Kuppersbusch GCM 642.1 Quick setup guide

BEDIENUNGSANWEISUNG
mit Montageanweisungen
Instructions for use and installation instructions
Instructions d’utilisation et avis de montage
Gebruiksaanwijzing en montagehandleiding
Istruzioni di uso e di montaggio
Instrucciones de uso y de montaje
GCM 642.1

GCM 642.1 15
For your information...
You should carefully read the information in this manual before you use your
appliance. Here you will find important notes concerning safety and how to
use, look after and service your appliance so that it enjoys a long service life.
Should a fault arise, please first consult chapter “What to do if trouble
occurs”. You can often remedy minor faults yourself and thus save
unnecessary service costs.
Please keep this manual in a safe place and pass it on to new owners for their
information and safety.
The following symbols are used in this operating manual:
=The warning triangle draws your attention to risks to your health or
damage that might be caused to your appliance.
FHere you will find useful hints and information.
Disposing of the packaging and
the old appliance
Dispose of the transport packaging in such a way that it does not impact on
the environment.
If the appliance is purchased in Germany, the dealer who sold you the
appliance will dispose of the transport packaging for you. Recycling the
packaging saves raw materials and reduces the amount of waste. Disposed
appliances still contain useful materials. Dispose of your old appliance at a
collection point for recycling useful materials. Before disposing of your old
appliance ensure that it cannot be used any longer. This will prevent misuse.
Contents
Your appliance at a glance . . . . . . . . . . . . . . . . . . . . . . . 16
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installation, connection and function
Operation
Before using the appliance for the first time . . . . . . . . . . . 18
Cleaning the appliance and putting it into operation
Setting the digital clock
Using the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Switching the cooking zones on and off
The simmering zones
Example of an application
Which are the best pots and pans?
Notes on energy-saving cooking.
Cleaning and care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
What to do if trouble occurs . . . . . . . . . . . . . . . . . . . . . . 20
Assembly and installation . . . . . . . . . . . . . . . . . . . . . . . . 21
Safety instructions
Conditions for building in the appliance
Gas connection
Electrical connection
Installation
Converting to a different type of gas. . . . . . . . . . . . . . . . . 24
Changing the jet injectors
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Power, consumption and installation dimensions
Gas connection data
Diameter of injectors
Table of permitted gas types and gas pressures

16 GCM 642.1
Your appliance at a glance
Hob
1Airvents
2 Simmering zones
3 Cooking zones
4 Residual heat display
Control panel
5 Symbol for cooking zones
6 Cooking zone indicators
7 Digital clock
8 Error displays for cooking zone
9 Controllers for cooking zones
10 Switch for dual-circuit zone
11 Symbol for dual-circuit zone

GCM 642.1 17
Safety instructions
Installation, connection and function
These operating and installation instructions must be discussed with the users
and then handed over to them.
■ The appliance should only be used with natural gas or liquefied petroleum
gas (butane/propane or a mixture of the two).
■ The supply pressure must be
– for natural gas H, E, LL 20 mbar
– for liquefied petroleum gas50 mbar.
Do not take the appliance into operation if the gas supply pressure is out
of range.
– natural gas min. 17.0 mbar, 25.0 mbar max.
– liquefied petroleum gas min. 42.5 mbar, 57.5 mbar max.
The indicated gas supply pressure refers to Germany. Gas supply pressure
in other European countries. see section “Technical data”.
■ Only the nationally approved pressure governors may be used.
■ The appliance has been designed for a mains supply of 230 V/50 Hz. It
consumes approx. 35 W.
■ The technical connection data can be found on the rating label of the
appliance.
■ Before connecting the appliance it must be checked whether the local
supply conditions (type of gas and gas pressure) and the settings of the
appliance correspond.
■ All appliance settings are listed in “Technical data”. They are indicated on
the appliance by an indicating label (or on the identification plate).
■ If a setting is changed, this must be clearly indicated.
■ This appliance should not be connected to a pipe for extracting combustion
products. It must be fitted and connected in accordance with the applicable
conditions of installation.
