GIGA CFG15, CFG15D, KFG15D, KFG15, KFG20 Operating Instructions Manual

041_03

Installation, operating and
maintenance instructions

01/2006

GAS FRYERS

© COPYRIGHT 2004 GIGA GRANDI CUCINE SRL

CFG15 · CFG15D
KFG15 · KFG15D
KFG20 · KFG20D
OPFG15 · OPFG20
OPFG15D · OPFG20D

Models and dimensions page 3

Data of appliances 6

Technical data 6-7

Operating instructions 8

Construction, equipment installed

and safety devices 8

Assembly 8

Location 8

Legal and technical requisites 8

Installation 8

Installation procedure 8

Gas connection 8

Gas venting 8

Commissioning the appliance 9

Before commissioning the appliance 9

Start-up 9

Testing the power rating 9

Checking input pressure 9

Checking power rating using

the volumetric method 9

Checking power rating when using

LP gas 10

Checking the pilot light 10

Checking the primary air 10

Checking the functions 10

Note for the installer page 10

Running the appliance on other types

of gas 10

Replacing the main burner nozzle 10

Replacing the pilot burner nozzle 10

Maintenance 10

Replacing parts 11

Gas valve 11

Safety thermostat 11

Burner 11

Thermocouple 11

Ignition plung 11

Electrical components 11

Using the appliance 12

Preparation for use 12

Filling the tank 12

Turning on and off 12

Lighting the pilot burner 12

Lighting the main burner 12

Turning off 12

Emptying the tank 13

Turning off in an emergency 13

What to do if something goes wrong or if

not using the appliance for a long time 13

Taking care of the appliance

frequency of maintenance 13

Warning 14

INDEX

041-03 - Gas fryers

2

041-03 - Gas fryers

3

Dimensions

875

1086

52.5 52.5

13.5

1

100

2

140

465

220 21150

295

G

400

280

2

700

G

TS

50

875

1896

52.5 52.5

13.5

1

100

2

140

465

220 50

695

G

800

280

2

700

G

TS TS

T

S

TS TS

S

T

CFG15

CFG15D

G
TS
T
S

1/2” gas connector
Safety thermostat
Technical data
Oil drain

041-03 - Gas fryers

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Dimensions

875 185

1060

55 55

21

100

2

140

465

210 21560

290

TS

G

400

310

2

900

G

310

2

900

G

TS TS TS

800

875

1850

55 55

21

290

TS

100

2

140

465

210 60

G

50

T

S

S

T

KFG15
KFG20

KFG15D
KFG20D

G
TS
T
S

3/4” gas connector
Safety thermostat
Technical data
Oil drain

041-03 - Gas fryers

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Dimensions

400

310

2

900

G

310

2

900

G

TS TS TS

800

530

TS

210

OPFG15
OPFG20

OPFG15D
OPFG20D

G
TS
T
S

3/4” gas connector
Safety thermostat
Technical data
Oil drain

210 21560

TS

530

T

T

S

S

S

041-03 - Gas fryers

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Model

CFG15

CFG15D

KFG15

KFG15D

KFG20

KFG20D

OPFG15

OPFG15D

OPFG20

OPFG20D

Description

Gas deep fat fryer - 1 tank

Gas deep fat fryer - 2 tanks

Gas deep fat fryer - 1 tank - oil container whit filter

Gas deep fat fryer - 2 tanks - 2 oil containers whit filter

Gas deep fat fryer - 1 tank - oil container whit filter

Gas deep fat fryer - 2 tanks - 2 oil containers whit filter

Gas deep fat fryer - 1 tank

Gas deep fat fryer - 2 tanks

Gas deep fat fryer - 1 tank

Gas deep fat fryer - 2 tanks

Dimensions

(LxPxH+H1) - mm.

400 x 700 x 875 (1085)

800 x 700 x 875 (1085)

400 x 900 x 875 (1090)

800 x 900 x 875 (1090)

400 x 900 x 875 (1090)

800 x 900 x 875 (1090)

400 x 900 x 530

800 x 900 x 530

400 x 900 x 530

800 x 900 x 530

Basins Nr.

1

2

1

2

1

2

1

2

1

2

Capacity (Lt.)

15

15+15

15

15+15

20

20+20

15

15+15

20

20+20

Gas connector

1/2" ISO R228

1/2" ISO R228

3/4" ISO R228

3/4" ISO R228

3/4" ISO R228

3/4" ISO R228

3/4" ISO R228

3/4" ISO R228

3/4" ISO R228

3/4" ISO R228

N.

