User Instruction Book
for
ARISTON GAS HOB
Model
PF750AST(GH)
00550922
Congratualtions on choosing an Ariston appliance, which you will find is dependable and easy to use.We recommend
that you read this manual for best performance and to extend the life of your appliance. Thank you.
Close-up View
G
A
F
B
D
H
E
C
A. Gas Burners
B. Support Grid for Cookware
C. Control Knobs for Gas Burners and Electric Hot
F. Safety Device (only on certain models) - Activates if
the flame accidentally goes out (spills, drafts, etc.),
interrupting the delivery of gas to the burner.
G. Electric Hot Plate (only on certain models)
H. Indicator Light for Electric Hot Plate (only on certain
models)
Plate
D. Ignitor for Gas Burners (only on certain models)
E. Ignition Button for Gas Burners (only on certain
models)
How To UseYour Appliance
The position of the corresponding gas burner or electric
hot plate (if present) is indicated on each control knob.
To light a burner, simply press the corresponding knob
all the way in and then turn it anti-clockwise to the
"High" setting, keeping it pressed in until the burner
lights.
Caution: If the burner accidently goes out, turn off the
gas on the control knob and wait at least 1 minute before
you try to to light it again.
Gas Burners
The burners differ in size and power. Choose the most
appropriate one for the diameter of the cookware being
used.
The burner can be regulated with the corresonding control
knob by using one of the following settings:
To turn off a burner, turn the knob clockwise until it stops
(it should be on the “•” setting).
•
Off
The “separate double flame” burner (only on some
models)
This burner consists of two concentric burners which can
operate either together or separately.
Use of the double flame on the maximum setting gives a
very high power which reduces cooking times with respect
to conventional burners.
Moreover the double flame crown provides a more uniform
distribution of heat on the bottom of the pan, when using
both burners on minimum.
Pots and pans of all sizes can be used. In the case of the
smaller pots and pans we recommend the use of only the
internal burner.
There is a separate control knob for each of the “separate
double flame” burners.
High
Low
To turn on one of the burners, place a lighted match or
lighter near the burner, press the knob all the way in and
turn it anti-clockwise to the "High" setting.
On those models fitted with a safety device (F), the
knob must be pressed in for about 6 seconds until the
device that keeps the flame lit warms up.
On those models fitted with an ignitor (D), the "E"
ignition button, identified by the
symbol, must first
be pressed and then the corresponding knob pushed
all the way in and turned anti-clockwise to the "High"
setting.
Some models are equipped with an ignition button
incorporated into the control knob. If this is the case, the
ignitor (D) is present, but not the "E" button.
The knob marked by the symbol
burner;
operates the external
The knob marked by the symbol
operates the internal
12
burner.
Electric Hot Plate (only on certain models)
The hot plate can be: "normal" and "fast". The latter can
be identified by a red boss in the center of the hot plate
itself.
The hot plate can be regulated by turning the
corresponding knob in the clockwise or counter-clockwise
direction to any one of the 6 different settings:
0 Off
1 Low
2-5 Medium
6 High
The section entitled, "Practical Cooking Advise", provides
information on the recommended settings for various types
of food or cooking processes.
When the knob is on any of the settings other than "Off",
the "H" operating light comes on.
To turn on one of the rings, press the relative knob in all the
way and turn it anti-clockwise to the high setting .The burner
is fitted with an electronic igniter that automatically starts when
the knob is pressed in.
Since the burner is equipped with a safety device "F", after
lighting the burner keep the knob pressed in for about 6
seconds to allow the device which keeps the flame lit
automatically to heat up.
The selected burner can be regulated using the corresponding
knob, as follows:
•
Off
High
Low
To turn off a burner, turn the knob clockwise until it stops
(it should be on the “•” setting).
How to KeepYour Hob in Shape
Before cleaning or performing maintenance on your
appliance, disconnect it from the electrical power supply.
To extend the life of the hob, it is absolutely
indispensable that it be cleaned carefully and
thoroughly on a frequent basis, keeping in mind the
following:
•
•
The electric hobs should be cleaned using a damp cloth
and then rubbed with oil while still warm;
Stainless steel can be stained if it remains in contact
with highly calcareous water or aggressive detergents
(containing phosphorous) for an extended period of
time. It is recommended that these parts be rinsed
thoroughly with water and then dried well. It is also a
good idea to clean up any spills.
