Retigo Practic 1011 User manual

Blast chiller / freezer
Practic 1011, 1411
OPERATING MANUAL
READ THIS MANUAL BEFORE USE

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1. INDEX
1.INDEX................................................................................................................................................. 1
2.ANALYTICAL INDEX.......................................................................................................................... 2
3.SAFETY.............................................................................................................................................. 3
4.REGULATIONS AND GENERAL INSTRUCTIONS........................................................................... 4
4.1.General information.................................................................................................................. 4
4.2.Warranty................................................................................................................................... 4
4.3.Replacement of Parts............................................................................................................... 4
4.4.Description of the Appliance .................................................................................................... 4
4.5.Features Plate.......................................................................................................................... 5
4.6.Safety Devices ......................................................................................................................... 6
5.USE AND FUNCTIONING.................................................................................................................. 7
5.1.Description of the Functioning Cycles...................................................................................... 7
5.2.Description of Controls............................................................................................................. 8
5.3.Functioning............................................................................................................................... 9
5.4.Recommendations for Use..................................................................................................... 15
6.CLEANING AND MAINTENANCE................................................................................................... 16
6.1.Recommendations for Cleaning and Maintenance................................................................ 16
6.2.Routine Maintenance ............................................................................................................. 16
6.3.Extraordinary maintenance.................................................................................................... 17
7.TROUBLESHOOTING ..................................................................................................................... 19
7.1.Faults Display......................................................................................................................... 20
8.INSTALLATION................................................................................................................................ 21
8.1.Packaging And Unpacking..................................................................................................... 21
8.2.Installation.............................................................................................................................. 22
8.3.Electric Power Supply Connection......................................................................................... 22
8.4.Inspection............................................................................................................................... 23
8.5.Programming the settings ...................................................................................................... 23
9.DISPOSAL OF THE APPLIANCE.................................................................................................... 24
10.REFRIGERANT TECHNICAL CARD............................................................................................... 24
ATTACHMENTS.......................................................................................................................................I

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2. ANALYTICAL INDEX
B
Blast chilling Cycle; 16
C
Cancelling the list of HACCP alarms; 14
Cleaning the condenser; 18
Cleaning the evaporator; 17
Compressor operating hours; 14
Cooling Cycle; 12
Core Probe Heating; 13
D
Defrosting; 7; 12
Description of Controls; 8
Description of the Appliance; 4
Display of Temperatures; 13
Disposal of the Appliance; 24
E
Electric Power Supply Connection; 22
Evaporator Fan Micro switch; 6
F
Faults Display; 20
Features Plate; 5
G
General information; 4
H
HACCP Alarms; 13
HACCP alarms display; 13
Hard Temperature Blast Chilling cycle; 9
Hard Time Blast Chilling cycle; 10
High pressure safety pressure switch; 6
I
Inspection; 23
Installation; 22
K
Keyboard lock; 13
P
Packaging; 21
Preservation; 7
Programming the settings; 23
Prolonged Inactivity; 15
Protective Fuses; 6
R
Recommendations for Cleaning and Maintenance;
16
Recommendations for normal use; 15
Recommendations for Use; 15
REFRIGERANT TECHNICAL CARD; 24
Replacement of Parts; 4
Replacing the fuses; 18
Routine Maintenance; 16
S
SAFETY; 3
Safety Devices; 6
Shock freezing Cycle; 16
T
Temperature Blast Chilling; 7
Temperature Shock Freezing; 7; 11
Time and Date SET; 14
Time Blast Chilling; 7
Time Blast Chilling cycle; 10
Time Defrosting; 12
Time Shock Freezing; 7; 11
U
Unpacking; 21
W
Warranty; 4