■ The use of a gas cooker causes heat and humidity to form in the room
where the cooker is installed. For this reason it should always be ensured
that the kitchen is well ventilated.
■ All work, such as connection to the gas mains or adjusting and converting
the appliance, should only be carried out by a qualified fitter. The statutory
regulations and the connection conditions of the local gas board must be
observed in every detail.
■ All maintenance and repair work should only be carried out by a Customer
Service technician trained by the manufacturer. Always ensure to disconnect
the appliance from the energy supply when repairs are being carried out on
facilities for directing the flow of gas. Work carried out incorrectly places
your safety at risk.
■ If the appliance is run on liquefied petroleum gas (butane or propane gas),
all connections between the bottle and the appliance must be absolutely
tight and leak-proof.
■ Do not wedge in freely laid supply hoses or place them on the hot hob.
■ If cooker hoods are mounted above the hob, please observe a minimum
distance of 650 mm. Please take note of the instructions of the respective
manufacturer of the cooker hood.
■ We recommend that the appliance is serviced at regular intervals by a
qualified fitter (maintenance agreement).
Operation
■ Do not switch the appliance on until the installing technician has explained
the appliance to you.
■ In addition you should carefully read the information in these operating and
installation instructions. Here you will find important notes concerning safety
and how to use the appliance. You should remember that any damage due
to improper operation does not fall within the scope of the guarantee.
■ The appliance is to be used only for the preparation of food in the home.
■ Never use the appliance to heat a room.
■ In the event of any trouble during operation, immediately turn off the supply
of gas.
■ Please keep this manual in a safe place.
■ Never put the cooking zones into operation unless there is a saucepan of
food on top of them.
■ Never use the hob as a work or storage surface!
■ The surfaces of the hob and of the entire appliance become very hot when
in operation.
Always keep children away!
■ The air vents of the hob must never be covered.
■ Overheated fats and oils may spontaneously ignite. Food involving the use
of fats and oils, e.g. chips, may only be cooked under supervision. Never
extinguish ignited fats and oils with water! Put the lid on, turn off the
cooking zone and remove the pan.
■ The glass ceramic hob is very tough and can easily stand light to medium
blows and loads distributed over large areas. You should, however, avoid
concentrated loads, such as containers for spices and herbs or bottles
falling onto the surface.
■ If cracks, fractures or any other defects appear in your glass ceramic hob,
immediately switch off the appliance.
■ Do not place aluminium foil or plastic on the cooking zones.
■ Do not use aluminium containers as kitchenware.
■ When the is appliance is cold you should heat it approx. for 2 minutes at
cooking level 12 before switching back to a lower cooking level.
■ Make sure connection cables for electrical devices are not jammed on the
hot cooking zones.
■ Always keep pressure cookers under observation until the right pressure has
been reached. First set the burner of the cooking zone to full flame and
then turn down the flame in good time (as indicated by the manufacturer
of the saucepan).

18 GCM 642.1
Before using the appliance for
the first time
=You may only switch the appliance on after it has been correctly installed
and checked by an authorised fitter and he has instructed you on how to
use the appliance.
Cleaning the appliance and putting it into operation
Before preparing food for the first time:
– Please clean the hob of the appliance with a damp cloth and then polish it
until it is dry. In this way you will prevent any dirt from burning into the
surface.
– The built-in hob should be operated for about 10 minutes at setting 12.
During these 10 minutes some remains of the ceramic bonder may escape
in the form of white steam.
=Attention: When you use the appliance for the first time in this way,
please open a window or ventilate the kitchen in a different way so that
the fumes which are formed can escape.
Please note the safety instructions in section “Cleaning and care” (on pag. 20).
Setting the digital clock
You can use the digital clock to remind yourself of the end of the planned
cooking time. The cooking zones are not switched off automatically.
Setting the time
– Briefly press the button with the clock
symbol and then set the time with the
buttons +or –.
Setting a cooking time
– If you have just set the time: Wait for
about 10 seconds.
