Neff T29V35 Instruction manual

Operating, installation

and caring instructions

T29P4N0

1

GB Operating, installation and caring instructions page 02

English

Dear Customer,
We thank you and congratulate you on your choice. This practical appliance,

which is modern and functional, has been manufactured from top-quality
materials which have been subjected to a strict quality control during the entire
manufacturing process and have been carefully tested so that they will meet all
your cooking needs.
We strongly advise you to read through these simple instructions, so as to ensure
that you get perfect results from the moment you first use this appliance. This
booklet contains important information, not only on how to use the appliance, but
also on maintenance and safety.
When our products are being transported, they must be provided with suitable
protective packaging. However, we have reduced our packaging to the bare
essentials, and the materials are all completely recyclable. You too can contribute
to the conservation of the environment by depositing the packaging in the nearest
recycling container. Before you get rid of an old appliance, make sure you render
it useless, and then take it to a centre for the recovering recyclable materials. Ask
your local authorities for details on the nearest centre to your home.

Safety Warnings

 Read this user’s manual carefully, to ensure that you use this appliance

as effectively and safely as possible.

 The following instructions are only valid in countries whose symbol

appears on the rating plate of the appliance. To adapt the appliance to
conditions of use in your country, always follow the technical instructions.

 Make sure you keep these instructions for use and assembly, so that you

can hand them on with the appliance if it ever changes owner.

 The diagrams contained in this instruction book are for orientation

purposes only.

 This appliance is intended solely for household use only.
 Only use this appliance for cooking, and never as a form of heating.
 In accordance with current regulations, installation of the appliance,

changing of gas types or other adjustments to the interior of the appliance
may only be carried out by an officially authorised technician.

 Before having your new cooking hob installed, check that the

measurements are correct.

2

 This appliance shall be installed in accordance with the regulations in

force and only used in a well ventilated location. Read the instructions
before installing or using this appliance.

 Isolate the appliance from the mains during every maintenance operation.

To do this, remove the plug from the mains or actuate the corresponding
fuse. Close the gas supply.

 This appliance should not be connected to a combustion produ cts

evacuation device.

 When connecting electrical appliances in the proximity of the appliance,

make sure that connection cables do no come into contact with hot
cooking surfaces.

 Thoroughly clean the appliance and accessories before using them for

the first time. This will eliminate any "newness" smells and soiling.

 Keep packaging from the appliance and dispose of it properly. Keep

packaging elements away from children.

 Do not leave the appliance unattended while in operation
 As the appliance’s heating and cooking surfaces get very hot during

operation, always use with care. Always, keep children away from the
appliance.

 Very hot fat or oil can easily catch fire, and so if you are cooking with fat

or oil keep an eye on the pan.

 DANGER If a pan containing fat or oil catches fire, do not pour water onto

it, as this may cause burns. Cover the pan with at damp cloth to
extinguish the fire and disconnect the cooking appliance.

 Never use a malfunctioning appliance.
 In the event of a malfunction, turn-off the appliance’s gas and electricity

supply, before calling our technical assistance service.

 Make sure that pans are always placed centrally on the gas burner and

never place the pot directly on the burners.

 Never place unstable pans or containers on the cooking hob or the

burners, as they may accidentally tip over.

 Do not operate the appliance without pots and pans placed on it. Make

sure that all the burner parts are correctly fitted.

 Do not heat up any empty pots or pans; this may result in a build-up of

heat.

 Be sure to switch the burners to the lowest setting whenever you remove

pots or pans briefly. In this way, you reduce the risk of burns when
working next to flames; you also save gas and reduce pollution.

 Pots and pans with thick bottoms can improve heat distribution. The

flame is better exploited and costs can be saved.

 Pots and pans with a diameter greater than 28cm should not be used.

Wok supports for concave woks are sold separately.

3

 If a gas tap gets stuck, do not force it. Call our service technician

immediately.

