GAS DEEP FAT FRYERS
700 - Series
Models: 72/02FRG, 73/02FRG, 74/02FRG
Installation and Operation Manual
S/N: Rev.: 1.1
23.3.2 005 Rev.
1. General information ..................................................................................... 1
1.1 Symbols used in the manual .......................................................................................... 1
1.2 Symbols used on the appliance ...................................................................................... 1
1.3 Checking correspondence between the appliance and the manual ................................ 2
2. Safety .............................................................................................................. 3
2.1 Using the appliance safely ............................................................................................. 3
2.2 Safety instructions in the event of a fault ...................................................................... 3
2.3 Additional prohibitions (hazardous procedures) ........................................................... 4
2.4 Disposing of the appliance ............................................................................................ 4
3. Functional description .................................................................................. 5
3.1 Application of the appliance .......................................................................................... 5
3.1.1 Prohibited use/Use for unintended purposes ......................................................... 5
3.2 Construction .................................................................................................................. 5
3.3 Operating principle ........................................................................................................ 6
4. Operating instructions ................................................................................. 7
4.1 Prior to use ..................................................................................................................... 7
4.1.1 Preparing the appliance for use .............................................................................. 7
4.2 Using the appliance ....................................................................................................... 8
4.2.1 Filling the tank with oil .......................................................................................... 8
4.2.2 Lighting the pilot flame ......................................................................................... 9
4.2.3 Lighting the main tank burner ............................................................................... 9
4.2.4 Frying ................................................................................................................... 10
4.2.5 Switching off the appliance ................................................................................. 10
4.2.6 Safety thermostat ................................................................................................. 11
4.2.7 Emptying the tank ................................................................................................ 12
4.3 After-use care .............................................................................................................. 13
4.3.1 Cleaning ............................................................................................................... 13
4.3.2 Idle period ............................................................................................................ 14
4.3.3 Periodic maintenance ........................................................................................... 14
23.3.2 005 Rev.
5. Installation ................................................................................................... 15
5.1 General information ..................................................................................................... 15
5.1.1 Regulatory installation conditions ....................................................................... 15
5.2 Exhausting fumes ........................................................................................................ 15
5.3 Possible environmental interference ............................................................................ 16
5.4 Storage ......................................................................................................................... 16
5.5 Unpacking the appliance ............................................................................................. 16
5.6 Disposing of packaging materials ............................................................................... 16
5.7 Positioning ................................................................................................................... 16
5.8 Connecting gas supply ................................................................................................. 17
5.8.1 Checking supply pressure after installation ......................................................... 19
5.8.2 Gas technical specifications ................................................................................. 21
5.8.3 Checking operation .............................................................................................. 23
5.9 Rating plate .................................................................................................................. 23
6. Adjustment instructions ............................................................................. 25
6.1 Converting the appliance to burn a different type of gas ............................................ 25
6.1.1 Replacing main burner nozzles ............................................................................ 26
6.1.2 Adjusting primary air ........................................................................................... 27
6.1.3 Replacing pilot burner nozzle .............................................................................. 28
7. Troubleshooting .......................................................................................... 31
8. Spare parts .................................................................................................. 33
8.1 Voltage codes .............................................................................................................. 35
8.2 Product codes ............................................................................................................... 35
9. Technical specifications .............................................................................. 45
23.3.2005 Rev. 1.0
General information
1
1. General information
Read the instructions in this manual carefully, as they contain important information on
how to install, use and service the appliance safely, properly, and effectively.
Keep this manual in a safe place so that it can be used as reference by other operators of
the appliance.
This appliance should be installed following the instructions provided by the manufacturer and in compliance with all applicable local regulations. This appliance should be connected to the power supply by qualified personnel only.
All personnel in charge of using this appliance should be specifically trained in its operation.
In the event of failure or malfunction, switch off the appliance. The periodic functional
checks requested in this manual should be carried out according to the instructions. Have
the appliance serviced by a technically qualified person duly authorized by the manufacturer that uses genuine spare parts.
Failure to comply with the above may jeopardise the appliance’s safety.
1.1 Symbols used in the manual
This symbol informs about a situation where a safety risk could be imminent. The instructions provided are mandatory in order to prevent injury.
This symbol informs about the right way to act in order to prevent bad results, damage to
the appliance, or hazardous situations.
This symbol informs about tips and hints that help the user to get the best performance out
of the appliance.
This symbol informs about a function that should be taken into account for self-control
purposes.
1.2 Symbols used on the appliance
This symbol on a part warns the user that there are electrical terminals behind it. Therefore, the concerned part should only be removed by qualified personnel.