51BQ2905

51BQ2905

51BQ2905

51BQ2905

51BQ2905

51BQ2905

51BQ2905

51BQ2905

51BQ2905

51BQ2905

2 - CHARACTERISTICS OF THE APPLIANCES

The instructions contained in this manual apply to our Gas deep fat
fryer in the II2H3+ category (see table on page 7).
The data plate is located on the front of the appliance and on the

control panel. It contains all necessary reference data such as the
name of the manufacturer, input pressure, gas type setting, etc.

0051

TIPO/TYPE

CAT/KAT GAS/GAZ G30 G31 G20 G25

II2H3B/P P mbar 30 30 20 -

II2H3+ P mbar 30 37 20--

II2H3+ P mbar 28 37 20 -

25II2L3B/P P mbar 30 30

II2ELL3B/P P mbar 50 50 20 20

II2E+3+ P mbar 28 37 20 25

II2H3B/P P mbar 50 50 20 -

I2E P mbar - - 20 -

--II2H3B/P P mbar 30 30

II2H3+ P mbar 28 37 20 -

--

--

I3B/P P mbar 30 30

I3+ P mbar 28 37

SE FI DK CZ SK SI

IT CH PT

ES IE GB GR

NL

DE

FR BE

AT CH

LU

EE LV LT

EE LV LT

NO MT CY IS HU

CY

MOD.

MOD.

ART.

N.

N.

Qn kW

m3/h

MADE IN ITALY

Predisposto a gas: - Gas preset: - Prevu pour gaz:

Eingestelt für Gas: - Preparado para gas: -

Geschuckt voor:

V AC kW Hz

THE APPLIANCE MUST BE CONNECTED IN COMPLIANCE WITH THE LAWS IN FORCE
AND INSTALLED IN A WELL-VENTILATED ROOM. READ THE INSTRUCTION MANUALS
BEFORE INSTALLING AND USING THE APPLIANCE.
THE APPLIANCE MUST BE INSTALLED BY QUALIFIED PERSONNEL.

G30/G31 28/37 mbar

G20 20 mbar

3 - TECHNICAL DATA

041-03 - Gas fryers

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Primary air distance “A”

Methane gas G20

Liquid gas G30/G31

TABLE 1

Model

Category

Construction type

Air necessary for combustion

Nominal thermal power

Minimum thermal power

Connection pressure

Methane gas 2H

Liquid gas 3+

Gas connection values

Methane gas 2H

Liquid gas 3+

Nozzles Ø 1/100 mm

Main burner

G20

G30/G31

(HuB = 9.45 kWh/m

3

) m3/h

(HuB = 12.87 kWh/kg) kg/h

Nominal capacity

-

Nominal capacity

-

G20

G30/31

20 mbar

28/37 mbar

II2H3+

A

m

3

/h

kW

kW

No. of nozzles, pilot burner

G20

G30/G31

2

2

0.952

0.655

2 x 160

-

2 x 110

-

Adjustable

20

2

2

1.904

1.310

4 x 160

-

4 x 110

-

Adjustable

2 x 20

2

2

1.270

0.873

2 x 185

-

2 x 120

-

Adjustable

20

2

2

2.540

1.746

4 x 185

-

4 x 120

-

Adjustable

2 x 20

CFG15

KFG15

OPFG15

A

25

9.0

-

CFG15D

KFG15D

OPFG15D

B11

50

18.0

-

KFG20

OPFG20

A

30

12.0

-

KFG20D

OPFG20D

B11

60

24.0

-

041-03 - Gas fryers

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Construction, equipment installed and
safety devices

Robust steel frame, with 4 legs (adjustable in height).
18/10 chrome-nickel steel outer panelling and tanks.
The oil is heated by means of stainless burners (2 per
tank), built to withstand thermomechanical stress.
The pilot burner has has adjustable injector.
The combustion chamber and flues are made of electro­galvanised steel sheeting.
The temperature is regulated by a static thermal valve
which regulates ignition and extinguishing of the burners.
The deep fryers are fitted with a safety thermostat; should
the oil temperature exceed the limit value, the gas flow is
automatically cut off.
The equipment type B, if not positioned under an exhaust
hood, requires a windproof device, type MITRACF and/or
MITRAKF.
This device should be fitted as per the instructions (see
“Gas venting”).

Attention!

Activation of the safety thermostat means the applian­ce is not working properly; before using the appliance
again, call the service centre to carry out a careful
check of all functions.