·
•
Do not use steam equipment to clean the appliance.
The enamelled parts and the glass top, if present, must
be washed with warm water without using abrasive
powders or corrosive substances which could ruin
them;
Greasing theTaps
The taps may jam in time or they may become difficult to
turn. If so, the tap itself must be replaced.
N.B.:This operation must be performed by a technician
authorised by the manufacturer.
•
•
The removable parts of the burners should be washed
frequently with warm water and soap, making sure to
remove caked-on substances;
On hobs with automatic ignition, the end of the
electronic ignition device must be cleaned carefully and
frequently, making sure that the gas holes are not
clogged;
13
Practical Advice
Before using the hot plates for the first time, you
Practical Advise on Using the Burners
should heat them at maximum temperature for
approximately 4 minutes, without any pans. During
this initial stage, their protective coating hardens and
reaches its maximum resistance.
For best performance, follow these general guidelines:
•
Use the appropriate cookware for each burner (see
table) in order to prevent the flame from reaching the
sides of the pot or pan;
•
•
Alwasy use cookware with a flat bottom and keep the
lid on;
When the contents come to a boil, turn the knob to
"Low".
Practical Advice on Using the Half Fish-Kettle
Burner
The two central burners, or Half Fish-Kettle burners, are
eliptic in form and can be turned up to 90°. This makes
the cooktop more flexible in terms of how it can be used.
Burner
Rapid (R)
ø Cookware diameter (cm)
24 - 26
24 - 26
Reduced Rapid (RR)
Semi-Rapid (S)
Auxilliary (A)
16 - 20
10 - 14
Half-Fishburner (SP)
Triple Crown (TC)
Ultrarapid (UR)
16 - 20
24 - 26
To turn the two central burners 90°, proceed as follows:
24 - 26
•
•
•
•
Make sure that the burners are cool;
Lift the burner completely out of its housing;
Replace it in its housing in the position desired;
Make sure that the burners are positioned correctly
before use.
Fishburner (P)
Oval cookware
Double flame (DCDR
internal)
10 -14
In addition, the two cetnral burners can be used in tandem
or speartely with cookware of different shapes and sizes:
Double flame (DCDR
external)
26 - 28
•
•
Double burner for a fish-kettle or oval cookware (Fig. A).
Double burner for a griddle or rectangular/square
cookware with minimum dimensions of 28x28 cm
(Fig. B)
Double burner for large cookware (diameter of 24-26
cm) (Fig. C).
N.B. On the models supplied with a reducer shelf, remember
that this should be used only for the Double flame internal
(DCDR internal) burner when you use casserole dishes with
a diameter under 12 cm.
•
•
Practical Advice on Using the Electric Hot Plates
In order to avoid heat loss and damage to the hot plate,
use cookware with a flat bottom the diameter of which is
not less than that of the hot plate.
Single burner for medium size cookware (diameter of
16-20 cm) (Fig. D).
Setting Normal or Fast Plate
0
1
Off
Cooking vegetables, fish
Cooking potatoes (using steam) soups,
chickpeas, beans.
2
3
Fig. A
Fig. B
Continuing the cooking of large quantities
of food, minestrone
4
5
For roasting (average)
For roasting (above average)
For browning and reaching a boil in a
short time.
6
Fig. C
Fig. D
14
Is there a problem?
It may occur that the cooktop does not function or does
The burner does not remain on when set to "Low".
not function properly. Before calling customer service for
assistance, lets see what can be done.
First of all, check to see that there are no interruptions in
the gas and electrical supplies, and, in particular, that the
gas valves for the mains are open.
Check to make sure that:
•
•
•
The gas holes are not clogged.
There are no draughts near the cooking surface.
The minimum has been adjusted correctly (see the
section entitled, "Minimum Regulation").
The burner does not light or the flame is not uniform
around the burner.
The cookware is not stable.
Check to make sure that:
Check to make sure that:
•
•
The bottom of the cookware is perfectly flat.
The cookware is centered correctly on the burner or
electric hot plate.
