ZANOLLI Citizen 6/MC Service manual

CITIZEN 6 - 9/MC
Electromechanical/electronic
Pizza and delicatessen ovens
Installation, use and maintenance manual
DR. ZANOLLI s.r.l.
Via Casa Quindici, 22
37060 Caselle di Sommacampagna (Verona) Italy
Tel [phone] (r.a.)
Fax [phone]
Web: www.zanolli.it •e-mail: [email protected]

dr.Zanolli s.r.l.
via Casa Quindici 22
37060 Caselle di Sommacampagna VR
Tel. [phone] Fax [phone]
VAT N.IT00213620230
Citizen 6 - 9/MC
English manual
cod. CITM.E.EM-D.UK.06
rev. 0.2 del 20/04/11

_________________________________________________________________________INDEX
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3 CITIZEN 6 - 9/MC
INDEX
INDEX...............................................................................................3
1.INTRODUCTION...........................................................................6
2.HOW TO USE THIS MANUAL......................................................7
3.SPECIFICATIONS ........................................................................9
3.1.PRODUCT IDENTIFICATION......................................................................... 9
3.2.CONFORMITY TO DIRECTIVES .................................................................... 9
3.3.ENVISAGED USE....................................................................................... 9
3.4.TECHNICAL SPECIFICATIONS ................................................................... 10
4.INSTALLATION WARNINGS .....................................................11
4.1.DELIVERY CHECKS................................................................................. 11
4.2.CHOICE OF PLACE TO INSTALL THE OVEN ................................................. 11
4.3.ELECTRICAL CONNECTION ...................................................................... 12
5.INSTALLATION ..........................................................................13
5.1.CHECK LIST........................................................................................... 13
5.2.CHOICE OF THE PLACE OF INSTALLATION OF THE OVEN ............................. 13
5.3.MOVING THE MODULE............................................................................. 13
5.5.CONNECTING THE STEAM OUTLET............................................................ 14
5.6.CHECKS BEFORE STARTING UP ELECTROMECHANICAL VERSION................. 15
5.7.CHECK BEFORE STARTING THE ELECTRONIC VERSION ............................... 15
6.WORKING ELECTROMECHANICAL VERSION.......................16
6.1.CONTROL PANEL.................................................................................... 16
6.1.1.Temperature control.......................................................................................16
6.1.2.General............................................................................................................16
6.1.3.Power control .................................................................................................16
6.2.CONTROL DESCRIPTION.......................................................................... 16
6.2.1. Main ON/OFF switch...............................................................................16
6.2.2. Baking chamber light switch.................................................................17
6.2.3. Switch for suction hood .....................................................................17

_________________________________________________________________________INDEX
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4 CITIZEN 6 - 9/MC
6.2.4.Temperature control Baking chamber temperature display..17
6.2.5. Set button, Push-button of ESC. ...........................................17
6.2.6. and buttons................................................................................18
6.2.7. OUT display.........................................................................................18
6.2.8.Power regulators ..........................................................................18
6.2.9.Oven roof and bedplate pilot lamps............................................19
6.3.ERROR DISPLAY..................................................................................... 19
6.3.1.Short-circuited thermocouple.......................................................................19
6.3.2.Disconnected thermocouple .........................................................................19
7.ELECTRONIC VERSION OPERATION......................................20
7.1.CONTROL PANEL.................................................................................... 20
7.2.ACTIVITY AND INACTIVITY STATE ON/OFF OF MAIN SYSTEM ................. 21
7.3.SETTINGS.............................................................................................. 21
7.3.1.Setting of set-temperature .........................................................21
7.3.2.Setting of oven top and oven bottom power .........21
7.3.3. Main ON/OFF light switch.....................................................................22
7.3.4.Key on/off...............................................................................................22
7.3.5.Key chamber light .................................................................................23
7.3.6. Switch for suction hood ......................................................................23
7.4.ALARMS................................................................................................ 23
7.4.1.Overtemperature alarm..................................................................................23
8.USE .............................................................................................24
8.1.PREPARATION FOR USE.......................................................................... 24
8.2.IGNITION OF THE CONTROL PANEL ........................................................... 24
8.3.SETTINGS.............................................................................................. 24
8.4.BAKING START....................................................................................... 25
8.5.LOADING THE OVEN................................................................................ 25
8.6.GENERAL INDICATIONS FOR GOOD COOKING............................................. 25
8.7.TURNING OFF......................................................................................... 26
9.CLEANING..................................................................................27

