DeLonghi DFS 090 DO Operation instructions

DFS 090 DO
Twin cavity
Dual Fuel Cooker
Users Operating Instructions
Before operating this cooker,
please read these instructions carefully
GB

2
Introduction
Congratulations on your purchase of this Delonghi Dual fuel cooker which has been
carefully designed and produced to give you many years of satisfactory use.
Before using this appliance it is essential that the following instructions are carefully read and
fully understood.
We would emphasise that the installation section must be fully complied with for your safety
to ensure that you obtain the maximum benefits from your appliance.
CE Declaration of conformity
This cooker has been designed, constructed and marketed in compliance with:
- safety requirements of EEC Directive “Gas” 90/396;
- safety requirements of EEC Directive “Low voltage” 73/23;
- protection requirements of EEC Directive “EMC” 89/336;
- requirements of EEC Directive 93/68.
This appliance is designed and manufactured solely for the cooking of domestic
(household) food and in not suitable for any none domestic application and therefore
should not be used in a commercial environmement.
The appliance guarantee will be void if the appliance is used within a none domestic
environnement i.e. a semi commercial, commercial or communal environment.
GB

3
Important precautions and recommendations
After having unpacked the appliance, check to ensure that it is not damaged.
In case of doubt, do not use it and consult your supplier or a professionally qualified techni-
cian.
Packing elements (i.e. plastic bags, polystyrene foam, nails, packing straps, etc.) should not
be left around within easy reach of children, as these may cause serious injuries.
■Do not attempt to modify the technical characteristics of the appliance as this
may become dangerous to use.
■Do not carry out cleaning or maintenance operations on the appliance without
having previously disconnected it from the electric power supply.
■After use, ensure that the knobs are in off position.
■Do not allow children or other incapable people to use the appliance without
supervision.
■During and after use of the cooker, certain parts will become very hot. Do not
touch hot parts.
■Keep children away from the cooker when it is in use.
■Some appliances are supplied with a protective film on steel and aluminium
parts. This film must be removed before using the appliance.
■Fire risk! Do not store flammable material in the oven, and in the storage
compartment.
■Make sure that electrical cables connecting other appliances in the proximity of
the cooker cannot come into contact with the hob or become entrapped in the
oven door.
■Do not line the oven walls with aluminium foil. Do not place baking trays or the
drip tray on the base of the oven chamber.
■The manufacturer declines all liability for injury to persons or damage to property
caused by incorrect or improper use of the appliance.
■To avoid any possible hazard, the appliance must be installed by qualified
personnel only. Any repairs by unqualified persons may result in electric shock or
short circuit. In order to avoid possible injuries to your body or to the appliance,
do not attempt any repairs by yourself. Such work should be carried out by
qualified service personnel only.
■Danger of burns! The oven and cooking accessories may become very hot during
operation. Make sure children are kept out of reach and warn them accordingly.
To avoid burns use kitchen clothes and gloves when handling hot parts or
utensils.
■Never clean the oven with a high-pressure steam cleaning device, as it may
provoke a short circuit.
■This appliance is intended for use in your household. Never use the appliance
for any other purpose!

4
1 Features and technical data
Gas burners
1. Auxiliary burner (A) 1,00 kW
2. Semi-rapid burner (SR) 1,90 kW
3. Rapid burner (R) 3,15 kW
4. Double-ring burner (PB) 3,45 kW
Fig. 1.1
2
4
2
1
3
NOTE:
✓The electric ignition is incorporated in the knobs

5
2 Control panel
A
U
T
O
12 45 78910
CONTROL PANEL - Controls description
1. Electronic clock/end cooking timer (main left oven only)
2. Fan main oven thermostat knob
3. Fan main oven switch knob
4. Front left burner control knob
5. Rear left burner control knob
6. Central burner control knob
7. Rear right burner control knob
8. Front right burner control knob
9. Conventional oven switch knob
10. Conventional oven thermostat knob
Pilot lamps:
11. Main oven thermostat indicator light
12. Conventional oven thermostat indicator light
3
11 12
Fig. 2.1
6