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General information
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1.3 Checking correspondence between the appliance and the manual
The rating plate of the appliance shows its serial number. If the manuals are missing, it is
possible to order new ones from the manufacturer or your local representative. When ordering new manuals it is essential to quote the serial number shown on the rating plate.
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Safety
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2. Safety
2.1 Using the appliance safely
Being an appliance designed for professional use only, it should be operated by qualified
personnel exclusively. Never leave the deep fat fryer unattended while in operation.
Cooking with old and filthy oil is a safety risk; make sure that you always use fresh or
purified oil.
Foodstuffs to be fried should always be as dry as possible. Cooking foodstuffs with high
moisture content causes oil to foam and overflow.
Do not try to fry too much food at the same time. The maximum recommended quantity
to be fried at the same time is about half of the basket capacity.
If oil level approaches the minimum level line marked on the side panel of the tank, pour
some more oil into the tank until you reach the maximum level. If you should need to add
oil while the appliance is in operation, use cold oil and pour it into the tank very carefully.
In this way, you will prevent oil from splashing (fire hazard). In any case, do not mix large
amounts of fresh and old oil or fat because fresh oil will spoil much faster when in contact
with old oil.
Too little oil in the tank may result in overheating.
Never leave the deep fat fryer on without oil in the tank! Should this happen accidentally,
the safety thermostat will turn off the appliance.
Do not move the appliance while hot.
IF OIL SHOULD CATCH FIRE, NEVER USE WATER TO EXTINGUISH IT.
2.2 Safety instructions in the event of a fault
Always keep the lid close at hand, in an easily accessible place.
Should oil catch fire, use the lid as first extinguishing means and then smother the fire
with a fire blanket.
In the event of a fault or malfunction, switch off the appliance and call the service.
If an emergency occours, turn off the gas shut off valve on the gas supply line.
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Safety
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2.3 Additional prohibitions (hazardous procedures)
Never tamper with the seals on the adjusting screws that are found on the gas valves
2.4 Disposing of the appliance
This appliance was built by using recyclable raw materials and does not contain any hazardous or toxic substances. To dispose of the appliance and all its packaging materials,
strictly follow all local regulations in force in the place where it is installed. Packaging
materials should be divided according to the type and delivered to a specific collection
site. Ensure compliance of applicable environmental protection regulations.
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Functional description
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3. Functional description
3.1 Application of the appliance
The deep fat fryer is intended to cook fresh or deep-frozen products and to fry half-cooked
products continuously.
3.1.1 Prohibited use/Use for unintended purposes
The deep fat fryer is not designed for use as a bain-marie or pasta cooker.
The manufacturer cannot be held liable for any faults caused by defective installation or
inappropriate use of the appliance. In such cases the warranty shall be null and void.
3.2 Construction
Exterior finish and adjustable feet are all AISI 18/10 stainless steel.
Tanks are stainless steel type AISI 18/10 with cool zone and foam area.
Worktops are pressed and have rounded corners.
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Functional description
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3.3 Operating principle
Oil is heated up to the desired temperature by means of tubular steel burners fitted outside
the tank. Burners can withstand both mechanical and thermal stresses. The pilot flame and
the burners are fitted with fixed nozzles.
Oil temperature can be selected between 110°C (230°F) and 190°C (374°F) (item 1 in Fig.
1) and intermediate values.
The easiest way to cook foodstuffs is to fry them in the frying baskets supplied with the
appliance.
The deep fat fryer is equipped with a safety thermostat (item 3 in Fig. 1) that stops gas
flow in the event that oil temperature exceeds 230°C (446°F) for whatever reason.
Fig. 1
1. Gas valve knob
2. Piezoelectric ignition
3. Safety thermostat
4. Pilot flame inspection hole
5. Oil drain valve
6. Lever to open/close the drain valve
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Operating instructions
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4. Operating instructions
4.1 Prior to use
4.1.1 Preparing the appliance for use
Before cooking food for the first time, we recommend cleaning the appliance --and especially the tanks-- thoroughly. Remove all packaging materials and adhesive films from the
deep fat fryer very carefully. Clean the deep fat fryer using hot water.
Drain cleaning water from the tank (see chapter "Emptying the tank" further below). Wipe
the appliance dry with a clean cloth.
All stainless steel parts should be cleaned using a detergent free from abrasive substances
and specifically suited to clean steel surfaces.
Never use water jets to clean the appliance.
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4.2 Using the appliance
4.2.1 Filling the tank with oil
First of all, check that the drain valve is closed (item 5 in Fig. 1 further above).
Fill the tanks with good quality deep-frying oil up to the maximum level mark (see Fig.
2). To find out tank capacities, refer to the “Technical specifications table” at the end of
this manual.
Fig. 2
Use liquid deep-frying oil only.
