LG HB6422A User manual

Built-In Gas Cooktops
Installation and Operating Instructions
HB6422A
To avoid the risk of accidents or damage to the Gas Cooktops,
it is essential to read these operating instructions
before it is installed or used for the first time.
And please keep this manual for later reference.
P/No.: MFL62060303
http://au.lge.com (Australia)
http://nz.lge.com (New Zealand)

Contents
2
Introduction ................................................................................. 3
1. Instructions for safe and proper use ....................................... 3
Instructions for the installer ...................................................... 5
2. Positioning of the hob ............................................................. 5
3. Electrical connection .............................................................. 9
4. Gas connection .................................................................... 10
5. Adaptation to different types of gas ...................................... 12
6. Final operations .................................................................... 15
Instructions for the user .......................................................... 17
7. Using the hob ....................................................................... 17
8. Cleaning and maintenance .................................................. 19
These instructions are valid only for end user countries whose
identification symbols appear on the cover of this manual.
INSTRUCTIONS FOR THE INSTALLER: these are for the
authorised person who must carry out a suitable check of the gas
system, install the appliance, set it functioning and carry out an
inspection test.
INSTRUCTIONS FOR THE USER: these contain user advice,
description of the commands and the correct procedures for
cleaning and maintenance of the appliance.

3
Introduction
1. Instructions for safe and proper use
This manual is an integral part of the appliance and therefore must
be kept in its entirety and in an accessible place for the whole
working life of the cooking hob. We advise reading this manual and
all the instructions therein before using the cooking hob. Also keep
the series of nozzles supplied. Installation
must be carried out by qualified personnel in accordance with the
regulations in force. This appliance is intended for domestic uses
and conforms to current regulations in force. The appliance has
been built to carry out the following functions: Cooking and
heating-up of food. All other uses are considered improper.
The manufacturer declines all responsibility for improper use.
Do not leave the packing in the home environment. Separate the
various waste materials and take them to the nearest special
garbage collection centre.
It is obligatory for the electrical system to be grounded according to
the methods required by safety rules.
The plug to be connected to the power cable and the socket must
be the same type and must conform to current regulations.
Never unplug by pulling on the cable.
Immediately after installation carry out a brief inspection test of
the cooking hob, following the instructions below. Should the
appliance not function, disconnect it from the supply and call the
nearest technical assistance centre.
Never attempt to repair the appliance.
Always check that the control knobs are in the position
“ZERO”(OFF) when you finish using the hob.

Introduction
The identification plate, with technical data, serial number and
marking is clearly visible under the casing.
The plate on the casing must not be removed.
Before connecting the device, make sure that it has been regulated for
the type of gas that will feed it, checking the label under the casing.
Do not put pans without perfectly smooth and flat bottoms on the
cooking hob grids.
Do not use recipients or griddle plates that extend beyond the
external perimeter of the hob.
The hob is to be used by adults only. Do not let unsupervised
children play with the hob.
This appliance is designed for cooking food and it shall not be used
as a space heater.
Do not spray aerosols in the vicinity of this appliance while it is in
operation.
WHERE THIS APPLIANCE IS INSTALLED IN MARINE
CRAFT OR IN CARAVANS, IT SHALL NOT BE USED AS A
SPACE HEATER.
The manufacturer declines all responsibility for damage to
persons or things caused by non-observance of the above
prescriptions or by interference with any part of the appliance or
by the use of non-original spares.
DO NOT USE OR STORE FLAMMABLE MATERIALS IN THE
APPLIANCE STORAGE DRAWER OR NEAR THIS APPLIANCE.
DO NOT MODIFY THIS APPLIANCE
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5
Instructions for the installer
2. Positioning of hob
This appliance shall be installed only by authorized persons in
accordance with AS5601 - Gas Installations, any statutory
regulations, local gas regulations, municipal building codes,
electrical wiring regulations, and the manufacturer's installation
instructions.
Clearance around the appliance must comply with the requirements
of AS5601.
The following operation requires building and/or carpentry work so
must be carried out by a competent tradesman. Installation can be
carried out on various materials such as masonry, metal, solid wood
or plastic laminated wood as long as they are heat resistant
(T 90°C). Never use silicone or other insulating products when
installing the appliance; use only the rubber gasket provided.
2.1 Attachment to support structure
Create an opening with the dimensions shown
in the figure in the top surface of the counter,
keeping a minimum distance of 50 mm from
the rear border. This appliance can therefore
be mounted against walls higher than the
work surface on condition that a certain
distance “X” be kept between the appliance and the wall as shown
in the figure so as to avoid damage from overheating. Make sure
there is a minimum of 750 mm between the hot plate flames and
any shelf that may be installed directly above them. Accurately
position the gasket provided all around the outer edge of the hole in
the top surface as shown in the figures below, pressing it down so
as to make it adhere properly. For measurements, refer to the figure
depending on the hob model to be installed, bearing in mind that in
both models the front and rear sides must skim the hole. Secure the
hob to the counter with brackets A (supplied). Carefully trim any
excess from border B of the gasket. The distances in the following

