USER MANUAL
ELECTRIC CONVECTION STEAMER
air - o - steam®
Series 57
6 GN 1/1
10 GN 1/1
20 GN 1/1
20 GN 2/1
GB
DE
FR
English
Deutsch
Français
Page 1 - 21
Page 1 - 22
Page 1 - 24
I - 450 - BE, I - 432 - B, I - 456 - BF
I - 450 - BE
DOC. NO. 5958 785 01
EDITION 2 J 0107
1.
Technical data
Model
Capacity
5711-3
6 x 1/1GN
715
890
5712-3
10 x 1/1GN
941
5714-3
20 x 1/1GN
5717-3
20 x 2/1GN
Model
Version
Dimensions mm
Height
Width
Depth
Weight
kg
Noise
level
784
120
< 70 dB (A)
890
928
170
< 70 dB (A)
1748
890
928
250
< 70 dB (A)
1748
890
1243
340
< 70 dB (A)
Rated voltage
Control
voltage
2
Rated voltage
Nominal input
heating elements heating elements
Rated
Wiring
output
diagram Nr.
5711-3
5711-3
5711-3
VI
VII
VIII, X
3N AC 400V 50Hz
3N AC 400V 50Hz
3N AC 400V 50Hz
230V
230V
230V
230V
230V
230V
9 000W
9 000W
9 000W
9 300W
9 300W
9 300W
883 606-3
884 607-3
884 608-3
5712-3
5712-3
5712-3
VI
VII
VIII, X
3N AC 400V 50Hz
3N AC 400V 50Hz
3N AC 400V 50Hz
230V
230V
230V
230V
230V
230V
17 000W
17 000W
17 000W
17 300W
17 300W
17 300W
883 622-3
883 619-3
883 620-3
5714-3
5714-3
5714-3
VI
VII
VIII, X
3N AC 400V 50Hz
3N AC 400V 50Hz
3N AC 400V 50Hz
230V
230V
230V
230V
230V
230V
34 000W
34 000W
34 000W
34 500W
34 500W
34 500W
883 622-3
883 619-3
883 620-3
5717-3
5717-3
5717-3
VI
VII
VIII, X
3N AC 400V 50Hz
3N AC 400V 50Hz
3N AC 400V 50Hz
230V
230V
230V
400V
400V
400V
48 000W
48 000W
48 000W
48 900W
48 900W
48 900W
883 615-3
884 609-3
884 617-3
I-450-BE
Fig. 5
Connections
EZ
=
Current supply
5 x 2,5mm²
5 x 6mm²
5 x 10mm²
2x (5 x 10mm²)
PG21
PG29
PG36
2x PG29
10
=
Funnel for descaling agent
ME
=
Interior cavity venting
SW
=
Steam release
ø 40 mm
40 x 80 mm
(5711 - 3)
(5712 - 3)
(5714 - 3)
(5717 - 3)
5711 - 3
WA1
=
WA2
=
WA
=
5712 - 3
WZ1
=
WZ2
=
Water discharge
R 1 1/4"
Water discharge
Rp 3/4"
Water discharge
R 1 1/4"
R 1 1/4"
Rp 1 1/2"
Water
R 3/4"
Softened water
R 3/4"
(5711 - 5714 - 3)
(5717 - 3)
(5711 - 3)
(5711 - 3)
(5712 - 3)
(5714 - 3)
(5717 - 3)
(5711 - 5717 - 3)
(5711 - 5717 - 3)
5714 - 3
5717 - 3
I-450-BE
3
a very irregular floor the mounting of a wheel-guided
roll-in guide is recommended for a perfect exchange
of all trolleys (available also as accessory).
INSTALLATION INSTRUCTIONS
INDEX
1.
2.
2.1.
2.1.1.
2.1.2.
2.2.
2.2.1.
2.3.
2.3.1.
2.3.2.
2.3.3.
2.4.
2.4.1.
2.4.2.
2.5
2.6.
2.7.
2.8.
3.
4.
4.1.
4.2.
4.3.
4.4.
5.
Unit identification
2
Installation and connection
4
Installation
4
Table top models
4
Free-standing floor units
4
Electrical connection
4
Connection to the power mains
4
Water connection
4
Indication for units with steam generator
and connection to drinking water
4
Solid substances
5
Dissolved substances
5
Connection to the drainage system
5
Open connection to the drainage system 5
Fixed connection to the drainage system 5
Connection to the exhaust gas discharge 5
General information
6
Procedure in case of malfunction
6
Proper handling and maintenance
6
Safety recommendations
6
Operating instructions
7
Control panel (fig.1 - 4)
7-10
Operating instructions - version VI
11
Operating instructions - version VII
12
Operating instructions - version VIII
13
Operating instructions - version X
16
Cleaning and maintenance
20
2. Installation and connection
2.1.
Installation
2.1.1. Table models 5711-3, 5712-3
The following is to be observed:
- An even and level installation room.
- Keep a distance to heat dissipating units.
- No direct steam and heat influence from neighbouring
units.
- Alignment of the unit by means of the height adjustable feets, unit must be preheated.
- Fastening with the enclosed foot plates (screw in or
glue).
For installation as a group keep a distance of at least
500 mm between the units.
2.1.2. Free-standing floor units 5714-3, 5717-3
- even and level installation room.
- alignment of the unit by means of the height-adjustable feets. Unit must be preheated.
- uniform clearance.
- trolley must be insertable perfectly.
- alignment of the trolley by inserting spacers between
trolley frame and wheel (available also as accessory).
- when installing several free-standing units or in case of
4
When positioning the free-standing models against a
wall/niche a distance of at least 500 mm is recommended for installation and service reasons.
2.2. Electrical connection
See page 6: “Connection of the air-o-steam® units to
the power mains”
- Before connecting the unit check type of power supply
and voltage available with the data plate.
- Connection according to wiring diagram; wiring diagram is to be found inside the unit.
- Connection shall be carried out by authorized personnel only.
- Respect the regulations, local prescriptions of the electric power plant.
Take particular care:
- During installation the unit must be secured sufficiently
and be equipped with a cut-off device (all-pole cut-off
≥ 3 mm). Connect an equipotential cable - situated
next to the electrical connection - to the equipotential
screw.
- The unit may be used only with the prescribed safety
devices. (Protection category I).
- Use only flexible connection cables - H07 RN-F.
2.2.1. Electric cable connection
To connect the supply cable to the terminal block of the
appliance, proceed as follows:
- Loosen the two screws on the cover of the connection
box to be found on the bottom of the appliance.
- The box cover of the terminal block swings open downwards.
- Pass the connection cable through the corresponding
cable grip in the lid.
- Connect the different leads of the cable according to
the wiring diagram and tighten the cable grip.
- Replace the cover and tighten the relative fastening
screws.
2.3. Water connection
- Hose connection 1/2" pressure tight, cap nut 3/4".
- Insert a waste sieve on site. Sieves are installed as
standard equipment before the valve.
- Connection has to be effected to softened cold water.
- Max. mains pressure 10 bar, cold water.
2.3.1. Indication for units with steam generator and
connection to drinking water
- Steam generator is supplied with drinking water.
- Water quality is important for:
•
•
•
-
function,
durability - heating element,
energy consumption.
Criteria concerning the water quality are the solid and
the dissolved substances.
I-450-BE
2.3.2. Solid substances
Solid substances are e.g. sand or residues from the piping; to avoid these materials to deposit: insert a filter.
2.3.3. Dissolved substances
Dissolved substances are gases and salts.
Gases
If the gases are nitrogen, oxygen and carbon dioxide it
does not create any problems. If on the contrary the carbon dioxide is dissolved in an aggressive form as carbonic acid, the following measures (filter, degas) are to
be foreseen to avoid corrosion.
