Fagor Brandt HERAKLES LA3P 001UK-0306 User manual

HERAKLES
Dishwashers

THE HERAKLES DISHWASHER
Technical Training
CONTENTS
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LA3P-HERAKLES-001UK-0306
1 - THE ENERGY LABEL..............................................................................................................................................4
1.1. - What you must know.........................................................................................................................................4
1.2. - Consumption level of the main appliances*......................................................................................................4
2 - THE DISHWASHER .................................................................................................................................................5
2.1. - The customer's expectations ............................................................................................................................5
2.2. - The advantages of the dishwasher...................................................................................................................5
2.3. - The sound level.................................................................................................................................................5
2.4. - The drying .........................................................................................................................................................5
2.5. - Operating principle............................................................................................................................................6
3 - WATER.....................................................................................................................................................................7
3.1. - The noxious effects of limestone ......................................................................................................................7
3.2. - The water softening: a vital function .................................................................................................................7
3.3. - The regeneration...............................................................................................................................................7
3.4. - The pH (hydrogen potential) .............................................................................................................................8
4 - THE DETERGENTS .................................................................................................................................................9
4.1. - The products .....................................................................................................................................................9
5 - HERAKLES PROGRAMMINGS ............................................................................................................................10
5.1. - Multi-LED display (E1) ....................................................................................................................................10
5.2. - 3-digit display ( E2) .........................................................................................................................................11
5.3. - LCD display(E4)..............................................................................................................................................12
6 - GETTING STARTED AND USING THE HERAKLES DISHWASHER..................................................................13
6.1. - Installing and getting started...........................................................................................................................13
6.2. - Adjusting the regeneration..............................................................................................................................15
6.3. - Filling the salt tank ..........................................................................................................................................15
6.4. - Filling the tank with rinsing agent....................................................................................................................16
6.5. - Filtering and cleaning......................................................................................................................................16
6.6. - Deferred Start or End......................................................................................................................................17
6.7. - The programs possible ...................................................................................................................................18
6.8. - Filling the dishwasher .....................................................................................................................................19
6.9. - The detection of dirt during the cycle..............................................................................................................21
6.10. - The regeneration.............................................................................................................................................22
6.11. - HHydraulic circuit of the technical zones ........................................................................................................23
6.12. - The three modes of drying..............................................................................................................................26
7 - THE MAIN COMPONENTS....................................................................................................................................27
8 - MAINTENANCE .....................................................................................................................................................32
8.1. - The test program.............................................................................................................................................32
8.2. - Diagram of a model with simultaneous spraying and drying by condenser......................................................35
8.3. - Diagram of a model with simultaneous spraying and fan-assisted drying .......................................................36
8.4. - Diagram of a model with alternate spraying and fan-assisted drying ..............................................................37
8.5. - Checks and measurements at the power board terminals .............................................................................38

THE HERAKLES DISHWASHER
Technical Training
THE DISHWASHER
CU3P-CDC-003-02/05
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1 - THE ENERGY LABEL
1.1. - What you must know
Washing machine, dryer and dishwasher are three
appliances likely to weigh heavy on the electricity invoice if
you choose model poorly classified from the energetic
point of view. Washing machine and dishwasher each
consume about 250 kWh a year. For a few years, the
manufacturers have made efforts on the water
consumption, which has a direct effect on the power
consumption at the moment of the heating.
Initiated by the European Community, this labelling is now
compulsory in France for most household electrical
appliances. The classification from A(the most
economical) to G(the most avid on electricity), enables the
consumer to locate at a glance, the various models
proposed.
For washing machines, an additional indication concerning
the wash and spin, complements the information
concerning the power consumed.
This mention must appear compulsorily on all the
dishwashers marketed from the 1st of January 2000.
The “Bio” program is selected to laboratory tests.
1.2. - Consumption level of the main appliances*
Dishwasher
Energy
Manufacturer
Model
More efficient
Less efficient
Washing performance
(dB(A) re 1 pW)
Noise
Further information is contained
in product brochures
Norm EN 60456
LOGO
Energy consumption
Actual energy consumption will
depend on how the appliance is used
kWh/cycle
A: higher G: lower
Capacity (place settings)
Water consumption
1 2 3A B C
Dishwasher label Directive
Drying performance
A: higher G: lower
(In accordance with programme
recomanded by the manufacturer)
Dryer (150 uses)
Electric hob
Dishwasher (220 uses)
Chest freezer
Electrical oven
Washing machine (200 uses)
Refrigerator
Television
Microwave oven 800W
Iron
Vacuum cleaner
A good use of the deferred start causes you to benefit by off-peak periods
and, therefore, to save electricity.

