Wexiodisk WD-12 User manual

COMBI DISHWASHER
WD-12
(translation of the original documentation)
Read the manual before using the machine!
Installation and user manual
S/N: (En) Valid from: 201706 Rev.: 2.0

1. General information ......................................................................... 1
1.1 Symbols used in this manual ........................................................................... 2
1.2 Symbols on the dishwasher ............................................................................. 3
1.2.1 Machine marking ...................................................................................... 3
1.3 Checking that the machine and the manual correspond .................................. 4
1.4 EC Declaration of Conformity .......................................................................... 4
2. Safety instructions ........................................................................... 6
2.1 General information ......................................................................................... 6
2.2 Transport .......................................................................................................... 6
2.3 Installation ........................................................................................................ 7
2.4 Detergent and drying agent ............................................................................. 7
2.5 Operation ......................................................................................................... 8
2.5.1 Hot water .................................................................................................. 8
2.5.2 Crushing risk ............................................................................................. 8
2.5.3 Risk of slipping .......................................................................................... 8
2.6 Cleaning the dishwasher .................................................................................. 8
2.7 Washing the floor ............................................................................................. 8
2.8 Repairing and servicing the dishwasher .......................................................... 9
2.8.1 Instructions if the machine is not working ................................................. 9
2.9 Recycling the machine ..................................................................................... 9
3. Installation ...................................................................................... 10
3.1 General information ....................................................................................... 10
3.2 Requirements for the installation site ............................................................. 10
3.2.1 Lighting ................................................................................................... 10
3.2.2 Ventilation ............................................................................................... 10
3.2.3 Drain ....................................................................................................... 10
3.2.4 Space for servicing ................................................................................. 10
3.3 Transport and storage .................................................................................... 11
3.3.1 Unpacking ............................................................................................... 11
3.4 Installation ...................................................................................................... 12
3.4.1 Preparing for the installation ................................................................... 12
3.4.2 Positioning the machine .......................................................................... 12
3.4.3 Installing auxiliary equipment .................................................................. 13
WD-12 Rev. 2.0 (201706)

3.5 Connections ................................................................................................... 14
3.5.1 Machine in standard design .................................................................... 14
3.5.2 Machine with condensing unit (option) ................................................... 15
3.5.3 Electrical connection ............................................................................... 16
3.5.4 Water connection, regardless of any options .......................................... 16
3.5.5 Drain connection ..................................................................................... 17
3.5.6 Bleeding the booster pump ..................................................................... 18
3.5.7 Bleeding the hood lifting cylinder ............................................................ 18
3.5.8 Detergent and drying agent connection .................................................. 19
3.6 Settings options for detergent and drying agent equipment (option) ............. 20
3.6.1 24V AC or 230V AC power supply for detergent and drying agent dosing
via relay 9/J71 and relay 11/J73 ..................................................................... 20
3.6.2 Settings options for relay 9/J71 .............................................................. 23
3.6.3 Settings options for relay 11/J73 ............................................................ 24
3.7 Trial operation ................................................................................................ 25
3.7.1 Start-up schedule .................................................................................... 25
3.8 Technical documentation ............................................................................... 27
4. Instructions for use ........................................................................ 28
4.1 Preparations ................................................................................................... 28
4.1.1 The machine's design ............................................................................. 28
4.1.2 Preparations before filling ....................................................................... 30
4.1.3 Filling the machine .................................................................................. 30
4.2 Using the machine ......................................................................................... 31
4.2.1 Programme selection – Normal load (-) / Heavily soiled load (+) ........... 31
4.2.2 Changing the washing temperature and washing time ........................... 32
4.2.3 Positioning of items in baskets ............................................................... 34
4.2.4 Washing .................................................................................................. 36
4.2.5 Changing the water ................................................................................. 39
4.3 After use – cleaning ....................................................................................... 40
4.3.1 Draining and internal cleaning (machine without drain pump) ................ 40
4.3.2 Draining and internal cleaning (machine with drain pump) (option) ........ 41
4.3.3 Cleaning each week ............................................................................... 42
4.3.4 Cleaning the exterior ............................................................................... 42
4.3.5 Cleaning once a year .............................................................................. 43
4.3.6 Incorrect cleaning methods ..................................................................... 44
4.3.7 Operating problems ................................................................................ 45
5. Technical specifications ................................................................ 48
WD-12 Rev. 2.0 (201706)