– Then enter the desired cooking time
with +.
Each time the button is pressed, the
cooking time is increased by
10 seconds (max. 99 minutes can be
set). A bell symbol appears in the
display.
The elapsing cooking time is shown in the display and can be changed at any
time with +or –. The pre-set cooking time is deleted by pressing +and –
simultaneously. Release the button +first as otherwise a new cooking time is
set.
Displaying the time while a cooking time is running:
– Briefly press the button with the clock
symbol.
– The time is displayed; after a few
seconds the cooking time is
automatically shown again.
End of the cooking time
The end of the cooking time is indicated by an acoustic signal. The alarm is
switched off with the +button, otherwise it stops automatically after
7minutes.
While the signal is sounding, you can change the tone:
– Press the button –once or twice to set one of the other three tones.
Using the appliance
=Please note the safety instructions on page 17!
■ The glass ceramic hob is very tough and can easily stand light to medium
blows and loads distributed over large areas. You should, however, avoid
concentrated loads, such as containers for spices and herbs or bottles
falling onto the surface.
■ If the glass ceramic hob shows any signs of cracks, fissures or breakage,
switch off the appliance immediately and call Customer Service. During
subsequent use liquids which have boiled over, for example, can damage
the appliance.
Switching the cooking zones on and off
The appliance has two cooking zones. Each cooking zone has its own control
knob. Which control knob belongs to which cooking zone can be seen from
the symbols on the control panel.
Twelve cooking levels are marked on each cooking zone control knob. As far
as possible, start cooking at the highest setting and continue at a smaller
setting.
– You should generally start cooking with
the control knob at a high setting and
then switch back to a lower setting to
continue.
The cooking zone indicator will light up.
After about 5 seconds the flame will
ignite automatically and the cooking
zone will also be supervised
automatically.
Combustion is barely visible. After some time (at setting 12 after about
2 minutes), the burner firing blocks will glow red.
The burner does not burn continuously during operation, but is permanently
switched on and off by the cooking zone's gas regulation device depending on
the setting you have selected.
The left-hand cooking zone has a dual-
circuit burner. The outer annular
enlargement of the burner diameter is
switched on and off with the control knob
located on the left beside the cooking zone
control.
= small burner diameter
= large burner diameter
Important! At setting 12 the appliance is not switched off by the gas
regulation device and the cooking zone is operating at full flame! The glass
ceramic protection also functions when the control is set this way. In this
control setting cut-offs can occur if the heat dissipation is not sufficient
because pots are not used or are unsuitable.
As the glass ceramic hob stores heat well, the cooking zone can be switched
5 – 10 minutes before the end of the cooking process, depending on what and
how much food is in the pot.
– To switch off the cooking zone, turn the control knob to the left, back to
setting “l”.

GCM 642.1 19
The simmering zones
The simmering zones on the hob can be used for simmering food until it is
done and for keeping food warm.
As from setting 8, this part of the glass ceramic hob heats up so intensely
that additional simmering is possible.
Example of an application
Menu:
Beef soup
Roast pork
Vegetables
Potatoes
Cook the beef soup and the roast pork on the two front cooking zones until
the food is 3/4 done. Then slide both pans to the simmering zones and cook
the vegetables and the potatoes on the front cooking zones.
If the cooking zones are loaded in this way, all the food will be cooked until
it is done.
Which are the best pots and pans?
You can save time and power by choosing the best pans.
■ Use pots and pans with flat,
smooth bottoms.
■ Saucepan and pan bases must
contract inwards slightly in the
cold condition as they expand
when hot and then rest on the cooking zone. This is the best way for the
heat to be transferred.
■ The best pots are made of steel enamel, copper and stainless steel with a
sandwich bottom. Other pots can also be used, however the heat
transmission between glass ceramic and pot is not that good. This extends
the cooking time and more energy is used.
When you purchase a set of pans, check for the label “Suitable for glass
ceramic”.
■ The optimum base thickness is 2 – 3 mm for steel enamel and 4 – 6 mm
for stainless steel with a sandwich bottom.