 Do not clean the appliance with a steam cleaning apparatus or with water

pressure – risk of short-circuiting.

 Whenever the appliance is fitted under a vapour extractor hood and the

hob is in use, always have pots or pans over the burners in use. With an
open flame the vapour extractor hood may become damaged by external
heat development or grease residues in the filter may ignite. Ensure an
adequate air supply when using a vapour extractor hood operating in the
exhaust air mode.

 Use of a gas cooker generates heat and humidity in the room where it is

installed. Please be sure you have good kitchen ventilation. Natural
ventilation openings must be kept unobstructed. Prolonged use of the
appliance with few or all burners may call for additional ventilation such
as opening a window or a door, and/or stronger air extraction by an
extractor hood.

 Make sure that the appliance is not subjected to strong draughts, as they

might blow out the burners.

 As the user, you are responsible for maintenance and proper use in the

household.

 Note: The rating plate for this appliance is included in this instructio n

manual. Keep the rating plate in a safe place along with your operating
and assembly instructions.

Please pay particular attention to Sections 3 and 4 of these operating
instructions so that you can enjoy all the advantages which this appliance
has to offer.

4

CONTENTS

1. INSTALLATION................................................................................................. 6

Before installation...................................................................................................6

Installation (for the installer)................................................................................... 8

Electrical connection............................................................................................. 10

Gas connection (for the fitter)............................................................................... 11

Caution................................................................................................................. 14

Converting the burners to another type of gas (for the fitter)............................... 15

Changing the nozzles........................................................................................... 15

Nozzle table.......................................................................................................... 16

2. OPERATION.................................................................................................... 17

This is your new hob............................................................................................. 17

Gas tap................................................................................................................. 17

Ignition.................................................................................................................. 18

Switching the Burners to the "Off Position".......................................................... 18

Note...................................................................................................................... 18

3. WHAT TO LOOK OUT FOR............................................................................ 19

A few tips on pots................................................................................................. 19

Notes on cooking using the wok burner............................................................... 20

4. CARE AND CLEANING................................................................................... 21

How to care for your gas hob: Cleaning............................................................... 21

Your burner and burner cap................................................................................. 22

Pan support.......................................................................................................... 23

Home troubleshooting .......................................................................................... 23

After-sales service.............................................................................................. 25

E number and FD-number.................................................................................... 25

Packing and old appliances.............................................................................. 25

5

1. INSTALLATION

Before
installation

These built-in hobs are intended for insertion into a
cut out in the worktop.

The appliance must only be connected by an
authorized gas and electrical fitter to ensure that
statutory regulations and the connection
requirements of the local electricity and gas supply
company are met.

Before installing the unit, remove any protective film.
When the hob is built in over a cabinet with drawers,

the upper drawer has to be replaced with a cabinet
front. No installation directly over a drawer!

Do not install refrigerators, dishwashers, ovens
and/or cookers or any laundry appliances
underneath the hob.

Be sure to keep minimum distances of 100 mm from
the side wall and 50 mm from the back wall. The
minimum width of the worktop should be 600 mm.

The installation dimensions can be seen on the
following page.

6

Chimney cooker hoods are to be installed in
accordance with the installation instructions of the
hood.

On the furniture into which the appliance is to be
installed, the plastic coating and/or veneer must
have been treated with a heat-resistant adhesive,
otherwise it may become distorted or peel off,
especially on the narrow sides.
The rough edges of the cut-out must be sealed
using a watertight material.

Prior to connection of the appliance, it must be
checked that the appliance specifications comply
with local connection requirements (gas type and
pressure). Please also check for any special
regulations of your local supply company.
The specifications of this appliance are listed on the
rating plates which are located on the underside of
the gas hob.

This appliance is not to be connected to the exhaust
air outlet. It must be installed and connected
according to the currently effective installation
conditions. Particular care must be taken to provide
suitable means of ventilation.

