Hotpoint 7HTD 640, 7HTD 640S User Manual

Operating Instructions

HOB

GB

English, 1

RS

Русский, 11

CISTD 640 S /HA
CISTD 640 S IX/HA
7HTD 640 IX/HA
7HTD 640 S IX/HA

Contents

GB

Installation, 2-5

Positioning
Electrical connection
Gas connection
Data plate
Burner and nozzle specifications

Description of the appliance, 6

Overall view

Start-up and use, 7

Practical advice on using the burners

Precautions and tips, 8

General safety
Disposal

Maintenance and care, 9

Switching the appliance off
Cleaning the appliance
Gas tap maintenance

Troubleshooting, 10

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.

600mm 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.

55

mm

2

;

555

mm

475

m

m

 Before fastening the cooktop in place, position the seal

(supplied) along the perimeter of the countertop, as
shown in the figure.

2

Hook fastening diagram

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

Electrical connection

Hobs equipped with a three-pole power supply cable are
designed to operate with alternating current at the voltage
and frequency indicated on the data plate (this is located on
the lower part of the appliance). The earth wire in the cable
has a green and yellow cover. If the appliance is to be
installed above a built-in electric oven, the electrical
connection of the hob and the oven must be carried out
separately, both for electrical safety purposes and to make
extracting the oven easier.

GB

Front

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).

45 mm.

.

m

560 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).

Connecting the supply cable to the mains

Install a standardised plug corresponding to the load
indicated on the data plate.
The appliance must be directly connected to the mains using
an omnipolar circuit-breaker with a minimum contact opening
of 3 mm installed between the appliance and the mains. The
circuit-breaker must be suitable for the charge indicated and
must comply with current electrical regulations (the earthing
wire must not be interrupted by the circuit-breaker). The
supply cable must not come into contact with surfaces with
temperatures higher than 50°C.

 The installer must ensure that the correct electrical
connection has been made and that it is compliant with
safety regulations.
Before connecting to the power supply, make sure that:

 The appliance is earthed and the plug is compliant with

the law.

 The socket can withstand the maximum power of the

appliance, which is indicated on the data plate.

 The voltage is in the range between the values indicated

on the data plate.

 The socket is compatible with the plug of the appliance. If

the socket is incompatible with the plug, ask an
authorised technician to replace it. Do not use extension
cords or multiple sockets.

 Once the appliance has been installed, the power supply
cable and the electrical socket must be easily accessible.

 The cable must not be bent or compressed.

 The cable must be checked regularly and replaced by

authorised technicians only (see Assistance).

 The manufacturer declines any liability should these safety
measures not be observed.

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.

3

GB

 Check that the pressure of the gas supply is consistent
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.

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.

 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

See data plate

connections

This appliance conforms to the
following European Economic
Community directives:

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

- 2004/108/EEC dated 15/12/04
(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 and subsequent
amendments.

4

Burner and nozzle specifications

GB

Table 1

Burner Diameter

(mm)

Fast (R)

Semi Fast (S)

Auxiliary (A)

Supply
Pressures

100 3,00 0,70 41 39 86 218 214 116 286 143 286

75 1,65 0.40 30 28 64 120 118 96 157 105 157

55 1,00 0,40 30 28 50 73 71 79 95 80 95

Thermal power

kW (p.c.s.*)

Nomin. Ridot. (1) (mm) *** ** (mm) (mm)

Nominal (mbar)

Minimum (mbar)

Maximum (mbar)

By-Pass

1/100

(mm)

* 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

3

(1) Only for appliances with the security device.

A

Liquid Gas Natural Gas

Nozzle

1/100

28-30

20
35

Flow*

g/h

37
25
45

Nozzle

1/100

20
17
25

Flow*

l/h

Nozzle

1/100

Flow*

l/h

13

6,5

18

RS

S

CISTD 640 S/HA
CISTD 640 S IX/HA
7HTD 640 IX/HA
7HTD 640 S IX/HA

5

Description of the

appliance

GB

Overall v iew

Support Grid for

COOKWARE

GAS BURNERS

Control Knobs for

GAS BURNERS

SAFETY

DEVICES *

 GAS BURNERS differ in size and power. Use the

diameter of the cookware to choose the most
appropriate burner to cook with.

 Control Knobs for GAS BURNERS adjust the

power or the size of the flame.

 GAS BURNER ignition* enables a specific burner

to be lit automatically.

 SAFETY DEVICE* stops the gas flow if the flame

is accidentally extinguished.

Ignition for

GAS BURNERS *

Only available on certain models.

*

6