Bosch PRA326B92X/02 User manual

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EN Operating instructions
PRA326B92X
to be used with Town Gas

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Table of contents
Safety precautions....................................................5
Your new appliance..................................................8
The gas burner.........................................................9
Switching on automatically ................................................... 9
Safety system ..................................................................... 10
Switching off the burner...................................................... 10
Power levels ....................................................................... 10
Warnings ............................................................................ 10
Suitable pans ...................................................................... 11
Accessories........................................................................ 12
Cooking recommendations................................................. 12
Precautions for use.................................................13
Cleaning and maintenance.....................................14
Cleaning ............................................................................. 14
Unsuitable products............................................................ 14
Maintenance ....................................................................... 14
Faults......................................................................15
Technical Assistance Service.................................16
Warranty conditions............................................................ 16
Used appliances and packaging.............................16

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Dear customer,
Congratulations on your choice and thank you for purchasing one of our
appliances. This practical, modern and functional appliance is manufactured using
materials of the highest quality which are subject to strict Quality Control checks
throughout the entire manufacturing process. The appliance is meticulously tested
to ensure that it meets your demands and produces perfect cooking results.
Do not remove the appliance from its protective packaging until it is installed in the
unit.
Please read these instructions carefully before proceeding to install and use the
appliance. The information contained in these instructions is essential for the
correct operation of the appliance and, more importantly, for your safety.
The packaging of your appliance has been manufactured using only the materials
which are strictly necessary to guarantee efficient protection during transport.
These materials are 100% recyclable, thus reducing the environmental impact. You
can also contribute to caring for the environment, by following the advice below:
- dispose of the packaging in the appropriate recycling bin.
- before you get rid of an old appliance, make sure you disable it. Contact your local
authority to find out the address of your nearest recycling centre to dispose of your
appliance.
- do not pour used oil down the sink. Collect it in a sealed container and take it to
an appropriate collection point or, failing that, place it in the rubbish bin (it will end
up in a controlled dump; this is probably not the best option, but it will avoid
contaminating ground water).
IMPORTANT:
In the unlikely event that the appliance should be damaged or not meet your
expectations in terms of quality, please inform us as soon as possible. For the
warranty to be valid, the appliance must not have been tampered with, or used
inappropriately.

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Safety precautions
Read these instructions carefully. Reading these
instructions will enable you to use your appliance
safely and effectively.
Use approved gas tubing bearing EMSD approval
marking (example: 機電工程署批准 EMSD
APPROVAL GTXXXX) for connection to appliances,
or other appropriate methods accepted by EMSD.
HK Town Gas connection
External Gas Governor Beckley 2300 or Elitre EL-130
should be installed, the operating pressure is
12.5mbar.
Attention! According to the Gas Safety
Ordinance of Hong Kong, any gas installation
works including the installation of appliances
and connection tubing, must be undertaken by
registered gas installers who are registered for
that appropriate classes and be employed by
registered gas contractors.
When installing built-in gas hob on top of stove
cabinet, please check that there is provision for
ventilation at the cabinet to ensure proper
operation of the gas hob.
Do not store any flammable materials, sprays or
pressurized containers inside the stove cabinet.
The panel of this built-in hob is made of ceramic
glass which is safer than normal glass for this
application. However, the following safety
precautions for using gas hob with glass top
panel should also be noted in order to prevent
the glass top panel from breaking：
1. Clean the burner assembly frequently to
maintain a clear gas passage on the flame
distributor. Clean and tidy up the flame
distributor after spillage of food and liquid once
the burner assembly cooled down.
2. Turn off the gas appliance immediately if
abnormal noise propagates from the gas
appliance and contact an gas supply company
or gas hob importer for inspection.
3. Do not use oversized utensils for cooking.
4. Do not impact the glass surface with hard
objects or place heavy objects on the glass
surface.

