EVCO EVR274N9 User Manual

EVCO S.p.A. | Code 104R200E114 | Page 1 of 10 | PT 14/13 | version 1.1

EVR 200 range

Controllers for cold rooms for bars, refrigerated display cabinets for ice cream/confectionery and small wine cellars

EN ENGLISH

DIMENSIONS AND INSTALLATION
Dimensions and installation

The dimensions are expressed in mm (in); panel installation is envisioned, with elastic retainer wings (det. A).

Drill ing te mplate

To make easier a possible removal of the device, slightly bevel the longitudinal inside edges of the drilling template before
the installation (det. B and C).

ELECTRIC CONNECTION
Electric connection EVR203 / EVR233 / EVR263 / EVR273

Serial port

load

power supply

Door microswitch /multi f.

Electric connection EVR204 / EVR234 / EVR264 / EVR274

Serial port

Door microswitch /multi f.

power supply

Serial port

load 4

defrost

evap. fan

Fourth input

Door microswitch/multif. 1

cell

Door microswitch/multi f. 1

Electric connection EVR221 / EVR231 / EVR261 / EVR271 Electric connection EVR202 / EVR232

power supply

EVCO S.p.A. | Code 104R200E114 | Page 2 of 10 | PT 14/13 | version 1.1

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.
Only use the device in the way described in this document;
do not use the same as a safety device.

The device must be disposed of in compliance
with local Standards regarding the collection of
electric and electronic equipment.

1 DIMENSIONS AND INSTALLATION

1.1 Installation warnings

- the thickness of the panel must be between 0.8 and 2.0
mm (0.031 and 0.078 in)

- make sure that the device work conditions (tempera­ture of use, humidity, etc.) lie within the limits indi­cated; see chapter 12

- 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.

2 ELECTRIC CONNECTION

2.1 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 12

- disconnect the device power supply before proceeding
with any type of maintenance

- position the power cables as far away as possible from
the signal cables

- for repairs and information regarding the device, contact
the EVCO sales network.

3 USER INTERFACE

3.1 Preliminary notes

Operating Statuses:

- “on” state (the device is powered and is on: the regulators
can be switched on)

- “stand-by” status (the device is powered but is switched
off via software: the regulators are switched off; the
possibility to manually switch on/switch off the cell light
or auxiliary output depends on parameter u2)

- the “off” status (the device is not powered).

Hereafter, with the word “start-up” means the passage from
“stand-by” status to “on” status; the word “shutdown” means
the passage from “on” status to “stand-by” status.
When the power is switched back on, the device displays the
status that it was in at the time it was disconnected.

3.2 Device switch-on/off in manual mode

Operating Statuses:

1. Make sure that the keyboard is not locked and that no
procedure is in progress.

2. Hold the

key down for 2 s: the LED will switch

off/on.

Using the digital inputs it is also possible to remotely switch
on/off the device.

3.3 The display

If the device is switched on, during normal operation, the
display will show the cell temperature, except during
defrosting, when the device will show the temperature
established with parameter d6.
If the device is switched off, the display will be switched off.

3.4 Display of the evaporator temperature (not

available in EVR221, EVR231, EVR261 and
EVR271 models)

1. Make sure that the keyboard is not locked and that no
procedure is in progress.

2. Hold the

key down for 1 s: the display will show the

first label available.

3. Press and release the

key or the key to select

“Pb2”.

4. Press and release the

key.

To exit the procedure:

5. Press and release the

key or do not operate for

60 sec.

6.1 Press and release the

or down key until the
display shows the cell temperature or do not operate
for 60 sec.

Alternatively:

6.2 Press and release the

key.
If the evaporator probe is absent (parameter P3 = 0), the
label “Pb2” will not be displayed.

3.5 Condenser temperature display (in EVR204,

EVR234, EVR264 and EVR274 models only)

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Hold the

key down for 1 s: the display will show the

first label available.

3. Press and release the

key or the key to select

“Pb3”.

4. Press and release the

key.
To exit the procedure:

5. Press and release the

key or do not operate for

60 sec.

6.1 Press and release the

or down key until the
display shows the cell temperature or do not operate
for 60 sec.

Alternatively:

6.2 Press and release the

key.
If the fourth input function is that of the digital input
(parameter P4 = 0), the label “Pb3” will not be displayed.

3.6 Mains voltage display (in EVR263, EVR273,

EVR264 and EVR274 models only)

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Hold the

key down for 1 s: the display will show the

first label available.

3. Press and release the

key or the key to select

“Ui”.

4. Press and release the

key.
To exit the procedure:

5. Press and release the

key or do not operate for

60 sec.

6.1 Press and release the

or down key until the
display shows the cell temperature or do not operate
for 60 sec.

Alternatively:

6.2 Press and release the

key.

3.7 Activation/deactivation of “overcooling”
function

1. Make sure that the keyboard is not locked and that no

other operation is in progress, that defrosting and/or
dripping is not in progress and that the evaporator fan
is off.

