EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
EVF818
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. 1.0
CODE 144F818E104
page 1 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
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.
page 2 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
Index
1
INTRODUCTION ...................................................................................................................................6
1.1
Introduction ....................................................................................................................................6
1.2
Summary table of the main features and the models available...............................................................7
2
DESCRIPTION....................................................................................................................................10
2.1
Description of the user interface.......................................................................................................10
2.2
Description of the control module.....................................................................................................11
3
DIMENSIONS AND INSTALLATION........................................................................................................13
3.1
User interface dimensions ...............................................................................................................13
3.2
Control module dimensions .............................................................................................................13
3.3
User interface installation................................................................................................................14
3.4
Control module installation..............................................................................................................14
3.5
Installation warnings ......................................................................................................................14
4
ELECTRIC CONNECTION......................................................................................................................15
4.1
Electric connection .........................................................................................................................15
4.1.1 Connection of the terminating resistors.........................................................................................16
4.2
Warnings for the electric connection .................................................................................................16
5
USER INTERFACE...............................................................................................................................17
5.1
Foreword.......................................................................................................................................17
5.2
Switching the device on/off .............................................................................................................17
5.3
The display....................................................................................................................................17
5.4
Cabinet temperature display............................................................................................................18
5.5
Evaporator temperature display .......................................................................................................18
5.6
Condenser temperature display........................................................................................................18
5.7
Display of the temperature detected by needle probe 1, needle probe 2 and needle probe 3....................19
5.8
Defrosting activation in manual mode...............................................................................................19
5.9
Switch-on/off of the cabinet light in manual mode..............................................................................19
5.10 Locking/unlocking the keyboard.......................................................................................................19
5.11 Silencing the buzzer .......................................................................................................................20
6
OPERATION.......................................................................................................................................21
6.1
Foreword.......................................................................................................................................21
6.1.1 Foreword regarding needle probe .................................................................................................21
6.2
Temperature-controlled blast chilling and storage...............................................................................21
6.3
Temperature-controlled hard blast chilling and storage .......................................................................22
6.4
Time-controlled blast chilling and storage..........................................................................................24
6.5
Time-controlled hard blast chilling and storage ..................................................................................24
6.6
Continuous blast chilling..................................................................................................................25
6.7
Temperature-controlled deep freezing and storage .............................................................................26
6.8
Temperature-controlled soft deep freezing and storage.......................................................................27
6.9
Time-controlled deep freezing and storage ........................................................................................28
6.10 Time-controlled soft deep freezing and storage ..................................................................................29
6.11 Continuous deep freezing................................................................................................................30
6.12 Blast chilling/deep freezing intensity.................................................................................................30
6.12.1 Selecting the evaporator fan speed...............................................................................................31
6.13 Pre-cooling start-up........................................................................................................................32
6.14 Management of the test regarding correct insertion of the needle probe................................................32
6.15 Switching on UV light for sterilisation cycle........................................................................................32
6.16 Needle probe heating......................................................................................................................32
page 3 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
6.17
Data print-out................................................................................................................................33
7
“PROGRAMS” FUNCTION .....................................................................................................................34
7.1
Foreword.......................................................................................................................................34
7.2
Memorisation of a program..............................................................................................................34
7.3
Execution of a program...................................................................................................................34
8
“HACCP” FUNCTION............................................................................................................................36
8.1
Foreword.......................................................................................................................................36
8.2
Display of information relative to the HACCP alarms ...........................................................................36
8.3
Deleting the information relative to the HACCP alarms........................................................................37
9
COMPRESSOR OPERATING HOURS COUNT............................................................................................38
9.1
Display of compressor operating hours..............................................................................................38