THE HERAKLES DISHWASHER
Technical Training
THE DISHWASHER
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LA3P-HERAKLES-001UK-0306
2 - THE DISHWASHER
2.1. - The customer's expectations
•Perfectly clean dishes
•Dry dishes
•Sparkle of glasses and stainless steel
•Respect of delicate dishes
•Rapidity
•Easy to use
•Low sound level
•Low consumption (water, electricity and products)
2.2. - The advantages of the dishwasher
A family of four persons devotes 55 minutes a day on average to do dishes, against 20 minutes when
it has a dishwasher.
The cost of a dishwasher is written off in only 3 years and its estimated lifetime is approximately 10 years.
Washing up in machine is much more hygienic because dishes are perfectly washed and dried
without contact with external elements (towels, hands or work surface), which often convey a number
of bacteria.
HERAKLES 0.25 € DISHES DONE BY HAND 0.88 €
Water (12 liters) 0.03 €Water (70 liters) 0.18 €
Energy (0.75 kWh) 0.08 €Energy (4.8 kWh) 0.53 €
Detergent product 0.10 €Detergent 0.14 €
Rinsing product 0.01 €Accessories 0.03 €
Salt 0.03 €
Annual cost 91.25 €Annual cost 321.20 €
2.3. - The sound level
Noise remains a selection criterion essential despite the fact that indicating it on the "Energy Label" is
not compulsory.
For the HERAKLES dishwasher, the level is comprised between 41 and 50 decibels (dB). It must be
known that a variation by 3 decibels multiplies by two the sound volume and this is only below
50 decibels that the dishwasher can be operated late at night.
To achieve this result, several improvements have been made to the ATLANTIS dishwasher:
•PTC and double auxiliary winding for certain asynchronous cycling pumps
•Reinforced acoustics (double-thickness bitumen, felts, phonic seals)
•Passage of the entire spraying circuit in the tank.
2.4. - The drying
The drying result is an important point that appears on the "Energy Label".
The HERAKLES dishwasher proposes 3 marks for the drying (A/B/C), according to the dishwasher
level of equipment.
.

THE HERAKLES DISHWASHER
Technical Training
THE DISHWASHER
CU3P-CDC-003-02/05
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2.5. - Operating principle
Dirt adheres to dishes with a certain energy that is to be overcome to get rid of it. It is, therefore,
necessary to implement the following actions:
¾The mechanical action (aspersion)
Its purpose is to project the detergent bath onto dishes to remove and drag the dirt.
The ATLANTIS dishwasher is provided with 4 spraying levels:
•Two that spray the lower and upper baskets
•A third one, multidirectional (small shower) attached to the tank ceiling prevents residues from
depositing on the tank ceiling and falling during drying
•A fourth one, carried out using a rotary nozzle assembled to the lower winch in certain models, is
used to better clean the bottom of saucepans (it is associated to a specific program).
Spraying the dishes is performed by the winches, which turn simultaneously or not (alternate spraying)
under action of the water pressure in spraying nozzles. The water thus projected onto dishes falls in
the tank bottom where it is purified by flowing through four filters. These filters perform continuous
recycling of the detergent solution until cycle end.
The water is then returned, pressurized, by the circulation pump (approximately 50 liters / minute) into
the spraying arms. Such a circulation and the low volume of the cycling unit volume (1.85 liters) are
used to have a total water consumption relatively low (12 liters), as each piece of dishes is washed by
only one volume of water (approximately 4 liters).
After wash, the wastewater is evacuated, the clear water, cold for the first rinse rinses dishes, and
then a second rinse, hot, precedes the drying.
¾The thermal action
The progressive temperature rise and the achievement of an enzymatic dwell at 50°C are used to
obtain the best conditions of elimination of all the types of dirt. Actually, the action of the various
components of detergent products varies according to the bath temperature.
¾The chemical action
When dishes are done in machine, the mechanical action is limited (as compared with dishes done by
hand), and must therefore be compensated for by a more powerful chemical action.
To the mechanical and thermal energy of the machine are added the physical-chemical and biological
actions of the detergent.
As the nature of dirt is very varied, it is not always eliminated in the same way.
This is the reason why detergents contain very different components and, in particular, enzymes.
¾The duration.
All is not as simple. If we detail the operation, we remark that an essential element is missing: the
water. Actually, without water, there is no wash! The water will, with the support of active principles of
the detergent, destroy, eradicate, dissolve and emulsify the dirt present on dishes.
It will do so all the better since the machine will water the dishes and heat the water.
The wash result depends, therefore, simultaneously on 4 factors:
•The washing product
•The water
•The temperature
•The mechanics
A good wash result can, therefore, only be obtained if all these conditions are respected.
Spraying arms project onto dishes (mechanical action) a solution of detergent
products (chemical action) progressively heated by a resistor (thermal action)

