Evco S.p.A. • Code 104K614E00 • page 1/7
EVK614 Digital controller for retarder-prover cabinets and rooms, with RTC function version 1.00
E ENGLISH
1 IMPORTANT
1.1 Important
Read these instructions carefully before installation and commission-
ing and follow the recommendations regarding installation and for
electric connection. Keep these instructions with the instrument for
future consultation.
The instrument must be disposed of in compliance with
the local Standards regarding the collection of electrical
and electronic appliances.
2 DIMENSIONS AND INSTALLATION
2.1 Dimensions
The dimensions are expressed in mm (in).
DIMENS. MINIMUM TYPICAL MAXIMUM
A 71.0 (2.795) 71.0 (2.795) 71.8 (2.826)
B 29.0 (1.141) 29.0 (1.141) 29.8 (1.173)
2.2 Installation
Panel with click brackets supplied.
2.3 Installation recommendations
• the thickness of the panel must not exceed 8.0 mm (0.314 in)
• make sure that the work conditions (temperature of use, humidity,
etc.) lie within the limits indicated in the technical data
• do not install the instrument in vicinity of heat sources (resistances,
hot air pipes, etc.), appliances with strong magnets (large diffusers,
etc.), places subject to direct sunlight, rain, humidity, excessive dust,
mechanical vibrations or shocks
• in compliance with Safety Standards, the protection against any
contact with electric parts must be assured via correct installation of
the instrument; all parts that ensure protection must be fixed in a way
that they cannot be removed without using tools.
3 ELECTRIC CONNECTION
3.1 Preliminary considerations
With reference to the wiring diagram:
• port 1 is the serial port for communication with the supervision
system (through a serial interface, via TTL, with MODBUS communi-
cation protocol), with graphic diagram (through a serial interface)
or with the programming key;
purpose
• port 2 (on request) is the port for communication with the remote
indicator. The latter shows the temperature of the room.
3.2 Electric connection
the port must be used just for one
3.3 Recommendations for the electric connection
• do not operate on terminal boards using electric or pneumatic screw-
ing devices
• if the instrument has been taken from a cold to a hot place, the
humidity could condense inside; wait about 1 hour before apply-
ing power
• make sure that the power supply voltage, the frequency and the
operational electric power of the instrument correspond with those
of the local power supply
• disconnect the power supply before proceeding with any type of
maintenance
• do not use the instrument as a safety device
• for repairs and information regarding the instrument, contact the
Evco sales network.
4 FUNCTIONING
4.1 Preliminary considerations
The following functioning cycles exist:
• automatic cycle
• heating manual cycle
• cooling manual cycle.
The automatic cycle is made up of the following phases:
- a retarding provering phase
- a storing phase
- an awakening phase
- a provering phase
- a slowing phase
On conclusion of one phase the instrument passes automatically to
the next one.
5 AUTOMATIC CYCLE
5.1 Start/stop of the automatic cycle
To start the cycle:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
- the conclusion time of the provering phase (e.g. “02:00”)
-“dd” followed by the two numbers of the day of conclusion of the
-“MM” followed by the two numbers of the month of conclusion of
• press
• press
If the automatic cycles are not enabled (parameter P7 = 0), the “Auto”
label will not be displayed.
The end time of the provering phase is displayed in the 24 hour format
(hours:minutes). The time proposed is the same as the last automatic
cycle started but relative to the next day.
In the example, the provering phase will be concluded at 02:00 on
26 March. The display will show all information for 1 s.
If parameter P9 is set at 0, the display will only show the conclusion
time of the provering phase.
To stop the cycle:
• press
5.2 Modifying the end time and date of the provering
• make sure that the day and real time are set correctly, that the instru-
• press
• press
• press
• press
• press
• press
• press
• press
• press
- if the two numbers of the day exceed the real ones, the end date of
- if the two numbers of the day are lower than the real ones, the end
• press
To go back to previous levels:
• press
To exit the procedure:
• do not operate for 15 s (any modifications will be saved).