9.2
Deleting the compressor operating hours ..........................................................................................38
10
CONFIGURATION ...............................................................................................................................39
10.1 Setting the real date and time .........................................................................................................39
10.2 Setting the configuration parameters................................................................................................39
10.3 Restoring the factory settings ..........................................................................................................40
10.4 List of configuration parameters.......................................................................................................40
11
SIGNALS AND INDICATIONS ...............................................................................................................53
11.1 Signals..........................................................................................................................................53
11.2 Indications ....................................................................................................................................55
12
ALARMS............................................................................................................................................56
12.1 Alarms..........................................................................................................................................56
13
ERRORS............................................................................................................................................59
13.1 Errors ...........................................................................................................................................59
14
ACCESSORIES ...................................................................................................................................62
14.1 EVKEY programming key.................................................................................................................62
14.1.1 Introduction...............................................................................................................................62
14.1.2 Description ................................................................................................................................62
14.1.3 Dimensions................................................................................................................................63
14.1.4 Uploading the configuration parameters ........................................................................................63
14.1.5 Downloading the configuration parameters ....................................................................................63
14.2 Data recording device EVUSBREC01 .................................................................................................64
14.2.1 Introduction...............................................................................................................................64
14.2.2 Description ................................................................................................................................64
14.2.3 Dimensions................................................................................................................................65
14.2.4 Connection to the device .............................................................................................................65
14.3 Optoisolated RS-485/RS-232 serial interface EVIF21RS7I....................................................................65
14.3.1 Introduction...............................................................................................................................65
14.3.2 Description ................................................................................................................................66
14.3.3 Dimensions................................................................................................................................67
14.3.4 Connection to the device .............................................................................................................67
14.4 Phase cut speed regulator for single phase fans EVDFAN1 ...................................................................67
14.4.1 Introduction...............................................................................................................................67
14.4.2 Description ................................................................................................................................68
14.4.3 Dimensions................................................................................................................................68
14.4.4 Connection to the device .............................................................................................................68
14.5 Print module PM 100A X9S001.........................................................................................................69
14.5.1 Introduction...............................................................................................................................69
14.5.2 Description ................................................................................................................................69
page 4 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
14.5.3
Dimensions................................................................................................................................70
14.5.4 Connection to the device .............................................................................................................70
15
TECHNICAL DATA...............................................................................................................................71
15.1 Technical data ...............................................................................................................................71
page 5 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
1 INTRODUCTION
1.1 Introduction
EVF818 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
- 6 analogue inputs (cabinet probe, “multipoint” needle probe with up to three sensors, evaporator probe and
condenser probe) for PTC/NTC probes
- 4 digital inputs (door micro switch, high pressure, low pressure and compressor circuit breaker protection)
- 1 PWM analogue output for management of the evaporator fan
- 8 digital outputs (electromechanical relays), 1 x 30 A res. @ 250 VAC for compressor management, 1 x 16 A
res. @ 250 VAC for management of needle probe heating, 6 x 8 A res. @ 250 VAC for management of
defrosting, evaporator fan, condenser fan, door heating elements, of a seventh utility that can be set for the
cabinet light or UV light and an eighth utility that can be configured for pump down valve or alarm output.
- TTL type serial port
- RS-48 serial port with MODBUS communication protocol.
The device can manage both temperature-controlled and time-controlled and hard and soft blast chilling and storage
cycles and deep freezing and storage cycles, with intensity management via the use of a PWM analogue output and
phase cut speed regulator for EVDFAN1 single phase fans.
Every operating cycle can be preceded by pre-cooling. The temperature-controlled cycles are also preceded by a test
for checking the correct connection of the needle probe, with "multipoint" probes management (up to three sensors).
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 3 + 4 + 1 digit display (with function
icons) and 10 capacitive touch-keys; installation is envisioned on rear of panel with studs.
The control module is without cover and installation is envisioned on flat surface with spacers.
The "programs" function can be used to memorise some settings in a program and start an operating cycle with the
settings it has memorised.
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).
It is also finally possible to connect the controller to the Parameters Manager set-up software system, to the
monitoring and surveillance system of the RICS plants, to the data recording device and to download the recorded
data (via USB) EVUSBREC01 or to the print module PM 100A X9S001.
