CHEFOOK CT74BGO1 Parts list manual

01/2016
High Technology Low Cost
Instructions for installation,
use e maintenance
GAS KITCHENS
CT74BGO1
CT76BGO1

0826_GB_99 - GAS ITCHENS
2· 16
01/2016
CHARACTERISTICS
Supplied by:
Date:
Customer Service:


FAX
e-mail

INDEX
1 Diagram 4
2 Characteristics of the appliances 5
3 Technical data 5
4 Installation instructions 7
4.1 Safety rules 7
4.2 Structure, framework a d safety devices of the applia ces 7
4.2.1 Cooking zone 7
4.2.2 Oven 7
G s version GN 1/1 7
4.3 Assembly 7
4.3.1 Inst ll tion premises 7
4.3.2 St tutory regul tions nd technic l requirements 7
4.3.3 Inst ll tion 7
4.3.4 G s connection 7
4.3.5 Equipotenti l 7
5 Operation preparation 8
5.1 Preparatio a d Start-up 8
5.1.1 St rt-up 8
5.1.2 Check of power 8
5.1.3 Checking the input pressure 8
5.1.4 Power check with volumetric method 8
5.1.5 Power check for oper tion with liquid g s 8
5.1.6 Oper tion control 8
5.1.7 Oper tor tr ining 8
5.1.8 Conversion nd djustment 8
5.1.9 Repl cement of open fl mes injectors 8
5.1.10 Setting reduced c p city power 8
5.1.11 Repl cement of burner injector of g s oven GN 1/1 8
5.1.12 Setting reduced c p city power oven 8
5.2 Mai te a ce 9
5.3 Replaci g parts 10
5.3.1 Open fl me g s cock 10
5.3.2 Open fl me g s burner 10
5.3.3 Open fl me thermocouple 10
5.3.4 Open fl me plug 10
5.3.5 G s cock g s oven GN 1/1 10
5.3.6 Plug g s oven GN 1/1 10
5.3.7 Thermocouple g s oven GN 1/1 10
5.3.8 M in burner g s oven GN 1/1 10
6 Instructions for use 11
6.1 Safety, clea i g a d repair rules 11
6.2 Start-up 11
6.2.1 Lighting nd disconnecting fl me burner without pilot 11
6.3 Lighti g a d shutdow of gas ove GN 1/1 11
6.4 Tur i g the applia ce off i case of breakdow 11
6.4.1 Wh t to do in c se of f ilure 11
6.4.2 Wh t to do in c se of prolonged period of disuse 11
6.5 Applia ce care a d freque cy of mai te a ce 11
6.6 Recomme datio s for ha dli g “stai less steel” i dustrial
kitche s 12
6.6.1 Useful inform tion on “st inless steel” 12
6.6.2 W rnings nd dvice for m inten nce of “st inless steel”
ppli nces 12
6.6.3 WEEE Directive 13
3· 16
0826_GB_99 - GAS ITCHENS 01/2016

0826_GB_99 - GAS ITCHENS
4· 16
01/2016
C
CT76BGO1
8
3
7


6

7
38
555
5
1


6

6
7


3
5 
8
9 5
3


7


3
0
5 5
0
0
00000
0
000
Data plate
D 
Gas 1/2"
Gas 1/2"
 
Gas 1/2"
 
Data plate
D 
Data plate
D 
Gas 1/2"
Gas 1/2"
 