2. Hold the

key down for 4 s: the Overcooling LED will

light up.
During the “overcooling” function the working set-point is
reduced by the temperature established with parameter r5;
the operation lasts for the amount of time established with
parameter r6.
During “overcooling” defrosting is never activated; if the
defrosting interval expires when the function is in progress,
defrosting will be activated at the end of the function.

3.8 Defrosting activation in manual mode

1. Make sure that the keyboard is not locked and that no

other operation is in progress; ensure that the

“overcooling” function is not in progress

2. Hold the

key down for 4 s.
If the evaporator probe function is that of the defrosting
probe (parameter P3=1) and upon activation of defrosting,
the temperature of the evaporator is higher than that
established with parameter d2, the defrosting function will
not be activated.

3.9 Switch-on/off of the cell light in manual

mode (not available in EVR221, EVR231,
EVR261 and EVR271 models and only if
parameter u0/u1 is set at 0)

1. Make sure no procedures are in progress

2. Press and release the

key: the “AUX” LED will

switch on/off.
Using the door digital inputs it is also possible to switch on/
off the cell light by remote; see also parameter u2.

3.10 Switch-on of demister resistors (only in

EVR202, EVR232, EVR204, EVR234, EVR264
and EVR274 models and only if parameter
u0/u1 is set at 1)

1. Ensure that the device is switched on and that no other

procedure is in progress.

2. Hold the

key down for 2 s: the “AUX” LED will light
up and the resistors will be switched on, both for the
amount of time established with parameter u6.

Manually switching off the demisting resistors is not permitted
(that is, before the time established with parameter u6
expires).

3.11 Switch-on/off of auxiliary output in manual
mode (only in EVR202, EVR232, EVR204,
EVR234, EVR264 and EVR274 models and
only if parameter u0/u1 is set at 2)

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Press and release the

key: the “AUX” LED will

switch on/off.
Using the digital inputs it is also possible to remotely switch
on/off the auxiliary output.

3.12 Locking/unlocking the keyboard

To lock the keyboard:

1. Make sure no procedures are in progress

2. Hold the

key and the key down for 1 s:

the display will show “Loc”.
If the keyboard is locked, the following are not permitted:

- device switch-on/off in manual mode

- display of evaporator temperature (via the procedure

explained in paragraph 3.4)

- display of the condenser temperature (via the procedure

indicated in paragraph 3.5)

- display the mains voltage

- activation/deactivation of “overcooling” function

- manual activation of defrosting

- manual switch on/off of the auxiliary output

- activation of operation for low of high percentage of

relative humidity and learning the kind of operation

- see information regarding the HACCP alarms

- cancellation of HACCP alarm list

- display of compressor operation hours

- cancellation of compressor operation hours

- changing the working set-point (with the procedure

described in 8.1).
The operations cause the display of the label “Loc” per 1
sec.
To unlock the keyboard:

1. Hold the

key and thee key down for 1 s: the

display will show the message “UnL” for 1 sec.

3.13 Silencing the buzzer

To lock the keyboard:

1. Make sure no procedures are in progress

2. Press a key (the first pressing of the key will not cause

the effect associated with that key).
If parameter u0/u1 is set at 3 (i.e. the utility managed by
the fourth output is the alarm output ) and parameter u4 is
set at 1, pressing the key will also cause the deactivation of
the output.
If parameter u9 is set to 0, the buzzer will not be activated.

4 OPERATION DUE TO LOW OR HIGH

PERCENTAGE OF RELATIVE HUMIDITY (NOT
AVAILABLE IN EVR221, EVR231, EVR261 AND
EVR271 MODELS AND ONLY IF PARAMETER
F0 IS SET AT 5)

4.1 Preliminary notes

During operation for low percentage of relative humidity, the
evaporator ventilator will be switched on if the compressor is
switched off (parameter F4 determines the amount of time
it is switched off while parameter F5 determines the amount
of time it is switched on).
During operation for a high percentage of relative humidity
the evaporator fan is always on.

4.2 Activation of operation for low or high

percentage relative humidity in manual mode.

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Hold the

key and thee key down for 4 s: the
display will show “rhL” (operation for low percentage
of relative humidity) or “rhH” (operation for high per­centage of relative humidity) for 10 sec.

To restore the normal display before the operation is
complete:

3. Press a key.
Activation of the operation for a low or high percentage of
relative humidity can be done using parameter F6.
If the parameter F0 is not set at 5, pressing the and keys
will cause the display of the “- - -“ indication for 1 s.

4.3 Learning the type of operation in progress

1. Make sure no procedures are in progress

2. Press and release the key and the.. key: the display
will show “rhL” (operation for low percentage of relative
humidity) or “rhH” (operation for high percentage of
relative humidity) for 10 sec.

To restore the normal display before the operation is
complete:

3. Press a key.

If parameter F0 is not set at 5, pressing the

and

keys will cause:

- the display of the message “- - - -“ for 1 sec if the
keyboard is not locked

- display of the label “Loc” for 1 sec if the keyboard is
locked.

