Wexiodisk WD-90 DUO User manual

COMBINATION DISHWASHER
WD-90 DUO
Translation of original user manual
CAUTION: Read the instructions before using the appliance
Installation and user manual
S/N: Valid from: 2017-02 Rev.: 1 (en)

Rev. 1 (201702)OUD09-DW
1. General information ......................................................................... 1
1.1 Symbols used in this manual ........................................................................... 1
1.2 Symbols on the dishwasher ............................................................................. 2
1.2.1 Machine marking ...................................................................................... 2
1.3 Checking that the dishwasher and manual correspond ................................... 3
1.4 EC Declaration of Conformity .......................................................................... 4
2. Safety instructions ........................................................................... 6
2.1 General information ......................................................................................... 6
2.2 Transport .......................................................................................................... 6
2.3 Installation ........................................................................................................ 6
2.4 Detergent and drying agent ............................................................................. 7
2.5 Operation ......................................................................................................... 8
2.5.1 Hot water .................................................................................................. 8
2.5.2 Risk of crushing ........................................................................................ 8
2.5.3 Risk of slipping .......................................................................................... 8
2.5.4 Live parts .................................................................................................. 8
2.5.5 Sounds ...................................................................................................... 9
2.6 Cleaning ........................................................................................................... 9
2.7 Repairing and servicing the dishwasher .......................................................... 9
2.7.1 Directions in the event that the machine does not work or breaks down .. 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/waste pipe ..................................................................................... 10
3.2.4 Space for servicing ................................................................................. 11
3.3 Preparing for the installation .......................................................................... 11
3.4 Transport and storage .................................................................................... 12
3.5 Unpacking ...................................................................................................... 12
3.6 Installation ...................................................................................................... 13
3.6.1 Fitting the condensation unit ................................................................... 14
3.6.2 Connections ............................................................................................ 16
Water connection ................................................................................. 18
Electrical connection ............................................................................ 18
Drain/waste pipe connection ................................................................ 18
3.6.3 Bleeding the booster pump ..................................................................... 19
3.6.4 Bleeding the hood lifting cylinder ............................................................ 19

Rev. 1 (201702)OUD09-DW
3.7 Installing detergent and drying agent equipment ........................................... 20
3.7.1 Electrical connection of the equipment ................................................... 20
3.7.2 Detergent dosage ................................................................................... 22
3.7.3 Drying agent dosage ............................................................................... 23
3.8 Trial operation ................................................................................................ 24
3.8.1 Checklist for start-up ............................................................................... 24
3.9 Recycling ....................................................................................................... 25
3.10 Technical documentation ............................................................................. 25
4. Using the dishwasher .................................................................... 26
4.1 Before washing .............................................................................................. 27
4.1.1 Dishwasher parts .................................................................................... 27
Exterior parts ........................................................................................ 27
Washing compartment ......................................................................... 28
Tank ..................................................................................................... 30
4.1.2 Before filling the dishwasher with water .................................................. 30
4.1.3 Before washing with a potwash program ................................................ 32
4.1.4 Before washing with a normal wash program ......................................... 32
4.1.5 Positioning of items in baskets ............................................................... 32
Potwash ............................................................................................... 32
Accessories for potwash basket ........................................................... 34
Normal wash ........................................................................................ 37
4.2 Washing ......................................................................................................... 38
4.2.1 Filling with water ..................................................................................... 38
4.2.2 Washing .................................................................................................. 38
4.2.3 Wash programs ...................................................................................... 39
Normal wash programs ........................................................................ 40
Potwash programs ............................................................................... 41
Granule collection program .................................................................. 41
4.2.4 Cancelling a wash program and stopping the machine .......................... 41
Cancelling a wash programme ............................................................. 41
Stopping the machine .......................................................................... 41
4.3 After use ......................................................................................................... 42
4.3.1 Care and maintenance ........................................................................... 42
4.3.2 Check the wash result ............................................................................ 44
4.3.3 Changing the water ................................................................................. 46
4.3.4 Cleaning the inside of the machine ......................................................... 48
4.3.5 Checking and cleaning of spool pipes, rinse pipes, cold water jet and
draining nozzles ..................................................................................... 52
4.3.6 Cleaning the exterior ............................................................................... 53
4.3.7 Checking the amount and cleaning the granules .................................... 53
Collection of granules .......................................................................... 53
Cleaning .............................................................................................. 54
Checking the granules ......................................................................... 54

Rev. 1 (201702)OUD09-DW
4.3.8 Changing the granules ............................................................................ 54
Recycling the granules ........................................................................54
4.3.9 Checking the hood’s anti-crushing system ............................................. 55
4.3.10 Longer periods without use ................................................................... 55
Periods without use of up to a week .................................................... 55
Periods without use of longer than a week .......................................... 56
4.3.11 Operating problems .............................................................................. 57
Troubleshooting ................................................................................... 57
Machine faults and user errors ............................................................. 58
5. Technical data ................................................................................ 63