_________________________________________________________________________INDEX
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5 CITIZEN 6 - 9/MC
9.1.CLEANING OF ANY VISIBLE GLASS AND STAINLESS STEEL PARTS................ 27
9.2.CLEANING OF ANY REFRACTORY PARTS................................................... 27
9.3.CLEANING THE OVEN’S BAKING CHAMBER................................................ 28
9.4.CLEANING THE EXTERNAL SURFACE ........................................................ 28
10.MAINTENANCE........................................................................29
10.1.ORDINARY MAINTENANCE WORK ........................................................... 29
10.1.1.Light replacement ........................................................................................29
10.2.ERROR DISPLAYS................................................................................. 30
10.3.ELECTRICAL DIAGRAM.......................................................................... 30
10.3.2.Electronic version ........................................................................................30
10.4.ADJUSTMENT FOR DIFFERENT FEED VOLTAGES....................................... 30
10.4.1.Cabling of wires to the resistor...................................................................30
10.4.2.The cabling for the feed to the control panel.............................................30
10.4.3.Attachment of new label..............................................................................31
10.5.EXPLODED VIEWS AND SPARE PARTS LIST.............................................. 31
11.DECOMMISSIONING AND DEMOLITION...............................49
12.DECLARATION OF CONFORMITY.........................................50

______________________________________________________________1. INTRODUCTION
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6 CITIZEN 6 - 9/MC
1.INTRODUCTION
The modular “CITIZEN” ovens represent the new way of making traditional
pizza ovens.
They are designed and manufactured to demanding mechanical and
electrical standards and are built to last.
“CITIZEN” has been designed with the user in mind.
“CITIZEN” has a complete range to satisfy everybody’s needs.
The manufacturer thanks you for choosing one of our ovens. We can assure
you that you have made a good choice as we have been making quality
products for decades now and never engaged in counterproductive penny-
pinching in our selection of the best available materials.

____________________________________________________2. HOW TO USE THIS MANUAL
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7 CITIZEN 6 - 9/MC
2.HOW TO USE THIS MANUAL
This manual should be kept near to the equipment itself so it can be
quickly and easily consulted. The manual must travel with the equipment if it
is moved to another owner as the latter may not be considered complete or
safe without it.
Please take note of the code and revision numbers which are behind the
back cover. If this copy should get mislaid or destroyed you can order
another one by referring to the codes.
This manual is divided up into a number of chapters. All of these should
be read by the installers, maintenance staff and the final user, both in
relation to its safe use and in order to obtain the best result from this product.
Despite this we also give below some useful indications on how to look things
up quickly in the various chapters.
The paragraphs with this symbol contain essential safety
information. They must all be read both by the installers and by the final
user and any of his staff who may use the equipment. The manufacturer
shall not be held liable for any damage which may occur as a result of
failure to observe the norms indicated in these paragraphs.
The paragraphs with this symbol contain important information which
can be used to avoid damage being caused to the equipment. It is the user’s
own interest also to read these paragraphs carefully.
Chapter 3 describes the field of use of the equipment and provides the
characteristics and figures which may be needed when choosing, installing
and using it. It should be used as a reference to check the use which is
intended to be made of the equipment corresponds to that for which it was
designed, and whenever it is necessary to know an exact size value relating
to the equipment.
Chapters 4 and for 5 provide all the information necessary for the installation
of the equipment. The manual is primarily written for specialised staff but may
be read in advance also by the final user to prepare and set up the space
and plant necessary for the proper working of the equipment.