■ Choose a pot or pan whose
diameter fits the hotplate. If the
cooking surface is larger than the
bottom of the pot the heat is not
used properly and the handles
get hot.
■ Do not use saucepans made of cast iron or saucepans with electrographic
bases.
■ The saucepan bases must be clean and dry to avoid scratches on the
surface.
■ Never use aluminium dishes or plastic vessels!
Notes on energy-saving cooking.
■ Only cook with very little liquid. The heating of the pot content takes less
time and you loose less vitamins and minerals by not pouring away the
liquid.
■ Always put a well closing lid on
the pot. The pot content only
boils over if the selected cooking
level is too high. If the pot
content boils too much switch to
a lower cooking level. You need
less energy and avoid humidity when cooking.
■ Only cook meals as long as necessary. Keeping food warm consumes more
energy than warming cooled down food. In addition you save vitamins. You
loose less vitamins because they are not heat resistant.
■ When preparing meals with a long cooking time you can save time and
energy by using a pressure cooker.
■ As the glass ceramic hob stores heat well, the cooking zone can be
switched off 5 to 10 minutes before the end of the cooking process. The
simmering zones however cool down faster.

20 GCM 642.1
Cleaning and care
Glass ceramic hob
■ Do not use any abrasive agents and
sponges or sharp cleaning agents!
Chemical oven cleaners, bleaching
agents, rust and spot removers can have
a corrosive effect and damage the surface
of your hob.
■ Before cleaning always wait until the hob
has cooled down sufficiently. Exception:
sugar and melted plastic (see below).
■ Do not use any cleaning cloths or
sponges that are used for other purposes.
This can discolour the surface, but the
discoloration will not become visible the
next time you use the appliance.
■ Usually it is sufficient to clean the
appliance with a damp cloth and a little
washing-up liquid each time you use it.
Wipe dry afterwards.
Always completely remove any remains of
cleaning agent with a damp cloth; they
could have an corrosive effect.
■ Avoid dirt burning and becoming
encrusted.
■ Encrusted dirt and food which has boiled
over should be removed with a glass
scraper. Remove sugar and melted plastic
immediately while the cooking surface is
still hot.
■ Heavy dirt and spots which glitter like
mother of pearl can be removed with a
cleaning agent for stainless steel.
■ To protect and care for the glass ceramic hob we recommend special
products to care for glass ceramic hobs such as Ceraclen or Vitroclen. They
protect the hob by covering it with a thin protective film which wards off
water and dirt.
Stainless steel
■ Panelling and panels made of “rust-proof” stainless steel are cleaned with
warm water (optionally with the addition of some hand detergent. After
cleaning rub dry.
■ The stainless steel surface must not be scratched. Therefore do not use any
scouring agents or sponges (especially steel wool) for cleaning.
■ Cleaning agents containing acid or chlorine must not be used.
■ Allow surfaces to cool before cleaning.
■ The surface must not come into contact with any rusty parts. Avoid damage
to the surface with pots, tools etc. which are not made of rust-proof
material.
What to do if trouble occurs
=Repairs should only be carried out by a qualified gas fitter!
First check whether there has been any operating error. You can deal with
some problems that occur yourself.
Repairs during the guarantee period are not free of charge, when they are
caused by operating errors or non-observance of the following instructions:
Always indicate the data provided on the rating label when calling in Customer
Service or ordering spare parts.
Fault Cause Remedy
Not possible to
switch off the
appliance.
Electronic component
defective.
Disconnect the fuse,
close the gas connection
tap,
call customer service.
Cooking zone does
not heat up.
Household fuse
defective.
Check and replace fuse, if
necessary.
No gas supply. Open gas connection
supply.
The fault display and
the indicator for one
cooking zone light
up.
Air in the gas supply line.
(when putting the
appliance into operation
for the first time)
Switch the appliance off
and then switch it on
again (RESET).
If no change occurs, call
Customer Service.
The other cooking zone
can continue to be used in
the meantime.
