Evco EVF815 User guide

Evco S.p.A. EVF815 | Installer manual ver. 1.1 | Code 144F815E114
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EVF815
Split execution controller for
temperature-controlled blast chillers
(with capacitive touch-key user interface,
which can be integrated into the unit)
ENGLISH
INSTALLER MANUAL ver. 1.1
CODE 144F815E114

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Important
Important
Read this document thoroughly before installation and before use of the device and follow all recommendations; keep
this document with the device for future consultation.
The following symbols support reading of the document:
indicates a suggestion
indicates a warning
The device must be disposed of in compliance with local Standards regarding the collection of electric and electronic
equipment.

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Index
1INTRODUCTION ................................................................................................................................. 2
1.1 Introduction....................................................................................................................................... 2
1.2 Summary table of the main features and the models available ................................................................. 2
2DESCRIPTION .................................................................................................................................... 2
2.1 Description of the user interface........................................................................................................... 2
2.2 Description of the control module ......................................................................................................... 2
3DIMENSIONS AND INSTALLATION ........................................................................................................ 2
3.1 User interface dimensions.................................................................................................................... 2
3.2 Control module dimensions.................................................................................................................. 2
3.3 User interface installation .................................................................................................................... 2
3.4 Control module installation .................................................................................................................. 2
3.5 Installation warnings .......................................................................................................................... 2
4ELECTRIC CONNECTION...................................................................................................................... 2
4.1 Electric connection.............................................................................................................................. 2
4.1.1 Connection of the terminating resistors.........................................................................................2
4.2 Warnings for the electric connection ..................................................................................................... 2
5USER INTERFACE ............................................................................................................................... 2
5.1 Foreword........................................................................................................................................... 2
5.2 Switching the device on/off.................................................................................................................. 2
5.3 The display........................................................................................................................................ 2
5.4 Cabinet temperature display ................................................................................................................ 2
5.5 Display of the temperature detected by the needle probe ........................................................................ 2
5.6 Evaporator temperature display ........................................................................................................... 2
5.7 Defrosting activation in manual mode ................................................................................................... 2
5.8 Switch-on/off of the cabinet light in manual mode .................................................................................. 2
5.9 Locking/unlocking the keyboard ........................................................................................................... 2
5.10 Silencing the buzzer ....................................................................................................................... 2
6OPERATION ....................................................................................................................................... 2
6.1 Foreword........................................................................................................................................... 2
6.2 Blast chilling and storage..................................................................................................................... 2
6.3 Hard blast chilling and storage ............................................................................................................. 2
6.4 Deep freezing and storage................................................................................................................... 2
6.5 Soft deep freezing and storage............................................................................................................. 2
6.6 Pre-cooling start-up............................................................................................................................ 2
6.7 Management of the test regarding correct insertion of the needle probe.................................................... 2
6.8 Switching on UV light for sterilisation cycle ............................................................................................ 2
6.9 Heating the needle probe .................................................................................................................... 2
7“HACCP” FUNCTION............................................................................................................................ 2
7.1 Foreword........................................................................................................................................... 2
7.2 Display of information relative to the HACCP alarms ............................................................................... 2
7.3 Deleting the information relative to the HACCP alarms ............................................................................ 2
8COMPRESSOR OPERATING HOURS COUNT ............................................................................................ 2
8.1 Display of compressor operating hours.................................................................................................. 2
8.2 Deleting the compressor operating hours .............................................................................................. 2
9CONFIGURATION................................................................................................................................ 2
9.1 Setting the real date and time.............................................................................................................. 2
9.2 Setting the configuration parameters .................................................................................................... 2

