Bosch PPQ718B91E - Manual (Page 6)

Preparation of the kitchen unit (fig. 1-2)
Make an appropriate size cut in the worktop surface, depending on
the installation method, standard (a) or flush (b). For flush
installation:
■ All cuts in the worktop surface should be done by a specialised
shop.
■ The cuts should be clean and precise, as the cut edge is on the
surface. The stability of the furniture should also be ensured
after cutting work.
■ Use only specially designed work surfaces, resistant to high-
temperature and water (e.g. natural stone or tiled).
■ Surrounding furniture must be resistant to temperatures up to
90 °C.
If the hob is electric or mixed (gas and electricity) and there is no
oven below, place a non-flammable separator (e.g. metal or
plywood) 10 mm from the bottom of the hob. This will prevent
access to the base of the hob.lf the hob is gas, it is
recommendable to place the separator at the same distance.
On wood work surfaces, varnish the cutting surfaces with a special
glue. This protects them from moisture which could collect under
the work surface.
Installation of appliance
A) Standard installation (fig. 3a)
Depending on the model, the adhesive seal may be factory-fitted.
If this is the case, it should not be removed under any
circumstances, since the adhesive seal prevents leaks. If the seal
has not been factory-fitted, apply it to the underside of the hob.
Fitting the appliance onto the kitchen unit:
1. Remove the clips from the accessory bag and screw them into
the position indicated so that they can turn freely.
2. Insert and centre the hob.
Press the sides of the hob until it is supported around its entire
perimeter.
3. Turn the clips and tighten them fully.
The position of the clips depends on how thick the work surface is.
B) Flush installation (fig. 3b)
1 . Complete a normal installation of the appliance making sure that
it is surrounded by a uniform slot. The hob surface should be
slightly below the work surface.
For tile worktops, if necessary, raise the bearing surfaces with
strips resistant to water and temperatures.
2. Check the operation and position of appliance.
3. Fill the gap between the worktop and hob with conventional
silicone adhesive appropriate in the colour you desire.
Note: If unsuitable silicone adhesive is used on natural stone
surfaces then this can produce colours that can not be removed.
Our Technical Assistance Service can provide you with the most
suitable glue (code 310818). Please note the manufacturers
instructions for use.
4. Smooth the silicone adhesive with a scraper or wet finger
moistened with soap and water before it forms a layer.
5. Allow the silicone adhesive to dry before using the appliance.
Removal of hob
Turn off the appliance's electricity and gas supply.
Unscrew the clips and proceed in the reverse order to installation.
Gas connection (fig. 4)
The end of the inlet connection point of the gas hob has a 1/2”
(20.955 mm) thread that allows for:
■ fixed connection.
■ connection using a flexible metal pipe (L min. 1 m - max. 3 m).
The watertight seal (034308) supplied must be inserted between
the manifold outlet and the gas supply.
You must prevent the pipe from coming into contact with moving
parts of the kitchen unit (for example, a drawer) and prevent
access to any spaces which might become obstructed.
Do not move the L-tube from the factory-fitted position,
regardless of the connection type.
If you need to make a cylindrical connection, replace the factory-
fitted L-tube with the one in the accessory bag. Fig. 4a.
Please remember to insert the seal.
: Danger of leaks!
If any connection is handled, check the seal.
The manufacturer is not liable for any connection leaking, after
being handled.
Electric connection (fig. 5)
Check that the voltage and power of the appliance are compatible
with the electrical installation.
The hobs are supplied with a power cable with or without a wall
socket plug.
Appliances with plugs must only be connected to sockets that
have earth wires correctly installed.
Provide an omnipolar cut-off switch with a minimum contact
opening of 3 mm (except for plug connections, if the user has
access to it).
This appliance is type “Y”: the supply cable can only be changed
by the Technical Assistance Service and not the user. The cable
type and minimum cross-section must be respected.
Changing the gas type
If the country's regulations allow, this appliance can be adapted to
other types of gas (see specifications plate). The components
required for this are in the transformation kit supplied (depending
on the model) or are available from ourTechnical Assistance
Service. The following steps should be taken:
A) Changing the nozzles (fig. 6):
1. Remove the pan supports, burner caps and diffusers.
2. Change the nozzles using the spanner code 340847 (code
340808 for double-flame burners or triple-flame burners)
provided by ourTechnical Assistance Service, see table II,
taking special care to ensure that the nozzle does not fall when it
is removed from or fitted to the burner.
Ensure that it is completely tightened in order to guarantee the
seal.
Primary air adjustment is not necessary with these burners.
3. Position the diffusers and burner caps on the corresponding
rings. The pan supports must also be correctly positioned in their
fasteners.
B) Adjusting the taps
1 . Set the control knobs to minimum.
2. Remove the control knobs from the taps. Fig. 7.
It has a flexible rubber valve reinforcing ring. Simply press on this
seal with the tip of a screwdriver to allow access to the tap
adjusting screw. Never remove the valve reinforcing ring.
3. Adjust the minimum ring setting by turning the by-pass screw
using a flat head screwdriver.
Depending on the gas to which your appliance is going to be
adapted, see table III, carry out the corresponding action:
A: firmly tighten the by-pass screws.
B: loosen the by-pass screws until the gas flow from the burners
is correct: when adjusting the control knob between maximum
and minimum, the burner does not go out, nor is there a flame
backdraught created.
C: the by-pass screws need to be changed by an authorised
engineer.
D: do not touch the by-pass screws.
If the by-pass screw cannot be accessed, disassemble the grease
drip tray, which is fitted to the hob with a series of screws. The
following steps must be taken to remove it:
1. Remove all pan supports, burner caps, diffusers and control
knobs.
2. Remove the screws from the burners.
3. To reinstall the appliance, proceed in the reverse orderto
disassembly.
All valve reinforcing rings must be in position to ensure
watertightness. These devices are essential for the correct
operation of the appliance as they prevent liquids and dirt from
entering the appliance.
Never remove the tap spindle (Fig. 8). In the event of a
malfunction, change the whole tap.
Caution!
After finishing, the sticker indicating the new type of gas must be
placed close to the specifications plate.
Indicaciones de seguridad
Lea las instrucciones del aparato antes de proceder a su
instalación y uso.
Los gráficos representados en estas instrucciones de montaje son
orientativos.
El fabricante queda exento de toda responsabilidad si no se
cumplen las disposiciones de este manual.
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