Retigo BC511STC, BC511C Operating manual

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Blast chillers/freezers

Comfort

511, 511ST

Operating manual

1. INDEX

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1. INDEX.................................................................................................................................................1

2. ANALYTICAL INDEX..........................................................................................................................2

3. REGULATIONS AND GENERAL INSTRUCTIONS........................................................................... 3

3.1. General information.................................................................................................................. 3

3.2. Warranty................................................................................................................................... 3

3.3. Replacement of Parts............................................................................................................... 3

3.4. Description of the Appliance .................................................................................................... 4

3.5. Features Plate..........................................................................................................................5

4. SAFETY..............................................................................................................................................5

4.1. Safety Devices .........................................................................................................................6

5. USE AND FUNCTIONING..................................................................................................................7

5.1. Description of the Functioning Cycles...................................................................................... 7

5.2. Description of the Controls....................................................................................................... 8

5.3. Functionality ............................................................................................................................. 9

5.4. Recommendations for Use.....................................................................................................16

6. CLEANING AND MAINTENANCE ...................................................................................................18

6.1. Recommendations for Cleaning and Maintenance................................................................ 18

6.2. Routine Maintenance ............................................................................................................. 18

6.3. Extraordinary Maintenance (5T Version) ...............................................................................19

6.4. Extraordinary Maintenance (TABLE Version)........................................................................ 21

7. TROUBLESHOOTING .....................................................................................................................22

7.1. Faults Display.........................................................................................................................23

8. INSTALLATION................................................................................................................................24

8.1. Packaging And Unpacking..................................................................................................... 24

8.2. Installation .............................................................................................................................. 25

8.3. Electric Power Supply Connection.........................................................................................25

8.4. Condensing unit water connection.........................................................................................25

8.5. Inspection...............................................................................................................................26

8.6. Parameters Programming......................................................................................................27

9. DISPOSAL OF THE APPLIANCE ....................................................................................................28

10. REFRIGERANT TECHNICAL CARD ...............................................................................................28

ATTACHMENTS....................................................................................................................................... I

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2. ANALYTICAL INDEX

Blast chilling Cycle; 17

Cleaning the condenser; 19; 22 Cleaning the evaporator; 19; 21 Condensing unit water connection; 25 Continuous cycle key; 8

Defrosting; 7; 14 Defrosting Key; 8 Description of the Appliance; 4 Description of the Controls; 8 Disposal of the Appliance; 28 Door micro switch; 6

Electric Power Supply Connection; 25 Evaporator Fan Micro switch; 6 Extraordinary Maintenance (5T Version); 19 Extraordinary Maintenance (TABLE Version); 21

Faults Display; 23 Features Plate; 5

General information; 3

HACCP data printer; 13 Heated Probe Key; 8 High condensation temperature alarm; 6

Inspection; 26 Installation; 25 Intensive timed blast chilling; 7

Needle Probe Heating; 15

Packaging; 24 Power Selection Key; 8 Preservation; 7

Programmers Selection Key; 8 Programs Memorisation; 14 Programs Recall; 14 Prolonged Inactivity; 16 Protective Fuses; 6

Recommendations for Cleaning and Maintenance;

18 Recommendations for normal use; 16 Recommendations for Use; 16 REFRIGERANT TECHNICAL CARD; 28 Replacement of Parts; 3 Replacing the fuses; 20; 21 Routine Maintenance; 18

SAFETY; 5 Safety Devices; 6 Setting Key; 8 Setting keys; 8 Setting the time and date; 14 Shock freezing Cycle; 17 START Key; 8

Temperature Blast Chilling; 7 Temperature Negative Cycle; 10 Temperature Negative Cycle Key (Shock

Freezing); 8 Temperature Positive Cycle Key (blast chilling); 8 Temperature Shock Freezing; 7 Time Blast Chilling; 7 Time Shock Freezing; 7 Timed Continuous Cycle; 13 Timed Negative Cycle; 12 Timed Negative Cycle Key; 8 Timed Positive Cycle; 11 Timed Positive Cycle Key; 8

U.V. Lamp Replacement; 20; 22 Unpacking; 24 UV Lamp; 15

Warranty; 3

3. REGULATIONS AND GENERAL INSTRUCTIONS

3.1. General information

This manual has been designed by the manufacturer to provide the necessary information to those who are authorised to interact with the appliance.

The persons receiving the information must read it carefully and apply it strictly. Reading the information contained in this document will allow the user to prevent risks to personal health and safety.

Keep this manual for the entire operating life of the equipment in a place which is well-known and easily accessible, so that it is always available when its consultation becomes necessary.

3.2. Warranty

The warranty of the equipment and the components we produce has duration of 1 (one) year from the date of delivery and translates into the supply, free of charge, of parts that we consider to be faulty. These faults must, however, be independent from incorrect use of the product in compliance with the indications stated in the manual.

3.3. Replacement of Parts

Particular symbols have been used to highlight some parts of the text that are very important or to indicate some important specifications. Their meanings are given below:

Indicates important information regarding

safety. Behave appropriately so as not to risk the health and safety of persons or cause damage.

Important

Indicates particularly important technical

information that must not be ignored.

Fees deriving from labour, journeys and transport are excluded from the warranty. The materials replaced under warranty are our property and must therefore be returned under the responsibility and expense of the customer.

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Caution - Warning

Activate all envisioned safety devices before

carrying out any replacement intervention.

In particular, deactivate the electrical power

supply using the differential isolating switch. Only use original spare parts to replace worn components.

All responsibility is declined for injury to persons

or damage to components deriving from the use of non-original spare parts and interventions which could modify the safety requisites, without authorisation of the manufacturer.

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3.4. Description of the Appliance

5T version

The Blast chiller-Shock freezer, from now on defined as appliance, has been designed and built to cool and/or freeze foodstuffs in the professional catering ambit.