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3. 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 60335-2-89
Standard.
!Maintain ventilation openings in the
appliance casing or in the built-in structure free
from all obstructions.
!Do not use mechanical devices or other
means to accelerate the defrosting process, other
than those recommended by the manufacturer.
!Do not damage the coolant circuit.
!Do not use electrical appliances inside the
appliance compartments for storage of frozen
food.
!Do not store explosives, such as pressurised
containers with flammable propellant, in this unit.
!Do not place anything on the bottom of the
device. Use the appropriate racks to store the
product.
!The maximum permissible load for the racks
is 45kg evenly distributed.
if the supply cord is damaged, it must be
replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid
hazard.
,Specific adhesives highlight the presence of
mains voltage in the proximity of areas (however
protected) with risks of an electrical nature.
!If a stationary appliance is not fitted with a
supply cord and a plug, the means for
disconnection must be incorporated in the fixed
wiring in accordance with the wiring rules.
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 and those applied directly to the machine,
and particularly respect those regarding safety.
Do not tamper with, evade, eliminate or by-pass
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 to identify the controls, in particular
those relative to switch-on and switch-off 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.
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

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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.
4. REGULATIONS AND GENERAL INSTRUCTIONS
4.1. 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.
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: Caution - Warning
!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.
4.2. Warranty
The warranty of the equipment and the
components we produce has duration of 2 years
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.
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.
4.3. Replacement of Parts
!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.
4.4. Description of the Appliance
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 upper
part of the appliance and contains the
control and power supply appliance 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.

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4) storage area: it is situated inside the
refrigerated compartment and is destined
for the cooling and/or freezing of
foodstuffs.
The upper 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.
10 TRAY BLAST CHILLER-SHOCK FREEZER
Model suitable to contain 10 trays with
blast chilling capacity of 28 and 18 in
shock freezing.
14 TRAY BLAST CHILLER-SHOCK FREEZER
Model suitable to contain 14 trays with
blast chilling capacity of 38 and 25 in
shock freezing.
4.5. 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) Rated output
6) Defrosting output
7) Total light output
8) Climatic class
9) Type and Amount of refrigerant gas
10) WEEE symbol
1
2
3 - 4
A
CODE /KODE
CODICE
MODEL / MODELL
MODELLO
SERIAL No/SERIEN NR.
MATRICOLA
TENSION/SPANNUNG
TENSIONE
INPUT
LEISTUNGSAUFNHAME
POTENZA
CLIMATIC CLASS
KLIMAKLASSE
CLASSE CLIMATICA
REFRIGERANT
KUEHLMITTEL
REFRIGERANTE
1
2
3
4
5
6
9
10
7
8

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The appliances are equipped with climatic class that indicates the room temperature within which the
refrigerator is operating correctly.
The following climatic classes exist:
Climatic
Class
Room
Temperature
°C
Related
Humidity
%
0 20 50
1 16 80
2 22 65
3 25 60
4 30 55
6 27 70
5 40 40
7 35 75
4.6. 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.
Micro Door
In case the door is opened,
the magnetic switch placed on the control board
opens and, during blast-chilling or shock-freezing,
evaporator fans go off ; if the opening persist for a
longer period than the one established on
parameter i2, it will appear on the display the
alarm “id” together with a sound signal (until the
door is closed).
That condition may also be determined when the
door is not perfectly aligned to or near the control
board.
High pressure safety pressure switch
In the event of room conditions
or functional anomalies, which cause the
refrigerating circuit to exceed the maximum
pressure values, the MAX safety switch is
activated, stopping the machine. When an
acceptable pressure value is reset, it is possible to
run the machine.
The alarm is represented on the display with the
code “HP”.
Protective Fuses
Some protection fuses in the general power
supply line are activated in case of overload.
Other fuses are prepared for the evaporator fans
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.
The alarm is represented on the display with the
code “HP”.
Electrical Power Supply Failure
In the event of a power failure
during a working cycle for a period exceeding the
value established on parameter A10, once
restored the electricity the display will show the
alarm “PF”.