Dimensions in mm

7

Installation
(for the installer)

Picture 1

Installation must be made by a kitchen installation
expert.

Note: If you intend to have the gas hob welded into
a stainless steel worktop, for safety reasons and in
order to fully maintain the requirements of your
Siemens warranty, we recommend that this type of
installation be done solely through our designated
partner: Bautek. (Address available on request).

IMPORTANT!!!

The countertop must have a thickness of 30 mm and
a maximum of 40 mm. Do not use liquid silicone to
glue the hob to the countertop.
The furniture below the countertop should have an
opening for passage of the gas pipe and electric
wires measuring at least 50x50 mm. Any eventual
cabinet, resting on the worktop, at any of the two
sides of the hob, and the upstand on the back of the
hob, each must be at least 50 mm from the edge of
the hob itself. In case of elements sold complete
with cabinet, the instructions for installation of the
cooker hob are provided in the manual for the
cabinet.

Apply the sealing gasket along the edge of the
opening taking care to overlap the joints (picture 1).

Picture 2

Fit hook B in angle iron A welded on the unit
(picture 2) taking care to block it in the holes
provided, depending on the thickness of the
countertop (30 mm, max. 40 mm), picture 3.
Turn tab C and position it under the countertop, then
tighten screw D. Trim, if necessary, the part of the
gasket extending beyond the cooker hob.

8

Picture 3

9

Electrical
connection

Prior to connection check the voltage and total
output on the technical label affixed to the appliance.
It is obligatory that this appliance be earthed.
When connecting the appliance, ensure the earth
wire is connected first and that all wires are
connected to the correct terminals.

If a direct connection to the mains is required, it is
necessary to install a device that ensures an omni­polar disconnection from the mains, with an
opening distance of the contacts such as to ensure
the complete disconnection in the conditions
foreseen by the category of overvoltage III, as per
the installation’s regul ation.

This is not the case if the connection is by means of
a plug, provided the user has easy access to the
plug itself.

Fuse rating: 3 Amp.
When connecting the appliance please ensure that

the earthing wire is properly connected. In the event
of an accident due to the fact that the appliance is
not earthed, or that the earthing is faulty, we do not
accept any form of responsibility.

The type of cable connecting the appliance to the
electricity supply must be H05RR-F3 G 0.75.

In the event that the connecting cable must be
replaced due to damage only this type of cable
should be used. This should only be carried out by
one of our after-sales service technicians.

CE: This appliance complies with the following EU
directives:

- 72/23/EEC - Low Voltage Directive

- 89/336/EEC - EMC Directive

- 90/396/EEC - Directive on Gas Appliances

10

Gas connection
(for the fitter)

The gas supply system must comply with the
local standards in the country in effect.

Attach the elbow coupling to the appliance gas
supply, using the seal provided.

Your hob is pre-mounted with the connection
ISO 7-1. In order to change the elbow coupling

picture 4)

(see

Picture 4

11

12

In compliance with the currently effective
regulations, the hob must be connected to the gas
pipe with a stop valve. This valve must be easily
accessible at all times.

After connecting the unit to the gas mains always
check the seal of the connection us ing a solution of
soapy water.

Never check the seal using a flame.
Using flexible pipes:

• do not allow the pipes to be constricted or
crushed;

• the pipes must not be subjected to traction or
twisting forces;

• do not allow the pipes to come into contact with
cutting or sharp edges, etc...

• do not allow any gas connecting pipe and/or any
electric connecting wire to come into contact
with the bottom of the hob; make sure that the
entire length of the pipes and/or electric
connecting wire is available for inspection.

Particular care must be taken to ensure leak proof
connection.

The maximum permissible length of the gas
connecting pipe is 2.5 m.

IMPORTANT!!!

This safety gas tube must be routed in such a way
that it is not fed through hot areas and does not
come into contact with any hot parts of the
appliance, e.g. underside of hob.
Installation of the tube must ensure that it runs freely
and that it cannot come into contact with any
movable parts of the kitchen cabinets, e.g. a drawer.