1 - DIAGRAM

2 - CHARACTERISTICS OF THE APPLIANCES
3 - TECHNICAL DATA
0826_GB_99 - GAS ITCHENS 01/2016
These appliances are used for professional purposes. Installation,
repair and use must be carried out by expert personnel.
These instructions for installation are for our gas kitchens set up for
the category in the table 1 on pag. 6. The data plate is located on
the appliance, see diagram. Beware of inexpert handling.
5· 16
Model
CT74BGO1
CT76BGO1
Description
Gas range 4 burners - gas oven GN 1/1
Gas range 6 burners - gas oven GN 1/1
Dimensions in mm. (LxDxH)
800 x 700 x 900
1000 x 700 x 900
N.
51BS3545
51BS3545
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
0826_GB_99 - GAS KITCHENS
6· 16
01/2016
Primary air distance “A” mm
Methane gas G20
Liquid gas G30/G31
Category
Construction type
Air necessary for combustion
Nominal thermal power
Minimum thermal power
Overall thermal power (gas)
Model
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
) in m
3
/h
(HuB = 12.87 kWh/kg) in kg/h
Nominal thermal power
Minimal thermal capacity
Nominal thermal power
Minimal thermal capacity
G20
G30/G31
20 mbar
28/37 mbar
kW
kW
II2H3+
A
m
3
/h
kW
kW
No. of nozzles pilot burner
G20
G30/G31
0.370
0.272
145
Adjustable
95
40
-
-
1,95
2,73
-
-
1,44
2,02
Hour consumption
G20
m3/h
G25
m3/h
G30/G31
kg/h
G 
GN 1/1
7.5
3.6
0.95
Open
Open
0.381
0.284
145
Adjustable
9
50
-
-
-
-
17,6
24,6
C
Ø 100
7
3.5
0.85
CT74BGO1
CT76BGO1
TABLE 1

4 - INSTALLATION INSTRUCTIONS
4.1 Safety ules
• Installation, modifications and maintenance of the appliance
must be carried out by authorised personnel in compliance with
current safety standards. The manufacturer declines all responsi-
bility for failure to comply with these obligations.
• Ventilation system installation can be carried out only by expert
personnel.
• If the appliance is to be installed near walls, dividing walls, kit-
chen equipment or decorative panelling, these should be in non-
inflammable material. If not, all appliances must be coated with
thermal-insulation fireproof material. Make sure that all fire pre-
vention standards and safety precautions are strictly adhered to.
4.2 St uctu e, equipment and safety devices
of the unit
Robust steel frame, with 4 height adjustable feet.
Steel outer panelling.
4.2.1 C king z ne
• Burner with stabilized flame.
• Gas cocks with safety and adjustable from maximum to minimum.
• Thermoelectric ignition safety.
• Enamelled cast-iron pan supports.
• The bodies of the burners and the injector-holder cups are made
of aluminium, the flame spreaders are made of enamelled cast-
iron.
• 18/10 chrome-nickel steel cooking top.
• Knobs in thermosetting material.
4.2.2 Oven
The cooking chamber is made of stainless steel.
The runners for the pans are made of chromium-plated steel.
Extractable chromium-plated steel grill..
The door, with double wall and thermal insulation, is equipped with
an insulated handle and a hinge with balanced spring.
The insulation of the cooking chamber is rockwool.
Gas versi n GN 1/1
The tubular burners are in stainless steel and are resistant to thermal
and mechanical stress. Temperature adjustment between 100°C and
300°C, is made with the thermostat.
4.3 Assembly
4.3.1 Installati n premises
This is a type A1 appliance. It must be installed in an adequately ven-
tilated room in order to avoid potentially unacceptable concentra-
tions of harmful substances in the space in which the appliance is
installed. This room must meet all applicable local and national reg-
ulations.
The appliance must be installed in an adequately ventilated room in
order to ensure the air flow necessary for combustion, in accordance
with all applicable local and national regulations.
The appliance can be installed on its own or with other similar
equipment.
If the appliance is to be installed near inflammable walls, a minimum
distance of 150 mm around the sides and back should be allowed.
If this distance cannot be obtained, take proper heat-protection
action such as fitting tiles or thermal radiation protection material
to the walls.
Before connecting the appliance to the gas supply, check on the
data plate that the appliance is suitable and type-tested for the
type of gas available.
If the type of gas indicated on the data plate of the appliance does
not correspond to the gas which is present, refer to the paragraph
5.1.8 “Conversion and adaptation”.
4.3.2 Statut ry regulati ns and technical requirements
During installation of the appliance, the following regulations must
be adhered to:
• Relevant legal directives;
• Local building and combustion regulations;
• "Technical rules for gas systems" worksheet;
• "Technical rules for liquid gas" worksheet;
• “Gas installations in industrial kitchens” worksheet;
• Relative accident prevention standards;
• Local gas utility regulations;
• Local building and fire codes.
4.3.3 Installati n
Before installation, gas connection, power check, conversion or
adjustment and start up ask for gas supply company advice.
4.3.4 Gas c nnecti n
The gas connection may be made with a continuous wall, stainless
steel flexible hose with a maximum extension of 1.5 metres, in
accordance with all applicable local and national regulations. Hoses
must not pass through spaces which might become crammed with
items and they must not come into contact with any moving parts
such as drawers.
After completing gas connection, check for leaks using a special
leak-detector spray.
4.3.5 Equip tential
The appliance must be hooked up to a unipotential system.The
required terminal is located near the power cable and it is marked
by a tag with a symbol .
The manufacturers cannot be held responsible for any dam-
age due to inadequate or incorrect installation. nder such
circumstances the guarantee will be considered null and void.
7· 16
0826_GB_99 - GAS ITCHENS 01/2016

