Siemens EC645HB90A User manual

Siemens - Electrogeräte GmbH
81739 München
Carl-Wery-Straß e 34
Cod. 9000532685 A
EC645HB90A
EC745RT90A
www.siemens-home.com
This cooktop is for use with Natural Gas and Universal LPG

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Content
Safety considerations . . . . . . . . . . . . . . . . 5
For your safety . . . . . . . . . . . . . . . . . . . . . . . 5
What to do if you smell gas . . . . . . . . . . . . . . 5
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . 7
Statutory requirements . . . . . . . . . . . . . . . . . . 7
Preparing to install . . . . . . . . . . . . . . . . . . . . . . . 7
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation of cooktop into the kitchen bench . . 9
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Conversion from Nat. Gas to Universal LPG . . 12
To change injectors . . . . . . . . . . . . . . . . . . . . 12
Changing the nozzles of the burners on the
cooktop . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Adjustment of the taps . . . . . . . . . . . . . . . . . 13
Operating instructions. . . . . . . . . . . . . . . . 15
Burner locations . . . . . . . . . . . . . . . . . . . . . . . . 15
The gas burners. Operation . . . . . . . . . . . . . . . 15
Switching on automatically . . . . . . . . . . . . . . . 16
Safety system . . . . . . . . . . . . . . . . . . . . . . . . . 16
Switching off a burner . . . . . . . . . . . . . . . . . . . 16
Power levels . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Suitable pans . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Additional wok pan support . . . . . . . . . . . . . . 18
Additional coffee maker support. . . . . . . . . . . 18
Cooking recommendation . . . . . . . . . . . . . . . . 19
Timer operation. . . . . . . . . . . . . . . . . . . . . . . 19
Countdown timer. . . . . . . . . . . . . . . . . . . . . . . 20
Programming . . . . . . . . . . . . . . . . . . . . . . . . . 20
Other functions . . . . . . . . . . . . . . . . . . . . . . . . 21
The digital display. . . . . . . . . . . . . . . . . . . . . 22
Messages on the digital display . . . . . . . . . . . 21
Precautions for use. . . . . . . . . . . . . . . . . . . . . . 23
Cleaning and maintenance . . . . . . . . . . . . . . 24
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Unsuitable products . . . . . . . . . . . . . . . . . . 24
Maintenance . . . . . . . . . . . . . . . . . . . . . . . 24
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . 26

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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 considerations
For your safety If the information in this manual is not followed exactly, a
fire or explosion may result causing property damage,
personal injury or death.
Do not store articles on or against this appliance.
Do not store flammable material near this appliance.
Do not spray aerosols in the vicinity of this appliance
while it is in operation.
What to do if you
smell gas
Do not try to light the appliance.
Do not touch any electrical switch; do not use any phone
in your building.
Inmediately call your gas supplier from a neighbour’s
phone. Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by an
authorised person.
Warnings DO NOT MODIFY THIS APPLIANCE.
Do not allow the flame to extend beyond the edge of the
cooking utensil. This instruction is based on safety
considerations.
Do not forget that the unit becomes hot when in use.
Common sense is important. Just because the flame is
out, does not mean parts cannot still be hot.
This appliance shall not be used for space heating. This
instruction is based on safety considerations.
Be sure to disconnect the electrical supply before
disassembly of the appliance.
Keep the appliance area clear and free from combustible
materials, gasoline and other flammable vapours and
liquids.
This appliance must be installed in a position with the
proper level of ventilation. Do not obstruct the flow of
combustion and ventilation air.
Cabinets installed above the gas cooktop must have a
minimum clearance of 650 mm (24”).
The gas pressure regulator supplied with the appliance
must be installed in line with the gas pipe. (N.G. only).
For pressure testing in excess of 3.5 kPa (1/2 psig) the
appliance and its individual shutoff valve must be
disconnected from the gas supply piping system.

