SOE100X
SOE100A
Electronic Steam Oven
CONTENTS
1
1.1 - General principle.................................................................................................................................... 2
1.2 - Study of cooking ....................................................................................................................................3
1.3 - The different components .......................................................................................................................6
1.3 - The steam oven electrical diagram ..........................................................................................................8
1.4 - The electronic board..............................................................................................................................9
1.5 - Assistance for dismantling....................................................................................................................10
1.6 Operating Instructions ..........................................................................................................................12
1.7 Test Program.......................................................................................................................................17
Technical Training
2
GENERAL PRINCIPLE
1.1. - General principle
An extractable water tank holding one litre is placed in a position on the right hand side of the
appliance. 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 the
losses, 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 four
of its surfaces (those not covered are the bottom and the door). The temperature of the sides is slightly
higher than 100°C.
A ventilation turbine brings about a constant cooling throughout the whole cooking process, and when
this is over, a thermoelectric activator opens the flap valve, thus freeing the steam, which will be
channelled outside. This flap valve has four holes pierced in it, so that any build-up of pressure in the
cavity 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 that
can be heard if you shake the tank when it is empty comes from the water level detector) and a card of
four I.L.S. When the magnet goes past, the nearest ILS establishes contact informing the power board
about the quantity of water. The power board sends in return the necessary information for
visualisation. This system also enables to give an indication of the setting and correct position of the
tank; for if this is not there, or is not positioned, the level display does not come on.
Power board
Display board Key board
Thermal
activator
Tangential
fan
Magnet
Magnetic
switches
board
Flow meter
Pump
Safety
thermostat
Generator
Sensor
Heating
cover
Door
switch
Water
tank
Technical Training
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STUDY OF
COOKING
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 period
varies 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 the
cooking, 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 no
longer powered, and no further steam is created. Not being powered, the thermoelectric activator
retracts, 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 reduce
the temperature of the oven.
At the start of this phase, for 2 minutes the generator is powered every 24 seconds, and for 24
seconds.
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 are
working.
The generator is powered every 24 seconds, and for 20 seconds
Keeping 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
Technical Training
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1.2.1. - The regulation generator
The N.T.C sensor keeps the microprocessor inform of the generator temperature. The microprocessor
controls the power supply to generator.
Generator sensor N.T.C
STEP T°C max T°C min
STEP 0 121°C 119°C
STEP 1 119°C 117°C
STEP 2 131°C 127°C
STEP 3 131°C 127°C
STEP 5 110°C 105°C
1.2.2. - Cooking time less than 18 minutes
Time
Heating
cover
Fascia
turbine
Flow meter Generator Pump
Thermal
activator
Step 0
2mn 36s
13 cycles
On High speed On 8s/12s Off On
Saturation
steam
Step 1
7mn 24s
37 cycles
On High speed
47 impulses
during 12s
On 10s/12s On On
Maintaining
steam
Step 2
Less than
13mn
On High speed
18 impulses
during 12s
On 8s/12s On On
Step 3
2 minutes On High speed On 24s/24s Off Off
Evacuation
steam
Step 4
1 minute On High speed Off Off Off
Keeping the
contents
hot
Step 5
1 hour max
On to the door
opening
High speed for
3 minutes after
the door
opening
On 20s/24s Off Off
1.2.3. - Cooking time more than 18 minutes
Time
Heating
cover
Fascia
turbine
Flow meter Generator Pump
Thermal
activator
Step 0
2mn 36s
13 cycles
On High speed
64 impulses
during 12s
On 12s/12s On On
Saturation
steam
Step 1
7mn 24s
37 cycles
On High speed
64 impulses
during 12s
On 12s/12s On On
Maintaining
steam
Step 2
Less than
13mn
On High speed
40 impulses
during 24s
On 24s/24s On On
Step 3
2 minutes On High speed On 24s/24s Off Off
Evacuation
steam
Step 4
1 minute On High speed Off Off Off
Keeping the
contents
hot
Step 5
1 hour max
On to the door
opening
High speed for
3 minutes after
the door
opening
On 20s/24s Off Off
STUDY OF
COOKING
Technical Training
5
STUDY OF
COOKING
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 is
closed again.
If the door is opened for more than 1'30", you should extend to step 1 for 5 minutes as soon as it is
closed 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 is
closed again.
If the door is opened for more than 1'30", you should revert to step 1 for 5 minutes as soon as it is
closed again.
Technical Training
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The different components
Designation Function Characteristics
Tank The tank must
• Be filled up to maximum level with
water before every cooking session.
• Be emptied after every cooking
session
If the tap water is very hard, use
bottled water.
Never use demineralised water.
1 liter of water
The noise that can be heard if you
shake the tank when is empty comes
from the water level detector.
Pump A triac (TC1) switches on the pump
The pump transfers the water from the
tank to the generator.