1) condensation area: it is positioned in the lower part and is characterised by the presence of the condensing unit.

2) electric area: it is positioned in the lower part of the appliance and contains the control and power supply components as well as electric wiring.

3) evaporation area: it is situated inside the refrigerated compartment in the rear and is characterised by the evaporating unit.

4) storage area: it is situated inside the refrigerated compartment and is destined for the cooling and/or freezing of foodstuffs.

TABLE version

The Blast chiller-Shock freezer, from now on defined as appliance, has been designed and built to cool and/or freeze foodstuffs in the professional catering ambit.

5) condensation area: it is positioned in the lateral part and is characterised by the presence of the condensing unit.

6) electric area: it is positioned in the lateral part of the appliance and contains the control and power supply appliance as well as electric wiring.

7) evaporation area: it is situated inside the refrigerated compartment in the rear and is characterised by the evaporating unit.

8) storage area: it is situated inside the refrigerated compartment and is destined for the cooling and/or freezing of foodstuffs.

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The lower part is also distinguished by a control panel (A) that allows access to the electric parts; there is a vertically-opening door in the front, which closes the refrigerated compartment hermetically.

Depending on requirements, the appliance is produced in several versions.

5 TRAY BLAST CHILLER and SHOCK FREEZER

Model suitable to contain 5 trays with blast chilling capacity of 20 kg and 12 kg in shock freezing.

The lateral part is also distinguished by a control panel (A) that allows access to the electric parts; there is a vertically-opening door in the front, which closes the refrigerated compartment hermetically. Depending on requirements, the appliance is produced in several versions.

GASTRONOMY BLAST CHILLER

Model suitable to contain 5 GASTRONORM 1/1 trays with blast chilling capacity of 20 kg and 12 kg in shock freezing.

CONFECTIONERY BLAST CHILLER

Model suitable to contain 5 CONFECTIONERY 400x600 trays with blast chilling capacity of 20 kg and 12 kg in shock freezing.

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3.5. Features Plate

The identification plate shown is applied directly onto the appliance. It states the references and all indications indispensable for working in safety.

1) Appliance code

2) Description of the appliance

3) Serial number

4) Power supply voltage and frequency

5) Electrical absorption

6) Climatic class

7) Type and Amount of refrigerant gas

8) WEEE symbol

CODICE CODE /KODE

MODELLO MODEL/MODELL

MATRICOLA SERIAL No/SERIEN NR.

TENSIONE TENSION/SPANNUNG

INPUT LEISTUNGSAUFNHAME POTENZA

CLIMATIC CLASS KLIMAKLASSE CLASSE CLIMATICA

REFRIGERANT KUEHLMITTEL REFRIGERANTE

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4. SAFETY

It is recommended to carefully read the

instructions and warnings contained in this manual before using the appliance. The information contained in the manual is fundamental for the safety of use and for machine maintenance.

Keep this manual carefully so that it can be

consulted when necessary.

The electric plant has been designed in

compliance with the IEC EN 60335-2-24 Standard.

Specific adhesives highlight the presence of

mains voltage in the proximity of areas (however protected) with risks of an electrical nature.

Before the connection, ensure the presence of

an omnipolar switch with minimum contacts opening equal to 3 mm in the mains power supply upstream from the appliance (requested for appliances supplied without plug to connect to the fixed plant).

In the design and construction phase, the manufacturer has paid particular attention to the aspects that can cause risks to safety and health of persons that interact with the appliance.

Carefully read the instructions stated in the manual supplied and those applied directly to the machine, and particularly respect those regarding safety.

Do not tamper or eliminate the installed safety devices. Failure to comply with this requisite can lead to serious risks for personal health and safety.

It is recommended to simulate some test manoeuvres in order to identify the controls, in particular those relative to switch-on and switchoff and their main functions.

The appliance is only destined for the use for which it has been designed; any other use must be considered improper.

The manufacturer declines all liability for any

damage to objects or injury to persons owing to improper or incorrect use.

All maintenance interventions that require

precise technical skill or particular ability must be performed exclusively by qualified staff.

When using the appliance, never obstruct the

air inlet when the appliance is on, so as not to compromise its performance and safety.

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4.1. Safety Devices

During the running of appliance, some control devices may activate and govern the correct running of the machine. In other cases, they may deactivate parts or the whole machine, to put the appliance in safe conditions. Main controls are described below.

Door micro switch

Never stretch the power cable.

In order to guarantee hygiene and protect the foodstuffs from contamination, the elements that come into direct or indirect contact with the foodstuffs must be cleaned very well along with the surrounding areas. These operations must only be performed using detergents that can be used with foodstuffs, avoiding inflammable products or those that contain substances that are harmful to personal health.

In the case of prolonged inactivity, as well as disconnecting all the supply lines, it is necessary to accurately clean all internal and external parts of the appliance.

High condensation temperature alarm

If the door is opened, the magnetic switch placed on the control board opens and, during blastchilling or shock-freezing, evaporator fans go off and a warning message appears on the display at the same time. This condition may also be determined when the door is not perfectly aligned to or near the control board: in this case with machine in STOP phase, cycle start-up is prevented, apart from start-up of the defrosting cycle.

If a U.V. sterilisation cycle is active, the functioning of the U.V. lamp is interrupted. The cycle continues when the door is closed.

Protective Fuses

Some protection fuses in the general power supply line are activated in case of overload.

In the event of room conditions or functional failures, which cause the condenser to exceed the maximum temperature value, an alarm is triggered and stops the machine running. The machine can be run when an acceptable temperature value is reset.

Evaporator Fan Micro switch

If the deflector is opened to inspect the evaporator or fans, this micro switch positioned on the evaporator deflector, deactivates machine functioning. Closure of the deflector with the successive disappearance of the alarm on the display, restores normal machine functioning.

5. USE AND FUNCTIONING

5.1. Description of the Functioning Cycles

The following are brief descriptions and types of operating cycles.