6
3 Electronic clock/end cooking timer
(main left oven only)
A
U
T
O
The electronic programmer is a device
with the following functions:
– 24 hours clock with illuminated display
– Timing of oven cooking with automatic
switch-off (max. 99 minutes).
Electronic clock
Upon immediate connection of the oven
or after a mains failure, three zeros will
flash on the programmer panel.
To set the clock it is necessary to push the
button and then, within 7 seconds, the
or button until you have set the
correct time.
The clock will show zero after a mains
failure.
Attention: When the programmer display
shows three flashing zeros the oven
cannot be switched on.
The oven can be switched on when the
symbol is shown in the display.
Cooking with automatic
switch-off (main left oven only)
The aim of this function is to automatically
stop the cooking after a pre programmed
time, for a maximum period of 99 minutes.
To set the cooking time, push the or
button until you obtain the desired
time in the display. The symbol AUTO
will be shown in the display. Then you
adjust the oven thermostat knob accord-
ing to the required temperature. The oven
will immediately start to operate and will
work for the pre programmed time. The
display shows the count down. Clock
time can be displayed by pressing the
button. Once the time has elasped, the
oven will switch off automatically, the
symbol AUTO will go off and an intermit-
tent buzzer, lasting 7 minutes, will start;
this can be stopped by pressing the
button.
Important: Before the buzzer is
stopped switch off the oven manually.
To cancel the cooking program at any time
press the and buttons together and
release the button first.
Setting the frequency of
the alarm sound
The selection from 3 possibilities of
sound can be made by pressing the
button. Electronic alarm
The programmer can be used as an alarm
only for a maximum period of 99 minutes.
To set the alarm, push the or
button until you obtain the desired time in
the display. Once the time has elasped,
an intermittent buzzer, lasting 7 minutes,
will start; this can be stopped by pressing
the button.
Attention: If the bottom oven is
switched on when the buzzer starts, it
will be automatically switched off. For
it to operate furtherly you have to stop
the buzzer by pressing the button.
Fig. 3.1

7
4 How to use the hob burners
Hob burners
Each hob burner is controlled by a
separate gas tap operated by a control
knob (fig. 4.1) which has 3 positions
marked on the control panel, these are:
– Symbol ●: tap closed (burner off)
– Symbol : High (maximum)
– Symbol : Low (minimum)
Push in and turn the knob anti-clockwise
to the selected position.
Lighting of the hob burners
To ignite the burner, the following instructions are to be followed:
1) Lightly press and turn the knob anti-clockwise, and position the knob indicator to the
symbol printed on the control panel (fig. 4.1).
2) Press the knob to operate the electric ignition; or, in the case of a mains failure light the
burner with a match or lighted taper.
3) Adjust the burner according to the setting required.
Low High
To turn the burner off, fully rotate the knob clockwise to the off position: ●.
The maximum setting of the control tap is for boiling, the minimum setting is for slow
cooking and simmering.
All working positions must be choosen between the maximum and minimum setting, never
between the maximum setting and the “OFF” position.
Fig. 4.1
Electric ignition
The sparks generated by the electrodes close to the burners will ignite the choosen
burner. Whenever the lighting of the burners is difficult due to peculiar conditions of
the gas features or supply, it is advised to repeat the ignition with the knob on
“minimum” position.

8
Correct use of double-ring burner
The flat-bottomed pans are to be placed directly onto the pan-support.
To use the WOK you need to place the proper stand in order to avoid any faulty
operation of the double-ring burner (Fig. 4.3a - 4.3b).
IMPORTANT:
The special grille for wok pans (fig. 4.3b) MUST BE PLACED ONLY over the pan-rest for the
double-ring burner.
Fig. 4.3a
WRONG
Fig. 4.3b
CORRECT
Burners Pan diameter
Auxiliary 16 cm
Semi-rapid 16 ÷ 22 cm
Rapid 20 ÷ 24 cm
Double-ring up to 30 cm
do not use pans with concave or convex bases
Fig. 4.2
Choice of burner
The burner must be choosen according to the diameter of the pans and energy required.
Saucepans with handles which are excessively heavy, in relationship to the weight of the
pan, are safer as they are less likely to tip.
Pans which are positioned centrally on burners are more stable than those which are offset.
It is far safer to position the pan handles in such a way that they cannot be accidentally
knocked.
When deep fat frying fill the pan only one third full of oil.
DO NOT cover the pan with a lid and DO NOT leave the pan unattended.
In the unfortunate event of a fire, leave the pan where it is and turn off all controls.
Place a damp cloth or correct fitting lid over the pan to smother the flames.
DO NOT use water on the fire.
Leave the pan to cool for at least 30 minutes.