13

Caution

Only switch on the circuit breaker or main switch
once the appliance has been installed. The
appliance must be installed in the furniture in
accordance with these operating, installation and
maintenance instructions.

It is important to note that we shall accept no liability
for damage which is a direct or indirect result of
improper connection or installation. The appliance
must always be disconnected from the mains before
repairs are carried out. If repairs are needed, never
open the appliance yourself, but call our after-sales
service.

Particular care must be taken to ensure
leak-proof connection!

Gas connection may only be completed by an
approved fitter in accordance with applicable
regulations.
In addition, local regulations and the require­ments of the local gas supply company must
also be observed.

This guarantees that the regulations and the local
supply company's requirements are observed.

14

Converting the
burners to
another type of
gas (for the fitter)

Changing the
nozzles

Picture 5

Picture 6

Nozzles for conversion to LPG are provided with
this appliance or can be obtained from the after
sales service (see list included).

Prior to making the necessary adjustments, the
hob must be disconnected from the mains.

To see which gas type has been preset in the
factory; refer to the rating plate in this manual or on
the underside of the hob.

CHANGING THE NOZZLES

The burners are adaptable to different types of gas
by replacing only the nozzles for the type of gas
used (see data table). To access the nozzle, simply
remove the cap and flame-breaker.
To change the nozzles, use a no. 7 socket wrench
(picture 5).

REGULATION OF MINIMUM FROM LPG TO NG

Our taps are suitable for all types of gas and are
regulated at the minimum as follows:

1. Light the burner and turn the knob to the
minimum position. If the flame should go out,
proceed as follows:
a.) light the burner at maximum capacity (large

flame)
b.) remove the knob
c.) introduce a small screwdriver in hole B on

the shaft of the tap (picture 6) and unscrew

the adjustment screw by two turns.
d.) replace the knob and turn to the minimum

2. Remove the knob from the tap

3. Introduce a small screwdriver in hole B

Check that when passing quickly from the maximum
position to the minimum the flame does not go out.

position (small flame)

(picture 6) and tighten or loosen the adjustment
screw (taking care not to turn the shaft of the
tap) until the burner flame is properly adjusted at
the minimum.

15

Nozzle table

REGULATION OF MINIMUM FROM NG TO LPG

1. Light the burner and turn the knob to the
minimum position.

2. Remove the knob from the tap

3. Introduce a small screwdriver in hole B
(picture 6) and tighten the adjusting screw
completely (taking care not to turn the shaft of
the tap).

Check that when passing quickly from the maximum
position to the minimum the flame does not go out.

16

2. OPERATION

This is your new
hob

Gas tap

1 Control knobs
2 Auxiliary burner, 1.0 kW
3 Semi - Rapid burner, 1.75 kW
4 Rapid burner, 2,7 kW
5 Triple Crown Wok burner, 3.5 kW

This control is used to make the heat setting of the
gas burner.

"Small flame" = lowest setting
"Large flame" = highest setting

Setting procedure:

The "large flame/highest flame" setting is used for
initial boiling. For ongoing cooking, a variable setting
between the "large flame/highest flame" and "small
flame" can be made.

• To reduce the flame from high to low, turn the
knob anti-clockwise to the required setting.

• To increase the flame, turn the knob clockwise
to the required setting, with a pan on the hob.

17

Ignition

Switching the
Burners to the

The knob for the relevant burner is first pushed
down and turned anti-clockwise to "large flame".
Press the knob down firmly and hold for approx. 3
seconds - only then will the gas be released from the
burner and safely ignited by the sparks. When the
burner is ignited release the knob.
Note: if it does not light immediately:

1. check gas supply and burner position.

2. try again while holding for up to 10 seconds.

If for any reason the burner flames are extinguished,
switch off the control knob and wait at least 1 minute
before making a new ignition attempt.

If the burner still doesn’t ignite call the after sales
service.

