Electrolux WT 730, WT730TS, WT730WTS, WT760, WT790 Operating Instructions Manual

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Flight Dishwasher

WT 730 WT730TS WT760 WT790 WT 730W WT730WTS WT760W WT790W FT36 FT36TS FT50 FT72 FT36W FT36WTS FT50W FT72W

Contents Page

General product description 3-4 General instructions 4 Safety instructions 5 Technical data 5 Operator information 5-6 Warnings and alarms 6 Manual operation 6-7 ‘HACCP’ function 8-9 Cleaning 10 Curtain assembly 11

DOC. NO.

ST0 12 28-02

EDITION 1 07.2001

Operating Instructions

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General product description

A Feed-in zone B Pre-wash zone C Chemical wash zone 1 D Chemical wash zone 2 E Dishwashing tank 3 F Final rinsing zone G Drying zone H Feed-out zone

1. ’Start & Stop’-button – feed-in/feed-out

2. Curtain 1/1 Wide

3. Signal lamp, red*

4. Signal lamp, green*

5. Emergency stop

6. Curtain, 1/1

7. Paddle, Auto start

8. Drain handle

9. Splash plate

10. Strainer plate

11. Strainer box

12. Rinse system in pre-wash, chemical wash,

dishwashing tank 3

13. Locking, rinse system

14. Curtain, 2/3

15. Rinse system, final rinse

16. Control panel

17. Inspection panel

18. Fine mesh, final rinse zone

19. Strainer plate, feed-in

20. Main switch

* For Normal (not Wide) machines, signal lamps are lo- cated on the top of the electrical cabinet.

Fig 1.

7 6

5 1

17 19

8 18 20

ABC F G H

1313

55-75°C

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General instructions

If the instructions in this and other documentation for the equipment are not followed, it could endanger safety and void the supplier’s guarantee and liability for the product.

• Read the instructions in this document carefully, since they contain important safety information about installation, operating reliability, use and maintenance of the product. Keep these instructions in a handy place so that they are accessible to all users.

• Installation and testing must be carried out by technicians who are trained for such work, and in accordance with the manufacturer’s instructions.

• The product must be installed and connected to the necessary services in accordance with the relevant standards and directives.

• All servicing, maintenance and repairs must be carried out by technicians who are trained for such work. Use only original spare parts. See the Service Instructions* and Spare Parts Catalogue*.

• This product may only be operated and maintained by trained personnel (operators).

* Not supplied. May be ordered from the manufacturer or manufac-

turer’s representative.

General product description

Range of applications This dishwasher is designed for washing porcelain, glasses, cutlery, containers, trays and other kinds of kitchen equipment. It is only to be used with the aforementioned products and must not under any circumstance be used in any other way or for any purpose other than that stipulated in these user instructions.

This dishwasher has been designed to fulfil the highest demands to ensure an excellent working environment and good economy. It also operates at a low noise level and has extremely low heat output. The electronics provide a clear overview of the washing process. The control panel’s display (fig. 2A/B) warns the user if anything is wrong, for example if the temperature or water level is too low, if the pump or fan motor is not working or if any of the machine’s doors are open. If an alarm has been triggered, the red signal lamp will appear (3) (fig. 1).

The machine’s opening measurements:

Normal Wide

660x420 mm 804x570 mm

Each metre of washing belt can accommodate, for example:

Normal Wide

32 large plates, 48 large plates,

48 side plates, 72 side plates,

64 small dishes, 96 small dishes,

2 normal dishwashing racks 2 normal dishwashing racks

16 serving trays 16 serving trays

The machine has two different belt speeds. The higher speed is designed for normal and slightly soiled tableware, while the lower speed is designed for heavily soiled tableware and for materials and shapes that are difficult to dry.

Washing capacity

WT730 Low feeding High feeding FT36 speed speed

Normal plates/hour 1400/1800 2800/3600

racks/hour 84/108 168/216

Wide plates/hour 2100/2700 4200/5400

racks/hour 84/108 168/216

WT760 Low feeding High feeding FT50 speed speed

Normal plates/hour 2500 5000

racks/hour 150 300

Wide plates/hour 3700 7500

racks/hour 150 300

WT790 Low feeding High feeding FT72 speed speed

Normal plates/hour 3600 7200

racks/hour 216 432

Wide plates/hour 5400 10800

racks/hour 216 432

Energy and water consumption

If your dishwasher is equipped with the complete energy saving device ESD, which consists of a water heat exchanger in combination with a condensing plant, surplus heat from both the waste air and the final rinse water is used.