WD-12 Rev. 2.0 (201706)
General information
1
1. General information
Read the instructions in this manual carefully as they contain important informa-
tion regarding the correct, effective and safe installation, use and servicing of the
dishwasher.
The dishwasher is intended to be used for washing items that are found in the
general catering and restaurant trade.
The dishwasher can be equipped with a number of different options. Certain op-
tions may be standard in a number of countries. Check what your machine is
equipped with.
The capacity requirements of the machine can be found in the TECHNICAL
DATA chapter.
Before the dishwasher is started up and used, the following points should be ob-
served:
• The SAFETY INSTRUCTIONS chapter must be studied carefully before
commissioning the machine.
• Installation of the machine must be performed in accordance with the re-
quirements and instructions indicated in the INSTALLATION and TECHNI-
CAL SPECIFICATIONS chapters.
• Any personnel who may at some point use the machine must be trained in
its operation, use and care.
• The dishwasher should not be used by anyone suffering from a physical or
mental illness.
• A close eye should be kept on any children in the vicinity of the machine to
ensure they do not tamper with it.
• All cover plates must be installed during use.
The machine’s display indicates what the machine is doing. The machine’s vari-
ous temperatures and any alarms are also shown.
The electronics in the machine are RoHS compatible.
Keep this manual in a safe place so that it can and should be used by other op-
erators of the dishwasher.

WD-12 Rev. 2.0 (201706)
General information
2
1.1 Symbols used in this manual
This symbol warns of situations where a safety risk may arise. The instructions
given should be followed in order to prevent injury.
This symbol on a machine part warns of electrical equipment. The machine must
be entirely non-live during service, turn off the power at the power switch and if
required, the switch should be locked to prevent unintentional operation. The
component may only be removed by a qualified electrician.
The machine’s electronics are sensitive to electrostatic discharge (ESD), which is
why a static electricity wristband must be used when handling the electronics at
all times.
This symbol explains the correct way to perform a task in order to prevent poor
results, damage to the dishwasher or hazardous situations.
This symbol identifies recommendations and hints to help you get the best results
when washing, to increase the machine’s lifespan and reduce the risk of emer-
gency shutdown.
This symbol explains the importance of careful and regular cleaning of the ma-
chine to meet hygiene requirements.

WD-12 Rev. 2.0 (201706)
General information
3
1.2 Symbols on the dishwasher
This symbol on a machine part warns of electrical equipment. The machine must
be entirely non-live during service, turn off the power at the power switch and if
required, the switch should be locked to prevent unintentional operation. The
component may only be removed by a qualified electrician.
The machine’s electronics are sensitive to electrostatic discharge (ESD), which is
why a static electricity wristband must be used when handling the electronics at
all times.
1.2.1 Machine marking
The machine has two rating plates, one of which is placed at the bottom of one
side of the machine and the other in the electrical cabinet. The technical informa-
tion on the plates is also included on the machine's wiring diagram. The various
rating fields show:
1. Machine type
2. Machine serial number
3. Year of manufacture
4. Enclosure protection class
5. Voltage
6. Number of phases with or without zero
7. Frequency
8. Main fuse
9. Motor output
10. Electrical heating output
11. Max. output
S/N:
VHz A
kW kW kW
Type
Mårdvägen 4, S-352 45 VÄXJÖ SWEDEN
M
IP
1
2
5
9
6
4
8
11
3
7
10
!
marks_15

WD-12 Rev. 2.0 (201706)
General information
4
1.3 Checking that the machine and the manual correspond
Check that the type description on the rating plate corresponds with the type de-
scription on the front of the manual. If manuals are missing, it is possible to order
new ones from the manufacturer or the local distributor. When ordering new man-
uals, it is important to quote the machine serial number found on the rating plates.
1.4 EC Declaration of Conformity
A so-called EC Declaration of Conformity is provided on delivery of the product.
CE_16_2
1
2
3
5
6
7
7
7
8
6
6
6
4