WD-90 DUO Rev. 1 (201702)
General information
1
1. General information
The dishwasher is intended for the washing of potwash items (e.g. pots and pans,
canteens, baking trays, etc.) and normal wash items (e.g. glass, cutlery and
crockery, etc.) in general catering and the restaurant trade.
The capacity requirements for connections, waste pipe, etc., and the emissions
relating to noise levels which the machine generates in operation can be found
under “Technical data” on page 63.
Before the dishwasher is brought into service and used, the following points
should be observed:
• The section on safety (See “Safety instructions” on page 4.) must be stud-
ied carefully before bringing the machine into service.
• Installation of the machine must be performed in accordance with the
requirements and instructions outlined in the chapter “Installation” on
page 10.
• Any personnel using or who may at some point use the machine must be
trained in its operation and use, se “Using the dishwasher” on page 26.
• The dishwasher should not be used by anyone suffering from a physical or
mental illness.
• A close eye must be kept on any children in the vicinity of the machine to
ensure they do not tamper with it.
• All protective covers must be installed during use.
Text messages appear on the machine’s display which indicate what the machine
is doing. Adjustable reference values and alarms are also indicated on the dis-
play. For setting of the reference values, contact your service engineer. The
alarms which may potentially occur and the action which should be taken in re-
sponse to these can be found under “Operating problems” on page 57.
1.1 Symbols used in this manual
This symbol warns of situations where a safety risk may arise. The instructions
given must be followed in order to prevent injury.
This symbol on a machine component warns of the presence of electrical voltage.
This symbol explains the correct way to perform a task in order to prevent damage
to the dishwasher.
This symbol identifies recommendations and hints to help you get the best results
when washing and to increase machine availability and lifetime.
This symbol explains the importance of careful and regular cleaning of the ma-
chine to meet hygiene requirements.
STOP
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WD-90 DUO Rev. 1 (201702)
General information
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1.2 Symbols on the dishwasher
This symbol on a machine component warns of the presence of electrical voltage.
The component may only be disconnected by a qualified electrician or trained
personnel.
1.2.1 Machine marking
The machine has two rating plates, one on the side of the machine at the bottom
(see figure), and the other in the electrical cabinet. The technical data on the
plates can also be found on the machine’s wiring diagram.
Location of rating plates
Rating plate:
1. Machine type 7. Frequency
2. Machine serial number 8. Main fuse
3. Year of manufacture 9. Motor output
4. Enclosure protection class 10. Electrical heating output
5. Voltage 11. Max. output
6. Number of phases with or without neutral
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General information
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1.3 Checking that the dishwasher and manual correspond
Check that the type description on the rating plate matches the type description
on the front of the installation and user manual.

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General information
4
1.4 EC Declaration of Conformity
A so-called EC Declaration of Conformity is provided on delivery with
dishwashers that are delivered to countries covered by the EEA agreement (EU
member states and EFTA countries). The contents of this are described below.
Example of EC Declaration of Conformity document
1
2
3
4
5
6

WD-90 DUO Rev. 1 (201702)
General information
5
1. Wexiödisk AB’s authorised representative (dealer)
2. Responsible for technical specification (same address as given for
manufacturer)
3. The EU directives with applicable provisions to which the dishwashers and
accessories comply
4. Harmonised standards for the directives specified, and which dishwashers
and accessories meet, wherever relevant
5. Model designation of the dishwashers and accessories the document
applies to, sorted by type
6. Place and date with signature and name in block letters of the person
authorised to draw up a declaration of conformity on behalf of the
manufacturer
In addition to that listed above, the document contains the manufacturer’s name,
address, telephone and fax number.