If you should use solid fat to fry, melt it in a separate pan before using it to avoid overheating the heat exchanger, which could result in a fire hazard.
During normal operation, oil level should always be kept between the maximum and minimum level marks.
It is dangerous to use the deep fat fryer when oil has dropped below the minimum level
because this may pose a fire hazard.
To find out the amount of oil you need to add to reach the maximum level when oil is at
the minimum level, refer to the “Technical specifications table” at the end of this manual.
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4.2.2 Lighting the pilot flame
Push the knob and turn it towards the left to the position shown as item 11 in Fig. 3. Press
and hold down the knob and at the same time push the ignition button (item 2 in Fig. 1).
After lighting the pilot flame, hold the knob down for 15-20 seconds to allow the thermocouple to heat. If the pilot flame goes out, repeat the lighting process.
Proper pilot flame lighting can be checked through the viewing hole provided for that purpose (item 4 in Fig. 1 further above).
Fig. 3
10. OFF position
11. Pilot flame lighting position
12-13. Temperature control range
4.2.3 Lighting the main tank burner
To light the main burner, exercise a slight pressure and turn the knob to the position corresponding to the desired temperature (item 12-13 in Fig. 3). Oil temperature will be kept
at the set value by means of a thermostat that automatically turns the main burner on and
off.
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4.2.4 Frying
Prior to frying, remove as much moisture as possible from the foodstuffs with a twofold
purpose: to prevent oil from overflowing due to foam build-up and to avoid excessive hot
oil splashes. Total weight of product to be cooked should not exceed 1.5 kg in 10-litre
tanks (models 73) and 2.5 kg in 15-litre tanks (models 72 and 74).
• Use the thermostat to set the desired cooking temperature; the ideal temperature is
180°C (356°F).
• Place the products into the basket; fill the basket to 1/3 or 1/2 (maximum load) of
its full capacity.
• Shake frozen products well before dipping them into the oil.
• Lower the basket into the oil.
• When product is ready, lift the basket and hang it from the basket support to allow
excess oil to drip away.
Always monitor oil quality during operation. Overused oil can be recognized by its typical
dark colour, viscosity and tendency to smoke even at low temperatures.
Never leave the appliance unattended while in use.
4.2.5 Switching off the appliance
To turn off the main burner, turn the knob towards the right to the position shown by item
11 in Fig. 3: only the pilot flame will remain lit. Exercise a slight pressure and turn the
knob to the position shown as item 10 to extinguish the pilot flame too.
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4.2.6 Safety thermostat
This appliance is equipped with a safety thermostat. Should oil temperature exceed the
maximum value, i.e. 230°C (446°F), gas flow will be automatically shut off to prevent oil
from overheating to such an extent that there may be a fire hazard or that poisonous fumes
may be produced. This is a safety feature that protects the appliance when a component
breaks down or the fryer is used against the instructions (too little oil in the tank, using
solid fat without melting it first, using oil that is dirty and/or too old).
If the safety thermostat trips, proceed as follows:
1. wait for a few minutes so that oil temperature drops below 180°C (356°F);
2. reset the safety thermostat as follows:
• open the doors;
• press the small red reset button until you hear a metal click;
Fig. 4
3. filter or change used oil or top up oil to the maximum level mark;
4. switch on the appliance.
If the safety thermostat trips again, call service.
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4.2.7 Emptying the tank
Empty the tank every day to clean it and to filter oil with the purpose of removing any
frying residues. Give utmost attention to this operation, which should not be carried out
before oil temperature has dropped to 100°C (212°F).
Empty the tank as follows:
1. insert the drain pipe (item 15 in Fig. 5) into the drain valve and turn the pipe to lock
it;
2. place either a container with a capacity of at least 20 litres or the oil drain pan supplied as accessory, under the drain pipe;
3. turn the lever (item 16) to open the valve.
Fig. 5
15. drain pipe
16. lever to open drain valve
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4.3 After-use care
4.3.1 Cleaning
Before cleaning, turn off the appliance and shut off gas supply upstream of it.
Wait until the deep fat fryer has cooled down before you start cleaning it.
Drain all oil from the tank, see chapter "Emptying the tank" further above.
General information
The main causes for stainless steel wear or corrosion are:
• using abrasive or acid detergents
, especially chlorine-based products such as hydrochloric acid or sodium hypochlorite (bleach). Therefore, before buying a cleaning product, make sure it does not corrode stainless steel (see also paragraph
"Routine cleaning" below);
• stagnation of ferrous deposits
(such as those created by rust dissolved in the water
flowing through the piping, especially after the appliance has remained idle for
some time). Therefore, avoid such stagnation. Do not use wire wool pads to remove the most stubborn food residues. Use, rather, pads or spatulas made of stainless steel or softer, non-ferrous materials;
• stagnation of substances having acid components
such as vinegar, lemon juice,
sauces, salt, etc. Avoid prolonged contact of the stainless steel parts of the appliance with those substances. The evaporation of saline solutions over the surfaces
of the appliance is particularly harmful to them.