THE HERAKLES DISHWASHER
Technical Training
THE WATER
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LA3P-HERAKLES-001UK-0306
3 - WATER
3.1. - The noxious effects of limestone
Any water contains traces of minerals, mainly limestone, magnesium and iron originating from the
ground. The higher the content is, the harder the water is. These minerals reinforce the dirt catch to
fabric fibers, and the eliminated one tends to be fastened again to them. Limestone reduces the
efficiency of the washing product, makes the laundry rough, makes whites turn grey, fades colors and
accelerates the laundry wear.
3.2. - The water softening: a vital function
The system water contains soluble calcium hydrogen carbonate. Hot, the calcium hydrogen carbonate
decomposes and gives insoluble calcium carbonate (fur).
The water softening is, therefore, a vital function.
This is the reason why all dishwashers are fitted, from the
origin, with water softeners.
Softening is, in fact, the substitution of calcium ions
contained in the system water by sodium ions contained in
the salt.
To perform this substitution, the water is circulated in the
heart of the softener that contains small balls of synthetic
resin.
Combined with sodium, this resin sets the limestone particles
(calcium or magnesium) contained in the system water. To
do so, the resin exchanges its sodium ions for the calcium
ions.
After a certain number of fillings, resins are more or less
saturated with limestone and start becoming ineffective to
soften the water. It is then necessary to regenerate them.
3.3. - The regeneration
To regenerate the resins, it is necessary to eliminate the
limestone from them with sodium (salt).
This regeneration, automatic and "floating" on "all
electronic" ATLANTIS dishwashers, is initiated by the board
according to the adjustment performed on the putting into
service and to the number of filling baths already performed.
SOFTENER
Resin
Water
+
Calcium &
magnesium
Softened
water
+
sodium
Saturated resin
Water
+
Calcium (Ca)
and
magnesium
SALT
Water WATER
+
SALT
Water
+
Ca

THE HERAKLES DISHWASHER
Technical Training
THE WATER
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3.4. - The pH (hydrogen potential)
Maybe, you have already remarked on labels of cleaning products or drinks the pH indication followed
by a number. Maybe, you know that the pH is related to the acidity of a solution, sometimes verifiable
by its taste. If you taste successively lemon juice, coffee and water, you will be able without any
difficulty to rank these three liquids by level of acidity.
10141312111098765432
Acid Neutral Basic
Chlorydric acid Coca-cola Vinegar Beer Milk Sea water Concentrated Bleach Sink caustic cleaner Tape water
The pH paper is used for approximate, simple and rapid determination of the pH of a solution.
This paper, which does not provide exact determination of a value of pH, rather gives an idea of the
pH range of the solution, namely:
•Acid for a pH smaller than 7
•Neutral for a pH equal to 7
•Basic or alkaline for a pH greater than 7
Water, mineralized or not (and, therefore, salt water) has a pH very close to 7.
3.4.1. - A few acids
•Vinegar (acetic acid)
•Aspirin (acetylsalicylic acid)
•Lemon guise (citric acid)
•Coffee
•Vitamin C (ascorbic acid)
•Dishwasher rinsing product
3.4.2. - A few bases
•Household cleaning products (ammonia)
•Soap (potassium hydroxide)
•Concentrated bleach
•Sink caustic cleaner (sodium hydroxide)
•Detergent products for washing machine and dishwasher
Alkaline pH is necessary for the washing bath to ensure maximum efficiency.
3.4.3. - Analysis of traces or deposits on dishes
Replacing a component supposed defective does not constitute the essentials of the maintenance of
a dishwasher. A dishwasher, for which the consumer signals a bad wash result, cannot be repaired so
easily. Actually, to solve this type of claim, it will always be necessary to precisely identify the nature
of the trace or residue present on the piece of dishes. Only this precise identification can indicate us
the probable cause at the origin of the defect.
The matter is not to precisely measure the pH but simply to detect the origin of the white traces or of
the residues.
So, when the paper turns red we are in the presence of an acid solution (rinsing product for example),
if it turns blue, then it is an alkaline solution (washing product).
Red Blue
Green

