Evco EVX 800 Series User guide

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 1 of 66
EVX 800 range
Controllers for blast chillers
(integrated into the unit)
ENGLISH
INSTALLER MANUAL ver. 1.2
CODE 144X800E124

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 2 of 66
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.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 3 of 66
Index
1INTRODUCTION ...................................................................................................................................5
1.1 Introduction ........................................................................................................................................5
1.2 Summary table of the main features and the models available...................................................................7
2DESCRIPTION....................................................................................................................................10
2.1 Description of EVX802 and EVX812 ......................................................................................................10
2.2 Description of EVX805 and EVX815 ......................................................................................................11
3DIMENSIONS AND INSTALLATION........................................................................................................12
3.1 Dimensions of EVX802 and EVX812......................................................................................................12
3.2 Dimensions of EVX805 and EVX815......................................................................................................12
3.3 Installation........................................................................................................................................13
3.4 Installation warnings ..........................................................................................................................13
4ELECTRIC CONNECTION......................................................................................................................14
4.1 EVX802 and EVX812 electric connection................................................................................................14
4.2 EVX805 and EVX815 electric connection................................................................................................15
4.3 Warnings for the electric connection .....................................................................................................16
5USER INTERFACE ...............................................................................................................................17
5.1 Foreword ..........................................................................................................................................17
5.2 Switching the device on/off .................................................................................................................17
5.3 The display........................................................................................................................................17
5.4 Cabinet temperature display................................................................................................................17
5.5 Display of the temperature detected by the needle probe........................................................................18
5.6 Evaporator temperature display ...........................................................................................................18
5.7 Condenser temperature display............................................................................................................18
5.8 Defrosting activation in manual mode...................................................................................................19
5.9 Switching the cabinet light on/off in manual mode (in EVX805 and EVX815 models only)............................19
5.10 Locking/unlocking the keyboard .......................................................................................................19
5.11 Silencing the buzzer .......................................................................................................................20
6OPERATION.......................................................................................................................................21
6.1 Foreword ..........................................................................................................................................21
6.2 Blast chilling and storage ....................................................................................................................21
6.3 Hard blast chilling and storage.............................................................................................................22
6.4 Deep freezing and storage ..................................................................................................................24
6.5 Soft deep freezing and storage ............................................................................................................25
6.6 Pre-cooling start-up............................................................................................................................27
6.7 Management of the test regarding correct insertion of the needle probe....................................................27
6.8 Switching the UV light on for sterilisation cycle (in EVX805 and EVX815 models only).................................28
6.9 Needle probe heating (in EVX805 and EVX815 models only)....................................................................28
7“HACCP” FUNCTION (EVX812 AND EVX815 MODELS ONLY) .....................................................................29
7.1 Foreword ..........................................................................................................................................29
7.2 Displaying information relative to the HACCP alarms ..............................................................................29
7.3 Deleting the information relative to the HACCP alarms............................................................................30
8COMPRESSOR OPERATING HOURS COUNT ............................................................................................32
8.1 Displaying compressor operating hours.................................................................................................32
8.2 Deleting the compressor operating hours ..............................................................................................32
9CONFIGURATION ...............................................................................................................................33
9.1 Setting the real date and time (in EVX812 and EVX815 models only)........................................................33
9.2 Setting the configuration parameters....................................................................................................33

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 4 of 66
9.3 Restoring the factory settings ..............................................................................................................34
9.4 List of configuration parameters...........................................................................................................34
10 SIGNALS AND INDICATIONS ...............................................................................................................48
10.1 Signals..........................................................................................................................................48
10.2 Indications ....................................................................................................................................50
11 ALARMS ............................................................................................................................................ 51
11.1 Alarms ..........................................................................................................................................51
12 ERRORS............................................................................................................................................53
12.1 Errors ...........................................................................................................................................53
13 ACCESSORIES ...................................................................................................................................55
13.1 EVKEY programming key.................................................................................................................55
13.1.1 Introduction...............................................................................................................................55
13.1.2 Description ................................................................................................................................55
13.1.3 Dimensions................................................................................................................................56
13.1.4 Uploading the configuration parameters ........................................................................................56
13.1.5 Downloading the configuration parameters ....................................................................................56
13.2 Non-optoisolated RS-485/TTL serial interface EVIF20TSX ....................................................................57
13.2.1 Introduction...............................................................................................................................57
13.2.2 Description ................................................................................................................................57
13.2.3 Dimensions................................................................................................................................57
13.2.4 Connection to the device .............................................................................................................57
13.3 EVPROG01 connection kit ................................................................................................................58
13.3.1 Introduction...............................................................................................................................58
13.3.2 Description ................................................................................................................................58
13.3.3 Dimensions................................................................................................................................59
13.3.4 Connection to the device .............................................................................................................60
13.4 0041600277 polyester sticker..........................................................................................................60
13.4.1 Introduction...............................................................................................................................60
13.4.2 Description ................................................................................................................................60
13.5 0041600278 polyester sticker..........................................................................................................60
13.5.1 Introduction...............................................................................................................................60
13.5.2 Description ................................................................................................................................60
14 TECHNICAL DATA...............................................................................................................................61
14.1 Technical data ...............................................................................................................................61