The dishwasher also works with a special water return flow via the water heat exchanger. This means that the amount of water that is replaced, and to which new detergent must be added, only amounts to 100 litres/hour.

Hot water is used when the machine is filling its tanks at the beginning of the washing cycle. During operation a machine equipped with ESD uses only 600 litres of cold water/hour. A machine without ESD uses approx. 320/420* litres of hot water in the final rinse zone.

* Wide model

Each washing zone is equipped with automatic temperature regulation. The water temperature in each dishwashing tank can be read on the panel’s display. The dishwashing tanks are emptied using a handle. The drain closes automatically when the door is closed to ensure that filling of the tanks with water cannot take place when the drain is open. The wash arms can be lifted out so that you can inspect and clean them. The fine mesh in the final rinse zone prevents the DUO ramp’s nozzles from becoming clogged.

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DUO rinsing**

The final rinse operates using ‘DUO rinsing’. The clean, hot water from the booster goes directly to the second of the final rinse’s two rinsing ramps, before being pumped up and then rinsed through the first rinsing ramp. 100 litres of the used rinsing water passes to the dishwashing tank.

** Only in TOP machines.

Built-in safety

At the feed-in/feed-out zones there is a start & stop function(1) and an emergencystop function (5) for both the dishwasher and the conveyor belt (fig. 1). There is also an automatic end limit switch, which stops the belt if clean products have not been removed before the end of the feed-out zone.

CE Directives

This dishwasher is manufactured in accordance with EU directives MD 89/392/EEC ANNEX IIA, EMC 89/336/EEC, LVD 73/23/EEC, std EN-60-335-1 and 60-335-2-58, and is checked to ensure that it complies with CE labelling requirements.

Detergent injectors

Only detergent injectors complying with the relevant directives may be connected to the machine. Detergent injectors must not be connected in such a way that they impair the operation or the safety of the machine.

Warning! Electricity!

Place a sign on the electrical cabinet. The door of the electrical cabinet and other cover panels may only be opened by technicians who are trained for such work.

Safety instructions

• Switch off the power before attempting to rectify faults or operating problems or if tableware becomes stuck or falls into the machine.

• Press the ’From’ button (fig. 2A/B).

• Switch off the ’Main switch’ (20) on the final rinse

tank F (fig. 1).

• If the dishwasher is connected to the mains supply via a fully isolated switch (as recommended by the supplier), the power supply can be switched off using this.

Warning!

• Do not spray water straight at the control panel or nearby.

• If water comes into contact with live components it

could be fatal. Always take care when cleaning close to electrical components.

• Use a damp cloth for cleaning.

For more information refer to the section on Cleaning.

Warning! Crushing risk!

Do not place your hands/arms in the feed-in/feed-out opening or down in the conveyor during operation.

Technical data

The rating plate

which states the dishwasher’s serial number is located at the bottom of the final rinse tank, on the inside of the cover of the electrical cabinet, as well as on the Manufacturer’s Declaration which accompanies the machine on delivery.

Noise level: < 70 dB at 50 m

SABIN

Operator information

• Before working with the product, the operator must

- be fully aware of how to operate and maintain the machine.

- locate each warning sign, understand their purpose, and note where the emergency stop buttons are.

- read the safety instructions and warning texts extremely carefully.

• Read the General Instructions.

Indications, control panel (fig.2A/B)

= On button, with indicating lamp = Off button

= Low speed button, with light-emitting diode (LED) = High speed button, with light-emitting diode (LED) = Display (Message/alarm) = Variable UP/DOWN

(Look through menu/adjust value)

= INFO button (Select menu) = START button(Wash cycle) with light-emitting

diode LED

= STOP button(Wash cycle)

fig. 2B

3 6 8

fig. 2A

3 6 8

7 9

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Before washing (fig.1)

• Ensure that the strainer plates, strainer boxes, rinse system and curtains are in their respective places in the machine. Note that the rinse system must be locked (13).