Salts
Salts dissolved in water influence the water quality as
hardening agent or non-hardening agent. Hard and/or very
saliferous water will harm the steam generator’s operation. The relevant standard for the water hardness is the
degree of German hardness (°d). It is classified as follows:
0
- 7°d
softened water
7
- 14°d
medium hard water
14
- 21°d
hard water
more - 21°d
very hard water
Only softened water (max. 5 - 7°d) ensures a trouble free
operation of the steam generator. A hardness too low (below 5°d) can provoke corrosion inside the steam generator and the unit, increased hardness will lead to the calcification of the heating elements and to break-down due to
the resulting heat accumulation, as well as to the calcification of the steam generator and the unit. For a troublefree operation of the steam generator the following water
quality is recommended:
1.
2.
3.
4.
Hardness:
Chloride:
Sulphide:
Heavy metals:
5 - 7° d
no more than 150 - 250 mg/l
no more than 400 mg/l
iron less than 0,10 mg/l
manganese less than 0,05 mg/l
copper only traces
5. Total saline content no more than 400 - 600 mg/l
In case the drinking water does not comply with these
indicative values, it must be adjusted - best directly before entering the steam generator - to the recommended
values. For harder water the installation of an ion exchanger is recommended, which must be regenerated
from time to time with cooking salt. By adding normal
water it is possible to reach the necessary hardness of 5°
d. The usual injection of phosphate to avoid lime deposits
and corrosion inside the piping is harmless if the introduced quantity does not exceed 5 mg P2O5/l (2,5 mg
phosphoric acid anhydride P4O10) according to the relevant drinking water regulations. In case this value will be
exceeded considerably for whatever reason, the residues
may have a negative influence on the steam generator
and the unit. Using not softened water a regular descaling
is absolutely necessary (see more precise explanations
given in the instruction manual). The descaling intervals
depend on the water hardness and the daily operation
hours; therefore it is not possible to provide precise indications.
I-450-BE
Conversion to other degrees of water hardness:
1°d
= 0,1783 mmol/l
= 1,79°F
(France)
= 1,25°e
(Great-Britain)
= 17,9 ppm
(USA)
2.4. Connection to the drainage system
Observe the prescriptions of the national standards.
2.4.1. Open connection to the drainage system
The connection of the drainage pipe is foreseen at the
centre of the unit. The following is to be observed:
•
•
•
•
•
•
Temperature resistant hose/pipe.
Install with a constant direct slope (approx. 3%) without any buckles.
The waste water outlet must be outside the positioning surface of the unit (respect a distance of at least 1
m away from the unit. Formation of waste air/steam!).
The waste water outlet must be approx. 30 mm above
the water level of a syphon drain or trough.
Never reduce the diameter of the discharge pipe. Maintain the diameter of the connection sleeve.
In case the unit is installed as part of a group, each
unit must be connected to a separate drain pipe into
an open funnel or syphon drain.
2.4.2. Fixed connection to the drainage system
•
•
•
•
-
-
Waste water connection sleeve of unit:
R 11/4" and R 3/4" (5711 - 3)
R 11/4" (5712/14 - 3)
Rp 11/2" (5717 - 3)
Waste water piping preferably as rigid pipe
Install with a constant slope (approx. 3%)
Installation of a rigid pipe:
Sleeve joint nipple:
R 11/4" - 34 mm
additional Rp 11/2" - R 11/4"
Rigid PE-pipe 34 x 2
(5711/12/14 - 3)
(5717 - 3)
Important ! In case of a fixed connection to the drainage
system it is absolutely necessary to install a venting pipe
between unit and syphon drain. If this venting pipe is not
part of the unit it is available as accessory to be ordered
separately.
2.5. Connection to the exhaust gas discharge
- The installation underneath an extraction hood is recommended.
- A waste air quenching system is installed inside the
unit as standard equipment. It is controlled by means
of a thermostat, this means it is activated and deactivated automatically.
- This system prevents the escape of vapours and the
water consumption is reduced to a minimum.
- In the version VII,VIII and X the waste air quenching
system can be activated or deactivated. Installing the
appliance under a steam extraction hood, saves on
water.
- It is forbidden to connect the pipe of the waste air
quenching system directly to that of the extraction hood.
5
2.6.
General information
- Do not block the vapour escape.
- Do not block or cover the safety device (steam release safety valve).
- The units are designed for unattended operation.
2.7. Procedure in case of malfunction
In case of malfunction disconnect the unit immediately
and call for the after-sales-service. Any servicing or reparation of malfunction is to be carried out by authorized
qualified technicians only.
2.8. Proper handling and maintenance
Only in case of proper handling according to the regulations of this installation instructions, the operating instructions (manual) and the indications concerning cleaning
and care as well as a regular maintenance by an authorized technician we will be able to guarantee perfect operation and operation safety according to our sales and
delivery terms.
This is equally valid for the regulations of the laws in force
concerning unit safety and the prevention of accidents.
Therefore we recommend the stipulation of a maintenance
contract. Only use original spare parts !
To maintain the operational value of your unit and to avoid
malfunctions we recommend a regular maintenance according to the check-list. The authorized after-sales-service trained for this kind of appliance guarantees maximum
service for your unit.
Regular maintenance (see checklist) obviously depends
on the frequency of operation; the recommended intervals are:
Operation:
up to 2 hours a day
between 2 to 6 hours a day
more than 6 hours a day
maintenance every 12 months
maintenance every 6 months
maintenance every 4 months
3. Safety recommendations
Before operating the appliance, it must be installed according to the assembly instructions and connected by
an authorised technician.
The appliance should not be switched on until the user
has been instructed on how to operate it.
The appliance may only be used by trained personnel. It
has been officially approved for cooking food in commercial kitchens and food processing businesses only. Closed
containers such as tins, jars, bottles, tubes, etc. may not
be heated in the appliance as they could explode with the
consequent risk of injuring persons or damaging the appliance. When using the appliance in the Steam, Steam 1
or Steam 2/Regenerate modes, the door should first of all
be opened to the waiting position. Only after the steam
has escaped through the slits created around the door,
may the latter be fully opened. When working with this
appliance, hygiene standards (HACC) must be strictly
6
observed. When preparing food to be cooked at a low
temperature, for example, a stage lasting 10 - 15 minutes
with a cooking temperature of ≥ 150°C must be inserted,
observing the process carefully. In this way any bacteria
on the surface of the food to be cooked will be destroyed.
During preparation of foods to be cooked, it should also
be checked that utensils are absolutely clean, in order to
avoid any contamination inside the actual food.
Should these instructions not be respected, the manufacturer cannot guarantee that the food will be cooked perfectly from a hygienic and sanitary point of view. No objects such as GN containers, pans, cloths, etc. should be
placed on the appliance when it is in use. When in operation, avoid touching glass or metal surfaces as there is
the risk of injury due to the high cooking temperatures.
The appliance must not be cleaned with any high-pressure cleaning device (see further instructions under paragraph ”Cleaning and care”). To clean the cooking chamber and stainless steel parts, only use a special cleaning
agent recommended for this type of appliance (see further instructions under paragraph ”Cleaning and care”).
To remove any scale from the steam generator, only use
a descaling product specially developed for this purpose
(see further instructions under paragraph ”Cleaning and
care”). In the event of malfunctioning or failure, switch off
the appliance. If the self-diagnosis on the electric controls does not identify the fault or if the panel or covering
elements would have to be removed in order to be able to
eliminate the trouble, contact the nearest service centre.
The appliance must not be switched on again until the
fault has been mended. Some faults or malfunctioning
may also be caused by faults in the electricity supply or
by impurities in the water supply or drainage system. The
manufacturer of the appliance cannot be held liable for
this type of fault. The user should also have these points
checked regularly by an authorised service centre.