EVCO S.p.A. | Code 104R200E114 | Page 3 of 10 | PT 14/13 | version 1.1

5 ENERGY SAVING

5.1 Preliminary notes

Once the time you have set with parameter i10 has passed,
without activations of the door microswitch input (after the
cell temperature has reached the work set-point) the “en­ergy saving” function is activated (until the input is activated
again).
During function “Energy Saving” the working set-point is
increased of the temperature you have set with parameter
r4 and the evaporator fan is turned on cyclically, on condition
that parameter F0 has value 1 or 2 (parameter F13 sets the
time the fan remains turned off and parameter F14 the time
it remains turned on).
It is also possible to activate the “energy saving” function in
remote mode through the digital inputs (with effect only on
the compressor).

6 “HACCP” FUNCTION

6.1 Preliminary notes

The device can memorise the following HACCP alarms:

- minimum temperature alarm (code “AL”)

- maximum temperature alarm (code “AH”)

- door microswitch input alarm (code “id”)
The device supplies the following information for every alarm:

- the critical value

- the duration of the alarm (from 1 min to 99 hours and
59 min, partial if the alarm is in progress).

Code Critical value

AL the minimum temperature of the cell during any

alarm of this type

AH the maximum temperature of the cell during any

alarm of this type

id the maximum cell temperature during any alarm

of this type; see also parameter i4

The device stored the minimum temperature alarm on con­dition that the temperature associated to the alarm is that of
the cell (parameter A0 = 0).
if the device is switched off, no alarms will be stored.
The device updates the information regarding the alarms
provided the critical value of the new alarm is more critical
than that stored or provided the information has already
been displayed.
The “HACCP” LED provides information regarding the storage
status of the alarms; see paragraph 9.1.

6.2 Display of HACCP alarm information

To begin the procedure:

1. Make sure that the keyboard is not locked and that no
procedure is in progress.

2. Hold the

key down for 1 s: the display will show the

first label available.

3. Press and release the

key or the key to select

“LS”.

4. Press and release the

key: the display will show

one of the codes included in the table in paragraph 6.1.

If the device does not have any alarms stored, the label
“LS” will not be displayed.
To select an alarm:

5. Press and release the

or key (to select, for

example, “AH”).

To see information regarding the alarm:

6. Press and release the

key: the HACCP LED will
stop flashing and remain on permanently and the dis­play will show, for example, the following information
in succession (for example):

Inform. Part

8.0 the critical value is 8.0 °C/8 °F

dur the display is about to show the alarm duration
h01 the alarm lasted for 1 hour (other data continues)
n15 the alarm lasted 1 hour and 15 min

AH the alarm selected

the displays each piece of information for 1 s.
To exit the information sequence:

7. Press and release the

key: the display will show

the alarm selected (in the example “AH”).

To exit the procedure:

8. Exit the information sequence.

9.1 Press and release the

or down key until the
display shows the cell temperature or do not operate
for 60 sec.

Alternatively:

9.2 Press and release the

key.

7.3 Cancelling the HACCP alarm list

1. Make sure that the keyboard is not locked and that no
procedure is in progress.

2. Hold the

key down for 1 s: the display will show the

first label available.

3. Press and release the

key or the key to select

“rLS”.

4. Press and release the

key.

5. Press and release the

key or the key within

15 s to set “149”.

6. Press and release the

key or do not operate for
15 sec: the display will show a flashing “- - - -” for
4 sec and the “HACCP” LED switches off, after which
the device will exit the procedure.

If the device does not have any alarms stored, the label
“rLS” will not be displayed.

7 COMPRESSOR OPERATING HOURS COUNT

7.1 Preliminary notes

The device can memorise up to 9.990 compressor operating
hours.
The parameter C10 establishes the number of operating
hours is higher than the limit at which the need for
maintenance is signalled.

7.2 Display of Compressor Operation Hours

1. Make sure that the keyboard is not locked and that no
procedure is in progress.

2. Hold the key down for 1 s: the display will show the first
label available.

3. Press and release the

key or the key to select

“CH”.

4. Press and release the

key.

To exit the procedure:

5. Press and release the

key or do not operate for

60 sec.

6.1 Press and release the

or down key until the
display shows the cell temperature or do not operate
for 60 sec.

Alternatively:

6.2 Press and release the

key.

7.3 Cancelling the HACCP alarm list

1. Make sure that the keyboard is not locked and that no
procedure is in progress.

2. Hold the

key down for 1 s: the display will show the

first label available.

3. Press and release the

key or the key to select

“rCH”.

4. Press and release the

5. Press and release the

key.

key or the key within

15 s to set “149”.

6. Press and release the

key or do not operate for
15 sec: the display will show “- - -” flashing for
4 sec, after which the device will exit the procedure.

8 SETTINGS

8.1 Setting the working set-point

1. Make sure that the keyboard is not locked and that no
procedure is in progress.

2. Press and release the

3. Press and release the

key: the LED will flash.

or key within

15 sec; see also parameters r1, r2 and r3

4. Press and release the
15 sec: the

LED will switch off and then the device

key or do not operate for

will exit the procedure.