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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 in order to
determine the necessary time for a correct
product blast chilling process. Do not forget that
acquired times have to be considered valid for
exclusive use of the same type of product and in
the same quantities per cycle.
Temperature Shock Freezing
This cycle allows
a reduction in temperature in the product core
from +90°C to -18°C in the quickest time possible
and within a MAX time equal to 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 testing temperature cycles in order to
determine the necessary time for a correct
product blast chilling process. Do not forget that
acquired times have to be considered valid for
exclusive use of the same 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.
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 Controls
Below a brief description of the functions
performed by the control panel buttons.
Blast Chilling Key
Pressing the key with machine still, allows the
selection of a temperature blast chilling cycle
(+90°C+3°C). Led and are on.
A second pressure of the key allows to select a
timed blast chilling cycle: led is off and led
turns on.
Shock Freezing Key
Pressing the key with machine still, allows the
selection of a temperature shock freezing cycle
(+90°C-18°C). ). Led and turn on.
A second pressure of the key allows to select a
timed shock freezing cycle: led is off and led
turns on.
Time 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.
If temperature chilling or freezing mode has been
selected, these keys make it possible to set the
end chilling or freezing temperature.
Start Key
Once chosen the needed cycle, it can be started
by pressing this key,
If pressed during functioning, the machine will
stop; the previously chosen cycle will persist and
can be run immediately.
By pressing this button for at least 5 seconds the
machine passes to the stand-by mode. Repeat
the procedure to reactivate the board.
DEFROST 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.
Display: symbols description
blinking: a blast chilling cycle has been
selected.
on: running blast chilling cycle.
blinking: a shock freezing cycle has been
selected.
On: running shock freezing cycle.
blinking: an intensive blast chilling or
shock freezing cycle has been selected.
on: an intensive blast chilling or shock
freezing cycle is running.
: over cooling function on
: preserving cycle on
: temperature cycle on
: timed cycle on
: defrosting cycle on
: new HACCP alarms stored
: stand-by mode

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5.3. Functioning
Temperature Blast chilling
Select the blast chilling by pressing key: led
and will blink. The display shows the end
blast chilling temperature value.
By pressing the and keys the
temperature value (+3°C) can be changed.
Insert the core probe into the product.
Press key to start. Led and will be
permanently on.
The test for the proper insertion of the probe will
start.
If the test gives a positive result, the blast chilling
cycle starts, in case of negative result the
machine will run a timed blast chilling (see proper
chapter)
During blast chilling the display shows the
temperature detected by the core probe. By
pressing the key, temperature detected by
the chamber probe can be visualized.
If the product temperature reaches the
established value within the set blast chilling time,
the cycle is considered as completed and a
preserving cycle is automatically started and an
intermittent sound confirm the correct conclusion
of the cycle.
In case the product temperature does not reach
the on parameter r5 established value, the cycle
continues: the led will blink accompanied by
an intermittent sound. To stop the alarm press a
key.
As soon as product temperature is lower than the
established value the blast chilling cycle is
considered as completed and a preserving cycle
is automatically started.
During preservation the display shows the
temperature detected by the chamber probe; LED
is switched on.
Press to conclude the preservation cycle.
Hard Temperature Blast Chilling cycle
Select blast chilling by pressing key: LEDs
and will blink. To select the hard cycle
press : LED blinks.
The display show the end blast chilling
temperature. Using and key the end
blast chilling temperature (+3°C) can be changed.
Insert the core probe into the product. Start the
cycle by pressing the key. LED ,
and are permanently on.
The test for the proper insertion of the probe will
start.
If the test gives a positive result, the blast chilling
cycle starts, in case of negative result the
machine will run a timed blast chilling (see proper
chapter)
The working set point of the hard phase is
established on parameter r9. Once the
temperature detected by the core probe
corresponds to the value established on
parameter r13, the hard phase is considered as
completed.
During blast chilling the display shows the
temperature detected by the core probe. By
pressing the key, temperature detected by
the chamber probe can be visualized.
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If the product temperature reaches the
established value within the established blast
chilling time, the cycle is considered as completed
and a preserving cycle is automatically started
and an intermittent sound confirm the correct
conclusion of the cycle.
In case the product temperature does not reach
the on parameter r5 established value, the cycle
continue: the led will blink accompanied by
an intermittent sound. To stop the alarm press a
key.
As soon as product temperature is lower than the
established value the blast chilling cycle is
considered as completed and a preserving cycle
is automatically started.
During preservation the display shows the
temperature detected by the chamber probe; LED
is switched on.
Press to conclude the preservation cycle.
Time Blast Chilling cycle
Select blast chilling cycle by pressing key
twice: LED and will blink. The
display shows the cycle duration. Using and
keys the blast chilling time can be changed.
Start the cycle by pressing: . LED and
are permanently on.
At the end of the set time, the blast chilling cycle
is concluded and the preserving cycle is
automatically started. During preservation the
display shows the temperature detected by the
chamber probe, LED is switched on.
Press to conclude the preservation cycle.
Hard Time Blast Chilling cycle
Select blast chilling cycle by pressing key
twice: LED and will blink. To select
the hard cycle press the key: LED will
blink.
Using and keys the blast chilling time
can be changed.
Start the cycle by pressing: . LED ,
and are permanently on.
The working set point of the hard phase is
established on parameter r9. At the end of the on
parameter r14 set time, the hard phase is
considered as concluded.
At the end of the set time, the blast chilling cycle
is concluded and the preserving cycle is
automatically started. During preservation the
display shows the temperature detected by the
chamber probe, LED is switched on.
Press to conclude the preservation cycle.
1
3
2
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2