9
5 How to use the Fan left oven (main oven)
General features
Attention: the oven door becomes
very hot during operation.
Keep children away.
The heating and cooking in electrical hot
air ovens take place by forced convection.
The two elements which make this
process take place are:
- Circular element 2500 W
- Grill element 2000 W
NOTE:
Upon first use, it is advisable to operate
the oven at the maximum temperature
(thermostat knob on position 250) for 60
minutes in the position (fan oven) and
for another 15 minutes in the position
(grill-thermostat knob on position 200°C),
to eliminate possible traces of grease on
the heating elements.
WARNING:
The door is hot, use the handle.
Operating principles
Heating and cooking in the FAN oven are
obtained in the following ways:
a. by forced convection
A fan sucks in the air contained in the
oven muffle, which sends it through the
circular heating element and then sends
it back through the muffle.
Before the hot air is sucked back again
by the fan to repeat the described
cycle, it envelops the food in the oven,
provoking a complete and rapid cook-
ing.
It is possible to cook several dishes
simultaneously.
b. by radiation
The heat is radiated by the infra red grill
element.
c. by ventilation
The food is defrosted by using the fan
only function without heat.

10
Fig. 5.1 Fig. 5.2
Function selector knob (Fig. 5.2)
Rotate the knob clockwise to set the oven for one of the following functions.
Thermostat knob (Fig. 5.1)
This only sets the cooking temperature and does not switch the oven on. Rotate clockwise
until the required temperature is reached (from 50 to 250°C).
The light above the temperature selector will illuminate when the oven is swiched on and
turns off when the oven reaches the correct temperature.
The light will cycle on and off during cooking in line with the oven temperature.
OVEN LIGHT
By setting the knob to this position, only the oven light comes on (15 W).
It remains on in all the cooking modes.
DEFROSTING FROZEN FOODS
Only the oven fan comes on. Use with the thermostat knob set to “●” - other positions have
no effect. The food is thawed by ventilation without heating.
Recommended for:
Quick thawing of frozen foods; one kg requires approximately 1 hour.
Thawing times vary according to the quantity and type of food to be thawed.

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Cooking advice
STERILIZATION
Sterilization of foods to be conserved, in full and hermetically sealed jars, is done in the
following way:
a. Set the switch to position .
b. Set the thermostat knob to position 185 °C and preheat the oven.
c. Fill the dripping pan with hot water.
d. Set the jars onto the dripping pan making sure they do not touch each other and
the door and set the thermostat knob to position 135 °C.
When sterilization has begun, that is, when the contents of the jars start to bubble,
turn off the oven and let cool.
HOT AIR COOKING
The circular element and fan come on. The heat is dispersed by forced convection and
the temperature can be regulated to between 50° and 250°C via the thermostat knob.
The oven does not require preheating.
Recommended for:
Food which has to be well-cooked outside and soft or rosy inside, for example
lasagne, lamb, roast beef, whole fish etc.
GRILLING
The infrared grill element comes on. The heat is dispersed by radiation.
Set the thermostat knob to between 50° and 200°C.
Always grill with the oven door closed.
For cooking hints, see the chapter “USE OF THE GRILL”.
Recommended for:
Intense grilling, browning, cooking au gratin and toasting etc.
Do not grill for longer than 30 minutes at any one time on full heat (200°C).
Caution: the oven door becomes very hot during operation.
Keep children well out of reach.

12
USE OF THE GRILL
Preheat the oven for about 5 minutes.
Introduce the food to be cooked, positioning the rack as close to the grill as possible.
The dripping pan should be placed under the rack to catch the cooking juices and fats.
Grilling with the oven door closed.
Do not grill for longer than 30 minutes at any one time on full heat (200°C).
Caution: the oven door becomes very hot during operation.
Keep children well out of reach.
ROASTING
To obtain classical roasting, it is necessary to remember:
– that it is advisable to maintain a temperature between 180° and 200 °C.
– that the cooking time depends on the quantity and the type of foods.
REGENERATION
Set the switch to position and the thermostat knob to position 150° C.
Bread becomes fragrant again if wet with a few drops of water and put into the oven for
about 10 minutes at the highest temperature.
SIMULTANEOUS COOKING OF DIFFERENT FOODS
The FAN consents a simultaneous heterogeneous cooking of different foods. Different foods
such as fish, cake and meat can be cooked together without mixing the smells and flavors
together. This is possible since the fats and vapors are oxidized while passing through the
electrical element and therefore are not deposited onto the foods.
The only precaution to follow are:
– The cooking temperatures of the different foods must be as close to as possible, with a
maximum difference of 20° - 25 °C.
– The introduction of the different dishes in the oven must be done at different times in rela-
tion to the cooking times of each one.
The time and energy saved with this type of cooking is obvious.
Safety precautions
During use the oven door glass becomes hot.
In the presence of children, in order to avoid contact with the hot door, a third internal glass
should be mounted.
This third internal glass is supplied on request as an optional (not included in price).
Please contact your retailer or the After-Sales Service, indicating the model bought.

