CDA HG7251 User manual

Customer Care Department • The Group Ltd. • Harby Road • Langar • Nottinghamshire • NG13 9HY
T : 01949 862 012 F : 01949 862 003 E : [e-mail] W : www.cda.eu www.cda.eu
HG7251,
HG7351 &
HG9351
Gas Hobs
Installation, Use and Maintenance

2
Important
Make sure that this instruction booklet is read thoroughly and
understood before attempting to install or operate this hob. The
instructions are provided in the interest of your safety.
The manufacturer cannot be held responsible for injuries or losses
caused by incorrect use or installation of this product. Please note we
reserve he right to invalidate the guarantee supplied with this produtc
following incorrect installationg or misue of the appliance.
•It is a legal requirement that all gas appliances are installed by
qualified personnel only in accordance with current legislation. It is
your responsibility to ensure compliance with the law.
•Repairs or servicing of this product must only be carried out by an
authorised service agent using approved parts.
•No attempt must be made to modify this appliance under any
circumstances.
•Cooking appliances can become very hot in use - Please keep
children and pets away from them.
•Do not allow children to operate or play with any part of the
appliance.
•Do not use unstable pans and ensure that the handle is positioned
away from the edge of the worktop.
•In the interest of safety and hygiene, ensure the hob is kept clean.
• This appliance is designed for domestic use only. Commercial use
will invalidate the warranty.
• Do not cover the hob or place combustible materials on or near the
surface even when the hob is not in use.
• Do not fill deep fat frying containers more than one third full and
NEVER leave unattended.

3
• Before cleaning the hob, switch o at the mains.
• When cooking is finished, switch o controls and allow to cool.
• These appliances are not intended for use by persons 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.
• If the power cable is damaged it must be replaced by an authorised
service agent or qualified person only.
• Do not immerse the appliance or power cable in water or any liquid.
• The gas regulator must comply with EN1 6129 or EN 12864 and local
code. Make sure of the outlet pressure before connecting the gas
regutor to the product.
• The flexible hose must comply with the approval standard and the
local code
Appliance information:
Please enter the details on the appliance rating plate below for
reference, to assist CDA Customer Care in the event of a fault with
your appliance and to register your appliance for guarantee purposes.
Appliance Model
Serial Number
EU Declarations of Conformity:
This appliance has been manufactured to the strictest standards and
complies with all applicable legislation, including Gas safety, Electrical
safety (LVD) and Electromagnetic interference compatibility (EMC).

4
Parts intended to come into contact with food conform to 1935/2004/
EC.
IMPORTANT INFORMATION FOR CORRECT DISPOSAL OF THE
PRODUCT IN ACCORDANCE WITH EU DIRECTIVE 2012/19/EC.
At the end of its working life, the product must be taken to a special
local authority waste collection centre or to a dealer providing
appliance recycling services.
Disposing of a household appliance separately avoids possible
negative consequences for the environment and health. It also
enables the constituent materials to be recovered, saving both energy
and resources. As a reminder of the need to dispose of household
appliances separately, the product is marked with a crossed-out
wheeled dustbin.
Please note:
•Gas hobs become hot and remain hot during and immediately after
use. Do not touch the pan stands, burners or hob spill tray until the
appliance has been allowed to cool.
•Keep children away from the appliance when in use.
•After use, please ensure that the gas taps are in the ‘O” position.
•Ensure that the appliance is correctly adjusted for the type of gas
available before installation.
•The use of a gas appliance produces heat and humidity in the room
in which it is installed. Ensure that the room is well ventilated, either
by the use of natural ventilation outlets (e.g. windows) or a ducted
extractor.

5
Using Your Hob
Fig. 1
Gas burners:
Gasflow to the burnersis controlled by the control knobs (5, 6, 7 and 8
on the diagrams on pages6 & 7). There are 3 positionsshown on the
control panel.Turning the control knob to the positions shown below
achieves the following:
Closed (OFF position)
Maximum position: Provides fast boiling function
Minimum position: Provides simmer function
The burners can be set to the desired position by turning the control
knobs through the adjustment range in an
anti-clockwise direction.
•This hob (Class 3) has been designed for use only as a cooking
appliance. Any other use (e.g. heating rooms) should be considered
incorrect and potentially dangerous.
•These instructions are valid only for the countries of destination, the
symbols of which appear the appliance.