5.1 Prep r tion nd St rt-up
Before starting up the appliance, remove the protective wrapping.
Then carefully clean the working surface and the external parts with
lukewarm water and detergent, using a damp rag to remove all traces
of anti-rust material applied in the factory, then dry with a clean cloth.
5.1.1 Start-up
Before starting up the appliance, check that its specifications (cate-
gory and type of gas used) match those of the family and group of
the gas available locally.
If not, it is necessary to adapt the appliance to the gas family or
group required (see paragraph 5.1.8 “Conversion and adaptation”).
To start up the appliance, see the instructions for regular use.
5.1.2 Check of power
The appliances must be used with the specific injectors for the nomi-
nal power.
The power may be:
• the nominal power indicated on the data plate of the appliance;
• the reduced capacity power.
These injectors are shown in table 1.
Nominal power is also obtained in respect of the supply pressure:
• from 15 to 22.5 mbar for gases of the second family (G20/methane)
• from 25 to 45 mbar for gases of the 3rd family
(G30/butane, G31/propane)
The appliance shall not be operated outside the above-mentioned
pressure ranges.
To adjust power with reduced capacity, use the data in table 1.
If you wish to further check the nominal power, you may do so by
using a gas meter according to the so-called "volumetric method".
A simple inspection is usually enough to check if injectors are func-
tioning correctly.
5.1.3 Checking the input pressure
Input pressure should be measured using a fluid measuring gauge
(e.g. a gooseneck pipe, min. resolution 0.1 mbar).
Remove lock screw (pos. 10 fig. 1) from the pressure intake tube and
connect the gauge hose: once measurement is complete, replace the
screw and do a seal check using a leak detector spray.
5.1.4 ower check with volumetric method
Using a gas meter and a stopwatch, you can read the volume of gas
output per time unit. The correct volume corresponds to the value
"E" expressed in litres/hour (l/h) or litre/minute (l/min).
The following formula is used to calculate the value of “E”:
It is important measure the power when the appliance is in standby
status.
The calorific power value can be requested from the local gas company.
The nominal power and the minimum power with respect to the
nominal pressure are obtained by consulting the table for the
adjustment of the gas passage (table 1).
WARNING
There is no pre-adjustment device for the nominal
power.
E =Power
Operating calorific value
5.1.5 ower check for operation with liquid gas
Check if the type of injectors used meet the data of the table 1.
Check that the pressure reducer installed in the system has an outlet
pressure which is compliant with paragraph 5.1.2 "Check of power"
(can be checked on the data plate of the appliance or on the table
1).
5.1.6 Operation control
• Start the appliance in accordance with the instructions.
• Check that the appliance does not have any leaks by using a
leak-detecting spray.
• Check ignition and that flame on the main burner lights pro-
perly and is correctly formed, even on low.
• A servicing and maintenance contract is recommended.
5.1.7 Operator training
• Explain and show the user how the machine works according to
the instructions, and hand him this manual.
• Remind the user that any structural alterations or any building
modification or renovation may affect the combustion air supply,
thus requiring a second operation check.
5.1.8 Conversion and adjustment
To change over form one kind of gas to another, for example from
methane to liquid gas, or to another type of gas, the use of suitable
injectors for the main burner is required, in accordance with the
table 1.
The injectors of the main burners for different types of gas, marked
with the relative diameter in hundredths of mm, are in an envelope
which is provided with the appliance. If injectors are not available
please contact the factory with model and serial number written on
technical data sticker. After transformation or adaptation, carry out
operating checks as described in paragraph 5.1.6 “Operation con-
trol”.
5.1.9 Replacing of open burners injectors
To replace the injector (pos. 1 fig. 1): remove the grill, the flame
spreader (pos. 3 fig. 1) and the burner body (pos. 2 fig. 1), then
unscrew and replace the injector with one able for the type of gas,
see the table 1, reinstall everything in reverse order. After the
replacement check the seal using a leack detector spray.
5.1.10 Setting reduced capacity power
The minimum setting screw (pos. 5 fig. 1) should be adjusted as fol-
lows:
• for operation with LPG it should be screwed all the way down;
• for operation with methane, use the gas flow table to check the
value in l/min with respect to the operating alorific value (mea-
surement in accordance with the volumetric method). Start the
appliance in accordance with the instructions. Turn the knob to
the minimum position and use screw (pos. 5 fig. 1) to adjust the
flow (clockwise = flow reduction; conter-clockwise = flow
increase).
5.1.11 Replacement of burner injector of gas oven GN 1/1
Remove the front/lower unscrew the fixing sight screws. Unscrew
the screw fixing the hanger (pos. 2 fig. 2) of the injector-holder
(pos. 3 fig. 2), unscrew the screw (pos. 5 fig. 2) and extract the injec-
tor-holder from its housing, then unscrew and replace the injector
with one able for the type of gas, see table 1, install in reverse order.
After the replacement check the seal using a leack detector spray.
5 - SET-UP FOR OPERATION
0826_GB_99 - GAS ITCHENS 01/2016
8· 16