Routine cleaning
Cleaning the appliance thoroughly on a daily basis is the key to keep it in perfect working
condition and prolonging its life. Clean the appliance with a damp cloth using water and
soap or detergents, provided that they are not acid or abrasive as discussed further above.
Such detergents should not even be used to wash the floor near the appliance, as their
fumes may deposit on the steel surfaces and damage them. If the deep fat fryer is very
dirty, use a Scotch-Brite
TM
type synthetic scrub sponge. Rinse it off with clean water and
wipe it dry with a clean cloth. Do not rub the appliance with steel wool pads as they could
leave rust stains. For the same reason, avoid touching the appliance with ferrous objects.
In order to prevent corrosion spots from forming, ensure that any salt residues are carefully removed from the tank’s sides and bottom.
Never use direct water jets to clean the appliance because this could result in water entering into it and damaging it.
Stains and abrasions on the steel surface
Scratches and dark stains may be smoothed or removed using stainless steel wool pads or
synthetic abrasive sponges, which should always be rubbed in the same direction as the
satin finish.
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Operating instructions
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Rust
If you need to remove rust stains, contact manufacturers of industrial detergents to find a
suitable product. Industrial descaling products can also be used to that end. After using
the descaler and rinsing off the appliance with clean water, an alkaline detergent may be
required to neutralize any acid compounds left on the surface.
4.3.2 Idle period
If the appliance will remain idle for a certain period of time, clean it and wipe it dry first,
and then apply a film of a suitable product (such as vaseline oil spray or similar products)
to protect it.
Turn off the gas shutoff valve fitted upstream of the appliance.
4.3.3 Periodic maintenance
Only qualified personnel are allowed to carry out service and maintenance operations.
The following maintenance operation should be carried out at least once a year:
• checking for proper operation of all control and safety devices;
• checking combustion, i.e.:
1. ignition;
2. combustion safety;
3. checking for proper operation throughout the ON-OFF-ON control range;
We recommend signing a service agreement providing for at least one check-up a year.
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5. Installation
5.1 General information
The manufacturer cannot be held liable for any injuries to persons or damage to property
resulting from installation errors or from inappropriate use of the appliance and is not responsible for any faults caused by defective installation. In such cases the warranty shall
be null and void.
Installation, maintenance, connection to gas supply and start-up should all be performed
by an authorised installer who must ensure compliance with all applicable safety regulations in force in the location where the appliance is being installed.
5.1.1 Regulatory installation conditions
We remind you that all appliances installed in public assembly buildings must meet the
requirements specified below. The appliance must be both installed and serviced in compliance with all applicable rules and legal regulations in force, namely:
• safety regulations on fire hazard and panic in public assembly buildings.
• general regulations applicable to all appliances;
• systems burning combustible gas and liquefied hydrocarbons.
Then, follow the specific regulations according to the type of gas being used.
• heating, ventilation, refrigeration, air conditioning, and generation of steam and
hot water for sanitary use;
• installation of foodservice cooking appliances;
• specific regulations applicable to each type of public assembly building (hospitals,
shops, etc.).
5.2 Exhausting fumes
The appliance should be installed in a well-ventilated area, if possible under an exhaust
hood, in compliance with all applicable regulations in force. This will ensure that all burnt
gases produced during the combustion process are completely exhausted. The amount of
air required for combustion is shown in the “Technical specifications table” at the end of
this manual, under "Air required for combustion".
In compliance with applicable installation regulations in force, our appliances belong to
the type shown under "Construction type" in the "Technical specifications table".
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5.3 Possible environmental interference
If the appliance is installed with its sides next to flammable walls (made of wood or similar materials) or to heat-sensitive walls (made of plasterboard or similar materials), suitable protective measures should be taken to keep such walls undamaged. Either apply a
coating over the wall to insulate it from radiative heat or keep a minimum clearance of
100 mm (4") from the sides and back of the appliance.
5.4 Storage
If the appliance is stored in a warehouse where room temperature is below 0°C (32°F), it
should be warmed up to at least +10°C (50°F) before switching it on.
5.5 Unpacking the appliance
Prior to installation, remove all packaging materials from the deep fat fryer. Some parts
are wrapped in adhesive film, which should be thoroughly removed. Remove any glue
traces left on the surfaces of the appliance using a suitable non-flammable solvent. Absolutely avoid using abrasive substances.
