SOE100XSOE100A

Electronic Steam Oven

CONTENTS

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1.1 - General principle....................................................................................................................................21.2 - Study of cooking....................................................................................................................................31.3 - The different components.......................................................................................................................61.3 - The steam oven electrical diagram..........................................................................................................81.4 - The electronic board ..............................................................................................................................91.5 - Assistance for dismantling .................................................................................................................... 101.6 Operating Instructions .......................................................................................................................... 121.7 Test Program....................................................................................................................................... 17

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GENERAL PRINCIPLE

1.1. - General principle

An extractable water tank holding one litre is placed in a position on the right hand side of theappliance. The water it contains is propelled intermittently into the cavity by a hydraulic pump.It comes through a duct and changes into steam on reaching the heat produced by the generator.At first, the oven will become saturated with steam and the temperature rises to approximately 100°C.The thermoelectric activator closes the flap valve about 1'30" after the start of the cooking.Once this first phase is over, the production of steam is reduced so as to simply compensate thelosses, and thereby keep the cavity saturated with steam.To avoid condensation forming on contact with any cold areas, a heating cover lines the cavity on fourof its surfaces (those not covered are the bottom and the door). The temperature of the sides is slightlyhigher than 100°C.A ventilation turbine brings about a constant cooling throughout the whole cooking process, and whenthis is over, a thermoelectric activator opens the flap valve, thus freeing the steam, which will bechannelled outside. This flap valve has four holes pierced in it, so that any build-up of pressure in thecavity is avoided. Therefore this cooking principle is not to be compared with that of a pressure-cooker,where the pressure obtained is greater than atmospheric pressure.The appliance is protected from overheating by a safety thermostat (200°C) fitted under the generator.A probe in its immediate vicinity ensures the temperature is adjusted throughout the cooking process.

1.1.1. - The detection of the water level

The detection of the water level consists of a magnetised float incorporated into the tank (the noise thatcan be heard if you shake the tank when it is empty comes from the water level detector) and a card offour I.L.S. When the magnet goes past, the nearest ILS establishes contact informing the power boardabout the quantity of water. The power board sends in return the necessary information forvisualisation. This system also enables to give an indication of the setting and correct position of thetank; for if this is not there, or is not positioned, the level display does not come on.

Power board

Display board Key board

Thermalactivator

Tangentialfan

Magnet Magneticswitchesboard

Flow meter

Pump

Safetythermostat

Generator

Sensor

Heatingcover

Doorswitch

Watertank

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STUDY OFCOOKING

1.2. - Study of cooking

A cooking includes four different stages:

Ø Air saturation with steam - rise in temperature (step 0 and step 1)

This first phase lasts ten minutes. The thermoelectric activator is on and closes the flap valve.The generator heats up for two minutes before the pump is activated.The generator is temperature-regulated by the probe.

Ø Maintaining steam and temperature (step 2)

The pump is powered. The generator is powered every 12 seconds, and for 10 seconds this periodvaries according to the temperature read by the probe, the instruction being for from 127 to 129°C.Little steam is generated, but the position is maintained until three minutes before the end of thecooking, thus enabling losses to be compensated while keeping the cavity saturated with steam.

Ø Steam evacuation and lowering of the temperature (step 3 and step 4)

Three minutes before the end of the cooking process, the thermoelectric activator and the pump are nolonger powered, and no further steam is created. Not being powered, the thermoelectric activatorretracts, opening the flap. The flow of air generated by the turbine "draws the steam" out of the cavity,avoiding a great cloud of steam emerging when the door is opened, which could appreciably reducethe temperature of the oven.At the start of this phase, for 2 minutes the generator is powered every 24 seconds, and for 24seconds.For the last minute, the heating cover and the ventilator are working.

Ø Keeping the contents hot (step 5)

This phase enables the food to be kept hot; just the generator, the heating cover and the ventilation areworking.The generator is powered every 24 seconds, and for 20 secondsKeeping the food hot goes on until the door is opened.

Step 0

T°C

Step1 Step 2 Step 3 Step 4 Step 5

Steam saturation Steam maintaining Steam evacuation Keeping warm

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1.2.1. - The regulation generator

The N.T.C sensor keeps the microprocessor inform of the generator temperature. The microprocessorcontrols the power supply to generator.