The burners are turned off by means of switching
the control knob to its initial position.

"Off Position"

Note

The use of a gas cooker leads to the production of
heat and moisture in the kitchen. For this reason,
make sure that the room is properly ventilated: Keep
natural ventilation openings open or provide a
mechanical ventilating device (e. g. an exhauster
hood).

Long and intensive use of the appliance may
necessitate additional ventilation, e. g. opening of a
window, or a more effective type of ventilation, such
as a mechanical appliance operating on a higher
power stage.

18

3. WHAT TO LOOK OUT FOR

A few tips on pots

Always use the correct pan for the correct burner!
Do not use small pots or pans on large burners.

Please see the below table for the correct pot sizes.

Auxiliary burner 60 - 140 mm
Semi-Rapid burner 150 - 200 mm
Rapid burner 210 - 260 mm
Triple Crown Wok burner 240 - 280 mm

Placing a pot of the correct size on the correct
burner will save you energy, time and money.

Warning:

• Make sure that pans are always placed centrally
on the gas burner and never place the pot
directly on the burners.

• The pots should not come onto, or in any way, in
contact with the countertop.

Recommended pan
diameter

19

Notes on cooking
using the wok
burner

The diameter of the saucepan or frying pan base
must be no greater than 280 mm. Using larger pans
could cause the hot waste gas flowing out from
underneath the pan to damage the worktop or a wall
that is not heat-resistant.

Note:

When using a concave wok pan, please use the
additional wok support which has to be placed on
the main pan support over the wok burner.

When using your concave wok pan, please make
sure that the wok pan is placed over the wok
support; the bottom of the wok pan is not to come in
direct contact with the main pan support or burner.

20

4. CARE AND CLEANING

How to care for
your gas hob:
Cleaning

If cared for properly, your gas hob will continue to
look good for a long time, and cleaning will also be
easier.
Use a sponge and soapy water (or a specialist
cleaning product) to care for stainless steel
components, but always wait until the appliance has
cooled down completely. In the event of yellowing; a
special stainless steel cleaning solution available in
the trade is recommended. Use a clean, dry cloth to
polish the hob, or better still a chamois leather.

The control knobs can be removed by pulling them
upwards. Never use pliers or attempt to lever off the
controls.

Unsuitable cleaning agents:

Do not under any circumstances use an abrasive
sponge or a scouring agent. Do not use acidic
substances (lemon juice, vinegar etc.). Nor should
any chemically aggressive cleaners such as oven
sprays or stain removers be used.

21

Your burner and
burner cap

• You should only start to clean the burner cap
once it has cooled to its normal temperature
after use, i.e. when you can touch it with your
bare hand.

• The burner cap should be cleaned with hot
water and a normal cleaning agent, using a soft
sponge or cloth.

• If the cap is very dirty, we recommend that you
soak the removable parts in warm water before
attempting to clean them.

• Avoid scraping off food residues if possible.

• Cleaning the burner cap with caustic chemicals

is just as damaging as using acids or paint
stripper.

• Rough pan scourers or sand paper will ruin the
surface just as sc ouring powder and glass wool
do.

• Do not clean the burner cap in a dishwasher.

Once the surface of the appliance has been
cleaned, ensure that the burner cap is put back on
properly; otherwise the electrical ignition will not
connect. The burner and the burner cap must be
completely dry before they are replaced.

22

Pan support

Home
troubleshooting

• Only clean the pan support once it has cooled to
its normal temperature, i.e. when you can touch
it with your bare hand.

• The pan support can be removed for cleaning.

• The pan support should be cleaned with hot

water and a standard cleaning agent, using a
soft sponge or cloth and afterwards, dried
thoroughly with a towel.

• Never use aggressive or abrasive cleaning
products.

• Avoid scraping off food residues if possible.

• Cleaning the burner cap with caustic chemicals

is just as damaging as using acids or paint
stripper.