ASSEMBLY

Location

The appliance should be installed in a well ventilated
room, and if possible under a range hood.
If possible, “A” type appliances should be placed under
an aspirator. Type “B” appliances must be fitted with an
anti-wind device.
The appliance can be installed on its own or alongside
other equipment.
If the appliance is to be installed near inflammable walls, a
minimum distance of 50 mm around the sides and back
should be allowed.
If this is impossible, take proper steps to ensure the instal­lation is safe, such as fitting tiles or heat-reflecting material
to the walls.
Before connecting up the appliance to the gas supply,
check on the data plate that the appliance is fitted for the
type of gas available.
If not, consult paragraph “Running the appliance on other
types of gas”, page 10.

Legal and technical requisites

During assembly, the following legal and technical re­quisites should be adhered to:

- relevant national legislation;

- local building and fire safety regulations;

- worksheet “Technical rules for installing gas”;

- worksheet “Technical rules for LP gas”;

- worksheet “Gas installations in industrial kitchens”;

- industrial injury legislation;

- local Gas Board regulations;

- current CEI regulations.

INSTALLATION

Assembly, installation and maintenance, i.e.: assembly,
connecting the gas supply, checking power rating, trans­forming or adapting the appliance to run on other types of
gas, and commissioning, must all be done by contractors
authorised by the local Gas Board in accordance with lo­cal and national legislation UNI-CIG 8723-7722-7723 law
46 and circular 68 with subsequent updates.
Before doing anything else, seek advice from your Gas
Board.

Installation procedure

To level the appliance correctly, adjust the height of the
four legs.

Gas connection

The R 1/2” gas off-take for models CFG15 - CFG15D and
R 3/4” for models KFG15 - KFG15D - KFG20 - KFG20D ­OPFG15 - OPFG15D - OPFG20 - OPFG20D on the ap­pliance can either be permanently fixed to the mains or
made detachable using a standard adaptor.
If flexible hose is used, it must be in stainless steel.
After completing connection, check for leaks using a spe­cial leak-detector spray.

Gas venting

For deep fryers of construction type “A”, connection to a
gas venting system is not required; for ventilation of the
premises where the appliance is installed, observe the
laws in force.
Fryers type B cannot function without the windproof device
if not positioned under an exhaust hood. Standard pipes
must be used for the flue gas outlet connection, according
to the procedures laid down by the laws in force and any
other local regulations.
Combusted gases must be evacuated:

a) by natural ascension to the outside through a chim­ney;
b) by mechanical extraction through a chimney to the
outside or directly outside;
c) through suction hoods.

Fit the standard anti-wind device as follows:

- Place part (A) on the appliance and fix with the relative

OPERATING INSTRUCTIONS

041-03 - Gas fryers

9

screws;

- Insert extension (B) onto the collector;

- Place part (C) on part (A) and fix with self-tapping
screws;

- Fit back element (D) onto part (A) and fix.

- connect the outlet (E) to the fume exhaust pipe.

COMMISSIONING THE APPLIANCE

Before commissioning the appliance

Before commissioning the appliance, remove the protec­tive wrapping.
Thoroughly clean the work-surface and the outside of the
appliance using lukewarm water and detergent.
With a damp cloth eliminate all traces of the rust-proofing
applied in the workshop then dry with a clean cloth.

Start-up

Before starting the appliance up, check that its specifi­cations (category and type of gas used) match those of
the family and group of the gas available locally.
If not, adapt the appliance to the gas family or group re­quired (see paragraph “Running the appliance on other
types of gas” page 10).
To start the appliance up, see the instructions for regular
use.

Testing the power rating

Use the specific nozzles for the rated output (see table 1
in assembly instructions).
The following are the operating pressure tolerances to ob­tain the nominal power according to the agreed nozzles:

- from 15 to 22.5 mbar for gases of the second family

- from 25 to 45 mbar for gases of the third family
(propane).

The appliance will not work outside the above pressure
thresholds.

If you wish to check the nominal capacity further, you
may do so using a gas meter according to the so-called
”volumetric method”.
As a rule, however, it is sufficient to check that the cor­rect nozzles are being used.

Checking input pressure (Fig. 2)

Input pressure should be measured using a gauge (e.g.
a gooseneck pipe, min. resolution 0.1 mbar).
Remove screw (19) from the pressure socket and con­nect it to the tube on the gauge; after measuring, the
screw should be retightened absolutely airtight (19).

