Hotpoint G640N, G640W, G640X, G640SN, G640ST Instruction manual

Operating Instructions

HOB

GB

English,1

G640N
G640T
G640W
G640X
G640SN
G640ST
G640SW
G640SX

Contents

GB

Installation, 2-5

Positioning
Gas connection
Data plate
Burner and nozzle specifications

Electrical connection, 6

Description of the appliance, 7

Overall view

Start-up and use, 8

Practical advice on using the burners

Precautions and tips, 9

General safety
Disposal
Recycling & Disposal Information

Maintenance and care, 10

Switching the appliance off
Cleaning the appliance
Gas tap maintenance

Troubleshooting, 11

After Sales Service, 12

Guarantee, 13

20

Installation

A

Examples of ventilation holes
for comburant air.

GB

 Before operating your new appliance please read this
instruction booklet carefully. It contains important information
for safe use, installation and care of the appliance.

 Please keep these operating instructions for future
reference. Pass them on to possible new owners of the
appliance.

Positioning

 Keep packaging material out of the reach of children. It
can become a choking or suffocation hazard (see
Precautions and tips).

 The appliance must be installed by a qualified professional
according to the instructions provided. Incorrect installation
may cause harm to people and animals or may damage
property.

 This unit may be installed and used only in permanently
ventilated rooms in accordance with British Standard Codes
Of Practice: B.S. 6172 / B.S. 5440, Par. 2 and B.S. 6891
Current Editions. The following requirements must be
observed:

 The room must be equipped with an air extraction system

that expels any combustion fumes. This may consist of a
hood or an electric fan that automatically starts each time
the appliance is switched on.

also be equipped with vents to allow gas to escape in the
event of a leak. As a result LPG cylinders, whether
partially or completely full, must not be installed or stored
in rooms or storage areas that are below ground level
(cellars, etc.). It is advisable to keep only the cylinder
being used in the room, positioned so that it is not
subject to heat produced by external sources (ovens,
fireplaces, stoves, etc. ) which could raise the
temperature of the cylinder above 50°C.

Fitting the appliance

Gas and mixed hobs are manufactured with type X degree
protection against overheating. The following precautions
must be taken when installing the hob:

 Kitchen cabinets adjacent to the appliance and taller

than the top of the hob must be at least 600 mm from the
edge of the hob.

 Hoods must be installed according to their relative

installation instruction manuals and at a minimum
distance of 650 mm from the hob.

 Place the wall cabinets adjacent to the hood at a

minimum height of 420 mm from the hob (see figure).

If the hob is installed beneath a
wall cabinet, the latter must be

600mm min.

situated at a minimum of 700 mm
above the hob (see figure).

700mm min.

540mm min.

In a chimney stack or branched flue.
(exclusively for cooking appliances)

Directly to
the Outside

 The room must also allow proper air circulation, as air is

needed for combustion to occur normally. The flow of air
must not be less than 2 m

3

/h per kW of installed power.
The air circulation system may
take air directly from the outside
by means of a pipe with an inner
cross section of at least 100 cm
the opening must not be
vulnerable to any type of
blockages.

Adjacent
Room

Room to be
Vented

The system can also provide the
air needed for combustion
indirectly, i.e. from adjacent rooms
fitted with air circulation tubes as
described above. However, these

Enlarging the ventilation slot
between window and floor.

rooms must not be communal
rooms, bedrooms or rooms that
may present a fire hazard.

 Liquid petroleum gas sinks to the floor as it is heavier

than air. Therefore, rooms containing LPG cylinders must

 The installation cavity should have the dimensions

indicated in the figure.

Fastening hooks are provided, allowing you to fasten the

hob to tops that are between 20 and 40 mm thick. To
ensure the hob is securely fastened to the top, we
recommend you use all the hooks provided.

555 mm

2

;

55 mm

475 mm

Hook fastening diagram

30

Hooking position Hooking position
for top H=20 mm for top H=30 mm

2

Front

40

Hooking position Back
for top H=40 mm

 Use the hooks contained in the accessory pack

 Where the hob is not installed over a built-in oven, a

wooden panel must be installed as insulation. This must
be placed at a minimum distance of 20 mm from the
lower part of the hob.

Ventilation

To ensure adequate ventilation, the back panel of the
cabinet must be removed. It is advisable to install the oven
so that it rests on two strips of wood, or on a completely flat
surface with an opening of at least 45 x 560 mm (see
diagrams).

with the values indicated in Table 1 (Burner and nozzle
specifications). This will ensure the safe operation and
longevity of your appliance while maintaining efficient
energy consumption.

