Kenwood CK 640/1 Installation and operating instructions

Instructions for use - Installation advice
DUAL FUEL
MAXI COOKER
CK 640/1

2

3
CONTENTS
Page Number
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Important Safeguards & Recommendations . . . . . . . . . . . . . . . . 5
Cooking Hob Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
How to use the cooking hob . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 10
How to use the multi-function oven. . . . . . . . . . . . . . . . . . . . . . 11 - 16
How to use and set the electronic programmer. . . . . . . . . . . . . . 17 - 20
Cleaning & maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 27
Advice For The Installer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 - 33
Gas installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 - 38
Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 - 40
Service & Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Important:
This appliance is designed and manufactured solely for the cooking of domestic
(household) food and is not suitable for any non domestic application and therefore
should not be used in a commercial environment.
The appliance guarantee will be void if the appliance is used within a non domestic
environment i.e. a semi commercial, commercial or communal environment.
IMPORTANT INFORMATION FOR CORRECT DISPOSAL OF THE PRODUCT IN
ACCORDANCE WITH EC DIRECTIVE 2002/96/EC.
At the end of its working life, the product must not be disposed of as urban waste. It must
be taken to a special local authority differentiated waste collection centre or to a dealer
providing this service.
Disposing of a household appliance separately avoids possible negative
consequences for the environment and health deriving from inappropri-
ate disposal and enables the constituent materials to be recovered to
obtain significant savings in energy and resources. As a reminder of the
need to dispose of household appliances separately, the product is
marked with a crossed-out wheeled dustbin.

4
Read the instructions carefully before installing and using the appliance.
CAUTION: this appIiance must only be installed in a permanently ventilated room in
compliance with the applicable regulations.
Dear Customer,
Thank you for purchasing a Kenwood Dual Fuel Maxi Cooker.
The safety precautions and recommendations in these instructions are
for your own safety and that of others. They will also provide a means
by which to make full use of the features offered by your appliance.
Please keep this booklet in a safe place. It may be useful in the
future, either to yourself or to others in the event that doubts should
arise relating to its operation.
This appliance must be used only for its intended purpose , that is
for the domestic cooking of foodstuffs. Any other form of usage is to
be considered as inappropriate and therefore dangerous.
The manufacturer declines all responsibility in the event of damage
caused by improper, incorrect or illogical use of the appliance.
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.
GB
FIRST USE THE OVEN
It is advised to follow these instructions
– Furnish the interior of the oven by placing the wire racks as described in “Cleaning and main-
tenance”.
– Insert shelves and tray.
– Switch the empty oven on to max to eliminate grease from the heating elements. See page
11.
– Let the oven cool down and clean the interior of the oven with a cloth soaked in water and
neutral detergent, then dry carefully.

5
IMPORTANT SAFEGUARDS
AND RECOMMENDATIONS
After unpacking the appliance, check to
ensure that it is not damaged and that
the oven door closes correctly. If in
doubt, do not use and consult your sup-
plier or a professionally qualified techni-
cian.
Packing materials (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.
●ATTENTION: please peel plastic
cover off both sides and front of
the oven before use.
●Do not attempt to modify the technical
characteristics of the appliance as
this may cause danger to users.
●Do not carry out any cleaning or
maintenance operations on the appli-
ance without first disconnecting it
from the electric power supply.
●If you should decide not to use this
appliance any longer (or decide to
substitute an older model), before dis-
posing of it, it is recommended that it
is made inoperative in an appropriate
manner in accordance to health and
environmental protection regulations,
ensuring in particular that all poten-
tially hazardous parts be made harm-
less, especially in relation to children
who could play with unused appli-
ances.
●After use, always ensure that the con-
trol knobs are in the off position.
●Do not allow young children or infirm
persons to use the appliance without
your 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 or in the storage
compartment.
●Make sure that electrical cords con-
necting other appliances in the prox-
imity of the cooker cannot come into
contact with the hob or become
entrapped in the oven door.
●Do not line the oven walls with alu-
minium 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.
●The various components of the appli-
ance are recyclable. Dispose of them
in accordance with the regulations in
force in your country. If the appliance
is to be scrapped, remove the power
cord.
●Always use oven gloves when remov-
ing the shelves and food trays from
the oven whilst hot.
●Do not hang towels, dishcloths or
other items on the cooker or its han-
dle – as this could be a fire hazard.
●Clean the oven regularly and do not
allow fat or oils to build up in the oven
base or trays. Remove spillages as
soon as they occur.
●Do not stand on the cooker or on the
open oven door.
●Always stand back from the cooker
when opening the oven door to allow
steam and hot air to escape before
removing the food.
●This appliance is for domestic use
only.
●WARNING
When correctly installed, your product
meets all safety requirements laid down
for this type of product category.
However special care should be taken
around the rear or the underneath of
the appliance as these areas are not
designed or intended to be touched and
may contain sharp or rough edges, that
may cause injury.