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 5 of 66
1INTRODUCTION
1.1 Introduction
The EVX 800 line is a range of digital controllers studied to manage temperature-controlled blast chillers, which can be
mechanically and aesthetically integrated into the unit.
The range is made up from 4 devices: EVX802, EVX812, EVX805 and EVX815.
EVX802 and EVX812 have:
- clock (EVX812 only)
- signal buzzer and alarm
- 3 analogue inputs (cabinet probe, needle probe and evaporator probe) for PTC/NTC probes
- 1 digital input (door micro switch)
- 1 input that can be set for analogue input (condenser probe, for PTC / NTC probes)/digital input (high pressure)
- 2 digital outputs (electromechanical relays), 1 x 30 A res. @ 250 VAC for compressor management and 1 x 8 A
res. @ 250 VAC for the management of a second utility (can be set for defrosting or evaporator fan); defrosting
can be electrical, hot gas, air or with air with door open
- serial port with MODBUS communication protocol
EVX805 and EVX815 have:
- clock (EVX815 only)
- signal buzzer and alarm
- 3 analogue inputs (cabinet probe, needle probe and evaporator probe) for PTC/NTC probes
- 1 digital input (door micro switch)
- 1 input that can be set for analogue input (condenser probe, for PTC / NTC probes)/digital input (high pressure)
- 5 digital outputs (electromechanical relays), 1 x 30 A res. @ 250 VAC for compressor management and 4 x 8 A
res. @ 250 VAC for management of defrosting, evaporator fan, of a fourth utility (that can be set for door
resistances or condenser fan) and a fifth utility (can be set for cabinet lights, 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 devices can manage both temperature and time-controlled 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 devices are presented without cover for complete mechanical and aesthetic integration into the blast chiller; the
user interface is made up from a custom 4-digit display (with function icon) and 8 keys (6 in the EVX802 and EVX812
models).
Back panel installation via M3 studs is envisioned.
Via the "HACCP" function (available in the EVX812 and in the EVX815), 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).

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 6 of 66
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:
- direct loads connection (except the utility managed by the fifth digital output)
- two-level management of the overheated condenser alarm
- memorisation of the defrosting interval
- management of temperature alarms
- compressor operating hours count
- "keyboard lock" function.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 7 of 66
1.2 Summary table of the main features and the models
available
The following table illustrates the main features of the devices and the models available.
“/“ indicates the feature can be set via a configuration parameter.
User interface (without cover) EVX802 EVX812 EVX805 EVX815
156.0 x 45.0 mm (6.141 x 1.771 in;
L x H) • • • •
custom 4 digit display (with function icon) • • • •
number of keys 6 6 8 8
°C decimal point • • • •
Connections EVX802 EVX812 EVX805 EVX815
faston + fixed screw terminal board • • • •
Power supply EVX802 EVX812 EVX805 EVX815
230 VAC • • • •
Analogue inputs EVX802 EVX812 EVX805 EVX815
cabinet probe PTC/NTC PTC/NTC PTC/NTC PTC/NTC
needle probe PTC/NTC PTC/NTC PTC/NTC PTC/NTC
evaporator probe PTC/NTC PTC/NTC PTC/NTC PTC/NTC
condenser probe/high pressure input PTC/NTC PTC/NTC PTC/NTC PTC/NTC
Digital inputs (for
NO/NC contact) EVX802 EVX812 EVX805 EVX815
door micro switch • • • •
high pressure/condenser probe • • • •
Digital outputs (electromechanical
relays; A res. @ 250 VAC) EVX802 EVX812 EVX805 EVX815
compressor 30 A 30 A 30 A 30 A
defrosting 8 A 8 A

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 8 of 66
defrosting/evaporator fan 8 A 8 A
evaporator fan 8 A 8 A
door resistances/condenser fan 8 A 8 A
cabinet light/needle probe heating/UV light 8 A 8 A
Communication port EVX802 EVX812 EVX805 EVX815
serial port with MODBUS communication
protocol • • • •
Other features EVX802 EVX812 EVX805 EVX815
clock • •
signal buzzer and alarm • • • •
direct loads connection • •
except for the
utility
managed by
the digital
output
except for the
utility
managed by
the digital
output
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 • • • •
management of the overheated condenser
alarm • • • •
memorisation of the defrosting interval • • • •
management of temperature alarms • • • •
compressor operating hours count • • • •