Internal fault.
Smell of gas in the
room.
Leakage in gas supply
line or gas connection
tap or defective cooking
zone burner.
Close the main gas tap,
ventilate the room,
do not activate any electric
switches, do not light any
open flames, immediately
inform the gas fitter or the
customer service.

GCM 642.1 21
Assembly and
installation
Safety instructions
■ Attention! The gas category permitted for the connection of the appliances
can differ from region to region. In case of doubt enquire at your local gas
board to find out which categories of gas come into question.
Check whether the data on the rating label are in accordance with the local
connection conditions (type of gas and gas pressure) and with the appliance
setting. If there are any discrepancies the appliance must be converted
accordingly!
■ If the appliance is connected up to the gas mains, particular attention must
be paid to the relevant regulations and guidelines laid down by the
associations in the country where the appliance is being operated. These
are for example:
DVGW-TRGI 1986/96: Technical regulations for gas installation (Germany)
TRF 1996: Technical regulations for liquefied petroleum gas (Germany)
ÖVGW-TRGI and TRG 2 Part 1: Technical regulations (Austria)
SVGW-Guidelines for gas G1: Gas installation (Switzerland)
EKAS-Guideline N. 1941/2: Liquefied petroleum gas, Part 2 (Switzerland)
Regulations of the local gas utilities and authorities (e.g. for fire protection)
are also to be observed.
■ Statutory regulations and the connection specifications issued by the local
power supply company must be strictly observed.
■ The appliance should only be connected and put into operation by a
qualified gas fitter who should also be the only person to carry out any work
such as maintenance and repair or adjustment and conversion. The legally
recognised regulations and the conditions for connection laid down by the
local gas board should be observed in all details.
■ Work which has been improperly carried out endangers the safety of the
user!
■ This appliance should not be connected to a pipe for extracting combustion
products. It must be installed and connected in accordance with the
applicable conditions of installation.
■ Particular attention should be paid to sufficient ventilation measures.
■ If the connection plug should not be accessible, protect the appliance by
line-protecting switches, fuses or contactors whose contact opening has a
width of at least 3 mm.
■ When the appliance is being connected up and when repair work is being
carried out on it, the appliance should be disconnected from the electricity
supply using one of these devices. Always ensure to disconnect the
appliance from the energy supply when repairs are being carried out on
facilities for directing the flow of gas.
■ When the appliance has been built in it should not be possible to come into
contact with parts that are under electric current.
■ The earth wire must be so long that if the mains lead cleat fails, the live
wires of the connecting cable are subjected to tension before the earth wire.
■ The openings to allow the extraction of fumes must not be covered over.
■ When converting from natural gas to liquefied petroleum gas, it is always
necessary to change the injectors of the cooker zone jets. This also applies
if the reverse is the case. This conversion should only be carried out by a
qualified gas fitter.
■ No changes may be made to the appliance unless with the express approval
of the manufacturer.
Conditions for building in the appliance
The installation space must have a volume of at least 20 m3and it must be
possible to ventilate the area by a window or a door opening out into the fresh
air.
The hob is built into a worktop opening, which must be cut in accordance with
the dimensions specified below. If the depth of the worktop is 600 mm the
worktop opening will produce an edge of 55 mm at the front and the back.
If the worktop is deeper, the edge at the back will be wider.
The installation height of the appliance is 85 mm. The intermediate walls must
be shortened accordingly.
Additional space for the gas connection is required below the hob.
The wall connection strip should be made of heat-resistant material and must
not be provided with sockets in the area around the hob. We recommend
using a support strip made of plastic and a covering strip made of aluminium.
The lateral part on the worktop must not be longer than 30 mm.
As regards the protection of surrounding surfaces against overheating, the
appliance is an appliance of type Y in accordance with VDE 0700/6; IEC 335-
2-6. If one-sided furniture (e.g. mounted cupboards) is mounted, please
observe a minimum distance of 60 mm to the hob frame counting from the
worktop. The other sides may only be in contact with furniture with the same
height as the appliance.
