usa dishwasher tech. training

8/13/2019 Usa Dishwasher Tech. Training

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Dishwashing Systems

Field Service Training Program


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Dishwashers

WT65

LS14 LS6

WT30


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Sw itch ing ON

Push ON/OFF button; the display shows the user interface

firmware release 3.00

When the customer switches on the machine and the

boiler is empty, the tank filling starts. A flowing message

FILL appears on the display.


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Sw itch ing OFF

Push ON/OFF button; messages on the digital display

disappear and the machine gives out an acoustic beep.

Both microprocessor and all functions in progress are

reset.

! Pay attention: even if switched off, the machine is still under

voltage !


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Stand-By

In stand-by mode the machine is ready but no

wash cycle is selected (e.g. when customer

switches the machine on in the morning and

he starts operating in the afternoon); theenergy consumption is reduced and the

temperature in the area under the tank

decreases.


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Wash Cyc les

Push any Wash cycle button or close the

door/hood after wash cycle selection


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Bo i ler Wait ing Device

The Boiler waiting device allows the rinse cycle to

start only if set boiler temperature btC has been

reached. So:

if the set boiler temperature btC has been reached,

the rinse starts;

if the set boiler temperature btC has been not

reached, the machine continue to wash, increasingthe total cycle time.


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Bo i ler Adjus tment

During the rinse cycle the temperature is

measured in the boiler (boiler temperature), while

the digital display must show the rinse

temperature.

Due to the difference between boiler temperature

and rinse temperature, the shown rinse

temperature is calculated by using the boilertemperature and an adjustmentparameter bAJ.


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Self-c lean ing Drain

4 consecutive Rinse cycles clean all internal

surfaces of the washing chamber, which have

been in contact with dirty recycled water.

Start Video

Under Counter

Start Video

WT65
http://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_clean.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_clean.mov


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Soft Start System

Offers optimum protection of valuable glasses &plates by offering a gentle build up of wash

water pressure


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Components

Solenoid valve

Air Break

Rinse Booster

Pump

Waiting Device

12 liter / 3 gallon

Atmospheric Boiler


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Accessibility

Under Counter Hood Type


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90C/195F

82.5C/180F

time6 sec.

Depending on external conditions watertemperature and pressure)

PRESSURE BOILER present situation

Pressure Boiler Rinse

System

ColdHot


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84C/183F

82.5C/180F

time6 sec.

A way to keep the water temperature constantduring the rinsing cycleNot dependent on incoming water pressure

ATMOSPHERIC BOILER

Atmospheric Boiler Rinse

System


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Atmospheric Boiler Rinse

System


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GRS

Start Video
http://localhost/var/www/apps/conversion/Electrolux%20Guaranteed%20Rinse%20System.exehttp://localhost/var/www/apps/conversion/Electrolux%20Guaranteed%20Rinse%20System.exe


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Easy to Clean

1. Separate washing & rinsing circuits

2. Pressed wash tank means removal of all stagnation points of

food remains & the origin of bacterial proliferation

3. No welded points in contact with water

Rinse Circuit

Wash Circuit


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Easy to Clean

1. Washing chamber without pipes

and sharp edges

2. No screws or protrusions in theareas in contact with washing water

3. New stronger steel basket runners

4. Washing and rinsing arms are

easily removable with incorporated

fixing screw


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HACCP Connections

Configured for ON-SITE HACCP connection

without having to buy other accessories or

special products:

Basic:Add Printer

Integrated:Add cable to link to a PC

New electronic

board for HACCPconnection


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KeyboardsHood Type

Detergent dispenser manual activation

Rinse Aid dispenser manual activation

Rinse Pump manual activation

General Parameters

Factory Parameters


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Manual Activations


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Mode Settings


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Moving Around in Mode

Settings

Next Parameter

Family or Increase

Parameter value

DecreaseParameter Value

Confirm value

and go to nextParameter


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Keyboards

Under Counter Type

Detergent dispenser manual activation

Rinse Aid dispenser manual activation

Rinse Pump manual activation

General Parameters

Factory Parameters


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Manual Activations


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Mode Settings


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Moving Around in Mode

Settings

Confirm value

and go to nextParameter

DecreaseParameter Value

Next ParameterFamily or Increase

Parameter value


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General Parameters

There are two sets of parameters under GeneralParameters:

