Bosch NCT 675 N Manual

BOSCH
IT Istruzioni per l’uso
GB Directions for use
ES Instrucciones de manejo
PT Instruções de Serviço
FR Mode d’emploi
DE Gebrauchsanleitung
NL Gebruiksaanwijzing
NCT 685 C
NET 682 C
NCT 685 B
NCT 685 N
NET 682 N
NCT 675 N BOSCH

ITALIANO 3 –17
Vi ringraziamo per aver scelto questo nostro prodotto.
Vi consigliamo di leggere attentamente questo manuale, che riporta tutte le
indicazioni per mantenere inalterate le qualità estetiche e funzionali del piano di
cottura.
ENGLISH 18 –32
Thank you for choosing our product.
We advise you to read this manual carefully. It contains all necessary instructions for
maintaining unaltered the appearance and functional qualities of the cooking hob.
ESPAÑOL 33 –47
Les agradecemos haber elegido nuestro producto.
Le aconsejamos leer atentamente todas las instrucciones de este manual que ofrece
todas las indicaciones necesarias para mantener inalterables las cualidades
estéticas y funcionales de la encimera de cocción.
PORTUGUÊS48 –62
Agradecemos por ter escolhido este nosso produto.
Aconselhamos a leitura atenta deste manual, onde se encontram todas as
indicações para manter inalteradas as qualidades estéticas e funcionais da placa de
fogão.
FRANÇAIS 63 –77
Merci d'avoir choisi notre produit.
Nous vous conseillons de lire attentivement ce manuel dans lequel figurent toutes les
indications pour maintenir inaltérées les qualités esthétiques et fonctionnelles de
votre table de cuisson.
DEUTSCH 78 –92
Wir danken Ihnen dafür, daß Sie unser Erzeugnis gewählt haben.
Bitte lesen Sie zuerst alle Anweisungen in dieser Gebrauchsanweisung aufmerksam
durch, um die Kochmulde lange Jahre in schönem und leistungsfähigem Zustand zu
erhalten.
NEDERLANDS 93 - 107
Wij danken u voor uw keuze van ons product.
Wij raden u aan alle instructies in deze handleiding door te lezen, hicrin zijn alle
aanwijzingen opgenomen om de functionele en esthetische eigenschappen van de
kookplaat ongewijzigd te handhaven.

Contents
18
1. INSTRUCTIONS FOR SAFE AND PROPER USE _______________19
2. POSITIONING OF HOB ____________________________________21
3. ELECTRICAL CONNECTION _______________________________22
4. GAS CONNECTION_______________________________________23
5. ADAPTATION TO DIFFERENT TYPES OF GAS ________________25
6. FINAL OPERATIONS______________________________________28
7. USING THE HOB _________________________________________30
8. CLEANING AND MAINTENANCE ____________________________32
THESE INSTRUCTIONS ARE VALID ONLY FOR END USER COUNTRIES WHOSE
IDENTIFICATION SYMBOLS APPEAR ON THE COVER OF THIS MANUAL.
INSTRUCTIONS FOR THE INSTALLER: these are for the qualified
technician who must carry out a suitable check of the gas system,
install the appliance, set it functioning and carry out an inspection test.
INSTRUCTIONS FOR THE USER: these contain user advice,
description of the commands and the correct procedures for cleaning
and maintenance of the appliance.