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Important. When using a very large pot, leave a gap of at
least 50 mm (2”) to avoid damaging any parts in bench
top wood, plastic or other non-heat resistant materials.
Never leave oil or hot fat unattended.
The surfaces on heating and cooking appliances get hot
when in use. Be careful. Keep children away from the
appliance.
Only use your appliance for the preparation of food and
never for room-heating purposes.
This appliance leaves the factory set for the gas supply
indicated on the data label. Call the Service Centre if it
needs to be altered.
Do not tamper inside the appliance. If necessary, call
your local Service Centre.
Overheated fat or oil can easily catch fire. Never leave the
appliance unattended when cooking food with fat or oil,
e.g. chips.
Never pour water on burning fat or oil. DANGER OF
BURNS! Cover the receptacle to smother the flames and
turn the cooktop off.
In the event of a fault, cut the gas and electricity supplies
to the appliance. Call our Service Centre to repair the
fault.
Do not use unstable or uneven-based receptacles on
cooking plates or burners. They may accidentally tip over.
If a gas supply knob/valve jams, do not force it. Call your
official Service Centre immediately for them to repair or
replace it.
The illustrations used in this booklet are only intended as
a guide.
Grids become very hot during use. When operating the
appliance control knobs, take care not to make contact
with the grids.
Do not use this appliance neither in marine craft nor in
caravans.
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.
Make sure you keep these instructions for use and
assembly in a safe place, so that you can hand them on
with the appliance if it ever changes owner.
Note: To avoid jeopardising the electrical safety of the
appliance, it is forbidden to use high-pressure or steam
jet cleaning devices.
SHOULD THE RELEVANT CONDITIONS NOT BE
PROPERLY SATISFIED, THE INSTALLER, AND NOT THE
MANUFACTURER, SHALL HELD LIABLE.

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Installation
Statutory
requirements
This installation must conform with the following:
Ø Manufacturer’s Installation instructions
Ø Local Gas Fitting Regulations
Ø Municipal Building Codes,
Ø Refer to AS/NZS 5601.1 for Gas Installations.
Ø S.A.A. Wiring Code
Ø Local Electrical Regulations
Ø Any other statutory regulations
Preparing to install Refer to AS/NZS 5601.1 for piping size details. These
built-in cooktops are intended to be inserted in a
benchtop cutout.
Only an officially authorised technician should connect
the appliance.
Before you begin, turn off the gas and electricity supply.
Installation dimensions are shown in Fig.1/1a.
Fig. 1

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Before connecting the unit, check whether the local
connection conditions (type of gas) are compatible with
the unit’s setting. Observe any special conditions
imposed by local suppliers (utilities). The specifications
of this cooktop are stated on the data label located on the
bottom of the cooktop base.
A duplicate data label is supplied for adhesion to an
accessible location near the hotplate if the data label on
the base of the hotplate cannot be accessed when the
hotplate is installed.
Clearances A range hood fitted above the top must be installed
according to the installation instructions for the range
hood. A minimum distance of 650 mm is required for a
range hood and 750 mm for an exhaust fan.
Any adjoining wall surface situated within 200 mm from
the edge of any hob burner must be a suitable non-
combustible material for a height of 150 mm for the
entire length of the hob. Any combustible construction
above the hotplate must be at least 650 mm above the
top of the burner and no construction shall be within
450 mm above the top of the burner.
A minimum depth of 50 mm from the top of the worktop
surface must be provided for the appliance.
Fig. 1a

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If the base of the hotplate can be touched, a protecting
shield must be fitted. This shield must be at least 10 mm
from the lowest part of the hotplate and must be capable
of withstanding the appliance temperatures. Minimum
thickness of benchtop is 30 mm. See Fig. 2.
If an oven is positioned below the cooktop the barrier
does not need to be fitted, but a space of 35 mm must
be maintained between the underside of the cooktop and
the top of the oven.
Installation of cooktop
into the kitchen bench
Installation procedure:
Side clearances: If the distance measured from the
periphery of the nearest burner to any vertical surface is
less than 200 mm, the surface shall be protected in
accordance with clauses 6.10.1.2 of AS/NZS 5601.1
1. For cutout dimensions and clearances refer Fig.1.
2. The clips and the adhesive seal (underside of the
cooktop) are already fitted (depending on the model), do
not under any circumstances remove them. The seal
ensures that the entire work surface will be watertight,
and prevents water seepage. In order to fit the appliance
into the kitchen unit, first place the cooktop in the correct
position then loosen each of the clips so that they all turn
freely (it is not necessary to completely undo them).
Insert and centre the cooktop.
Press the sides of the cooktop until it is supported around
its entire perimeter.
Turn the clips and tighten them fully. Fig. 3.
Fig. 2
Fig. 3.

