Evco EVJS 800 Series User guide

EVCO S.p.A. EVJS 800 | Installer manual ver. 1.1 | Code 144JS800E114
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EVJS 800 series
Controllers for blast chillers
ENGLISH
INSTALLER MANUAL er. 1.1
CODE 144JS800E114

EVCO S.p.A. EVJS 800 | Installer manual ver. 1.1 | Code 144JS800E114
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Important
Read this document carefully before installation and before using the device and take all the prescribed precautions.
Keep this document with the device for future consultation.
Only use the device in the ways described in this document. Do not use the device as safety device.
Disposal
The device must be disposed of according to local regulations governing the collection of electrical and electronic
equipment.

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Index
1 INTRODUCTION ......................................... 4
1.1 Product description ..................................... 4
1. Models available and hardware features ........ 5
INSTALLATION........................................... 6
.1 Format features ......................................... 6
. Measurements and installation ..................... 6
.3 Electrical connection ................................... 8
3 OPERATING THE DEVICE ............................. 9
3.1 Initial switch-on ......................................... 9
3. Power failure ............................................. 9
3.3 Silencing the buzzer ................................... 9
4 DISPLAY ................................................. 10
4.1 Keys ....................................................... 10
4. Icons ...................................................... 11
5 SETTINGS ............................................... 13
5.1 Initial information .................................... 13
5. Languages .............................................. 13
5.3 Internal status ......................................... 13
5.4 Parameters ............................................. 13
5.5 HACCP alarms ......................................... 14
5.6 Restore data ............................................ 14
5.7 Real time clock ........................................ 14
6 FUNCTIONS ............................................. 15
6.1 Operating cycles ...................................... 15
6. Needle probe insertion test........................ 16
6.3 Blast chilling/blast freezing and conservation ...
............................................................. 16
6.4 Pre-cooling .............................................. 18
6.5 Manual defrosting .................................... 19
6.6 Fish sanitation (if E13 = 1) ........................ 0
6.7 Ice cream hardening (if E13 = 1) ............... 1
6.8 Thawing .................................................. 1
6.9 Cabinet sterilisation .................................. 3
6.10 Heating the needle probe ...................... 3
6.11 Drying (only EVS815) ........................... 4
6.1 Recipes ............................................... 5
7 MANAGING THE LOADS ............................. 7
7.1 Door frame heating .................................. 7
7. Compressor ............................................. 7
7.3 Evaporator fans ....................................... 8
7.4 Condenser fans ........................................ 8
7.5 Alarm ..................................................... 9
7.6 Needle probe heating ................................ 9
7.7 Cabinet sterilisation .................................. 9
7.8 Defrosting ............................................... 9
7.9 Thawing heaters ...................................... 9
7.10 Cabinet light ........................................ 9
8 CONFIGURATION PARAMETERS .................. 30
9 ALARMS .................................................. 39
9.1 Alarms .................................................... 39
10 ACCESSORIES ......................................... 43
10.1 Programming key ................................. 43
10. TTL/RS-485 signal conversion module ..... 43
10.3 EVlinking BLE module ........................... 43
10.4 EVlinking Wi-Fi TTL module .................... 43
10.5 EV3 Web IoT Gateway........................... 44
11 TECHNICAL SPECIFICATIONS .................... 45
11.1 Technical specifications ......................... 45

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1INTRODUCTION
1.1 Product description
Controllers in the EVJS 800 range are capable of performing blast chilling and blast freezing cycles in an intuitive way,
both temperature and time controlled, with hard/soft function. This versatile product provides users with a range of
special cycles such as pre-cooling, fish sanitation and ice cream hardening. The outputs are highly configurable thus
making it possible to manage the loads needed to run thawing cycles, needle probe heating and cabinet sterilisation
and drying.
The BLE connectivity (conveyed by the external interface EVlinking BLE) enables the interaction with the unit from the
app EVconnect. The Wi-Fi connectivity (conveyed by the external interface EVlinking Wi-Fi) enables the interaction
with the unit from the Internet via the cloud platform EPoCA. For more details, please check out the section
"Products/Remote management and monitoring systems" in our website.
The controllers are available in split version (user interface and control module). The user interface has a .8-inch
colour graphic display, capacitive keys and an IP65 front with a continuous surface. It has been designed for rapid
front installation on a plastic or metal panel.