To guarantee that the appliance is in proper working order, periodic maintenance and checks by an authorised
technician are necessary. Such technicians must be
trained by the manufacturer and observe the laws and
standards in force in connection with their work. It is therefore advisable to take out a maintenance contract. Parts
and components must not be replaced with other than
original spare parts. In compliance with our terms of sale
and delivery, perfect and safe operation of the appliance
is only guaranteed if it has been handled and used correctly, operated according to the operating instructions,
looked after, cleaned and regularly overhauled by technical personnel or by the service centre.
I-450-BE
4. Operating instructions
Version VI
1
ON/OFF switch
11
Hot air
12
Steam
13
Steam 1
14
Steam 2/regeneration
17
Programming the temperature of the cooking
chamber
18
Programming the duration of the cooking cycle
28
Warning of scale build-up in the steam generator
29
Door safety
30
Steam generator level gauge
31
Low temperature steam
Fig. 1
I-450-BE
7
Version VII
1
ON/OFF switch
11
Hot air
12
Steam
13
Steam 1
14
Steam 2/regeneration
17
Programming the temperature inside the cooking
chamber
18
Programming the duration of the cooking cycle
19
Programming the core temperature
25
Waste steam quenching system
26
Manual humidification
28
Warning of scale build-up inside the steam
generator
29
Door safety
30
Steam generator level gauge
31
Low temperature steam
32
Fan speed selection switch
Fig. 2
8
I-450-BE
Version VIII
1
ON/OFF switch
3
Start/Stop
5
Cook Step
6
Fan speed selection
7
Cook & Hold
8
Intermittant fan operation
9
ECO-Delta Cooking
10
Programming the starting time of the cooking
cycle
11
Hot air
12
Steam
13
Steam 1
14
Steam 2/regeneration
17
Programming the temperature inside the
cooking chamber
18
Programming the duration of the cooking cycle
19
Programming the core temperature
23
Steam generator discharge
24
Clean programme
25
Waste steam quenching system
26
Manual humidification
27
Steam release valve of the cooking chamber
28
Warning of scale build-up inside the steam
generator
29
Door safety
30
Steam generator level gauge
Fig. 3
I-450-BE
9
Version X
1
ON/OFF switch
2
Mode “PROG/AUTO”
3
Start/Stop
4
Programme selection
5
Cook Step
6
Fan speed selector
7
Cook & Hold
8
Intermittent fan operation
9
ECO-Delta Cooking
10
Programming the starting time of the cooking
cycle
11
Hot air
12
Steam
13
Steam 1
14
Steam 2/regeneration
15
Indication of the actual temperature value
16
Regulation of the moisture degree
17
Programming the temperature inside the
cooking chamber
18
Programming the duration of the cooking cycle
19
Programming the core temperature
20
CLEAR ENTRY
21
MEMORY
22
PROGRAM
23
Emptying the steam generator
24
Clean programme
25
Waste steam quenching system
26
Manual humidification
27
Steam release valve of the cooking chamber
28
Warning of scale build-up in the steam generator
29
Door safety
30
Steam generator level gauge
Fig. 4
10
I-450-BE
4.1. Control panel - version VI
MAIN SWITCH
(Fig.1 No.1)
The main switch is situated on the upper part of the control
panel and is used to switch the appliance on or off. When
the marking of the knob points to "0" the appliance is
switched off. When selecting the cooking programmes
mentioned below the appliance is switched on
automatically. The indicator light above the switch lights
up. To switch off the appliance simply turn the main switch
back to position ”0”. The indicator light goes out.
The five cooking programmes are activated by means of
a programme selection switch.
HOT AIR
(Fig.1 No.11)
In this position only the heating of the cooking chamber is
activated, which means just hot-air operation.
STEAM
(Fig.1 No.12)
In this position only the steam generator heating elements
are activated, which means just steam operation (100°C).
STEAM 1
(Fig.1 No.13)
In this position the heating of the cooking chamber is
activated as well as the steam generator heating elements
in the proportion of 75% hot air and 25% steam.
10 minutes. In the ”STEAM” cooking mode, the
temperature is automatically limited to 100 °C. In the
”STEAM 1" and ”STEAM 2” cooking modes, the
programmable maximum temperature is 250° C. In the
”LOW-TEMPERATURE STEAM" cooking mode, the
programmable temperature goes from 30° to 99° C.
ACTUAL COOKING TIME
(Fig.1 No.18)
Programming the desired cooking time. The time scale is
divided into three different graduations :
Range from 1 - 20 min.: This enlarged range in 1-minute
stages is provided for short term cooking.
Range from 20 - 120 min.: This range in 4-minute stages
is provided for long term cooking.
Range ¥: This sign of infinity indicates continuous
operation. In this position the appliance is preheated or is
working in the “stand-by” operation.
By turning the knob, the timer is activated and the cooking
process starts, if the desired cooking programme and
temperature has been preset. During the course of cooking
process the green indicator light above the knob lights
up. As soon as the cooking time is over, the indicator light
goes out and an audible signal is activated.
Three circular indicator lights, placed in the lower part of
the control panel, are indicating the following control
functions.
WARNING OF SCALE BUILD-UP IN THE
STEAM 2 - REGENERATION
(Fig.1 No.14)
In this position the heating of the cooking chamber is
activated as well as the steam generator heating elements
in the proportion of 50% hot air and 50% steam.
Low temperature steam, vacuum-cooking
(Fig.1 No.31)
In this position only the steam generator heating elements
are activated, which means just steam operation
(temperature range between 30°C and 99 °C).
STEAM GENERATOR
(Fig.1 No.28)
When the indicator light relating to the symbol comes on,
this means that there is a build-up of scale in the steam
generator and on the heating elements. Descaling should
be carried out as quickly as possible. Detailed instructions
for the chemical descaling of the entire system are given
in the chapter ”Cleaning and care”.
DOOR SAFETY
(Fig.1 No.29)
If the indicator light relating to this symbol comes on, the
door is not closed properly and consequently the ”STEAM”
and ”STEAM 1” cooking modes cannot be activated.
COOKING CHAMBER TEMPERATURE
STEAM GENERATOR LEVEL GAUGE
(Fig.1 No.17)
Setting of the required temperature inside the cooking
chamber. The temperature may be set anywhere between
50° and 300° C. The markings on the knob allow the
approximate regulation of the temperature value, while
the luminous digital indication (display) above the knob
allows a precise regulation. During the process of
programming the temperature value is blinking. If no further change is made, after 3 seconds the display will
indicate the temperature value actually measured by the
temperature sensor inside the cooking chamber, thus
enabling a constant control of the actual temperature inside
the cooking chamber.
In the "HOT AIR" cooking mode, the programmable
maximum temperature is 300° C. In this case the
temperature range between 250° and 300°C is limited to
(Fig.1 No.30)
The indicator light relating to the steam generator symbol
blinks whenever the water in the steam generator does
not cover the safety level mark.
If the indicator light up continously, this means that the
steam generator is still being filled with water, the heating
elements, however, can be activated. The steam generator
is ready for use.
When the indicator light goes out, this means that the
water level inside the steam generator is correct and there
is no need to top up.
I-450-BE
11
4.2. Control panel - version VII
MAIN SWITCH
(Fig.2 No.1)
The main switch is situated on the upper part of the control
panel and is used to switch the appliance on or off. When
the marking of the knob points to “0” the appliance is
switched off. When selecting the cooking programmes
mentioned below the appliance is switched on automatically.
The indicator light above the knob lights up. To switch off
the appliance simply turn the main switch back to position
”0”. The indicator light goes out.