5 - SET-UP FOR OPERATION
0826_GB_99 - GAS KITCHENS 01/2016
5.1.12 Setting reduced capacity power oven
Loosen screw (pos. 9 fig. 2) by two or three turns after having remo-
ved the knob and the control panel cover.
Light the burner and keep it lit for at least 10 minutes with the knob
in the position, then put the knob to and tighten screw
(pos. 9 fig. 2) until a reduced but steady, even flame is obtained (the
flame must warm the thermocouple even on low).
5.2 Maintenance
Attention! Be ore doing any repair or maintenance
work, unplug the appliance.
The following maintenance program should be carried out at least
once a year by qualified personnel with license:
• Check that all the safety and adjustment devices are working
properly;
• Check that the burners are working properly with regard to:
- ignition
- combustion safety;
Check functioning of the appliance as described in paragraph 5.1.6
“Operation control”.
If it should be necessary to clean the open flame burners, proceed as
follows:
• Remove the grills, the flame spreaders and the bodies of the
burners;
• Clean the parts with water and detergent and an appropriate
tool. Rinse and dry.
When reassembling the parts, make sure you place them back in the
right position.
If it is necessary to clean the oven burner (pos. 18 fig. 2) proceed as
follows:
• Remove the lower panel as described previously. nscrew the
screw fixing the hanger (pos. 2 fig. 2) of the injector-holder
(pos. 3 fig. 2), unscrew the screw (pos.5 fig. 2) fixing the burner
to the injector-holder and xtract the injector-holder from its
housing;
• nscrew the fastening screw (pos. 19 fig. 2) of the burner and
remove it;
• Carefully clean all the holes of the burner with the aid of a tip
of a suitable size;
• Check that the smoke discharge is clear;
• Reinstall everything in reverse order.
After the replacement check the seal using a leack detector spray.
9· 16
14
5 67 10 9
8
11
15
17
16
1
12
3
4
2
13
0
Fig. 1