To exit the procedure before the operation is complete:

5. Do not operate for 15 sec (any changes will be saved).

The working set-point can also be set via parameter SP.

8.2 Setting the configuration parameters

To begin the procedure:

1. Make sure no procedures are in progress

2. Hold the

key and the key down for 4 s:

the display will show “PA”.

3. Press and release the

4. Press and release the

key.

key or the key within

15 s to set “-19”.

5. Press and release the

key or do not operate for

15 sec.

6. Hold the

key and the key down for 4 s:

the display will show “SP”.

To select a parameter:

7. Press and release the

key or the key.

To change a parameter:

8. Press and release the

9. Press and release the

key.

key or the key within

15 sec.

10. Press and release the

key or do not operate for

15 sec.

To exit the procedure:

11. Hold down the

and keys for 4 sec and do not

operate for 60 sec (any changes will be saved).

After changing the parameters, suspend power supply flow
to the device.

8.3 Restoring the Manufacturer’s Settings

To begin the procedure:

1. Make sure no procedures are in progress

2. Hold the

key and the key down for 4 s:

the display will show “PA”.

3. Press and release the

4. Press and release the

key.

key or the key within

15 s to set “149”.

5. Press and release the key or do not operate for
15 sec.

6. Hold the

key and the key down for 4 s:

the display will show “dEF”.

7. Press and release the

8. Press and release the

key.

key or the key within

15 s to set “1”.

9. Press and release the

key or do not operate for
15 sec: the display will show “dEF” flashing for
4 sec, after which the device will exit the procedure.

10. Cut the device power supply off.
To exit the procedure before the operation is complete:

11. Hold the

and key down for 4 s during the
procedure (i.e. before setting “1”:
Restore will not be performed).

Make sure that the manufacturer’s settings are appropriate
(see chapter 13).

9 WARNING LIGHTS AND DIRECTIONS

9.1 Signals
LED Part

compressor LED light
if the LED is on, then the compressor is on
if the LED is flashing:

- the working set-point is in the process of
being changed (via the procedure described
in paragraph 8.1)

- a compressor protection will be in progress;
see parameters C0, C1, C2, C14, C15, C16
and i7

Defrost LED
If it is on:

- defrosting is in progress

- predripping will be in progress; see
parameter d16

If the LED is flashing:

- defrosting will be requested but a compres
sor protection will be in progress; see the
parameters C0, C1 and C2

- dripping will be in progress; see parameter d7

- the refrigerant fluid heating will be in
progress; see parameter d15

Evaporator fan LED light
if it is on:

- the evaporator fan will be on

If the LED is flashing:

- evaporator fan standstill will be in progress;
see parameter F3

AUX Auxiliary LED

If it is on:

- the cell light will have been switched on in
manual mode (only if parameter u0/u1 is set
at 0)

- the demister resistors will be switched on (only
if the parameter u0/u1 is set at 1)

- the auxiliary output will have been switched
on in manual mode (only if parameter u0/u1

is set at 2)

- the door resistors will be switched on (only
if the parameter u0/u1 is set at 4)

- the evaporator valve will be activated (only if
parameter u0/u1 is set at 5)

- the condenser fan will be on (only if param­eter u0/u1 is set at 6)

if the LED is flashing:

- the cell light will have been switched on in
remote mode; see parameters i0 and i5 (only
if parameter u0/u1 is set at 0)

- the auxiliary output will have been switched
on in remote mode; see parameters i0 and i5
(only if parameter u0/u1 is set at 1)

HACCP HACCP LED

if it is on, all information regarding HACCP alarms
has not been displayed
if it is flashing, the device has stored at least one
new HACCP alarm
if it is off, all information regarding the HACCP
alarms has been displayed or the list of alarms has
been cancelled
maintenance LED
if on, compressor maintenance will be requested;
see parameter C10
“overcooling” LED
if it is on, the “overcooling” function will be in
function; see parameters r5 and r6

°C degree Celsius LED

if on, the temperatures will be displayed using the
degree Celsius grade unit of measurement; see
parameter P2
if flashing, the “energy saving” function is in progress
(with effect only on the compressor)

EVCO S.p.A. | Code 104R200E114 | Page 4 of 10 | PT 14/13 | version 1.1

°F degree Fahrenheit LED

if on, the temperatures will be displayed using the
degree Fahrenheit grade unit of measurement;
see parameter P2
if flashing, the “energy saving” function is in progress
(with effect only on the compressor)
On/stand-by LED
if it is on, the device will be off ( “stand-by”
state)
if it is off, the device will be on (“on” state)

9.2 Signal Descriptions/Explanations
Code Part

rhL operation for a low percentage of relative humidity

in progress

rhH operation for a high percentage of relative humidity

in progress

Loc the keyboard is blocked; see paragraph 3.12

the work set-point is blocked; see parameter r3

- - - the operation requested is not available

10 ALARMS

10.1 Alarms
Code Part

AL Minimum alarm temperatures (HACCP alarms)