Temperature Blast Chilling

This cycle allows a reduction in temperature in the product core from +90°C to +3°C as quickly as possible and within a MAX time of 90 minutes. The cycle ends when the value +3°C, read by the needle probe, is reached.

Time Blast Chilling

This cycle allows a reduction in temperature in the product core from +90°C to +3°C during the set time: we remind you that it is advisable to run some previous testing temperature cycles so to determine the necessary time for a correct product blast chilling process. Do not forget that acquired times and eventually memorised have to be considered valid for exclusive use of the same type of product and in the same quantities per cycle. There are 5 levels of power available: to every level corresponds an air temperature and specific ventilation.

Temperature Shock Freezing

This cycle allows a reduction in temperature in the product core from +90°C to -18°C as quickly as possible and within a MAX time of 270 minutes. The cycle ends when the value -18°C, read by the needle probe, is reached.

Time Shock Freezing

This cycle allows a reduction in temperature in the product core from +90°C to -18°C during the set time: we remind you that it is advisable to run some previous automatic test cycles so to determine the necessary time for a correct product blast chilling process. Do not forget that acquired times and eventually memorised have to be considered valid for exclusive use of the same

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type of product and in the same quantities per cycle.

Preservation

At the end of each cycle as described above, either temperature or time cycle, the preservation cycle will be started automatically, with no time limit. The freezer temperature will refer to last cycle, just concluded:

 + 3°C for blast chilling  -25°C for shock-freezing

Warning: use of this cycle is recommended only for short periods prior to storage of the product in a storage unit or in case of emergency, so as to avoid such a limited use of a machine with such high potential.

Continuous Cycle

This key enables selecting a continuously timed cycle. Just set the cell temperature and start the machine. It is possible to amend the fans speed depending on the specific requirements. The appliance maintains the set temperature, defrosting is automatically managed. The cell temperature can be amended during normal functioning. It is possible to use this cycle when large amounts of food must be blast chilled and the blast chilling time specific for each product is known.

Defrosting

The frost forming on the evaporator following the deposit of humidity from the product can jeopardise the correct functioning of the appliance. A defrosting cycle must be carried out to restore full functionality.

Defrosting is performed by forced ventilation using the evaporator fan. The cycle can be performed with the door open or closed and can also be interrupted at any time.

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5.2. Description of the Controls

DY1

DY2

Below is a brief description of the functions carried out by the keys on the control panel.

Temperature Positive Cycle Key (blast

chilling)

This key enables selecting the temperature blast chilling cycle (+90°Cà+3°C).

Temperature Negative Cycle Key (Shock

Freezing)

This key enables selecting the temperature shock freezing cycle (+90°Cà-18°C)

Timed Positive Cycle Key

This key enables selecting the timed blast chilling cycle.

Timed Negative Cycle Key

This key enables selecting the timed shock freezing cycle.

Heated Probe Key

In appliances in which the needle probe can be heated, once this key is pressed with the machine stopped, makes it possible to heat the needle probe so that it is easier to pull it out of the frozen product. If during a chilling / freezing cycle the "needle

In programs selection they enable choosing the wanted program.

START Key

Pressing the key starts a work cycle. Pressed for at least 3 seconds interrupts the cycle in progress. By pressing this button for at least 5 seconds the machine passes to the stand-by mode. Repeat the procedure to reactivate the board.

Defrosting Key

When the machine is off a manual defrosting cycle can be started. If the key is pressed again, the defrosting in progress can be stopped.

Programmers Selection Key

With machine still, enables recalling or memorizing a work program.

Setting Key

With the machine at standstill, it enables setting the current date and time. Pressed for at least 5 seconds, it enables setting the appliance parameters.

ON/OFF

Power Selection Key

and Setting keys

If timed chilling or freezing mode has been selected, these keys make it possible to set the number of minutes the cycle will last. This setting

is made prior to pressing the start key In programming they enable setting the parameters.

This key enables selecting the power of the work cycle.

Continuous cycle key

This key enables selecting a continuously timed cycle. It is possible to set the work temperature of the cell.

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5.3. Functionality

Temperature Positive Cycle (Blast Chilling +90°C +3°C)

If verification has negative result, LED (3) intermittently switches on and the buzzer is activated: it is possible to eliminate the alarm by

pressing key : the cycle re-starts normally. Whereas, if no choice is made, after a few seconds the controller starts a timed positive blast chilling cycle.

LED (5) relating to the blast chilling phase

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Select the positive cycle: . The LED relating to positive cycle (1) switch-on. The displays respectively show the temperature of the needle and the cycle time (90 minutes).

Select the wanted power level : the LED relating to the pre-chosen power (2) switch-on. There are 5 levels of power available.

Level 1…5 After level 5, it is also possible to choose the

automatic power level (automatic cycle).

The automatic power level is proposed by default.

Start the cycle by pressing key . During the first minutes of operation, the control

unit checks the exact positioning of the needle probe.

switch-on. The displays respectively show the temperature read by the product probe and the missing time. If the product has not reached 3 after 90 minutes the cycle is not concluded: the buzzer is triggered intermittently, the displays respectively show the temperature of the product and “out“. The blast chilling cycle is concluded successfully as soon as the temperature measured by the product probe reaches 3°C: the buzzer is triggered intermittently, the displays respectively show the temperature of the product and “End“. A preservation cycle is automatically started. The

preservation phase LED (5) switch-on. It is possible to display the temperature read by

the cell probe by pressing key : when the cell probe is displayed, the bottom left icon (6) displays the symbol “-“.

Pressing key during preservation shows the memorised cycle time in the lower display for five seconds.

Press to conclude the preservation cycle.

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Temperature Negative Cycle (Shock Freezing +90°C -18°C)

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Select the negative cycle: . The LED relating to negative cycle (1) switch-on. The displays respectively show the temperature of the needle and the cycle time (270 minutes).