Generator sensor N.T.C

STEP T°C max T°C minSTEP 0 121°C 119°CSTEP 1 119°C 117°CSTEP 2 131°C 127°CSTEP 3 131°C 127°CSTEP 5 110°C 105°C

1.2.2. - Cooking time less than 18 minutes

TimeHeatingcover

Fasciaturbine Flow meter Generator Pump

Thermalactivator

Step 02mn 36s13 cycles On High speed On 8s/12s Off On

Saturationsteam Step 1

7mn 24s37 cycles On High speed

47 impulsesduring 12s On 10s/12s On On

Maintainingsteam Step 2

Less than13mn On High speed

18 impulsesduring 12s On 8s/12s On On

Step 3 2 minutes On High speed On 24s/24s Off OffEvacuation

steam Step 4 1 minute On High speed Off Off Off

Keeping thecontents

hotStep 5 1 hour max

On to the dooropening

High speed for3 minutes after

the dooropening

On 20s/24s Off Off

1.2.3. - Cooking time more than 18 minutes

TimeHeatingcover

Fasciaturbine

Flow meter Generator PumpThermalactivator

Step 02mn 36s13 cycles On High speed

64 impulsesduring 12s On 12s/12s On On

Saturationsteam Step 1

7mn 24s37 cycles On High speed

64 impulsesduring 12s On 12s/12s On On

Maintainingsteam Step 2

Less than13mn On High speed

40 impulsesduring 24s On 24s/24s On On

Step 3 2 minutes On High speed On 24s/24s Off OffEvacuation

steam Step 4 1 minute On High speed Off Off Off

Keeping thecontents

hotStep 5 1 hour max

On to the dooropening

High speed for3 minutes after

the dooropening

On 20s/24s Off Off

STUDY OFCOOKING

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STUDY OFCOOKING

1.2.4. - Opening the door during the cooking

When the door is opened during the cooking, there is a reduction in temperature and a loss of steam.For the best cooking quality, it is essential to make up for these deficiencies.

As soon as the door is opened, a micro contact opens, inform the electronic board of the door opening.

Ø Opening during the step 0 :Renewal of step 0.

Ø Opening during the step 1 :If the door is opened for less than 1'30", you should extend to step 1 for 2 minutes as soon as it isclosed again.

If the door is opened for more than 1'30", you should extend to step 1 for 5 minutes as soon as it isclosed again.

Ø Opening during the step 2 :If the door is opened for less than 1'30", you should revert to step 1 for 2 minutes as soon as it isclosed again.

If the door is opened for more than 1'30", you should revert to step 1 for 5 minutes as soon as it isclosed again.

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The different components

Designation Function Characteristics

Tank The tank must• Be filled up to maximum level withwater before every cooking session.• Be emptied after every cookingsessionIf the tap water is very hard, usebottled water.Never use demineralised water.

1 liter of water

The noise that can be heard if youshake the tank when is empty comesfrom the water level detector.

Pump A triac (TC1) switches on the pumpThe pump transfers the water from thetank to the generator.

- 220/240V~- 16WWhen you reassemble the pump,ensure there is no air bubble in thecircuit, and start the circuit up beforereassembling the panels

Flow meter The flow meter is incorporated into thewater circuit, between the outlet of thewater reserve and the pump.The water displacement makes a bladeturn on wich there is a magnet thatreleases a transistor function (effect of thefield).The impulses are counted by themicroprocessor which controls thequantity of water going into the appliance.

• Supply : 12V= between + and mass symbol.

• Out going voltage : between # and mass symbol.

Ø 5V= when it is not workingØ 1,7V= when it is workingWhen you reassemble the flow metersqueeze the pipes hermetically on itwith the Rilsan ring, and ensure thereis no air bubble in the circuit, and startthe circuit up before reassembling thepanels

Generator A relay (REL1) switches on the generator.The generator produces the heat tochange the water in steam.

The appliance is protected fromoverheating by a safety thermostat KX1(200°C) fitted under the generator.

- 220/240V~- 1600W- 33Ω

Heating cover A relay (REL2) switches on the heatingcover.Throughout the whole cooking time, theheating cover which is glued to theexternal walls of the cavity keep thetemperature slightly higher 100°C toprevent condensation. Its consists of twoelements in series of a total wattage of390w

- 220/240V~- 390W- 133Ω (88Ω and 45Ω )

DIFFERENTCOMPONENTS

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Designation Function Characteristics

Thermal activator A triac (TC2) switches on the thermalactivator.It keeps the valve closed throughout thecycle to keep the steam produced.

- 220/240V~- 5W- 1KΩ

Tangential fan A triac (TC3) switches on the tangentialfanIt runs throughout the cycle to cool theassembly and extracts steam from thevalve when it opens 3 minutes before theend of cooking.

- 220/240V~- 34W- 220Ω

Electronic board The hybrid power board includes :Relays, triacs, connectors and straps forconfigurations.

It commands the power elements underthe display card control, reads the centeroven temperature with the help of thetemperature sensor.

Be careful of the power boardconfiguration.The configuration (SC3, SC2 and SC1strap position on the power board) canbe controled in the diagnosis assistanceprogramme

Display board The display board includes :the display, a connection with the micro-switch board which allows the choice ofthe cooking programs and a selectionkeyboard (Start/Stop and the lot ofpossibilities of adjusting : temperatures,durations).