: the display will show the first label available
or within 15 s to select “Auto”
within 15 s: the display will show the following 3 times in
succession:
provering phase (e.g. “dd26”)
the provering phase (e.g. “MM03”)
within 9 s: the display will show “Go”
within 15 s: the LED will switch on and the retarding-
provering phase will be started.
for 4 s.
phase
ment is in stand-by and that no procedure is in progress.
: the display will show the first label available
or within 15 s to select “Auto”
within 15 s: the display will show the end time and date
of the provering phase in succession
within 9 s: the display will show “hh” followed by the
two numbers regarding the hour
or within 15 s; parameter P8 is also seen
within 15 s: the display will show “nn” followed by the
two numbers regarding the minutes
or within 15 s; parameter P8 is also seen
within 15 s: the display will show “dd” followed by the
two numbers regarding the day
or within 15 s; parameter P8 is also seen
the provering phase will refer to the real month (e.g., if it is 26 March
and the two numbers of the day are set at 27, the end date of the
provering phase will be 27 March)
date of the provering phase will refer to the following month (e.g.,
if it is 26 March and the two numbers of the day are set at 25, the end
date of the provering phase will be 25 April)
within 15 s: the display will show the end time and date
of the provering phase in succession again.
during modification of the values.
5.3.1 Modify ing the setting s of the retarding-provering
phase
To set the duration of the retarding-provering phase:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
• press
• press
• press
• press
• press
It is also possible to set the duration of the retarding-provering phase
via the dur0 parameter.
To set the work set-point during the retarding-provering phase:
• press
• press
It is also possible to set the retarding-provering phase work set-point
via the SEt0 parameter.
To set the percentage of relative humidity during the retarding-
provering phase (only if parameter rU4 is set at 1):
• press
• press
• press
It is also possible to set the percentage of relative humidity during the
retarding-provering phase via the Ur0 parameter.
To go back to previous levels:
• press
To exit the procedure:
• do not operate for 15 s (any modifications will be saved).
5.3.2 The retarding provering phase
During the retarding provering phase:
• the activity of the compressor depends mainly on parameters SEt0,
• the resistances remain off
• the evaporator fan activity depends mainly on parameter F0
• the activity of the humidifier mainly depends on parameters Ur0,
• defrosting can be activated
• the LED
The retarding-provering phase has duration of the time established
via parameter dur0. When this time has expired the instrument passes
automatically to the storing phase.
5.4.1 Modifying the settings of the storing phase
To set the work set-point during the storing phase:
• make sure that the instrument is in stand-by and that there is no
• press
• press
• press
: the display will show the first label available
or within 15 s to select “Auto”
within 15 s: the display will show the end time and date
of the provering phase in succession
or within 9 s to select “PHA1” (it is the label of the
retarding-provering phase): the LED
will switch on
within 15 s: the display will show “hh” followed by the
two numbers regarding the hours
or within 15 s; parameter P8 is also seen
within 15 s: the display will show “nn” followed by the
two numbers regarding the minutes
or within 15 s; parameter P8 is also seen.
during the modification of the duration of the retarding-
provering phase (i.e. during modification of the minutes):
the display will show “SEt” for 1 s after which the value is
shown
or within 15 s; parameters P8, rC1and rC2 are also
seen.
during the modification of the work set-point during the
retarding-provering phase: the display will show “Ur” for
1 s after which the value is shown
or within 15 s; parameters P8, rU3, rU5 and rU6
are also seen.
within 15 s: the display will show “PHA2” (it is the label
of the storing phase), the LED
LED
will switch on.
during modification of the values.
rC0 and rC4
rU2 and rU3 (the rU3 parameter establishes the duration of humidi-
fier switch-on, in the course of time rU2, such to cause 100% relative
humidity). If the temperature of the room falls below that established
with parameter rU1, humidification will not be available.
is on.
procedure in progress
: the display will show the first label available
o within 15 s to select “Auto”
within 15 s: the display will show the end time and date
of the provering phase in succession
will switch off and the
Evco S.p.A. • Code 104K614E00 • page 2/7
• press or within 9 s to select “PHA2” (it is the label of the
storing phase): the LED
will switch on.