•
•
The gas holes on the burner are not clogged;
All of the movable parts that make up the burner are
mounted correctly;
•
The support grids have not been inverted.
•
There are no draughts around the cooking surface.
If, despite all of these checks, the cooktop does not
function properly and problem persists, call the nearest
Merloni Elettrodomestici Customer Service Centre,
informing them of:
- The type of problem.
- The abbreviation used to identify the model (Mod. ...) as
indicated on the warranty.
Never call upon technicians not authorized by the
manufacturer, and refuse to accept spare parts that are
not original.
The flame does not stay lighted on the model with
the safety device.
Check to make sure that:
•
•
You press the knob all the way in;
You keep the knob pressed in long enough to activate
the safety device.
The gas holes are not clogged in the area
corresponding to the safety device.
•
Safety Is a Good Habit to Get Into
To maintain the EFFICIENCY and SAFETY of this appliance, we recommend:
•
•
call only the Service Centers authorized by the manufacturer
always use original Spare Parts
•
•
This manual is for a class 3 built-in cooktop.
This appliance is designed for non-professional use in
the home and its features and technical characteristics
must not be modified.
These instructions are only valid for the countries the
symbols for which appear on the manual and the serial
plate.
The electrical system of this appliance is safe only when
it is correctly connected to an adequate earthing
system, as required by current safety standards.
come into contact with the hot parts of the cooktop;
Exposure to atmospheric agents (rain, sun);
Using flammable liquids nearby;
Using adaptors, multiple outlet plugs and/or extensions;
Using unstable or deformed cookware;
Leaving the electric hobs on without cookware on top
of them;
Closing the glass top (if present) while the gas burners
or electrical hot plates are still hot;
Trying to install or repair the appliance without the
assistance of qualified personnel.
-
-
-
-
-
•
•
-
-
Prevent children and the disabled from coming into
contact or having access to the following, as they
are possible sources of danger:
The assistance of qualified personnel must be called
upon in the following cases:
-
-
-
The controls and the appliance in general;
-
Installation (in accordance with the manufacturer's
instructions);
When in doubt about the operation of the appliance;
Replacement of the electrical outlet becuase it is
incompatible with the plug.
The packaging (plastic bags, polystyrene, nails, etc.);
The appliance, during and immediately after use given
the heat generated by its use;
The appliance when no longer in installed (in this case,
all potentially dangerous parts must be made safe).
-
-
-
Contact service centers authorized by the
manufacturer in the following cases:
The following should be avoided:
-
-
-
Touching the appliance with wet parts of the body;
Using the appliance with bare feet;
Pulling on the appliance or the power supply cord to
disconnect them from the electrical outlet;
Improper and/or dangerous use;
-
When in doubt about the condition of the appliance
after having removed the packing;
Damage to or replacement of the power supply cord;
In the case of a breakdown or malfunction: ask for
original spare parts.
-
-
-
-
-
Obstructing the ventilation or heat dissipation slots;
Allowing the power supply cord of small appliances to
15
It is recommended that you follow the guidelines
below:
-
-
Always check to make sure that the control knobs are
on the “•”/”o” setting when the appliance is not in use;
Cut the power supply cord after disconnecting it from
the electrical mains when you decide to no longer use
the appliance.
The manufacturer will not be held liable for any
damages arising out of : incorrect installation or
improper, incorrect or unreasonable use..
-
-
-
Only use the appliance to cook food, avoiding all other
uses;
Check the condition of the appliance after it has been
unpacked;
Disconnect the appliance from the power supply in the
event of malfunction and always before cleaning or
maintenance;
•
-
When not in use, disconnect the appliance from the
power supply and turn off the gas valve (if present);
Installation Instructions for built-in
Detail A
Adjacent
Room
Room to be
Vented
The following instructions are intended for the installer so that
theinstallationandmaintenanceproceduresmaybefollowedin
the most professional and expert manner possible.Important:
Disconnect the appliance from the electrical supply before
performing any maintenance or regulation upkeep work.
Positioning the Cooktop
Important: 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:
A
Examples of ventilation holes
for comburant air.
Enlarging the ventilation slot
between window and floor.