• The fine mesh (18) must be put into place in the final rinse tank.

• Close the doors. The drain plug seals automatically when the door is closed.

• Switch on the’Main switch’ (20).

• Press the On button and the green indicating lamp

will come on. (fig. 2A/B)

The following message may appear on the panel’s display .

PROGRAM VERSION XXXX-XX-XX XX.X

After around four seconds, the following messages may appear on the panel:

WAIT....

CLOSE DOOR

Close all covers including the feed-in/feed-out and drying zones.

WAIT....

FILLING UP

Make sure that the taps are open and wait for the dishwashing tanks to fill.

WAIT....

HEATING UP

Wait until the temperature has reached the preset value.

WAIT....

READY TO OPERATE

The machine is ready to begin when this message appears.

TIME TO ORDER SERVICE

If this message appears, it is recommended that you call the technical service department.

TIME TO ORDER FULL SERVICE

If this message appears, it is recommended that you call the technical service department.

During washing (fig. 2A/B)

• Press button I for ’Low feeding speed’ and the

red LED indicating lamp will come on. This is used for heavily soiled tableware and for materials and shapes that are difficult to dry. Recommended for the ’HACCP’ function.

• Press button II for ’High feeding speed’, and the red LED indicating lamp will come on.

Used for normal and slightly soiled tableware. Place tableware on the belt.

• Flat plates, side-plates and serving trays are placed on the belt’s lower position. fig. 3

• Deep plates are placed on the upper part of the belt to maintain the correct angle during the washing process, fig. 5

• Cups, glasses, bowls and cutlery are placed in the racks above the conveyor belt.

fig. 3 fig. 4 fig. 5

• When washing 1/1- food container (530x325), you must place it with its wider side facing the conveyor belt’s direction of travel. To make draining easier, 60100 mm must be left between each container. fig. 4.

• Remove any food scraps from plates and trays.

• Rinse the tableware with cold or luke-warm water us-

ing the pre-rinse spray unit.

• Press the START button , to start the feeding system, pumps and the automatic washing program.

The following message may appear on the display :

WASHING (EFF) XXXX(XXX)

• The pumps stop when the preset time has expired. The feeding system will still be operating. The pumps will restart when the tableware reaches the entrance of the machine. If the tableware reaches the ‘End limit switch’ at the end of the feeding system, the following message will appear:

END LIMIT REMOVE CARRIER

• Remove the tableware or racks to resume the washing process.

• Press the ’STOP’ button , and the following mes- sage will appear:

STANDBY... READY TO OPERATE

• Washing will stop, but the machine will still be operating and will retain heat.

• It is more economical to use this function during short washing pauses.

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Warnings and alarms

The dishwasher will give a warning or register an alarm in the event of a function fault or operational stoppage.

FEEDING ALARM XX:XX

FEEDING ALARM indicates that the feeding system has stopped:

• Switch off the machine by pressing the ’OFF’ but- ton on the control panel. (fig. 2A/B)

• Switch off the main switch (20). (fig.1)

• Open the covers.

• Check if anything has become stuck in the machine

and remove it.

• Restart the dishwasher.

In all other cases, call the technical service

department.

END LIMIT REMOVE CARRIER

END LIMIT ALARM indicates that the feeding system has been halted by the end limit switch:

• Remove the tableware or racks from the conveyor belt at the feed-out section to resume washing.

WAIT....

CLOSE DOOR

WAIT....CLOSE DOOR ALARM indicates that one or

more doors are open.

• Check and close all doors and press the ’START’ or ’Start & Stop’ (1) button at the feed-in/

feed-out sections to resume washing.

DISHWASHING TANK X LOW

xx:xx-xx:xx (xx)

TEMPERATURE ALARM indicates that one or more zones are experiencing High or Low temperatures. This registers an alarm for the pre-wash, chemical wash 1 and 2* and power rinse zones*, as well as final rinsing, ESD and drying. The display shows the zone in question, as well as the time and the temperature at which the alarm was given.

• Press the ’STOP’ or ’Start & Stop’ (1) button at the feed-in/feed-out sections to stop the machine in

standby mode. Wait until the machine reaches the preset temperature.