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9.3 Restoring the factory settings .............................................................................................................. 2
9.4 List of configuration parameters ........................................................................................................... 2
10 SIGNALS AND INDICATIONS................................................................................................................ 2
10.1 Signals ......................................................................................................................................... 2
10.2 Indications .................................................................................................................................... 2
11 ALARMS ............................................................................................................................................ 2
11.1 Alarms.......................................................................................................................................... 2
12 ERRORS ............................................................................................................................................ 2
12.1 Errors ........................................................................................................................................... 2
13 ACCESSORIES ................................................................................................................................... 2
13.1 EVKEY programming key................................................................................................................. 2
13.1.1 Introduction .............................................................................................................................. 2
13.1.2 Description................................................................................................................................ 2
13.1.3 Dimensions ............................................................................................................................... 2
13.1.4 Uploading the configuration parameters ........................................................................................ 2
13.1.5 Downloading the configuration parameters.................................................................................... 2
13.2 Non-optoisolated RS-485/TTL serial interface EVIF20TSX .................................................................... 2
13.2.1 Introduction .............................................................................................................................. 2
13.2.2 Description................................................................................................................................ 2
13.2.3 Dimensions ............................................................................................................................... 2
13.2.4 Connection to the device............................................................................................................. 2
13.3 EVPROG01 connection kit ................................................................................................................ 2
13.3.1 Introduction .............................................................................................................................. 2
13.3.2 Description................................................................................................................................ 2
13.3.3 Dimensions ............................................................................................................................... 2
13.3.4 Connection to the device............................................................................................................. 2
14 TECHNICAL DATA ............................................................................................................................... 2
14.1 Technical data ............................................................................................................................... 2

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1INTRODUCTION
1.1 Introduction
EVF815 is a digital controller studied to manage temperature-controlled blast chillers, which can be mechanically and
aesthetically integrated into the unit.
The controller is fitted with:
- clock
- signal buzzer and alarm
- 3 analogue inputs (cabinet probe, needle probe and evaporator probe) for PTC/NTC probes
- 2 digital inputs (door micro switch and high pressure)
- 5 digital outputs (electromechanical relays), 1 x 30 A res. @ 250 VAC for compressor management, 2 x 16 A
res. @ 250 VAC for management or defrosting and a utility set for door heating elements or the condenser fan,
2 x 8 A res. @ 250 VAC for management of the evaporator fan and a fifth utility that can be set for the cabinet
light, needle probe heating or UV light; defrosting can be electric, hot air, air or air with door open
- serial port with MODBUS communication protocol.
The device can manage both temperature and timed blast chilling and storage cycles and deep freezing and storage
cycles and also the hard and soft types.
Every operating cycle can be preceded by pre-cooling; the temperature-controlled cycles are also preceded by a two-
stage test for verification of the correct insertion of the needle probe.
The device is available in “split” execution (user interface + control module).
The user interface is behind a Plexiglas sheet and is made up from a custom 4 digit display (with function icons) and 6
capacitive touch-keys; installation is envisioned on rear of panel with biadhesive tape.
The control module is without cover and installation is envisioned on flat surface with spacers.
Via the "HACCP" function, up to 9 events can be memorised for each of the 3 HACCP alarms (temperature-controlled
blast chilling or deep freezing not concluded within the maximum duration alarm, maximum temperature during
storage alarm and power cut during storage alarm); the critical value, date and time at which the alarm occurred and
the duration can be memorised for each HACCP alarm.
The configuration parameters can be uploaded and downloaded using the EVKEY programming key (to be ordered
separately).
Via a serial interface (to be ordered separately), it is also possible to connect the controller to the Parameters Manager
set-up software system, to the monitoring and surveillance system of the RICS plants or to the data recording device,
to download the recorded data (via USB), to upload and download EVUSBREC01 configuration parameters.
The following are indicated among the many other features:
- IP65 protection rating of the user interface
- direct loads connection (except the utility managed by the fifth digital output)
- management of three types of backlight
- memorisation of the defrosting interval
- management of temperature alarms
- compressor operating hours count
- "keyboard lock" function.

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1.2 Summary table of the main features and the models
available
The following table illustrates the main features of the device and the models available.
“ / “ indicates the feature can be set via a configuration parameter.
User interface (without cover) EVF815
290.0 x 50.5 mm (11.417 x 1.988 in; L x H) •
custom 4 digit display (with function icon) •
number of keys (capacitive touch-key type) 6
°C decimal point •
Control module (without cover) EVF815
99.0 x 108.0 mm (3.897 x 10.798 cm; L x H) •
Connections EVF815
faston + fixed screw terminal board •
Power supply EVF815
115... 230 VAC •
Analogue inputs EVF815
cabinet probe PTC/NTC
needle probe PTC/NTC
evaporator probe PTC/NTC
Digital inputs (for NO/NC contact) EVF815
door micro switch •
high pressure •
Digital outputs (electromechanical relays; A res. @
250 VAC) EVF815
compressor 30 A
defrosting 16 A

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evaporator fan 8 A
door heating elements/condenser fan 16 A
cabinet light/needle probe heating/UV light 8 A
Communication port EVF815
serial port with MODBUS communication protocol •
Other features EVF815
protection rating of the user interface IP65
clock •
signal buzzer and alarm •
direct loads connection except for the utility managed by the fifth digital output
management of three types of backlight •
management of blast chilling and storage/deep freezing
and storage cycles •
management of temperature/time controlled operation
cycles •
hard/soft operating cycles management •
management of the test regarding correct insertion of
the needle probe •
memorisation of the defrosting interval •
management of temperature alarms •
compressor operating hours count •
“HACCP” function •
"keyboard lock" function •
configuration parameters access password •
restoring the factory settings •

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Codes EVF815
codes EVF815P9
For further information, see chapter 14 "TECHNICAL DATA"; for other models contact the Evco sales network.