Fig. A
Fig. B
a) Theroommustbefittedwithaventilationsystemwhichvents
smokeandgasesfromcombustiontotheoutside.Thismust
be done by means of a hood or electric ventilator that turns
on automatically each time the hood is operated.
c) Intensive and prolonged use of the appliance may necessi-
tate supplemental ventilation, e.g. opening a window or
increasing the power of the air intake system (if present).
d) Liquidified petroleum gases are heavier than air and, as a
result, settle downwards. Rooms in which LPG tanks are
installedmustbefittedwithventilationopeningstotheoutside
in order to allow the gas to escape in the event of a leak.
Therefore, LPG tanks, whether empty or partially full, must
not be installed or stored in rooms or spaces below ground
level (cellars, ect.).It is also a good idea to keep only the tank
currently being used in the room, making sure that it is not
near sources of heat (ovens, fireplaces, stoves, etc.) that
could raise the internal temperature of the tank above 50°C.
Installation of Built-in Cooktops
The appliance can be installed next to furniture units which
are no taller than the top of the cooker hob. The wall in
direct contact with the back panel of the cooker must be
made of non-flammable material. During operation the
back panel of the cooker could reach a temperature of
50°C above room temperature. Forproper installation of the
cooktop, the following guidlines must be followed:
a) If the cabinet(s) located next to the cooktop are higher than
the cooktop itself, the cabinet(s) must be installed at least
110 mm from the edge cooktop;
b) Hoods must be installed in accordance with the instructions
containedintheinstallationmanualforthehoodsthemselves,
and no less than 650 mm from the cooktop;
c) In the case of the 600 mm cooker hoods, besides following
the recommendations in point b), the cabinets should be
positioned next to the hood at a height of at least 540 mm
from the top since this will make it possible to install the lid
and move it correctly.The cabinet should always be installed
In a chimney stack or branched flue.
(exclusively for cooking appliances)
Directly to the Outside
b) The room must also allow for the influx of the air needed for
proper combustion.The flow of air for combustion purposes
must not be less than 2 m³/h per kW of installed capacity.
The supply of said air can be effected by means of direct
influx from the outside through a duct with a inner cross
section of at least 100 cm² which must not be able to be
accidentally blocked.Those appliances which are not fitted
with a safety device to prevent the flame from accidentally
going out must have a ventilation opening twice the size
otherwise required, i.e. a minimum of 200 cm² (Fig. A).
Otherwise,theroomcanbeventedindirectlythroughadjacent
roomsfittedwithventilationductstotheoutsideasdescribed
above, as long as the adjacent rooms are not shared areas,
bedrooms or present the risk of fire (Fig. B).
16
at a height from the top which allows easy use of pots and
pans on the cooker.
d) Should the cooktop be installed directly under a cupboard,
the latter should be at least 700 mm (millimetres) from the
top, as shown in Figure.
N.B: Use the clamps contained in the "accessory kit."
f) In the event the cooktop is not installed above a built-in oven,
awoodpanelmustbeinsertedasinsulation.Thispanelmust
be placed at least 20 mm from the bottom of the cooktop
itself.
Important: When installing the cooktop above a built-in oven,
the oven should be placed on two wooden strips;in the case of
a joining cabinet surface, remember to leave a space of at least
45 x 560 mm at the back.
600mm min.
560 mm.
e) Thedimensionsofthecutoutfortheappliancemustbethose
indicated in the figure. Clamps are provided to fasten the
cooktoptocountersmeasuringfrom20to40mminthickness.
To fastenthecooktopsecurely, itisrecommendedthatallthe
clamps be used.
When installing the cooktop above a built-in oven without forced
ventilation,ensurethatthereareairinletsandoutletsforventilating
the interior of the cabinet adequately.
55 mm
555 mm
Gas Connection for Cooktop
The cooktop should be connected to the gas supply by an
authorizedinstaller.Duringinstallationofthisproductitisessential
tofitanapprovedgastaptoisolatethesupplyfromtheappliance
for the convenience of any subsequent removal or servicing.
Connectionoftheappliancetothegasmainsorliquidgastanks
must be carried out according to the safety standards currently
in force, and only after it is ascertained that it is suitable for the
type of gas to be used.If not, follow the instructions indicated in
the section entitled,“Adapting the Cooktop for DifferentTypes of
Gas”. If the cooktop is to be connected to tanks containing liquid
gas, use pressure regulators that comply with current safety
standards.