Solutions:

- check the temperature associated to the
alarm; see parameters A0, A1 and A2

Main consequences:

- if parameter A0 is set to 0, the device will
store the alarm

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

AH Maximum temperature alarm (HACCP alarms)

Solutions:

- check the cell temperature; see parameters
A4 and A5

Main consequences:

- the device will memorise the alarm

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

id Door microswitch input alarm (HACCP alarms)

Solutions:

- check the causes of the activation of the in­put; see parameters i0, i1, i5 and i6

Main consequences:

- the effect established with the parameters i0
and i5

- if parameter is set to 1, the device will store the
alarm, provided parameter i2 is not set to -1

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

iA Multifunction input alarm

Solutions:

- check the causes of the activation of the in­put; see parameters i0, i1, i5 and i6

Main consequences:

- the effect established with the parameters i0
and i5

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

iSd Pressure switch alarm

Solutions:

- check the causes of the activation of the in­put; see parameters i0, i1, i5, i6, i7, i8 and i9

- switch off and re-start the device or suspend
the power supply

Main consequences:

- the regulators will switch off

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

UA Mains voltage alarm

Solutions:

- check the mains voltage; see parameters C14,
C15 and C16

Main consequences:

- the compressor will be switched off and will
not be switched on

CF Compressor forced switch-on alarm

Solutions:

- check the mains voltage; see parameter C18

Main consequences:

- the device will perform forced compressor
switch-on; the device restores normal display
when the temperature of the cell reaches the
work set-point.

COH Condenser overheated alarm.

Solutions:

- check the condenser temperature; see pa­rameter C6

Main consequences:

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

- the condenser fan will be on (only if param­eter u0/u1 is set at 6)

CSd Condenser overheated alarm.

Solutions:

- check the condenser temperature; see pa­rameter C7

- switch the device off and back on again: if
when the device is switched back on, the
temperature of the condenser is still higher
than that established in parameter C7, dis­connect the power supply and clean the con­denser

Main consequences:

- the compressor and the evaporator fan will be
switched off

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

- the condenser fan will be on (only if param­eter u0/u1 is set at 6)

dFd Defrosting alarm switched off because maximum

time has been reached
Solutions:

- heck the integrity of the evaporator probe;
see parameters d2, d3 and d11

- press a key to restore normal display

Main consequences:

- the device will continue to operate normally.

When the cause of the alarm disappears, the device restores
normal operation, except for the following alarms:

- pressure switch alarm (code “iSd”) which requires the
switching off of the device or the temporary suspension
of the power supply

- compressor blocked by condenser temperature alarm
(code “CSd”) which requires the switching off of the
device or the temporary suspension of the power supply

- the compressor forced switch-on alarm (code “CF”)
that requires the cell temperature to have reached the
work set-point

- Defrosting alarm switched off because maximum time
has been reached (code “dFd”) which requires the
pressing of a key.

11 ERRORS

11.1 Errors

Code Part

Pr1 Cell probe error

Solutions:

- check that the probe is the PTC or NTC type;
see parameter P0

- - check the device-probe connection

- check the cell temperature

Main consequences:

- compressor activity will depend on param­eters C4 and C5

- the defroster will not be activated

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

- the door resistors will be switched off (only if
the parameter u0/u1 is set at 4)

- the evaporator valve will be deactivated (only
if parameter u0/u1 is set at 5)

Pr2 Evaporator probe error

Solutions:

- the same as the preceding case but with re­spect to the evaporator probe

Main consequences:

- if parameter P3 is set to 1, the defrosting
period will last for the amount of time set with
parameter 3

- if parameter P3 is set to 1 and parameter d8
is set to 2 or to 3, the device will operate as if
parameter d8 were set to 0

- if parameter F0 is set to 3 or 4, the device will
operate as if the parameter were set to 2

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

Pr3 Condenser probe error.

Solutions:

- the same as the preceding case but with re­spect to the condenser probe

Main consequences:

- condenser overheated alarm (code “COH”)
will not be activated

- the compressor blocked alarm (“CSd” code)
will never be activated

- the alarm output will be activated (only if
parameter u0/u1 is set at 3)

- the condenser fan will operate parallel tot the
compressor (only if parameter u0/u1 is set at

6)

When the problem that caused the alarm disappears, the
device is restored to normal operation.

12 TECHNICAL DATA

12.1 Technical data
Purpose of the command device: operating command

device.
Construction of the command device: built-in electronic
device.

Case: grey self-extinguishing.
Dimensions: 180.0 x 38.0 x 44.0 mm (7.086 x 1.496 x

1.732 in; L x H x D).
Method of mounting the command device: panel, with
elastic retaining wings.

Protection rating: IP55.
Connections: 6.3 mm faston (0.248 in, power supply and

outputs), removable screw terminal board (inputs), 6 pole
connector (serial port).
The maximum length of the analogue input and digital input
connection cables must be less than 10 m (32.808 ft).

