Defy GEMINI HOB 820 TC BV User manual

Page 1
DHD414
GEMINI HOB 820 TC BV
Cooking
Instruction manual
Part number: 070384

Page 2
Dear Customer,
Your new Defy hob was manufactured in a state of the art facility and has passed strict
quality control procedures. Please read this manual carefully before using your hob for the
first time and then store it within easy reach for future reference.
This manual will provide you with information on how to operate and care for your hob to gain
the maximum benefit from it.
We trust you will enjoy years of trouble free use.
EXPLANATION OF SYMBOLS
Important information
Warning—Hazardous situations
Warning—Electric shock
Caution; Warning for fire hazard
Caution; Warning for hot surfaces
Contents
1. Technical specifications 3
2. Important Safety Instructions 4
General safety 4
Electrical safety 4
Product safety 5
Intended use 6
Safety for children 6
Package information 7
Future transportation 7
3. Installation 8
Before installation 8
Installation and connection 8
Electrical connection 9
4. Preparation 10
Tips for energy saving 10
Initial use 10
First cleaning of the appliance 10
5. Controls 11
Switching on/off the cooktop 12
Selecting a power level for
the heater 14
Selecting an extension zone for
a radiant heater 15
Key lock 16
Residual heat 17
Stop & Go function 17
Operating the timer 20
Selecting the time 21
Errors/Alarms 24
6. Maintenance and care 26
Recommendations 26
7. Branches 27
8. Warranty 28

Page 3
The manufacturer strives for continuous improvement. For this reason, the text and
illustrations in this manual are subject to change without notice.
Figures in this manual are schematic and may not exactly match your product.
Values stated on the product labels or in the documentation accompanying it are
obtained in laboratory conditions in accordance with relevant standards. Depending
on operational and environmental conditions of the product, these values may vary.
Model DHD414 GEMINI 820 TC BEVEL
Volts 220V –240V 50/60Hz~
Amperes 38.5 A
Plate power rating (ø, mm/ W)
Middle cooking zone 270 mm 3 Stage Vitroceramic Plate 2700 W
Front cooking zone left 140 mm Vitroceramic Plate 1200 W
Front cooking zone right 175 mm Vitroceramic Plate 1800 W
Rear cooking zone right 140 mm Vitroceramic Plate 1200 W
Rear cooking zone left 175 mm Vitroceramic Plate 1800 W
Total power ( W) 8700 W
Type of switch Electronic sensors
Width
Depth
900 mm
510 mm
Cable type H07RN-F 3G6
Cable length 2 M
Technical Specifications
1

Page 4
2 Important safety instructions
This section contains safety
instructions that will help you
avoid risk of injury and damage.
All warranties will become void if
you do not follow these
instructions.
General safety
x This appliance is not intended
for use by persons (including
children) with reduced
physical, sensory or mental
capabilities, or lack of
experience and knowledge,
unless they have been given
supervision or instruction
concerning the use of the
appliance by a person
responsible for their safety.
x Young children should be
supervised to ensure that they
do not play with the appliance.
x Installation and repair
procedures must always be
performed by Authorized
Service Agents. The
manufacturer shall not be held
responsible for damages
arising from procedures
carried out by unauthorized
persons which may also void
the warranty. Before
installation, read the
instructions carefully.
x Do not operate the product if it
is defective or has any visible
damage.
x Ensure that the product
function knobs are switched off
after every use.
Electrical safety
x If the product has a failure, it
should not be operated unless
it is repaired by the Authorized
Service Agent. There is the risk
of electric shock!
x Only connect the product to a
grounded outlet/line with the
voltage and protection as
specified in the “Technical
specifications”. Have the
grounding installation made by
a qualified electrician while
using the product with or
without a transformer. Defy
shall not be liable for any
problems arising due to the
product not being earthed in
accordance with local
regulations.
x Never wash the product by
spreading or pouring water
onto it! There is the risk of
electric shock!
x The product must be
disconnected from the mains
supply during installation,
maintenance, cleaning and
repairing procedures.
x If the electrical supply is
restricted, means of all-pole
disconnection must be
accessible and incorporated in
the fixed wiring in accordance
with the regulations.