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Connection
Electrical An electrical 10 amp socket needs to be within 1 m of the
hotplate to allow electrical connection. The socket must
remain accessible after installation of the appliance.
Important note:
This appliance is connected to the mains (240 VAC) by
means of the connecting lead which must be fixed to the
kitchen unit to prevent it f r o m c o min g i n t o contact with hot
parts of the cooktop (or an oven installed underneath)
and remain accessible after installation of the cooktop.
When making this connection make sure that the lead
cannot come into contact with hot parts of the cooktop.
Important: This appliance must be earthed. When
connecting the cooktop ensure that the earth wire is
connected first and that all wires are connected to the
correct terminals. Fig. 4.
Gas
During the planning stage, consider the position of supply
connections.
The cooktop must be connected to the gas supply with
upstream connection of an isolation valve in accordance
with the respectively valid regulations. We recommend
that the isolation valve be fitted prior to the cooktop to
enable isolation of cooktop from gas supply. The valve
must be easily accessible at all times.
To find out the factory set gas type, see bottom of
cooktop next to gas connection.
Remove plastic cap from gas supply line prior to
installation.
Fit regulator (N.G.) or a test point (Universal LPG) directly
to the R 1/2’’ connection as per Fig. 5. and Fig. 6.
Direction of gas flow is indicated on the rear of the
regulator.
For position of the inlet connection refer Fig.1.
Use pipe compound or thread sealant, properly theaded
pipes and careful assembly procedure so that there is no
cross threading, etc., which might cause damage or
leakage.
Make sure that all connections peformed are free of
leakage.
The manufacturer does not accept any liability for
leakage on connections performed by the installer or if
the L-tube is moved or twisted.
Fig. 4

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There are two ways to carry out the connection to the
main gas line:
A. The hotplate can be connected with rigid pipe as
specified in AS/NZS 5601.1
B. Flexible Hose: If installing with a hose assembly, install
with a hose assembly that complies with AS/NZS 1869
(AGA Approved), 10 mm ID, class Bor D, no more than
1,2 m long and in accordance with AS/NZS 5601.1.
Ensure that the hose does not contact the hot surfaces of
the hotplate, oven, dishwasher or any other appliance
that may be installed underneath or next to the hotplate.
The hose should not be subjected to abrasion, kinking or
permanent deformation and should be able to be
inspected along its entire length with the cooktop in the
installed position. Unions compatible with the hose
fittings must be used and all connections tested for gas
leaks.
The supply connection point shall be accessible with the
appliance installed.
WARNING: Ensure that the hose assembly is restrained
from accidental contact with the flue outlet of an
underbench oven.
Before Leaving- Check all connections for gas leaks with
soap and water. DO NOT use a naked flame for detecting
leaks. Ignite all burners both individually and concurrently
to ensure correct operation of gas valves, burners and
ignition. Turn gas taps to low flame position and observe
stability of the flame for each burner individually and all
together. Adhere the duplicate data plate to an
accessible location near the hotplate. When satisfied with
the hotplate, please instruct the user on the correct
method of operation. In case the appliance fails to
operate correctly after all checks have been carried out,
refer to the authorised service provider in your area.
It should be expressly noted that we cannot accept any
liability for direct or indirect damage caused by wrong
connection, leakage or improper installation. When being
repaired, the appliance must always be disconnected
from the mains supply; if required, notify our customer
service.
Fig. 5 Fig. 6