Operating temperature: from 0 to 55 °C (from 32 to 131 °F).
Storage temperature:from -25 to 70 °C (from -13 to

158 °F).
Humidity for use: from 10% to 90% relative humidity
without condensate.

Command device pollution situation: 2.
Power supply (according to the model):

- 115... 230 VAC (+10% -15%), 50/60 Hz, 5.5 VA max

- 230 VAC (+10% -15%), 50/60 Hz, 3 VA max.

Rated impulse voltage: 4K V.
Overvoltage category:

- II in models with power supply of 115... 230 VAC

- III in models with power supply of 230 VAC.

Class and structure of software: A.
Analogue inputs:

- 1 input (cell probe) in EVR221, EVR231, EVR261 and
EVR271 models, can be set via configuration parameter
for PTC/NTC probes

- 2 inputs (cell probe and evaporator probe) in EVR202,
EVR232, EVR203, EVR233, EVR263, EVR273, EVR204,
EVR234, EVR264 and EVR274 models, can be set via
configuration parameter for PTC/NTC probes.

PTC type analogue inputs (990 Ω @ 25°C, 77°F)
Type of sensor: KTY 81-121.
Measurement field: from -50 to 150 °C

(from -58 to 302°F).
Resolution: 0.1 °C (1 °F).
Protection: none.
PTC type analogue inputs NTC (10K Ω @ 25°C, 77°F)
Type of sensor: ß3435.
Measurement field: from -50 to 105 °C (from -40

to

220 °C).
Resolution: 0.1 °C (1 °F).
Protection: none.
Digital inputs: 1 input (door micro/multi-function 1 switch),
which can be set via configuration parameter due to normally
open contact/normally closed contact (free of voltage contact,
5 VDC, 2 mA)
Digital inputs
Power: none.
Protection: none.

Other inputs (in EVR204, EVR234, EVR264 and
EVR274 models only): 1 input that can be set via

configuration parameter for analogue input (condenser
probe)/digital input (door microswitch/multifunction 2), with
the same technical features illustrated previously.

Displays: custom 3 digit display with function icon.
Digital outputs:

1 output (electromechanical relay) in EVR221, EVR231,
EVR261 and EVR271 models

- 1 x 30 A res. output @ 250 VAC type SPST (K1) for

compressor management in models with power supply
of 115... 230 VAC, 1 x 16 A in-rush res. output @ 250
VAC type SPST (K1) for compressor management in

models with power supply of 230 VAC.
2 outputs (electromechanical relays) in EVR202 and EVR232
models

- 1 x 30 A res. output @ 250 VAC type SPST (K1) for

compressor management in models with power supply

of 115... 230 VAC, 1 x 16 A in-rush res. output @ 250

VAC type SPST (K1) for compressor management in

models with power supply of 230 VAC

- 1 x 8 A res. output @ 250 VAC type SPDT (K2) for

management of the cell light, demisting resistors, aux.

output, alarm output, door resistors, evaporator valve,

evaporator fan or defrost.

EVCO S.p.A. | Code 104R200E114 | Page 5 of 10 | PT 14/13 | version 1.1

3 outputs (electromechanical relays) in EVR203, EVR233,
EVR263 and EVR273 models

- 1 x 30 A res. output @ 250 VAC type SPST (K1) for
compressor management in models with power supply
of 115... 230 VAC, 1 x 16 A in-rush res. output @ 250
VAC type SPST (K1) for compressor management in
models with power supply of 230 VAC

- 1 x 8 A res. output @ 250 VAC type SPDT (K2) for cell
light or defrosting management

- 1 x 5 A res. output @ 250 VAC type SPST (K3) for
management of the evaporator fan.

4 outputs (electromechanical relays) in EVR204, EVR234,
EVR264 and EVR274 models

- 1 x 30 A res. output @ 250 VAC type SPST (K1) for
compressor management in models with power supply
of 115... 230 VAC, 1 x 16 A in-rush res. output @ 250
VAC type SPST (K1) for compressor management in

- 1 x 8 A res. output @ 250 VAC type SPDT (K2) for
defrosting management

- 1 x 5 A res. output @ 250 VAC type SPST (K3) for
management of the evaporator fan

- 1 x 8 A res. output @ 250 VAC type SPST (K4) for
management of the cell light, demisting resistors, aux.
output, alarm output, door resistors, evaporator valve
or condenser fan.

The maximum load current allowed is 10 A.