THE HERAKLES DISHWASHER
Technical Training
THE WATER
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LA3P-HERAKLES-001UK-0306
4 - THE DETERGENTS
4.1. - The products
4.1.1. - The detergents
Contrary to many received ideas, all detergents are not identical. They contain specific ingredients. So
each type of detergent has its own features and will be particularly suited to such or such type of wash
or of dishes.
•Detergent products are alkaline.
•They have, therefore, a pH comprised between 9 and 11.
•They are classified IRRITATING.
¾The powder
It is perfectly efficient under difficult wash conditions (very hard water or very dirty dishes) and is
suitable for washing silver and decorated glasses.
¾The tabs
The dosage ease certainly explains the development of their market share. The dissolution time can
vary from 10 seconds to over 10 minutes. When selecting a fast or short program, it's better to use
powder.
¾The liquids
It is particularly more suitable for fragile dishes and respects the decoration.
4.1.2. - The rinsing product
It enables water to flow more rapidly and more completely from dishes, so preventing the formation of
traces during drying. It neutralizes alkaline residues of the detergent during the final rinse and favours
the drying of dishes. Its acid pH is comprised between 1 and 3. It must be compatible with the
detergent (it is preferable to keep the same product trademark).
4.1.3. - The regenerating salt
It is used to regularly regenerate the water softener resins. It protects the appliance and dishes from
layers of sediment. Its pH is neutral and equal to 7.
4.1.4. - The "all-in-one" products
New products integrate in one and the same dose the 3 functions essential to the right operation of
the dishwasher:
•The wash function
•The salt function
•The rinse function
In cases of hard and very hard water (hardness greater than 35°TH), it is indispensable to use
regenerating salt. Some manufacturers specify that the wash must be done at 50°C maximum under
penalty of freeing too early the various actions of the product and altering the final result, or even
damaging some pieces of dishes.

THE HERAKLES DISHWASHER
Technical Training
GETTING STARTED
CU3P-CDC-003-02/05
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5 - HERAKLES PROGRAMMINGS
5.1. - Multi-LED display (E1)
¾Features
•Pushbutton: On / Off
•Micro-travel buttons:
- Deferred start
This button is also used for adjusting the water softener (display by LEDs)
- Start / Cancel
•Program selector knob:
- Intensive
- Normal
- OptiA 60 minutes
- Eco
- Bio (Energy label cycle)
- Flash 30'
- Soaking
•Indicator lights:
- Lack of salt (possible to actuate or not this indicator light)
- Lack of rinsing liquid (possible to actuate or not this indicator light)
- Alarms
- Access locking
- "3 in 1" tablets (possible to actuate or not this indicator light)
- Display of the remaining time (45' →30' →15' →END)
- Deferred start, 3, 6 and 9 hours
•Anti-leak float
¾Performance
•"Energy Label" marks
- Energy : A
- Washing : A
- Drying : A(Condenser)
•Consumption for the standardized cycle (" BIO " program with 12 place settings)
- Water : 16 litres
- Electricity : 1.05 kWh
- Time :145 minutes