5 - SET-UP FOR OPERATION
0826_GB_99 - GAS KITCHENS 01/2016
5.3 Replacing parts
All parts must be replaced by authorized technicians
only!
To replace the following parts first remove all the control knobs and
control panel (after loosening the fixing screws), then extract the
ignition wire.
5.3.1 Open lame gas cock
Loosen the fitting of the pipes (pos. 9 fig. 1) of the gas, unfix the
graft (pos. 8 fig. 1) of the thermocouple, unscrew the two screws
(pos. 6 fig. 1) fixing the cock on the gas piping through the hanger
(pos. 7 fig. 1) and replace the piece (pos. 17 fig. 1) install in reverse
order install paying attention to the seal ring. After the replacement
check the seal using a leack detetctor spray.
5.3.2 Open lame gas burner
nscrew the nut blocking the gas pipe and slip off it from burner seat,
unscrew the screws (pos. 12 fig. 1) fixing the injector-holder cup (pos.
4 fig. 1), pull down the cup, unfix the thermocouple and the plug
(pos. 11 and 15 fig. 1) and replace the piece install in reverse order.
After replacement, check injector, see table 1 and do a seal check
using a leak detector spray.
5.3.3 Open lame thermocouple
nfix the graft (pos. 8 fig. 1) fixing the thermocouple on the cock,
unscrew the screws (pos. 12 fig. 1) fixing the injector-holder cup
(pos. 4 fig. 1), pull down the cup, unfix the thermocouple (pos. 11
fig. 1) and replace the piece install in reverse order.
5.3.4 Open lame plug
nfix the cable (pos. 16 fig. 1) from the piezo ignition, unscrew the
screws (pos. 12 fig. 1) fixing the injector-holder cup (pos. 4 fig. 1),
pull down the cup, unfix the plug (pos. 15 fig. 1) and replace the
piece install in reverse order.
5.3.5 Gas cock gas oven GN 1/1
Loosen the fittings (pos. 10 and 11 fig. 2) which are for the connec-
tion for the gas pipe and the thermocouple, unscrew the screws
(pos. 12 fig. 2) remove the coil of the thermostat from its place in
the cooking chamber and put in a new piece in the reverse order.
After the replacement check the seal using a leack detector spray.
5.3.6 Plug gas oven GN 1/1
nscrew the fastening screws and remove the lower panel, extract
the ignition wire and unscrew the screws (pos. 13 fig. 2) and put in a
new piece (pos. 16 fig. 2) install in reverse order.
5.3.7 Thermocouple gas oven GN 1/1
nscrew the nut (pos. 20 fig. 2) and the nut (pos. 10 fig. 2) fixing
the thermocouple on the cock and put in a new piece (pos. 17 fig.
2) install in reverse order.
5.3.8 Main burner gas oven GN 1/1
Remove the front/lower panel by removing the fastening screws.
nscrew the screws fixing the hanger (pos. 2 fig. 2) of the injector-
holder (pos. 3 fig. 2), unscrew the screw (pos.5 fig. 2) and extract
the injector-holder from its housing, unscrew the screws rear fixing
(pos. 19 fig. 2) of the burner and put in a new piece in the reverse
order. After the replacement check the seal using a leack detector
spray.
A ter any maintenance or repair work, replace the con-
trol panel and the lower panel.
A ter replacing gas input components, check operation
again and test or leakage.
10 · 16
3
10
11
1
13
16
12
2
14
15
5
18
17
19
20
9
Fig. 2