5.6 Disposing of packaging materials
All packaging materials should be disposed of in compliance with the local regulations in
force where the appliance is installed. Packaging materials should be separated according
to their types and delivered to specific collection sites. Please abide by environmental protection regulations.
5.7 Positioning
Level the appliance using a bubble level. Small adjustments can be done with the help of
the adjustable feet.
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5.8 Connecting gas supply
This appliance is designed to burn natural and liquid gas. To find out the category to
which this appliance belongs in the country where it is installed, please refer to the table
below.
Table 1: gas categories and pressure values
COUNTRY
APPLIANCE
CATEGORY
GAS
RATED
PRESSURE
(mbar)
MINIMUM
PRESSURE
(mbar)
MAXIMUM
PRESSURE
(mbar)
Belgium
France
II2E+3+
G20201725
G25251730
G30282535
G31372545
Spain
Great Britain
Ireland
Greece
II2H3+
G20201725
G30282535
G31372545
Italy
Italian Switzerland
Portugal
II2H3+
G20201725
G30302535
G31372545
Austria
German Switzerland
II2H3B/P
G20201725
G30
50 42.5 57.5
G31
Germany II2ELL3B/P
G20
20 17 25
G25
G30
50 42.5 57.5
G31
Finland II2H3B/P
G20201725
G30
30 25 35
G31
Denmark II2H3B/P
G20201725
G30
30 25 35
G31
Sweden II2H3B/P
G20201725
G30
30 25 35
G31
Luxembourg I2E G20 20 17 25
Netherlands II2L3B/P
G25252030
G30
30 25 35
G31
Norway I3B/P
G30
30 25 35
G31
Hungary II2HS3B/P
G20
25 20 33
G25.1
G30
30 25 35
G31
Czech Republic II2H3B/P
G20201725
G30
30 25 35
G31
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The appliance should be connected to the gas supply by means of metal tubing --either
rigid or flexible-- having a proportionate diameter (see “Technical specification table” at
the end of this manual). When joining pipe fittings, never use oakum or Teflon as their
residues could get to the valve/regulator and jeopardise its operation. Instead, interpose a
seal gasket suitable for use in gas systems. Do not forget to fit a shutoff valve on the gas
supply line upstream of the appliance, which should be closed whenever the appliance is
not in operation. Operating pressure values are shown on the rating plate and in the previous "Table 1: gas categories and pressure values"
Once connection to the gas supply is completed, check for leaks at joints and pipe fittings;
to do so, use soapy water or a specific leak detector (spray).
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5.8.1 Checking supply pressure after installation
Gas supply pressure can be measured with a liquid-filled pressure gauge (for example, a
U-shaped pressure gauge, minimum subdivision 0.1 mbar) or a digital pressure gauge.
Proceed as follows:
• remove the knobs;
• loosen all screws on the guide collars (item 22 in Fig. 8);
• remove the screws shown on item 23 from the control panel;
Fig. 8
22. Guide collar
23. Control panel fixing screws
• remove the control panel as shown in Fig. 9 below;
Fig. 9
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• unscrew the screw (item 24 in Fig. 10) on the pressure port (item 25);
Fig. 10
24. Sealing screw
25. Pressure port
• place the pressure gauge;
• switch on the appliance as discussed in the user’s manual;
• check supply pressure;
• if the measured pressure value is within the range shown in "Table 1: gas catego-
ries and pressure values" further above, the appliance can be started up. Otherwise, contact the gas utility company
• remove the pressure gauge;
• replace the sealing screw (item 24 in Fig. 10);
• check for leaks (see chapter "Connecting gas supply" further above);
• replace the control panel and make sure the guide collar is in the position shown
in Fig. 11;
Fig. 11
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5.8.2 Gas technical specifications
The appliance should be started up at its rated power using the nozzle shown in the "Table
2: burner specifications" below. All the nozzles required are provided in a small bag to-
gether with the appliance. The nozzles of the main burners are marked in hundredths of
mm, while those of pilot flames have a reference number.
Table 2: burner specifications
72/02
FRG
73/02
FRG
74/02
FRG
Rated power (kW) 13 9.5 + 9.5 13 + 13
Minimum output (kW)
Natural gas consumption (m³/h)
G20 1.4 2.0 2.8
G25 1.6 2.3 3.2
G25.1 1.6 2.3 3.2
Liquid gas consumption (kg/h) 1.0 1.5 2.0
Town gas consumption (m³/h)
G110
G120
G20 20mbar
Rated pressure (mbar) 20
Reduced pressure (mbar), minimum
Nozzles (1/100 mm)
Pilot flame 27·2 27·2 x 2 27·2 x 2
Max. 210 x 2 170 x 4 210 x 4
Min.