Select the wanted power level : the LED relating to the pre-chosen power (2) switch-on. There are 5 levels of power available.

pressing key : the cycle re-starts normally. Whereas, if no choice is made, after a few seconds the controller starts a timed negative blast chilling cycle.

LED (5) relating to the shock freezing phase switch-on. The displays respectively show the

temperature read by the product probe and the missing time.

If the product has not reached -18 after 270 minutes the cycle is not concluded: the buzzer is triggered intermittently, the displays respectively show the temperature of the product and “out“. The shock freezing cycle is concluded successfully as soon as the temperature measured by the product probe reaches -18°C: the buzzer is triggered intermittently, the displays respectively show the temperature of the product and “End“. A preservation cycle is automatically started. The

preservation phase LED (5) switch-on. It is possible to display the temperature read by

Level 1…5 . The highest power level is proposed by default.

Start the cycle by pressing key . During the first minutes of operation, the control unit checks the exact positioning of the needle probe.

If verification has negative result, LED (3) intermittently switches on and the buzzer is activated: it is possible to eliminate the alarm by

the cell probe by pressing key : when the cell probe is displayed, the bottom left icon (6) displays the symbol “-“.

Pressing key during preservation shows the memorised cycle time in the lower display for five seconds.

Press to conclude the preservation cycle.

Timed Positive Cycle

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Select the wanted blast chilling time by pressing

keys and (keep pressed to speed up operation).

Start the cycle by pressing key . In timed cycle the needle probe correct insertion

verification test is not performed.

Select the positive cycle: . The LED relating to positive cycle (1) switch-on. The displays respectively show the temperature read by the cell probe and the cycle time (90 minutes).

Select the wanted power level : the LED (2) relating to the pre-chosen power switch-on. There are 5 levels of power available.

Level 1…5

The intermediate power level is proposed by default.

LED (3) relating to the blast chilling phase

switch-on. The displays respectively show the temperature

read by the cell probe and the residue time. It is possible to display the temperature read by

the product probe by pressing key : when the product probe is displayed, the bottom left icon (6) displays the symbol “1“. After 5 seconds, the display again shows the

temperature read by the cell probe. Once the set time has past, the appliance

automatically passes to positive preservation. The

preservation phase LED (3) switch-on. The displays respectively show the temperature

read by the cell probe and “End”. It is possible to display the temperature read by

the product probe by pressing key : Press to conclude the preservation cycle.

Timed Negative Cycle

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Select the required shock freezing time using keys

and . (keep pressed to speed up

operation).

Start the cycle by pressing key . In timed cycle the needle probe correct insertion

verification test is not performed.

Select the negative cycle: . The LED relating to negative cycle (1) switch-on. The displays respectively show the temperature read by the cell probe and the cycle time (270 minutes).

Select the wanted power level : the LED relating to the pre-chosen power (2) switch-on.

There are 5 levels of power available.

Level 1…5

The highest power level is proposed by default.

The shock freezing phase LED (3) switch-on. The displays respectively show the temperature

read by the cell probe and the residue time.

It is possible to display the temperature read by

the product probe by pressing key : when the product probe is displayed, the bottom left icon (6) displays the symbol “1“. After 5 seconds, the display again shows the

temperature read by the cell probe.

Once the set time has past, the appliance automatically passes to negative preservation.

The preservation phase LED (3) switch-on. The displays respectively show the temperature

read by the cell probe and “End”. It is possible to display the temperature read by

the product probe by pressing key : Press to conclude the preservation cycle.

Timed Continuous Cycle

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key it is possible to set the ventilation

power (2). Start the cycle by pressing key . The displays respectively show the temperature

read by the cell probe and the elapsed time.

Using keys and during functioning, makes it possible to amend the work temperature of the cell. It is possible to display the temperature read by

Select the continuous cycle: . The upper display shows the set cell temperature.

The time shown in the lower display is not settable “--:--“. Using keys and

it is possible

to amend the work temperature of the cell. Using

HACCP data printer (Optional)

If the printer is enabled, the following events are printed:

 print heading : date, time and selected cycle;  cycle start: cell probe and product probe

temperature;

 alarms : type of alarm, time, product probe

and cell probe temperature;

 cycle end: time, compartment and needle

temperature;

 start preservation: time, product probe and

cell probe temperature;

 Defrost: time, product probe and cell probe

temperature;

 alarms : HACCP type of alarm, time, product

probe and cell probe temperature;

 preservation record: time, product probe and

cell probe every 30 minutes.

Alarms which can be printed out are:

DOOR →Door opening HT →Cell high temperature alarm. LT →Cell low temperature alarm.

A printing example follows.

the product probe by pressing key . Defrosting management is automatic.

Press key for at least three seconds to conclude the cycle.

*********************** Cycle:

- Positive

- Intensive

- Shaft 19/01/11 11:08 *********************** KEY

TC=CELL TEMPER TP=PRODUCT TEMPER HT=HIGH T. ALARM LT=LOW T ALARM *********************** COOLING *********************** 00:00 START TC 30°C TP 70°C 04:20 END TC -35°C TP -18°C *********************** STORING *********************** 16:35 HT TC 5°C TP -20°C 13:35 LT TC -40°C TP -22°C 17:20 STOP TC -25°C TP -21°C

Programs Memorisation

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The upper display will show the label P followed by the selected program number (for example P01). The already occupied programs will show “buSY” on the lower display. The free programs will show “FrEE” on the lower display.

To memorise a work cycle, set it as if it were a timed program in machine standstill mode. Instead of starting the cycle press for at least five

seconds the programming key : a beep of the buzzer confirms the input into programs memorisation.

Programs Recall

With the machine stopped, press and release the

Using keys and , select the number of program to memorise, press the programming

key again to confirm memorisation. If a program is selected with already existing data, this will be overwritten. If a key is not pressed for ten seconds, the

programs memorisation procedure is cancelled.