Page 5
x Never use the product when
your judgment or coordination
is impaired by the use of
alcohol and/or drugs.
x Be careful when using
alcoholic drinks in your dishes.
Alcohol evaporates at high
temperatures and may cause
fire since it can ignite when it
comes into contact with hot
surfaces.
x Do not place any flammable
materials close to the product
as the sides may become hot
during use.
x Keep all ventilation slots clear
of obstructions.
x Do not use steam cleaners to
clean the appliance as this
may cause an electric shock.
x Do not use or store flammable
products (alcohol, petrol,
benzene etc.) near the
appliance as these pose a fire
risk.
x Danger of fire: Do not store
items on the cooking surfaces.
x Unattended cooking on a hob
with fat or oil can be
dangerous and may result in
fire. NEVER try to extinguish a
fire with water, but switch off
the appliance and then cover
flame e.g. with a lid or a fire
blanket.
x WARNING: If the surface is
cracked, switch off the
appliance to avoid the
possibility of an electric shock.
x If the power connection cable
for the product is damaged, it
must be replaced by the
manufacturer, its service agent
or similarly qualified persons in
order to avoid a hazard.
x The appliance must be
installed so that it can be
completely disconnected from
the network. The separation
must be provided either by a
mains plug, or a switch built
into the fixed electrical
installation, according to
construction regulations.
x Any work on electrical
equipment and systems should
only be carried out by
authorized and qualified
persons.
x In case of any damage, switch
off the product and disconnect
it from the mains. To do this,
turn off the fuse at home.
x Make sure that fuse rating is
compatible with the product.
Product safety
x The appliance and its
accessible parts become hot
during use. Care should be
taken to avoid touching
heating elements. Children
less than 8 years of age shall
be kept away unless
continuously supervised.

Page 6
Intended use
x This product is designed for
domestic use. Commercial
use will void the guarantee.
x This appliance is for cooking
purposes only. It must not be
used for other purposes, for
example room heating.
x The manufacturer shall not be
liable for any damage caused
by improper use or handling
errors.
Safety for children
x Accessible parts may become
hot during use. Young children
should be kept away.
x The packaging materials will
be dangerous for children.
Keep the packaging materials
away from children. Please
dispose of all parts of the
packaging according to
environmental standards.
x Electrical and/or gas products
are dangerous to children.
Keep children away from the
product when it is operating
and do not allow them to play
with the product.
x Do not place any items above
the appliance that children
may reach for.
x Do not spray aerosols in the
vicinity of this appliance while
it is in operation.
x Do not modify this appliance
x Where this appliance is
installed in a marine craft or in
caravans, it shall not be used
as a space heater.
x Do not use the appliance for
heating closed tins and glass
jars. The pressure that would
build up in the tin/jar may
cause it to burst.
x Always keep children and
infirm persons away from the
appliance when it is in use.
x Use a deep pan, large enough
to cover the appropriate
cooking zones.
x Always dry food thoroughly
before placing it in hot oil or
fat. Frozen food in particular
will spit and splatter if added
too quickly.
x Never fill the pan more than
one third full of fat or oil.
x Never heat fat or fry with a lid
on the pan.
x Do not fry too much food at
once. This lowers the
temperature of the oil or fat
and results in fatty foods.
x Do not leave hot fat or oil
unattended. If overheating
occurs, these could catch fire.
x Do not modify this appliance
x This appliance is not intended
to be operated by means of
external timer or separate
remote control system

Page 7
DANGER Broken
glass!
Do not let any objects
fall onto the hob. Even
small objects may
damage the hob. Do not
use glass ceramic hobs
with cracks. Water may
enter into the cracks and
cause a short circuit. If
the surface is damaged
in any way (e. g. visible
cracks), switch off the
device immediately to
reduce the risk of an
electric shock.
Only use clean pots with
an even flat base to
prevent cracking on
glass due to hot spots.
Danger of fire: Do not
store items on the
cooking surface.
CAUTION: The cooking
process has to be
supervised. A short term
cooking process has to
be supervised
continuously.
WARNING: Unattended
cooking on a hob with fat
or oil can be dangerous
and may result in a fire.
Package information
x Packaging materials of the
hob are manufactured from
recyclable materials in
accordance with
Environmental Regulations.
x Do not dispose of the
packaging materials together
with domestic or other wastes.
Take them to collection points
designated by the local
authorities.
Future Transportation
x Keep the product's original
carton and transport the
product in it. Follow the
instructions on the carton. If
you do not have the original
carton, pack the product in
bubble wrap or thick
cardboard and tape it
securely.

