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COMBI-DISHWASHER WD-12S (translation of the original documentation) Read the manual before using the machine! Installation and user manual S/N: (En) Valid from: 202103 Rev.:...
WD-12S Rev. (202103) 1. General instructions ................ 1 1.1 Symbols used ....................2 1.2 Machine rating ....................3 1.3 Checking that the machine and manual correspond ........3 1.4 EU Declaration of Conformity ................4 2. Safety instructions ................5 2.1 General information ..................
WD-12S Rev. (202103) General instructions 1. General instructions Read the instructions in this manual carefully as they contain important information regarding the correct, effective and safe installation, use and servicing of the machine. Service personnel should have access to all documentation for the machine.
WD-12S Rev. (202103) General instructions 1.1 Symbols used This symbol warns of situations where a safety risk may arise. The instructions given should be followed in order to prevent injury and dangerous situations. This symbol on a machine part warns of electrical equipment. The machine must be entirely non-live during servicing, turn off the power at the power switch and if required, the switch should be locked to prevent unintentional operation.
WD-12S Rev. (202103) General instructions 1.2 Machine rating 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 information on the plates is also included on the machine's wiring diagram. The...
WD-12S Rev. (202103) General instructions 1.4 EU Declaration of Conformity A so-called EU Declaration of Conformity is provided on delivery of the machine. CE_16_2 Contact details of the manufacturer (Wexiödisk AB, Mårdvägen 4, SE- 35245 Växjö, SWEDEN, Tel.: +46 470 771200, Fax: +46 470 23752, E- mail: wexiodisk@wexiodisk.com).
WD-12S Rev. (202103) Safety instructions 2. Safety instructions Read the chapter GENERAL INSTRUCTIONS carefully before starting work. 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.
Warranty repairs must be performed by an authorised company. Contact an authorised service company to draw up a programme of preventive care and maintenance. For authorised service companies, please see www.wexiodisk.com or contact Wexiödisk AB. • The regular checks described in the manual must be carried out in accordance with the instructions.
WD-12S Rev. (202103) Safety instructions 2.5 Operation Be very careful around the machine when it is in operation. 2.5.1 High temperatures • The temperature of the washing and rinsing water is 60° C and 85°C. Do not open the machine until the rinsing phase has finished. The steam that comes out of the machine after the wash has been completed is hot.
WD-12S Rev. (202103) Installation instructions 3. Installation instructions Read the chapters GENERAL INSTRUCTIONS and SAFETY INSTRUCTIONS carefully before starting work. 3.1 General information 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 located in the plastic folder behind the front panel of the machine.
WD-12S Rev. (202103) Installation instructions 3.2.3 Power supply Power supply connections are made by qualified personnel in a way that complies with local and national regulations. The machine’s capacity requirements are stipulated in TECHNICAL SPECIFICATIONS. 3.2.4 Water Water connections are made by qualified personnel in a way that complies with local and national regulations.
WD-12S Rev. (202103) Installation instructions 3.3 Transport and storage Always transport the machine in an upright position. Take care during transport, as there is a risk of tipping. N.B! The machine must not be transported without a pallet or other support. Some form of support beam must always be used along the sides of the machine during transport.
WD-12S Rev. (202103) Installation instructions 3.4 Installation 3.4.1 Preparing for the installation Check that there is sufficient room for the machine at the installation location. • Check that correct connections are available for water, electricity, drainage and possibly steam at the installation location. See TECHNICAL SPECIFICATIONS.
WD-12S Rev. (202103) Installation instructions 3.5 Connections 11563 Electrical connection Alternative electrical connection Standard machine: Hot water connection Machines with ECO flow (option): Cold water connection Machines with ECO flow (option): Hot water connection Drain/waste pipe connection Drain pump (option)
WD-12S Rev. (202103) Installation instructions 3.5.1 Electrical connection Information about electrical connections is available on the machine’s wiring diagram which is provided on delivery. Store the diagrams in the plastic pocket, located in the electrical cabinet, even after installation. •...
WD-12S Rev. (202103) Installation instructions 3.5.3 Drain/waste pipe The waste water system connected to (5) should consist of a 50 mm metal pipe that will withstand mechanical impacts. The drain must run to a floor drain, where its opening must be above the water level.
WD-12S Rev. (202103) Installation instructions 3.5.4 Detergent and drying agent • Check what your machine is equipped with, as this may vary depending on market. The equipment will be roughly set at the factory if the machine is equipped with any of these alternatives. Contact your chemical supplier for a more precise setting.