Primary air distance (mm) 20
G25 20mbar
Rated pressure (mbar) 25
Reduced pressure (mbar), minimum 13.5 13.5
Nozzles (1/100 mm)
Pilot flame 27·2 27·2 x 2 27·2 x 2
Max. 200 x 2 160 x 4 200 x 4
Min.
Primary air distance (mm) 20 20 20
G25.1 25mbar
Rated pressure (mbar) 25
Reduced pressure (mbar), minimum 16 16
Nozzles (1/100 mm)
Pilot flame 38 38 x 2 38 x 2
Max. 230 x 2 195 x 4 230 x 4
Min.
Primary air distance (mm) 20 20 20
G30/31 28/37 mbar
G30/31 30 mbar
G30/31 30/37 mbar
Rated pressure (mbar) 28 / 30 / 37
Reduced pressure (mbar), minimum
Nozzles (1/100 mm)
Pilot flame 16·2 16·2 x 2 16·2 x 2
Max. 130 x 2 110 x 4 130 x 4
Min.
Primary air distance (mm) 10 7 10
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G30/31 50 mbar
Rated pressure (mbar) 50
Reduced pressure (mbar), minimum
Nozzles (1/100 mm)
Pilot flame 16·2 16·2 x 2 16·2 x 2
Max. 115 x 2 100 x 4 115 x 4
Min.
Primary air distance (mm) 5
Table 2: burner specifications
72/02
FRG
73/02
FRG
74/02
FRG
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5.8.3 Checking operation
1. Start up the appliance as described in the user’s manual.
2. Check for gas leaks.
3. Check flame stability throughout the whole ON-OFF-ON temperature control
range.
4. Check the lighting process along the entire main burner. Check that flames are
even.
5. Check for proper operation of the pilot flame. If the pilot flame has been properly
adjusted, the flame will wrap around the thermocouple and have a uniform appearance. Otherwise, check that the appropriate nozzle has been fitted.
6. Check that burnt gases come out from the exhausting pipes in a regular manner.
7. Check that there is a good inflow of fresh air.
5.9 Rating plate
The rating plate showing the specifications of the corresponding model is applied in the
position shown in the installation and connection drawings and includes the data listed
below:
Manufacturer:
Model: (see front page)
Serial number:
Year of manufacture:
Category: (see "Technical specifications table")
Heating power: (see "Technical specifications table")
Natural gas consumption: (see "Technical specifications table")
Liquid gas consumption: (see "Technical specifications table")
Supply pressure :
natural gases: G20 (see "Table of gas categories and pressure values" fur-
ther above)
liquid gases (butane/propane): G30/G31 (see "Table of gas categories and pressure values"fur-
ther above)
town gas: G110/G120 (see "Table of gas categories and pressure values"fur-
ther above)
Gas inlet pipe size: (see "Technical specifications table")
Supply voltage: (see the label on the packaging and on the appliance)
Appliance adjusted to use:
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6. Adjustment instructions
6.1 Converting the appliance to burn a different type of gas
To convert (for example) from natural gas to liquid gas, you need to change the nozzles
of main and pilot burners; the appropriate nozzles are shown in "Table 2: burner specifi-
cations" further above.
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6.1.1 Replacing main burner nozzles
1. Remove the screw shown as item 28 in Fig. 13 and then remove the air sleeve;
Fig. 13
28. Primary air adjusting screw
29. Primary air sleeve
2. remove the nozzle (item 30 in Fig. 14) and replace it with the nozzle shown in "Ta-
ble 2: burner specifications";
Fig. 14
30. Burner nozzle
After replacing the nozzle, you should adjust primary air (see the following chapter "Ad-
justing primary air").
There is no need to adjust the minimum output as thermostat operation is of the "ONOFF" type.
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6.1.2 Adjusting primary air
To adjust primary air (item 31 in Fig. 15), loosen the screw shown in item 32 and move
the sleeve until you obtain the values indicated in "Table 2: burner specifications".
Fig. 15
31. Primary air distance
32. Primary air adjusting screw
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6.1.3 Replacing pilot burner nozzle
The pilot burner has fixed nozzles and fixed air sleeve. To operate the appliance with other
types of gas, you need to replace the nozzle (item 35 in Fig. 18) with the nozzle shown in
"Table 2: burner specifications" according to the type of gas used. You do not need to adjust primary air.
1. Remove the drain valve closing lever;
2. remove the lower flue box cover by unscrewing the several front screws;
Fig. 16
3. temporarily remove the ignition plug by unscrewing the nut;
Fig. 17
34. Ignition plug
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4. replace the pilot burner nozzle with a suitable one by unscrewing the nut shown as
item 35 in Fig. 18 and using a fixed spanner (wrench) to counterbalance torsion;
Fig. 18
35. Pilot burner nozzle
When nozzle replacement is completed, check for proper operation of the appliance (see
chapter "Checking operation" at the end of the previous section "Installation").