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2DESCRIPTION
2.1 Description of the user interface
The following drawing illustrates the aspect of the EVF815 user interface.
The following table illustrates the meaning of EVF815 user interface parts.
Part Meaning
1 communication port with the control module (signal)
2 blast chilling key
3 defrosting/auxiliary key, hereon also called “DEEP FREEZING key”
4 hard blast chilling or soft deep freezing key, hereon called HARD/SOFT" key
5 display
6 decrease key, hereon call "DOWN key"
7 increase key, hereon call "UP key"
8 switch-on/switch-off/cycle start/cycle cut-off key, hereon called "START/STOP key"
9 communication port with the control module (power supply)
For further information, see the next chapters.

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2.2 Description of the control module
The following drawing illustrates the aspect of the EVF815 control module.
The following table illustrates the meaning of EVF815 control module parts.
Part Meaning
1 serial port with MODBUS communication protocol
2 communication port with the user interface (signal and power supply)
For further information, see the next chapters.

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3DIMENSIONS AND INSTALLATION
3.1 User interface dimensions
The following drawing illustrates the EVF815 user interface dimensions; these are expressed in mm (in).
3.2 Control module dimensions
The following drawing illustrates the EVF815 control module dimensions; these are expressed in mm (in).

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3.3 User interface installation
Rear of panel, with biadhesive tape.
3.4 Control module installation
On flat surface, with spacers.
3.5 Installation warnings
- make sure that the device work conditions (temperature of use, humidity, etc.) lie within the limits indicated;
see chapter 14 "TECHNICAL DATA"
- do not install the device near to any heat sources (heating elements, hot air ducts etc.), equipment containing
powerful magnets (large diffusers, etc), areas affected by direct sunlight, rain, humidity, excessive dust,
mechanical vibrations or shocks.
- any metal parts in proximity of the control module must be at a distance such that they do not compromise the
safety distances.
- in compliance with Safety Standards, the device must be installed correctly and in a way to protect against any
contact with electric parts; all parts that ensure protection must be fixed in a way that they cannot be removed
without the use of tools.

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4ELECTRIC CONNECTION
4.1 Electric connection
The following drawing illustrates the EVF815 electric connection.
The utility managed by the K4 output, depends on parameter u1, as follows:
- door heating elements (u1 = 0, pre-defined setting)
- condenser fan (u1 = 1).
For the settings relative to the parameters, see chapter 9 “CONFIGURATION”.
The utility managed by the K5 output, depends on parameter u11, as follows:
- cabinet light (u11 = 0, pre-defined setting)
- needle probe heating (u11 = 1)
- UV light (u11 = 2).
For the settings relative to the parameters, see chapter 9 “CONFIGURATION”.
The serial port is for the connection of the controller to the following additional products:
- EVKEY programming key
- Parameters Manager set-up software system
- RICS plants monitoring and surveillance systems
- Device for recording data, for downloading the data recorded (via USB), for uploading and downloading
EVUSBREC01 configuration parameters.
The port must not be used simultaneously with more that one of these products.

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4.1.1 Connection of the terminating resistors
The terminating resistor must be connected in order to reduce the reflections on the signal transmitted along the
cables that connect the user interface to the control model.
To connect the terminating resistors, position the jumper as illustrated in the following drawing.
To disconnect the terminating resistors, position the jumper as illustrated in the following drawing.
4.2 Warnings for the electric connection
- do not use electric or pneumatic screwdrivers on the device terminal board
- if the device has been taken from a cold to hot place, humidity could condense inside; wait about 1 hour before
powering it
- make sure that the power supply voltage, the frequency and the operational electric power of the device,
correspond with those of the local power supply; see chapter 14 "TECHNICAL DATA"
- disconnect the device power supply before proceeding with any type of maintenance
- do not use this device as a safety device
- for repairs and information regarding the device, contact the EVCO sales network.