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Technical Training
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LA3P-HERAKLES-001UK-0306
GETTING STARTED
5.2. - 3-digit display ( E2)
¾Features
•Pushbutton: On / Off
•Micro-travel buttons:
- Deferred start
This button is also used for adjusting the water softener (2-digit display)
- AQUACLEAN program (Dishwasher cleaning cycle)
- Start / Cancel
•Program selector:
- Intensive
- Normal
- OptiA 60 minutes
- AUTO
- Eco
- Bio
- Flash 30'
- Soaking
•Indicator lights:
- Lack of salt (possible to actuate or not this indicator light)
- Lack of rinsing liquid (possible to actuate or not this indicator light)
- Alarms
- Access locking
- "3 in 1" tablets (possible to actuate or not this indicator light)
- AQUACLEAN
•3-digit display unit:
- Display of the remaining time
- Start deferred by 1 to 12 hours
- Softener adjustment
•Anti-leak float
¾Performance
•"Energy Label" marks
- Energy : A
- Washing : A
- Drying : A(Fan)
•Consumption for the standardized cycle (" BIO " program with 12 place settings)
- Water : 14 litres
- Electricity : 1.05 kWh
- Time :140 minutes

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Technical Training
GETTING STARTED
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5.3. - LCD display(E4)
¾Features
•Capacitive keys:
- + / - for adjusting the deferred start
- AQUACLEAN (Dishwasher cleaning cycle).
This button is also used for accessing a dishwasher adjustment menu.
•Micro-travel button: Start (1 short actuation) / Cancel (1 actuation for two seconds)
•Pushbutton: On / Off
•Buzzer
•Program selector:
- Cyclone (special program for sauce-pans on models fitted with arm with rotating nozzle)
- Normal
- OptiA 60 minutes
- AUTO
- Eco
- Bio
- Flash 30'
- Soaking
•Indicator lights:
- Lack of salt (possible to actuate or not this indicator light)
- Lack of rinsing liquid (possible to actuate or not this indicator light)
-"3 in 1" tablets (possible to actuate or not this indicator light)
- AQUACLEAN and other programs
- Deferred wash
•LCD screen:
- Program run
- Display of the current time
- Display of the remaining time
- Display of deferred-end time
- Access locking
- Alarms
- Adjustment of the softener and "menu" mode (LCD brightness, "Beep" of end, language…)
•Anti-leak float
•Aqua Stop pipe
¾Performance
•Best noise level: 45 dB(A)
•"Energy Label"
- Energy : A
- Washing : A
- Drying :
A(Fan)
•Consumption for the standardized cycle (" BIO " program with 12 place settings)
- Water : 12 litres
- Electricity : 1.05 kWh
- Time :140 minutes

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Technical Training
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LA3P-HERAKLES-001UK-0306
INSTALLATION
6 - GETTING STARTED AND USING THE HERAKLES DISHWASHER
6.1. - Installing and getting started
6.1.1. - Levelling
Adjust the height of the four feet using a screwdriver so as to
get incline smaller than 1 cm.
Install the soundproofing flap after adjusting its
height (by cutting it) so that it touches the floor.
Other soundproofing gaskets are also provided to
be stuck between the appliance and the working
surface or contiguous pieces of furniture.
6.1.2. - Water inlet
Pipe length: 1.50 m maximum
Tap flow rate: 10 litres / minutes minimum
CAUTION: connection to self-piercing tap possible
If the opening diameter is 6 mm minimum and the flow rate is sufficient.
Diameter of the threaded fitting: 20/27
Pressure : from 1 to 10 bar
Hot-water connection :
The dishwasher can be fed with hot water (60°C maximum), this is used for decreasing the heating
time and the cycle duration. This option is advantageous if hot water is very cheap (solar water
heater) and if the pipe allows so (red marking).
•Simple pipe reinforced or not.
•Pipe with Aquastop:
-Electrical: the filling solenoid valve is built in the pipe. In the event where the pipe (protected
by a sheath) is leaking, the water is directed to a float (in chassis bottom), which cuts off the
power supply to solenoid valve and informs the electronics.
-Mechanical: a mechanism, actuated by a sponge, blocks the water inlet if the pipe (protected
by a sheath) happens to leak (it operates with the dishwasher powered on or off).
6.1.3. - Electrical connection
The dishwasher must be connected to a wall outlet with ground connection. This wall outlet must be
protected by a 10 A fuse and must remain accessible. No extensions, multiple sockets or electrical
deferred programr must be used.