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Temperature Shock Freezing
Select shock freezing by pressing key: LED
, , and blink. The display
shows the end cycle temperature. Using the and
keys the end shock freezing temperature (-18°C)
can be changed. Insert the core probe into the
product. To select the SOFT cycle press the key
. LED will turn off.
Start the cycle by pressing key . LED ,
and are permanently on.
The test for the proper insertion of the probe will
start.
If the test gives a positive result, the blast chilling
cycle starts, in case of negative result the
machine will run a timed blast chilling (see proper
chapter).
During shock freezing the display shows the
temperature detected by the core probe.
By pressing the key, temperature detected
by the chamber probe can be visualized.
If the product temperature reaches the
established value within the established time set
on parameter r6, the cycle is considered as
completed: a preserving cycle is automatically
started and an intermittent sound confirm the
correct conclusion of the cycle.
In case the product temperature does not reach
the established value within the maximum time
allowed, the cycle continue: LED blinks
accompanied by an intermittent sound. To stop
the alarm press any key.
As soon as product temperature is lower than the
established value the shock freezing cycle is
considered as completed and a preserving cycle
is automatically started.
During preservation the display shows the
temperature detected by the chamber probe; LED
is switched on.
Press to conclude the preservation cycle.
Time Shock Freezing
Select the freezing process pressing twice the
button , the leds , , and
blink. The display shows the time of the cycle.
Using the buttons and you can change
the time of freezing
To select a soft cycle, press the button :
the LED will turn off.
To start the cycle, press the button :. The
leds, ,and remain lit steadily.
At the end of the setted time, the freezing cycle is
completed and automatically starts a cycle of
conservation.
During the storage phase the display shows the
temperature measured by the room probe, the
LED is turned on.
Press the button to end the cycle of
conservation.
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2
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2

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Time Defrosting
Select defrosting by pressing key twice:
LED , ,and blink. The
display shows the cycle duration. By using the
and keys, the freezing time can be
changed.
To select the SOFT cycle press the key.
LED will turn off.
Start the cycle by pressing key . LED
,and are permanently on.
Once the set time is over, the shock freezing cycle
is considered as completed and a preserving
cycle is automatically started.
During preservation the display shows the
temperature detected by the chamber probe;
LED is switched on.
Press to conclude the preservation cycle.
Cooling Cycle
Select the cooling cycle by pressing for two
seconds key: LED blinks: a cooling
cycle will be started. The working set point is
established on parameter r12. When the chamber
temperature reaches the set value, the cycle
continue, LED is permanently on
accompanied by a one second sound signal.
Defrosting
First make sure there is no preservation cycle
running. Press for at least four seconds key :
LED will be switched on.
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 using key.
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2