Type 1 or Type 2 actions: Type 1.
Complementary features of Type 1 or Type 2 actions: C.
Communication port: 1 x TTL serial port with MODBUS

communication protocol (for EVKEY programming key and
other EVCO products).
Operation with EVT100 remote indicator is only allowed in
models with power supply of 115... 230 VAC.
Signal buzzer and alarm: on request.

models with power supply of 230 VAC

13 WORKING SET-POINT AND CONFIGURATION PARAMETERS

13.1 Working set-point

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 WORKING SET-POINT

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

r1 r2 °C/°F (1) -18,0 -18,0 0,0 -18,0 -18,0 -18,0 -18,0 working set-point; see also r0

13.2 Configuration parameters

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 WORKING SET-POINT

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

SP r1 r2 °C/°F (1) -18,0 -18,0 0,0 -18,0 -18,0 -18,0 -18,0 working set-point; see also r0

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 MEASUREMENT INPUTS

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274
CA1 -25 25,0 °C/°F (1) 0,0 0,0 0,0 0,0 0,0 0,0 0,0 offset cell probe
CA2 -25 25,0 °C/°F (1)not avail.not avail. 0,0 0,0 0,0 0,0 0,0 offset evaporator probe
CA3 -25 25,0 °C/°F (1)not avail.not avail.not avail. not avail.not avail. 0,0 0,0 offset condenser probe

P001- - -1111111probe type

0 = PTC
1 = NTC

P101- - -1111111degree Celsius decimal point (during normal operation)

1 = YES

P201- - -0000000temperature unit of measurement (2)

0=°C
1=°F

P3 0 2 - - - not avail.not avail. 11111evaporator probe function

0 = probe absent
1 = defrosting probe and probe for evaporator fan thermostating
2 = probe for evaporator fan thermosatating

P4 0 1 - - - not avail.not avail.not avail.not avail.not avail. 1 1 fourth input function

0 = digital input (multi-function input 2)
1 = analogue input (condenser probe)

P6 0 4 - - - 0 0 reserved 0000value displayed by the remote indicator (not significant in models with 230 VAC

power supply)
0 = cell temperature
1 = work set-point
2 = evaporator temperature
3 = “cell temperature - evaporator temperature”
4 = condenser temperature (only if P4 = 1)

P8 0 250 0.1 s 5555555delay displaying temperature variation detected by the probes

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 MAIN REGULATOR

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

r0 0,1 (3) 15,0 °C/°F (1) 2,0 2,0 2,0 2,0 2,0 2,0 2,0 working set-point differential
r1 -99 r2 °C/°F (1) -50 -50 -50 -50 -50 -50 -50 minimum working set-point
r2 r1 99,0 °C/°F (1) 50,0 50,0 50,0 50,0 50,0 50,0 50,0 maximum working set-point
r301- - -0000000locking of working set-point calibration (using the procedure described in paragraph

9.1)

1 = YES
r4 0,0 99,0 °C/°F (1) 0,0 0,0 0,0 0,0 0,0 0,0 0,0 increase in temperature during “energy saving” function; see also i0, i5 and i10
r5 0,0 99,0 °C/°F (1) 0,0 0,0 0,0 0,0 0,0 0,0 0,0 decrease in temperature during “overcooling” function; see also r6
r6 0 240 min 30 30 30 30 30 30 30 duration of “overcooling” function; see also r5
r8 0 1 - - - 0 0 0 not avail.not avail. not avail.not avail. operation in cooling or heating (4)

0 = for cooling

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 COMPRESSROR PROTECTION SYSTEM

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274
C00240min0000000delay in switching on of compressor after the device switches on (5)
C10240min5555555minimum time between two consecutive compressor start-ups; also delay in com-

pressor start-up after conclusion of cell probe error (code “Pr1”) (6) (7)
C20240min3333333minimum compressor switch-off duration; see also C18 (6) (8)
C30240s0000000minimum duration of compressor switch on time
C4 0 240 min 10 10 10 10 10 10 10 duration of compressor switch off during cell probe error (code “Pr1”); see also C5
C5 0 240 min 10 10 10 10 10 10 10 duration of compressor switch on during cell probe error (code “Pr1”); see also C4
C6 0,0 199 °C/°F (1)not avail.not avail.not avail.not avail.not avail. 80,0 80,0 condenser temperature is higher than that at which the condenser overheating alarm

is activated (code “COH”) (9)
C7 0,0 199 °C/°F (1)not avail.not avail.not avail.not avail.not avail. 90,0 90,0 condenser temperature is higher than the limit at which the compressor blocked

alarm is activated (code “CSd”)
C8 0 15 min not avail.not avail.not avail.not avail.not avail. 1 1 blocked compressor alarm delay (“CSd” code) (10)

C10099910 h0000000number of operating hours is higher than the limit at which the need for maintenance

is signalled

0 = function absent

C14 0 300 V not avail. 200 not avail.not avail. 200 not avail. 200 mains voltage, below which the compressor is not switched on
C15 0 C14 V not avail. 190 not avail.not avail. 190 not avail. 190 mains voltage below which the compressor is switched off; see also C17
C16 C14 300 V not avail. 255 not avail.not avail. 255 not avail. 255 mains voltage above which the compressor is switched off or is not switched on; see

also C17

EVCO S.p.A. | Code 104R200E114 | Page 6 of 10 | PT 14/13 | version 1.1

C17 0 60 s not avail. 5 not avail.not avail. 5 not avail. 5 consecutive minimum duration of mains voltage permanence below C15 or above