Alternatively:
• press
during the modification of the percentage of relative
humidity during the retarding-provering phase.
Successively:
• press
within 15 s: the display will show “SEt” for 1 s after which
the value is shown
• press
or within 15 s; parameters P8, rC1and rC2 are also
seen.
It is also possible to set the storing phase work set-point via the SEt1
parameter.
To set the percentage of relative humidity during the storing phase
(only if parameter rU4 is set at 1):
• press
during the modification of the work set-point during the
storing phase: the display will show “Ur” for 1 s after which
the value is shown
• press
or within 15 s; parameters P8, rU3, rU5 and rU6
are also seen.
• press
within 15 s: the display will show “PHA3” (it is the label
of the awakening phase), the LED
the LED
will switch on.
will switch off and
It is also possible to set the percentage of relative humidity during the
storing phase via the Ur1 parameter.
To go back to previous levels:
• press
during modification of the values.
To exit the procedure:
• do not operate for 15 s (any modifications will be saved).
5.4.2 The storing phase
During the storing phase:
• the activity of the compressor depends mainly on parameters SEt1,
rC0 and rC4
To set the work set-point during the awakening phase:
• press
during the modification of the duration of the awakening
phase (i.e. during modification of the minutes): the dis-
play will show “SEt” for 1 s after which the value is shown
• press
or within 15 s; parameters P8, rH1and rH2 are also
seen.
It is also possible to set the awakening phase work set-point via the SEt2
parameter.
To set the percentage of relative humidity during the awakening phase:
• press
during the modification of the work set-point during the
awakening phase: the display will show “Ur” for 1 s after
which the value is shown
• press
or within 15 s; parameters P8, rU3, rU5 and rU6 are
also seen.
• press
within 15 s: the display will show “PHA4” (it is the label
of the provering phase), the LED
LED
will switch on.
will switch off and the
It is also possible to set the percentage of relative humidity during the
awakening phase via the Ur2 parameter.
To go back to previous levels:
• press
during modification of the values.
To exit the procedure:
• do not operate for 15 s (any modifications will be saved).
5.5.2 The awakening phase
During the awakening phase:
• compressor activity mainly depends on the SEt2, rC0 and rC3 pa-
rameters and that of the resistances from the SEt2, rH0 and rH3 pa-
rameters; see also parameter rn1
It is also possible to set the provering phase work set-point via the SEt3
parameter.
To set the percentage of relative humidity during the provering phase:
• press
during the modification of the work set-point during the
provering phase: the display will show “Ur” for 1 s after
which the value is shown
• press
or within 15 s; parameters P8, rU3, rU5 and rU6 are
also seen.
• press
within 15 s: the display will show “PHA5” (it is the label
of the slowing phase), the LED
LED
, , and will switch on.
will switch off and the
It is also possible to set the percentage of relative humidity during the
provering phase via the Ur3 parameter.
To go back to previous levels:
• press
during modification of the values.
To exit the procedure:
• do not operate for 15 s (any modifications will be saved).
5.6.2 The provering phase
During the provering phase:
• compressor activity mainly depends on the SEt3, rC0 and rC3 pa-
rameters and that of the resistances from the SEt3, rH0 and rH3 pa-
rameters; see also parameter rn2
• the resistances remain off
• the evaporator fan activity depends mainly on parameter F1
• the activity of the humidifier mainly depends on parameters Ur1,
rU2 and rU3 (the rU3 parameter establishes the duration of humidi-
fier switch-on, in the course of time rU2, such to cause 100% relative
humidity). If the temperature of the room falls below that established
with parameter rU1, humidification will not be available
• defrosting can be activated
• the LED
is on.
The duration of the storing phase adapts itself automatically to that of
the retarding-provering phase, to that of the awakening phase, to that
of the provering phase and the end time and date of the provering
phase. At the end of the storing phase, the instrument passes automati-
cally to the awakening phase.