* WT760, WT790, FT50, FT72

WATERLEVEL LOW xx:xx-xx:xx (xx)

WATERLEVEL LOW ALARM indicates that one or more zones has a LOW WATER LEVEL. Stop the machine in standby mode and wait until the dishwashing tanks fill up.

PUMP ALARM xx:xx-xx:xx (xx)

PUMP or FAN ALARM indicates that one or more WASH PUMPS or VENTILATION fans are not working.

• Contact the service department.

DETERGENT ALARM XX:XX

DETERGENT ALARM ** indicates that the DETERGENT HAS RUN OUT.

• Fill up.

CONTACT TIME LOW xx:xx-xx:xx (xx)

CONTACT TIME LOW ALARM ** indicates that the washing contact time is too short.

• Check feeding speed.

S.P. X LOW FLOW xx:xx-xx:xx (xx)

LOW FLOW ALARM ** indicates that the water flow is too low in one or more of the connections.

• Contact the service department.

** Optional

For all other alarms, it is recommended that you the contact the service department.

Manual operation mode (fig.2A/B)

NOTE: Manual operation is not a normal washing program

and should be used ONLY during TEMPORARY interrup- tions, operational stoppages or when filling the machine’s booster during installation or repair.

To start the dishwasher in Manual operation mode, press the START button on the control panel for more than 3 seconds. The LED will start to flash. The flashing LED

indicates that Manual operation is On. In the Manual operation mode, washing and final rinsing are always switched on. In the Manual operation mode, it is also possible to start the machine before the temperature reaches the preset value (Wait for heating up). All alarm functions operate as normal.

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To pause during washing

• Press the ’Stop’ (fig.2A/B) or the ’Start & Stop’(1) button for the feed-in/feed-out (fig.1) sections. The feeding and washing processes will stop, but the machine will still be operating in the ’Standby’ mode and will retain heat.

• If necessary, check and empty the strainer boxes in the dishwashing tanks. You can replace the tank water during a pause in washing. Open the drain, and the tanks will empty. Close the door and the tanks will refill with water.

After washing

Switch off the machine.

• Press the ’Off’ button . (fig.2A/B)

• Open the covers.

• Empty the water by pulling up the drain handle in each

dishwashing tank and final rinse tank.

’HACCP’ function (fig.2A/B)

The dishwasher’s electronics are designed to collect data to ensure safer operation. It registers all deviations and any operational stoppages and makes it possible to identify problems and take action against them. The data collected can be printed out or transferred to a computer (PC). * Optional (contact to PC or printer)

Standby mode (Standby)

In the standby mode, if you press the INFO button first and then the UP/DOWN button, the following menus and information can be accessed:

• Program version

• Temperature (Current and preset value)

• Flow limiter, settings**

• Statistics (Today’s washing)

• Alarms (Today’s washing)

• Time to service.

•’HACCP’ protocols**

Print or transfer protocol to the computer Delete protocol

Washing mode

By pressing the INFO button first and then the UP/DOWN

button, the following information can be accessed:

• Washing efficiency Current Alarm

• Current and limit values for:

Temperature Speed

• Electrical consumption**

• Statistics (Today’s washing)

• Alarms (Today’s washing)

** Optional

Set-up mode

In the set-up mode, by pressing the INFO button &

the STOP button at the same time for more than5 seconds, the following information can be updated:

• Date & Time

• Language

• Process collected data (transfer/delete protocol)

NOTE. For the ’Access code’, contact an authorised serv- ice company.

Select language

The following languages can be selected:

English (English) Swedish (Svenska) German (Deutsch) Italian (Italiano) French (Français) Finnish (Suomi) Dutch (Nederlands) Spanish (Español)

To select a language: (fig. 2A/B)

• Press the ’ON’ button to start the machine.

• Press the ’INFO’ button and the ’STOP’ button

at the same time for more than 5 seconds, and the following message will appear:

SETUP DATE & TIME

• Press the ’INFO’ button once, and the following message will appear:

SETUP LANGUAGE

• Press the ’UP/DOWN’ button , and the following

message will appear:

SELECT SWEDISH

• Press the ’INFO’ button next to the name of the

language, and the symbol  will appear.