6
Fig. 1.1
23
4
5
6
1
COOKING HOB
1. Triple-ring burner (PB) 3,50 kW
2. Semi-rapid burner (SR) 1,75 kW
3. Rapid burner (R) 3,00 kW
4. Auxiliary burner (A) 1,00 kW
5. Semi-rapid burner (SR) 1,75 kW
6. Auxiliary burner (A) 1,00 kW
1 - COOKING HOB

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Fig. 2.1
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98 65 321710
CONTROL PANEL - Controls description
1. Front right burner control knob
2. Rear right burner control knob
3. Rear central burner control knob
4. Front central burner control knob
5. Rear left burner control knob
6. Front left burner control knob
7. Multifunction oven temperature knob
8. Multifunction oven switch knob
9. Electronic programmer
Pilot lamps:
10. Oven temperature indicator light
2 - CONTROL PANEL
4

8
GAS BURNERS
Each burner is controlled by a gas tap
which opens and closes the gas supply.
Line the control knob symbol up with the
indicator on the control panel (fig. 3.1) to
obtain:
– symbol ●: off
– symbol : full on
(maximum rate)
– symbol : minimum rate
To reduce the gas flow to minimum,
rotate the knob anti-clockwise to point
the indicator towards the small flame
symbol.
Fig. 3.1 Fig. 3.2
3 - USE OF COOKING HOB
The maximum setting permits rapid boil-
ing of liquids, whereas the minimum set-
ting allows slower warming of food or
maintaining simmering conditions of liq-
uids.
Other intermediate operating can be
achieved by positioning the control knob
indicator between the maximum and
minimum setting, but not between the
maximum and off positions.
LIGHTING THE BURNERS
To ignite the burner:
1) Lightly press and turn the knob anti-
clockwise and position the knob
symbol to the indicator printed
on the control panel (fig. 3.2).
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.

9
DEEP FAT FRYING
For safety purposes when deep fat fry-
ing, do not fill the pan more than 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 the con-
trol knobs.
Place a damp cloth or lid over the pan to
smother the flames. Leave the pan to
cool for at least 30minutes before mov-
ing the pan.
DO NOT USE WATER ON THE FIRE.
CHOICE OF THE BURNER
On the control panel, near each knob,
there is a diagram that indicates which
burner is controlled by that knob.
Select the burner that is most suitable
for the diameter and capacity of the pan
to be used.
As an indication, the burners and the
pans must be used in the following way:
It is important that the base diameter of
the pot is at least the same diameter as
the burner ring to obtain an efficient heat
transfer.
Always position pans centrally over the
burners.
Adjust the size of the flame so that it
does not lick up the side of the pan.
Position pan handles so that they
cannot be accidentally knocked.
Fig. 3.3
AIR FLOW
(cooling fan) AIR FLOW (cooling fan) AIR FLOW (cooling fan)
CORRECT USE OF RAPID BURNER
Fig. 3.4
BURNERS POT DIAMETER
Auxiliary 12 - 14 cm
Semi-rapid 16 - 24 cm
Rapid 24 - 24 cm
Triple-ring 26 - 28 cm
do not use pans with concave
or convex bases (fig. 3.3)

10
Fig. 3.5b
Fig. 3.5a
WRONG CORRECT
CORRECT USE OF TRIPLE-RING
BURNER (Fig. 3.5a - 3.5b)
Flat-bottomed pans should be placed
directly onto the pan-support.
When using a WOK always place the
supplied stand in position over the burn-
er to maintain the correct operation of
the triple-ring burner (Fig. 3.5a - 3.5b).