The following are indicated among the many other features:
- IP65 protection rating of the user interface
- management of three types of backlight
- memorisation of the defrosting interval
- management of temperature alarms
- compressor operating hours count, "keyboard block" function.
page 6 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
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) EVF818
340.0 x 84.0 mm (13.385 x 8.400 cm; L x H) •
custom 3 + 4 + 1 digit display (with function icon) •
number of keys (capacitive touch-key type) 10
Control module (without cover) EVF818
166.0 x 116.0 mm (6.535 x 11.598 cm; L x H) •
Connections EVF818
faston + fixed screw terminal board + removable screw
terminal board
Power supply EVF818
115... 230 VAC •
Analogue inputs EVF818
cabinet probe PTC/NTC
needle probe 1 PTC/NTC
needle probe 2 PTC/NTC
needle probe 3 PTC/NTC
evaporator probe PTC/NTC
•
condenser probe PTC/NTC
Digital inputs (for NO/NC contact) EVF818
door micro switch •
high pressure •
low pressure •
page 7 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
compressor circuit breaker protection •
Analogue outputs (PWM) EVF818
evaporator fan (1)
Digital outputs (electromechanical relays; A res. @
250 VAC)
EVF818
compressor 30 A
defrosting 8 A
evaporator fan (1)
condenser fan 8 A
door heating elements 8 A
needle probe heating 16 A
cabinet light/UV light 8 A
pump down valve/alarm 8 A
Communication port EVF818
TTL type serial port •
RS-48 serial port with MODBUS communication protocol •
Other features EVF818
IP65 protection rating of the user interface IP65
clock •
signal buzzer and alarm •
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 •
page 8 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
management of the test regarding correct insertion of
the needle probe
•
memorisation of the defrosting interval •
management of temperature alarms •
compressor operating hours count •
“programs” function •
“HACCP” function •
"keyboard lock" function •
configuration parameters access password •
restoring the factory settings •
Codes EVF818
codes EVF818P9
Notes:
(1) The evaporator fan control signal can be analogue or digital.
For further information, see chapter 15 "TECHNICAL DATA"; for other models contact the EVCO sales network.
page 9 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
2 DESCRIPTION
2.1 Description of the user interface
The following drawing illustrates the aspect of the EVF818 user interface.
The following table illustrates the meaning of EVF818 user interface parts.
Part Meaning
1
2 hard blast chilling or soft deep freezing key, hereon called HARD/SOFT" key
3 communication port with the control module (signal)
4 temperature-controlled cycle/time-controlled cycle key, hereon also called "TIME/TEMPERATURE key"
5 display
6 decrease key, hereon called "DOWN key"
7 increase key, hereon called "UP key"
8 cycle start/cycle cut-off key, hereon called "START/STOP key"
9 communication port with the control module (power supply)
on/off key, herein called also "ON/STAND-BY key"
10 programs memorisation/execution key, hereon also called “PROGRAMS key”
11 blast chilling/deep freezing intensity key, hereon also called "BLAST CHILLING INTENSITY key"
12 deep freezing key
13 blast chilling key
For further information, see the next chapters.
page 10 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
2.2 Description of the control module
The following drawing illustrates the aspect of the EVF818 control module.
The following table illustrates the meaning of EVF818 control module parts.
Part Meaning
1 power supply
2 digital outputs K3 and K4
3 digital output K2
4 digital output K1
5 digital output K5
6 digital inputs
7 digital output K6
8 digital outputs K7 and K8
9 reserved
10 TTL type serial port
11 reserved
12 digital inputs (cabinet probe, evaporator probe and condenser probe)
13 digital inputs (needle probe 1, needle probe 2 and needle probe 3)
14 reserved
page 11 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
15 PWM analogue output
16
RS-485 serial port with MODBUS communication protocol and communication port with user interface
(signal and power supply)
For further information, see the next chapters.
page 12 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
3 DIMENSIONS AND INSTALLATION
3.1 User interface dimensions
The following drawing illustrates the EVF818 user interface dimensions; these are expressed in mm (in).
3.2 Control module dimensions
The following drawing illustrates the EVF818 control module dimensions; these are expressed in mm (in).
page 13 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
3.3 User interface installation
Back panel via studs
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 15 "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.
page 14 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
4 ELECTRIC CONNECTION
4.1 Electric connection
The following drawing illustrates the EVF818 electric connection.