____________________________________________________2. HOW TO USE THIS MANUAL
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8 CITIZEN 6 - 9/MC
Chapters 6 and 7 is for reference whenever the user wishes to clarify specific
aspects of the equipment operation. It is not advisable to use these
chapters as a way to learn how to use the equipment.
Chapter 8 is useful for the user who has to learn to use the oven from
scratch. It guides the user through the essential operations for switching on,
use and switching off of the equipment in safety. To exploit all the possibilities
of the equipment the user should refer to chapter 6.
Chapter 9 provides all the information required for the cleaning of the
equipment i.e. all those operations which have to be carried out by the user in
order to ensure that the equipment continues to function safely (especially
from the point of view of hygiene) and generally obtains the best results at all
times.
Chapter 10 provides the information necessary for proper periodic and
extraordinary maintenance e.g. repairing or replacing of the equipment.
This chapter also has an exploded view of the equipment and list of spare
parts to make ordering and replacing any damaged parts easier.
Chapter 11 provides the information necessary for the decommissioning and
demolition.
These maintenance operations must be carried out by specialised staff.

_____________________________________________________________3. SPECIFICATIONS
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9 CITIZEN 6 - 9/MC
3.SPECIFICATIONS
3.1.Product identification
This is the manual for the following single deck from the Citizen series:
Citizen 6/MC and Citizen 9/MC.
3.2.Conformity to directives
The following single deck:
Citizen 6/MC and Citizen 9/MC compulsory mark:
which guarantees their conformity to the following European directives:
2004/108/CE electromagnetic compatibility;
2006/95/CE low voltage.
3.3.Envisaged use
The following single deck Citizen 6/MC and Citizen 9/MC have been
designed to cook pizzas, similar products and pastry products, in pans or
directly on refractory bedplates.
The single deck Citizen 6/MC and Citizen 9/MC are intended for professional
use in the catering sector (Restaurants, pizzerias, confectionery’s shops,
etc.) and are exclusively intended to be used by qualified staff.
The operations envisaged in normal usage are the opening and closing of the
doors, the loading and unloading of the products from the bedplates of the
baking chamber, switching on, regulation, switching off and cleaning of the
equipment.

_____________________________________________________________3. SPECIFICATIONS
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10 CITIZEN 6 - 9/MC
3.4.Technical specifications
The following table shows the baking modules’ technical specifications.
Citizen 6/MC Citizen 9/MC Units of
measurement
Weight 160 204 Kg
External dimensions 1376×1025×411 1376×1310×411 mm
Cooking chamber size 1050×700×155 1050×1050×155 mm
Capacity (pizzas Ø30cm) 69n°
Electrical feed three-phase or three-phase + neutral
Voltage 230 o 400 Vac
Frequency 50 o 60 Hz
Current at 400Vac 3-N 50/60Hz 13.9 16.55 A
Current at 230Vac 3 50/60Hz 24 28.6 A
Current at 230Vac 1-N 50/60Hz 38.3 48.7 A
Total electrical power 8.8 11.2 Kw
Electrical connection plugless 4 or 5 lead cable
Cooking chamber light
Type halogen
Power 50 W
Cooking control
Temperature control
electromechanical version electronic thermostat
Temperature control electronic
version electronic computerization
Maximum temperature which can be
set 400 °C
Power control separate for oven roof and bedplate
Ambient conditions
Temperature 0-40 °C
Maximum humidity 95% without condensation
Table 3.1.Technical specifications