Checking power rating using the
volumetric method

Using a gas meter and a chronometer, you can read the
volume of gas output per time unit.
The correct volume will be the value of “E” expressed in
litres per hour (It/hr) or litres per minute (It/min).
The following formula is used to calculate the value of
“E”:

Capacity should only be measured when the appliance
is at a standstill. The heat value can be obtained from
your local Gas Board.
To obtain the nominal capacity in relation to the nominal
pressure, consult table (1) (Gas Flow Setting).

Capacity

Heat value

E =

DC

A

B

E

500 mm

MIN

WARNING

It is not possible to adjust nominal capacity in advan­ce.

Checking power rating when using LP
gas

Check that the type of nozzles used match manufactu­rer's specifications.
Check that the output pressure regulator installed colla­terally to the plant conforms to the specifications laid
down in paragraph "Checking input pressure" page 8
(see data plate or measure the pressure).

Checking the pilot light

When correctly adjusted, the pilot light flame will com­pletely surround the thermocouple and will not flicker; if it
does, turn the pilot adjusting screw (30 - Fig. 1 - page

11).

Checking the primary air

The devices are provided with adjustment of the primary air.
Depending on the type of gas, position the washer at mea­surement “A” (Fig. 1) indicated in table 1.

Checking the functions

- Start the appliance in accordance with the
instructions;

- Check the gas tubes for leaks;

- Check that the flame on the main burner lights
properly and is correctly formed;

- Check that the pilot light is correctly regulated;

- Draw up a servicing and maintenance contract.

Note for the installer

- Explain and demonstrate to the user how the machine
works according to the instructions and hand him this
manual.

- Remind the user that any structural alterations to the
room housing the appliance may affect the combu­stion air supply. Once the alterations have been com­pleted, the appliance and its functions should be tho­roughly checked.

Running the appliance on other types
of gas

When changing to another type of gas, e.g. from natural
to LP, or to another gas group, consult the “TECHNICAL
DATA” table to determine the correct nozzles to use.
The nozzles for the main burners for different types of
gas, marked in 100ths of mm, are in a case supplied with
the appliance.
When the appliance has been transformed or adapted,
recheck its functions as described in paragraph
"Checking the functions" page 10.

Replacing the main burner nozzle
(Fig. 1)

To change the nozzle (28), remove the air adjustment (27)
loosening the screw (33), unscrew it from the nozzle hol­der using a 12 mm wrench and replace with a new one
(see “TECHNICAL DATA” table).
After fitting the nozzle, reset primary air distance “A”
(see “TECHNICAL DATA” table).

Adjusting the pilot burner (Fig. 1)

The pilot burner is readily accessible when the door is
opened.
Unscrew nut (34) and using a screwdriver adjust the by­pass. For use with LPG, the adjusting screw must be ful­ly screwed down. Tighten the nut, making sure the ga­sket has been inserted.

MAINTENANCE

Attention!

Before carrying out any maintenance or repair work,
disconnect the appliance from the mains.

The following maintenance programme should be car­ried out at least once a year:

- Check that all the safety and setting devices are
working properly;

- Check that the burners are working properly with re­gard to:

- ignition

- combustion safety;

- Check the functions of the appliance as described in
paragraph "Checking the functions", page 10;

- Check the gas venting path (make sure the gas is cor­rectly evacuated).

041-03 - Gas fryers

10

1

2

19

2

041-03 - Gas fryers

11

REPLACING PARTS

All parts must be replaced by authorised technicians
only!

To replace the following parts, remove the control panel
(after unscrewing its fixing screws). It is advisable to
empty the tank.

Gas valve (1 - Fig. 2)

Unscrew the gas pipes and thermocouple. Unscrew the
screws (2). Remove the bulb from the holder on the tank.
The valve may now be removed and replaced with a new
one.
Replace and screw down all parts in the correct order.

Safety thermostat (11 - Fig. 3)

Unscrew the lock nut and the nut fixing the bulb in the
tank, disconnect and insert the new part.

Burner (Fig. 1)

Unscrew nozzle (28) and nut (29). Loosen the screws (26)
fixing the burner to the chamber. Replace the burner.

Thermocouple (38 - Fig. 1)

Unscrew the nipple fixing the thermocouple to the valve,
loosen the 2 screws (25) on the pilot burner and replace
the thermocouple. To simplify the operation (and all those
concerning the pilot burner), screws (31) may be removed
and the pilot burner moved to a more accessible position.

Ignition plug (32 - Fig. 1)

Disconnect the ignition wire, unscrew two fastening
screws (25) and insert a new plug. To simplify the ope­ration, see the above-mentioned position.

