CHEFOOK CT74BGO1 Manual de lista de piezas

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





555

5









3

5



8

9 5

3





3

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00000

000

Data plate

D 

Gas 1/2"

 

Gas 1/2"

 

Data plate

D 

Data plate

D 

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

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

FR BE

AT CH

EE LV LT

NO MT CY IS HU

MOD.

ART.

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

) in m

(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

II2H3+

No. of nozzles pilot burner

G20

G30/G31

0.370

0.272

145

Adjustable

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

0.381

0.284

145

Adjustable

9

17,6

24,6

Ø 100

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

5 67 10 9

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

Fig. 2

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