The utility managed by the K7 output, depends on parameter u11, as follows:
- cabinet light (u11 = 0, pre-defined setting)
- UV light (u11 = 1).
For the settings relative to the parameters, see chapter 10 “CONFIGURATION”.
The utility managed by the K8 output, depends on parameter u1, as follows:
- pump down valve (u1 = 0, per-defined setting)
- alarm (u1 = 1).
For the settings relative to the parameters, see chapter 10 “CONFIGURATION”.
The TTL port is the port used for connection of the controller to the EVKEY programming key.
page 15 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
The RS-485 port is for the connection of the controller to the following additional products:
- Parameters Manager set-up software system
- RICS plants monitoring and surveillance systems
- device for recording data and to download recorded data (via USB) EVUSBREC01
- print module PM 100A X9S001.
The port must not be used simultaneously with more than one of these products.
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 15 "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.
page 16 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
5 USER 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 re-propose 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 this 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 time-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 ON/STAND-BY key down for 2 s: the LED will switch on/off.
5.3 The display
All displays are off during the "off" status and during the "stand-by" status.
During the "on" state:
- the 1 digit display is off.
- the 3 digit display:
- will display the blast chilling end temperature if a temperature-controlled blast chilling cycle has been
selected or the deep freezing end temperature if a temperature-controlled deep freezing cycle has been
selected.
- will display the blast chilling duration if a temperature-controlled blast chilling cycle has been selected or
the deep freezing duration if a temperature-controlled deep freezing cycle has been selected.
- the 4 digit display:
- will display the work set-point during blast chilling if temperature-controlled blast chilling has been
selected or the work set-point during deep freezing if temperature-controlled deep-freezing has been
selected.
- will be off if time-controlled blast chilling or time-controlled deep freezing has been selected.
During the "run" state:
- the 1 digit display shows the program number if there is one in progress.
- the 3 digit display:
- will show the temperature detected by the needle probe if a temperature-controlled blast chilling or deep
freezing cycle is in progress
- will display the residual blast chilling time if time-controlled blast chilling is in progress or the residual
deep freezing time if time-controlled deep freezing is in progress
page 17 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
- the 4 digit display:
- will show the temperature of the cabinet.
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 2 s: the 3 digit 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 4 digit 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 60 s: the 4 digit display will switch off.
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.
5.5 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 2 s: the 3 digit 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 4 digit 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 60 s: the 4 digit display will switch off.
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 “Pb2“ label will not be displayed.
5.6 Condenser 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 2 s: the 3 digit 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 4 digit display will show the condenser temperature.
Operate as follows to exit the procedure:
5. Press and release the BLAST CHILLING key or do not operate for 60 s: the 4 digit display will switch off.
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 condenser probe is not enabled, i.e. if parameter P5 is set at 0, the “Pb3“ label will not be displayed.
page 18 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
5.7 Display of the temperature detected by needle probe
1, needle probe 2 and needle probe 3
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 2 s: the 3 digit display will show the first label available.
3. Press and release the UP or DOWN key to select “Pb4” (needle probe 1), “Pb5” (needle probe 2) or “Pb6”
(needle probe 3).
4. Press and release the BLAST CHILLING key: the 4 digit display will show the temperature detected by the
respective needle probe.
Operate as follows to exit the procedure:
5. Press and release the BLAST CHILLING key or do not operate for 60 s: the 4 digit display will switch off.
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 1 is not enabled, i.e. if parameter P3 is set at 0, the “Pb4“ label will not be displayed.
If the needle probe 2 is not enabled, i.e. if parameter P3 is set at 0 or 1, the “Pb5“ label will not be displayed.
If the needle probe 3 is not enabled, i.e. if parameter P3 is set at 0 1 or 2, the “Pb6“ label will not be displayed.
5.8 Defrosting activation in manual mode
Operate as follows:
1. Make sure the device is in the "on" status and that pre-cooling or storage cycle 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 3 digit display will show “dEF”.
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.
5.9 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 2 sec.: the AUX LED will switch on/off.
5.10 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 ON/STAND-BY key down for 2 s: the 3 digit display will show “Loc” for 2 seconds.
