Manual Ariston CP 649 FT (page 27 of 88) (English, German, Dutch, French, Italian, Portuguese)

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sufficient capacity to guarantee an hourly exchange of air

equal to 3 ÷ 5 times the volume of the kitchen. Prolonged,

intensive use of the appliance may require extra ventilation,

e.g. an open window or a more efficient ventilation system

by increasing the extraction power of the electric fan if

installed. Liquid petroleum gas descends towards the floor

as it is heavier than air. Apertures in the outside walls in

rooms containing LPG cylinders should therefore be at floor

level, in order to allow any gas from leaks to be expelled.

Do not store LPG cylinders (even when empty) in basements/

rooms below ground level; it is advisable to keep only the

cylinder in use in the room and connected far from heat

sources which could raise its temperature to above 50°C.

Gas supply

• Check that the appliance is set for the type of gas available

and then connect it to the mains gas piping or the gas

cylinder in compliance with the applicable norms in force.

• This appliance is designed and set to work with the gas

indicated on the label situated on the actual hob. If the

gas supply is different from the type for which the

appliance has been set, replace the corresponding nozzles

(provided), following the instructions given in the paragraph

"Adaptation to different types of gas".

• For trouble-free operation, suitable use of energy and a

longer life cycle for the appliance, make sure that the

supply pressure complies with the values indicated in table

1 "Burner and nozzle specifications", otherwise install a

special pressure regulator on the supply pipe in

compliance with current standards and regulations.

• Connect in such a way that the appliance is subjected to

no strain whatsoever.

Either a rigid metal pipe with fittings (fig. 8-D) in compliance

with norms must be used for connecting to the nipple union

(threaded - cylindrical/conical ½"G fitting "F") situated at

the rear of the appliance (fig. 8), or a flexible steel pipe with

a continuous wall and fittings (fig. 8-C) in compliance with

norms, which must not exceed 2000 mm in length. Check

that the connecting pipe cannot come into contact with

moving parts which could damage or crush it. For installation

with a flexible rubber pipe, apply the special hose support

for liquid gas (fig. 8-A) or natural gas (fig. 8-B). The gasket

"G" (provided) must be utilised in every type of connection.

The two ends of the pipe must be fastened with the purpose

designed pipe collars "E", in compliance with the norms.

The flexible pipe should comply with the norms, and be

specific for the type of gas used. In addition:

• it should be as short as possible, with a maximum length

of 1.5 metres;

• it should not be bent or kinked;

• it should not be in contact with the rear panel of the

appliance or in any case with parts which may reach a

temperature of 50°;

• it should not pass through holes or slits used for dis-

charging the oven flue gases;

• it should not come into contact with pointed parts or

sharp corners;

• it should be easy to inspect along its entire length in

order to be able to check its condition;

• it should be replaced before the date printed on the actual

pipe.

Important: A pressure regulator, in compliance with the

applicable norm in force, must be inserted when

connecting to a liquid gas supply (in a cylinder).

Upon completion of installation, check for leaks from the

gas circuit using a soapy solution (never use a flame).

Make sure that the natural gas pipe is adequate for a

sufficient supply to the appliance when all the burners are

lit.

Adapting to different types of gas (instructions for the hob)

To adapt the hob to a different type of gas from the factory-

set one (indicated on the rating plate at the top of the hood

or on the packaging), the burner nozzles should be replaced

as follows:

• Remove the pan supports and the burners.

• Unscrew the nozzles “A” (fig.9) using a 7 mm socket

wrench and replace them with the ones which have a

diameter suitable for the type of gas to be used, according

to the table 1 "burners and nozzles specifications).

• On completing the operation, replace the old rating label

with the one showing the new type of gas; the sticker is

available from our Service Centres.

fig.9

fig.8

fig.10

Note

Should the pressure of the gas used be different (or vary)

from the recommended pressure, it is necessary to fit a

suitable pressure regulator onto the inlet pipe in compliance

with the norms regarding "regulators for channelled gas".

INSTRUCTIONS FOR THE INSTALLER

Adjusting the primary air of the burners

The primary air of the burners does not need to be adjusted.

Adjusting the low flame

• Turn the tap to the low flame position;

• Remove the knob and turn the adjusting screw, situated

to the right of the tap (fig. 10) until you obtain a regular

small flame, using a screwdriver (loosening the screw

increases the height of the flame, tightening decreases

it).

N.B.: In the case of liquid gas, the regulation screw

must be screwed in all the way.

• Having obtained the low flame setting required and with

the burner lit, abruptly change the position of the knob

several times from minimum to maximum and vice versa

and check that the flame does not go out.

• In appliances fitted with the safety device

(thermocouple), should the device fail to work with the

burners set to the low flame setting, increase the low

flame setting of the same on the adjusting screw.

Once the adjustment has been made, remount the seals

on the by-passes using sealing wax or similar.

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Ariston CP 649 FT Manual

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