WD-12S Rev. (202103) Installation instructions 3.5.5 Ventilation The machine’s heat load for the room is stipulated in TECHNICAL SPECIFICATIONS. 3.5.6 Bleeding the booster pump The pump housing must be filled with water before starting the booster pump for the first time. Once the break tank has been filled with water, the booster pump is bled by slackening the bleed screw on the top right-hand side of the pump housing.
WD-12S Rev. (202103) Installation instructions 3.5.7 Bleeding the hood lifting cylinder Hood lifting cylinder bleed screw, located above back edge of hood Close the hood. Unscrew the bleed screw a couple of turns. Push the hood up and down until only water (N.B.! Not air) comes from the cylinder.
WD-12S Rev. (202103) Installation instructions 3.5.8 Adjusting the hood pressure switch Hood function should be checked before beginning installation of the pressure switch. The hood should open and close with a smooth movement. It is important that the machine is evenly balanced for optimal operation of the hood.
WD-12S Rev. (202103) Installation instructions 3.6 Installation and connection of auxiliary equipment and options • Once the machine is in place and has been adjusted horizontally and vertically, the auxiliary equipment can be fitted. • The machine can be equipped with a number of options. Check what your machine is equipped with, which will vary depending on market.
WD-12S Rev. (202103) Installation instructions 3.6.4 Grid basket Removable. 3.6.5 Drain pump May be retrofitted. 3.6.6 Marine design Special machine feet and special connection voltage.
Feed direction: Right to left Feed direction: Left to right • A=Water connection in the bottom of the dishwasher's washing tank on WD-12S. The connection must be fitted with a bottom filter. N.B! No level pipe. • B=Connecting pipe. Cut to a suitable length.
WD-12S Rev. (202103) Installation instructions 3.6.8 Reduced opening height • The machine’s opening height is reduced by either 50 or 100mm. • May be retrofitted. 3.6.9 Autostart • The hood on the machine will close and washing will start when the washing basket is pushed into the machine.
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WD-12S Rev. (202103) Installation instructions Side support for corner-loading 310486 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.
WD-12S Rev. (202103) Installation instructions 3.7 Trial operation Prepare the machine for trial operation with the help of OPERATING INSTRUCTIONS. The instructions describe the measures that must be taken to prepare the machine for operation. 3.7.1 Start-up schedule This should be completed when the machine is started up and used.
WD-12S Rev. (202103) Installation instructions 5. Run a number of washes complete with loads and check: • There are no water leaks • The automatic hood lift's anti-crushing system is working • The water temperatures are maintained • The dishware is clean: N.B.: If the machine is equipped with detergent dosing, this function is...
WD-12S Rev. (202103) Operating instructions 4. Operating instructions Read the chapters GENERAL INSTRUCTIONS and SAFETY INSTRUCTIONS carefully before starting work. This chapter describes what must be done with the machine: • Before washing • How washing should be performed •...
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WD-12S Rev. (202103) Operating instructions Symbol for washing function. After the machine is started, the symbol lights up when the tank is full. The symbol flashes if the water level in the tank is too low. Display for temperature during operation. When checking and setting reference values, the display shows the number for the relevant reference value, e.g.
WD-12S Rev. (202103) Operating instructions 4.1.2 Preparations before filling Check: • That the machine and removable parts have been cleaned. If not – clean them! • That no dirt is in the washer arms’ (14) or in the rinse pipes’ (13) nozzles •...
WD-12S Rev. (202103) Operating instructions 4.2 Washing To reduce the risk of strain injuries, the dishware should be stacked in baskets positioned on the attached auxiliary equipment so that these may be moved along slide rails or rollers. Grid baskets or basket conveyors with grid sections (options) may be used when washing heavy dishware to reduce straining.
WD-12S Rev. (202103) Operating instructions 4.2.2 Changing the washing temperature and washing time The factory setting for the washing temperature is 60°C. The operator can adjust the temperature to between 55 and 70° C. The washing temperature and chemical washing times are set on delivery.
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WD-12S Rev. (202103) Operating instructions All the values are laid out in tables, with each table containing a certain number of rows, one for each value. The table containing the values for the washing temperature and washing times for the different programmes is designated “0.0.”...
WD-12S Rev. (202103) Operating instructions 4.2.3 Positioning of dishware in baskets Depending on what the machine is equipped with, it will be delivered with baskets or a basket conveyor with grid sections (option) or removable grid baskets (option). Machines with a basket conveyor...
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WD-12S Rev. (202103) Operating instructions The blue basket is used for glasses, cups and canteens Basket conveyor with grid sections (option) Washing basket located on basket conveyor with grid sections...