6
HG7251 & HG7351
Fig. 2
HG9351
Fig. 3
3
3
3
3
2
1
4
4
5 6 7 8 9
1
2
5 6 7 8 9

7
Key to Fig 2
Gas burners:
1. Triple burner 3.8kW
2. Rapid burner 3.0kW
3. Semi-Rapid burner 1.75kW
4. Auxiliary burner 1.0kW
Control panel:
5. Front left burner control knob
6. Back left burner control knob
7. Centre burner control knob
8. Back right burner control knob
9. Front right burner control knob
Key to Fig 3
Gas burners:
1. Triple burner 3.8kW
2. Rapid burner 3.0kW
3. Semi-Rapid burner 1.75kW
4. Auxiliary burner 1.0kW
Control panel:
5. Centre left burner control knob
6. Back centre burner control knob
7. Front Centre burner control knob
8. Back right burner control knob
9. Front right burner control knob
These appliances are class 3

8
Igniting the Burners
The hob is fitted with a flame failure
device. Flame failure devices operate
burner in the event that the flame is
extinguished accidentally.
To ignite the burners, follow these
instructions:
1. Lightly press the control knob down and turn the knob anti-
clockwise to the maximum position. Firmly press and hold down
the control knob to begin the ignition process (a clicking sound
will be heard). Hold down the control knob for a few seconds after
ignition to allow the safety device to detect that the burner is lit.
2.Once the burner is lit, adjust the burner power to the required
position.
Please note:
•The ignition device should not be operated for more than 15
seconds.
•
attempting to reignite the burner.
•If the burner does not ignite, repeat the ignition process with the
burner at the minimum position.
Fig. 4

9
Fig. 5
Burner Size Minimum Pan Diameter (cm) Maximum Pan Diameter (cm)
Auxiliary 10 14
Semi-Rapid 16 18
Rapid 20 22
Triple 24 26
Wok - 36
Ecient Use of Your Hob
The hob is equipped with burners of dierent sizes, designed to
accommodate most shapes and sizes of pan. For best results,
only use pans with flat bottoms and choose an appropriate burner
depending on the size of the pan. The most ecient use of the hob is
shown below, where the pan and burner are correctly chosen.
Ensure that the pans do not overlap the
edge of the pan stand, or cover the
control panel.
The table below shows the sizes of pan that should be used with each
burner:

10
Correct Use of the Wok Pan Adaptor
The wok pan adaptor is a special stand that is designed to be fitted
over the triple ring burner to give support to round bottomed woks.
When using a wok, always place the wok pan adaptor in position over
the pan support on the triple ring burner as shown in Fig.6.
IMPORTANT:
• The wok pan adaptor (Fig. 6) must be placed over the pan support
on the triple ring burner.
• Do not use the wok pan adaptor for standard flat bottomed pans.
Fig.5 Fig.4
Fig. 6 Fig. 7

11
Care and Maintenance
As the hob has a stainless steel or enamel surface, you should use a
nonabrasive cleaner. Any abrasive cleaner (including Cif) will scratch
the surface and could erase the control panel markings. Stainless
steel can be eectively cleaned by simply using a dilute solution of
water and mild detergent and drying to a shine with a clean cloth.
Over time with use, the stainless steel surface may discolour; this is
normal and does not constitute a fault with this appliance. Proprietary
stainless steel cleaners are available.
IMPORTANT:
• Steam cleaners must not be used when cleaning this appliance.
• Ensure that all parts are correctly replaced after cleaning, before
attempting to use the hob.
• After removing the pan stands, ensure the rubber pads are in place
on the base of the pan stands before repositioning the pan stands
straight and level on the hob.
What to do if you smell gas:
1. Open doors and windows
2.Turn the gas supply o
3.Call TRANSCO on : 0800 111 999