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 9 of 66
“HACCP” function • •
"keyboard lock" function • • • •
configuration parameters access password • • • •
restoring the factory settings • • • •
Codes EVX802 EVX812 EVX805 EVX815
codes EVX802P7 EVX812P7 EVX805P7 EVX815P7
For further information, see chapter 14 "TECHNICAL DATA"; for other models contact the Evco sales network.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 10 of 66
2DESCRIPTION
2.1 Description of EVX802 and EVX812
The following drawing illustrates the aspect of EVX802 and EVX812
The following table illustrates the meaning of EVX802 and EVX812. parts.
Part Meaning
1 display
2 blast chilling key
3 deep freezing key
4 hard blast chilling or soft deep freezing key, hereon called HARD/SOFT" key
5 serial port with MODBUS communication protocol
6 switch-on/switch-off/cycle start/cycle cut-off key, hereon called "START/STOP key"
7 increase key, hereon call "UP key"
8 decrease key, hereon call "DOWN key"
For further information, see the next chapters.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 11 of 66
2.2 Description of EVX805 and EVX815
The following drawing illustrates the aspect of EVX805 and EVX815
The following table illustrates the meaning of EVX805 and EVX815 parts.
Part Meaning
1 display
2 blast chilling key
3 deep freezing key
4 hard blast chilling or soft deep freezing key, hereon called HARD/SOFT" key
5 auxiliary key
6 serial port with MODBUS communication protocol
7 switch-on/switch-off/cycle start/cycle cut-off key, hereon called "START/STOP key"
8 defrosting key
9 increase key, hereon call "UP key"
10 decrease key, hereon call "DOWN key"
For further information, see the next chapters.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 12 of 66
3DIMENSIONS AND INSTALLATION
3.1 Dimensions of EVX802 and EVX812
The following drawing illustrates EVX802 and EVX812 dimensions; these are expressed in mm (in).
3.2 Dimensions of EVX805 and EVX815
The following drawing illustrates EVX805 and EVX815 dimensions; these are expressed in mm (in).

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 13 of 66
3.3 Installation
Back panel via M3 studs
3.4 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.
- 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.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 14 of 66
4ELECTRIC CONNECTION
4.1 EVX802 and EVX812 electric connection
The following drawing illustrates the EVX802 and EVX812 electric connection.
The function of the fourth input depends on parameter 5, as follows:
- high pressure input (digital input, P5 = 0)
- condenser probe (analogue input, P5 = 1, pre-defined setting).
For the settings relative to the parameters, see chapter 9 “CONFIGURATION”.
The utility managed by the K2 output, depends on parameter u0, as follows:
- defrosting (u0 = 0)
- evaporator fan (u0 = 1, pre-defined setting).
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 than one of these products.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 15 of 66
4.2 EVX805 and EVX815 electric connection
The following drawing illustrates the EVX805 and EVX815 electric connection.
The function of the fourth input depends on parameter 5, as follows:
- high pressure input (digital input, P5 = 0)
- condenser probe (analogue input, P5 = 1, pre-defined setting).
For the settings relative to the parameters, see chapter 9 “CONFIGURATION”.
The utility managed by the K4 output, depends on parameter u1, as follows:
- door resistances (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 than one of these products.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 16 of 66
4.3 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.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 17 of 66
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 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 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 time-controlled blast chilling or deep freezing operation was in progress:
- the EVX802 and EVX805 models will be re-started from the time the power cut occurs with a maximum
error of 10 minutes
- the EVX812 and EVX815 models will be re-started from the time the power cut occurs
- 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 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.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 18 of 66
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.
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 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 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 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 for 1 s: the display will show the first label available.
3. Press and release the UP or DOWN key to select “Pb4”.
4. Press and release the BLAST CHILLING key: the 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 15 s: the display will show “Pb4” 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 condenser probe is not enabled, i.e. if parameter P5 is set at 0, the “Pb4“ label will not be displayed.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 19 of 66
5.8 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.
3.1 In models EVX802 and EVX812, hold the UP key down for 4 s: the LED will switch on.
3.2 In models EVX805 and EVX815, hold the DEFROSTING 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.
5.9 Switching the cabinet light on/off in manual mode (in
EVX805 and EVX815 models only)
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 AUXILIARY key: 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 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
- condenser temperature display
- defrosting activation in manual mode
- operating cycle start-up/cut-off
- switching on UV light for sterilisation cycle
- heating the needle probe
- displaying information relative to the HACCP alarms
- deleting the information relative to the HACCP alarms
- displaying 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.

EVCO S.p.A. EVX 800 range | Installer manual ver. 1.2 | Code 144X800E124
page 20 of 66
5.11 Silencing the buzzer
Operate as follows:
1. Make sure no procedures are in progress
2. Press and release the key.