Introduction
19
1. INSTRUCTIONS FOR SAFE AND PROPER USE
THIS MANUAL IS AN INTEGRAL PART OF THE APPLIANCE AND
THEREFORE MUST BE KEPT IN ITS ENTIRETY AND IN AN ACCESSIBLE
PLACE FOR THE WHOLE WORKING LIFE OF THE COOKING HOB. WE
ADVISE READING THIS MANUAL AND ALL THE INSTRUCTIONS
THEREIN BEFORE USING THE COOKING HOB. ALSO KEEP THE SERIES
OF NOZZLES SUPPLIED. INSTALLATION MUST BE CARRIED OUT BY
QUALIFIED PERSONNEL IN ACCORDANCE WITH THE REGULATIONS IN
FORCE. THIS APPLIANCE IS INTENDED FOR DOMESTIC USES AND
CONFORMS TO CURRENT REGULATIONS IN FORCE. THE APPLIANCE
HAS BEEN BUILT TO CARRY OUT THE FOLLOWING FUNCTIONS:
COOKING AND HEATING-UP OF FOOD. ALL OTHER USES ARE
CONSIDERED IMPROPER.
THE MANUFACTURER DECLINES ALL RESPONSIBILITY FOR
IMPROPER USE.
DO NOT LEAVE THE PACKING IN THE HOME ENVIRONMENT.
SEPARATE THE VARIOUS WASTE MATERIALS AND TAKE THEM TO
THE NEAREST SPECIAL GARBAGE COLLECTION CENTRE.
IT IS OBLIGATORY FOR THE ELECTRICAL SYSTEM TO BE GROUNDED
ACCORDING TO THE METHODS REQUIRED BY SAFETY RULES.
THE PLUG TO BE CONNECTED TO THE POWER CABLE AND THE
SOCKET MUST BE THE SAME TYPE AND MUST CONFORM TO
CURRENT REGULATIONS.
NEVER UNPLUG BY PULLING ON THE CABLE.
IMMEDIATELY AFTER INSTALLATION CARRY OUT A BRIEF INSPECTION
TEST OF THE COOKING HOB, FOLLOWING THE INSTRUCTIONS
BELOW. SHOULD THE APPLIANCE NOT FUNCTION, DISCONNECT IT
FROM THE SUPPLY AND CALL THE NEAREST TECHNICAL ASSISTANCE
CENTRE.
NEVER ATTEMPT TO REPAIR THE APPLIANCE.
ALWAYS CHECK THAT THE CONTROL KNOBS ARE IN THE POSITION
"ZERO" (OFF) WHEN YOU FINISH USING THE HOB.

Introduction
20
THE IDENTIFICATION PLATE, WITH TECHNICAL DATA, SERIAL NUMBER
AND MARKING IS CLEARLY VISIBLE UNDER THE CASING.
THE PLATE ON THE CASING MUST NOT BE REMOVED.
BEFORE CONNECTING THE DEVICE, MAKE SURE THAT IT HAS BEEN
REGULATED FOR THE TYPE OF GAS THAT WILL FEED IT, CHECKING
THE LABEL UNDER THE CASING.
DO NOT PUT PANS WITHOUT PERFECTLY SMOOTH AND FLAT
BOTTOMS ON THE COOKING HOB GRIDS.
DO NOT USE RECIPIENTS OR GRIDDLE PLATES THAT EXTEND
BEYOND THE EXTERNAL PERIMETER OF THE HOB.
THE HOB IS TO BE USED BY ADULTS ONLY. DO NOT LET
UNSUPERVISED CHILDREN PLAY WITH THE HOB.
REPLACED APPLIANCES MUST BE TAKEN TO A SPECIAL GARBAGE
COLLECTION CENTRE.
The manufacturer declines all responsibility for damage to
persons or things caused by non-observance of the above
prescriptions or by interference with any part of the appliance or by
the use of non-original spares.

Instructions for the installer
21
2. POSITIONING OF HOB
The following operation requires building and/or carpentry work so must
be carried out by a competent tradesman.
Installation can be carried out on various materials such as masonry,
metal, solid wood or plastic laminated wood as long as they are heat
resistant (T 90°C).
2.1.1 Attachment to support structure
Create an opening with the
dimensions shown in the figure in the
top surface of the counter, keeping a
minimum distance of 50 mm from
the rear border.
This device is classified "type Y" as
regards risks against fire and it can
be set adjacent to walls that are
higher than the work surface,
provided that a distance of 145 mm.
is respected (as shown in the figure)
to prevent damage due to
overheating.
Make sure there is a minimum of 750 mm between the hot plate flames
and any shelf that may be installed directly above them.
Carefully position the insulation gasket (supplied) on the external
perimeter of the hole made in the top surface (see figures below) and try
to make it stick to the entire surface by applying light pressure with your
hands. Refer to the coordinates shown in the figure, bearing in mind that
sides Ashould be adjacent to the hole. Secure the hob to the counter
with brackets B(supplied). Carefully trim any excess from border Cof the
gasket. The distances in the following drawing refer to the hole on the
inner side of the gasket.

