlauch für Reiniger
Transparent hose for detergent
Tuyau transparent pour détergent
Flessibile trasparente per detergente
Tubo flexible transparente para detergente
WĊĪyk przezroczysty do páynu do mycia
Transparante slang voor zeep
9 006 928
Schlauch blau für Klarspüler
Hose blue for rinse aid
Tuyau bleu pour produit tensio-actif
Flessibile blu per brillantante
Tubo flexible azul para abrillantador
WĊĪyk niebieski do nabáyszczacza
Slang blauw voor naglansmiddel
Deckel Reiniger- bzw. Klarspülerbehälter
Lid for detergent resp. rinse aid container
Couvercle pour conteneur de détergent, resp. produit tensio-actif
Tappo per canistre detergente o brillantante
Tapa del depósito de detergente o abrillantador
NakrĊtka kanistra z páynem do mycia lub z nabáyszczaczem
Deksel zeep- resp. naglanscontainer
ACHTUNG!
Saugleitung von Wärmequellen fernhalten!
ATTENTION!
Keep away suction line from heating sources!
ATTENTION!
Ecartez la conduite d'aspiration de toute source de chaleur!
ATTENZIONE!
Tenere il tubo d´aspirazione lontano da fonti di calore!
¡ATENCION!
¡Mantenga el tubo de aspiración alejado de las fuentes de calor!
UWAGA!
Ukáad ssący naleĪy trzymaü z dala od Ĩródeá ciepáa!
LET OP!
Aanzuigleiding van warmtebronnen verwijderd houden!
Saugleitung_9716513_7-sprachig_2009-09.doc
Original / Original / Original / Originale / Original / Origineel / Original
EG-/EU-Konformitätserklärung
2017-11-07 (Update)
EC-/EU-Declaration of Conformity / CE-/UE-Déclaration de conformité / CE-/UE-Dichiarazione di conformità / CE-/UE-Declaración de conformidad /
EG-/EU-conformiteitsverklaring / EG-/EU-försäkran om överensstämmelse
Firma
MEIKO Maschinenbau GmbH & Co. KG
Company / Société / Ditta / Empresa / Fabrikant / Företag
Englerstraße 3 - 77652 Offenburg - Germany
Kontakt
Internet: www.meiko.de
E-mail: info@meiko.de
Telefon: +49(0)781/203-0
Contact / Contact / Contatto / Contacto / Contact / Kontakt
Seriennummer
Serial number / numéro de série / numero di serie / número de serie / volgnummer /
serienummer
Spülmaschine Typ
Dishwasher model / Lave-vaiselle modèle / Lavastoviglie modello / Lavavajillas modelo / Vaatwasmachine model / Diskmaskin modell
UPster U 400
UPster U 500
UPster U 500S
Konformitätserklärung
Declaration of Conformity / Déclaration de conformité / Dichiarazione di conformità / Declaración de conformidad / Conformitetsverklaring /
Försäkran om överensstämmelse
Hiermit bescheinigen wir in alleiniger Verantwortung die Konformität des Erzeugnisses mit den grundlegenden
Anforderungen der folgenden EG-Richtlinien, harmonisierten Normen, nationalen Normen.
We hereby declare at our sole responsibility that the product conforms to the essential requirements of the following EC Directives, harmonized
standards, national standards.
Par la présente nous certifions sous notre seule responsabilité la conformité du produit avec les exigences fondamentales des directives CE,
normes harmonisées et normes nationales suivantes.
Con la presente dichiariamo sotto la nostra responsabilità la conformità del prodotto con i regolamenti basilari delle seguenti direttive CE, normative
armonizzate e normative nazionali.
Por la presente declaramos bajo nuestra sola responsabilidad que nuestros productos están en conformidad con las exigencias básicas de las siguientes
directivas de la CE, normas homologadas y normas nacionales.
Hiermee verklaren wij onder geheel eigen verantwoordelijkheid de conformiteit van het product met de fundamentele en gestelde eisen volgens
EG-richtlijnen, geharmoniseerde normen en nationale normen.
Vi intygar härmed på eget ansvar att produkten överensstämmer med de väsentliga kraven i nedan angivna EG-direktiv, harmoniserade standarder och nationella
standarder.
Richtlinie / Directive / Directive / Direttiva / Directiva / Richtlijn / Direktiv
2006/42/EG / 2014/30/EU
Dokumentationsbevollmächtigter
Viktor Maier
Responsible for documentation / Responsable de la documentation / Responsabile della
documentazione/ Responsable de la documentación / Voor deze documentatie verantwoordelijk /
Ansvarig för dokumentation
MEIKO Maschinenbau GmbH & Co. KG
Englerstr. 3 - 77652 Offenburg - Germany
Offenburg, 12.12.2017
MEIKO Maschinenbau GmbH & Co. KG
ppa.
(per procura)
Dr. Thomas Peukert
Technischer Leiter
Chief Technology Officer / Directeur de la technologie / Direttore tecnico /
Director técnico / Technisch directeur / Teknisk direktör
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Télécharger l’appli MEIKO Connect dans le App-Store.
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Scaricare l'app MEIKO Connect nel App-Store.
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Open the MEIKO Connect app and scan the QR code.
Ouvrir l’appli MEIKO Connect et scanner le code.
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Betriebsanleitung
Elektroplan
Ersatzteile
Montageplan
Installationsplan
Operating
instructions
Electrical wiring
diagram
Spare parts
Installation drawing
Installation diagram
Mode d’emploi
Schéma électrique
Pièces détachées
Plan d’installation
Diagramme
d’installation
Instrucciones de
uso
Diagrama eléctrico
Piezas de repuesto
Plano de montaje
Diagrama de
instalación
Gebruiksaanwijzing
Elektrisch
schakelschema
Reserveonderdelen
Montageplan
Installatiediagramm
Istruzione d’uso
Schema elettrico
Lista ricambi
Disegno di
montaggio
Schema
d’installazione
9746307