For each selected program, the following information appears on the display:

1. label P followed by the selected program number (for example P01),

2. the type of cycle: positive or negative

3. the memorised time for that particular cycle

4. the power level associated to that program

Select the required program using keys and

If you select a program that has not been memorised, the time display will show “

Once the required program has been selected,

---

“.

programming key .

4.4.3. Setting the time and date

Make sure the machine is at stand-still.

To access time setting, press . The upper display will show labels Hr (hours), Mn (minutes), dA (day), Mo (month) and Yr (year), whereas the lower display will, from time to time, show the settings relating to the upper display label.

Defrosting

press .

Press to scroll the

labels, whereas by pressing keys and

the relative values can be updated. Exit

timer setting by pressing for at least 3 seconds or due to timeout of 10 seconds. The new data set for the timer is immediately active

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Make sure the machine is at stand-still.

To select the defrosting cycle press ,

pressing key confirms the choice and starts the cycle. The lower display shows the elapsed time.

Needle Probe Heating (Optional)

To select the needle probe heating cycle press,

press key , pressing key confirms the choice and starts the cycle.

UV lamp (Optional)

Defrosting is performed by forced ventilation using the evaporator fan. Once the defrosting cycle has ended, the buzzer

is intermittently activated. The cycle is automatically interrupted at the end of

the envisioned time. It is possible to manually interrupt the cycle by

pressing key for at least three seconds.

At the end of a work cycle, the product probe heating cycle facilitates removal of the probe from the frozen product. This function is not active if:

• the needle probe provided is not a type

which can be heated

• the temperature of the needle probe is

The cycle is automatically interrupted at the end of the envisioned time. It is possible to manually interrupt the cycle by

pressing key for at least three seconds.

This cycle can be started only with the door closed and it will immediately be interrupted if the door is opened during sterilization. The upper display shows the temperature read by the cell probe, the lower display shows the

greater than 0°C

residue time, the relative icon switches on: . The cycle is automatically interrupted at the end of

To select the disinfection cycle press ,

pressing key confirms the choice and starts the cycle.

the envisioned time. It is possible to manually interrupt the cycle by

pressing key for at least three seconds. For correct machine efficiency and hygiene, it is advisable to disinfect the cell at the end of every work shift.

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5.4. Recommendations for Use

Prolonged Inactivity

If the appliance remains inactive for a long period, proceed as follows:

1. Use the automatic isolating switch to deactivate connection to the main electrical line.

2. Clean the appliance and surrounding areas thoroughly;

3. Spread a thin layer of cooking oil onto the stainless steel surfaces;

4. Carry out all maintenance operations;

5. Leave the doors ajar to prevent the formation

of mould and/or unpleasant odours.

Recommendations for normal use

In order to ensure correct use of the appliance, it is good practice to apply the following recommendations:

Do not obstruct the zone in front of the

condensing unit in order to favour heat disposal from the condenser to a maximum. Always keep the front of the condenser clean.

Do not insert foodstuffs that are well above the

temperature of 90°C. As well as initially overloading the machine it can make protections intervene that prolong temperature descent times. If possible, a brief external period is useful to lower the temperature to acceptable values. Check the planarity of the appliance rest surface.

Do not stack the materials to be preserved in

contact with the internal walls, so blocking the circulation of air, which guarantees uniformity of the internal temperature of the refrigerated compartment.

There must be a sufficient space between the

basins and trays used in order to guarantee a sufficient flow of cold air on the entire product. Therefore avoid the following positions of trays and/or basins stated below.

Never obstruct the inlet of the evaporator fans.

Limit the number of times and the duration of time the doors are opened.

Blast chilling data refer to standard products

(low fat content) with a thickness below 50 mm; therefore avoid overlaying products or the insertion of pieces with a much higher thickness. This would, in fact, lead to an extension of blast chilling times. Always distribute the product well on the trays or basins or in the case of thick pieces decrease the amount to blast chill.

After blast chilling/shock freezing the product, it

can be stored in a preservation cabinet after having been duly protected. A tag should be applied describing the contents of the product, blast chilling/shock freezing date and expiry date.

When the product has been blast chilled it must be preserved at a constant temperature of +2°C , while if it has been shock frozen it must be preserved at a constant temperature of -20°C .

The chiller should be used for storage for short

periods only.

To prevent bacterial contamination or

contamination of any other biological nature, the needle probe must be disinfected after use.

To extract the product that has undergone blast

Products that are more difficult to chill because

of their composition and size should be placed in the centre.

chilling or shock freezing, always wear gloves to protect the hands, as "burns" may occur from the cold.

Blast chilling Cycle

The blast chilling cycle envisions two phases with specific ventilation percentages and temperatures. Listed below are the functioning percentages and temperatures of each individual phase:

Power Level

Display

1 2 3 4 5 AUTO

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Phase1

Phase2

When the product reaches the pre-set temperature, the appliance automatically passes to phase two. The 1,2 and 3 power level has been conceived for delicate products, in which the appearing of ice crystals on the product surface is common. The 4 and 5 power level maintains during initial phase, a value of the air temperature much below zero, in order to accelerate the product

Shock freezing Cycle

The shock freezing cycle envisions two phases with specific ventilation percentages and temperatures. Listed below are the functioning percentages and temperatures of each individual phase:

Air Temperature [°C] 0°C 0°C 0°C -15°C -20°C AUTO % Ventilation 50% 75% 100% 100% 100% AUTO

Air Temperature [°C] 0°C 0°C 0°C 0°C 0°C 0°C % Ventilation 50% 75% 100% 100% 100% AUTO

temperature drop. This type of chilling must be preferred for packed products or products whose physical/organoleptic characteristics would not be damaged by superficial ice. The default mode is “AUTO”: in this mode, the air temperature and ventilation are automatically calculated depending on the type and the amount of product inserted in the appliance.