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1.2 Models a ailable and hardware features
The table below shows the technical features of the models available and the purchasing codes.
EVJS815P9 EVJS825P9
Power supply
user interface by the control
module
by the control
module
control module 115... 30 VAC 115... 30 VAC
Analogue inputs
cabinet probe (PTC/NTC) • •
needle probe (PTC/NTC) • •
auxiliary probe (PTC/NTC) • •
Digital inputs
door switch • •
multi-purpose • •
Digital outputs
compressor 30 A 30 A
defrost 8 A 8 A
evaporator fan 8 A 8 A
condenser fan (configurable) 8 A 8 A
needle probe heater (configurable) 8 A 8 A
Communications ports
TTL MODBUS for EVCO accessories • •
Other features
clock • •
alarm buzzer • •
BLE connectivity for app EVconnect optional with
EVlinking BLE
optional with
EVlinking BLE
Wi-Fi connectivity for cloud platform EPoCA optional with
EVlinking Wi-Fi
optional with
EVlinking Wi-Fi
Management of 0 customizable recipes •

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2INSTALLATION
2.1 Format features
The controllers are available in split version (user interface and control module).
The user interface has a .8-inch colour graphic display, 6 capacitive keys and an IP65 front.
The control module is available in open frame version.
2.2 Measurements and installation
Measurements and installation user interface
Panel, from the front
N.B.
The thickness of a metal panel must be between 0.8 and 1.5 mm (1/3 and 1/16 in), while that for a plastic panel
must be between 0.8 and 3.4 mm (1/3 and 1/8 in).
Dimensioni e montaggio modulo di controllo
On plan surface, with spacers

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Installation precautions
- ensure that the working conditions for the device (operating temperature, humidity, etc.) are within the
set limits. See section 10 TECHNICAL SPECIFICATIONS.
- do not install the device close to heat sources (heaters, hot air ducts, etc.), equipment with a strong
magnetic field (large diffusers, etc.), in places subject to direct sunlight, rain, damp, excessive dust,
mechanical vibrations or shocks.
- any metal items close to the control module must be at a sufficient distance so as not to compromise the
safety distance; any cabling must be placed at least cm away.
- in compliance with safety regulations, the device must be installed properly to ensure adequate
protection from contact with electrical parts. All protective parts must be fixed in such a way as to need
the aid of a tool to remove them.

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2.3 Electrical connection

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3OPERATING THE DEVICE
3.1 Initial switch-on
Connect the device to the power supply: a neutral system loading screen will be presented:
Once loading is complete, the device will display the mode it was in before being powered down:
- on the Home screen with no power failure message;
- carrying out a cycle with the POWER FAILURE message indicating that there had been a loss of power.
3.2 Power failure
If there is a power failure with no function in progress, when power is restored the device will return to the mode set
before the failure occurred.
If the power supply fails while a function is active, when power is restored the device will behave as follows:
- if blast chilling or blast freezing was in progress, the cycle will resume, taking into account the duration of the power
failure;
- if a conservation cycle was running, the cycle will continue using the same settings.
If the power supply has been cut off long enough to cause a clock error (RTC code), it will be necessary to reset the
date and time.
3.3 Silencing the buzzer
To silence the buzzer touch any key while it is sounding.

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4DISPLAY
4.1 Keys
Each of the 6 keys activates different functions depending on the navigation level or the function currently running.
KEYS FUNCTION
- Enables the quick selection of a blast chilling cycle.
- Once a blast chilling cycle has been selected, it makes it possible to switch from temperature
controlled blast chilling to time controlled blast chilling and vice versa.
- During the quick selection of blast chilling/freezing cycle: by touching the key three times in
succession, the controller moves to the stand-by page.
- Within a menu or when setting a parameter: acts as the "ESC" key and returns the controller to the
page above.
- N.B. When a cycle is in progress the key is not active; to stop the cycle press the "START" key for
seconds.
- Enables the quick selection of a blast freezing cycle.
- Once a blast freezing cycle has been selected, it makes it possible to switch from temperature
controlled blast freezing to time controlled blast freezing and vice versa.
- Once the blast chilling/blast freezing cycle has been selected, it makes it possible to switch from
hard to soft mode and vice versa.
- From the Home page: gives access to the setting menu.
- Within a menu: enables navigation down a level.
- During parameter setting: decreases the value of the element to be modified.
- From the Home page: gives access to the menu for selecting special cycles
- Within a menu: enables navigation up a level.
- During parameter setting: increases the value of the element to be modified.
- Short press: starts the selected function or gives access to the selected menu page.
- Long press for seconds: interrupts the cycle in progress
- During parameter setting: enables the value to be modified, while pressing a second time confirms
the set value.