_____________________________________________________4. INSTALLATION WORNINGS
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11 CITIZEN 6 - 9/MC
4.INSTALLATION WARNINGS
WARNING: These installation instructions are intended only for
staff which is qualified for the installation and the maintenance of
electrical and/or gas plants. Installation by any other person may cause
damage to the equipment, persons, animals or things.
Furthermore in the place where you have to install the equipment, it is
necessary to make any modifications or additions to the electrical and/or gas
plant in the building in which the equipment is being installed, the person
carrying out such alterations must obtain certification that the works have
been carried out in accordance with the norms in force in that country.
4.1.Delivery checks
Unless otherwise agreed the products are carefully packed in a strong
wooden crate with a blister sheet of nylon to protect them from shocks and
humidity during transit and are delivered to the importer in the best possible
condition.
We recommend, however, that the packaging is checked on arrival to ensure
that there are no visible signs of damage. If there are any such signs indicate
their nature on the receipt which has to be signed by the driver.
Once the equipment is unpacked check to see if it has suffered any damage.
Also check that any parts which are delivered unattached to the equipment
are present. If there has been any damage to the equipment and/or any
parts are missing do not forget that the transport company will accept
complaints only up to 15 days from the delivery day and that the
manufacturer will not be held liable for damage suffered to its products during
transit. We are nevertheless willing to help you in presenting your complaint.
If there is any damage do not attempt to use the equipment and call
upon professionally qualified staff.
4.2.Choice of place to install the oven
The good, safe and long working of the equipment also depends on the place
in which it is installed so it is advisable to carefully evaluate this before it is
delivered.
Install the equipment in a dry place which is easily accessible both as regards
its use and its cleaning and maintenance. The area around the equipment

_____________________________________________________4. INSTALLATION WORNINGS
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12 CITIZEN 6 - 9/MC
must be free of encumbrances. In particular it is necessary to avoid
obstructing the cooling apertures.( Figure 5.1).
The equipment must in any case be installed at least 2 cm from the walls of
the room and from other equipment.
Finally it is necessary to ensure that the temperature and relative
humidity of the place in which the equipment is installed must never exceed
the maximum and minimum values indicated in the specifications section
(see 3). In particular if the maximum temperature and relative humidity are
exceeded, the equipment may easily and unpredictably go out of order or be
damaged in its electrical parts, thus creating a dangerous situation.
4.3.Electrical connection
The equipment is supplied with a cable for the electrical connection with
earth lead. In observance of the current safety norms it is compulsory to
connect the earth wire (yellow-green) to an equipotential system whose
efficiency must be properly checked against the norms currently in
force.
Before making any connections ensure that the characteristics of the
mains supply to which the equipment has to be connected, correspond to the
feed characteristics required by the equipment itself (see 3 and plate on
equipment). See figure 5-3 for the exact position of the feed cable output.
The feed cable must end in a plug which connects to an electrical feed panel
with a corresponding socket and a different magneto thermal switch.
The plug-socket connection must be such that the earth lead is connected
first and disconnected last and must be of the correct size for the nominal
current (see 3). Suitable plugs and the industrial type CEE 17 of any which
satisfy the European Norm EN 60309.
The thermal safety device must be set for the total nominal current, the
magnetic safety device must be set for the instantaneous maximum current (
in the case of ovens it is a little above the nominal figure, in the case of
machines it is the pick up current for the most powerful motor) , while the
differential device must be set to the 30 mA current (see 3.) .
The manufacturer shall not be liable for any damage which results from
failure to observe the above mentioned norms.

_______________________________________________________________5. INSTALLATION
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13 CITIZEN 6 - 9/MC
5.INSTALLATION
5.1.Check list
There are no separately supplied parts.
5.2.Choice of the place of installation of the oven
Avoid obstructions to the cooling
opening located on the right side of the
module (Figure 5.1.).
In choosing the place to install the single
deck Citizen 6/MC and Citizen 9/MC
bear in mind they have to be completed
with the addition of other modules from
the series (Hood, prover etc.).
5.3.Moving the module
When unloading and moving the module
when it is packed use a fork-lift truck or
transpallet which has a capacity at least
equal to the weight of the module and
insert the forks into the space provided in
the lower part of the packing.
When moving the module which is not
packed insert the forks in the upper
chamber.
In any case, to avoid unforeseen movements, take note of the position
of the centre of gravity (Figure 5.2 and table 5.1).
a mm b mm c mm
Citizen 6/MC 685 455 200
Citizen 9/MC 685 630 200
Table 5.1.Centre of gravity
In addition, to avoid damage to the module, insert some protective
material between the forks and the module itself.
Figure 5.1.Cooling openings
Figure 5.2.Centre of gravity