The wall above the wall connection strip in the area around the appliance must
be made of non-inflammable material. Wood, plastic, PVC foil etc. do not meet
this requirement.
Under normal operating conditions heat with a temperature of 65 °C above
room temperature can radiate onto the surrounding furniture. The furniture
parts must at least conform to this requirement.
The plastic finish, or the veneer of built-in kitchen furniture must be have been
produced using a heat-resistant adhesive (100 °C).
If cooker hoods are mounted above the hob, please observe a minimum
distance of 650 mm. Please take note of the instructions of the respective
manufacturer of the cooker hood.
Gas connection
When the appliance is fitted and installed, particular attention must be paid to
the relevant regulations and guidelines.
DVGW-TRGI 1986/96: Technical regulations for gas installation (Germany)
TRF 1996: Technical regulations for liquefied petroleum gas (Germany)
ÖVGW-TRGI and TRG 2 Part 1: Technical regulations (Austria)
SVGW-Guidelines for gas G1: Gas installation (Switzerland)
EKAS-Guideline N. 1941/2: Liquefied petroleum gas, Part 2 (Switzerland)
First check whether you have the right type of gas and the right gas supply
pressure. You will find the details of the gas supply pressure under the heading
“Technical data”.
The stick-on label (which is located on the cover plate of the control element)
indicates what type of gas the built-in hob has been set to run on.
It is possible to convert to another type of gas; this is explained in these
operating and installation instructions under “Converting to a different type of
gas”.

22 GCM 642.1
The pipe for the gas connection is at the centre of the underside of the
appliance.
The gas connection pipe with R 1/2" outside thread is designed in such way
that it can either make a permanent connection with a gas connection tap in
conformity with DIN 3354 or a connection using a DVGW-approved gas safety
hose with a socket (DIN 3383, page 1).
The transition piece from R 1/2" to pipe diameter 8 x 1 mm which is provided
with the appliance can be used for appliances operating on liquefied petroleum
gas.
In Switzerland the use of SVGW-approved gas safety hose (with socket) is
obligatory.
It must be ensured that the connection parts are laid in such a way that they
cannot heat up and become damaged while the appliance is in operation and
that they cannot come into contact with the movable parts of the kitchen
elements.
Electrical connection
An earthed shockproof socket is required for electrical connection. Electrical
connection must be carried out in conformity with the VDE guidelines. The
appliance has been designed for a mains supply of 230 V/50 Hz It consumes
approx. 35 W.
The connection cables must be laid in such a way that they do not heat up
and become damaged when the appliance is in operation.
Installation
– Make the opening in the worktop and the opening for the control panel with
the specified dimensions below.
Installation dimensions
■ If the installation space is limited at the bottom by a horizontal partition
plate, a ventilation system must be created to the other furniture units
through an at least 180 cm2(e.g. 10 x 18 cm) large opening in the
partition plate.
■ An edge of at least 5 mm must remain between the inside edge of the
cupboard front and the opening in the worktop.
Prepare the worktop opening for the installation of the hob
– Fasten sheet panelling bon all four sides of the worktop opening with the
enclosed nails. The angled section of the panelling then rests on the
worktop.
The notch on the angled side of the side sheets must coincide with the centre
of the worktop opening.
distance from the
rear wall ~170 mm
*) depends of the length of the security tube
minimum lenght 500 mm
220 min.

GCM 642.1 23
Preparing the opening for the control panel
– Fasten the two holding angles hon the left
and right in the control panel opening with
the screws provided. The space between the
catch points rmust be 502 mm.
Installing the seal between hob and worktop
=Do not seal additionally the hob frame with silicone or similar. Otherwise
the worktop can be damaged when taking off the hob.
Before the appliance is connected to electricity and gas, the self-adhesive seal
supplied separately must be installed between the hob and the worktop. This
seal is glued onto the underside of the hob frame.
After the assembly the sealing must be fitted as shown in the illustration.
1Glass ceramic
2Seal
3Hob
– Press the self-adhesive sponge rubber seal around the hob frame starting
from the centre at the back.