Page 8
Installation
3
The hob must be installed by a qualified
electrician in accordance with national
regulations. Installation is the buyer’s
responsibility. The manufacturer accepts no
liability for this service. Any action that the
manufacturer has to take as a result of an
erroneous installation will not be covered by
the warranty.
DANGER Prior to installation,
visually check if the product has
any defects on it. If so, do not
have it installed. Damaged
products cause risks for your
safety.
DANGER The product must be
installed in accordance with all
local electrical regulations.
Preparation of location and
electrical and gas installation for
the appliance is the customer’s
responsibility. Risk of broken glass!
Do not put the ceramic hob down
on a corner or edge.
Before installation
The hob is designed for installation in a
commercial worktop. A safety distance must
be left between the appliance and the
kitchen walls and furniture. See figure
overleaf (values in mm).
x It can also be used in a free standing
position. Allow a minimum distance of 750
mm above the hob surface.
x (*) If a cooker hood is to be installed
above the cooker, refer to cooker hood
manufacturer' instructions regarding
installation height (min 650 mm)
x Remove packaging materials and
transport locks.
x Surfaces, synthetic laminates and
adhesives used must be heat resistant
(100 °C minimum).
x The worktop must be aligned and fixed
horizontally.
x Cut aperture for the hob in worktop as per
installation dimensions.
Cupboard design
Cooking appliances generate considerable
heat. The layout and materials of the
mounting cabinet should take account of
these characteristics.
Surfaces and surrounding edges
immediately adjacent to the hob should be
able to withstand temperatures of up to 100°
C without delaminating or discolouring.
Connection to the power supply must be
carried out by a qualified electrician, who will
ensure that the hob is correctly connected
and safely earthed. The rated current is
printed on the serial number label attached
to the base cover.
The hob must be connected to the mains
through a double pole isolating switch which
has a minimum clearance between the
contacts of 3 mm. in both poles. A means for
disconnection must be provided in the fixed
wiring.
This appliance must be earthed
and the manufacturer and the
seller do not accept
responsibility for any damage due
to incorrect installation or electrical
connection.
DANGER Risk of electric shock,
short circuit or fire by damage
of the mains lead!
The mains lead must not be
clamped, bent or trapped or come
into contact with hot parts of the
hob. If the mains lead is damaged,
it must be replaced by a qualified
electrician.
Installation and connection
The appliance must be installed in
accordance with local electrical regulations.

Page 9
The connection must comply with national
regulations. The mains supply data must
correspond to the data specified on the type
label of the appliance.
Risk of broken glass!
Do not put the ceramic hob down
on a corner or edge.
DANGER Risk of electric shock!
Before working on the electrical
installation, disconnect the
appliance from the mains supply.
DANGER Risk of electric shock,
short circuit or fire by
unprofessional installation!
The appliance may be connected
to the mains supply only by an
authorized qualified person and
the hob is only guaranteed after
correct installation.
Electrical connection
Connect the appliance to a grounded outlet/
line protected by a fuse of suitable capacity
as stated in the "Technical specifications"
table. Have the grounding installation made
by a qualified electrician. The manufacturer
and the seller do not accept responsibility
for any damage due to incorrect installation
or electrical connection.
Safety installation
x A removable horizontal board must be
fitted below the hob and 75mm away from
the worktop bottom face.
x Space between this board and the
appliance must be empty and no objects
may be stored or kept there.
x This board will effectively shield the user
from the base of the hob which gets hot
during use. The board needs to be
removable for service purposes as the
hob, once installed, can only be loosened
from below.
x If the appliance is installed with a side
adjacent to a vertical kitchen cabinet, the
distance between the edge of the
appliance and that of the cabinet side
must be a least 150mm. The distance
between the back wall and the rear edge
of the hob must be at least 55mm.
803
470
Earth leakage
This hob should not be connected through
an earth leakage system.
Refer to S.A.N.S. 10142
Connection to the power supply must be
carried out by a qualified electrician, who will
ensure that the hob is correctly connected
and safely earthed. The rated current is
printed on the serial number label attached
to the base cover.
The hob must be connected to the mains
through a double pole isolating switch which
has a minimum clearance between the
contacts of 3 mm in both poles.
A means for disconnection must be provided
in the fixed wiring.