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Technical Training
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INSTALLATION
Retirer l’obturateur
du si
p
hon
60 à 120 mm
28 cm mini
100 cm maxi
100 cm maxi
6.1.4. - Evacuation of waste waters
The installation must be "fan-assisted" and
the inner diameter of the evacuation conduit
must be at least 38 mm. Draining must be
performed at a height comprised between 28
and 100 cm from the floor.
The draining pipe (1.5m) can be extended up
to 3 metres maximum.
Attention must be paid for the
pipe not to be pinched or
elbowed, which may happen
when the dishwasher is built-in.
6.1.5. - Installing under working surface
It is possible to slide the dishwasher under a working surface after
removing the top as follows:
Install the soundproofing flap (delivered together with the dishwasher) after adjusting its height (by
cutting it) so that it touches the floor.
Other soundproofing gaskets are also provided to be stuck between the
appliance and the working surface or contiguous pieces of furniture.
Once it is level, screw the appliance front bracket in the working surface.
REAR
REAR
FRONT

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Technical Training
BASIC SETTING
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21
6.2. - Adjusting the regeneration
The factory adjustment corresponds to tap water hardness comprised between 40 and 55°F (or °TH).
If the hardness is different, then it is necessary to
correct the regeneration adjustment, in order to
obtain washing without traces.
For this purpose, use the test strip delivered together
with the detergent sample or the dishwasher, consult
the table below and follow the setting procedure
described in the dishwasher manual.
Caution: the measurement scale can be different from one
strip trademark to another
100 strips: 43X9782
3 strips: 43X9783
Small measurement box: 74X0826
Large measurement box: 31X4037
6.3. - Filling the salt tank
If necessary and depending on the hardness or the type of detergent
used, fill the salt tank (using the supplied funnel) with special
dishwasher regenerating salt. Top up with water up to the tank edge
on the first use.
In the case where it is not necessary to use salt (hardness
< 10°F or use of detergent integrating the salt action), it is however
necessary to entirely fill the tank with water on the first appliance
commissioning.
Pick up the salt grains fallen in the tub, and if necessary perform
soaking to rinse the tub.
Perform filling again, if necessary, each time the information of salt
lack appears on the strip.
After a new filling, the "Salt lack" indication may remain illuminated
until salt has entirely dissolved.
It is possible to deactivate the salt level indication (use of 3-in-1
detergent or softener set to 0).
3 4

THE HERAKLES DISHWASHER
Technical Training
BASIC SETTING
CU3P-CDC-003-02/05
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6.4. - Filling the tank with rinsing agent
Fill the tank located in the inner door, each time
the product lack information appears on the strip.
Wipe the possible overflows to avoid foam effect
during next cycle.
Adjust, if needed, the distributed dose according
to the drying result obtained after the first cycles.
Increment the adjustment (position 2 on
manufacture) if the drying result is not correct.
It is possible to deactivate the indication of
rinsing agent level (use of 3-in-1 detergent with
hardness < 40°TH).
6.5. - Filtering and cleaning
Filtering is performed in suction (European standard). So, it is efficient throughout the cycle.
Four filtration levels are ensured through:
•A waste filter with 2 filtration levels (turn it by 1/4 turn to unlock it)
- a conical section in plastic (non removable) to recover big waste
- a cylindrical section in plastic, which lets thinner waste go through
•A main filter in stainless steel
•A micro filter in Nylon or stainless steel
Some models offer in addition a specific cleaning cycle named "AQUACLEAN", which is recommended
to carry out approximately every 3 months, with special dishwasher cleaning agent.
Black marker = Maxi filling
1
1
2
2
3
3
All the filters are very easily
removable by the user for
cleanin
g
.
1
3

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Technical Training
USE
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LA3P-HERAKLES-001UK-0306
6.6. - Deferred Start or End
6.6.1. - Deferred start or end
It is possible to start a cycle in "Deferred start" or "Deferred end" depending on the dishwasher
programming level.
•E1 programming: "Deferred start" by 3, 6 or 9 hours
•E2 programming: "Deferred start" from 1 to 12 hours
•E4 and E5 programming: "End-of-cycle" time

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Technical Training
FUNCTION
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6.7. - The programs possible
90 minutes
Washing at
70°C
2 rinses
of the
cycling unit
Rinse at
70°C
+
cycling Natural
drying
15 minutes
30 minutes
145 minutes
Standardized
cycle
130 minutes
90 minutes
60 minutes
90 - 110
minutes
130 minutes
Average
duration
The "3-in-1", option that is used for taking advantage of all the possibilities of these pellets, modifies the run of wash cycles (except for the "Flash 30 minutes").
A
second cold rinse is systematically carried out and the temperature of the last hot rinse is also modified in order to
guarantee the drying.