WD-12 Rev. 2.0 (201706)
General information
5
1. Contact details of the manufacturer (Wexiödisk AB, Mårdvägen 4,
SE-35245 Växjö, SWEDEN, Tel: [phone], Fax: [phone],
E-mail: [e-mail]).
2. Representatives of Wexiödisk AB.
3. Person responsible for the product’s documentation.
4. Year of manufacture of the product.
5. The EU directives with applicable provisions to which all the dishwashers,
special machines and accessories comply.
6. Harmonised standards for the directives specified, and which the dish-
washers, special machines and accessories meet, wherever relevant.
7. Model designation and serial number of the dishwashers, special machines
and accessories the document applies to.
8. Place and date with signature and name (in block letters) of the person re-
sponsible for ensuring compliance with legislation and regulations.

WD-12 Rev. 2.0 (201706)
Safety instructions
6
2. Safety instructions
2.1 General information
The machine is CE marked, which means that it complies with the requirements
of the EU machinery directive with regard to product safety. Product safety means
that the design of the machine will prevent personal injury or damage to property.
Modifying the equipment without the approval of the manufacturer invalidates the
manufacturer’s product liability.
To further improve safety during installation, operation and servicing, the operator
and the personnel responsible for installing and servicing the machine should
read the safety instructions carefully.
Switch off the dishwasher immediately in the event of a fault or malfunction. The
regular checks described in the manual must be carried out in accordance with
the instructions. The machine must only be serviced by trained personnel. Use
original spare parts. Warranty repairs must be performed by an authorised com-
pany. Contact an authorised service company to draw up a programme of pre-
ventative care and maintenance. For authorised service companies, please see
www.wexiodisk.com or contact Wexiödisk AB. Dangerous situations may arise if
the instructions above are not followed.
Before using the machine, ensure that personnel are given the necessary training
in operating and maintaining the machine.
2.2 Transport
Handle the machine with care during unloading and transport to avoid the risk of
it tipping over. Never lift or move the machine without using the wooden packag-
ing to support the stand.

WD-12 Rev. 2.0 (201706)
Safety instructions
7
2.3 Installation
The machine is designed for quick electrical installation.
The electrical cabinet must only be opened by an authorised electrician. The ma-
chine is sensitive to electrostatic discharge (ESD), which is why a static electricity
wristband must be used when handling the electronics.
Water and steam pipes must only be connected by authorised personnel.
Water pipes must be connected in a way that complies with the current regula-
tions of the local water supply authority. Check that the water connections do not
leak before starting the machine.
Make sure that the mains voltage is the same as that indicated on the machine's
rating plate. The machine should be connected to a lockable mains switch.
For increased safety, it is recommended to equip the installation with a ground
fault circuit interrupter.
2.4 Detergent and drying agent
Only detergent and drying agent intended for industrial dishwashing machines
must be used. Ordinary washing-up liquid must not be used in the machine or for
soaking. Contact your detergent supplier regarding the choice of a suitable deter-
gent.
Be aware of the risk of handling washing and drying agents. Protective gloves and
safety glasses should be used when handling dishwasher detergent. Read the
warning text on the detergent and drying agent containers as well as the deter-
gent supplier's regulations.