Page 10
Preparation
4
x Only use clean pots with an even flat base
to prevent cracking on glass due to hot
spots.
The surface may get damaged
by some detergents or cleaning
materials. Do not use
aggressive detergents, cleaning
powder/cream or any sharp
objects.
Since the following are not factory faults,
they are the owner’s responsibility.
x Damage to exterior finish.
x Breakage of glass and other components.
x Damage through improper use or
installation of the appliance.
x Damage caused by moving the appliance.
Tips for energy saving
The following information will help you to use
your hob in an ecological way, and to save
energy:
x Defrost frozen dishes before cooking
them.
x Select the burner which is suitable for the
bottom size of the pot to be used. Always
select the correct pot size for your dishes.
Larger pots require more energy.
x Pots with a thick base will provide a better
heat conduction. You can obtain energy
savings up to 1/3.
x Pots must be compatible with the cooking
zones. Bottom of the pots must not be
smaller than the hotplate. Use pots with a
base diameter slightly larger than that of
the thermal area. This will ensure even
heat distribution and prevent spillage from
dripping onto and staining the hot zone.
x Keep the cooking zones and bottom of the
pots clean. Dirt will decrease the heat
conduction between the cooking zone and
bottom of the pot.
x Use only pots with a solid level base. An
uneven base will prolong cooking time and
waste energy.
x Always cover the pot with a lid. This will
conserve energy and minimize spillage.
x Save energy by switching the plate off 5 to
10 minutes before the end of a lengthy
cooking period. The hob will retain
sufficient residual heat to complete the
cooking process.
x A pot with rough edges could scratch the
appliance surface if it were dragged
across the surface of the appliance.
x Any spillage of sugar solution such as jam,
must be removed immediately. If allowed
to cool on the surface it could pit and
damage the surface.
x Do not cover the appliance surface with
aluminium foil and do not use poor quality
aluminium pots. These will leave unsightly
deposits which in time, could adhere to the
surface of the hob.
Initial use
First cleaning of the appliance
1. Remove all packaging materials.
2. Wipe the surfaces of the appliance with a
damp cloth or sponge and dry with a
cloth.

Page 11
Basic functions
The control allows different layout
configurations:
- Control for up to 5 Radiant heaters.
x KeyLock function.
x Stop & Go function.
x Indication of residual heat for each heater.
x Thermal control protection.
x Protection from accidental activation of
keys:
- One or more keys activated for more than
10 sec. -> Switching off the touch control. A
warning beep sounds every 10 sec., while
the key/s is/are activated.
- With all heaters at zero power during 10
sec. -> The Cooktop is switched off. If the
switching off is due to an accidental
activation of keys, the touch control actuates
as above.
x Acoustic warning to attract the user’s
attention.
Controls
Infrared keys
Displays and LED’s
5 7-segment displays [HEATERn_DISPLAY]
n=1..5 to show the actual set on each
heater,
show heater and cooktop special statuses
and show errors.
2 7-segment displays
TIMER_TENTHS_DISPLAY] and
[TIMER_UNITS_DISPLAY] to show the timer
remaining time.
10 LED-s [HEATERn_ZONE1_LED] and
[HEATERn_ZONE2_LED] n=1..5 for radiant
heater double and triple zone on/off
indication.
1 LED [CHILDLOCK_LED] to show if the
cooktop is locked/unlocked.
1 LED [STOP_GO_LED] to show if the Stop
& Go function
5 LED-s [HEATERn_TIMED_LED]n=1..5 to
show the association between the timer and
the cooking zones.
1 Bargraph LED [BARGRAPH_LED] to show
the selected power for the selected heater.
Sounds
3 beeps for switching Off the Cooktop
[OFF_SOUND].
2 beeps for activating Stop&Go function
[STOP&GO_SOUND].
3 short beeps for indicate a disabled key
[KEYBOARD_ERROR_SOUND].
scrolling sound for power selection on the
slider [SLIDER_SOUND].
5
1 key for switching On/Off the
Cooktop [ON_OFF_KEY].
1 key for locking/unlocking the
keyboard [KEYLOCK_KEY].
1 key for Stop & Go function
[STOP_GO_KEY].
1 key for enabling/disabling
extensions DOUBLE_ZONE_KEY].
2 key for timer timeset [-TIMER_KEY]
[+TIMER_KEY].
5 keys for heater selection
[HEATER_n_KEY] n=0..5
1 Infrared slider key [SLIDER] for
heater cookset selection.