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Keyboard lock
It is possible to lock the keyboard. By pressing the
keys and for a second: the display will
show “Loc” for one second.
To unlock the keyboard, press the keys and
for a second: the display will show “Unl” for
one second.
Display of Temperatures
Make sure the keyboard is not blocked and that
there is no cycle running.
Press key for a second: the display
shows the first available message.
By using keys and select the
“Pb1” message (chamber probe).
Press to visualize the value
detected by the chamber probe.
Pressing the display will again show
“Pb1”.
Press key: the display will show the
message “Pb2” (core probe).
Press to visualize the value
detected by the core probe.
Pressing the display will again show
“Pb2”.
Press key: the display will show the
message “Pb4” (condenser probe).
Press to visualize the value
detected by the condenser probe.
Core Probe Heating
Make sure the keyboard is not blocked and there
is no cycle running.
Press key for a second: LED blinks and
LED turns on.
When the temperature detected by the core probe
reaches the value established on parameter u7,
the cycle is concluded, a sound signal is activated
for one second.
HACCP Alarms
The device can store up to 9 different HACCP
alarms, thereafter a new one will overwrite the
oldest one. The device gives following
information:
Alarm code
critical value
date and time when die alarm occurred
Alarm duration (from 1 min to 99h and 59
min, partial if the alarm is still active).
Below a list of existing codes:
time: temperature blast chilling/shock
freezing alarm, the cycle exceeded the
time limit. the alarm stores the
temperature detected by the core probe at
the end of the established time.
AH: maximum temperature alarm during
preservation. The alarm stores the
maximum temperature of the chamber
probe.
PF power supply failure during
preservation. The alarm stores the room
temperature when restoring electricity.
To avoid having to memorize power failure
alarms repeatedly, disconnect the power supply
when the tool is in stand-by mode.
If the duration of the power failure alarm is
such that it causes a clock error (code “rtc”), the
device will not provide any information regarding
the duration of the alarm

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HACCP alarms display
Make sure the keyboard is not locked.
Keep the key pressed for 1 second: the
screen will display the letters "rtc".
Press the key repeatedly until the letters "LS"
appear.
Press the key: the screen will display the
code for the most recent alarm (in other words
one of the codes listed above followed by number
"1"; the greater the number that follows the code
for the alarm, the older it is). With the and
keys it is possible to scan the various
memorised alarms.
To select an alarm press the key: the
led will stop flashing and stay on steadily, the
screen will display the following information in
sequence :
8.0 the critical value is 8.0 °C/8 °F
StA the screen is about to display the
date and time when the alarm
was set off
y09 the alarm was set off in 2009
(continue ...)
n03 the alarm was set off in the month of
March (continue ...)
d26 the alarm was set off on March 26,
2009
h16 the alarm was set off at16:00
(continue ...)
n30 the alarm was set off at16:30
(continue ...)
dur the screen will display the duration of
the alarm
h01 the alarm lasted for 1 h (continue ...)
n15 the alarm lasted for 1 h and 15 min
AH3 the selected alarm
The screen displays every piece of information for
1 second.
To exit the sequence of information: press and
release the key, the screen displays the
selected alarm (“AH3” in the example).
To exit the procedure press the key: the
screen will display the temperature read by the
cold room probe again.
If the tool does not have any alarms in its
memory, the “LS” label will not be displayed.
Cancelling the list of HACCP alarms
Make sure the keyboard is not locked.
Keep the key pressed for 1 second: the
screen will display the letters "rtc".
Press the key repeatedly until the letters
"rLS" appear.
Press the key: the password will be
requested in order to cancel the alarms from the
memory.
With the and keys enter the password
149 : press the key to confirm the deletion of
the alarms.
If the tool does not have any alarms in its
memory, the “rLS” label will not be displayed.
Compressor operating hours
The tool is capable of memorising up to 9,999
hours of compressor operation, after which the
number “9999” will flash.
To view the hours of compressor operation follow
the instructions below.
Make sure the keyboard is not locked.
Keep the key pressed for 1 second: the
screen will display the letters "rtc".
Press the key repeatedly until the letters
"CH" appear.
Press the key to view the data.
To reset the counter to zero follow the instructions
below.
Make sure the keyboard is not locked.
Keep the key pressed for 1 second: the
screen will display the letters "rtc".
Press the key repeatedly until the letters
"rCH" appear.
Press the key: the password is required in
order to reset the counter to zero.