11
Attention: the oven door becomes
very hot during operation.
Keep children away.
GENERAL FEATURES
The multi- function oven can be pro-
gramed for 7 different functions to satis-
fy every cooking need.
The 7 positions are thermostatically con-
trolled and are obtained by a combina-
tion of 4 heating elements which are:
– Bottom element 1725 W
– Top element 1725 W
– Grill element 2500 W
– Circular element 2500 W
NOTE:
Upon first use, it is advisable to operate the
oven for 30 minutes in the position and
for another 30 minutes at maximum (tem-
perature knob on position 225) in the posi-
tions and , to eliminate possible
traces of grease on the heating elements.
Clean the oven and accessories with warm
water and washing-up liquid.
WARNING:
The door is hot, use the handle.
OPERATING PRINCIPLES
Heating and cooking in the MULTI-
FUNCTION oven are obtained in the fol-
lowing ways:
a. by normal convection
The heat is produced by the upper and
lower heating elements.
b. by forced convection
The circular heating element and fan
constantly circulate heated air over the
food in the oven for a more rapid and
even cooking process. It is possible to
cook several dishes simultaneously.
c. by semi-forced convection
The heat produced by the upper and
lower heating elements is distributed
throughout the oven by the fan.
d. by radiation
The heat is irradiated by the infra red
grill element.
e. by radiation and ventilation
The irradiated heat from the infra red
grill element is distributed throughout
the oven by the fan.
f. by ventilation
The food is defrosted by using the fan
only function without heat.
4 - MULTI-FUNCTION OVEN

12
50
75
100
125
150
175
200
225
Fig. 4.1 Fig. 4.2
OVEN LIGHT
By setting the knob to this position, only the oven light comes on (15 W).
The light remains on whilst any of the cooking modes are selected.
TEMPERATURE KNOB (fig. 4.2)
To turn on the heating elements of the
oven, set the switch knob on the desired
program and select the required temper-
ature.
To set the temperature, line up the tem-
perature knob indicator with the required
temperature.
The elements will turn ON or OFF auto-
matically according to the energy need
which is determined by the thermostat.
TRADITIONAL CONVECTION COOKING
The upper and lower heating elements are switched on. The heat is diffused by natural
convection and the temperature must be set between 50° C and 225° C.
It is necessary to preheat the oven before adding the foods to be cooked.
Recommended for:
For foods which require the same cooking temperature both internally and externally, i.
e. roasts, spare ribs, meringue, etc.
FUNCTION SELECTOR KNOB (fig. 4.1)
Rotate the knob clockwise to set the
oven for one of the following functions:

13
GRILLING
The infra-red heating element is switched on. The heat is diffused by radiation.
Use with the oven door closed and the temperature knob between 50° and 225°C for a
maximum of 15 minutes.
Note: It is recommended that you do not grill for longer than 30 minutes at any one
time.
Attention: the oven door becomes very hot during operation. Keep children away.
For correct use see “USE OF THE GRILL”
Recommended for:
Intense grilling action for cooking with a broiler; browning, crisping, “au gratin”, toasting, etc.
HOT AIR COOKING
The circular element and the fan are on. The heat is diffused by forced convection and
the temperature must be set between 50° and 225 °C.
It is not necessary to preheat the oven.
Recommended for:
For foods that must be well done on the outside and tender or rare on the inside, i. e.
lasagna, lamb, roast beef, whole fish, etc.
DEFROSTING FROZEN FOODS
Only the oven fan is on. To be used with the temperature knob on “●” because the other
positions will have no effect. The defrosting is done by simple ventilation without heat.
Recommended for:
To rapidly defrost frozen foods; 1 kilogram requires about one hour.
The defrosting times vary according to the quantity and type of foods to be defrosted.

14
THAWING AND WARMING UP
The upper element and the circular element connected in series, are switched on; also the fan
is on. The heat is diffused by forced convection with the most heat being produced by the
upper element.
The temperature must be set between 50° and 140 °C.
Recommended for:
To keep foods hot after cooking. To slowly heat already cooked foods.
VENTILATED GRILL COOKING
The infra-red ray grill and the fan are on. The heat is mainly diffused by radiation and the fan
then distributes it throughout the oven. The temperature must be set between 50° and
175 °C for max 30 minutes. It is necessary to preheat the oven for about 5 minutes.
Use with the oven door closed.
Attention: the oven door becomes very hot during operation.
Keep children away.
For correct use see “GRILLING AND “AU GRATIN”.
Recommended for:
For grill cooking when a fast outside browning is necessary to keep the juices in, i. e. veal
steak, steak, hamburger, etc.
CONVECTION COOKING WITH VENTILATION
The upper and lower heating elements and the fan turn on.
The heat coming from the top and bottom is diffused by forced convection.
The temperature must be set between 50° and 225 °C.
Recommended for:
For foods of large volume and quantity which require the same internal and external
degree of cooking; for ie: rolled roasts, turkey, legs, cakes, etc.