13
General features
Attention: the oven door becomes very hot during operation.
Keep children away.
As its name indicates, this is an oven that presents particular features from an operational
point of view. The conventional oven is provided with 3 heating elements which are:
– Bottom element 800 W
– Top element 700 W
– Grill element 1450 W
NOTE:
Upon first use, it is advisable to operate the oven at the maximum temperature (thermostat
knob on position 250) for 60 minutes in the position and for another 15 minutes in the
position (thermostat knob on position 200°C), to eliminate possible traces of grease
on the heating elements.
WARNING:
The door is hot, use the handle.
Fig. 6.1 Fig. 6.2
6 How to use the Conventional right oven

14
TRADITIONAL CONVECTION COOKING
The upper and lower heating elements come on.
The heat is dispersed by natural convection and the temperature must be set to between
50° and 250°C via the thermostat knob. The oven must be preheated before cooking.
Recommended for:
Food that requires the same degree of cooking both inside and out, for example roasts,
spare pork ribs, meringues etc.
Function selector knob (Fig. 6.1)
Rotate the knob clockwise to set the oven for one of the following functions.
Thermostat knob (Fig. 6.2)
This only sets the cooking temperature and does not switch the oven on. Rotate clockwise
until the required temperature is reached (from 50 to 250°C).
The light above the temperature selector will illuminate when the oven is swiched on and
turns off when the oven reaches the correct temperature.
The light will cycle on and off during cooking in line with the oven temperature.
OVEN LIGHT
By setting the knob to this position, only the oven light comes on (15 W).
It remains on in all the cooking modes.
Operating principles
Heating and cooking in the CONVENTIONAL oven are obtained in the following ways:
a. by natural convection
The heat is produced by the upper and lower heating elements.
b. by radiation
The heat is radiated by the infra red grill element.

15
GRILLING
The infrared grill element comes on. The heat is dispersed by radiation.
Set the thermostat knob to between 50° and 200°C.
Always grill with the oven door closed.
For cooking hints, see the chapter “USE OF THE GRILL”.
Recommended for:
Intense grilling, browning, cooking au gratin and toasting etc.
Do not grill for longer than 30 minutes at any one time on full heat (200°C).
Caution: the oven door becomes very hot during operation.
Keep children well out of reach.
Use of the grill
Preheat the oven for about 5 minutes.
Introduce the food to be cooked, positioning the rack as close to the grill as possible.
The dripping pan should be placed under the rack to catch the cooking juices and fats.
Grilling with the oven door closed.
Do not grill for longer than 30 minutes at any one time on full heat (200°C).
Caution: the oven door becomes very hot during operation.
Keep children well out of reach.
Safety precautions
During use the oven door glass becomes hot.
In the presence of children, in order to avoid contact with the hot door, a third internal glass
should be mounted.
This third internal glass is supplied on request as an optional (not included in price).
Please contact your retailer or the After-Sales Service, indicating the model bought.

16
Oven cooking temperatures
Cooking guide
Temperature and times given are approximate, as they will vary depending on the quality
and amount of food being cooked.
Remember to use ovenproof dishes and to adjust the oven temperature during cooking if
necessary.
APPROX. HEAT OF TYPE OF DISH TO COOK
TEMPERATURE OVEN
125°C Very cool Meringue,
(257°F) oven slow cooking foods.
135°C - 140°C Cool or Milk puddings, very rich fruit
(275°F - 285°F) slow oven cakes, eg., Christmas.
150°C Cool or Stews, casseroles, braising,
(300°F) slow oven rich fruit cakes, eg., Dundee.
160°C - 170°C Warm oven Biscuits, Low temperature roasting,
(320°F - 338°F) rich plain cakes eg., Madeira cake.
180°C Moderate Plain cakes, eg., Victoria
(356°F) oven sandwich, meat pies.
190°C Fairly hot Small cakes, savoury flans,
(374°F) oven fish.
200°C Hot oven Plain cakes and buns, swiss rolls,
(392°F) fruit pies. High temp. roasting.
215°C Moderately Bread and bread rolls etc., scones,
(419°F) hot oven flaky and rough puff pastry,
Yorkshire pudding.
225°C Very hot Sausage rolls, mince pies, puff
(437°F) oven pastry.
Browning ready cooked dishes.