12
Total rated gas input : 11.3kW
Mains electrical voltage: 230 – 240Vac, 50Hz
Total rated electrical consumption: 2W
If Your Hob is Not Working
1. Check that the mains supply has not been switched o.
2. Check that the fuse in the spur has not blown.
3. Ensure that the burner components are not excessively soiled as
this can lead to ignition problems.
Burner Size Nominal Rating
(kW)
Simmer Rating
(kW)
LPG Flow Rate (lh-1)
G30 G31
Auxiliary 1.0 0.6 72.8 71.5
Semi-Rapid 1.75 0.8 134.6 132.2
Rapid 3.0 1.2 218.8 214.8
Triple / Wok 3.8 2.6 277 272

13
Mains Electricity Connection
THIS APPLIANCE MUST BE CONNECTED TO THE MAINS SUPPLY
BY A COMPETENT PERSON, USING FIXED WIRING VIA A DOUBLE
POLE SWITCHED FUSE SPUR OUTLET AND PROTECTED BY A 3A
FUSE.
We recommend that the appliance is
connected by a qualified electrician, who is a
member of the N.I.C.E.I.C. and who will comply
with the I.E.T. and local regulations.
The wires in the mains lead of this appliance
are coloured in accordance with the following
code:
Green & Yellow = Earth, Blue = Neutral, Brown = Live.
As the colours of the wires in the mains lead for the appliance may
not correspond with the coloured markings identifying the terminals
connecting to the fuse spur, proceed as follows:
•The wire which is coloured green and yellow must be connected to
the terminal marked E (Earth) or coloured green.
•The wire which is coloured blue must be connected to the terminal
marked N (Neutral) or coloured black.
•The wire which is coloured brown must be connected to the
terminal marked L (Live), or coloured red.
Note: Use a 3A Fuse
Assembly and electrical connection should be carried out by
specialised personnel.
When installing this product we recommend you seek the help of
another individual.
DOUBLE POLE SWITCHED
FUSE SPUR OUTLET
USE A 3 AMP FUSE
Fig. 8

14
Gas Supply Requirements
IMPORTANT: THIS APPLIANCE SHOULD BE FITTED BY A GAS
SAFE REGISTERED FITTER OR OTHER SUITABLY QUALIFIED
PERSON.
• This installation must comply with the Gas Safety (installation and
use) Regulations 1984.
• This appliance is category II2H3+ and is designed for use in the
UK and Ireland. The installation must comply with the Gas Safety
(installation and use) Regulations 1984.
• The CDA Group Ltd is not legally able to provide any assistance
in the installation of gas appliances except to Gas Safe registered
installers. Any Gas Safe registered fitter requiring help must provide
their name, address and registration number. Information supplied
will be validated before help is provided.
• In the event that this appliance is not installed in accordance with
the above requirements, the appliance may be disconnected
from the mains gas supply until any faults are rectified; this is a legal
requirement.
• This appliance should be installed using 15mm copper pipe
connected via an isolation valve in an adjacent unit. The isolation
valve needs to be accessible in an emergency or for service
purposes.
• This appliance must not be connected to a combustion gas recovery
scavenging system
• The connection to the gas supply must comply with all current
regulations in force.
• We are not legally able to oer advice on the installation of gas
appliances to non Gas Safe registered personnel.

15
Ventilation
All rooms require a window or equivalent (e.g. a door) which can be
opened. Some rooms require a permanent vent in addition to a win-
dow (see below).
This unit must not be used in a room which is less than 5m3. The fol-
lowing table details the requirements based on the kitchen volume
(L x W x H) in m3.
The above requirements also allow use of a gas oven and grill but if
there are any other fuel burning appliances in the same room, consult
the relevant British Standard (BS5440) or GAS SAFE document.
Room Volume (m3)
5
6 to 10
6 to 11
11 or more
Air Vent Required (cm2)
100
50
No permanent vent required if a door opens to the outside
None required