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Please do not use additional fitting, such as
aluminum cover.
All operations relating to installation and regulation
must be carried out by an authorised installation
engineer, respecting applicable regulations,
standards and the specifications of the local gas
and electricity providers.
Before installing your new hob, ensure that it is
being installed according to the assembly
instructions.
This appliance can only be installed in a well
ventilated place in accordance with existing
regulations and ventilation specifications. The
appliance must not be connected to a combustion
product removal device.
This appliance has been designed for home use
only, not for commercial or professional use. This
appliance cannot be installed on yachts or in
caravans. The warranty will only be valid if the
appliance is used for the purpose for which it was
designed.
The place in which the appliance is installed must
have fully- functioning ventilation, in accordance with
the regulations.
Do not subject the appliance to draughts. These
might blow out the burner.
This appliance leaves the factory set to the type of
gas that is indicated on the specifications plate. It
must not be changed to another type of gas.
Do not tamper with the appliance’s interior. If
necessary, call our Technical Assistance Service.
These operating and installation instructions should
be retained, and passed onto the buyer if the
appliance is sold.
Do not switch on the appliance if it is damaged in
any way. Contact our Technical Assistance Service.
The surface of cooking appliances heat up during
use. Care must be taken when using these
appliances. Keep children well away from the
appliance.
This appliance is only intended for cooking
purposes, not as a heating system.
Fat or oil which is overheated can catch fire easily.
Do not leave oil or fats to heat up unattended. If oil
or fats do catch fire, never use water to put the fire

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out. Risk of burns! Put the fire out by covering the
pan with a lid and switch off the hotplate.
In the event of a malfunction, turn off the
appliance’s gas and electricity supply. For repairs,
call our Technical Assistance Service.
If one of the controls will not turn, do not force it.
Call the Technical Assistance Service immediately,
so that they can repair or replace it.
Never place unstable pans on the hob or the
burners, as they may accidentally tip over.
Do not clean the hob using a steam cleaner. Risk of
electrocution!
This appliance is class 3 type, according to EN 30-1-
1 standard for gas appliances: built-in appliance.
Do not store or use corrosive chemicals, steamers,
flammable materials or non-food products below or
near this domestic appliance.
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 use of the
appliance by a person responsible for their safety.
Never let children play with the appliance.
Never leave the appliance unattended during
operation.
The graphics in this instruction manual are
given as a guide only.
The manufacturer is exempt from all
responsibility
if the requirements of this manual
are not complied with.

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Your new appliance
Product description: Double-flame burner town gas hob with flame sensor safety
device.
Heat input: 6.0 kW (with Hong Kong town gas at 12.5 mbar)
Product dimension: 527 x 306 x 87 mm (D x W x H)
Net weight: 8,0 kg
Operating gas pressure/
outlet pressure of
governor:
12.5 mbar (Hong Kong town gas)
Dual double-flame
burner
Pan support
Control knob
This individual appliance can be combined and/or with conventional hobs of the same
make, using the joint accessory. See the catalogue for details.

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The gas burner
OperationIt is essential to ensure that all the burner parts and the pan
supports are correctly installed for the appliance to work
correctly. Fig. 1 + 2.
1 burner cover
2 burner cap
3 outer burner spreader
4 intermediary ring
5flame diffuser
Fig. 1
Fig. 2
Switching on
automatically 1. Press the burner control and turn it anticlockwise to the
ignition position .
While the control is still pressed down, sparks are produced
on the burner. The flame ignites (it is no longer necessary to
press down the control).
2. Turn the control to the required setting.
If it does not come on, turn the control to the off setting Úand
repeat the steps above. This time, press and hold the control
for longer (up to 10 seconds).
Warning! If after 15 seconds have elapsed, the flame does not
ignite, switch off the burner and open a nearby window or
door. Wait at least one minute before trying to switch the
burner back on.