5.5.1 Modifying the settings of the awakening phase
To set the duration of the awakening phase:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
: the display will show the first label available
or within 15 s to select “Auto”
within 15 s: the display will show the end time and date
of the provering phase in succession
• press
or within 9 s to select “PHA3” (it is the label of the
awakening phase): the LED
will switch on.
Alternatively:
• press
during the modification of the percentage of relative
humidity during the storing phase
Successively:
• press
within 15 s: the display will show “hh” followed by the
two numbers regarding the hours
• press
• press
or within 15 s; parameter P8 is also seen
within 15 s: the display will show “nn” followed by the
two numbers regarding the minutes
• press
or within 15 s; parameter P8 is also seen.
It is also possible to set the duration of the awakening phase via the
dur2 parameter.
• the evaporator fan activity depends mainly on parameter F2
• the activity of the humidifier mainly depends on parameters Ur2,
rU2 and rU3 (the rU3 parameter establishes the duration of humidi-
fier switch-on, in the course of time rU2, such to cause 100% relative
humidity). If the temperature of the room falls below that established
with parameter rU1, humidification will not be available.
• defrosting is never activated
• the LED
is on.
The awakening phase has duration of the time established via param-
eter dur2. When this time has expired, the instrument passes automati-
cally to the provering phase.
5.6.1 Modifying the settings of the provering phase
To set the duration of the provering phase:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
: the display will show the first label available
or within 15 s to select “Auto”
within 15 s: the display will show the end time and date
of the provering phase in succession
• press
or within 9 s to select “PHA4” (it is the label of the
provering phase): the LED
will switch on.
Alternatively:
• press
during the modification of the percentage of relative
humidity during the awakening phase.
Successively:
• press
within 15 s: the display will show “hh” followed by the
two numbers regarding the hours
• press
• press
or within 15 s; parameter P8 is also seen
within 15 s: the display will show “nn” followed by the
two numbers regarding the minutes
• press
or within 15 s; parameter P8 is also seen.
It is also possible to set the duration of the provering phase via the dur3
parameter.
To set the work set-point during the provering phase:
• press
during the modification of the duration of the provering
phase (i.e. during modification of the minutes): the dis-
play will show “SEt” for 1 s after which the value is shown
• press
or within 15 s; parameters P8, rH1and rH2 are also
seen.
• the evaporator fan activity depends mainly on parameter F3
• the activity of the humidifier mainly depends on parameters Ur3,
rU2 and rU3 (the rU3 parameter establishes the duration of humidi-
fier switch-on, in the course of time rU2, such to cause 100% relative
humidity). If the temperature of the room falls below that established
with parameter rU1, humidification will not be available
• defrosting is never activated
• the LED
is on.
The provering phase has duration of the time established via param-
eter dur3. When this time has expired, the instrument passes automati-
cally to the slowing phase.
5.7.1 Modifying the settings of the slowing phase
To set the work set-point during the slowing phase:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
: the display will show the first label available
or within 15 s to select “Auto”
within 15 s: the display will show the end time and date
of the provering phase in succession
• press
or within 9 s to select “PHA5” (it is the label of the
slowing phase): the LEDs
, ,
and will switch on.
Alternatively:
• press
during the modification of the percentage of relative
humidity during the provering phase.
Successively:
• press
within 15 s: the display will show “SEt” for 1 s after which
the value is shown
• press
or within 15 s; parameters P8, rH1and rH2 are also
seen.
It is also possible to set the slowing phase work set-point via the SEt4
parameter.
To set the percentage of relative humidity during the slowing phase:
• press
during the modification of the work set-point during the
slowing phase: the display will show “Ur” for 1 s after
which the value is shown
• press
or within 15 s; parameters P8, rU3, rU5 and rU6 are
also seen.
• press
within 15 s: the display will show the end time and date
of the provering phase in succession again and the LEDs
, , and will switch off.
It is also possible to set the percentage of relative humidity during the
slowing phase via the Ur4 parameter.
To go back to previous levels:
• press
during modification of the values.
