LG HG6412A User manual

Installation and Operating Instructions
Built in Gas Cooktops
Model Numbers
HG6412A
HG7512A
HG9512A
Please note This cooktop must be installed by an authorised installer.
P/No. :MFL3029850

1
CONTENTS
OPERATING INSTRUCTIONS
SAFETY PRECAUTIONS PAGE 3
COOKTOP IDENTIFICATION PAGE
LIGHTING THE GAS BURNERS PAGE 5
USING THE GAS COOKTOP PAGE 6
COOKTOP INSTALLATION PAGE 7
CONVERSION TO DIFFERENT TYPES OF GAS PAGE 9
CLEANING PAGE 9
GAS CONSUMPTION AND INJECTOR SIZES PAGE 10
DIAGRAMS PAGE 11

2

3
SAFETY PRECAUTIONS
IMPORTANT! This booklet is a fundamental part of the appliance, it should be
retained. Read all instructions carefully before usin the appliance.
This appliance is to be installed by a qualified technician in accordance with the as
installation code AS5601, SAA wirin rules, as well as the requirements of all local
statutory and buildin authorities and re ulations. This appliance is for domestic use
only and has been desi ned for cookin and heatin food. Any other use is
considered improper.
The manufacturer is not responsible for bad installation, tamperin , unskilled use and
usa e other than that it is intended for.
• Check that the product has not been damaged during transport.
• Packing elements (plastic bags, expanded polystyrene, nylon etc) are potentially
dangerous and must be kept away from children.
• Packing is made up of recyclable material and is marked by the symbol.
• This appliance is only to be used by adults. Make sure the children do not touch the
controls or play with the appliance.
• Do not try to modify the appliance. In the case of faults, do not attempt repair but ask for
assistance from a LG Service Agent.
• The data plate with its technical data is in a visible position under the housing. There is
another data plate enclosed that should be attached to a handy surface for future
reference. The data plate under the housing must never be removed.
• The illustrations for using the appliance are in the final pages of this booklet.
• DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN
OPERATION
• WHERE THIS COOKTOP IS INSTALLED IN A MARINE CRAFT OR A CARAVAN IT
SHALL NOT BE USED AS A SPACE HEATER
• WARNING ACCESSIBLE PARTS BECOME HOT IN USE. TO AVOID BURNS AND
SCALDS CHILDREN SHOULD BE KEPT AWAY.
Safety hints and usage tips
• After use ensure that all controls are in the off position
• Never leave cooking food unattended during use as this can lead to a fire risk.
• Be aware of wearing loose garments while cooking as these may catch vessel handles or
catch fire.
• Always turn pan handles to the side or to the back of the cooktop where they can’t be
knocked or reached by children.

4
COOKTOP IDENTIFICATION
Warning
This appliance is designed to be built into a kitchen bench capable of withstanding the weight
of the appliance during its use.
• The kitchen bench must be resistant to temperatures of at least 100°C. Check with the
manufacturer of the bench material to be sure. No liability will be accepted for damage to
bench materials that do not comply
• See the relative paragraph and drawings for correct installation.
• Using a gas cooking appliance causes heat and humidity in the location where it is
installed. Make sure that the kitchen is adequately ventilated, install a range hood if
required. See fig. 11 & 12.
This booklet covers a number of models. You can see your model number on the data plate:
MODELS
60cm hob with front commands
Mod HG6412A (Fi . 1)
1. Semi-rapid front burner (SR)
2. Semi-rapid back burner (SR)
3. Auxiliary burner (A)
. Triple-crown burner (TC)
70cm hob with front commands
Mod HG7512A (Fi . 2)
1. Auxiliary burner (A)
2. Rapid burner (R)
3. Semi-rapid back burner (SR)
. Semi-rapid front burner (SR)
5. Triple-crown burner (TC)
90cm hob with front commands
Mod HG9512A (Fi . 3)
1. Dual burner (DUAL)
2. Semi-rapid back burner (SR)
3. Rapid burner (R)
. Semi-rapid front burner (SR)
5. Auxiliary burner (A)

5
LIGHTING THE GAS BURNERS
Gas burners
The flow of gas to the burners is regulated by the controls knobs. Depending on the model,
the graphic symbols are printed on the knobs or the control panel (Fig. 6). The indicator
symbols are:
Valve closed, no gas flow
Maximum capacity, maximum gas flow
Minimum capacity, minimum gas flow
Turnin On and Off
Each control knob is clearly marked with the burner that it controls.
Li htin with electronic i nition
These models are identified with the symbol near to the symbol (maximum flow).
To light one or more burners, press and turn the knob to maximum flow and hold it down until
the burner is lit; turn the knob until the desired flame is obtained.
Note:
If it is difficult to light the burner with the knob in the maximum position because of
local gas flow, we recommend repeating the operation with the knob turned to a lower
level.
Li htin without electronic i nition
To turn on burners without electric ignition, or when there is no electrical power in models with
ignition, place a flame near to the upper part of the burner, press and turn the knob anti-
clockwise so that it points to the symbol on the panel. To turn the burner off, turn the knob
clockwise until it points directly upwards.
Burners with safety valves
Some models have safety valves which automatically interrupts gas flow should the flame be
extinguished for any reason.
Turn the gas control knob to maximum and then press and hold it down for about to 5
seconds. Release the knob and adjust the flame by turning the knob until it reaches the
desired intensity.
Warning
Do not activate the electronic ignition for longer than 15 seconds.
If it still has not lit after this time, wait for 1 minute before repeating the operation.
Dual Control Wok Burners
Cooktops fitted with Dual control wok burners have the latest in gas cooking burner
technology. Dual control means that the burner can be used for a variety of cooking
applications. One control operates the gas flow to the centre burner for simmering and low
heat and the other control operates the outer ring for large vessels and woks. The burners
operate independently of each other and can operated separately or in tandem for maximum
output.