Instructions for the installer
22
3. ELECTRICAL CONNECTION
Make sure that the voltage and capacity of the power line conform to the
data shown on the plate located under the casing. Do not remove this
plate for any reason.
The plug on the end of the supply cable and the wall socket must be the
same type and conform to the current electrical system regulations.
Check that the power line is adequately grounded.
On the power line, install an omnipolar cut-off device with contact cut-off
distance greater than or equal to 3 mm, located in an easily accessible
position near the unit.
Do not use reducers, adapters or shunts.
If the power cable is replaced, the wire section on the new cable must
not be less than 0.75 mm2(3 x 0.75 cable), keeping in mind that the end
to be connected to the hob must have the ground wire (yellow-green)
longer by at least 20 mm. Use only H05V2V2-F cable or similar which has
a maximum temperature of 90°C. Any replacement needed should be
carried out by a specialised technician who should make the mains
connections according to the following diagram.
L= brown
N= blue
= yellow-green
The manufacturer will not be liable for any damage to persons or
property caused by non-observance of the above instructions or deriving
from the tampering of even a single part of the hob.

Instructions for the installer
23
4. GAS CONNECTION
Connection to the gas mains may be made with a rigid copper pipe or
with a flexible pipe and conforming to the provisions defined by standard
regulations in force.
To facilitate connection, fitting Aon the rear of the appliance may be
adjusted laterally. For this purpose, loosen hexagon nut B, turn fitting A
to the desired position, and retighten hexagon nut B(tightness is ensured
by a biconical brass ring). Use a soapy solution to check for proper
tightness. Never use a free flame.
The hob has been inspected for G20 (2H) natural gas at a pressure of
20 mbar. For use with other types of gases, see Section “5.
ADAPTATION TO DIFFERENT TYPES OF GAS”. The gas intake fitting
is ½” gas external threaded (ISO 228-1).
Connection with rigid copper pipe:
the connection to the gas mains must
not provoke stress of any kind on the
hob.
Connection may be made by using
biconical adapter Dwith insertion of
gasket C(supplied).
Connection with flexible pipe: use
only flexible pipes conforming to
standard regulations in force, inserting
gasket C(supplied) between fitting A
and flexible pipe E.
The flexible pipe has to be installed so that pipe length does not exceed
1.5 meters of maximum extension. Make sure that the pipes do not touch
any moving parts or become damaged.

Instructions for the installer
24
4.1 Connection to LPG
Use a pressure regulator and make the connection to the tank according
to the provisions of standards regulations in force. Make sure that feed
pressure conforms to the levels shown in the table in paragraph “5.2
Regulation for LPG”.
4.2 Ventilation of rooms
The hob may be installed only in rooms with permanent ventilation, as
required by standards regulations in force. The room in which the hob is
installed must have sufficient air flow to satisfy the requirements of
normal gas combustion and of necessary air exchange in the room. The
air intakes, protected by screens, must be appropriately sized
(regulations in force) and placed so as not to be blocked in any way.
The room where the oven is installed should be suitably ventilated to
avoid overheating or excess humidity produced by cooking, and in the
case of lengthy use a window should be opened or the speed of any
ventilators should be increased.
4.3 Discharge of combustion products
Discharge of combustion products must be guaranteed by means of
hoods connected to a natural draught flue with certain efficiency, or by
means of forced aspiration.
An efficient aspiration system requires careful planning by a specialist
capable of installing it, respecting the positions and distances prescribed
by standards. After installation, the installer must issue a certificate of
conformity.