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Safety system Your hob has a safety system (thermocouple) that prevents
the flow of gas if the burner accidentally switches off. To
ensure that this device is active, switch on the burner as usual
and, without releasing the control, press and hold it down
firmly for 4 seconds after lighting the flame.
Switching off the
burner Turn the control clockwise to the off setting Ú.
Power levels The progressive controls can be used to control the power
needed, from minimum to maximum power.
For dual double flame burners, the inner and outer flames can
be controlled separately.
The available power levels are as follows:
Inner and outer flame on full power.
Outer flame on minimum, inner flame on full power.
Inner flame on full power.
Inner flame on minimum power.
Warnings It is normal to hear a slight whistling noise while the burner is
operating.
When it is first used, it is normal for the burner to give off
odours; this does not pose any risk and does not indicate a
malfunction; they will disappear in time.
A few seconds after the burner is switched off, a sound (thud)
will be produced. This is not a fault – this means that the
safety device is no longer operating.

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Keep the burner as clean as possible. If the ignition sparkers
are dirty, they will not light properly. Clean them periodically
using a small non-wire brush. Bear in mind that the ignition
sparkers must not suffer any serious impacts.
An orange-coloured flame is normal. This is caused by the
presence of dust in the atmosphere, spilt liquids, etc.
The kitchen will become hot and humid when this gas
appliance is used. You must therefore ensure that the kitchen
is well ventilated: either keep the natural ventilation apertures
open, or install a ventilation system (extractor hood).
If using the appliance intensively for prolonged periods, you
may require additional ventilation (e.g. by opening a window)
or more effective ventilation (e.g. by increasing the hob’s
ventilation, if possible).
If the burner flames are accidentally blown out, switch off the
burner operating control and do not try to relight it for at least
one minute.
Suitable pans
Minimum pan
diameter
Maximum pan
diameter
With pan
support only
22 cm
Cookware must not
overhang the edge of the
hob
With wok ring
26 cm
Cookware must not
overhang the edge of the
hob
Wok pan A wok is a cooking vessel originating in China; it is a kind of
deep, round, lightweight pan with handles and a flat or
concave base.
Food can be prepared in various ways in a wok: it can be
stewed, stir fried, cooked on a low heat, pan-fried or steamed.
It could be said that woks serve as both as a saucepan and a
frying pan and, owing to their shape and size, they can be
used to cook quite large ingredients.
When cooking with a wok, heat is diffused more uniformly and
gently; the intense heat which accumulates means that food
takes less time to cook and also requires less oil, making it
one of the quickest and healthiest ways of cooking.
Always follow the manufacturer’s instructions when cooking
with a wok pan.

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Accessories The hob includes the following accessories. These are also
available from the Technical Assistance Service.
Additional wok pan
support
Cooking
recommendations
Only for use with pans which are more than 26 cm in diameter
(roasting dishes, earthenware pots, etc.) and with pans with a
concave base.
The manufacturer accepts no liability if these additional pan
supports are not used or are used incorrectly.
Very high High Medium Low
Boiling, steaming, griddling,
toasting, paellas, Asian food
(wok).
Reheating and keeping things
hot: cooked and pre-cooked
dishes.

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Precautions for use
The following advice is intended to help you save energy and
prevent pan damage:
Use pans which are the right size for each burner.
Do not use small pans on large burners. The flame should not
touch the sides of the pan.
Do not use damaged pans, which do not sit evenly on the
hob. Pans may tip over.
Only use pans with a thick, flat base.
Do not cook without using a lid and make sure the lid is
properly fitted to avoid wasting energy.
Always place the pan right over the burner, not to one side.
Otherwise it could tip over.
Place the pans on the pan supports, never directly on the
burner.
Pans should be placed on the hob carefully.
Do not strike the hob and do not place excessive weight on it.
Make sure that the pan support, burner cover, outer burner
spreader, intermediary ring, flame diffuser and burner cap are
correctly positioned before using the appliance.