Connection with a rigid pipe (copper or steel)

 Connection to the gas system must be carried out in such
a way as not to place any strain of any kind on the
appliance.
There is an adjustable L-shaped pipe fitting on the
appliance supply ramp and this is fitted with a seal in order
to prevent leaks. The seal must always be replaced after
rotating the pipe fitting (seal provided with appliance). The
gas supply pipe fitting is a threaded 1/2 gas cylindrical male
attachment.

Connecting a flexible jointless stainless steel pipe to a
threaded attachment

The gas supply pipe fitting is a threaded 1/2 gas cylindrical
male attachment.
These pipes must be installed so that they are never longer
than 2000 mm when fully extended. Once connection has
been carried out, make sure that the flexible metal pipe
does not touch any moving parts and is not compressed.

 Only use pipes and seals that comply with current national
regulations.

GB

45 m

.

m

m

0

6

5

m

.

Where a hob is installed above an oven without a
forced ventilation cooling system, adequate ventilation
must be provided inside the cabinet by means of air
holes through which air can pass (see figure).

Gas connection

The appliance should be connected to the main gas supply
or to a gas cylinder in compliance with current national
regulations. Before carrying out the connection, make sure
the cooker is compatible with the gas supply you wish to
use. If this is not the case, follow the instructions indicated in
the paragraph Adapting to different types of gas.
When using liquid gas from a cylinder, install a pressure
regulator which complies with current national regulations.

 Check that the pressure of the gas supply is consistent

Checking the tightness of the connection

 When the installation process is complete, check the pipe
fittings for leaks using a soapy solution. Never use a flame.

Adapting to different types of gas

To adapt the hob to a different type of gas other than default
type (indicated on the rating plate at the base of the hob or
on the packaging), the burner nozzles should be replaced
as follows:

1. Remove the hob grids and slide the burners off their
seats.

2. Unscrew the nozzles using a 7 mm socket spanner, and
replace them with nozzles for the new type of gas (see
table 1 Burner and nozzle characteristics).

3. Reassemble the parts following the above procedure in
the reverse order.

4. Once this procedure is finished, replace the old rating
sticker with one indicating the new type of gas used.
Sticker are available from any of our Service Centres.

 Adjusting the burners primary air :

Does not require adjusting.

3

GB

 Setting the burners to minimum:

1. Turn the tap to the low flame position.

2. Remove the knob and adjust
the adjustment screw, which is
positioned in or next to the tap pin,
until the flame is small but steady.

3. Having adjusted the flame to the required low setting,
while the burner is alight, quickly change the position of
the knob from minimum to maximum and vice versa
several times, checking that the flame does not go out.

4. Some appliances have a safety device (thermocouple)
fitted. If the device fails to work when the burners are set
to the low flame setting, increase this low flame setting
using the adjusting screw.

5. Once the adjustment has been made, replace the seals
on the by-passes using sealing wax or a similar
substance.

 If the appliance is connected to liquid gas, the regulation
screw must be fastened as tightly as possible.

 Once this procedure is finished, replace the old rating
sticker with one indicating the new type of gas used.
Stickers are available from any of our Service Centres.

 Should the gas pressure used be different (or vary slightly)
from the recommended pressure, a suitable pressure
regulator must be fitted to the inlet pipe (in order to comply
with current national regulations).

DATA PLATE

Electrical
connections

voltage of 220-240V ~ 50/60Hz
(see data plate )
This appliance conforms to the
following European Economic
Community directives:

-2006/95/EEC dated 12/12/06
(Low Voltage) and subsequent
amendments

- 89/336/EEC dated 03/05/89
(Electromagnetic Compatibility)
and subsequent amendments

- 93/68/EEC dated 22/07/93 and
subsequent amendments.

- 90/336/EEC dated 29/06/90
(Gas) and subsequent
amendments.

- 2002/96/EC

4

Burner and nozzle specifications

GB

Table 1

Burner Diameter

(mm)

Thermal power

kW (p.c.s.*)

By-Pass

1/100

Liquid Gas Natural Gas

Nozzle

1/100

Flow*

g/h

Nozzle

1/100

Flow*

l/h

Nomin. Ridot. (mm) (mm) *** ** (mm)

Fast (R) 100 3,00 0,70 41 86 218 214 116 286

Semi Fast (S) 75 1,90 0,40 30 70 138 136 106 181

Auxiliary (A) 55 1,00 0,40 30 50 73 71 79 95

Supply
Pressures

* At 15°C and 1013 mbar - dry gas
** Propane P.C.S. = 50.37 MJ/Kg
*** Butane P.C.S. = 49.47 MJ/Kg

Natural P.C.S. = 37.78 MJ/m

SS

Nominal (mbar)

Minimum (mbar)

Maximum (mbar)

3

28-30

20
35

37
25
45

20
17
25

AR

G640N G640SN
G640T G640ST
G640W G640SW
G640X G640SX

5