Instructions for the installer
25
5. ADAPTATIONTO DIFFERENTTYPES OF GAS
Before performing any cleaning or maintenance work, detach the
appliance from the electrical socket.
The hob has been inspected for G20 (2H) natural gas at a pressure of
20 mbar. For functioning with other types of gas the nozzles must be
replaced and the primary air adjusted.
To replace the nozzles and regulate the burners, you have to remove the
top as described in the following paragraph.
5.1 Removing the hob
1. Remove all the knobs, the grids, the burner caps and the flame-caps;
2. remove the screws and the nuts Athat secure the burner supports;
3. remove plates B;
4. lift the hob from its seat;
5. replace the burner nozzles in accordance with the reference gas
chart;
6. regulate the primary air as described in paragraph “5.2 Regulation
for LPG”.

Instructions for the installer
26
5.2 Regulation for LPG
Loosen screw Aand push support Ball the way. Use a double head
wrench to remove nozzle Cand assemble the suitable one, following the
instructions indicated in the reference charts, with respect to the type of
gas to use. The screwing torque of the nozzle should never exceed
3 Nm. Reposition support Bso that nozzle Cis covered perfectly.
Move the Venturi tube Dto regulate the air flow until distance "X" is
reached indicated in the chart in paragraph "5.4 Regulation of primary air”
and then secure the tube by means of screw A. After the regulations
have been carried out, restore the seals with sealing wax or equivalent
material.
Burner
Rated
heating
capacity
(kW)
LPG – G30/G31 28/37 mbar
Nozzle
diameter
1/100 mm
By-pass
mm
1/100
Reduced
flowrate
(W)
Flowrate
g/h G30
Flowrate
g/h G31
Auxiliary (1) 1.05 48 30 33 (*) 380 76 75
Semi-rapid (2) 1.65 62 30 33 (*) 380 120 118
Average rapid (3) 2.55 76 37 40 (*) 750 185 182
Large rapid (4) 3.1 85 45 800 225 222
Triple crown (5) 3.9 95 65 1700 283 279
Triple crown (6) 3.3 87 65 1700 240 236
internal (7) 0.8 42 26 33 (*) 380 58 57Double crown
external (7) 3.3 87 55 1200 240 236
(*) By-pass value for valveless appliances.

Instructions for the installer
27
5.3 Regulation for natural gas
The hob has been inspected for G20 (2H) natural gas at a pressure of
20 mbar. To allow the unit to work with this type of gas, perform the same
operations described in paragraph “5.2 Regulation for LPG”, but choose
the nozzles and regulate the primary air for natural gas, as shown in the
following table and in paragraph “5.4 Regulation of primary air”. After the
regulations have been carried out, restore the seals with sealing wax or
equivalent material.
Burner
Rated heating
capacity
(kW)
Natural gas – G20 20 mbar
Nozzle diameter
1/100 mm
Reduced flowrate
(W)
Auxiliary (1) 1.05 73 380
Semi-rapid (2) 1.65 92 380
Average rapid (3) 2.55 115 750
Large rapid (4) 3.1 126 800
Triple crown (5) 3.9 140 1400
Triple crown (6) 3.3 130 1400
internal (7) 0.8 67 380Double crown
external (7) 3.3 130 900
5.4 Regulation of primary air
Referred to distance “X” in mm.
BURNER G20
20 mbar
G30/G31
28/37 mbar
Auxiliary (1) 1.5 1
Semi-rapid (2) 1.5 1.5
Average rapid (3) 1 1.5
Large rapid (4) 1.5 2.5
Triple crown (5) 2 3.5
Triple crown (6) 1 2.5
internal (7) 0.5 1.5Double crown
external (7) 1 4