Instructions for the installer
drawing refer to the hole on the inner side of the gasket.
In case of installation on a hollow compartment with doors, a
separating panel has to be placed under the hob. Keep a minimum
distance of 10 mm between the bottom of the unit and the panel
surface. The panel has to be easily removable to allow access in
the event of technical service.
Overall dimensions: location of gas and electrical connection points
(all measures in mm).
A 85
B 405
C 35
D 35
6
* Dimension A, C : Clearances are
these for the hose assembly

2.2 Clearance above and around domestic appliances
Extract from AS5601
REQUIREMENTS
1 Overhead clearances – (Measurement A)
Range hoods and exhaust fans shall be installed in accordance with
the manufacturer’s instructions. However, in no case shall the
clearance between the highest part of the hob of the cooking
appliance and a range hood be less than 600 mm or, for an overhead
exhaust fan, 750 mm.
Any other downward facing combustible surface less than 600 mm
above the highest part of the hob shall be protected for the full width
and depth of the cooking surface area in accordance with Clause
5.12.1.2. However, in no case shall this clearance to any surface be
less than 450 mm.
2 Side clearances – (Measurements B & C)
7

Instructions for the installer
Where B, measured from the periphery of the nearest burner to any
vertical combustible surface, is less than 200 mm, the surface shall be
protected in accordance with Clause 5.12.1.2 to a height C of not less
than 150 mm above the hob for the full dimension (width or depth) of
the cooking surface area. Where the cooking appliance is fitted with a
‘splashback’, protection of the rear wall is not required.
3 Additional requirements for Freestanding and Elevated Cooking
Appliaces – (Measurements D & E)
Where D, the distance from the periphery of the nearest burner to a
horizontal combustible surface is less than 200 mm, then E shall be
10 mm or more, or the horizontal surface shall be above the trivet.
See insets above.
NOTES
1 Requirement 3 does not apply to a freestanding or elevated
cooking appliance which is designed to prevent flames or the
cooking vessels from extending beyond the periphery of the
appliance.
2 The ‘cooking surface area’ is defined as that part of the
appliance where cooking normally takes place and does not
include those parts of the appliance containing control knobs.
3 For definition of hob, see Clause 1.4.64.
4 For definition of trivet, see Clause 1.4.109.
5 Consideration is to be given to window treatments when
located near cooking appliances. See Clause 5.3.4.
8

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3. Electrical connection
Make sure that the voltage and capacity of the power line conform
to the data shown on the plate located under the casing. Do not
remove this plate for any reason.
The plug on the end of the supply cable and the wall socket must
be the same type and conform to the current electrical system
regulations. Check that the power line is adequately grounded.
On the power line, install an omnipolar cut-off device with contact
cut-off distance greater than or equal to 3 mm, located in an easily
accessible position near the unit.
Do not use reducers, adapters or shunts.
If the power cable is replaced, the wire section on the new cable
must not be less than 1.5 mm2 (3 x 1.5 cable), keeping in mind
that the end to be connected to the hob must have the ground
wire (yellow-green) longer by at least 20 mm. Use only
H05V2V2-F cable or similar which has a maximum temperature
of 90°C. Any replacement needed should be carried out by a
specialised technician who should make the mains connections
according to the following diagram.
L = brown
N = blue
= yellow-green
The manufacturer will not be liable for any damage to
persons or property caused by non-observance of the above
instructions or deriving from the tampering of even a single part
of the hob.

Instructions for the installer
4. Gas connection
Use pipe-joint compound made for use with Natural U.L.P. gas.
The burner it controls is shown next to each knob (the
example corresponds to the front left burner).
This appliance is suitable for installation with Natural
Gas or ULPG (propane). Refer to page 12 for the
relevant burner pressure and appropriate injector sizes.
When the appliance is to be connected to Natural Gas
then the pressure regulator supplied must be fitted to the
gas inlet. A test point (for checking the gas pressure) is
supplied either with the regulator or as a separate fitting
in the case of ULPG (propane) appliances.
Connection of the appliance to the gas supply must be in
accordance with the requirements of AS5601. A 1/2” BSP connector
at the inlet is recommended and the gas supply line to the
appliance must be of adequate length to allow sufficient withdrawal
of appliance for service or disconnection and be:
1. annealed copper pipe or;
2. flexible hose according to AS/NZ1869 & be at least Class
“B”, 10 mm diameter.
The cooker must be installed with provision to allow the gas to be
turned off and disconnected for servicing and removal of the appliance
as required from the gas supply. Before the cooker is operated make
certain all relevant parts are placed in the correct position.
When the installation is completed the installation connections of
cooker will require to be leak tested, the burner operating pressure
and flame checked and adjusted.
Warranty service calls do not cover these adjustments!
To check the operating pressure of the appliance it is recommended
at least 2 large size burners are used. Ensure appliance is secured
to wall when installation is completed.
N.G. The regulator supplied must be fitted to the 1/2BSP thread at
the rear of the appliance. An approved manual shut-off valve must
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