WD-12S Rev. (202103) Operating instructions 4.2.4 Starting washing • For longer periods between washes, the machine should be in the “normal” mode and closed. This ensures the temperature in the machine is maintained. • Check that the detergent is suitable for the items.
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WD-12S Rev. (202103) Operating instructions P0 is a pause mode and is used in the case of prolonged intervals between washes in order to maintain the tank temperature. The hood must be closed. The machine does not start in P0 mode.
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WD-12S Rev. (202103) Operating instructions Washing with pre-wash machine WD-PRM 7 (option) The start-up and washing procedures etc. are the same as for standard washing. See also the manual for WD-PRM6/7.
WD-12S Rev. (202103) Operating instructions 4.2.5 Checking the wash result The dishware should be checked after each wash for: PROBLEMS CAUSES & MEASURES Starch spots • Scraping: Important to remove as much food particles as possible before washing. This also means that the water in the machine Misting does not need to be changed as often.
WD-12S Rev. (202103) Operating instructions 4.2.6 Changing the water To achieve the best possible washing results, it is important that the water is changed daily. For normally soiled loads, the water should be changed after around 30 washes. However, always change the water in the event of foam problems in the tank.
WD-12S Rev. (202103) Operating instructions 4.3 After use – Cleaning HACCP is a preventive inspection system to ensure hygiene requirements are met during the washing process and cleaning of the machine. As a result of its design, the machine meets strict hygiene requirements. Regular, thorough cleaning is also important from a hygiene perspective.
WD-12S Rev. (202103) Operating instructions 4.3.2 Emptying, internal machine rinsing When the machine is switched off, the number of baskets washed is displayed for around 5 seconds. Two horizontal dashes "--” are then shown in the display for 3 minutes. At this point, the machine is still live and emptying and internal rinse cleaning must start within this period.
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WD-12S Rev. (202103) Operating instructions Placing cleaned components in machines with a basket conveyor with grid sections Placing cleaned components in a basket after washing...
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WD-12S Rev. (202103) Operating instructions Machines without a drain pump • Check that the machine is in P0 mode. • Open the hood (5). • Open the basket conveyor (16), grid sections/grid basket (option) and lock in place with the clasp (15) at the back edge of the machine.
WD-12S Rev. (202103) Operating instructions 4.3.3 Daily cleaning Machines with ECO flow (condensing unit) The machine’s condensing battery is rinsed clean automatically when the machine fills and during ordinary use of the machine. Internally The interior of the machine will be rinsed clean when the machine is switched off in accordance with the manual.
WD-12S Rev. (202103) Operating instructions 4.3.4 Cleaning each week or as required Weekly cleaning should be more thorough than daily cleaning. If the information message "IF10" is shown in the display, weekly cleaning needs to be performed. In addition to the daily cleaning measures, clean the machine as per these instructions: •...
WD-12S Rev. (202103) Operating instructions 4.3.5 Operating problems Error messages During operation, various alarms or information messages can appear on the panel’s display. There is a distinction between IF and Er alarms. IF alarms can normally be dealt with by the operator. If there is an Er alarm, the service personnel must be called.
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WD-12S Rev. (202103) Operating instructions CODE CAUSE ACTION IF30 Low water level in the washing tank Check that the level pipe is closed. The alarm can be before washing. reset by pressing 0/1 on the panel. The level pipe's rubber sleeve is leaking.
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WD-12S Rev. (202103) Operating instructions Troubleshooting The following errors can be dealt with by the operator. If the problem persists, contact authorised service personnel. PROBLEMS CAUSE ACTION No indication on the control Power switch is off. Switch on the power switch.
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WD-12S Rev. (202103) Operating instructions PROBLEMS CAUSE ACTION The machine is not cleaning The rinse and wash nozzles are Check and clean the nozzles. properly. clogged with dirt. There is too little detergent. Check the amount of detergent. The hose (“thick”) must be submerged in liquid and the filter in the hose must be clean.
WD-12S Rev. (202103) Technical specifications 5. Technical specifications The manufacturer reserves the right to make changes to the technical data. TECHNICAL DATA Washing pump (kW) 2 x 1.5 Booster heater (kW) 12 / 15 * Tank heater (kW) Booster pump (kW) 0.58...
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WD-12S Rev. (202103) Technical specifications CONNECTION, MACHINE Total connected load (kW) 15 / 18 * Main fuse 400-415 V 3N~(A) ** Max. connection area 400-415V 3N~ (L1-L3, N, PE) Cu (mm²) *** * option ** Other voltages on request *** 3-metre-long cable (outside machine) included WATER, DRAIN AND VENTILATION CONNECTIONS Water quality, hardness (°dH)