The five cooking programmes are activated by means of a
programme selection switch.
HOT AIR
(Fig.2 No.11)
In this position only the heating of the cooking chamber is
activated, which means just hot air-operation.
STEAM
(Fig.2 No.12)
In this position only the steam generator heating elements
are activated, which means just steam operation (100 °C).
STEAM 1
(Fig.2 No.13)
In this position the heating of the cooking chamber is
activated as well as the steam generator heating elements
in the proportion 75% hot air and 25% steam.
STEAM 2 - REGENERATION
(Fig.2 No.14)
In this position the heating of the cooking chamber is
activated as well as the steam generator heating elements
in the proportion 50% hot air and 50% steam.
Low temperature steam, vacuum-cooking
(Fig.2 No.31)
In this position only the steam generator heating elements
are activated, which means just steam operation
(temperature range adjustable between 30°C and 99 °C).
COOKING CHAMBER TEMPERATURE
(Fig.2 No.17)
Setting of the required temperature inside the cooking
chamber. The temperature may be set anywhere between
50° and 300° C. The markings on the knob allow the
approximate regulation of the temperature value, while the
luminous digital indication (display) above the knob allows
a precise regulation. During the process of programming
the temperature value is blinking. If no further change is
made, after 3 seconds the display will indicate the temperature value actually measured by the temperature sensor
inside the cooking chamber, thus enabling a constant
control of the actual temperature inside the cooking
chamber.
In the “HOT AIR” cooking mode, the programmable
maximum temperature is 300° C. In this case the
temperature range between 250° and 300°C is limited to
12
10 minutes. In the ”STEAM” cooking mode, the temperature
is automatically limited to 100 °C. In the ”STEAM 1" and
”STEAM 2” cooking modes, the programmable maximum
temperature is 250° C. In the ”LOW-TEMPERATURE
STEAM” cooking mode, the programmable temperature
goes from 30° to 99° C.
ACTUAL COOKING TIME
(Fig.2 No.18)
Programming the desired cooking time. The time scale is
divided into three different graduations :
Range from 1 - 20 min.: This enlarged range in 1-minute
stages is provided for short term cooking.
Range from 20 - 120 min.: This range in 4-minute stages
is provided for long term cooking.
Range ¥: This sign of infinity indicates continuous
operation. In this position the appliance is preheated or is
working in the “stand-by” operation.
By turning the knob, the timer is activated and the cooking
process starts, if the desired cooking programme and temperature has been preset. During the course of cooking
process the green indicator light above the knob lights up.
As soon as the cooking time is over, the indicator light
goes out and an audible signal is activated.
If the cooking process is carried out by using the core
temperature sensor, the timer must be in the “0” position.
CORE TEMPERATURE
(Fig.2 No. 19)
In this cooking process the cooking time is determined by
the set core temperature. For this operation it is necessary
to set the timer to the “0” position.
By turning the knob to the right the required core temperature can be increased up to 99°C maximum.
By turning the knob to the left, the temperature is lowered,
with a programmable temperature value of 0°C minimum.
During the programming stage the set temperature value
is blinking on the display above the knob. If no further
change is made, after 3 seconds the display will indicate
the temperature value actually measured by the core temperature sensor, thus enabling a constant control of the
roast during the entire cooking process.
REDUCED FAN SPEED
(Fig.2 No. 32)
When pressing this button the indicator light above the
symbol lights up. If the appliance has not yet been started
and therefore the fan is not yet in operation, the fan motor
will automatically operate at reduced speed after starting
the cooking process. If on the contrary the fan motor has
been started at high speed, it will be interrupted shortly
(approximately 15 seconds), after which the motor
automatically starts at reduced speed.
To operate the appliance with normal fan speed, just press
this button again. The indicator light goes out and the motor
automatically changes to normal speed.
Note: when the fan reduced speed is enabled, the hot air power
gets automatically reduced to 50% :
EMPTYING THE STEAM GENERATOR
(Fig.2 No.23)
The appliance is fitted with a motor-operated discharge valve.
Under normal conditions it is closed and this is shown by
I-450-BE
the indicator light above the symbol going out.
Upon pressing the button the valve opens so that the water
inside the steam generator can drain off. This operation is
shown by the relative indicator light coming on. Once the
boiler has been drained the button must be pressed again
to close the valve.
WASTE STEAM QUENCHING SYSTEM
(Fig.2 No.25)
This button can be used to activate or deactivate the
thermostatic waste steam quenching system in all the
cooking modes. If the air-o-steam® is placed under a steam
extraction hood, the steam need not be condensed by
spraying cold water into the waste tube. This saves on
water. Upon pressing this button, the relative indicator light
above the symbol starts blinking, showing that the steam
condensation device is deactivated.
By pressing the button again, the system is re-activated in
normal condition and depending on whether water is being
injected or not, the relative indicator lights up constantly or
goes out.
MANUAL HUMIDIFICATION
(Fig.2 No.26)
This button may be used to increase the degree of humidity
inside the cooking chamber by introducing water. The water
input time is limited to about 5 seconds.
The relative indicator light is on during water input. The
degree of humidity in the cooking chamber may be altered
to individual requirements by pressing this button several
times.
Three circular indicator lights, placed in the lower part of
the control panel, are indicating the following control
functions.
WARNING OF SCALE BUILD-UP IN THE
STEAM GENERATOR
(Fig.2 No.28)
When the indicator light relating to the symbol comes on,
this means that there is a build-up of scale in the steam
generator and on the heating elements. Descaling should
be carried out as quickly as possible.
Detailed instructions for chemical descaling of the entire
system are given in the chapter ”Cleaning and care”.
DOOR SAFETY
(Fig.2 No.29)
If the indicator light relating to this symbol comes on, the
door is not closed properly and consequently the ”STEAM”
and ”STEAM 1” cooking modes cannot be activated.
STEAM GENERATOR LEVEL GAUGE
(Fig.2 No.30)
The indicator light relating to the steam generator symbol
blinks whenever the water in the steam generator does not
cover the safety level mark.
If the indicator lights up continously, this means that the
steam generator is still being filled with water, the heating
elements, however, can be activated. The steam generator
is ready for use. When the indicator light goes out, this
means that the water level inside the steam generator is
correct and there is no need to top up.
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4.3. Control panel - version VIII
ON/OFF SWITCH
(Fig.3 No.1)
The ON/OFF switch is used to switch the appliance and
controls on or off. To switch the appliance on, lightly press
the button; to switch off keep the button pressed down for
about 3 seconds. This time delay avoids accidental
switching off during a cooking cycle.
When the appliance is switched off, this is indicated by
the green indicator light above the button going out. When
the appliance is switched on it lights up.
Note: upon switching off the appliance, wait at least 5
seconds before switching on again.
COOK-STEP
(Fig.3 No.5)
With this COOK-STEP storage, it is possible to divide a
cooking cycle into two different sequences: e.g. browning
and finishing the cooking of the roast. The two COOKSTEPS are indicated by the two-coloured indicator lights.
The lighting up of a red indicator light indicates, that the
relevant COOK-STEP is just being programmed or that it
is already working. The other STEP which actually is not in
operation is shown by a green indicator light.
The first COOK-STEP is always activated automatically
in the neutral position of the control, which is indicated by
the lighting up of the left indicator light in red and the right
indicator light, symbolizing the second cooking stage, in
green. As soon as the first COOK-STEP is memorized
(e.g. cooking chamber temperature in the hot air mode and
a certain time for the initial roasting stage), it is possible to
activate the second stage by pressing the button and then
proceed with a new programming (e.g. cooking chamber
temperature in a combination mode and a certain cooking
time for the final roasting) .