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)
- evaporator temperature display
- condenser temperature display
- display of the temperature detected by needle probe 1, needle probe 2 and needle probe 3
- defrosting activation in manual mode
- operating cycle start-up/cut-off
- switching on UV light for sterilisation cycle
- heating the needle probe
page 19 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
- display of information relative to the HACCP alarms
- memorisation of a program
- execution of a program
- 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 ON/STAND-BY key down for 2 s: the 3 digit display will show “UnL” for 2 seconds.
5.11 Silencing the buzzer
Operate as follows:
1. Make sure no procedures are in progress
2. Press and release the key.
page 20 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
6 OPERATION
6.1 Foreword
The device can manage the following operating cycles:
- temperature-controlled blast chilling and storage
- temperature-controlled hard blast chilling and storage
- time-controlled blast chilling and storage
- time-controlled hard blast chilling and storage
- continuous blast chilling
- temperature-controlled deep freezing and storage
- temperature-controlled soft deep freezing and storage
- time-controlled deep freezing and storage
- time-controlled soft deep freezing and storage
- continuous deep freezing
For further information, see the next paragraphs
Every operating cycle can be preceded by pre-cooling; see paragraph 6.13 "Pre-cooling start-up".
The temperature-controlled cycles are preceded by a test to verify the correct insertion of the needle probe; see
paragraph 6.14 " 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
6.1.1 Foreword regarding needle probe
The device can manage "multipoint" needle probes (with up to three sensors).
Parameter P3 establishes the number of needle probe sensors as indicated:
- if parameter P3 is set at 0, the needle probe will not be enabled
- if parameter P3 is set at 1, there will be one sensor (needle probe 1)
- if parameter P3 is set at 2, there will be 2 sensors (needle probe 1 and needle probe 2)
- if parameter P3 is set at 3, there will be 3 sensors (needle probe 1 and needle probe 2 and needle probe 3).
If parameter P3 is set at values different to 0, the temperature-controlled cycles will be preceded by a test to verify
the correct insertion of the needle probe; see paragraph 6.14 " Test for verification of the correct insertion of the
needle probe".
On conclusion of the test, the device will operate as indicated:
- the sensor that has detected the lowest temperature is then used as the reference temperature for heating the
needle probe.
- the sensor that has detected the highest temperature is then used as the reference for the temperature-
controlled cycles
- the sensors for which the test is not completed successfully are not used successively.
6.2 Temperature-controlled blast chilling and storage
The temperature-controlled blast chilling and storage cycle is divided into the following two phases:
- blast chilling
- storage.
page 21 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
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
4.1 If parameter r19 is set at 0, the 4 digit 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 3 digit 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 60 s to modify the parameter value:
5. Press and release the START/STOP key: the LED and the LED will remain permanently on and the test to
verify the correct insertion of the needle probe will be started; see paragraph 6.14 " 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; see paragraph 6.4
"Time-controlled blast chilling and storage".
Operate as indicated to stop the cycle:
6. Hold the START/STOP key down for 2 s.
During blast chilling, the 3 digit display will show the temperature detected by the needle probe and the 4 digit display
shows the cabinet cell.
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 work set-point during blast chilling, 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 60 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 3 digit display shows the time taken to complete blast chilling successfully, the 4 digit display
shows the cabinet temperature 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.
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.
LED and the LED will flash.
6.3 Temperature-controlled 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
page 22 of 76
EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
- 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 and 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 3 digit 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 4 digit 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 60 s to modify the parameter value:
6. Press and release the START/STOP key: the LED, 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 6.14 " 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; see paragraph 6.5
"Time-controlled hard blast chilling and storage".
Operate as indicated to stop the cycle:
7. Hold the START/STOP key down for 2 s.
During the hard blast chilling phase, the 3 digit display will show the temperature detected by the needle probe and
the 4 digit display shows the cabinet cell.
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.
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 3 digit display will show the temperature detected by the needle probe and the 4 digit display
shows the cabinet cell.
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 work set-point during blast chilling, 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 60 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 3 digit display shows the time taken to complete blast chilling successfully, the 4 digit display
shows the cabinet temperature 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.
page 23 of 76
Loading...