17
Important notes
Installation, and any demonstration, information or adjustments are not included in the
warranty.
The cooker must be installed by a qualified person in accordance with the Gas Safety
(Installation and Use) (Amendment) Regulations 1990 and the relevant building/l.E.E
Regulations.
Failure to install the appliance correctly could invalidate any manufacturers warranty and
lead to prosecution under the above quoted regulation.
In the UK C.O.R.G.I registered installers are authorised to undertake the installation and
service work in compliance with the above regulations. All Comet authorised installers are
C.O.R.G.I. registered.
Attention
The appliance gets very hot, mainly around the cooking areas. It is very
important that children are not left alone in the kitchen when you are cooking.
After Sales Service
Should you require to book a service call telephone [phone].
For product information and advise telephone [phone]

18
Do’s and do not’s
Do’s and do not’s
• Do always grill with the oven door closed.
• Do read the user instructions carefully before using the cooker for first time.
• Do allow the oven to heat for one and a half hours, before using for the first time, in order
to expel any smell from the new oven insulation, without the introduction of food.
• Do clean your oven regularly.
• Do remove spills as soon as they occur.
• Do always use oven gloves when removing food shelves and trays from the oven.
• Do not allow children near the cooker when in use.
• Do not allow fat or oils to build up in the oven trays, or oven base.
• Do not place cooking utensils or plates directly onto the oven base.
• Do not grill food containing fat without using the grid.
• Do not cover the grilling grid with aluminium-foil.
• Do not use the oven tray for roasting.
• Do not place hot enamel parts in water. Leave them to cool first.
• Do not allow vinegar, coffee, milk, saltwater, lemon or tomato juice to remain in contact
with enamel parts (inside the oven and on the oven tray).
• Do not use abrasive cleaners or powders that will scratch the surface of the stainless steel
and the enamel.
• Do not attempt to repair the internal workings of your cooker.
• Do remove the protective film before the first use.
• Fire risk! Do not store flammable material in the oven and in the storage compartment.
For your safety
The product should only be used for its intended purpose which is for the cooking of
domestic foodstuffs.
Under no circumstances should any external covers be removed for servicing or
maintenance except by suitably qualified personnel.

19
Cleaning the hob
Spillage on the hob can usually be removed by a damp soapy cloth. More obstinate stains
can be removed by rubbing gently with a soapy scouring pad or mild household cleaner.
Important:
As a safety measure, before you start cleaning the cooker be sure to disconnect it from the
mains supply.
Do not use a steam cleaner because the moisture can get into the appliance thus
make it unsafe.
6 Care and maintenance
Gas taps
If a tap becomes stiff, do not force; contact your local Service Centre.
Flexible tube
From time to time, check the flexible tube connecting the gas supply to the cooker.
It must be always in perfect condition; in case of damage arrange for it to be replaced by a
C.O.R.G.I. registered installer.
Cleaning oven parts after use
The oven interior and the chromium plated shelves can be cleaned by damp soapy cloth.
Obstinate stains can be removed with nylon scouring pads and gentle, non-abrasive, liquid
cleaner. Provided the oven is wiped over immediately after roasting, only the minimum of
cleaning should be necessary.
Stainless steel aluminium parts and silk-screen printed
surfaces
Clean using an appropriate product. Always dry thoroughly.
IMPORTANT: these parts must be cleaned very carefully to avoid scratching and abrasion.
You are advised to use a soft cloth and neutral soap.
CAUTION: Do not use abrasive substances or non-neutral detergents as these will
irreparably damage the surface.

20
Fig. 6.1
Burners
They can be removed and washed with soapy water only.
They will remain always perfect if cleaned with products used for silverware.
After each cleaning, make sure that the burner-caps, as well as the burners, have been well
wiped off and CORRECTLY POSITIONED.
It is essential to check the correct position of the burner-caps as the least displacement from
the housing may cause serious problems.
Special attention has to be paid in order not to exchange the housing of the
two small burners shown in fig. 6.1. The burner caps can be interchangeable.
Check also that the electrodes for ignition be always clean in order to ensure a regular
spark shooting.
Burner-cap ring
partially drilled Burner-cap ring fully drilled
Changing the oven light
1. Disconnect the electrical power supply (for example, by switching off the main
power switch).
2. Unscrew the light cover
3. Fit a new bulb.
4. Refit the cover.
Note:
Use only bulbs designed to resist up to 300°C with the following characteristics: 15 W,
230 V, type E-14.