0826_GB_99 - GAS ITCHENS 01/2016
6.1 S fety, cle ning nd rep ir rules
• This appliance is used for the preparation of meals at indus-
trial level. Usage and cleaning can be carried only by expert
personnel. Maintenance and repair can be carried out only by
skilled technical personnel.
• These indications must be communicated to all those con-
cerned during internal training.
• Attention! This appliance must be constantly watched over
when being used!
• Grease and overheated oil can catch fire. Use this appliance
only under constant control. Never use water to put out
grease or oil! Cover with a lid, turn off the hot plate and
remove pot from the burner.
• Do not leave the burners running.
• Do not overload the kitchen. For proper use, pots should
not be bigger than the flames.
• Parts of the appliance and attachments exposed to food
must be cleaned with detergents and rinsed thoroughly with
potable water.
• Do not clean the appliance using water jets or steam,
whether direct or pressurized!
• If the room is being cleaned with water/steam jets or high-
pressure equipment, it is necessary to switch off the appliance
first!
• Before starting to clean the appliance, disconnect from the
mains.
• Do not use inflammable liquid to clean the appliance.
• Repairs may be carried out only by skilled personnel.
• During repairs, the appliance must undergo voltage
omnipolar insulation (local switch, i.e. safety load cut-off
switch).
• Noise emission values of the appliance in operation are
below 70dB (A). This value is compulsory according to certain
national safety standards.
WARNING
Attention! The manufacturer declines all responsibility concern-
ing mistakes included in these instructions due to translating or
printing errors: the manufacturer also reserves the right to
change the product as he see fits, though without changing its
essential features. The manufacturer declines all responsibility
for any non-compliance with the provisions contained in this
manual.
6.2 St rt-up
6.2.1 Lighting and disconnecting flame burner
without pilot
Press the knob (pos. 13 fig. 1) and turn to the left as far as .
eep the knob pressed down while repeatedly pressing the piezo
ignition button (pos. 14 fig. 1) until the flame catches. eep the
knob pressed down for another 15-20 seconds: if the flame goes out
after the knob is released, start again.
Burner power regulation must be done between the max ( )
and min. ( ) supply position of easily selectable inter-
mediate levels.
To turn the burner off during normal operation, turn the knob as
far as “0”.
6.3 Lighting nd shutdown of g s oven GN 1/1
Press and turn it to the left until position 7 the knob (pos. 14 fig. 2).
Hold the knob down and at the same time press the piezo ignition
button (pos. 15 fig. 2) repeatedly until the flame comes on. Ignition
of the flame can be seen through the hole in the cooking chamber
(with the door open). Hold the knob down for about 15-20 seconds.
If, when the knob is released, the light goes out, repeat the opera-
tion.
The approximate values for each position are the following:
Position 2 3 4 5 6 7
Degrees °C 100 150 180 210 240 260 280 300
To turn the burner off during normal operation, turn the knob as
far as “0”.
6.4 Turning the ppli nce off in c se of
bre kdown
6.4.1 What to do in case of failure
In case of breakdown or malfunctioning or failure close the gas cock
and the oven. Close the connecting cock of the unit. Call the service
centre.
6.4.2 What to do in case of prolonged period of disuse
When the appliance is not to be used for a long time, clean thor-
oughly, cas instructed in the chapter 6.5 “Appliance care and fre-
quency of maintenance”, close the connecting cock of the unit.
6.5 Appli nce c re nd frequency of m inten nce
Attention! When cleaning, carefully avoid washing the
appliance with direct water jets or high-pressure
water!
Cleaning must be performed when the appliance is cold.
Thorough daily cleaning of the appliance, after disconnecting it, 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 cause rust to form.
For the same reason, avoid touching the appliance with anything
made of iron. Do not clean with sandpaper and lubricating gel paper.
If absolutely necessary, you may use pumice powder.
If the appliance is extremely dirty, use a synthetic sponge (i.e.
Scotchbrite sponge).
After cleaning the appliance, rinse with clean water and wipe with
a clean cloth.
If the main burner needs cleaning, proceed as follows:
• Remove the pan support, cover, rings and burner crown;
• Clean burner parts with water, soap and a suitable tool, then
rinse and wipe;
• When reassembling the parts, make sure you place them back in
the right position.
All maintenance and repair work must be carried out by authorized
technicians only.
The appliance must be checked at least once a year. For this reason,
a service agreement contract is recommended.
11 · 16
6 - INSTRUCTIONS FOR USE