Probes The sensor keeps the microprocessorinform of• the generator temperature.

N.T.C sensor- 55KΩ at 20°C– 4,7KΩ at 90°C

CF5SC3

3 2 1

SC2 SC1

3 2 1 3 2 1

DIFFERENTCOMPONENTS

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ELECTRICALDIAGRAM

1.3. - The steam oven electrical diagram

MR tangential fanFR Generator

POM PumpNC Heating cover

AT Thermal activatorECL BulbKX1 Safety thermostat 200°C

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ELECTRONIC BOARD

1.4. - The electronic board

ON THE VOLTMETER ON THE OHMMETER

Repairs Components Supply Repairs Components Ohm

13-10 Main 220/240V~

13-5 Main after CP et KX1 220/240V~ Generator probe 55 kΩ

10-17 Tangential fan 220/240V~ 10-17 Tangential fan 220 Ω

5-15 Thermal activator 220/240V~ 5-15 Thermal activator 1K Ω

5-9 Generator 220/240V~ 5-9 Generator 35 Ω

16-6 Pump 197/220/240V~ 16-6 Pump en test diode

14-6 Heating cover 220/240V~ 14-6 Heating cover 130 Ω

10-5 Safety thermostat 0 Ω

ALL THESE VALUES ARE APPROXITIVES

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DISASSEMBLY

1.5. - Assistance for dismantling

1.5.1. - The door removal (picture 1)• Open the door.• Place the blocking axles in the holes on the hinges (1).• Press on the two supports lugs (2).• Slide the door on its two runners, drawing it towards you.

1.5.2. - The flow meter removal (picture 2)• Remove the rear panel, the top then the right panel.• Remove the fastening clip under the flow meter (1).• Lift and tilt the flow meter to take it from its position.• Remove the water supply tubes (2).• Disconnect the connector cable (3).

When you reassemble, squeeze the pipes hermetically onthe flow meter with the Rilsan ring, and ensure there is no airbubble in the circuit, and start the circuit up beforereassembling the panels.

1.5.3. - Dismantling the pump (picture3)• Remove the rear panel.• Disconnect the two supply wires.• Dismantle the two tubes.

When you reassemble, ensure there is no air bubble in the circuit,and start the circuit up before reassembling the panels.

1.5.4. - Dismantling the ILS card (picture 4)• Insert very carefully a flat screwdriver between the clip and the

card• Be careful not to distort the card .• After reassembling the card, check systematically on its

working.

Ø Water consumption after one hour cooking : 700ml to 850ml

picture 3

1

2

Picture 1

23

1Picture 2

picture 4

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OPERATINGINSTRUCTIONS

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OPERATINGINSTRUCITONS

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OPERATINGINSTRUCTIONS

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OPERATINGINSTRUCTIONS

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OPERATINGINSTRUCTIONS

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TEST PROGRAM

TEST PROGRAM FOR STEAM OVEN SOLO

STEPS ACTIONS RESULTS

CONDITIONS TO GO IN THETEST PROGRAMDisconnected the power supplyDoor closedWithout water tankReconnect the power supplyPush four times "STOP" button all the segments are lit

except the 4 indicators for thelevel of water

0 TEST OF WATER SENSORLEVEL

Open the doorInsert the tank containing waterClose the door the display show the level

increasing ,2,3,4,5 segments regularlyswitch on

1 PUSH "+" P1 displays : sensor test. ifok "=" appears

WattsMini

Wattsnorm

Wattsmax

2 PUSH "+" P2 :Total power test 1827 2030 21323 PUSH "+" P3 :Tangential fan test 18 20 214 PUSH "+" P4 : generator test 1440 1600 16805 PUSH "+" P5 : heating cover test 351 390 410

6 PUSH "+" P6 :water circuit testIF circuit is ok after 15 seconds"=" displaysIf problem a bip sound rings andthe "cooking" symbol displays

7 PUSH "START" the display switches off and goback to normal mode

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TEST PROGRAM

8 TEST OF EACH BUTTON

PUSH "START" logo "cooking"displays 25 minutesPUSH "STOP" display offPUSH "-" logo "cooking"displays 25 minutesPUSH "+" logo "cooking"displays 26 minutesPUSH "START" logo "cooking"displays 26 minutes=

level of waterPUSH "STOP" the display switches off and pass in

normal mode

9 TEST OF EMPTY LEVEL OFWATER

Open the doorRemove the tankPush "start + or - " the oven emits beeps and the water

tank is flashing

REMARKS

After the reconnection of the power supply you have 30 seconds to go inside the test program.

For all the steps you can stop the test program in pushing the "stop" button

For all the steps you can return to the previous step in pushing "-",

If there is no actions in a step during 60 seconds you go automatically out of the test program