START
STOP
START/STOP
(Fig.3 No.3)
After having selected all data necessary for the cooking
process, such as temperature, cooking time, cooking mode
and fan speed, the cooking process may be started using
the ”START/STOP” button. The relative yellow indicator light
comes on.
The cooking cycle may be interrupted by pressing the button
for more than 3 seconds.
HOT AIR
(Fig.3 No.11)
In this position only the heating of the cooking chamber is
activated, which means just hot-air operation.
STEAM
(Fig.3 No.12)
In this position only the steam generator heating elements
are activated, which means steam operation between
30 - 100°C.
13
STEAM 1
(Fig.3 No.13)
In this position the heating of the cooking chamber is
activated as well as the steam generator heating elements
in the proportion of 75% hot air and 25% steam.
STEAM 2 - REGENERATION
(Fig.3 No.14)
In this position the heating of the cooking chamber is
activated as well as the steam generator heating elements
in the proportion of 50% hot air and 50% steam.
INTERMITTENT FAN OPERATION (Fig.3 No.8)
Intermittent fan operation is obtained in this position, i.e.
the fan starts and stops at programmed intervals. This
intermittent control is activated when the regulator stops
the heating of the cooking chamber; i.e. when the set
temperature inside the cooking chamber is reached. This
intermittent control does not depend on the programmed
fan speed. During the heating stage, the fan control is not
activated. When working with this version, the indicator
light above the button comes on.
PROGRAMMING COOKING START TIMES
COOK AND HOLD
(Fig.3 No.7)
This patented low temperature cooking programme is
recommended for ”Hot-air and Steam” cooking modes. Upon
pressing the ”COOK & HOLD” button, the relative indicator
lights above these buttons start blinking.
If the desired cooking programme is chosen by pressing
the ”HOT AIR” or ”STEAM” button, a fixed programme is
set with the following sequence:
1.The heating power (hot air or steam) is reduced to 50%. 2.In
the same way, the fan rotation speed is also reduced.
In addition, the fan works intermittently after the regulated
temperature in the cooking chamber has been reached (low
temperature range). If this programme is activated, the
relative indicator light comes on. The cooking process is
switched off automatically once the set time has elapsed.
ECO-DELTA COOKING
(Fig.3 No.9)
For this cooking process, a temperature value between
0°C and 99°C may be selected by which the cooking
chamber temperature will be above the product’s core
temperature.
Upon activating this programme, the indicator light above
the button comes on.
(Fig.3 No.10)
With this function it is possible to memorize a specific
time; the appliance automatically comes on and starts the
set cooking process once the time set by means of this
button has elapsed. While this programme is in operation,
the indicator light above the button remains on.
After having programmed the cooking time, you have
to set the cooking proces you intend to use as in 2nd
Cook Step.
COOKING CHAMBER TEMPERATURE
(Fig.3 No.17)
Programming the desired temperature inside the cooking
chamber. The temperature may be set anywhere between
30°C and 300°C with hot air, using the knob.The temperature
range between 250°C and 300°C is limited to a time of 10
minutes. This enlarged temperature range ensures fast
preheating of the empty appliance or a high stand-by
temperature ready for loading the food. During the
programming stage the set temperature appears on the
display above the knob. If this value is not changed, the
appliance automatically changes to visualize the actually
measured cooking chamber temperature.
ACTUAL COOKINGTIME
POWER STAGE SELECTION
(Fig.3 No.6)
POWER STAGE 1
High fan speed - 100% heating power.
In neutral conditions, i.e. when the electrical circuit is
activated, the two indicator lights are off.
POWER STAGE 2
Reduced fan speed - 100% heating power.
By pressing the button once, the indicator light above the
fan symbol comes on.
POWER STAGE 3
High fan speed - 50% heating power.
By pressing the button a second time, the indicator light
above the coil symbol comes on.
POWER STAGE 4
Reduced fan speed - 50% heating power.
By pressing the button a third time, the two indicator lights
(fan and coil) come on.
Upon pressing the button again, the two indicator lights go
off and the control circuit goes back to its initial position,
i.e. in the power stage 1 position.
14
(Fig.3 No.18)
Programming the desired cooking time. A cooking time of
anywhere between 1 minute and 8 hours may be set by
using the relative knob. During the programming stage the
set cooking time appears on the display above the knob.
Upon activating the cooking process the count-down runs
minute by minute and the remaining cooking time appears
on the display. Continuous operation is activated by
exceeding the setting of 8 hours; ”CONT” appears on the
display.
Note: selecting a cooking programme which stops the
cooking process when the set core temperature is reached,
excludes the possibility of programming a cooking time.
CORETEMPERATURE
(Fig.3 No.19)
With this procedure the cooking time depends on the set
core temperature of the roast. In fact, apart from the core
temperature, the only parameter to be set is the cooking
chamber temperature. The required temperature may be set
anywhere between 0°C and 99°C by means of the knob. During
the programming stage the set core temperature is indicated
on the display above the knob. If this value is not changed,
the appliance automatically changes to visualize the actually
measured core temperature.
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SPECIAL FUNCTIONS
COOKING CHAMBER STEAM RELEASE
EMPTYING THE STEAM GENERATOR
(Fig.3 No.23)
The appliance is fitted with a motor-operated discharge
valve. Under normal conditions it is closed and this is shown
by the indicator light above the symbol going out.
Upon pressing the button the valve opens so that the water
inside the steam generator can drain off. This operation is
shown by the relative indicator light coming on. Once the
boiler has been drained the button must be pressed again
to close the valve.
VALVE
(Fig.3 No.27)
The steam release valve usually fitted in this version is
motor-operated. It opens automatically by pressing on this
button. During the opening stage the relative indicator light
above the button blinks. Upon completion of opening, the
indicator light stops blinking and remains fixed. To close,
just press the button again.
During the closing stage, the indicator light blinks and goes
out when the valve is fully closed.
Three circular indicator lights, placed in the lower part of
the control panel, are indicating the following control
functions.
WARNING OF SCALE BUILD-UP IN THE
CLEAN
(Fig.3 No.24)
The ”CLEAN” programme is a cleaning, not a cooking
programme. It should be activated regularly at the end of a
working day with the air-o-steam® in order to clean the
appliance.
To activate this programme, press the button for about 3
seconds, after which the relative indicator light stops blinking
and remains on. The steam generator starts heating and
the cooking chamber is humidified. After the audible warning
signal, a detergent has to be sprayed onto the walls of the
cooking chamber including the air baffle sheets. Close the
door and press the ”CLEAN” button again. The countdown
of the action time for the detergent, i.e. 10 minutes, starts.
After this, restart the steam generator and let it operate for
another 20 minutes, during which all deposits are removed.
The indicator light comes on during the second stage. An
acoustic signal is activated at the end of the programme.
WASTE STEAM QUENCHING SYSTEM
(Fig.3 No.25)
This button can be used to activate or deactivate the
thermostatic waste steam quenching system in all the
cooking modes.
If the air-o-steam® is placed under a steam extraction hood,
the steam need not be condensed by spraying cold water
into the waste tube. This saves on water. Upon pressing
this button, the relative indicator light above the symbol
starts blinking, showing that the steam condensation device
is deactivated.
By pressing the button again, the system is re-activated in
normal condition and the water input control governed by a
thermostat allows the vapours to be condensed.
After water input, the relative indicator light comes on.
MANUAL HUMIDIFICATION
STEAM GENERATOR
(Fig.3 No.28)
When the indicator light relating to the symbol comes on,
this means that there is a build-up of scale in the steam
generator and on the heating elements. Descaling should
be carried out as quickly as possible. Detailed instructions
for chemical descaling of the entire system are given in
the chapter ”Cleaning and care”.