WD-90 DUO Rev. 1 (201702)
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 will invalidate
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
machine must only be repaired by trained engineers. The regular checks de-
scribed in the installation and user manual must be carried out in accordance with
the instructions. The machine must be serviced by personnel authorised for this
purpose by the manufacturer. Use original spare parts. Contact an authorised
service company to draw up a programme of preventative care and maintenance.
Hazardous situations may arise if the instructions above are not followed.
Before the machine enters service, ensure that the staff are given the necessary
training in handling and looking after the machine.
2.2 Transport
Handle the machine with care during unloading and transport; there is a risk of it
tipping over.
2.3 Installation
This symbol on a machine component warns of the presence of electrical voltage.
The component may only be disconnected by a qualified electrician. Make sure
the machine is non-live (turn off the power at the safety switch) before any work
is performed on the machine. The electronics in the machine is sensitive to elec-
trostatic discharge (ESD), which is why a static electricity wristband must be used
when handling the electronics.
The dishwasher’s electrical cabinet is located within the cover plate on the right-
hand side of the dishwasher. The cover plate creates a seal against the electrical
cabinet and serves as a lid for it. There are pumps and other live components
within the two other cover plates on the bottom section of the dishwasher. The
cover plates may therefore not be removed by anyone other than a service engi-
neer or a qualified electrician.
STOP
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WD-90 DUO Rev. 1 (201702)
Safety instructions
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Cover plates (the machine’s electrical cabinet is located inside the cover plate denoted by
the arrow and asterisk)
Connection of water should only be undertaken by qualified personnel.
Water pipes must be connected in a way that complies with the regulations of the
local water supply company. Check that the water and steam connections are
tight and free of leaks before the machine is started up.
Make sure that the mains voltage is the same as that indicated on the machine’s
rating plate. The machine must be connected to a lockable mains switch.
2.4 Detergent and drying agent
Only detergent and drying agent intended for industrial dishwashers may 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 detergent.
Be aware of the risks involved in handling detergents and drying agents. Protec-
tive gloves and safety glasses should be used when handling dishwasher deter-
gent. Read the warning text on the container for detergents and drying agents.
Read the product data sheet and the recommendations from the dishwasher
manufacturer.
*
25-4-00-022
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Safety instructions
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2.5 Operation
2.5.1 Hot water
The temperature of the wash and rinse water is maintained during operation at
58°C and 85°C, respectively.
2.5.2 Risk of crushing
The machine is fitted with an anti-crushing system, which prevents serious injury.
If anything becomes trapped between the hood and the bottom section, the hood
reverses and moves up. The sensitivity of the anti-crushing system is adjustable
and can be set by a service engineer. Do not place hands or fingers in the
locations indicated in the diagram below when the hood is closing.
2.5.3 Risk of slipping
To prevent the risk of people slipping due to granules being spilled on the floor,
the latter should be regularly swept clean. Keep the floor dry. Mop up any water
which has been spilled.
2.5.4 Live parts
Inside the cover plates on the bottom section of the machine are parts and com-
ponents that are live. The cover plates may therefore not be removed by anyone
other than a service engineer or a qualified electrician.
STOP
STOP
25-4-00-017
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Safety instructions
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2.5.5 Sounds
During washing using the potwash programmes with granules, the sound level
can become high (see Sound levels table in chapter entitled Technical data in In-
stallation and User Manual). Hearing protection should therefore be used when
running potwash programmes with granules.
2.6 Cleaning
The temperature of the water in the tank is approximately 55–65°C, and the water
contains detergent. Be careful when draining and cleaning the tank. Use protec-
tive gloves.
Pressure washers must not be used for cleaning the machine. If water from a
pressure washer is directed at the electrical cabinet, it may penetrate the cabinet
and damage the electrical equipment, thereby impacting on safety.
To meet current regulations, electrical components of approved enclosure class
are used. No enclosure class is designed to withstand high pressure.
The machine exterior may not be washed down with a pressure washer, nor
should the machine be washed down using a hose pipe (applies mainly to con-
nection points). Water may penetrate the electrical cabinet and control panel and
damage the equipment, thereby impacting on safety.
If floors are cleaned using high-pressure equipment, water may splash up under
the machine and damage the components. These have not been designed to
withstand being washed with water at high pressures. Never use a pressure
washer to clean the floor within one metre of the machine without the special pro-
tective covers that are available to prevent splashing. Problems with splashing
can also occur when using an ordinary hose pipe.
2.7 Repairing and servicing the dishwasher
Make sure the machine is non-live before opening the electrical cabinet. Turn off
the power at the mains switch. Avoid touching hot pipes and the booster heater.
2.7.1 Directions in the event that the machine does not work or breaks down
If the machine breaks down, e.g. a pipe breaks or the tank leaks, etc., turn off the
power at the safety switch. Call a service engineer.
If the machine has to be stopped while washing is in progress, e.g. because you
selected the wrong programme, something happened with the basket or the items
being washed when washing was under way, etc., press the dishwasher’s On/Off
button. If you need to open the hood, the dishwasher must be re-started (see
“Cancelling a wash program and stopping the machine” on page 41).
STOP