WD-12 Rev. 2.0 (201706)
Safety instructions
8
2.5 Operation
• If the machine will not be used for a longer period, the power to the machine
should be turned off using the power switch, the water supply turned off and
hood should be left open.
• Avoid contact with the back of the machine as it becomes hot during oper-
ation.
2.5.1 Hot water
The temperature of the washing water is 60°C and that of the rinsing water 85°C.
Do not open the hood until the rinsing phase has finished.
2.5.2 Crushing risk
When using a dishwasher with automatic hood lift, be very careful when raising
and lowering the hood.
2.5.3 Risk of slipping
The floor should be kept dry to eliminate any risk of slipping. Mop up any water
and leftover food that has been spilt.
2.6 Cleaning the dishwasher
The water in the tank has a temperature of approximately 60°C and contains de-
tergent. Be careful when draining and cleaning the wash tank. Wear protective
gloves and safety glasses and have an eyebath within easy access.
The machine must not be cleaned with a pressure washer or steam, either inside
or out. Pressure washing with steam may seriously damage the machine and in-
validate the manufacturer’s/supplier’s warranty.
In order to satisfy current requirements, electrical components of approved enclo-
sure classes are used. No enclosure class is designed to withstand high pressure
or steam.
2.7 Washing the floor
When the floor is washed, water can splash up under the machine and damage
the components. These have not been designed to withstand being washed with
water. Do not wash the floor within a distance of 1 metre from the dishwasher.
Problems with splashing can also occur when using ordinary hoses.

WD-12 Rev. 2.0 (201706)
Safety instructions
9
2.8 Repairing and servicing the dishwasher
Make sure the machine is non-live before removing the cover plate. Turn off the
power using the power switch. If required, the switch must be locked to prevent
unintentional operation. Avoid touching hot pipes and booster heaters.
2.8.1 Instructions if the machine is not working
Check the following:
• Are there any error messages on the display?
• Has the machine been used according to the instructions?
• Are all the removable parts in the correct place?
• Is the mains switch in the ON position?
• Are the fuses in the electrical cabinet undamaged? Ask the service person-
nel to check the fuses.
If none of the above solves the problem, authorised service personnel must be
called to check the machine. For authorised service companies, please see
www.wexiodisk.com or contact Wexiödisk AB.
2.9 Recycling the machine
When the dishwasher has reached the end of its service life, it must be recycled
in accordance with current regulations. Contact a company which specialises in
recycling.

WD-12 Rev. 2.0 (201706)
Installation
10
3. Installation
3.1 General information
The machine must be installed by authorised personnel only.
Read these instructions carefully, as they contain important information regarding
the correct installation method.
Software version 4.7 or later should be used to connect a WD-PRM 7 to a WD-
12. If you are using an earlier software version this should be updated. The level
pipe in the dishwasher has been replaced with a bottom filter.
The instructions should be used together with the machine's wiring diagram and
flow diagram.
The machine is CE marked. The CE mark is only valid for machines that have not
been modified. If the machine is damaged as a result of the instructions not being
followed, this invalidates the supplier's guarantee and the product liability.
3.2 Requirements for the installation site
3.2.1 Lighting
In order to ensure the best possible working conditions during installation, opera-
tion, servicing and maintenance, make sure that the machine is installed in a well-
lit room.
3.2.2 Ventilation
The machine produces heat and steam when in operation. In order to ensure the
best possible working conditions, a certain air change rate is required in the dish-
washing room. The ventilation requirements for the room are dimensioned as per
applicable standards.
3.2.3 Drain
There must be a floor drain with an effective trap for the machine's waste water
and for water used for cleaning. The floor drain capacity can be found in the
TECHNICAL SPECIFICATIONS.
3.2.4 Space for servicing
A 1-metre area should be left clear in front of the machine for servicing purposes.

WD-12 Rev. 2.0 (201706)
Installation
11
3.3 Transport and storage
Always transport the machine in an upright position.
Take care during transport, as there is a risk of the equipment tipping over. NOTE:
The machine must not be transported without a pallet or other support, otherwise
the machine may become damaged. When transporting the machine without a
normal wooden pallet, always check that none of the components underneath the
machine can be damaged.
A=Wooden pallet
If the machine is not being installed immediately, it must be stored in a frost-free
area where the air is dry.
3.3.1 Unpacking
Check that all parts have been delivered by comparing them with the delivery
note.
Remove the packing material. Inspect the machine for any transport damage.
WD4_17
A