THE HERAKLES DISHWASHER
Technical Training
USE
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EV
Carte de
puissance
Pompe
de cyclage
Flotteur
Bras de cyclage
Tunnel
chauffant
Filtres
I.L.S.
6.8. - Filling the dishwasher
¾Check of level (L) by a float
The beginning of a washing cycle always starts with
draining alone down to lowest level plus
10 seconds (→L0 +10").
Next, the valve is supplied and the information on the level state
(hydraulic unit empty and then full) is given to the power board by
a flexible-blade switch (FBS) attached to the hydraulic unit. A
magnetized float located in a well of the hydraulic unit acts on the
FBS.
A first filling phase (0.85 litre) is performed statically,
that is, without supply to the cycling pump, thus, without
rotation of spraying arms.
It is possible to check level L1 in the
hydraulic unit.
On the other hand, as next filling phases
are linked together, this check can only be
performed during the test program (step 4):
On completion of the first filling and after
removing the filters, the water level is
seen at the height of the flange vent
located above the temperature probe
(N.T.C.).
¾Measurement of the filling and
then topping up time
During the first filling step, the board measures the
duration to reach level L1 (information given by the FBS
and the float). According to this duration, the board
computes a chronometric filling duration to top up with
water.
This second filling step is carried out in a linked way
and always without cycling.
Its duration depends on the selected program, the
current step, and the type of dishwasher. Therefore, the
water level reached after topping up cannot be checked.
Level of the water
in cycling block
Flange vent
Cycling arm
Powe
r
board
SV
FBS
Filters Cycling
pump
Heating
tunnel
Float
Cycling arm
Powe
r
board
SV
FBS
Filters Cycling
pump
Heating
tunnel
Float
Cycling arm
Powe
r
board
SV
FBS
Filters Cycling
pump
Heating
tunnel
Float
Calcu-
lated
time

THE HERAKLES DISHWASHER
Technical Training
FUNCTION
CU3P-CDC-003-02/05
- 20 - LA3P-HERAKLES-001UK-0306
¾Measurement of the cycling pump current and keeping of the power supply to solenoid
valve
The third and last filling step is carried out dynamically,
that is by supplying the cycling pump.
As soon as this pump starts, the various spraying circuits
of the appliance fill. The pump starts and due to the lack
of water, the current it absorbs varies rapidly.
The valve is supplied until the current consumed by the
cycling pump is stabilized. This is used for reaching a
level suited to the dishwasher needs at a precise moment
(even in case of overturned bowl).
¾Monitoring of the current consumed by the pump
Before definitely cutting off the power supply to solenoid
valve, the power board carries on monitoring the current
consumed by the cycling pump for the next 5 minutes.
This is used for topping up with water again, if need be, in
the case of a container that overturns, for example.
This water level management principle is used for having
very precise filling perfectly suited to the dishwasher needs (pump and hydraulic circuit, loading and
type of dishes, water pressure and inlet flow rate)
¾Safety devices and "security mode" of the filling
•Level L1 not reached after 2' approximately:
The board supplies then the cycling pump and checks the current consumed.
- The latter greatly varies, as the hydraulic unit is empty
(tap closed, very low flow rate < 0.5 l/min, draining stick fallen)
►the cycle is stopped
►the warning light lights on (fault d01)
►it is necessary to press the "start" key to restart it
- It is stable as the hydraulic unit is full (no detection as float blocked)
►the cycle carries on normally and the intake of water continues with the dynamic filling and
the monitoring of the current consumed by the pump
.
•Level L1 reached within 15" approximately:
Hydraulic unit not empty at cycle beginning, following incorrect draining
- the current cycle is modified to perform draining alone again to L0 +10"
- this draining will be performed only once before repeating the first filling phase
Spray arm
Powe
r
board
SV
FBS
Filters Cycling
pump
Heating
tunnel
Float
Current
analysis
Cycling arm
Powe
r
board
SV
FBS
Filters Cycling
pump
Heating
tunnel
Float
Current
analysis