DOOR SAFETY
(Fig.3 No.29)
If the indicator light relating to this symbol comes on, the
door is not closed properly and consequently the ”STEAM”
and ”STEAM 1” cooking modes cannot be activated.
STEAM GENERATOR LEVEL GAUGE
(Fig.3 No.30)
The indicator light relating to the steam generator symbol
blinks whenever the water in the steam generator does not
cover the safety level mark.
If the indicator lights up continously, this means that the
steam generator is still being filled with water, the heating
elements, however, can be activated. The steam generator
is ready for use. When the indicator light goes out, this
means that the water level inside the steam generator is
correct and there is no need to top up.
(Fig.3 No.26)
This button may be used to increase the degree of humidity
inside the cooking chamber by introducing water. The water
input time is limited to about 5 seconds. The relative indicator
light is on during water input. The degree of humidity in the
cooking chamber may be altered to individual requirements
by pressing this button several times.
I-450-BE
15
4.4
Control panel - version X
ON/OFF SWITCH
COOK-STEP
(Fig.4 No.1)
The ON/OFF switch is used to switch the appliance and
controls on or off. To switch the appliance on, lightly press
the button; to switch off keep the button pressed down for
about 3 seconds. This time delay avoids accidental
switching off during a cooking cycle.
When the appliance is switched off, this is indicated by
the green indicator light above the button going out. When
the appliance is switched on it lights up.
Note: upon switching off the appliance, wait at least 5
seconds before switching on again.
(Fig.4 No.5)
With this COOK-STEP storage, a cooking of cycle
consisting of six different sequences may be set: e.g.
browning, cooking and keeping the food warm.
Programming the sequences is described under ”Storage
of cooking programmes”.
The relative indicator lights have two colours showing the
COOK-STEP of the cooking process and the number of
programmed COOK-STEPS.
If the red indicator light is on, the COOK-STEP is working.
All the other programmed sequences which are not in
operation are shown by green indicator lights.
Indicator lights which are not on, correspond to the unused
COOK-STEPS.
Changing from one sequence to another is indicated by a
buzzer.
PROG/AUTO
(Fig.4 No.2)
The ”PROG/AUTO” button can be used to set automatic
operation with all stored data or operation in the
programming mode. After having switched on the
appliance, the indicator lights to the side of the button
start blinking.
Pressing the touch pad once sets the ”PROG” mode; the
relative indicator light stops blinking and remains on. The
indicator light corresponding to the ”AUTO” mode goes
out. To change to the ”AUTO” mode, press the button again.
The change is shown by the relative indicator light coming
on.
Note: It is only possible to change to the ”AUTO” mode if
a cooking programme has been stored. Operation in the
”AUTO” mode is shown by the relative indicator light above
the button coming on.
START
STOP
START/STOP
(Fig.4 No.3)
After having selected all data necessary for the cooking
process, such as temperature, cooking time, cooking mode
and fan speed, the cooking process may be started using
the ”START/STOP” button. The relative yellow indicator
light comes on.
This cooking cycle may be interrupted by pressing the
button during operation for more than 3 seconds.
COOKING PROGRAMMES
(Fig.4 No.4)
If the cooking programmes have been stored (for storage
see paragraph ”Storage of cooking programmes”), they
may be selected using the increase and decrease buttons.
99 cooking programmes may be stored with a maximum
of 6 ”COOK-STEPS”, i.e. sub-programmes. If one of these
programmes is temporarily changed (e.g. the values
regarding temperature or cooking times), the selected
programme number will blink. If the change is not stored,
it will be erased when the appliance is switched off. To
return to the original programme, just press the button for
3 seconds.
16
POWER STAGE SELECTION
(Fig.4 No.6)
POWER STAGE 1
High fan speed - 100% heating power.
In neutral conditions, i.e. when the electrical circuit is
activated, the two indicator lights are off.
POWER STAGE 2
Reduced fan speed - 100% heating power.
By pressing the button once, the indicator light above the
fan symbol comes on.
POWER STAGE 3
High fan speed - 50% heating power.
By pressing the button a second time, the indicator light
above the coil symbol comes on.
POWER STAGE 4
Reduced fan speed - 50% heating power.
By pressing the button a third time, the two indicator lights
(fan and coil) come on.
Upon pressing the button again, the two indicator lights
go off and the control circuit goes back to its initial position,
i.e. in the power 1 position.
COOK AND HOLD
(Fig.4 No.7)
This low temperature cooking programme is recommended
for ”Hot-air” and “Steam” programmes. Upon pressing the
”COOK & HOLD” button, the relative indicator lights above
the button start blinking.
If a programme is chosen by pressing the ”HOT AIR” or
”STEAM” button, a fixed programme is set with the
following sequence:
1.The heating power (hot air or steam) is reduced by 50%.
2.In the same way, the fan speed is also reduced.
In addition, the fan works intermittently after the regulated
temperature in the cooking chamber has been reached
(low temperature range).
If this programme is activated, the indicator light related
to this button comes on. The cycle stops when the set
time has elapsed.
I-450-BE
INTERMITTENT FAN OPERATION (Fig.4 No.8)
Intermittent fan operation is obtained in this position, i.e.
the fan starts and stops at programmed intervals.
This intermittent control is activated when the regulator
stops the heating of the cooking chamber; i.e. when the
set temperature is reached. This control does not depend
on the programmed fan speed.
During the preheating stage, it is not activated. When
inserting this variant, the indicator light above the button
comes on.
ECO-DELTA COOKING
(Fig.4 No.9)
For this cooking process, a temperature value anywhere
between 0°C and 99°C may be selected by which the
cooking chamber temperature will be above the product
core temperature.
Upon activating this programme, the indicator light above
the button comes on.
PROGRAMMING COOKING START TIME
(Fig.4 No.10)
The appliance automatically comes on and starts the
cooking process once the time set by means of this button
has elapsed.
While this programme is in operation, the indicator light
above the button remains on.
After having programmed the cooking time, you have
to set the cooking proces you intend to use as in 2nd
Cook Step.
HOT AIR
(Fig.4 No.11)
In this position only the heating of the cooking chamber
is activated, which means just hot-air operation.
STEAM
(Fig.4 No.12)
In this position only the steam generator heating elements
are activated, which means steam operation between 30
- 100°C.
STEAM 1
(Fig.4 No.13)
In this position the heating of the cooking chamber is
activated as well as the steam generator heating elements
in the proportion of 75% hot air and 25% steam.
STEAM 2 - REGENERATION
(Fig.4 No.14)
In this position the heating of the cooking chamber is
activated as well as the steam generator heating elements
in the proportion of 50% hot air and 50% steam.
button comes on. The real value, i.e. the value read inside
the cooking chamber will be automatically displayed about
5 seconds after having released the button.
HUMIDITY REGULATION
Humidity regulation operates in the following cooking
programme:
STEAM 2 - Regeneration
This regulation is used to change and consequently to
establish individually the degree of humidity of the cooking
mode within a certain range.
It is also possible to store the humidity level required in
the corresponding cooking programmes.
Pressing the increase and decrease buttons sets the
required humidity in the cooking chamber, which may be
regulated by levels.
COOKING CHAMBER TEMPERATURE
(Fig.4 No.17)
The temperature may be set anywhere between 30°C and
300°C with hot air, using the increase and decrease buttons.
The temperature range between 250°C and 300°C is limited
to a time of 10 minutes.
This wide temperature range ensures fast preheating of
the empty appliance or a high stand-by temperature ready
for loading the food. In the ”Steam 1” and ”Steam 2” cooking
modes, the programmable temperature goes from 30°C to
250°C. In the ”Steam” cooking mode, the temperature is
automatically limited to 100°C.