- 220/240V~
- 16W
When you reassemble the pump,
ensure there is no air bubble in the
circuit, and start the circuit up before
reassembling the panels
Flow meter The flow meter is incorporated into the
water circuit, between the outlet of the
water reserve and the pump.
The water displacement makes a blade
turn on wich there is a magnet that
releases a transistor function (effect of the
field).
The impulses are counted by the
microprocessor which controls the
quantity 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 working
Ø 1,7V= when it is working
When you reassemble the flow meter
squeeze the pipes hermetically on it
with the Rilsan ring, and ensure there
is no air bubble in the circuit, and start
the circuit up before reassembling the
panels
Generator A relay (REL1) switches on the generator.
The generator produces the heat to
change the water in steam.
The appliance is protected from
overheating by a safety thermostat KX1
(200°C) fitted under the generator.
- 220/240V~
- 1600W
- 33Ω
Heating cover A relay (REL2) switches on the heating
cover.
Throughout the whole cooking time, the
heating cover which is glued to the
external walls of the cavity keep the
temperature slightly higher 100°C to
prevent condensation. Its consists of two
elements in series of a total wattage of
390w
- 220/240V~
- 390W
- 133Ω (88 Ω and 45Ω )
DIFFERENT
COMPONENTS
Technical Training
7
Designation Function Characteristics
Thermal activator A triac (TC2) switches on the thermal
activator.
It keeps the valve closed throughout the
cycle to keep the steam produced.
- 220/240V~
- 5W
- 1KΩ
Tangential fan A triac (TC3) switches on the tangential
fan
It runs throughout the cycle to cool the
assembly and extracts steam from the
valve when it opens 3 minutes before the
end of cooking.
- 220/240V~
- 34W
- 220Ω
Electronic board The hybrid power board includes :
Relays, triacs, connectors and straps for
configurations.
It commands the power elements under
the display card control, reads the center
oven temperature with the help of the
temperature sensor.
Be careful of the power board
configuration.
The configuration (SC3, SC2 and SC1
strap position on the power board) can
be controled in the diagnosis assistance
programme
Display board The display board includes :
the display, a connection with the microswitch board which allows the choice of
the cooking programs and a selection
keyboard (Start/Stop and the lot of
possibilities of adjusting : temperatures,
durations).
Probes The sensor keeps the microprocessor
inform of
• the generator temperature.
N.T.C sensor
- 55KΩ at 20°C
– 4,7KΩ at 90°C
CF5
SC3
3 2 1
SC2
SC1
3 2 1 3 2 1
DIFFERENT
COMPONENTS
Technical Training
8
ELECTRICAL
DIAGRAM
1.3. - The steam oven electrical diagram
MR
tangential fan
FR
Generator
POM
Pump
NC
Heating cover
AT
Thermal activator
ECL
Bulb
KX1
Safety thermostat 200°C
Technical Training
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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
Technical Training
10
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 on
the flow meter with the Rilsan ring, and ensure there is no air
bubble in the circuit, and start the circuit up before
reassembling 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
231
Picture 2
picture 4
Technical Training
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OPERATING
Technical Training
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OPERATING
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OPERATING
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OPERATING
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OPERATING
Technical Training
16
TEST PROGRAM
TEST PROGRAM FOR STEAM OVEN SOLO
STEPS ACTIONS RESULTS
CONDITIONS TO GO IN THE
TEST PROGRAM
Disconnected the power supply
Door closed
Without water tank
Reconnect the power supply
Push four times "STOP" button all the segments are lit
except the 4 indicators for the
level of water
0
TEST OF WATER SENSOR
LEVEL
Open the door
Insert the tank containing water
Close the door the display show the level
increasing ,
2,3,4,5 segments regularly
switch on
1
PUSH "+" P1 displays : sensor test. if
ok "=" appears
Watts
Mini
Watts
norm
Watts
max
2
PUSH "+"
P2 :Total power test 1827 2030 2132
3
PUSH "+"
P3 :Tangential fan test 18 20 21
4
PUSH "+"
P4 : generator test 1440 1600 1680
5
PUSH "+"
P5 : heating cover test 351 390 410
6
PUSH "+"
P6 :water circuit test
IF circuit is ok after 15 seconds
"=" displays
If problem a bip sound rings and
the "cooking" symbol displays
7
PUSH "START"
the display switches off and go
back to normal mode
Technical Training
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TEST PROGRAM
8
TEST OF EACH BUTTON
PUSH "START" logo "cooking"displays 25 minutes
PUSH "STOP" display off
PUSH "-" logo "cooking"displays 25 minutes
PUSH "+" logo "cooking"displays 26 minutes
PUSH "START" logo "cooking"displays 26 minutes=
level of water
PUSH "STOP" the display switches off and pass in
normal mode
9 TEST OF EMPTY LEVEL OF
WATER
Open the door
Remove the tank
Push "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
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