Making the gas connection
Make the gas connection according to the information on page 21.
Installing the hob
– Insert the hob into the worktop opening. The pins on the side panelling
sheets must engage the spring catches in the hob.
– Press the hob edge by hand lightly.
Installing the control panel
– Hold the control panel in front of the prepared opening and insert the two
connection lines into the connection bushes of the control panel.
Do not use force. The shape and size of the plugs prevent them from
being inserted the wrong way round.
– Guide the electric cable of the control panel through the opening in the
bottom cupboard to the rear.
– Carefully press the control panel into the opening. The pins of the control
panel must engage the spring catches of the holding angles.
=Attention! The all-round gap between the front of the control panel and
the cupboard front serves to ventilate the appliance and must not be
sealed.
– Insert the plug into an earthed shock-proof socket.
If the indicator lights on the control panel glow weakly when the plug is
inserted, insert the plug in the reversed way.
Before putting the appliance into operation it must be checked by the fitter for
perfect functioning and any gas leaks. The appliance is then ready for
operation.
The fitter must explain to the operator how to work the appliance on the basis
of the instructions for use. These instructions must then be handed over to
the user.

24 GCM 642.1
Converting to a different type of
gas
■ If the appliance is converted to run on a different type of gas, this should
only be carried out by a qualified gas fitter.
■ If the appliance is converted to run on a different type of gas, the jet
injectors will always have to be replaced.
■ All appliances marked with G20 must be operated within Wobbe index
range 11.3 – 15.2 kWh/m3without changing the setting.
If a setting is changed, this must be clearly indicated.
Changing the jet injectors
– Disconnect the gas or electricity supply before converting.
– Pull the control panel forwards out of the holder and disconnect the two
plug connections to the hob.
– Carefully lift the hob forwards out of the worktop: e.g. push a screwdriver
or similar under the hob edge. Place the entire hob with the glass ceramic
cooking surface facing down on a suitable base.
– Remove perforated protective panelling in the area of the gas connection.
– Undo the clips 1on the injector pipes 5.
– Undo the fastening screws 2and push the valve block 3to the rear The
injector holders 4are pulled out of the injector pipes.
– Remove the injectors using a 9 mm-wrench and insert the new injectors.
When unscrewing the injectors, countercheck by gripping the injector
holder 4in a suitable manner.
Ensure that injectors with the correct diameter are used! Suitable
injectors are indicated on page 25 in the table “Diameter of injectors”.
– After changing the injectors, insert the injector holders right back into the
injector pipes and secure with the clips.
– Screw the fastening screws of the gas connection back in again and screw
on the perforated protective panelling.
– First insert the hob into the worktop opening.
– Connect the hob with the control panel and insert the panel back into the
opening.
Technical data
Power, consumption and installation dimensions
The ratings relate to the calorific value and are calculated with the test gases
natural gas G20 (methane) and LPG G31 (propane).
The appliance must be inspected in accordance with the national regulations
as well as the EU Gas Equipment Directive (90/396/EEC) and EN 30.
Gas connection data
If required, sets of injectors can be ordered for natural gas LL.
G20; 2H, 2E, 20 mbar and G20/G25, 20/25 mbar settings:
All appliances marked with the setting G20; 2H, 2E, 20 mbar must be
operated within Wobbe index range (15 °C, 1013 mbar) 11.3 – 15.2 kWh/m3
without changing the setting.
All appliances marked with the pressure couple (G20/25, 20/25 mbar) must
be operated within Wobbe index range (15 °C, 1013 mbar)
10.8 – 15.2 kWh m3without changing the setting.
=Attention! The settings for this appliance are indicated on an indicating
label (or on the identification plate).
If a setting is changed, this must be clearly indicated.