• Press the ’UP/DOWN’ button , until the desired

language appears.

• Finally, press the ’INFO’ button to save your

chosen language.

To exit the set-up mode, press the ’OFF’ button.

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Internal cleaning

• Switch off the machine by pressing the ’OFF’ button

. (fig.2A/B)

• Switch off the ’main switch’ (20) (fig.1).

• Open the covers.

• Empty the water and pull up the drain handle (8) in

each dishwashing tank. (fig.1)

• Remove the strainer boxes (11), strainer plates (10)

and rinse thoroughly

• Remove the rinsing system (12), rinse thoroughly and

clean any clogged nozzles. If necessary, loosen the nuts at the end of the spraying tubes and rinse. Screw the nuts back on and tighten securely.

• Remove curtains (2), (6), (14) for cleaning.

• Remove the fine mesh (18) in the final rinse tank (F)

and rinse thoroughly.

• The machine rinses internally to ensure that no deter-

gent or food scraps are left.

• Open the inspection panels (17), remove the strainer

plate and rinse thoroughly.

NOTE! Be particularly careful when cleaning the fine mesh

in the final rinse tank.

External cleaning

• Also clean the equipment’s external stainless steel

surfaces with hot water. If necessary you can also use a neutral detergent, and a soft brush or sponge.

• Wipe the control panel with a damp cloth.

Weekly cleaning

• Clean the inside of the covers by rinsing them with a

hose through the feed-in/feed-out openings or through the cover in the tank next to them.

• Clean the pump strainers.

• Remove the final rinse arms (15) and clean thorough-

ly (fig.1).

If the equipment is not in use

Follow the instructions below if the equipment is not used for a long period of time.

• Switch off the main switch (20). (fig. 1)

• Clean the machine externally and internally, as well

as its detachable parts. See Cleaning.

• Turn off the water supply.

• Open the covers, lids and doors so that air can circu-

late. This prevents mould and odours from developing in a closed environment.

Adjust Time & Date (fig.2A/B)

• Press the ’ON’ button to start the machine.

• Press the ’INFO’ button and the ’STOP’ button

at the same time for more than 5 seconds, and the following message will appear:

SETUP DATE & TIME

• Press the ’UP/DOWN’ button , and the following message will appear:

SELECT 2001 03 08

• Press the ’INFO’ button next to the chosen infor- mation, and the symbol  or  will appear.

• Press the ’INFO’ button once, and the symbol will move to the next option.

• Press the ’UP/DOWN’ button , until the desired time/date appears on the display.

• Finally, press the ’INFO’ button to save your cho- sen time/date.

To exit the set-up mode, press the ’OFF’ button.

Cleaning

Switch off the power before cleaning. NOTE! This machine must not be cleaned with a highpressure cleaner.

Cleaning should be carried out after each day’s use. Use hot water and, IF necessary, a neutral, environmentally friendly cleaning agent and a soft brush or sponge. If other cleaning agents that are designed for various catering products are used, follow the manufacturer’s instructions carefully and observe the prescribed safety recommendations.

NOTE!

Do not use steel wool or abrasive cleaning materials when cleaning stainless steel surfaces. For environmental reasons, cleaning agents that contain chlorine should not be used. If chlorine or chlorine compounds come into contact with stainless steel, they can cause corrosion. As a result, if this kind of detergent is used, you must be sure to rinse the surfaces thoroughly.

Regular cleaning of the dishwasher is necessary if you want to have clean tableware

at the lowest possible cost, which is the aim of all washing.

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Curtains

To balance the steam and the temperature in the dishwasher and to prevent water splashing between different wash zones, insert the curtains correctly as shown in fig. 7A-F. The curtains can only be placed in their correct position due to their design.

Curtain variations (fig.7A-F) 1/1 2/3 1/1 wide

Replacing curtains

Curtains must be replaced when they have become worn. (This is not covered by our guarantee.)

Accessories Dishwashing racks

Brown rack Cutlery Blue rack Glasses* and cups*

Upper wash arms with side rinsing Pins to be placed in the standard belt to help the dishwashing racks to move more easily. * Must not be stacked on top of each other during washing.