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7. Troubleshooting
This appliance contains no parts that can be repaired by the user. Maintenance should be
carried out by an authorized technician.
TROUBLE POSSIBLE CAUSES WHAT TO DO
FOR THE USER FOR THE MAINTENANCE
TECHNICIAN
Pilot flame won’t
light:
the ignition plug is not
securely fixed, or the
connection with the cable is wrong;
check the connection;
piezoelectric ignition
device faulty;
replace it;
ignition plug insulator
damaged;
replace it;
pressure drop in gas
supply pipe;
contact the gas utility company;
clogged nozzle; clean the pilot flame nozzle or re-
place it (see chapter "Replacing pilot burner nozzle" in section
"Adjustment instructions");
gas valve faulty; replace the gas valve (see chapter
"Replacing the gas valve" in section "Service").
After releasing the
knob, the pilot flame
goes out:
the thermocouple is not
sufficiently heated by
the pilot flame;
repeat the ignition procedure;
thermocouple faulty; replace it;
gas valve faulty; replace the gas valve (see chapter
"Replacing the gas valve" in section "Service").
safety thermostat has
tripped;
reset the safety thermostat (see
chapter "Safety thermostat" in
section "Operating instruc-
tions").
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TROUBLE POSSIBLE CAUSES WHAT TO DO
FOR THE USER FOR THE MAINTENANCE
TECHNICIAN
Pilot flame stays lit,
but main burner
won’t light:
pressure drop in gas
pipe;
contact the gas utility company;
burner nozzle is
clogged;
clean the burner nozzle or replace it
(see chapter "Replacing main burner nozzles" in section "Adjustment
instructions");
gas valve faulty; replace the gas valve (see chapter
"Replacing the gas valve" in section "Service").
The safety thermostat
trips:
oil in the tank has
dropped below the minimum level;
top the oil up to the rated level;
operating thermostat
damaged or setting
wrong;
replace the gas valve (see chapter
"Replacing the gas valve" in section "Service").
Oil temperature can’t
be adjusted:
operating thermostat
damaged or setting
wrong;
replace the gas valve (see chapter
"Replacing the gas valve" in section "Service").
Too much foam
builds up while frying:
product to be fried has
high moisture content;
dry it (see chapter "Frying" in
section "Operating instruc-
tions").
old oil (overused); change it (see chapter "Frying"
in section "Operating instruc-
tions");
product quantity exceeds the recommended
load.
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8. Spare parts
Outer parts.................................................................... 36
Internal parts................................................................ 38
Pilot flame ..................................................................... 40
Valve and stuffing box assembly................................. 42
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8.1 Voltage codes
8.2 Product codes
Table 3:
Voltage code Voltage
A 3/N/PE~400/230V 50Hz
B ~250V 16A 50Hz
C 3/N/PE~380/220V 50Hz
D 3/PE~200V 50-60Hz
F 2/PE 220-240V 50Hz
G 3/N/PE~415/240V 50Hz
H 3/PE~230V 50Hz
I 3/PE~220V 60Hz
J 3/PE~380 50Hz
K 3/PE~400V 50Hz
L 3/PE~415V 50Hz
M 3/PE~440V 60Hz
N 3/PE~460V 60Hz
O 3/PE~480V 60Hz
P 1/N/PE~220-240V 50Hz
R 2/PE~220-230V 60Hz
S 3/N/PE~400/230V 60Hz
T 3/PE~230V 60Hz
U 1/N/PE~100V 50-60Hz
Table 4:
Product code Full name
Type codes
G all gas models
Model codes
72G 72/02FRG
73G 73/02FRG
74G 74/02FRG
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ID Code Type Model Voltage Description
MODULE:Outer parts
10 2519500 G Foot
20 9000619 G Drain pipe
30 2541380 G 73G, 74G Lower right door hinge
40 2541400 G 73G, 74G Upper right door hinge
50 2541410 G Upper left door hinge
60 2541390 G Lower left door hinge
70 A044490 G Magnet
80 2599201 G Knob
90 A041105 G Piezoelectric ignition
100 9000337 G 73G Basket
100 9000338 G 72G,74G Basket
110 9000363 G Basket holder
120 8222510 G Handle
130 9550320 G Lid
140 9562010 G 72G Work top
140 9562020 G 73G Work top
140 9562030 G 74G Work top
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ID Code Type Model Voltage Description
MODULE:Internal parts
200 2591800 G 72G, 74G Burner nozzle set IT (suitable for two burners)