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With the and keys enter the password 149 : press the key to confirm.
Time and Date SET
Make sure the keyboard is not locked.
Press the button for one second, the display
will show the first label available
Press the button or until the display
shows "rtc".
Press and release the button : the display
will show "yy" followed by the last two numbers of
the year and the LED will flash. Using the
button or you can set the current year.
Press the button to save the data and move
to the modification of the month : the display will
show “nn” followed by the two numbers of the
month. Using the button or you can set
the current month.
Press the button to save the data and move
to the modification of the day : the display will
show "dd" followed by the numbers of the day.
Using the button or you can set the
current day.
Press the button to save the data and move
to the modification of the hour : the display will
show "hh" followed by the two numbers of the
hour. Using the button or you can set
the current hour.
Press the button to save the data and
move to the modification of the minutes : the
display will show “nn” followed by the two
numbers of the minutes. The time is shown in 24
hour format. With the button or you can
set the correct value.
Press and release the button or do not
operate for 15 seconds, the LED will turn off.
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 advisable 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.
Products that are more difficult to chill
because of their composition and size should be
placed in the centre.

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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 chilling or shock freezing, always wear
gloves to protect the hands, as "burns" may occur
from the cold.
Blast chilling Cycle
With this operating modality the chiller keeps the
temperature of the refrigerating compartment
close to zero during the entire chilling process in
order to ensure a gradual drop in the temperature
of the product to +3°C. In this way, ice crystals do
not form on the surface of the product. This blast
chilling method should be used preferably for
products that are not packed and whose
physical/organoleptic characteristics could be
damaged by the formation of superficial ice (e.g.
fish).
Shock freezing Cycle
With this blast chilling modality the blast chiller
maintains the temperature at a negative value
below -18°C which is the end temperature of
shock freezing. 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.
6. CLEANING AND MAINTENANCE
6.1. Recommendations for Cleaning and Maintenance
!Activate all envisioned safety devices before
carrying out any maintenance interventions. In
particular, deactivate the electrical power supply
using the automatic isolating switch.
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.

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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.
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 tray supports;
the appliance.
6.3. Extraordinary maintenance
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
Check functioning of the board and
probes.
Check the efficiency of the electrical
system.
Clean the evaporator.
Clean the condenser.
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:
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
A
B
C
D
B

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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.
Fuse replacement and thermal relay rearm
The fuses (A) and the thermal relay (B) are
in the upper part of the blast chiller. To access
these just open the control panel (C) by loosening
the two screws (D) positioned in the lower part of
the control panel and rotating it upwards. After
opening, make sure that it does not fall back
down.
B
C
D
A
Rearm the heat relay using
the grey button
C
B
D
CC A

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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
The refrigerator unit does not start No voltage
Check the power supply cable.
Check fuses.
Check the correct connection of the
appliance.
Other causes If the problem persists,
contact the after-sales centre.

The refrigerator unit functions
continuously, cooling insufficiently
Room too hot Air the environment
Dirty condenser clean the condenser
Insufficient door sealing check the gaskets
Insufficient quantity of
refrigerant gas Contact the after-sales
centre.
Condenser fan at a standstill Contact the after-sales
centre.
Evaporator fan standstill Contact the after-sales
centre.
Problem Causes Solutions
The refrigerator unit does not stop Probe faulty Contact the after-sales
centre.
Circuit board fault Contact the after-sales
centre.
Presence of ice inside the
evaporator
Carry out a defrosting cycle possibly
with the door open.
If the problem persists,
contact the after-sales centre.

Appliance noise Persistent vibrations
check there is no contact between
the appliance and other objects
inside or outside