Page 12
The Cooktop is switched ON by touching the
[ON_OFF_KEY] key for 1 sec. A beep
sounds and all the heater displays show a
‘0’.
Switching On/Off the Cooktop.
If the selection of a cook set for a heater is
not done in 10 seconds, the Cooktop will be
turned off automatically.
The Cooktop is switched OFF by touching
the [ON_OFF_KEY] key for 1 sec. An
[OFF_SOUND] sounds and all the heaters
are switched off. The purpose of these
[OFF_SOUND] is to distinguish the OFF
action over all others.
Switching ON the cooktop
Switching OFF the cooktop
When the Cooktop is OFF, after 5 sec
without any error/alarm to display and
without any message to indicate (residual
heat) , the control switches off the
[KEYLOCK_LED] in order to reduce the as
much as possible the power consumption.
As soon as we touch a key, the
[KEYLOCK_LED] goes ON and you can
continue to operate as normal unlocking the
keyboard if necessary and touching the
[ON_OFF_KEY] key to switch ON the
Cooktop.
The [ON_OFF_KEY] key will be locked to
switch On the Cooktop:
if the key lock is activated ,
or if there is any appliance error.

Page 13
To switch on a heater it is necessary to
actuate every cooking zone by means of two
operations:
Select a heater
Select the desired cookset
Selecting a power level for a heater
A heater is selected by touching the heater
[HEATER_n_KEY] key for 160 ms, a beep
sounds and the heater display shows the
power level.
The heaters that are not selected are shown
with a dot point.
Selecting a heater
Heater selection
The [HEATER_n_KEY] key will be locked
to select a heater:
x If the cooktop is off (all the heater
displays off), or
x if the key lock is activated , or
x if there is any heater or appliance error.
The heater selection will finish:
x 10 second after the last touch over the
[SLIDER] key
x if another heater is selected
x or if the [HEATER_n_KEY] key is
touched for 160 ms.
When the heater selection is finished after
10 seconds, a beep sounds and all the
heater displays show the power levels again.

Page 14
Once the heater is selected, the power level
can be selected by touching the [SLIDER].
Each position over the slider surface
corresponds to a cooking level. The power
level selection is done by sliding the finger or
by placing the finger on a specific position of
the slider surface.
The power set will be shown by displays
[HEATER_n_DISPLAY] and the
[BARGRAPH_LED].
The [SLIDER] keys will be locked:
x If no heater is selected, or
x if the key lock is activated , or
x if there is any heater or appliance error.
Selecting a power level for a heater
Depending on the configuration of the model,
the scroll over the slider makes a specific
sound [SLIDER_SOUND].

Page 15
To switch on a heater it is necessary to
actuate every cooking zone by means of two
operations:
x Select a heater
x Select the for enabling/disabling
extensions the [DOUBLE_ZONE_KEY]
key.
Selecting an extension zone for a radiant
heater
Selecting a an extension zone
Once the heater is selected, the extension
zones can be enable/disable by touching the
[DOUBLE_ZONE_KEY] key. Double zone
Triple zone