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5USER INTERFACE
5.1 Foreword
The following operating status exist:
- the “off” status (the device is not powered)
- the “stand-by” status (the device is powered and is off)
- the “on” status (the device is powered, is on and is in stand-by for the start-up of an operating cycle)
- the “run” status (the device is powered, is on and an operating cycle is in progress).
Hereon, the term "device switch-on" means the passage from the "stand-by" status to the "on" status. The term
"switch-off" means passage from the "on" status to the "stand-by" status.
If a power cut occurs during the "stand-by" status or during the "on" status, the device will repropose the same status
when the power supply is restored.
If a power cut occurs during the "run" status, the device will operate as follows when the power supply is restored:
- if a temperature-controlled blast chilling or deep freezing operation was in progress, these will be started again
from the beginning
- if a timed-controlled blast chilling or deep freezing operation was in progress, these will be started again from
the moment the power supply was cut-off
- if storage was in progress, this will be re-proposed.
5.2 Switching the device on/off
Operate as follows:
1. Make sure that the keyboard is not locked and that no procedure is in progress.
2. Hold the START/STOP key down for 1 s: the LED will switch on/off.
5.3 The display
The display is off during the "off" status and during the "stand-by" status.
The display shows the cabinet temperature during the "on" status.
The device will operate as follows during the "run" status:
- if a temperature-controlled blast chilling or deep freezing operation is in progress, the display will show the
temperature detected by the needle probe
- if a time-controlled blast chilling or deep freezing operation is in progress, the display will show the residual
time of the duration of the same
- if storage is in progress, the display will show the cabinet temperature.
5.4 Cabinet temperature display
Operate as follows:
1. Make sure that the keyboard is not locked and that no procedure is in progress.
2. Hold the DOWN key down for 1 s: the display will show the first label available.
3. Press and release the UP or DOWN key to select “Pb1”.
4. Press and release the BLAST CHILLING key: the display will show the cabinet temperature.
Operate as follows to exit the procedure:
5. Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show “Pb1” again.
6. Press and release the UP or DOWN key until the display shows the magnitude indicated in paragraph 5.3 "The
display" or do not operate for 60 s.

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5.5 Display of the temperature detected by the needle
probe
Operate as follows:
1. Make sure that the keyboard is not locked and that no procedure is in progress.
2. Hold the DOWN key down for 1 s: the display will show the first label available.
3. Press and release the UP or DOWN key to select “Pb2”.
4. Press and release the BLAST CHILLING key: the display will show the temperature detected by the needle
probe.
Operate as follows to exit the procedure:
5. Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show “Pb2” again.
6. Press and release the UP or DOWN key until the display shows the magnitude indicated in paragraph 5.3 "The
display" or do not operate for 60 s.
If the needle probe is not enabled, i.e. if parameter P3 is set at 0, the “Pb2“ label will not be displayed.
5.6 Evaporator temperature display
Operate as follows:
1. Make sure that the keyboard is not locked and that no procedure is in progress.
2. Hold the DOWN key down for 1 s: the display will show the first label available.
3. Press and release the UP or DOWN key to select “Pb3”.
4. Press and release the BLAST CHILLING key: the display will show the evaporator temperature.
Operate as follows to exit the procedure:
5. Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show “Pb3” again.
6. Press and release the UP or DOWN key until the display shows the magnitude indicated in paragraph 5.3 "The
display" or do not operate for 60 s.
If the evaporator probe is not enabled, i.e. if parameter P4 is set at 0, the “Pb3“ label will not be displayed.
5.7 Defrosting activation in manual mode
Operate as follows:
1. Make sure the device is in the "on" status or a storage is in progress.
2. Make sure that the keyboard is not locked and that no procedure is in progress.
3. Hold the UP key down for 4 s: the LED will switch on.
If the evaporator probe is enabled, i.e. the parameter P4 is set at 1 and on activation of defrosting the evaporator
temperature is above that established with parameter d2, defrosting will not be activated.
5.8 Switch-on/off of the cabinet light in manual mode
Operate as follows:
1. Make sure that parameter u11 is set at 0.
2. Make sure no procedures are in progress
3. Press and release the DEEP FREEZING key for 1 sec.: the AUX LED will switch on/off.