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4.2 Icons
ICON DESCRIPTION
Cabinet temperature
Core temperature
Blast chilling
Hard blast chilling
Blast freezing
Soft blast freezing
Time-controlled cycle
Compressor output on
Cycle in progress
Door open The icon will automatically disappear the next time the door is closed or when a key is pressed
Fish sanitation cycle in progress
Ice cream hardening cycle in progress
Thawing cycle in progress
Number of the phase in progress

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Blast chilling/blast freezing cycle completed successfully
Blast chilling/blast freezing cycle not completed successfully
Custom recipe recording

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5SETTINGS
5.1 Initial information
The list of settings is accessed by pressing on the Home page.
Depending on the navigation page, menu and settings can be exited pressing the key or by time-out
5.2 Languages
The choice of languages consists of Italian, English, French, German, Spanish, Portuguese, Simplified Chinese and
Traditional Chinese.
5.3 Internal status
The internal status display menu is shown below.
To return from this menu to the previous screen, press the key.
5.4 Parameters
To display the parameters, the password -19 must first be entered from the menu using the key. To change the
value of the parameters, select the desired parameter and use the key to edit it; finally confirm with the
key.

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For a complete list of parameters with their respective labels, descriptions and values (default, minimum and
maximum), see section 8 CONFIGURATION PARAMETERS.
5.5 HACCP alarms
Access the SETTINGS menu with the key, select HACCP ALARMS and press to see the last 9 HACCP alarms
stored. If there are no HACCP alarms stored, the display will show the words “NO ALARM”.
The following HACCP alarms are listed:
-Blast chilling/blast freezing cycle duration
-Power failure
-Door open
-High temperature alarm
-Low temperature alarm
The time of their appearance will only be shown if an RTC is installed.
5.6 Restore data
Access the SETTINGS menu with the key, select RESTORE DATA and press . The RESTORE PARAMETERS
sub-menu can be accessed by first typing the password 149.
5.7 Real time clock
On the REAL-TIME CLOCK page, if the key is pressed, the digits indicating the year start to flash. The value
can be set by using the keys, and then confirmed by pressing the key. Continue using this
procedure to complete the changes. Once the date and time have been set, you will be returned to the previous menu
after 50 seconds of inactivity or by pressing the key.

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6FUNCTIONS
6.1 Operating cycles
The device is capable of managing the following blast chilling and blast freezing cycles:
- temperature controlled blast chilling and conservation
- hard temperature controlled blast chilling and conservation
- time controlled blast chilling and conservation
- hard time controlled blast chilling and conservation
- temperature controlled blast freezing and conservation
- soft temperature controlled blast freezing and conservation
- time controlled blast freezing and conservation
- soft time controlled blast freezing and conservation
The blast chilling or blast freezing functions can be accessed quickly by pressing the keys and .
In addition to the blast chilling and blast freezing cycles, the controller is able to manage the following special cycles,
some of which are always available, while others can be enabled/disabled by parameters u1 (load managed by the K4
output) and u (load managed by the K5 output):
- pre-cooling
- manual defrosting
- fish sanitation (available if P3 = 1, i.e. if the needle probe is enabled)
- ice cream hardening
- thawing (available only if u1 is set to , i.e thawing heater)
- cabinet sterilisation (available only if u is set to 1, i.e UV lamp)
- needle probe heating (available only if u is set to , i.e. needle heater)
- recipes (programmes with predefined cycles)
The SPECIAL CYCLES menu is accessed by pressing the key.

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While the cycle is being carried out, the display will show the most significant data:
- when the refrigeration plant is active, the compressor icon at the top left will be illuminated;
- when a recipe is in progress, the blue arrows alternate with the name of the recipe;
- when defrosting is in progress, the word “defrosting” will appear at the top.
The cycle can be stopped at any time by holding down the key for seconds.
6.2 Needle probe insertion test
If the needle probe is enabled, or if parameter P3 is set to 1, temperature controlled cycles are preceded by a two-
phase test to check that the needle probe has been inserted correctly. If the needle probe is not enabled or if
parameter P3 is set at 0, only time controlled cycles can be selected.
The test consists of two phases, the second only carried out if the first was not successfully completed.
- Phase one is completed successfully if the gap between the "temperature detected by the needle probe" and the
"cabinet temperature" is greater than the value set by parameter r17 in at least three out of five checks
(the first check is carried out 10 seconds after the start of the cycle and thereafter at ten-second
intervals);
- the second phase is completed successfully if the difference between the "temperature detected by the needle probe"
and the "cabinet temperature" is greater than 1°C/1°F as compared to the same check previously
carried out, in at least six out of eight checks (the checks being performed at intervals corresponding to
1/8 of the time set by parameter r18).
If the test fails to record a positive outcome, or if the needle probe is not inserted, the buzzer sounds and the cycle
automatically changes to time-controlled.
To perform the test, the device waits for the end of any defrosting at the beginning of the cycle and for the door to be
closed.
6.3 Blast chilling/blast freezing and conser ation
Pressing the or keys enables selection of a blast chilling or blast freezing cycle respectively. The device
will offer a time or a temperature controlled program depending on the setting of P3: to switch from one mode to the
other, press the or the key again.

