1
Operating instructions
PRA326B91X
to be used with Town Gas
EN
2
Table of contents
Sa
fety precautions .................................................... 4
Your new appliance .................................................. 7
The gas burner ......................................................... 8
Switching on manually .......................................................... 8
Switching on automatically ................................................... 8
Safety system ....................................................................... 9
Switching off the burner ........................................................ 9
Po
wer levels ......................................................................... 9
Wa
rnings .............................................................................. 9
Su
itable pans ...................................................................... 10
Wo
k pan .......................................................................... 10
Ac
cessories ........................................................................ 11
Ad
ditional wok pan support ............................................. 11
Co
oking recommendations ................................................. 11
Precautions for use ................................................. 12
Cl
eaning and maintenance ..................................... 13
Cleaning ............................................................................. 13
Unsuitable products ............................................................ 13
Ma
intenance ....................................................................... 13
Faults ...................................................................... 14
Te
chnical Assistance Service ................................. 15
Warranty conditions ............................................................ 15
Used appliances and packaging ............................. 15
Environmentally-friendly waste management .................... 15
3
Dear customer,
Congratulations on your choice and thank you for purchasing one of our
ap
pliances. 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
ap
pliance. 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
wh
ich 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.
Attention!
According to the Gas Safety Regulations of Singapore, 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.
4
Safety precautions
Re
ad these instructions carefully. Reading these instructions
will enable you to use your appliance safely and effectively.
When installing built-in gas hob on top of stove cabinet,
pl
ease 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
pr
essurized containers inside the stove cabinet.
The panel of this built-in hob is made of tempered glass
wh
ich is safer than normal glass for this application.
However, the following safety precautions for using
built-in 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
no
ise propagates from the gas appliance and contact an
authorized person 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.
Please do not use additional fitting, such as aluminium
cover.
All operations relating to installation and regulation must be
ca
rried 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
in
stalled 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
co
mmercial 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-
fu
nctioning ventilation, in accordance with the regulations.
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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
ou
r Technical Assistance Service.
These operating and installation instructions should be
ret
ained, 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
mu
st 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
le
ave oil or fats to heat up unattended. If oil or fats do catch
fire, never use water to put the fire 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
an
d electricity supply. For repairs, call our Technical
Assistance Service.
If one of the controls will not turn, do not force it. Call the
Te
chnical 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
ch
ildren) 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.
6
The graphics in this instruction manual are given as a guide
only.
The manufacturer is exempt from all responsibility if the
req
uirements of this manual are not complied with.
7
Your new appliance
Pro
duct description:
Double-flame burner town gas hob with flame sensor safety
device.
Heat input: 5.5 kW (with Singapore town gas at 10 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:
10 mbar (Singapore town gas)
This individual appliance can be combined and/or with
conventional hobs of the same
make, using the joint accessory. See the catalogue for details.
Pan support
Dual double-flame
burner
Control knob
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The gas burner
Operation
It
is essential to ensure that all the burner parts an
d the pan
supports are correctly installed for the appliance to work
correctly. Fig. 1 + 2.
Switching on
manually
1. Press the burner control and turn it anticlockwise to the
ig
nition position .
2. Use any type of lighter or flame (cigarette lighter, matches,
et
c.) and bring it close to the burner.
Switching on
au
tomatically
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 and
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
ig
nite, switch off the burner and open a nearby window or
door. Wait at least one minute before trying to switch the
burner back on.
Fig. 1
Fig. 2
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Safety system
Your hob has a safety system (thermocouple) that prevents
th
e 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
Tu
rn the control clockwise to the 0 setting.
Power levels
The progressive controls can be used to control the power
ne
eded, 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
op
erating.
When it is first used, it is normal for the burner to give off
od
ours; 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)
wi
ll 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
pre
sence of dust in the atmosphere, spilt liquids, etc.
The kitchen will become hot and humid when this gas
ap
pliance 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
ma
y 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
bu
rner operating control and do not try to relight it for at least
one minute.
Suitable pans
Minimum pan diameter
22 cm
Wo
k 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
av
ailable from the Technical Assistance Service.
Additional wok pan
sup
port
Only for use with pans which are more than 26 cm in diameter
(roa
sting 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.
Cooking
recommendations
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 energ
y 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
to
uch 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 supports and burner covers 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
an
d water.
After each use, clean the surface of the respective burner
pa
rts 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
sc
rub 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
dro
plets 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
co
vers 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
im
plements, 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
po
int 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
ve
getables 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.
Be
fore 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.
Check the fuse in the main fuse
box and change it if it is
damaged.
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 an electrical 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.
If the gas is supplied from a
gas cylinder, check that this
is not empty.
Open all intermediary valves.
Change the gas cylinder.
The kitchen smells of
gas.
A gas tap has been left on.
There may be a leak in the
gas cylinder coupling.
Turn off the gas taps.
Check that the coupling is
sound.
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.
15
Technical Assistance Service
Wh
en 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
co
mpany’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 p symbol is shown on the specifications plate, bear in
m
ind the following instructions.
Environmentally-
friendly waste
management
Unpack the appliance and dispose of the packaging by
en
vironmentally-friendly means.
This appliance complies with European Directive
20
02/96/CE on electrical and electronic equipment identified
as WEEE (waste electrical and electronic equipment).
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Robert Bosch Hausgeräte GmbH
Carl-Wery-Straße 34, 81739 München, GERMANY
1035982 – 02.2015
www.bosch-home.com