Instructions for the installer
28
6. FINAL OPERATIONS
Having carried out the above adjustments, reassemble the appliance
following, backwards, the instructions in paragraph “5.1 Removing the
hob”.
6.1 Regulation of minimum for natural gas
Replace the components on the burner and slide
the knobs on the gas tap pins.
Light the burner and set it at minimum position.
Remove the knob and turn the regulation screw
inside or next to the gas tap pin (depending on
the model) until you get a suitable minimum
flame.
Replace the knob and check burner flame
stability: (rapidly turning the knob from maximum
to minimum position, the flame should not go
out).
6.2 Regulation of minimum for LPG
To regulate the minimum for LPG, completely tighten (clockwise) the
screw inside or next to the gas tap pin (depending on the model).
The diameters of the by-passes for each burner are given in table “5.2
Regulation for LPG”.
After having regulated the device with gas other than the one tested,
replace the label located on the guard with the one that corresponds to
the new gas. The label is inside the bag that contains the nozzles
provided.

Instructions for the installer
29
6.3 Arrangement of burners on hob
BURNERS
1 Auxiliary
2Semi-rapid
3Average rapid
4Large rapid
5-6 Triple crown
7Double crown
6.4 Lubrication of gas taps
After a while, the gas tap may become hard to turn or lock. If this
happens, it has to be cleaned inside and re-greased.
This must be done by a qualified technician.

Instructions for the user
30
7. USINGTHE HOB
Make sure that the flame-baffle crowns, the caps and the grid have been
assembled correctly. Grid A(supplied) should be used for "woks"
(Chinese pots).
Adapter B(supplied) is to be used for small vessels.
7.1 Ignition of the burners with safety device
For each knob the corresponding burner is indicated. The device is fit
with electronic ignition. Simply press and simultaneously turn the knob
counter-clockwise on the low point flame symbol, until the burner is
ignited. Concerning models with valves, push the knob for approximately
2 seconds in order to keep the flame burning and to activate the safety
device. The burner might go off when the knob is released. In this case
repeat the aforesaid operation keeping the knob pressed for more than 2
seconds.
Should the burners go off accidentally in the models with valves, a safety
device will trip after approximately 20 seconds to block the gas outlet
even if the cock is open.
7.2 Practical advice for using the burners
For better burner performance and minimum gas
consumption, flat bottomed, even recipients must
be used, with covers and proportional in size to
the burners (see paragraph “7.3 Diameter of
containers”).
To avoid overcooking or damage to the surface
top while cooking, all recipients or griddles must
be positioned within the cooking hob perimeter
and must be a minimum distance of 3-4 cm from
the knobs.

Instructions for the user
31
7.3 Diameter of containers
BURNERS
1 Auxiliary
2Semi-rapid
3Average rapid
4Large rapid
5-6 Triple crown
7Double crown
Ø min. e max.
(in cm)
7-18
10-24
12-24
14-28
22-26
12-34

Instructions for the user
32
8. CLEANING AND MAINTENANCE
Before any intervention, disconnect the power supply of the device.
8.1 Cleaning
Clean the cooking top regularly every time you use it, obviously after it
has cooled.
8.1.1 Regular daily cleaning of the hob
In order to clean and preserve the surface, always use specific products
only, which do not contain abrasive substances or chlorine-based acid
substances.
How to use: pour the product on a damp cloth and wipe the surface,
rinse thoroughly and dry with a soft cloth or deerskin.
8.1.2 Food stains or residues
Do not use metallic sponges or sharp scrapers: they will
damage the surface.
Use normal non-abrasive products and remove spots or
residuals with non-scratch sponges or, if need be, with wood or
plastic utensils.
Rinse thoroughly and dry with a soft cloth or deerskin.
8.2 Cleaning of cooking hob components
Grids, caps, flame cap crowns and burners can be
removed for ease of cleaning. Wash them in warm
water using a non-abrasive detergent, taking care
to remove all tough spots. Before remounting, allow
the components to fully dry out.
8.2.1 Ignition plugs and safety devices
For good functioning of the lighting ignition plugs and the safety devices,
keep them very clean.
Check frequently and clean with a damp cloth when necessary.