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5.9 Locking/unlocking the keyboard
Operate as follows to lock the keyboard:
1. Make sure no procedures are in progress
2. Hold the DOWN key and the START/STOP key down for 1 s: the display will show “Loc” for 1 s.
The following operations will not be allowed if the keyboard is locked:
- switching the device on/off
- cabinet temperature display (with the procedure given in paragraph 5.4)
- display of the temperature detected by the needle probe (with the procedure given in paragraph 5.5)
- evaporator temperature display
- defrosting activation in manual mode
- operating cycle start-up/cut-off
- switching on UV light for sterilisation cycle
- heating the needle probe
- display of information relative to the HACCP alarms
- deleting the information relative to the HACCP alarms
- display of compressor operating hours
- deleting the compressor operating hours
- setting the real date and time.
Operate as follows to unlock the keyboard:
1. Make sure no procedures are in progress
2. Hold the DOWN key and the START/STOP key down for 1 s: the display will show “UnL” for 1 s.
5.10 Silencing the buzzer
Operate as follows:
1. Make sure no procedures are in progress
2. Press and release the key.

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6OPERATION
6.1 Foreword
The devices can manage the following operating cycles:
- blast chilling and storage
- hard blast chilling and storage
- deep freezing and storage
- soft deep freezing and storage.
For further information, see the next paragraphs
Every operating cycle can be preceded by pre-cooling; see paragraph 6.6 "Pre-cooling".
The temperature-controlled cycles are preceded by a test to verify the correct insertion of the needle probe; see
paragraph 6.7 " Test for verification of the correct insertion of the needle probe".
If the needle probe is not enabled, i.e. if parameter P3 is set at 0, the temperature-controlled cycles will be started
with time-control.
The following functions can also be used:
- switching on sterilisation cycle UV light
- heating the needle probe.
For further information, see the next paragraphs
6.2 Blast chilling and storage
The temperature-controlled blast chilling and storage cycle is divided into the following two phases:
- blast chilling
- storage
On conclusion of a phase, the device passes automatically to the next.
Operate as indicated to start the cycle:
1. Make sure the device is in the "on" status.
2. Make sure that the keyboard is not locked and that no procedure is in progress.
3. Press and release the BLAST CHILLING key: the LED will flash.
4.1 If parameter r19 is set at 0, the display will show the work set-point during blast chilling; this value can also be
set via parameter r7.
4.2 If parameter r19 is set at 1, the display will show the blast chilling end temperature; this value can also be set
via parameter r3.
4.3 Press and release the UP or DOWN key within 15 s to modify the parameter value.
5. Press and release the START/STOP key: the LED will remain permanently on and the test to verify the
correct insertion of the needle probe will be started; see paragraph 6.7 " Test for verification of the correct
insertion of the needle probe".
5.1 If the test is completed successfully, the cycle will be started.
The maximum blast chilling duration count is started on condition that the temperature detected by the
needle probe is below that established with parameter r15.
5.2 If the test is not completed successfully, the cycle will be started with timed-control.
During blast chilling, the display shows the residual time of the blast chilling duration and the LED is
on.
To modify the residual time, operate as indicated:
5.2.1 Press and release the UP or DOWN key again to modify the time value: the display will flash.
5.2.2 Do not operate for 4 s: the display will stop flashing and remain on permanently.
The successive parameters establish the following values:
- parameter r1 establishes blast chilling duration