Power Level

1 2 3 4 5

Display

Air Temperature [°C] -3°C -9°C -15°C -20°C -35°C

Phase1

% Ventilation 50% 75% 100% 100% 100% Air Temperature [°C] -35°C -35°C -35°C -35°C -35°C

Phase2

% Ventilation 50% 75% 100% 100% 100%

When the product reaches the pre-set temperature, the appliance automatically passes to phase two. The 1, 2 and 3 power level has been conceived for delicate products, to avoid ice forming externally with still high core temperature. With certain products, this type of shock freezing enables a more even product freezing. The 4 and 5 power level maintains the temperature value in the cell below -18°C, (which is the end shock freezing temperature). The default mode is number 5.

For shock freezing to be successful and fast,

food should be in small pieces, especially if it has a high fat content. The largest pieces should be placed in central trays. If it takes longer than standard time to shock freeze and the sizes cannot be reduced, decrease the quantity and precool the chiller compartment by starting an empty shock freezing cycle before shock freezing the product.

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6. CLEANING AND MAINTENANCE

6.1. Recommendations for Cleaning and Maintenance

particular, deactivate the electrical power supply

Activate all envisioned safety devices before

carrying out any maintenance interventions. In

6.2. Routine Maintenance

Routine maintenance consists of daily cleaning of all the parts which can come into contact with foodstuffs and the periodic maintenance of the burners, nozzles and draining pipes. Correct maintenance allows the user to maximise performance levels and operating life and constantly maintain safety requirements.

Do not spray the appliance with direct jets of water or using high pressure appliances.

Do not use iron wool, brushes or scrapers to clean the stainless steel as ferrous particles could be deposited which, on oxidising, could lead to rust.

using the automatic isolating switch.

To remove hardened residues, use wooden or plastic spatulas or abrasive rubber pads.

During long periods of inactivity, spread a protective layer on all stainless steel surfaces by wiping them with a cloth soaked in Vaseline oil and airing the rooms periodically.

Do not use products which contain substances

which are harmful and dangerous for personal health (solvents, petrol etc.).

At the end of the day it is advisable to clean:

 the cooling compartment  the appliance.

6.3. Extraordinary Maintenance (5T Version)

Have the following operations carried out periodically by specialised staff:

 Check the perfect sealing of the door

gaskets and replace them if necessary.

 Check that the electric connections have

not loosened.

 Check the efficiency of the heating

element resistance

Cleaning the evaporator

Clean the evaporator periodically.

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 Check functioning of the board and

probes.

 Check the efficiency of the electrical

system.

 Clean the evaporator.  Clean the condenser.

As the fins of the evaporator are very sharp,

always wear protective gloves for the next phases. Only a brush must be used for cleaning: do not use jets of liquid or sharp instruments. To access the evaporator proceed as follows:

1. Open the door (A) of the appliance.

2. Loosen the two screws (B) on the right of the

deflector.

3. Remove the runners (C):

4. Turn the deflector (D) to the left

Cleaning the condenser

Clean the condenser periodically.

As the fins of the condenser are very sharp,

always wear protective gloves for the next phases. Use protective masks and glasses in the presence of dust.

Whenever the condenser has a deposit of dust

in correspondence with the fins, this can be removed using a suction device or with a brush applied, using a vertical movement along the direction of the fins.

No other instruments must be used, which may

deform the fins and therefore the efficiency of the appliance. To clean, proceed as follows:

1. Open the door (A) of the appliance.

2. Remove the lower panel (B) from the

technical compartment: to do this, remove the screw fasteners (C).

3. It is now possible to clean the finned part of the condenser (D) using suitable tools and protection devices.

4. After cleaning, close the control panel and fix it with the screws removed beforehand.

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Replacing the fuses

The fuses are in the lower part of the technical

compartment (E). To access these, open the

U.V. Lamp Replacement

After having removed the flush sliders, remove the screws that fix the evaporator deflector onto the right side (A).

control panel using the same method listed for the access and cleaning of the condenser.

Access the UV lamp. This lamp can be removed by sliding it upwards (B). Carry out all the operations in reverse order after having removed the U lamp.

Once you have removed the screws, the evaporator deflector can be opened by turning it.

6.4. Extraordinary Maintenance (TABLE Version)

Have the following operations carried out periodically by specialised staff:

 Check the perfect sealing of the door

gaskets and replace them if necessary.

 Check that the electric connections have

not loosened.

 Check the efficiency of the heating

element resistance

Cleaning the evaporator

Clean the evaporator periodically.

As the fins of the evaporator are very sharp,

always wear protective gloves for the next phases. Only a brush must be used for cleaning: do not use jets of liquid or sharp instruments. To access the evaporator proceed as follows:

5. Open the door (A) of the appliance.

6. Loosen the two screws (B) on the right of the

deflector.

7. Remove the runners (C):

8. Turn the deflector (D) to the left

 Check functioning of the board and  Check the efficiency of the electrical  Clean the evaporator.

 Clean the condenser.

C B

ENGLISH

probes. system.

Replacing the fuses

The fuses are in the lower part of the technical compartment (E). To access these, open the control panel

using the same method listed for the access and cleaning of the condenser.

Cleaning the condenser

Clean the condenser periodically.

As the fins of the condenser are very sharp,

always wear protective gloves for the next phases. Use protective masks and glasses in the presence of dust.

Whenever the condenser has a deposit of dust

in correspondence with the fins, this can be removed using a suction device or with a brush applied, using a vertical movement along the direction of the fins.

No other instruments must be used, which may

deform the fins and therefore the efficiency of the appliance.

To clean, proceed as follows:

5. Open the door (A) of the appliance.

6. Turn the lateral panel (B) from the

7. It is now possible to clean the finned part

8. After cleaning, close the control panel and

U.V. Lamp Replacement

After having removed the flush sliders, remove the screws that fix the evaporator deflector onto the right side (A).