_______________________________________________________________5. INSTALLATION
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14 CITIZEN 6 - 9/MC
5.4.Mounting the module
steam outlet
electrical cable input
Fig. 5.3.Position of electrical cable input, steam outlet and plate.
Position the modules one above the other in the right order ( prover or base,
baking module, hood) and fix by means of the accompanying hooks and
screws.
5.5.Connecting the steam outlet
The steam outlet should be connected thought the duct on the hood (see
instructions). It is necessary to use a pipe Ø200 mm connected to the
outside.
Avoid long horizontal stretches as they may lead too accumulations of
condensation and possible dripping.
For the exact connection position see Figure 5.3.
a mm b mm c mm w mm
Citizen 6/MC 740 630 733 1370
Citizen 9/MC 740 630 1083 1370

_______________________________________________________________5. INSTALLATION
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15 CITIZEN 6 - 9/MC
5.6.Checks before starting up electromechanical version.
Turn on the main switch on the switchboard.
Turn on the switch (6.2.1.), program a temperature above 100-120 °C
(6.2.4.), set both the power regulators at 10.
Check that the current to each phase is that indicated in chapter 3., for the
corresponding feed voltage.
Set both the power regulators at 5 and check that their lights go on and off at
intervals.
Turn off the switches and the main switch on the board.
5.7.Check before starting the electronic version
Turn on the main switch on the control panel.
Turn on the ON/OFF light switch ON/OFF of the oven main system
(7.3.3.). Press the key , programme a temperature over 100-120 °C
(7.3.1.) and set the two values of the oven top and bottom powers to 9
(7.3.2.) and (7.3.4.).
Press the key , turn off the ON/OFF light switch of the oven main
system and the main switch on the control panel.
IMPORTANT – PRE-HEATING PHASE AT FIRST IGNITION
The components of the brand new oven (refractory stone bottom and metal
parts) need to be pre-heated before being used for the first baking.
When the oven is switched on the first time, it is necessary to HEAT IT
GRADUALLY IN ABOUT 5-6 HOURS (1°h=100°C - 2-3°h=150°C -
4°h=200°C - 5°h=250°C - 6°h=300°C). The max temperature has to be
reached at the end of this pre-heating phase.
This procedure is absolutely necessary to avoid damages to any part of the
oven.

______________________________________6. WORKING ELECTROMECHANICAL VERSION
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16 CITIZEN 6 - 9/MC
6.WORKING electromechanical version
6.1.Control panel
Figure 6.1. shows the control panel with all controls:
6.1.1.Temperature control
Baking chamber temperature display
Set button
Up button
Down button
Out display
6.1.2.General
Baking chamber light switch
Baking chamber on/off switch
Switch for suction hood
6.1.3.Power control
Oven roof power regulator and
light
Oven bedplate power regulator
and light.
6.2.Control description
6.2.1. Main ON/OFF switch
When this switch is OFF, all displays on the control panel are off. When it is
ON, the switch itself and the thermostat turn on, so that it is possible to set
the temperature. The baking chamber heating elements remain off as long as
the switch is off. When the switch is ON, it turns on and the baking
Fig.6.1.Control panel