WD-12 Rev. 2.0 (201706)
Installation
12
3.4 Installation
3.4.1 Preparing for the installation
Check that there is sufficient room for the dishwasher at the installation location.
Check that there are correct connections for water, electricity and a waste pipe at
the installation location.
Check that the overheating protection device is reset.
3.4.2 Positioning the machine
Check the following points before the machine is placed in position:
• Check that the fuse for the machine at the site is off and non-live.
• Remove the protective plastic on the sides which are to be stood against a
wall.
• If holes need to be drilled in the machine, the holes must be fitted with an
edge strip or similar protection.
• Put the machine in position and check that it is horizontal using a spirit lev-
el. Use the legs to adjust machine height. Once the machine has been filled
with water, do another check to make sure the machine is standing level.
• If the machine is to be corner-loaded, it must be positioned with the control
panel furthest away from the wall.
• Adjust the height using the machine's legs. The machine can also be fitted
with extension legs (35mm).

WD-12 Rev. 2.0 (201706)
Installation
13
3.4.3 Installing auxiliary equipment
Once the machine is in place and has been adjusted horizontally and vertically,
the auxiliary equipment can be fitted.
The machine can be positioned so that it can be straight-loaded or corner-loaded.
NB: When connecting sinks and conveyors, no holes must be drilled on the front
of the machine. If a hole does need to be drilled in the machine, the hole must be
fitted with an edge strip or similar protection.
A=Connection sink
B=Connection conveyor
The connection profile must look like the one shown in the drawing. The distance
of 6 mm may be reduced, but must not be less than 3 mm.
• Attach the sink connection to the machine and then adjust.
• Drill two ø 4.5 mm holes through the sink connection and the machine, ap-
prox. 100 mm from each outer edge.
• Countersink the holes.
• Seal with silicone between the connection and the machine.
• Secure the sink with countersunk M4 screws, grommets on the outside sur-
face and nuts. Alternatively, you can secure the sink to the wall with wall
brackets.
Use a spirit level to check that the sinks are horizontal and adjust the height, if
necessary.
50
50
50
20
3
20
66
B
A
B
AA B
304222

WD-12 Rev. 2.0 (201706)
Installation
14
3.5 Connections
3.5.1 Machine in standard design
1. Electrical connection
2. Water connection
3. Drain connection
4. Plugged hole for detergent hose
5. Bleeding screw, hood lift
6. Steam connection (steam-heated machine) (option)
7. Condensation water connection (steam-heated machine) (option)
8. Alternative electrical connection

WD-12 Rev. 2.0 (201706)
Installation
15
3.5.2 Machine with condensing unit (option)
Always use cold water connection if the machine has a condensing unit.
1. Electrical connection
2. Cold water connection
3. Drain connection
4. Plugged hole for detergent hose
5. Bleeding screw, hood lift
6. Alternative electrical connection
7. Ventilation condensing unit
• A=Safety valve
If necessary, the safety valve (A) is connected to an appropriate drainage point.
5
26
4
1
3
1
3
6
7
3
1
2
11433_R1 A

WD-12 Rev. 2.0 (201706)
Installation
16
3.5.3 Electrical connection
The machine is designed for quick electrical installation.
This symbol on a machine part warns of electrical equipment. The machine must
be entirely non-live during service, turn off the power at the power switch and if
required, the switch should be locked to prevent unintentional operation. The
component may only be removed by a qualified electrician.
The machine’s electronics are sensitive to electrostatic discharge (ESD), which is
why a static electricity wristband must be used when handling the electronics at
all times.
The machine must be connected to a lockable mains switch. This should be
placed on a wall, well-protected from water and from the steam which escapes
when the hood is opened. The machine is supplied with the electrical cable con-
nected (1).
Information on electrical connection is shown on the machine's wiring diagram.
These diagrams are located in the plastic file on the inside of the front panel. Store
them in the file provided after installation too.
3.5.4 Water connection, regardless of any options
A shut-off cock must be installed on the incoming lines
The water supply pipe is fitted with a break tank.
Connect the water pipe according to the marks by the connection point (2). For a
steam-heated dishwasher, connect the pipes for the steam (6) and condensation
water (7) as well. If the machine is connected to a hose, the internal diameter of
the hose must be at least 12 mm.
The required water flow and pressure can be found in the TECHNICAL SPECIFI-
CATIONS section.