6
USING THE GAS COOKTOP
Pan supports (trivets)
The trivets were designed to make the cooktop easy and safe to use.
We recommend checking their exact position and stability on the cooktop before each use.
Furthermore, check that the supporting rubbers are integral and correctly positioned.
Small vessel support (Fi . 4 Optional)
Only use the auxiliary burner ring (the smallest)for vessels with a small diameter to prevent
them from tipping and to maximise efficiency.
WOK Burner stand (Fig. 5 optional – design may vary to image)
Only use the wok stand for WOKs (concave bases). In order to avoid serious burner
malfunction, we recommend using the wok stand at all times for Woks with curved bases but
do not use it for vessels with flat bottoms.
Choosin the burner
Choosing the most adapt burner depends on the vessels’ diameter and capacity (see table).
It is important that the pan’s diameter matches the burner power to maximise efficiency.
Pan diameter
Burner Minimum diameter Maximum diameter
Auxiliary 60 mm (with reduction) 1 0 mm
Semi-rapid 160 mm 200 mm
Rapid 200 mm 2 0 mm
Triple crown wok 2 0 mm 260 mm
Dual control 2 0 mm 260 mm

7
COOKTOP INSTALLATION INSTRUCTIONS
Installation on the kitchen bench
The cooktop can be installed on materials as long as they are heat-resistant (minimum
temperature 100°C). Clearances from combustable surfaces must be 120mm all around to
comply with AS5601 regulations.
The size of the hole to be cut into the kitchen bench and the minimum distance between the
back, side and overhead walls are shown in figures 7, 8, and 9.
Note that:
1. When the cooktop is installed over a vacant cavity (ie without oven below)a separate
panel must be installed beneath the underside of the cooktop base at a distance of at
least 10 mm.
2. When the cooktop is installed over an oven a divider panel at a minimum distance of
15mm is required, and following the oven supplier’s instructions, maintaining ventilation
as specified in fig. 13.
3. The electrical connection of the two appliances must be carried out separately.
Fixin the cooktop
The cooktop is to be fixed to the bench as follows:
1. Place the sealing gasket supplied along the outside edge of the hole cut into the bench
so that the ends of the strips are perfectly joined without overlapping.
2. Position the cooktop into the hole in the bench making sure it is centered.
3. Attach the cooktop to the bench with the supplied mounts as shown in fig. 10.
. When the sealing gasket is correctly installed, it will protect the cooktop from intrusion of
liquids.
Connection to the mains
The appliance must be connected to the mains checking that the voltage matches the value
shown on the data plate and that the cicuit can sustain the load indicated on the data plate.
Should the appliance be directly connected to the mains supply, an omni-polar switch, with a
minimum opening of 3mm between contacts, of the right size for the load and responding to the
relevant standards has to be installed between the appliance and the mains supply.
• Do not use reducers, adapters or deviators for mains connection as they could
overheat and burn.
• Earthing the appliance is essential. The manufacturer will not be held responsible
for the non-compliant of this requirement.
If the power supply cable is to be substituted, use a cable with the same characteristics as that
supplied, adapted to load and temperature (type T90°C ). It is also necessary that the end on
the appliance side has a Yellow-Green earth wire 20mm longer than the others.
Consult the table below for the power supply cable dimensions
Cooktop type Dimensions
nly with gas burners 3 X 0,50 mm2

8
GAS COOKTOP INSTALLATION
The instructions are for a qualified installer.
The appliance must be installed correctly, conforming to the laws in force.
Remove the electrical power supply before servicing the appliance.
Connectin the as
These technical instructions have been prepared for the use by Authorised persons.
The requirements of the local Gas and Electrical authorities must be adhered to, consult
AG601/AS5601 as appropriate.
• Before installation, make sure that the gas type (natural gas and LPG) and the
cooktop are compatible. To do this, check the data on the product plate on the
cooktop and on this booklet.
• Gas inlet fitting is 1/2” BSP (male) thread.
• The gas connection is identified in table figure 12.
• Fit regulator supplied for natural gas or supplied LPG test point (as applicable)
• It is recommended that an isolating valve and union be fitted, to enable simple
disconnection for servicing. These are to be in an accessible location.
• Check connections are gas tight with soapy water or other approved method
Flexible Hose Connection
Install with a hose assembly that complies with AS/NZ1869 (AGA Approved). 10mm ID class
Bor D and in accordance with AS5601.
This hose must not exceed 1.2m in length. Ensure that the hose does not contact the hot
surfaces of the cooktop or oven or any other appliance that may be installed underneath or
adjacent to the cooktop. The hose must not be subject to contact from drawers, abrasion or
kinking. All joints must be checked for leakage using soapy water.
Final Check
Operate the burners on high and low flames and check that each burner ignites properly and
has a stable flame. The following may be considered to be abnormal:
• If the burners have yellow tipping
• If the pots are sooting underneath
• If the burners fail to ignite properly
• If the burners fail to remain alight
When satisfied with the operation of the cooktop please explain to the user the correct method
of operation.