1Clip
2Fastening screw
3Valve block
4Injector holder
5Injector pipe
Burner power (HS)
Front left
Front right
2.5kW(2x1.25kW)
2.5 kW
Electrical connection
Gas (liquefied petroleum gas)
Electrical connection
364 g/h
35 W
Dimensions / mm
Hob W x D x H
Control panel with front W x H
585 x 514 x 85
585 x 100
Opening dimension / mm
Hob W x D
Control panel W x H
560 x 490
525 x 90
Gas type Rated load
per jet
Gas flow
rate per jet
Natural gas G20, 2H, 2E
20 mbar 2,5 kW 4,0 l/min
Natural gas G20/G25, 2E+
20/25 mbar 2,5 kW 4,0/4,6 l/min
Natural gas G25, 2L
25 mbar 2,5 kW 4,6 l/min
Natural gas G25, 2LL
20 mbar 2,5 kW 4,6 l/min
Liquefied petroleum gas G30/G31, 3B/P
butane/propane
50 mbar
2,5 kW 182 g/h
Liquefied petroleum gas G30/G31, 3B/P
butane/propane
30 mbar
2,5 kW 182 g/h
Liquefied petroleum gas G30/G31, 3+
butane/propane
28-30/37 mbar
2,5 kW 182/178 g/h

GCM 642.1 25
Diameter of injectors
=Attention: Only use special injectors obtained frome the customer service!
The values in the table are stamped on the injectors! The use of larger
injectors than those approved for the gas connection pressure results in
failure of the appliance and damage to the user’s health (CO emission)!
The injectors are indicated 1/100 mm in the unit.
* These injectors are optimised for propane. They are used in Germany as
standard for the adjustment of liquefied gas. The operation with liquefied gas
mixture (butane/propane) has also been tested with these injectors and is
possible without interference.
Table of permitted gas types and gas pressures
Type of gas ∅injector for injectors
left right
Natural gas G20, 2H, 2E
20 mbar 2 x 0,85 mm 1,20 mm
Natural gas G20/G25, 2E+
20/25 mbar
Natural gas G25, 2L
25 mbar
2 x 0,85 mm
(length 16 mm)
1,20 mm
(length 16 mm)
Natural gas G25, 2LL
20 mbar 2 x 0,90 mm 1,25 mm
Liquefied petroleum gas G30/G31, 3B/P
butane/propane 50 mbar * 2 x 0,52 mm 0,72 mm
Liquefied petroleum gas G30/G31, 3B/P
butane/propane 30 mbar 2 x 0,54 mm 0,76 mm
Liquefied petroleum gas G30/G31, 3+
butane/propane 28-30/37 mbar
Land
(ISO-abbreviation)
Category Natural gas Liquefied petroleum gas
Germany (DE) II2ELL3B/P
E (G20) 20 mbar
LL (G25) 20 mbar
Bbutane/propane
(G30/G31, 3B/P) 50 mbar
Austria (AT) II2H3B/P H (G20) 20 mbar butane/propane
(G30/G31, 3B/P) 50 mbar
Switzerland (CH)
II2H3B/P H (G20) 20 mbar butane/propane
(G30/G31, 3B/P) 50 mbar
II2H3+ H (G20) 20 mbar Pressure couple butane/propane
(G30/G31) 28-30/37 mbar
Italy (IT) II2H3+ H (G20) 20 mbar Pressure couple butane/propane
(G30/G31) 28-30/37 mbar
Spain (ES) II2H3+ H (G20) 20 mbar Pressure couple butane/propane
(G30/G31) 28-30/37 mbar
United Kingdom (GB) II2H3+ H (G20) 20 mbar Pressure couple butane/propane
(G30/G31) 28-30/37 mbar
Netherlands (NL) II2L3B/P L (G25) 25 mbar butane/propane
(G30/G31, 3B/P) 30 mbar
Belgium (BE) II2E+3+ Pressure couple (G20/G25)
20/25 mbar
Pressure couple butane/propane
(G30/G31) 28-30/37 mbar
Luxembourg (LU) I2E E (G20) 20 mbar –
France (FR) II2E+3+ Pressure couple (G20/G25)
20/25 mbar
Pressure couple butane/propane
(G30/G31) 28-30/37 mbar