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WD-90 DUO Rev. 1 (201702)
Installation
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3. Installation
3.1 General information
The machine must only be installed by authorised personnel.
Read these instructions carefully, as they contain important information regarding
the correct installation method. The instructions should be used together with the
machine’s wiring diagram and flow diagrams for water.
The machine is CE marked. The CE mark is only valid for an unmodified machine.
Any damage to the machine arising from failure to follow the instructions will in-
validate the supplier’s warranty and 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, the dishwashing room will require a given air
change rate. The ventilation requirements for the room are to be dimensioned on
the basis of the applicable standards.
3.2.3 Drain/waste pipe
There must be a floor drain with functioning trap for the dishwasher’s waste water
and any other waste water. If a loading table is located next to the machine, the
drain for the waste pipe is best positioned under the loading table. Capacity re-
quirements for the floor drain are stated in “Technical data” on page 63.
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WD-90 DUO Rev. 1 (201702)
Installation
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3.2.4 Space for servicing
The dishwasher is designed to allow it to be positioned in a corner as shown in
the figure below. There must be a gap of at least 100 mm between the walls and
the dishwasher. A clearance of around 1 metre must be left in front of and to the
right of the dishwasher to allow access for servicing and maintenance. The
electrical cabinet can be swung out from the dishwasher when servicing and
repairs are needed. To facilitate this, clearance is needed in the form of a semi-
circle with a radius of around 0.75 m running from the front right-hand corner of
the machine, as shown in the figure below. If e.g. a loading table is to be
positioned next to the machine, this should be easy to move.
Dishwasher (seen from above) positioned next to a wall
3.3 Preparing for the installation
Check that there is sufficient room for the dishwasher at the installation location
and that the ceiling is high enough for the machine with its hood open. Check that
there is sufficient room to transport the dishwasher to its installation location on
delivery. The machine’s dimensions can be found in chapter “Technical data” on
page 63.
Make sure there is lifting equipment available which can handle the weight of the
dishwasher and that the floor where it is to stand is dimensioned for the weight of
the dishwasher when containing water, granules and the wash load. The ma-
chine’s weight can be found in chapter “Technical data” on page 63.
Route connections for water and electricity.
Make sure there is a drain/waste pipe which is positioned as stated above.
In accordance with EN 61000-3-11, the machine is suitable for connecting to a
mains voltage with an impedance of Zmax=0.375 Ω or lower. The maximum im-
pedance must be determined in consultation with the relevant authority prior to
carrying out installation.
R 0.75 m
1 m
1 m
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WD-90 DUO Rev. 1 (201702)
Installation
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3.4 Transport and storage
Always transport the machine in an upright position. On delivery, the machine
comes on a load pallet protected with cardboard. A packing notice will have been
applied to the packaging where the latter covers the front of the machine.
Take care during transport and when moving the machine, as there is a risk of it
tipping over.
If the machine is not to be installed immediately, it must be stored in a dry frost-
free area.
3.5 Unpacking
Check against the delivery note that all the units have been delivered.
Inspect the machine for any transport damage.
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WD-90 DUO Rev. 1 (201702)
Installation
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3.6 Installation
Before positioning the machine at its intended location, make sure you adhere to
the following procedure:
• Check that the overheating protection device has been reset.
• Check that the fuse for the element in the booster heater and tank, FU21/
42, is off (it is in the electrical cabinet inside the right-hand side panel).
• Remove the protective plastic on the sides which are to be stood against a
wall.
• Undo the detergent hose on the back of the machine (See “Detergent
dosage” on page 22.). Hang the hose up so that it can be easily accessed
by the detergent supplier.
• Move the machine into position. There must be a gap of at least 100 mm
between the dishwasher and the walls.
• Adjust the dishwasher to ensure it is standing level – put a spirit level
against the dishwasher rib. Check along three sides (front, right and left) of
the machine that it is standing straight. Adjust the height using the
dishwasher’s legs.
• Check that the gap between the hood and lower part is approximately 5 mm
all around the rib of the machine.
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Installation
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3.6.1 Fitting the condensation unit
On delivery of dishwashers with condensing unit, the condensing unit is folded
down over the hood and secured with protective transport plates.
NB: The dishwasher should be adjusted so that it is standing level when
assembly of the condensing unit starts
1. Undo and remove the upper back panel at the rear of the dishwasher.
2. Loosen and remove the screws (c) that hold the protective transport plate
(b) against the condensing unit (a).
3. Loosen and remove the screws (d) and nuts that hold the protective
transport plate against the brackets at the back of the dishwasher and
remove the protective transport plate (b).
Possibly need to loosen the contact (JM15) on the power cable to the
condensing unit.
4. Lift into upright position the condensing unit (weight approximately 25 kg)
so that it can be attached to the brackets (item no. 5 in the diagram below)
at the back of the dishwasher.
The condensing units should not be pulled but lifted into place so that the
sunken seal high up on the back of the dishwasher is not damaged or
warped.
5. Attach the condensing unit to the brackets (item no. 5 in the diagram below)
to the dishwasher with the help of the screws which were removed
previously.
Check that the condensing unit is perfectly level.
Tighten the screws.
a
b
b
c
c
d
d
25-4-01-008