______________________________________6. WORKING ELECTROMECHANICAL VERSION
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17 CITIZEN 6 - 9/MC
chamber heating elements turn on according to the set temperature and
power.
6.2.2. Baking chamber light switch
By setting switch on ON, the switch and the chamber light turn on.
6.2.3. Switch for suction hood
The switch for suction hood control
is placed on the side part of the control
panel, on the upper side (Pos.1 of Fig. 6.2).
Push this switch on position "I" to start one of the
two motors of the suction hood.
Push this switch on position "II" to start both
motors of the suction hood.
Push this switch on position 0 to stop it.
6.2.4.Temperature control Baking chamber temperature
display
In the normal operation mode, this display shows the cooking chamber
temperature in °C.
In the temperature programming mode, this display shows the programmed
temperature. This displays is also used to display some failures. (6.3.).
6.2.5. Set button, Push-button of ESC.
Press two times this button to select the temperature programming mode.
WARNING ! do not keep this button pressed because this might alter
the thermostat internal parameters and cause possible unpredictable failures.
In this operation mode, the display shows the programmed
temperature, which can be changed using the and buttons. If no
buttons are pressed for more than 3 seconds, the thermostat automatically
returns to the normal operation mode.
See chapter 3 for the range of temperatures that can be selected.
To press two times this push-button in order to exit from the way
programming temperature.
Pos. 1
Fig.6.2

______________________________________6. WORKING ELECTROMECHANICAL VERSION
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18 CITIZEN 6 - 9/MC
6.2.6. and buttons
By pressing and releasing these buttons once, the set temperature increases
or decreases by one unit. By keeping them pressed, the set temperature
increases or decreases progressively, slowly at first and then faster.
6.2.7. OUT display
The display turns on every time the baking chamber temperature is
below the set temperature. It turns off when the cooking chamber
temperature reaches the set temperature and goes on again when the baking
chamber temperature goes 1° C below the set temperature.
When the display is on, the baking chamber heating elements turn on
according to their power settings.
6.2.8.Power regulators
Each baking chamber has two power regulators, one connected to the oven
roof heating elements, and the other one to the bedplate heating elements.
These regulators ensure an even distribution of the heat inside the baking
chamber so as to obtain an even cooking.
Each power regulator controls the power of its own heating element,
regulating the start up time of the heating element within a range of 30
seconds.
If the power regulator is set on 1, its heating element will be on for 3 seconds
and off for 27 seconds ( provided the is on). If the power regulator is
placed on 5, its heating element is on for 15 seconds and off for 15 seconds.
When the power regulator is placed on 10, its heating element is always on
(provided the display is on).

______________________________________6. WORKING ELECTROMECHANICAL VERSION
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19 CITIZEN 6 - 9/MC
6.2.9.Oven roof and bedplate pilot lamps
Both oven roof and bedplate pilot lamps turn on when the display is on
and its power regulator is switching on within the regulation cycle, to indicate
that its heating element is actually on.
power regulation
position no. secs. to switch on no. secs. to switch off
1 3 27
2 6 24
3 9 21
4 12 18
5 15 15
6 18 12
7 21 9
8 24 6
9 27 3
10 30 0
6.3.Error display
6.3.1.Short-circuited thermocouple
When the thermocouple is across the line (short circuit), the
display shows “---”.
6.3.2.Disconnected thermocouple
When the thermocouple is disconnected or interrupted, the
display shows “EEE”.
The same code of error appears if the baking chamber temperature exceeds
the maximum temperature that can be selected.

_______________________________________________7. WORKING ELECTRONIC VERSION
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20 CITIZEN 6 - 9/MC
7.ELECTRONIC VERSION OPERATION
7.1.Control panel
The picture 7.1. shows the control panel
with all controls:
Display of oven temperature /
setting temperature
Display of oven top heating
elements control
Display of oven bottom
heating elements control
Key of parameter programme input
Key of parameter increment
Key of parameter decrement
Key of chamber light switching on
and off
Key of main on/off activity and
inactivity state and baking cycle start/stop
Main ON/OFF light switch of oven
Switch for suction hood.
Fig.7.1. Control panel