G 72G, 74G Nozzle L 130
G 72G, 74G Nozzle L 210
G 72G, 74G Nozzle L 230
200 2591801 G 72G, 74G Burner nozzle set DE (suitable for two burners)
G 72G, 74G Nozzle L 115
G 72G, 74G Nozzle L 210
G 72G, 74G Nozzle L 230
G 72G, 74G Nozzle L 245
200 2591810 G 73G Burner nozzle set IT (suitable for two burners)
G 73G Nozzle L 110
G 73G Nozzle L 170
G 73G Nozzle L 185
200 2591811 G 73G Burner nozzle set DE (suitable for two burners)
G 73G Nozzle L 100
G 73G Nozzle L 170
G 73G Nozzle L 185
G73G Nozzle L 195
210 2519430 G Burner
220 9000610 G Pipe
230 9000612 G 73G Pipe
230 9000611 G 72G, 74G Pipe
240 A016200 G Nut
250 A016300 G Ogive
260 A049401 G Safety thermostat
270 A023020 G Drain valve
280 8217550 G Ring
To find out the exact match between nozzles and gas type, refer to chapter "Gas technical specifications" in
the "Installation" section
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ID Code Type Model Voltage Description
MODULE:Pilot flame
320 A013220 G Pilot burner
330 A013240 G Nozzle 16•2 LPG
330 2510332 G Nozzle 38.1
330 A013230 G Nozzle 27•2 natural gas
340 A016900 G Ogive
350 A017000 G Nut
360 A013302 G Ignition electrode
370 2510698 G Ignition cable
380 A011909 G Thermocouple
390 9000615 G Pipe
To find out the exact match between nozzles and gas type, refer to chapter "Gas technical specifi-
cations" in the "Installation" section
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ID Code Type Model Voltage Description
MODULE:Valve and stuffing box assembly
440 8219900 * G Valve
450 A011608 G Pipe fitting
460 A011625 G Ogive
470 A011620 G Pipe fitting
480 A038803 G Washer for packing gland
490 A038801 G Nut
500 A038804 G Metal gasket
*When replacing the valve (code 8219900), please remember to order the metal gasket (code
A038804) as well
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9. Technical specifications
Installation and connection drawings......................... 47
Technical specifications table...................................... 50
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Installation drawing 72/02FRG
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Installation drawing 73/02FRG
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Installation drawing 74/02FRG
A Gas inlet 1/2" ISO 7-1
C Distance between feet
D Tank dimensions
E Rating plate
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Table 5: Technical specifications table
Item Model Type Voltage Specification
Overall dimensions (WxLxH) 72E, 72G 400x700x860/900 mm
Overall dimensions (WxLxH) 73E, 73G 600x700x860/900 mm
Overall dimensions (WxLxH) 74E, 74G 800x700x860/900 mm
Volume with package 72E, 72G 0.43 m³
Volume with package 73E, 73G 0.62 m³
Volume with package 74E, 74G 0.8 m³
Total weight G 72G 71 Kg
Total weight G 73G 91 Kg
Total weight G 74G 123 Kg
Number and capacity of basins 72E, 72G 1 tank, 15 liters
Number and capacity of basins 73E, 73G 2 tanks, 10 liters
Number and capacity of basins 74E, 74G 2 tanks, 15 liters
Difference between minimum and maximum level 72E, 72G, 74E, 74G 2.5 liters
Difference between minimum and maximum level 73E, 73G 1 liters
Baskets dimensions 72E, 72G 242x320x120 mm
Baskets dimensions 73E, 73G 157x320x120 mm x 2 pz.
Baskets dimensions 74E, 74G 242x320x120 mm x 2 pz.
Tank size 72E, 72G 270 x 378 mm
Tank size 73E, 73G 185 x 378 mm x 2 pz.
Tank size 74E, 74G 270 x 378 mm x 2 pz.
Maximum quantity of food per tank 72E, 72G, 74E, 74G 2.5 Kg
Maximum quantity of food per tank 73E, 73G 1.5 Kg
Rated power G 72G 13 kW
Rated power G 73G 9.5 + 9.5 kW
Rated power G 74G 13 + 13 kW
Gas inlet G 1/2" ISO 7-1
Air requirement for combustion G 72G 26 m³/h
Air requirement for combustion G 73G 38 m³/h
Air requirement for combustion G 74G 52 m³/h
Construction type Italy G 72G A
Construction type Italy G 73G, 74G B11
Construction type Germany G B11
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Construction type valid for other countries G A
Oil temperature range 110°-190° C (230°-374° F)
Table 5: Technical specifications table
Item Model Type Voltage Specification
NBG_0700FR_uen11.pdf
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