ENGLISH

technical compartment: to do this, remove the screw fasteners (C).

of the condenser (D) using suitable tools and protection devices.

fix it with the screws removed beforehand.

by sliding it upwards (B). Carry out all the operations in reverse order after having removed the U lamp.

Once you have removed the screws, the evaporator deflector can be opened by turning it. Access the UV lamp. This lamp can be removed

7. TROUBLESHOOTING

The information shown below aims to help with the identification and correction of any anomalies and malfunctions which could occur during use. Some of these problems can be resolved by the

user. For the others, precise skill is required and they must therefore only be carried out by qualified staff.

Problem Causes Solutions

Check the power supply cable.

ENGLISH

Check fuses. No voltage

The refrigerator unit does not start

The refrigerator unit functions

continuously, cooling insufficiently

The refrigerator unit does not stop

Presence of ice inside the

evaporator

Appliance noise Persistent vibrations

Check the correct connection of the

appliance.

Other causes

Room too hot Air the environment

Dirty condenser clean the condenser

Insufficient door sealing check the gaskets

Insufficient quantity of

refrigerant gas

Condenser fan at a standstill

Probe faulty

Circuit board fault

@ @

Carry out a defrosting cycle possibly

If the problem persists,

contact the after-sales centre.

Contact the after-sales centre.

with the door open.

If the problem persists,

contact the after-sales centre.

check there is no contact between

the appliance and other objects

inside or outside

7.1. Faults Display

Problem Causes Solutions

"E0" flashes on the display and

the buzzer emits an intermittent

noise

(compartment probe error)

"E2" flashes on the display and

the buzzer emits an intermittent

noise

(condenser probe error)

 The type of probe is

incorrect.

 The probe is faulty.  The probe – circuit board

connection is incorrect.

 The temperature detected

by the probe is out of the limits accepted by the compartment probe in use

Contact the after-sales centre.

 Check that the compartment

probe is the PTC type.

 Check the integrity of the

compartment probe.

 Check correctness of the

instrument - probe connection.

 Check that the temperature in

proximity of the compartment

FRAG

ILE

DO NOT EXPOSE

ENGLISH

"E3" flashes on the display and

the buzzer emits an intermittent

noise

(needle probe error)

"dFL" flashes on the display and

the buzzer emits an intermittent

noise

"Ht" flashes on the display and

the buzzer emits an intermittent

sound

(high condensation

temperature alarm)

The evaporator fan deflector

has been opened.

The condenser temperature

has exceeded the set limit.

8. INSTALLATION

8.1. Packaging And Unpacking

Handle and install the appliance respecting the information provided by the manufacturer, shown directly on the packaging, on the appliance and in this manual.

The lifting and transportation system of the packaged product envisions the use of a fork-lift truck or a pallet stacker. When using these, particular attention must be paid to balancing the weight in order to prevent the risk of overturning (avoid excessive tilting!).

ATTENTION: When inserting the lifting device,

pay attention to the power supply cable and the position of the feet.

The packaging is made of cardboard and the pallet of wood. A series of symbols is printed on the cardboard packaging which highlights, in accordance with international standards, the provisions to which the appliances are subjected during loading, unloading, transport and storage.

probe is not out of the accepted limits

Contact the after-sales centre.

Close the evaporator fan deflector.

Contact the after-sales centre.

 Air the environment.  Clean the condenser  Check that the fans function

correctly.

On delivery, check that the packaging is intact and has not undergone any damage during transportation. The transportation company must be notified of any damage immediately.

The appliance must be unpacked as soon as possible to check that it is intact and undamaged. Do not cut the cardboard with sharp tools so as not to damage to the steel panels underneath. Pull the cardboard packaging upwards. After having unpacked the appliance, check that the features correspond to those requested in the order; Contact the dealer immediately if there are any anomalies.

Packaging elements (nylon bags, polystyrene

foam, staples …) must not be left within reach of children. Remove the protective PVC film from the internal and external walls, avoiding the use of metal tools.

TOP

HANDLE

WITH CARE

TO HUMIDITY

8.2. Installation

All the installation phases must be considered, from the moment of creation of the general plan.

The installation area must be equipped with all power supply and production residue drainage connections and must be suitably lit and respect current laws regarding hygiene and sanitary requirements.

The performance of the appliance is guaranteed

with a room temperature of 32°C. A higher temperature can compromise its performance and, in more serious cases, cause the appliance’s protections to start up. Therefore, consider the most critical room conditions that can be reached in that position before making a choice.

Level the appliance by acting on the individual feet.

This appliance can only be installed and

operate in rooms which are permanently ventilated, in order to guarantee correct operation.

8.3. Electric Power Supply Connection

Connection must be carried out by authorised and qualified staff, respecting the current laws regarding the subject and using appropriate prescribed material.

Before connecting the appliance to the electric

mains, check that the voltage and the frequency correspond to the data stated on the registration plate applied on the rear of the appliance.

ENGLISH

Connect and leave for a certain period of time

(at least 2 hours) before checking functioning. During transport it is probable that the compressor lubricant oil has entered the refrigerant circuit blocking the capillary: as a consequence the appliance will function for a certain period of time without producing cold until the oil has returned to the compressor.

ATTENTION: the appliance requires the

minimum functioning spaces, as shown in the attachments.

The defrosting water and the water that forms at the bottom of the refrigerating compartment during operation or during periodical internal cleaning must be drained through a prearranged hose with a minimum diameter 3/4” connected to the hose at the bottom of the chiller.

A drain trap should also be guaranteed. The drain must be in compliance with Standards in force.

possible to have appliances with different voltages.