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- parameter r7 establishes the work set-point during blast chilling.
Operate as indicated to stop the cycle:
6. Hold the START/STOP key down.
During blast chilling, the display shows the temperature detected by the needle probe and the LED is on.
The successive parameters establish the following values:
- parameter r3 establishes the blast chilling end temperature
- parameter r5 establishes the maximum blast chilling duration
- parameter r7 establishes the work set-point during blast chilling.
To display the cabinet temperature, press and release the BLAST CHILLING, DEEP FREEZING or the HARD/SOFT key;
to restore the normal display, press and release the same key again or do not operate for 15 s.
If the temperature detected by the needle probe reaches the blast chilling end temperature within the maximum blast
chilling duration, it means that blast chilling has been completed successfully, the device will automatically pass to
storage and the buzzer will be activated for the period of time established with parameter AA.
Press and release a key to silence the buzzer.
During storage, the display shows the temperature detected by the cabinet and the LED is on.
Parameter r10 establishes the work set-point during storage.
If the temperature detected by the needle probe does not reach the blast chilling end temperature within the
maximum blast chilling duration, blast chilling will not be completed successfully but will continue, the LED will
flash and the buzzer will be activated.
Press and release a key to restore normal display and to silence the buzzer.
To display the cabinet temperature, press and release the BLAST CHILLING key; to restore the normal display, press
and release the BLAST CHILLING key again or do not operate for 15 s.
When the temperature detected by the needle probe reaches the blast chilling end temperature, the device
automatically passes to storage in the same way as illustrated previously.
6.3 Hard blast chilling and storage
The temperature-controlled hard blast chilling and storage cycle is divided into the following three phases:
- blast chilling hard phase
- blast chilling
- storage
On conclusion of a phase, the device passes automatically to the next.
Operate as indicated to start the cycle:
1. Make sure the device is in the "on" status.
2. Make sure that the keyboard is not locked and that no procedure is in progress.
3. Press and release the BLAST CHILLING key: the LED will flash.
4. Press and release the HARD/SOFT key: the HARD LED will flash.
5.1 If parameter r19 is set at 0, the display will show the work set-point during blast chilling; this value can also be
set via parameter r7.
5.2 If parameter r19 is set at 1, the display will show the blast chilling end temperature; this value can also be set
via parameter r3.
5.3 Press and release the UP or DOWN key within 15 s to modify the parameter value:
6. Press and release the START/STOP key: the LED and the HARD LED will remain permanently on and the test
to verify the correct insertion of the needle probe will be started; see paragraph 6.7 " Test for verification of the
correct insertion of the needle probe".
6.1 If the test is completed successfully, the cycle will be started.
The maximum blast chilling duration count is started on condition that the temperature detected by the
needle probe is below that established with parameter r15.
6.2 If the test is not completed successfully, the cycle will be started with timed-control.

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During the hard blast chilling phase, the display shows the residual time of the blast chilling duration and
the LED is on.
To modify the residual time, operate as indicated:
6.2.1 Press and release the UP or DOWN key again to modify the time value: the display will flash.
6.2.2 Do not operate for 4 s: the display will stop flashing and remain on permanently.
The successive parameters establish the following values:
- parameter r9 establishes the work set-point during the hard blast chilling phase
- parameter r14 establishes hard blast chilling phase duration.
During blast chilling, the display shows the residual time of the blast chilling duration and the LED is
on.
The successive parameters establish the following values:
- parameter r1 establishes blast chilling duration
- parameter r7 establishes the work set-point during blast chilling.
Operate as indicated to stop the cycle:
7. Hold the START/STOP key down.
During hard blast chilling, the display shows the temperature detected by the needle probe and the LED is on.
The successive parameters establish the following values:
- parameter r5 establishes the maximum blast chilling duration
- parameter r9 establishes the work set-point during the blast chilling hard phase
- parameter r13 establishes blast chilling hard phase end temperature.
To display the cabinet temperature, press and release the BLAST CHILLING, DEEP FREEZING or the HARD/SOFT key;
to restore the normal display, press and release the same key again or do not operate for 15 s.
When the temperature detected by the needle probe reaches the hard blast chilling phase end temperature, the device
automatically passes to blast chilling mode.
During blast chilling, the display shows the temperature detected by the needle probe and the LED is on.
The successive parameters establish the following values:
- parameter r3 establishes the blast chilling end temperature
- parameter r5 establishes the maximum blast chilling duration
- parameter r7 establishes the work set-point during blast chilling.
To display the cabinet temperature, press and release the BLAST CHILLING key; to restore the normal display, press
and release the BLAST CHILLING key again or do not operate for 15 s.
If the temperature detected by the needle probe reaches the blast chilling end temperature within the maximum blast
chilling duration, it means that blast chilling has been completed successfully, the device will automatically pass to
storage and the buzzer will be activated for the period of time established with parameter AA.
Press and release a key to silence the buzzer.
During storage, the display shows the temperature detected by the cabinet and the LED is on.
Parameter r10 establishes the work set-point during storage.
If the temperature detected by the needle probe does not reach the blast chilling end temperature within the
maximum blast chilling duration, blast chilling will not be completed successfully but will continue, the LED will
flash and the buzzer will be activated.
Press and release a key to restore normal display and to silence the buzzer.
To display the cabinet temperature, press and release the BLAST CHILLING key; to restore the normal display, press
and release the BLAST CHILLING key again or do not operate for 15 s.
When the temperature detected by the needle probe reaches the blast chilling end temperature, the device
automatically passes to storage in the same way as illustrated previously.