Olis 72/02FRG User manual

GAS DEEP FAT FRYERS
700 - Series
Models: 72/02FRG, 73/02FRG, 74/02FRG
Installation and Operation Manual
S/N: Rev.: 1.1

23.3.2005 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

23.3.2005 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 manufactur-
er and in compliance with all applicable local regulations. This appliance should be con-
nected to the power supply by qualified personnel only.
All personnel in charge of using this appliance should be specifically trained in its opera-
tion.
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 manufac-
turer 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 instruc-
tions 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. There-
fore, the concerned part should only be removed by qualified personnel.

23.3.2005 Rev. 1.0
General information
2
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 or-
dering new manuals it is essential to quote the serial number shown on the rating plate.

23.3.2005 Rev. 1.0
Safety
3
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.

23.3.2005 Rev. 1.0
Safety
4
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 haz-
ardous 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.

23.3.2005 Rev. 1.0
Functional description
5
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.

23.3.2005 Rev. 1.0
Functional description
6
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

23.3.2005 Rev. 1.0
Operating instructions
7
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 espe-
cially 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.

23.3.2005 Rev. 1.0
Operating instructions
8
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 over-
heating the heat exchanger, which could result in a fire hazard.
During normal operation, oil level should always be kept between the maximum and min-
imum 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.

23.3.2005 Rev. 1.0
Operating instructions
9
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 thermo-
couple 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 pur-
pose (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 cor-
responding 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.

23.3.2005 Rev. 1.0
Operating instructions
10
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.

23.3.2005 Rev. 1.0
Operating instructions
11
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.

23.3.2005 Rev. 1.0
Operating instructions
12
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 sup-
plied 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

23.3.2005 Rev. 1.0
Operating instructions
13
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 hy-
drochloric acid or sodium hypochlorite (bleach). Therefore, before buying a clean-
ing 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 re-
move the most stubborn food residues. Use, rather, pads or spatulas made of stain-
less 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 appli-
ance 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-BriteTM 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 care-
fully removed from the tank’s sides and bottom.
Never use direct water jets to clean the appliance because this could result in water enter-
ing 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.

23.3.2005 Rev. 1.0
Operating instructions
14
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.

23.3.2005 Rev. 1.0
Installation
15
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 re-
sponsible 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 regula-
tions 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 com-
pliance 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".

23.3.2005 Rev. 1.0
Installation
16
5.3 Possible environmental interference
If the appliance is installed with its sides next to flammable walls (made of wood or sim-
ilar materials) or to heat-sensitive walls (made of plasterboard or similar materials), suit-
able 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. Abso-
lutely 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 pro-
tection regulations.
5.7 Positioning
Level the appliance using a bubble level. Small adjustments can be done with the help of
the adjustable feet.