• Rough pan scourers or sand paper will ruin the
surface just as sc ouring powder and glass wool
do.

• Do not clean the pan stands in a dishwasher.

The pan stands must be completely dry before they
are replaced.

You do not always need to call the After Sales
Technical Assistance. Very often, you can solve the
problem on your own. The table on the following
page contains a few pieces of advice.

Important note:

Only authorised personnel from our After Sales
Technical Department can carry out work on the gas
and electrical supply systems.

23

What has gone

wrong?

The electric sparker

does not work

The flames on the

burners are not

uniform

...if the gas flow does

not seem normal, or

no gas comes out?

There is a smell of

gas in the kitchen

area

Probable cause Solution

- Defective fuse. - Check the fuse in the main fuse

- The automatic fuse may have
fused or the trip switch has
tripped.

- There may be food or
cleaning residue between the
sparker and the burners.

- The burners are wet. - Dry the burner covers and

- The burner covers are not
properly seated.

- No electrical connection - Make sure that the electrical

- The different parts of the
burners have not been properly
seated.

- The grooves on the burners'
gas outlets are dirty.

- The gas mains are turned off. - Turn on all mains' taps.

- If the gas is coming from a
gas bottle, it may be empty.

- There may be a leak at the
connection between the pipe
and the main gas supply.

box and change it if necessary.

- Check the main fuse box to see
whether the automatic trip switch
or a differential switch has
tripped.

- Carefully clean the spaces
between the sparker and the
burners.

sparkers carefully

- Make sure that the burner
covers are properly seated.

connection has been done
correctly.

- Place the different pieces in the
correct position.

- Clean the grooves on the
burners' gas outlets.

- Replace the gas bottle with a
full one.

- Make sure that the connection
is airtight.

...if the safety valves

on the different

burners do not work?

24

- The control knob has not
been pressed in for long
enough.

- The grooves on the burners'
gas outlets are dirty.

- Light the burner, and then keep
the control knob pressed in a few
seconds longer.

- Clean the grooves on the
burners' gas outlets.

After-sales service

E number and
FD-number

Our after-sales service is there for you if your hob
should need to be repaired. You will find the address
and telephone number of your nearest after-sales
service centre in the phone book. The after-sales
service centres listed will also be happy to advice
you of a service point in your local area.

Please provide the E number (product number) and
the FD number (production number) of your
appliance when contacting the After Sales Service.
The rating plate with the numbers can be found in
this manual or on the under side of the hob.

Packing and old appliances

Your new appliance was protected by suitable
packaging while it was on its way to you. All
materials used for this purpose are environmentally
friendly and can be recycled. Please make a
contribution to protecting the environment by
disposing of the packaging appropriately.

Old appliances are not worthless rubbish.
Environmentally-conscious recycling can reclaim
valuable raw materials.
Before disposing of your old appliance, please make
sure that it is unusable, or label it with a sticker
stating "Caution, scrap".

Up-to-date information on how to dispose of your old
appliance and the packaging from the new one can
be obtained from your retailer or local authority.

25

This appliance is marked according to the European
directive 2002/96/EC on Waste Electrical and
Electronic Equipment (WEEE).By ensuring this
product is disposed of correctly, you will help
prevent potential negative consequences for the
environment and human health, which could
otherwise be caused by inappropriate waste
handling of this product.

The symbol
accompanying the product, indicates that this
appliance may not be treated as household waste.
Instead it shall be handed over to the applicable
collection point for the recycling of electrical and
electronic equipment. Disposal must be carried out
in accordance with local environmental regulations
for waste disposal.
For more detailed information about treatment,
recovery and recycling of this product, please
contact your local city office, your household waste
disposal service or the shop where you purchased
the product.

on the product, or on the documents

26

Service

If you should contact our Customer
Service, please state E- and
FD-number of your gas hob.

Neff GmbH

Carl-Wery-Str. 34

D-81739 München

10.2007

27