Fastening Clamps - Assembly Diagram
Important:To insure that the appliance operates safety, the gas
is regulated correctly and your appliance lasts over time, make
sure that gas pressure levels comply with the indications given
in Table 1, “Nozzle and Burner Specifications”.
Clamp Position for
H=20mm top
Clamp Position for
H=30mm top
Front
Gas Connection to Non-flexible Pipe
(copper or steel)
Connection to the gas source must be done in such a way as to
not create any stress points at any part of the appliance.
The appliance is fitted with an adjustable, "L" shaped connector
and a gasket for the attachment to the gas supply. Should this
connector have to be turned, the gasket must be replaced
(supplied with the appliance).
The gas feed connector to the appliance is a threaded, male 1/
2" connector for round gas pipe.
Clamp Position for
H=40mm top
Back
17
Gas Connection to Flexible Steel Pipe
replacethemwiththoseforthenewtypeofgas.(Seetable1,
“Burner and Nozzle Specifications”).
The gas feed connector to the appliance is a threaded, male 1/
2" connector for round gas pipe. Only use pipes, tubes and
gaskets that comply with current safety codes. The maximum
length of the flexible pipes must not exceed 2000 mm.Once the
connection has been made, ensure that the flexible metal tube
does not touch any moving parts and is not crushed.
• Reassemble the parts following the instructions in reverse
order.
• Oncompletingtheoperation, replacetheoldratinglabelwith
the one showing the new type of gas;the sticker is available
from our Service Centres.
If the gas pressure is different than that prescribed, a pressure
regulator must be installed at the source, in compliance with
national standards governing the use of piped gas regulators.
Check the Seal
Once the appliance has been installed, make sure all the
connections are properly sealed, using a soapy water solution.
Never use a flame.
Replacing the nozzles on separate “double flame “
burners:
Electrical Connection
•
remove the grids and slide the burners from their
housings.The burner consists of 2 separate parts (Fig.
C and fig. D);
unscrew the burers with a 7 mm wrench spanner.The
internal burner has a nozzle, the external burner has
two (of the same size).Replace the nozzle with models
suited to the new type of gas (see table 1).
replace all the components by repeating the steps in
reverse order.
The cooktops fitted with a tripolar electrical supply cord are
designed to be be used with alternating current according to the
indications on the rating plate located under the cooktop. The
earthing wire can be identified by its yellow-green colour.
In the case of installation over a built-in electric oven, the
electrical connections for the cooktop and oven should be
independent, not only for safety purposes, but also to facilitate
removal of one or both in the future.
•
•
Electrical Connection for Gas Cooktop
Fit the supply cord with a standard plug for the demand rate
indicated on the rating plate or connect it directly to the electrical
mains. In the latter case, a single pole switch must be placed
between the appliance and the mains, with a minimum opening
between the contacts of 3 mm in compliance with current safety
codes (the earthing wire must not be interrupted by the switch).
The power supply cord must be positioned so that it does not
reach a temperature in excess of 50°C above room temperatu-
re at any point.
Before making the actual connection, make sure that:
• The fuse and electrical system can withstand the load
Fig. C
Regulation of Air Supply to the Burner
Fig. D
required by the appliance;
The burners do not need a primary air regulator.
• That the electrical supply system is equiped with an efficient
earth hook-up according to the norms and regulations
prescribed by law;
• That the plug or switch is easily accessible.
Important: the wires in the mains lead are coloured in
accordance with the following code:
Minimum Regulation
• Turn the gas valve to minimum.
•
Remove the knob and turn the regulator screw (positioned
either on the side of the top or inside the shaft) clockwise
until the flame becomes small but regular.
N.B.: In the case of liquid gas, the regulation screw must be fully
screwed in (clockwise).
Green &Yellow
Blue
Brown
- Earth
- Neutral
- Live
• Make sure that, when the knob is turned rapidly high to low,
the flame does not go out.
Asthecoloursofthewiresinthemainsleadmaynotcorrespond
withthecolouredmarkingsidentifyingtheterminalsinyourplug,
proceed as follows:
• In the event of a malfunction on appliances with the security
device (thermocouple) when the gas supply is set at
minimum, increase the minimum supply levels using the
regulator screw.