1. General GEn

2. Counters Cnt


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General Parameters

Parameterlist
http://localhost/var/www/apps/conversion/Manuals%20Tech%20Version/Dishwashers%20&%20Potwashers/Section%203%20-%20Service%20Manual/Dishwasher%20&%20Potwasher%20Service%20Manual%202008.pdfhttp://localhost/var/www/apps/conversion/Manuals%20Tech%20Version/Dishwashers%20&%20Potwashers/Section%203%20-%20Service%20Manual/Dishwasher%20&%20Potwasher%20Service%20Manual%202008.pdf


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External Dispensers

If dEt=181 the detergent dispenser works when the WASHING

PUMP is being activated; at the same time voltage is

supplied between connectors L1-7 & L1-9 (main terminal

box);

If dEt=182 the detergent dispenser works when the LOADINGEV is being activated to re-fill boiler level; at the same time

voltage is supplied between connectors L1-7 & L1-9 (main

terminal box);

If rAi= 61 the rinse aid dispenser works when the LOADINGEV is being activated to re-fill boiler level; at the same time

voltage is supplied between connectors L1-8 & L1-9 (main

terminal box);

If rAi= 62 the rinse aid dispenser works when the WASHING

PUMP is being activated; at the same time voltage is


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External Dispensers


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Factory Parameters

There are ten sets of parameters under FactoryParameters:

1. Factory FAC2. Cycle 1CY1

3. Cycle 2 CY2

4. Cycle 3 CY3

5. Boiler Draining Cycles drn

6. Dishwashing dpa

7. Read Only ron

8. HACCP HCP

9. Configuration CFG

10. Automatic Hood dbG


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Factory Parameters

Parameterlist
http://localhost/var/www/apps/conversion/Manuals%20Tech%20Version/Dishwashers%20&%20Potwashers/Section%203%20-%20Service%20Manual/Dishwasher%20&%20Potwasher%20Service%20Manual%202008.pdfhttp://localhost/var/www/apps/conversion/Manuals%20Tech%20Version/Dishwashers%20&%20Potwashers/Section%203%20-%20Service%20Manual/Dishwasher%20&%20Potwasher%20Service%20Manual%202008.pdf


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Factory Setting


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Cycle Setting

Start Video

Under CounterStart Video

WT65

Start Video

LS14
http://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTentry_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTentry_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTentry_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTentry_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTentry_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/HTtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_cycle_set.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_cycle_set.mov


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Cycle Diagram


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dbG Parameters for Automatic

Hood Type Dishwashers

Not Available in North America


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Main Board Configuration

Before changing a main board make sure that the

boiler has been completely emptied!

When installing a new main board it will be necessary

to configure it for the correct model!


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Ls12-ls14 / Wt60-65


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D f lt U d C t


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Default Under Counter

Values

Video for

Under Counter

LS14AH/WT65H
http://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_default.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_default.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_default.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_default.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop_default.mov


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LS14AH/WT65H

Connectors Layout

LS6A/WT30H C t


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LS6A/WT30H Connectors

Layout


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4 ALARM WARNING LEVELS

A: Alarms that will stop the machines operation

B: Alarms to advise the operator which function is not

working properly (without shutting down the machine)

C: Alarms that will stop the machine and recommend the

operator to call an authorized technicianE: Alarms recommending the operator to call an authorized

technician to correct the function not working properly

Fault Diagnosis System


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AAlarms

A 1 Want of water

1. Is the water tap on?

2. Water solenoid operational?

3. Water flow a min of 1.3gpm?

4. Is the water inlet filters clean?

5. Is the overflow inserted?

6. CN2 on main board inserted correctly?

7. Pressure switches operating properly?


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BAlarms

B 1 Drain not efficient

1. Has the siphon spillway been extracted?

2. Drainpipe obstructed?

3. Drain pump rotor blocked?4. Tank pressure switch operating properly?

5. Is the tank breather pipe clogged or constricted?

B 2 Overflow alarm

1. Drain obstructed?

2. Tank pressure switch operating properly?

3. Water Solenoid valve blocked. (E1 - LOAD_EV)?

4. Water Solenoid valve relay welded. (RL8 - LOAD_EV)?


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CAlarms

C 1 Boiler temperature rise too fast1. The boiler may be empty.