Page 16
The key-lock is always activated at the start
up of the control.
The locking function can be activated every
time if the Stop&Go function is OFF.
Touching the [KEYLOCK_KEY] key for 1
second, the key lock function is activated
or deactivated.
If the cooktop is ON, the key lock
function locks all the keys except the
general
[ON_OFF_KEY] key and the
[KEYLOCK_KEY].
When the cooktop is OFF, the key lock
function locks all the keys, including the
general [ON_OFF_KEY] key.
Key lock
If the keyboard is locked the
[CHILDLOCK_LED] is ON. With the
exception of:
when the Cooktop is OFF, after 5 sec
without any error/alarm to display and
without any message to indicate (residual
heat) , the control switches off the
[KEYLOCK_LED] in order to reduce the as
much as possible the power consumption.
As soon as we touch a key, the
[KEYLOCK_LED] goes on and we can
continue to operate as normal unlocking the
keyboard if necessary and touching the
[ON_OFF_KEY] key to switch ON
the Cooktop.
Key Lock activated when cooktop is ON
If the cooktop is OFF and locked, the Key
Lock Led is ON when we touch any key

Page 17
Once cooking has finished, the user
interface indicates if there is remaining heat
in the corresponding heater.
Remaining heat will be indicated only when
the heater temperature goes beyond 65ºC
(149ºF). To ensure that a heater reaches a
temperature greater than this, it is necessary
that the heater is working for more than 7
seconds in a power level greater than zero.
As radiant heaters temperatures are not read
directly, it is necessary to estimate the time
that the heater will be hot after cooking.
During this time, shown in table 1, letter ‘H’
will be show alternatively with ‘0’, indicating
hot remaining.
Residual Heat
Radiant Heaters Residual Heat
Automatic actions
Protection from accidental activation of
keys
If any key/s is continually pressed for more
than 10 seconds, the cooktop is switched off
automatically. A warning beep sounds every
10 sec., while the key/s is/are activated.
Heater auto switch off in a specific time
After the maximum time of operation at the
same power level, the heater is switched off
automatically.
The heater auto switch off time is
automatically reset when the power level is
changed.
Thermal protection of the control.
When the control user interface detects an
ambient temperature above 96°C(+-5%), it
switches off the cooktop. Any heater
switched off by the thermal protection can
only be reactivated when the temperature
falls below 89°C(+-5%).
When the heater power control detects an
unusually high operating temperature for its
devices, it switches off all the heaters until
the temperature reaches normal operating
values, thereafter continuing with their
previous power level values.
The Stop and Go function allows temporary
pausing of the cooking process, allowing the
user to answer the door or the telephone
without having to be concerned about
contents of pots boiling over.
This function is also useful to clean the user
interface surface without changing the
cooking set up.
If the [STOP_GO_KEY] is pressed for more
than 120 milliseconds:
x The [STOP_GO_LED] flashes, a
[STOP&GO_SOUND] sounds and the
cooktop is stopped,
x the heaters actual power setting is stored
and all the active heaters power is set to
power level 0,
x the heaters auto switch off time is
stopped,
x all timers running count downs are
stopped,
x all keys are locked except
[STOP_GO_KEY] and [ON_OFF_KEY],
x timer displays nothing, and all the heaters
displays are switched on and display “0”.
Stop & Go function

Page 18
Stop & Go

Page 19
The stop function will finish:
x if the [STOP_GO_KEY] is touched for
more than 120 milliseconds a beep
sounds and the heaters actual power
setting is restored, or
x if the cooktop is stopped for more than
10 minutes the cooktop is switched off
automatically.

Page 20
Operating the timer
The timer value can be selected between 1
and 99 minutes. It is possible to set the time
for any heater at any power level, including
power level 0.
The user can select only one heater at a
time on which the timer function is to
operate. The timer last minute will be
displayed in seconds.
The [+TIMER] [-TIMER] keys will be locked:
o If the Cooktop is off, or o if the key lock is
activated (KEYLOCK LED on).
Selecting a timer for a heater
Once a heater is selected, a switch-off time
can be selected by touching the [+TIMER] or
[-TIMER]. When the timer is off, it is
activated by pressing the timer keys
[+TIMER] or [-TIMER]. A beep sounds, the
timer display shows a “00” flashing and the
timed heater LED flashes. Activating the timer
The [+TIMER] or [-TIMER] keys will be
locked:
x If no heater is selected, or
x if the key lock is activated , or
x if there is an error.