15
GRILLING AND “AU GRATIN”
Set the switch to position .
Set the temperature knob to 175 °C and
after having preheated the oven, simply
place the food on the shelf.
Close the door and let the oven operate
until grilling is complete.
Adding a few dabs of butter before the end
of the cooking time gives the golden “au
gratin” effect.
Note: It is recommended that you do not
grill for longer than 30 minutes at any
one time.
ATTENTION: the oven door becomes
very hot during operation.
Keep children away.
USE OF THE GRILL
Preheat the oven for about 5 minutes.
Introduce the food to be cooked, posi-
tioning the rack as close to the grill as
possible.
The drip tray should be placed under the
rack to catch the cooking juices and fats.
Grill with the oven door closed.
Do not grill for longer than 30 minutes
at any one time.
CAUTION: the oven door becomes
very hot during operation. Keep
children well out of reach.
COOKING ADVICE
SIMULTANEOUS COOKING OF
DIFFERENT FOODS
The MULTI-FUNCTION oven set on
position and gives simultaneous
cooking of different foods.
Different foods such as fish, cake and
meat can be cooked together without
mixing the smells and flavours.
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 precautions 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 relation to the cooking times of
each one.
This type of cooking saves time and
energy.
OVEN COOKING
Before introducing the food, preheat the
oven to the desired temperature.
For a correct preheating operation, it is
advisable to remove the tray from the
oven and introduce it together with the
food, when the oven has reached the
desired temperature.
ROASTING
To obtain classical roasting, it is neces-
sary to remember:
– that it is advisable to maintain a tem-
perature between 180 and 200 °C.
– that the cooking time depends on the
quantity and the type of foods.

16
COOKING CHART
Food Temperature Cooking Time (approx)
°C Gas Mark
CAKES
Victoria Sandwich 180 4 20 – 25 mins
Small cakes/buns 180 4 15 – 20 mins
Rich Fruit Cake 150 2 2 hours
Scones 220 7 – 8 8 – 10 mins
Whisked Sponge 190 5 25 mins
BREAD & PASTRY
Bread Loaf (500g Flour wt) 225 7 – 8 20 – 25 mins
Bread Rolls 225 7 – 8 10 – 15 mins
Pizza Dough 225 8 15 – 20 mins
Shortcrust pastry 200 6 20 – 30 mins
Quiches/Flans 180 - 190 4 - 5 30 – 40mins
ROAST MEATS
Beef – medium joint 190 5 20 – 25 mins/lb + 20mins
Lamb 190 5 25 – 30mins/lb + 25mins
Pork 190 5 30mins/lb + 30mins
Chicken 190 5 20 – 25mins/lb + 30mins
Turkey 180 4 15 – 20mins/lb + 20mins
Stews/Casseroles 170 3 11/2- 2hours
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.
NOTE: Reduce the oven temperature by 10 – 20°C for fan assisted ovens.
For dishes that take over an hour to cook, reduce the cooking time by 10 minutes per
hour.

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A
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Fig. 5.2
Fig. 5.1
5 - ELECTRONIC PROGRAMMER
Description of the illuminated
symbols:
AUTO - flashing - Programmer in auto-
matic position but not pro-
grammed
AUTO -always lit - Programmer in auto-
matic position with program set.
Automatic cooking taking place
Timer in operation
and AUTO - flashing - Program
error.
(The time of day lies between the
calculated cooking start and end
time).
Note:
Select a function by the respective but-
ton and, in 5 seconds, set the required
time with the / buttons (“one-
hand” operation).
A power cut makes the clock go to zero
and cancels the set programs.
Description of the buttons:
Timer
Cooking time
End of cooking time
Manual position and cancellation of
the set cooking program
Advance the time for of all pro-
grams
Decrease the program time and
changing the frequency of the audi-
ble signal.
The electronic programmer performs the
following functions:
– 24 hours clock with illuminated display
– Timer (up to 23 hours and 59 minutes)
– Program for automatic oven cooking
– Program for semi-automatic oven
cooking.
If you use the oven for none auto-
matic or semi-automatic cooking,
ensure programmer is set to man-
ual position by pushing button.