2. Boiler level sensor not operating properly.

3. Incorrect heating elements.

C 2 Boiler temperature too high1. Boiler temp changed (btC)

2. Boiler relay welded/melted (see RL2,RL3,RL4)

3. Boiler level sensor not efficient

C 3 Tank temperature too high

1. Software alarm (bh) changed?

2. Water feed above 140 degrees.

3. Tank relay welded/melted (RL5 - Tank_HEAT)

4. Rinse water too hot


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CAlarms

C 4 Tank temperature sensor out of order1. Sensor broken or disconnected (NT1 Tank Sensor)?

2. Temperature sensor connector correctly inserted?

C 5Tank temperature sensor out of order1. Sensor short-circuited (NT1 Tank Sensor)?

C 6Boiler temperature sensor out of order

1. Sensor broken or disconnected (NT2 Boiler Sensor)?

2. Temperature sensor connector correctly inserted?

C 7Boiler temperature sensor out of order

1. Sensor short-circuited (NT2 Boiler Sensor)?


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CAlarms

C 8 During rinse phase boiler doesn'tempty

1. Rinse pump not working properly.

2. Rinse arms obstructed

3. Boiler level sensor out of order

4. Water/condensation in pressure sensor line

C 9 Automatic hood out of order

NOT AVAILABLE IN NORTH AMERICA


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EAlarms

E 1Communication error1. Check connection between Main Bd and User Interface Bd

2. Are connector contacts clean?

E 2Tank temperature low

1. Tank heater not operating efficiently2. Connectors connected correctly?

3. Correct power being supplied to unit?

4. Relay RL5 operating properly?

E 3Boiler temperature low1. Boiler heater/heaters not operating efficiently

2. Connectors connected correctly?

3. Remote Control Switch connected and operation properly?

4. Does RL2 on the Main Board operate properly?


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Wiring Diagram LS6/WT30


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Wiring Diagram LS14/WT65


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Pt1000 Y = 0.25x - 250

010

20

30

40

5060

70

80

90

100

980

1010

1041

1071

1102

1133

1161

1192

1222

1253

1283

1314

1345

1375

Ohm

C

10001080

1380


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Installation & Start Up


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Power Connections


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Water Hardness


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Water Pressure

Electrical Connections


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3 Phase

Click to StartVideo

http://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/ALL_230_3.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/ALL_230_3.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/ALL_230_3.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/ALL_230_3.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/ALL_230_3.mov


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Single Phase

Click to StartVideo

Prearranged Detergent
http://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop&entry_230_1N.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/UCtop&entry_230_1N.mov


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Prearranged Detergent

Connection

Detergent & Rinse Aid


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Detergent & Rinse Aid


Click to Start Video
http://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/ALL_det_ext.movhttp://localhost/var/www/apps/conversion/tmp/scratch_3/Dish%20Washing%20Videos/agg/film/ALL_det_ext.mov


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Dynamic Water Pressure (during filling) 0.83 bar/1244

PSI

Minimum water flow of 1.3gpm

Cold Water Temperature 10-15C/50-59F

Hot Water Temperature 50C/122F Maximum

Earth Ground continuity between main ground terminaland panels


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Check Water Quality

Conductivity 400uS/cm Max

Total Hardness 14fH/8dH/140ppmMax

Chlorides 20 ppm MaxWater Treatment Installed

Reverse Osmosys

Nanofilter

Softener

None


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Appliance Level

Door Operates Properly

Pumps/Motors/Fans Rotation

Rinse Aid/Detergent AdjustmentWorking Temp of Boiler 84C/183F

Working Temp of Wash Tank 68C/154F

Start & Check Complete Wash Programs

Check for Water Leakage

End User Training


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Maintenance

Check wash arms and rinse arms rotation 3Mths

Check control devices and warning displays 3Mths

Check and clean tank water level switch air chamber 3Mths

Check boiler and tank temperatures 6MthsCheck water softener and salt container 6Mths

Descale/delime tanks, boiler, wash and rinse arms 6Mths

Check inlet water pressure 6Mths

Clean inlet water filter 6Mths

Clean solenoid valve filter/flow reducer 6Mths

Check integrity of wiring and electrical parts Annually

Check rinse aid and detergent dispenser Annually

Check hood/doors motion (up-down) 3Mths

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