Before connection, ensure the presence of a

relevant differential switch with adequate power in the mains power supply, upstream from the appliance, in order to protect the appliance from overloads or short circuits

The appliance is supplied with an operating

voltage of 230V 1+N~ 50 50Hz. On request, it is

8.4. Condensing unit water connection

The chiller cabinets with water condensation have been designed to use normal tap water.

Connect the mains pipe to the appliance connection pipe, positioning a shut-off cock (A) to interrupt the water supply when necessary. Install some easily reachable filters downstream from this.

The water pressure must be between 150÷300

kPA (1.5÷3 bar).

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NON ACCENDERE LA

MACCHINA FINO A CHE

NON E' COLLEGATA

L'ALIMENTAZIONE

IDRICA

DO NOT TUR THE

MACHINE UNLESS IT IS

CONNECTED TO THE

WATER SUPPLY

TABLE

Attachment to the water network must be

carried out before switching the appliance on: if cooling is missing from the condensing circuit, the maximum pressure switch intervenes, which blocks the machine.

The machine must also be checked for leaks that could interfere with electrical parts and cause short-circuits.

It is preferable for both the water drain and supply pipes to be fitted with cocks to stop the water supply to the machine during maintenance.

8.5. Inspection

The appliance is delivered in conditions such that it can be started-up by the user. This functionality is guaranteed by passing the tests (electric inspection - functional inspection, appearance inspection) and relative certification through the specific attachments.

At least the following should be checked after installation:

INGRESSO ACQUA USCITA ACQUA

WATER INLET WATER OUTLET

Both water inlet and drain pipe connections are 3/4”. To know which attachment to use (both 3/4”), simply follow the indications in the figure (the same label should be found near the water supply connections).

If the water has a high mineral salt content (i.e.

if it is too hard), to ensure long and efficient life to the exchanger we suggest you install a water softener at the water inlet.

Even if the pressure valve has been calibrated before leaving the factory, after having connected the machine to the water supply and turned on the any cocks installed, check for water leaks from the drain when the machine is at a standstill. In case of a leak, adjust the pressure valve until the leak stops.

 Check the electric connections.  Check the functionality and efficiency of

drains.

 Check that there are no tools or materials

left in the appliance that could jeopardise its functionality or even damage the machine.

 Have the appliance perform at least one

complete chill blasting/shock freezing cycle

8.6. Parameters Programming

Access to the programming procedure of the configuration parameters is admitted only with machine at standstill. There are two levels of configuration present.

Level 0 (USER)

USER parameters directly amendable from keyboard (example blast chilling time). To access such parameters carry out the following:

 Press for at least three seconds, the

upper display shows parameter PA;

 scroll the parameters using keys and

: the top part displays the name of the

parameter, the bottom part the value.

 to amend the displayed parameter, press

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Level 1 (INSTALLER)

To access all parameters, carry out the following:

 Press for at least three seconds, the

upper display shows parameter PA;

 press to set the password: the

parameter displayed in the bottom part flashes.

 press keys and to select the

password value -19.

 confirm data by pressing : the first

parameter is shown on display;

 scroll the parameters using keys and

: the parameter displayed in the bottom

part flashes.

 press keys and to amend the

parameter value, press to memorise the new value;

 continue in this way to amend the other

parameters;

To exit programming, press for at least 5 seconds

key or await one minute without pressing any key.

: the top part displays the name of the

parameter, the bottom part the value.

 to amend the displayed parameter, press

: the parameter displayed in the bottom

part flashes.

 press keys and to amend the

parameter value, press to memorise the new value;

 continue in this way to amend the other

parameters;

To exit programming, press for at least 5 seconds

key or await one minute without pressing any key.

To print the parameters, keep key pressed for 3 seconds.

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9. DISPOSAL OF THE APPLIANCE

This appliance is marked in compliance with the

2002/96/EC European Directive, WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE).

By assuring that this product is disposed of

correctly, the user contributes to preventing the potential negative consequences on the environment and health.

The symbol found on the product or on the accompanying documentation indicates

that this product must not be treated as domestic waste but must be taken to suitable collection points for the recycling of electric and electronic appliances.

Dispose of it following local regulations regarding waste disposal.

For further information regarding the treatment, recovery and recycling of this product, contact the relevant local office, the domestic waste collection service or the shop where the product was purchased.

10. REFRIGERANT TECHNICAL CARD

The refrigerant used in the machine is R404a fluid. Below find the components of the fluid: PENTAFLUOROETHANE (HFC R125) 44%

ETHANE 1,1,1 – TRIFLUORO

52%

ETHANE 1,1,1,2 TETRAFLUORO

R134A) 4%

IDENTIFICATION OF DANGERS

The rapid evaporation of the liquid can cause freezing. The inhalation of high concentrations of vapour can cause irregular heartbeat, short term narcotic effects (including vertigo, headache and mental confusion), fainting and death.

• Effects to the eyes: Freezing or cold burns caused by contact with the liquid.

• Effects on the skin: Freezing or cold burns caused by contact with the liquid.

(HFC R143A)

(HFC

•

Effects of ingestion. Ingestion is not considered a means of exposure

FIRST AID

Eyes: In the case of contact, wash the eye well

using a large amount of water for at least 15 minutes. Consult a doctor. Effects on the skin: Wash with water for at least 15 minutes after excessive contact. If necessary, cure freezing by gently warming the area in question. Consult a doctor in the case of irritation. Ingestion: Ingestion is not considered a means of exposure. Inhalation: If large concentrations are inhaled, go into the open air. Keep the person calm. If the person cannot breath, perform artificial respiration. If respiration is difficult, apply oxygen. Consult a doctor.

RETIGO

Láň 2310, PS43

756 64 Rožnov pod Radhoštěm

email: info@retigo.cz

tel.: +420 571 665 511

TSD-11-BC-MAN-EN_R00

Retigo BC511STC, BC511C Operating manual

Specifications and Main Features

Frequently Asked Questions

User Manual