ACTUAL COOKING TIME
(Fig.4 No.15)
During a cooking process, the actual temperature and time
values, i.e. the measured values, are shown on the
respective displays.
If the user wishes to know which temperatures and cooking
times have been set, the ”SET POINT” button must be
pressed. The displays will show the set values, i.e. the
values which should be reached. The indicator light of this
I-450-BE
(Fig.4 No.18)
A cooking time of anywhere between 1 minute and 8 hours
as well as continuous operation may be set by means of
the increase and decrease buttons.
During the programming stage the set cooking time appears
on the display above the increase and decrease buttons.
Continuous operation is activated by setting a time which
exceeds 8 hours or by directly pressing the decrease button
in the neutral position. ”CONT” appears on the display.
Note: selecting a cooking process which stops when the
set core temperature is reached, excludes the possibility
of programming a cooking time.
CORE TEMPERATURE
SET POINT
(Fig.4 No.16)
(Fig.4 No.19)
The required temperature may be set anywhere between
0°C and 99°C by means of the increase and decrease
buttons. With this procedure the cooking time depends on
the set core temperature of the roast.
In fact, apart from the core temperature, the only parameter
to be set is the cooking chamber temperature. It is
impossible to set the time.
17
SPECIAL FUNCTIONS
COOKING CHAMBER STEAM RELEASE
EMPTYING THE STEAM GENERATOR
(Fig.4 No.23)
The appliance is fitted with a motor-operated discharge
valve. Under normal conditions it is closed and this is shown
by the indicator light above the symbol going out.
Upon pressing the button the valve opens so that the water
inside the steam generator can drain off. This operation is
shown by the relative indicator light coming on. Once the
boiler has been drained the button must be pressed again
to close the valve.
CLEAN
(Fig.4 No.24)
The ”CLEAN” programme is a cleaning, not a cooking
programme. It should be activated regularly at the end of a
working day with the air-o-steam® in order to clean the
appliance.
To activate this programme, press the button for about 3
seconds, after which the relative indicator light stops blinking
and remains on. The steam generator starts working and
the cooking chamber is humidified. After the audible warning
signal, a detergent has to be sprayed onto the walls and
the air baffles inside the cooking chamber. Close the door
and press the ”CLEAN” button again. The countdown of the
action time for the detergent, i.e. 10 minutes, starts. After
this, the steam generator continues to operate for another
20 minutes, during which all deposits are removed. The
indicator light comes on during the second stage. An
acoustic signal is activated at the end of the programme.
WASTE STEAM QUENCHING SYSTEM
(Fig.4 No.25)
This button can be used to activate or deactivate the
thermostatic waste steam quenching system in all the
cooking modes.
If the air-o-steam® is placed under a steam extraction hood,
the steam need not be condensed by spraying cold water
into the waste tube. This saves on water. Upon pressing
this button, the relative indicator light above the symbol
starts blinking, showing that the steam condensation device
is deactivated.
By pressing the button again, the system is re-activated
and the water input control governed by a thermostat allows
the steam to be condensed. After water input, the relative
indicator light comes on.
MANUAL HUMIDIFICATION
VALVE
(Fig.4 No.27)
The steam release valve usually fitted in this version is
motor-operated. It opens automatically by pressing on this
button.
During the opening stage the relative indicator light above
the button blinks. Upon completion of opening, the indicator
light stops blinking and remains on. To close, just press
the button again. During the closing stage, the indicator
light blinks and goes out when the valve is fully closed.
Three circular indicator lights, placed in the lower part of
the control panel, are indicating the following control
functions.
WARNING OF SCALE BUILD-UP IN THE
STEAM GENERATOR
(Fig.4 No.28)
When the indicator light relating to the symbol comes on,
this means that there is a build-up of scale in the steam
generator and on the heating elements. Descaling should
be carried out as quickly as possible. Detailed instructions
for chemical descaling of the system are given in the
chapter ”Cleaning and care”.
DOOR SAFETY
(Fig.4 No.29)
If the indicator light relating to this symbol comes on, the
door is not closed properly and consequently the ”STEAM”
and ”STEAM 1” cooking modes cannot be activated.
STEAM GENERATOR LEVEL GAUGE
(Fig.4 No.30)
The indicator light relating to the steam generator symbol
blinks whenever the water in the steam generator does not
cover the safety level mark.
If the indicator lights up continously, this means that the
steam generator is still being filled with water, the heating
elements, however, can be activated. The steam generator
is ready for use. When the indicator light goes out, this
means that the water level inside the steam generator is
correct and there is no need to top up.
(Fig.4 No.26)
This button may be used to increase the degree of humidity
inside the cooking chamber by introducing water.
The water input time is limited to about 5 seconds. The
relative indicator light above the button is on during water
input. The degree of humidity in the cooking chamber may
be altered to individual requirements by pressing this button
several times.
18
I-450-BE
STORAGE OF COOKING PROGRAMMES
CHANGING AND COMPLETING COOKING PROGRAMMES
To store a COOK-STEP or a set sequence in the ”PROG”
mode under a well-defined programme number, press the
and
buttons simultaneously for about 1.5 seconds.
The indicator light above the button
blinks for 1.5
seconds and then remains fixed. The display relating to
the cooking programmes is now activated and the increase
and decrease buttons may be used to choose a programme
number.
Make sure that the figures corresponding to programmes
that are already stored are always lit. The free storage
positions may be identified by the fact that the relative
number blinks. Choose a free storage position and then
press button
for about 1.5 seconds until the relative
blinking indicator light remains fixed.
To exit from the storage programme, press the
and
buttons simultaneously until the above-mentioned yellow
indicator light goes out.
The set cooking programme can now be found under the
chosen programming number. If an error occurs during
programming or if nothing has been stored, this sequence
may be interrupted. If the indicator light corresponding to
the
button comes on, it is possible to exit from the
storage mode by pressing on the same.
Note: it is advisable to mark each parameter and set-up of
the stored cooking programmes in a table. This will ensure
correct combination between the different cooking modes
and programmes. This table also allows the programmes
to be rapidly stored again after any work carried out on the
electronic circuit by a technician.
ERASING A COOKING PROGRAMME
Using the button , select the ”AUTO” mode; the relative
indicator light comes on. Then press the and buttons
simultaneously for about 1.5 seconds. The indicator light
above button
blinks for 1.5 seconds and then remains
fixed. Access to the stored programmes may now be gained
and the display for the cooking programmes is activated.
Using the increase and decrease buttons, the cooking
programme to be erased may be selected. Only a stored
programme number may be erased, i.e. the programme
number must appear lit up on the display.
CLEAR ENTRY
(Fig.4 No.20)
Using the ”CLEAR ENTRY” button, the programme may
now be erased. Press the button until the number with a
fixed light on the display, corresponding to the programmes,
starts blinking, i.e. when the programme in question is in a
changeable buffer storage.
To exit from the erasing process and to erase the actual
cooking programme from the buffer storage, press buttons
and
again until the yellow indicator light relating to
button
goes out.
The programme is erased from the memory and this storage
position is consequently free.
I-450-BE
To change a stored programme, proceed as for the erasing
stage. Follow the same sequence of operations described
above in the paragraph ”Erasing a cooking programme”,
including pressing the ”CLEAR ENTRY” button.
The programme in question is now in a buffer storage. This
is shown by a blinking number on the display corresponding
to the programmes. The parameters may now be changed
or the COOK-STEPS completed or erased. Press the two
+
simultaneously until the yellow indicator
buttons
light relating to button
goes out. The change is now
stored.
OPERATING IN THE ”AUTO” MODE
After having switched on the appliance and chosen the
”AUTO” mode, the required cooking programme may be
recalled using the increase and decrease buttons.