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Once the desired cycle has been selected, by pressing the key it is possible to add a phase (hard for blast
chilling, soft for blast freezing) that will be carried out preliminary to the standard phase, thus changing from a single
phase to a two phase cycle.
The selected cycle will offer either the pre-loaded settings for that cycle, or the settings of the last cycle carried out
(depending on the r36 parameter). By pressing ,it will be possible to quickly change the value of an
individual data item (set by parameter r35) within the permitted ranges.
Once the change has been made, press to carry out the cycle.
If it is a temperature controlled cycle, a test will be performed to check that the needle probe has been correctly
inserted in the food item to be blast chilled. If the test is not successful, the cycle automatically switches to time
controlled mode: the buzzer sounds and the type of cycle control is converted from temperature to time on the display.
For more details about how to run the test, see section 6. .

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On completion of the blast chilling/blast freezing cycle, when the needle probe has reached the right temperature or
the time period is finished, the buzzer sounds and the conservation phase begins. If the temperature controlled cycle
is not completed in the allotted time, the problem will be notified by displaying an alarm message.
The conservation phase is not timed and is only terminated when the key is pressed for seconds.
Defrosting is always enabled during a conservation phase.
While a cycle is being carried out, by pressing the key it is possible to access an advanced page where the
working setpoints for the cycle in progress can be modified and all of the machine’s internal status data displayed.
6.4 Pre-cooling
This is a refrigeration cycle of infinite duration that can precede all the operating cycles.
It can also be used as a refrigeration cycle of infinite duration.
Access the SPECIAL CYCLES menu using the key and select PRE-COOLING: at this point the working SETPOINT
setting screen is displayed, the value of which is given by parameter r1 but which can be modified using the
keys. The next time that the key is pressed the cycle starts.

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Once the required cabinet setpoint has been reached, the buzzer sounds and the cycle continues and maintains the
cabinet temperature achieved until the key is pressed for seconds or until a blast chilling/blast freezing cycle
starts up.
If, on the other hand, blast chilling and blast freezing cycles are selected while a pre-cooling program is in progress,
the device will display the cycle settings.
During a pre-cooling cycle, defrosting is enabled.
In the event of a power failure, the cycle will be resumed.
6.5 Manual defrosting
A defrosting cycle can be started manually only if certain temperature conditions are met (see parameters d and d3).
Access the SPECIAL CYCLES menu using the key and select DEFROSTING: at this point the word DEFROSTING
will appear and the next time is pressed the cycle will start.
If the evaporator probe is present and the conditions for defrosting are not satisfied, when the START key is pressed,
the device returns to the SPECIAL CYCLES menu and defrosting is not carried out.
If a defrosting is set to be carried out with the door open (d1=3), the message "OPEN DOOR" will be displayed if it is
closed.
Defrosting can also be carried out automatically during conservation or pre-cooling at time intervals set by parameter
d0, provided that this value is not set to 0.
Regardless of how they have been started up, defrosting cycles are managed by the following parameters.
d0 interval between two consecutive defrosts

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d1 type of defrost
d evaporator temperature to end defrost (can be set if P4 is set to 1)
d3 defrost duration
d4 defrost start-up at the beginning of a blast chilling/blast freezing cycle
d5 defrost start-up delay from the start of conservation after blast chilling/blast freezing
d7 drip duration
d15 minimum compressor switch-on duration for starting hot gas defrost
d16 pre-drip duration (can be set if hot gas defrost is selected)
The type of defrost can be selected by parameter d1. There are four ways of performing a defrost cycle.
d1=0 electric defrost
d1=1 hot gas defrost
d1= air defrost
d1=3 air defrost with door open
Defrosting is activated automatically at the start of a blast chilling/blast freezing cycle if d4=1. Regardless of the
parameter d4 value, automatic defrost is activated with a delay as compared to the beginning of the conservation
phase set by parameter d5.
If the evaporator probe is present when a defrost cycle is to be activated, this only starts if the temperature indicated
by the evaporator probe is lower than the value of parameter d .
Defrosting finishes when the evaporator temperature is above the value of parameter d or if the temperature has not
been reached within the required time set by parameter d3.
When pre-cooling is in progress, a defrosting cycle cannot be started.
6.6 Fish sanitation (if E13 = 1)
The fish sanitation cycle is only available with the use of a needle probe.
Access the SPECIAL CYCLES menu using the key and select FISH SANITATION: at this point the start-up screen
will appear and the next time is pressed the cycle will start.
This special cycle consists of the following phases:
- blast chilling with the cabinet setpoint set by parameter r19 and with the product temperature setpoint set by
parameter r 0;
- holding for the time period set by parameter r 1 and the cabinet setpoint given by r 0;
- conservation with the cabinet setpoint given by r .