18
ELECTRONIC CLOCK(fig. 5.2)
The programmer is equipped with an
electronic clock with an illuminated dis-
play which indicates hours and minutes.
Upon immediate connection of the oven
or after a blackout, three zeros will flash
on the programmer panel.
To set the hour it is necessary to push
the button and then the or
button until you have set the exact hour
(fig. 5.2).
Another way is to simultaneously push
the two buttons and at the same
time push the or button.
Note: The hour setting deletes any pro-
gram.
Fig. 5.3
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Fig. 5.4
ELECTRONIC TIMER
The timer program consists only of a
buzzer which may be set for a maximum
period of 23 hours and 59 minutes.
If the AUTO is flashing push the but-
ton.
To set the time, push the button and
the or until you obtain the
desired time in the panel (fig. 5.4).
Having finished the setting, the clock
hour will appear on the panel and the
symbol will be lit.
The countdown will start immediately and
may be seen at any moment on the panel
by simply pressing the button .
At the end of the time, the symbol
will be switched off and an intermittent
buzzer will go off; this can be stopped by
pressing any of the buttons.
SETTING THE FREQUENCY OF THE
AUDIBLE SIGNAL
3 possible sounds can be selected by
pressing the button.
NORMAL COOKING WITHOUT THE
USE OF THE PROGRAMMER
To manually use the oven, that is, without
the aid of the programmer, it is necessary
to cancel the flashing AUTO by pushing
the button (AUTO will be switched off
and the symbol will go on - Fig. 5.3).
Attention: If the AUTO is steadily lit (which
means a cooking program has already
been set), the program can be cancelled
and switched to manual by pushing the
button .
If the oven is switched on, you must
switch off manually.

19
A
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A
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Fig. 5.6
Fig. 5.5
AUTOMATIC OVEN COOKING
To cook food automatically in the oven,
it is necessary to:
1. Set the length of the cooking time
2. Set the end of the cooking time
3. Set the temperature and the oven
cooking program.
These operations are done in the follow-
ing way:
1.Set the length of time you need to
cook the food by pushing the but-
ton and the button to advance, or
to go back if you have passed the
desired time (fig. 5.5). The AUTO and
the symbol will be on.
2.Set the time you need the food to stop
cooking by pushing the button (the
cooking time already added to the
clock time will appear), and the
button (fig. 5.6); if you pass the
desired time you can go back by
pushing the button.
After this setting, the symbol will
go off. If after this setting, the AUTO
flashes on the panel and a buzzer
goes off, it means there was an error
in the programming, that is the the
cooking cycle has been superimposed
on the clock. In this case, change the
end of cooking time or the cooking
time itself by following the instructions
above.
3. Set the temperature and the cooking
program (see the relevant sections).
Once the oven is programmed it will
switch on automatically at the right time
to stop the cooking at the desired end
time.
During cooking, the symbol remains
on.
By pushing the button you can see
the time that remains until the end of
cooking.
The cooking program may be can-
celled at any time by pushing .
At the end of the cooking time the oven
will turn off automatically, the symbol
will turn off, AUTO will flash and the buz-
zer will sound, which can be turned off
by pushing any of the buttons.
Turn the switch and temperature knobs
to "OFF" and put the programmer onto
“manual” by pressing the button.
Attention: A powercut will make the
clock go to zero and will cancel the set
programs.
After a powercut, three zeros will flash
on the panel.

20
At the end of the cooking, the oven and
the symbol will turn off, the AUTO will
flash and a buzzer will go off which can
be stopped by pushing any of the but-
tons.
Turn the switch and temperature knobs
to "OFF" and put the programmer onto
“manual” by pressing the button.
A
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A
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Fig. 5.7
Fig. 5.8
SEMI - AUTOMATIC COOKING
This is used to switch the oven off auto-
matically after the desired cooking time
has elapsed.
There are two ways to set the semi-
automatic cooking function:
1.Set the length of time you need to
cook the food by pushing the but-
ton and the button to advance, or
to go backwards (Fig. 5.7).
This sets the desired “stop” time.
or
2.Set the time you need the food to stop
cooking by pushing the button and
the button to advance, or to go
backwards if you have passed the
desired time (Fig. 5.8).
AUTO and the symbol will be on.
Then set the temperature and the cook-
ing program (see the relevant sections).
The oven is switched on and it will
switch off automatically at the end of the
desired time.
During cooking, the symbol remains
on and by pressing the button you
can see the time that remains until the
end of the cooking.
The cooking program can be can-
celled at any moment by pushing the
button.