16
Natural Gas to LPG Conversion
This hob can be converted from natural
gas to propane operation at a nominal
inlet pressure of 37mbar, or butane
operation at a nominal inlet pressure of
28/30mbar. This conversion must only
be carried out by a competent person
(i.e. a Gas Safe registered fitter).
Instructions to fit replacement
injectors:
1. Disconnect the appliance from the
gas and electrical supplies.
2. Remove burner components and pan supports.
3. Remove the injectors and replace with the corresponding injector
as shown in the table on page 17.
Setting up minimum flow rates:
1. Remove the control knobs.
2.Turn on the LP gas supply, light the burners and turn the controls to
the minimum position, as indicated by the small flame.
3.Insert a 2.5mm screwdriver into the hole at the top of the tap and
turn the adjustment screw fully clockwise as shown in Fig.9.
4.Turn the controls to maximum position then quickly to the minimum
position - make sure the flame does not extinguish.
5. Replace the knobs.
Required:
• 7mm AF nut spinner
• Replacement injectors
• LPG identity plate
Fig. 9

17
LPG to Natural Gas
Conversion
This hob can be converted from
propane operation at a nominal
inlet pressure of 37mbar or butane
operation at a nominal inlet pressure
of 28/30mbar to natural gas at 20mbar.
This conversion must only be carried
out by a competent person (i.e. a Gas
Safe registered fitter).
Required:
• 7mm AF nut spinner
• Replacement injectors
• NG identity plate
Burner Size LPG Injector Natural Gas Injector
Auxiliary 49 72
Semi-Rapid 67 97
Rapid 86 118
Triple / Wok 100 135

18
Fitting the Hob
Unpacking the hob:
Take care not to lose or mishandle any parts.
Fitting position of the hob:
This appliance must be installed in accordance with the dimensions in
Fig. 11 on page 21 of this manual and a minimum of 150mm away from
any adjacent vertical surfaces, e.g. a tall cupboard end panel. This
may be reduced to 100mm if the adjacent surface is resistant to fire
(tiles or steel, for example). These dimensions are shown in Fig. 11.
If fitting a cooker hood above the hob:
If a cooker hood is to be installed above the hob, the height of
the hood above the hob must be at least 700mm (750mm is
recommended) (Fig. 12). If the instructions supplied with the hood
dictate that the hood must be installed at a height greater than
750mm, then that height is the minimum required.
Wall furniture requirements:
The minimum height of any cabinet immediately above the hob is
900mm. The minimum height of any adjacent units (including light
pelmets) is 400mm, unless they are manufactured from a material
resistant to fire (steel, for example)
Notes:
•Do not position this appliance above a refrigeration unit. The heat
generated may cause the refrigeration unit to fail.

19
Fig. 10
15mm
Ventilation slot > 30mm
•This appliance is designed to be installed into cabinet unitscapable of
withstanding temperatures 65°C above ambient or greater (typically
80-90°C).
• The rear wall or splashback the hob is to be fitted in front of must be
made offlame resitant material
•If there is nooventobe builtin below the hob it isrecommended
that, an isolation shelf should be fitted to protect the user from high
temperatures. If the hob is to be installed above a working drawer,
thena partition should be fitted toprotect the contents and user from
the heat generated during use. This should be fitted at least 15mm
below the hob. This panel should have aventilation space at the rear
of greater than 30mm as shown in Fig. 10.
•Never place perishable foods in the cupboard below the appliance.

20
How to Install the Hob
1. Make the required hole in the worktop. Note that before doing this,
check the instructions supplied with any cooker hood to ensure that
you will have the required clearance. The cut-out (Fig. 11) shows a
minimum 50mm gap from the wall to the cut-out edge.
2. Position the hobseal, as shown in the diagram below (Fig. 13),
ensuring that the ends meet without overlapping. Do not use silicone
type sealant.
NOTE: The seal is supplied already fitted to the hob on some
models, for your convenience.
3. Secure the hob to the worktop using the fixing brackets and screws
supplied, as shown in the following diagram (Fig. 14). Remove any
excess seal after tightening the brackets.
Installation Dimensions (mm) HG7251 &
HG7351
HG9351
Overall width 680 860
Overall depth 500 500
Worktop cutout width 557 832
Worktop cutout depth 477 477