To exit the procedure:
• do not operate for 15 s (any modifications will be saved).
Evco S.p.A. • Code 104K614E00 • page 3/7
5.7.2 The slowing phase
During the slowing phase:
• compressor activity mainly depends on the SEt4, rC0 and rC5 pa-
rameters and that of the resistances from the SEt4, rH0 and rH4 pa-
rameters
• the evaporator fan activity depends mainly on parameter F4
• the activity of the humidifier mainly depends on parameters Ur4,
rU2 and rU3 (the rU3 parameter establishes the duration of humidi-
fier switch-on, in the course of time rU2, such to cause 100% relative
humidity). If the temperature of the room falls below that established
with parameter rU1, humidification will not be available
• defrosting is never activated
• the LEDs
, , and are on.
The slowing phase lasts until the cycle is interrupted by pressing the
for 4 s.
6 HEATING MANUAL CYCLE
6.1 Start/stop of the heating manual cycle
To start the cycle:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
• press
: the display will show the first label available
or within 15 s to select “Hot”
within 15 s: the display will show “Go”
within 15 s: the LED will switch on and the cycle will
be started.
To stop the cycle:
• press
for 4 s.
6.2.1 Modifying the settings of the heating manual
cycle
To set the duration of the heating manual cycle:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
: the display will show the first label available
or within 15 s to select “Hot”
within 15 s: the display will show “hh” followed by the
two numbers regarding the hours and the LED
will
switch on
• press
• press
or within 15 s
within 15 s: the display will show “nn” followed by the
two numbers regarding the minutes
• press
or within 15 s.
To set the work set-point during the heating manual cycle:
• press
during the modification of the duration of the heating
manual cycle (i.e. during modification of the minutes): the
display will show “SEt” for 1 s after which the value is
shown
• press
or within 15 s; parameters rH1and rH2 are also
seen.
It is also possible to set the heating manual cycle work set-point via the
SEt5 parameter.
To set the percentage relative humidity during the heating manual
cycle:
• press
during the modification of the work set-point during the
heating manual cycle: the display will show “Ur” for 1 s
after which the value is shown
• press
or within 15 s; parameters rU3, rU5 and rU6 are
also seen.
• press
within 15 s: the display will show “Hot” again.
It is also possible to set the percentage of relative humidity during the
heating manual cycle via the Ur5 parameter.
To go back to previous levels:
• press
during modification of the values.
To exit the procedure:
• do not operate for 15 s (any modifications will be saved).
6.2.2 The heating manual cycle
During the heating manual cycle:
• the activity of the resistances depends mainly on parameters SEt5,
rH0 and rH3
• the compressor stays off
• the evaporator fan activity depends mainly on parameter F3
• the activity of the humidifier mainly depends on parameters Ur5,
rU2 and rU3 (the rU3 parameter establishes the duration of humidi-
fier switch-on, in the course of time rU2, such to cause 100% relative
humidity). If the temperature of the room falls below that established
with parameter rU1, humidification will not be available.
• defrosting is never activated
• the LED
is on.
The heating manual cycle lasts until it is interrupted by pressing the
for 4 s. When the duration of the heating manual cycle has ended,
the buzzer is activated for the time established with parameter dur5.
7 COOLING MANUAL CYCLE
7.1 Start/stop of the cooling manual cycle
To start the cycle:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
• press
: the display will show the first label available
or within 15 s to select “Cold”
within 15 s: the display will show “Go”
within 15 s: the LED will switch on and the cycle will
be started.
To stop the cycle:
• press
for 4 s.
7.2.1 Modifying the settings of the cooling manual
cycle
To set the work set-point during the cooling manual cycle:
• make sure that the instrument is in stand-by and that there is no
procedure in progress
• press
• press
• press
: the display will show the first label available
or within 15 s to select “Cold”
within 15 s: the display will show “SEt” for 1 s after which
the value is shown
• press
or within 15 s; parameters rC1 and rC2 are also
seen.
• press
within 15 s: the display will show “Cold” again.