All stored values and the cooking programme data are
shown by the relative indicator lights coming on. In addition,
the ”COOK-STEP” button may be used to recall the different cooking sequences.
START
STOP
START/STOP
(Fig.4 No.3)
In the ”PROG” mode, after having selected the cooking
time, temperature, cooking mode and fan speed or a cooking
programme stored in the ”AUTO” mode, the cooking process
may be activated using the ”START/STOP” button. The
relative yellow indicator light comes on. The cooking process
may be interrupted by pressing on the ”START/STOP” button
for more than 3 seconds.
ALARM AND SELF-DIAGNOSIS
The system has the possibility of indicating failures and
operating anomalies on the display corresponding to the
cooking chamber temperature and the core temperature.
E Pt 1 Interruption or short-circuit of the temperature
sensor inside the cooking chamber
E Pt 2 Interruption or short-circuit of the temperature
sensor inside the steam generator
E Pt 3 Interruption or short-circuit of the core
temperature sensor
E Pt 4 Interruption or short-circuit of the temperature sensor
inside the by-pass tube (steam regulation)
E Pt 8 Interruption or short-circuit of the temperature
sensor on the electronic PC-board
E SCH Overheating of the electronic PC-board due to
lack of cooling air
E tub Intervention of the temperature limiter inside the
steam generator (T > 180°C)
E tuc Intervention of the temperature limiter inside the
cooking chamber (T > 320°C)
ECuP Break of the cooking time limitation (T >250°C)
EFLP Failure of the motor-activated steam release valve
for the cooking chamber (valid only for VIII, X)
Note: In the event of failure, a continuous audible alarm
can be heard and the error code is stored. The cooking
process may continue, e.g. in the event of failure of the
meat probe with the time as new parameter.
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5.
CLEANING AND MAINTENANCE
The appliance must be cleaned thoroughly at the end of
each working day. The appliance is protected against water
jets (type of protection IPX5). This type of protection,
however, does not permit cleaning with a water hose or
high-pressure jets.
General indications
Under no circumstances must the drain pipe be obstructed,
whether due to fats or food particles. It is therefore
necessary to clean the drain pipe regularly and rinse it by
flushing through with water.
The filter must always be inserted in the cooking chamber.
Recommendations for daily cleaning:
Rinse the steam generator every day. For versions VII,
VIII and X of the appliance, a motor-operated drain cock
is installed (for operation see indications under “Special
functions - EMPTYING THE STEAM GENERATOR”). Close
the drain cock before operation. It is advisable to activate
this cycle at the end of each working day, to avoid a buildup of scale on the heating elements and to reduce the
normal scale considerably on the other parts.
This operation is very simple:
1. Put the appliance in the “Steam” and “Full power”
operating mode.
2. As soon as steam is being produced, i.e. when the glass
of the window begins to steam up, open the steam
generator discharge cock.
3. Close the discharge cock again after 2 minutes have
elapsed. The steam generator will automatically refill
with water.
For daily cleaning of the cooking chamber, put the appliance
in the “Steam” mode for about 5 min. Then open the door
and spray a cleaning product inside the cooking chamber.
Depending on how dirty it is, leave the product to act for
about 15 - 30 min. Start the appliance again in the “Steam”
mode and leave for about 10 min. Then remove all residues
by rinsing with a hose or wiping out with a cloth or sponge.
To clean more thoroughly, the air buffles may be detached
or the trolley structure removed. If the fat filter is installed,
detach it from the ventilation panel and disassemble.
Remove the retaining wire from around the filter frame and
remove each component element. The ventilation panel
may be easily removed after loosening the two top nuts
(SW 10), by moving it up and draw the lower part slightly
forwards. Proceed with cleaning the cooking chamber and
the disassembled pieces. The water will be discharged
through the drain pipe. Replace the pieces following the
above procedure in the reverse order. When reassembling,
make sure that the check pin holds the ventilation panel
firmly in place.
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A few more important instructions to be observed in order
to get the most from your new convection-steamer air-osteam®.
1. When the appliance is switched off, leave the door slightly
open so that air may circulate freely inside the cooking
chamber, letting the remaining humidity escape, the
cooking chamber is ventilated and stays clean.
2. Check that the safety valve is clean and working
properly. No steam should escape during operation. The
valve casing should be easily removable.
3. Occasionally coat the door seal with a special grease
“Nontrop PLB DR” (50 or 20 g tube, order No. 400 107)
on the indicated places.
4. Never use sharp objects on the seal.
5. The convection-steamers air-o-steam® are protected
against water jets (type of protection IPX5). This type
of protection, however, does not permit cleaning with
high-pressure jets!
6. Make sure that the cooking chamber steam release
aperture situated above the appliance is not obstructed
by plates or cloths.
7. During periods of longer inactivity, e.g. at night,
weekends, early closing days, holidays, etc., the
appliance must be disconnected from the electricity and
gas mains supply, the main gas valve must be closed
and the door left open.
DESCALING THE STEAM GENERATOR WITH
CHEMICAL PRODUCTS
The softened water supply should have a hardness of
5 - 7°dH. If the degree of hardness is higher, a suitable
water softener (ionisation) must be installed. From time to
time the steam generator must be completely descaled.
The intervals between each descaling operation depends
on the frequency of use of the appliance and the hardness
of the water.
1. Make sure that air circulates freely in the room where
the appliance is installed.
2. Wear protective clothing, glasses and gloves.
3. Use a descaler for the steam generator.
4. With the appliance switched off, empty the steam
generator. Then close the drain cock of the appliance
(or press the button corresponding) .
5. Remove the rubber plug situated on the upper external
part of the appliance. Using a funnel, slowly pour in the
prepared solution of water and descaler so that it trickles
into the steam generator. Leave the product to act for 1
hour and then open the drain cock.
6. Carefully rinse the steam generator and the filling pipe
with clean water. Replace the safety device.
7. Carry out a steam cycle for 10 minutes, then empty the
steam generator again.
8. Lastly, check if there are still traces of descaler in the
steam generator or in the cooking chamber. This can
be done very simply: place half a cup of fresh milk in
the cooking chamber, close the door and start steam
cooking. If the milk begins to curdle after a few minutes,
another rinsing cycle must be carried out following the
instructions given in point 6.
I-450-BE
Replacing the cooking chamber seal
The cooking chamber seal is subject to ageing and
deteriorates in time. It should therefore be replaced at the
first sign of hardening, breaking or cracking.
To replace, proceed as follows:
Manually remove the seal from its groove.
Clean any traces of dirt to be found in the seal groove and
apply a little heat-resistant silicone in the four corners.
Fit the new seal and apply silicone on the borders for sealing.
First of all insert the seal into the four corners. Make sure
it is correctly inserted into these points.
Replacing the cooking chamber light bulb
If a cooking chamber halogen light burns out and therefore
needs to be replaced, proceed as follows:
Disconnect the appliance from the electricity mains supply.
Remove the light bulb guard ring using a screwdriver.
Remove the halogen light. Using a cloth or a glove as
protection, remove the new halogen light from its packing
and insert it into the lamp-holder.
Never touch the halogen lamp with bare hands.
Maintenance contract
Dear Sir/Madam,
Apart from the regular cleaning and maintenance
operations, your air-o-steam® appliance should undergo
maintenance by a qualified technician to ensure that its
qualities remain unchanged.
We therefore advise you to take out a maintenance contract
so that you can enjoy maximum operating safety.
Please contact your supplier.
Under your maintenance contract, your appliance will
undergo complete checks at programmed intervals when
any necessary adjustment and maintenance operations will
be carried out.
Never touch the halogen lamp with bare hands.
Only use halogen lights supplied by the spare parts aftersales service. Clean the protective glass and screw it back
into place with its guard and seal.
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