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Cleaning and maintenance
Cleaning Once the appliance is cool, use a sponge to clean it with soap
and water.
After each use, clean the surface of the respective burner
parts once they have cooled down. If any bits are left
(overcooked food, drops of grease etc.), however few, they
will become stuck to the surface and more difficult to remove
later. The holes and grooves must be clean for the flame to
ignite properly.
The movement of some pans may leave metal residue on the
pan supports.
Clean the burner and pan supports using soapy water and
scrub with a non-wire brush.
If the pan supports are fitted with rubber rests, ensure that
these are also cleaned. The rests may come loose and the
pan support may scratch the hob.
Always dry the burner and pan supports completely. Water
droplets or damp patches on the hob at the start of cooking
may damage the enamel.
After cleaning and drying the burner, make sure the burner
covers are correctly placed on the burner flame diffuser.
Unsuitable products Never slide pans across the glass surface, as you may
scratch it. In addition, try not to drop heavy or sharp objects
on the glass. Never strike any part of the hob.
Do not use steam cleaners. This could damage the hob.
Never use abrasive products, steel scourers, sharp
implements, knives, etc. to remove bits of hardened food from
the hob.
If your hob is fitted with a glass or aluminium panel, never use
a knife, scraper or similar to clean the point where it joins the
metal.
Do not use knives, scrapers or similar implements to clean the
point where the glass meets the burner trims, the metal
frames or the glass/aluminium panels, if fitted.
Maintenance Always clean off any liquid as soon as it is spilt: you will save
yourself any unnecessary effort.
Grains of sand that may come from cleaning fruits and
vegetables will scratch the glass surface.
Melted sugar, or foods which contain a lot of sugar which may
have spilt, should be cleaned off the hotplate immediately,
using the glass scraper.

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Faults
Sometimes certain faults detected can be easily resolved.
Before calling the Technical Assistance Service, bear in mind
the following advice:
Fault Possible cause Solution
The general electrical
system is
malfunctioning.
Defective fuse.
The automatic safety switch
or circuit breaker has tripped.
Contact a registered gas
installer.
Check the main control panel to
see if the automatic safety switch
or circuit breaker has tripped.
The automatic on
function does not work. There may be food or cleaning products stuck
between the ignition sparker
and the burner.
The burner is wet.
The burner covers are not
correctly positioned.
The appliance is not earthed,
is not correctly connected or
the earth wire is faulty.
The space between the ignition
sparker and the burner must be
clean.
Dry the burner covers carefully.
Check that the covers are
correctly positioned.
Contact a registered gas installer.
The burner flame is not
uniform. The burner components are
not correctly positioned.
The grooves on diffuser are
dirty.
Ensure the components are
correctly positioned.
Clean the grooves on the
diffuser.
The flow of gas does
not appear normal or
no gas comes out.
The gas supply is blocked via
intermediary valves.
Open all intermediary valves.
The kitchen smells of
gas. A gas tap has been left on.
There may be a leak in the
tube connection.
There may be a leak of
gas.
Turn off the gas taps.
Contact a registered gas
installer.
Turn of the gas, do ventilation.
Contact a registered gas
installer. Please do not use the
appliance until it is checked and
no leakage is found.
The safety valve on the
burner is not working. The control knob was not held down for long enough.
The grooves on the diffuser
are dirty.
Once the burner is lit, hold the
control knob down a few
seconds longer.
Clean the grooves on the
diffuser.

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Technical Assistance Service
When contacting our Technical Assistance Service, please
provide the product number (E-Nr.) and production number
(FD) of the appliance. This information is given on the
specifications plate located on the lower section of the hob.
Warranty conditions The applicable warranty conditions are those set out by the
company’s representative office in the country of purchase.
Detailed information is available from retail outlets. Proof of
purchase must be presented to obtain the benefits of the
warranty.
We reserve the right to introduce changes.
Used appliances and packaging
If the
symbol is shown on the specifications plate, bear in
mind the following instructions.
Environmentally-
friendly waste
management
Unpack the appliance and dispose of the packaging by
environmentally-friendly means.
This appliance is labelled in accordance with European
Directive 2012/19/EU concerning used electrical and
electronic appliances (waste electrical and electronic
equipment - WEEE). The guideline determines the framework
for the return and recycling of used appliances as applicable
throughout the EU.

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BOSCH
Robert Bosch Hausgerate Gm bH
Car i - Wer y -S tr a Be 3 4
81739 Munchen
1032xxx _ 02.2018