It is also possible to set the heating manual cycle work set-point via the
SEt6 parameter.
To go back to previous levels:
• press
during modification of the values.
To exit the procedure:
• do not operate for 15 s (any modifications will be saved).
7.2.2 The cooling manual cycle
During the cooling manual cycle:
• the activity of the compressor depends mainly on parameters SEt6,
rC0 and rC4
• the resistances remain off
• the evaporator fan activity depends mainly on parameter F0
• the humidifier remains off
• defrosting can be activated
• the LED
is on.
The cooling manual cycle lasts until it is interrupted by pressing the
for 4 s.
8 USER INTERFACE
8.1 Preliminary considerations
The following functioning states exist:
• the “on” status (the instrument is powered and a functioning cycle
is in progress: the regulators can be switched on)
• the “stand-by” status (the instrument is powered but no functioning
cycle is in progress: the regulators are off)
• the “off” status (the instrument is not powered).
Successively, the term “switch-on” means the passage from the stand-
by status to the on status; the term “switch-off” means the passage from
the on status to the stand-by status.
If the power supply is shut-off during the stand-by status, the same
status will be proposed again when the power supply is restored.
If the power supply is shut-off during the on status, instrument function-
ing will depend on parameter P6 when the power supply is restored.
8.2 The display
If the instrument is on, during normal functioning the display will
show the size established via parameter P4:
• if P4 = 0, the display will show the temperature of the room if a
functioning cycle is in progress and will be off if the instrument is in
stand-by
• if P4 = 1, the display will show the end time of the provering phase
if a functioning cycle is in progress and will be off if the instrument
is in stand-by
• if P4 = 2, the display will show the temperature of the room (for 3 s)
alternating with the end time of the provering phase (for 1 s) if a
functioning cycle is in progress and will be off if the instrument is in
stand-by
• if P4 = 3, the display will show the temperature of the room if a
functioning cycle is in progress and the real time if the instrument is
in stand-by
• if P4 = 4, the display will show the end time of the provering phase
if a functioning cycle is in progress and the real time if the instrument
is in stand-by
• if P4 = 5, the display will show the temperature of the room (for 3 s)
alternating with the end time of the provering phase (for 1 s) if a
functioning cycle is in progress and the real time if the instrument is
in stand-by.
8.3 Displaying the room temperature
• make sure that no procedure is in progress
• press
• press
for 1 s: the display will show the first label available
or to select “Pb1”
• press
To exit the procedure:
• press
• press
or do not operate for 60 s
or until the display shows the size established via
parameter P4 or do not operate for 60 s.
Alternatively:
• press
8.4 Displaying the evaporator temperature
• make sure that no procedure is in progress
• press
• press
for 1 s: the display will show the first label available
or to select “Pb2”
• press
To exit the procedure:
• press
• press
or do not operate for 60 s
or until the display shows the size established via
parameter P4 or do not operate for 60 s.
Alternatively:
• press
If the evaporator probe is absent (parameter P3 = 0), the “Pb2” label
will not be displayed.
8.5 Displaying the end time and date of the provering
phase
• make sure that an automatic cycle is in progress and no procedure
is in progress
• press
• press
• press
for 1 s: the display will show the first label available
or to select “End”
: the display will show the following in succession:
- the conclusion time of the provering phase (e.g. “02:00”)
-“dd” followed by the two numbers of the day of conclusion of the
provering phase (e.g. “dd26”)
-“MM” followed by the two numbers of the end month of the
provering phase (e.g. “MM03”)
To exit the procedure:
• press
• press
or do not operate for 60 s
or until the display shows the size established via
parameter P4 or do not operate for 60 s.
Alternatively:
• press
If a heating or cooling manual cycle is in progress, the “End” label will
not be displayed.
The end time of the provering phase is displayed in the 24 hour format
(hours: minutes).
In the example, the provering phase will be concluded at 02:00 on
26 March. the display will show all information for 1 s.
If parameter P9 is set at 0, the display will only show the conclusion
time of the provering phase.
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