Connect the Green &Yellow wire to the terminal marked “E” or
or coloured Green or Green &Yellow.
Once the adjustment has been made, apply sealing wax, or a
suitable substitute, to the old seals on the by-pass.
Connect the Brown wire to the terminal marked “L” or coloured
Red.
Connect the Blue wire to the terminal marked “N” or coloured
Black.
Adapting the Cooktop for DifferentTypes of Gas
Toadaptthecooktoptoadifferenttypeofgasthanthatforwhich
it was designed, (see the sticker under the hob or on the
packaging), the burner nozzles must be changed, as follows:
• Remove the pan supports and slide the burners out of the
cooktop.
• Unscrew the nozzles using a 7mm socket wrench and
18
Characteristic of the burners and nozzles
Table1 (For Hungary)
(only model PF 760...)
G 20
G 25.1
Thermal Nozzle
G 30
Burner
By-pass
Thermal
Nozzle
Thermal
Nozzle
1/100 (mm) power kW 1/100 (mm) power kW 1/100 (mm) power kW 1/100 (mm)
Semi-Fishburner (SP)
Reduced Fast (RR)
Semi Fast (S)
63
41
30
30
1,50
2,60
1,90
1,00
88
110
106
79
1,20
2,00
1,50
0,70
88
110
106
79
1,30
2,30
1,70
0,90
60
80
70
50
Auxiliary (A)
Double flame (DCDR
internal)
30
1,00
70
0,85
70
0,90
44
Double flame (DCDR
external)
57
4,60
114
3,60
114
4,10
70
2 nozzle
Supply pressures
25 mbar
25 mbar
30 mbar
At 15°C and 1013 mbar-dry gas
P.C.I. G20
P.C.I. G30
P.C.I. G25.1
122,8 MJ/m3
30,9 MJ/m3
35,9 MJ/m3
Table 1
Liquid Gas
Natural Gas
Burner
Diameter Thermal power By-Pass
Nozzle
Flow*
g/h
Nozzle
Flow*
l/h
(mm)
kW (p.c.s.*)
1/100
(mm)
41
1/100
(mm)
86
1/100
(mm)
116
Nomin. Ridot.
***
**
Fast (R)
100
100
3,00
2,60
0,70
0,70
218
214
286
248
Reduced Fast
(RR)
41
80
189
186
110
Semi Fast (S)
Auxiliary (A)
75
55
1,90
1,00
0,40
0,40
30
30
70
50
138
73
136
71
106
79
181
95
Triple Crown
(TC)
130
3,60
1,30
57
94
262
257
137
343
Ultrarapid (UR)
Fishburner (P)
100
—
3,40
3,00
0,70
1,30
41
63
91
86
240
218
236
214
123
116
314
286
Semi-Fishburner
(SP)
—
1,50
0,90
0,70
0,40
41
30
60
44
109
65
107
64
88
70
143
86
Double flame
(DCDR internal)
30
Double flame
(DCDR external)
2 nozzle
130
4,10
1,30
57
70
298
293
114
390
Nominal (mbar)
Minimum (mbar)
Maximum (mbar)
28-30
20
35
37
25
45
20
17
25
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/m3
This appliance conforms with the following European
Economic Community directives:
-
-
-
-
73/23/EEC of 19/02/73 (LowVoltage) and subsequent
modifications;
89/336/EEC of 03/05/89 (Electromagnetic
Compatibility) and subsequent modifications;
90/396/EEC of 29/06/90 (Gas) and subsequent
modifications;
93/68/EEC of 22/07/93 and subsequent modifications.
19
SP
SP
S
A
S
S
RR
A
RR
RR
A
S
S
R
P
A
S
S
S
PF 740 A / PF 740 AS
PF 741 A / PF 741 AS
PF 750 ASP
PF 760 AS
PF 740 A.1 / PF 740 AS.1
PF 741 A.1 / PF 741 AS.1
S
S
RR
S
RR
RR
DCDR
UR
TC
A
A
A
S
S
S
PF 760 DR GH
PF 750 A / PF 750 AS
PF 750 AST
PF 750 AST R
20
|