6 - INSTRUCTIONS FOR USE
0826_GB_99 - GAS ITCHENS 01/2016
6.6 Recommend tions for the tre tment of
st inless “steel industri l” kitchens
6.6.1 Useful information on “stainless steel”
Industrial kitchens are generally made of “stainless steel” having the
following material codes:
• 1.4016 or 1.4511 = magnetizable chromed steels
• 1.4301, 1.4401 and 1.4571 = non-magnetizable chromed steels
Chromed steels have favourable thermo-technical characteristics. In
fact, they have less of a tendency to warp due to the effect of heat.
Chrome-nickel steels, instead, have good corrosion resistance features.
“Stainless steel” corrosion resistance is given by an inactive coat that
builds up on the surface by coming into contact with oxygen.
The oxygen in the air is already enough to build up the inactive coat
that allows automatic removal of anomalies and damage due to
mechanical actions. The inactive coat builds up or re-builds up faster
if the steel comes in contact with running water containing oxygen.
A more powerful effect is given by oxidative acids (nitric acid, oxalic
acid). These acids are used if the steel has undergone strong chemi-
cal stresses, hence generally losing its inactive coat.
The inactive layer can be chemically damaged or jeopardized by
reducing agents (oxygen consumption) if they come in contact with
the steel, concentrated or at high temperatures. These active sub-
stances include for instance:
• saline and sulphurous substances
• chlorides (salts)
• concentrated spices such as mustard, vinegar essences, soup
cubes, kitchen salt solutions, etc.
More damage can be caused by:
• outside rust (i.e. from other components, tools or incipient rust)
• iron particles (i.e. file dust)
• contact with non-ferrous metals (element build up)
• lack of oxygen (i.e. no air inlet, water lacking oxygen).
6.6.2 Warnings and advice for maintenance of “stain-
less steel” appliances
• “Stainless” steel equipment surfaces must be kept clean and in
contact with air at all times. When not running, keep appliance
doors open so as to allow air to run through it.
• Regularly remove calcium , grease, starch, and egg white deposits
where rust may build up if there is lack of air. Do not use bleach-
ing products or products containing chloride. Follow all indica-
tions given by the company concerning special soaps and clean-
ing methods to be used for the appliance. If no specific cleaning
recommendations are available, it is necessary, however, to use
detergents having a low chloride content. After cleaning, remove
all soap residues with plenty of clean water and thoroughly dry
the surfaces.
• Minimize contact of “stainless steel” with concentrated acids,
spices, salts, etc. Even acid vapours coming from cleaning the tiles
favour “stainless steel” corrosion.
• Particularly for pots and multiple appliances, it is not recom-
mended to load the cooking chamber only with food having a
high salt content.
It is preferable to cook different food together, i.e. fatty dishes
or vegetables containing acids.
• Avoid damaging the “stainless steel” surface, in particular with
different metals. Residues from other metals help build up the
formation of chemical microelements that may cause rust. At any
rate, it is appropriate to avoid contact between iron and steel
since it produces rust. Any contact between “stainless steel” and
iron (steel wool, pipeline chips, chalybeate waters) can start cor-
rosion phenomena.
• As for mechanical cleaning, it is recommended to use only steel
wool or natural, plastic or steel bristle brushes. Steel wool or
brushes with “stainless steel” can cause rust due to rubbing. Newly
formed rust spots can be removed with slightly abrasive liquid
soaps or fine-grained sand paper. Larger rust spots can be
removed with 2-3% of hot oxalic acid solution. If these cleaning
products do not do the job, a nitric acid (10%) treatment is
required.
Attention! These treatments can be carried out only by
expert personnel according to current regulations!
12 · 16

6 - INSTRUCTIONS FOR USE
0826_GB_99 - GAS ITCHENS 01/2016
6.6.3 The 2002/96/EC (WEEE) Directive:
information to users
This informational note is meant only for
owners of equipment marked with the
symbol shown in fig. A on the adhesive
label featuring the technical specifica-
tions applied on the actual product (the
label also giving the serial number).
This symbol indicates that the product is classified, according to the
regulations in force, as an item of electrical and electronic equip-
ment and conforms to EU Directive 2002/96/EC (WEEE) meaning that,
at the end of its service life, it must be treated separately from
domestic waste, i.e. it must be handed in free of charge to a separa-
te waste electrical and electronic equipment collection centre or
returned to the reseller when buying a new equivalent item of
equipment.
The user is responsible for delivering the unit at the end of its life to
the appropriate collection facilities. Failure to do so shall result in
the user being subject to the penalties prescribed by the legislation
in force on waste.
Suitable separated collection so that the unit no longer used can be
sent off for environmentally compatible recycling, treatment and
disposal helps avoid possible negative effects on the environment
and on health and facilitates the recycling of the product's compo-
nent materials.
For more detailed information on available collection systems, con-
tact the local waste disposal service or the shop you purchased the
unit from.
Producers and importers fulfil their responsibility for environmental-
ly compatible recycling, treatment and disposal both directly and by
joining a collective scheme.
13 · 16
Fig. A

0826_GB_99 - GAS ITCHENS 01/2016
14 · 16
NOTES

0826_GB_99 - GAS ITCHENS 01/2016
15 · 16
NOTES

WARNING
THE MANUFACTURER CANNOT BE HELD RESPONSIBLE
FOR ANY INACCURACIES IN THIS BOO LET DUE
TO COPYING OR PRINTING ERRORS.
DUE TO ITS POLICY OF CONTINUAL PRODUCT IMPROVEMENT,
THE MANUFACTURER RESERVES THE RIGHT
TO MA E ANY CHANGES DEEMED NECESSARY.
THE MANUFACTURER CANNOT BE HELD RES ONSIBLE
IF THE INSTRUCTIONS CONTAINED IN THIS MANUAL
ARE NOT OBSERVED.