WARNING

Everytime a replacement involving gas input parts is
made, recheck all functions and test for leakage.

A

29

27

33

33

27

28

26

25

32

38

37

30

34

31

1

041-03 - Gas fryers

12

10

13

12

11

14
15

3

Warning!

- Beware of inexpert handling!

- Old and dirty oil or frying fat can represent a real fire
hazard; make sure only new oil or frying fat are used
each time you start frying.

- The food you intend to fry should always be dry; wet
food causes the oil to foam and overflow.

- Frying excessively large quantities of food at a time
also causes the oil to foam; never exceed 2 kg.

- If the level of oil in the bath falls below the low level
mark stamped on it, the risk of fire will increase.

- Never leave the appliance on without any oil in it. The
lid delivered with the appliance should always be kept
within easy reach. In case of fire, it should be used to
douse the flames.

Preparation for use

Before frying for the first time, it is advisable to thoroughly
clean the appliance and above all the tank (see paragraph
"Cleaning and maintenance").

Filling the tank

Check that the oil drainage outlet is closed. Fill the tank
up to the maximum level mark with frying oil or liquid fat.

Turning on and off (Fig. 3)

Turn on gas supply.

Lighting the pilot burner

Press the button (14) and as the same time the piezoelec­tric lighter (12) to light the pilot flame, which can be seen
through hole 10 after opening the door at the bottom. Hold
the button down for at least 20/25 seconds. If the flame
goes out when you release the button, repeat the opera­tion.

Lighting the main burner

To light the main burner turn the knob (13) on the thermostat
to the desired temperature considering that the 8 positions
correspond to approximately the following temperatures:

Position degrees °C.

1 120
2 130
3 140
4 150
5 160
6 170
7 180

8

190

Turning off

To turn off the main burner turn knob (13) to the spark po­sition , so that only the pilot flame remains on.
To turn if off altogether, press the off button (15).

USING THE APPLIANCE

041-03 - Gas fryers

13

Emptying the tank

When emptying, check that you have a container large
enough to collect all the oil in the tank.
The container should be placed correctly under the drain
tap.
It is advisable to filter frying oil and fat daily and to chan­ge completely when necessary.
Open the drainage tap; when the tank is empty, close the
tap before removing the container.

Turning off in an emergency

In the case of malfunctioning, turn off the appliance and
turn off the gas and electric supply.

What to do in the case of malfunctio­ning or if the appliance is not to be
used for a long period

When the appliance is not to be used for a long time,
clean thoroughly and turn off both the gas and electric
supply. In the case of malfunctioning or failure, turn off
the gas supply and disconnect from the mains. Call the
service centre.

TAKING CARE OF THE APPLIANCE
FREQUENCY OF MAINTENANCE

Warning!

Never clean the appliance with jets of water, whether
direct or pressurised.
Allow the machine to cool down before cleaning

Giving the appliance a thorough clean every day (after tur­ning it off) will keep it in perfect working order and make it
last longer.
All steel parts should be cleaned with water and a deter­gent, using a damp cloth; do not use abrasive substances
or corroding detergents.
Do not use steel wool, which could leave traces of rust.
For the same reason, avoid touching the appliance with
anything made of iron.
Do not clean any parts of the appliance other than the gril­ling plate with emery or sandpaper. If absolutely neces­sary, you may use powdered pumice stone.
If the appliance is extremely dirty, use a synthetic sponge
such as Scotchbrite.
After cleaning the appliance, rinse with clean water and
dry with a clean cloth.
All maintenance work must be carried out by qualified per­sonnel only.
Have the appliance checked at least once a year; we
strongly recommend that you stipulate a servicing and
maintenance contract with your supplier.

041-03 - Gas fryers

14

WARNING

DUE TO ITS POLICY OF CONTINUAL PRODUCT IMPRO­VEMENT, THE MANUFACTURER RESERVES THE RIGHT
TO MAKE ANY CHANGES DEEMED NECESSARY.

THE MANUFACTURER CANNOT BE HELD RESPONSI­BLE IF THE INSTRUCTIONS CONTAINED IN THIS MA­NUAL ARE NOT OBSERVED.

GIGA GRANDI CUCINE S.r.l. - Via Pisana, 336 - Loc. Olmo - 50018 SCANDICCI (FI) - ITALY ­Tel. [phone] (11 linee r.a.) - Fax [phone] - www.gigagrandicucine.it -
[e-mail]