C16, such to cause switch-off of the compressor

C18 0 60 - - - not avail. 5 not avail.not avail. 5 not avail. 5 consecutive number of compressor switch ons aborted due to mains voltage outside

of C14, C15 or C16, such to cause forced compressor switch-on (11)

0 = C4, C5 and C6 will not have effect

oo = the device will never perform forced compressor switch on

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 DEFROSTING

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

d0099h8888888if d8 = 0, 1 or 2, defrosting interval (12)

0 = interval defrosting will never be activated

if d8 = 3, maximum defrost interval

d1 0 2 - - - not avail.not avail. 00000type of defrosting

0=

ELECTRIC - during defrosting the compressor will remain off and the
defrosting output will be activated; evaporator fan activity will depend on
parameter F2

1=

BY HOT GAS - during defrosting the compressor will be switched on and the
defrosting output will be activated; evaporator fan activity will depend on
parameter F2

2=

VIA STOPPING OF COMPRESSOR - during defrosting the compressor will
remain switched off and the defrosting output will remain deactivated;

evaporator fan activity will depend on parameter F2
d2 -99 99,0 °C/°F (1)not avail.not avail. 2,0 2,0 2,0 2,0 2,0 temperature at end of defrosting (only if P3 = 1); see also d3
d3 0 99 min 30 30 30 30 30 30 30 se P3 = 0 or 2, defrosting duration

se P3 = 1, maximum defrosting duration; see also d2
0 = defrosting will not be activated

d401- - -0000000defrosting on device switch-on (5)

1 = YES

d5099min0000000if d4 = 0, minimum time between switching on of device and activation of defrost-

ing; see also i0 and i5 (5)
if d4 = 1, delay in activation of defrosting after device is switched on ; see also i0 and
i5 (5)

d601- - -1111111temperature displayed during defrosting

0 = cell temperature
1 = if at the time of defrosting activation, the cell temperature is lower than the

“working set-point + r0”, at most “working set- point + r0”; if at the time

of defrosting activation, the cell temperature is higher than the “working

set-point + r0”, at most the cell temperature when defrosting is activated
d7 0 15 min not avail.not avail. 22222dripping duration (during dripping the compressor will remain switched off and the

defrosting output will remain deactivated; if d16 = 0, evaporator fan activity will
depend on parameter F2; if d16 ≠ 0, the evaporator fan will remain switched off)

d803 (14)- - -0000000defrosting activation methods

0=

AT INTERVALS - defrosting will be activated once the device has altogether

been running for time d0

1=

AT INTERVALS - FOR COMPRESSOR SWITCH-ON - defrosting will be acti-

vated once the compressor has altogether been switched on for time d0

2=

AT INTERVALS - FOR EVAPORATOR TEMPERATURE - defrosting will be

activated when the evaporator temperature has remained below the tem-

perature d9 for a total time of d0 (15)

3=

ADAPTABLE - defrosting will be activated at intervals, whose duration will

each time depend on the duration of compressor switch-ons and the

evaporator temperature; see also d18, d19 and d22 (15)
d9 -99 99,0 °C/°F (1)not avail.not avail. 0,0 0,0 0,0 0,0 0,0 evaporator temperature is higher than that at which the defrost interval counter is

suspended (only if d8 = 2)

d11 0 1 - - - not avail.not avail. 00000enabling of defrosting alarm concluded for maximum duration (code “dFd”; only if

P3 = 1 and in absence of an evaporator probe error (code “Pr2”)
1 = YES

d15 0 99 min not avail.not avail. 00000minimum time that the compressor must be switched on before defrosting can be

activated (only if d1 = 1) (16)

d16 0 99 min not avail.not avail. 00000predripping duration (during predripping the compressor will remain switched off, the

defrosting output will be activated and the evaporator fan will remain switched off)

d18 0 999 min not avail.not avail. 40 40 40 40 40 defrosting interval (only if d8 = 3; defrosting will be activated when the compressor

has been on totally, with the evaporator temperature below that of d22, for time
d18)
0 = defrosting will never be activated due to the effect of this condition

d19 0,0 40,0 °C/°F (1)not avail.not avail. 3,0 3,0 3,0 3,0 3,0 evaporator temperature above which the defrost is activated (relative to the evapo-

rator temperatures average, or “evaporator temperatures average - d19”) (only if
d8 = 3)

d20 0 500 min not avail.not avail. 180 180 180 180 180 minimum consecutive time the compressor must be switched on such as to provoke

the defrost activation
0 = defrosting will never be activated due to the effect of this condition

d22 0,0 10,0 °C/°F (1)not avail.not avail. 2,0 2,0 2,0 2,0 2,0 evaporator temperature above which the defrosting interval is suspended (relative

to the evaporator temperatures average, or “evaporator temperatures average +
d22”) (only if d8 = 3); also look at d18

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 TEMPERATURE ALARMS

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

A0 0 1 - - - not avail.not avail. 00000temperature associated with the minimum temperature alarm (code “AL”)

0 = cell temperature
1 = evaporator temperature (17)

A1 -99 99,0 °C/°F (1) -10,0 -10,0 -10,0 -10,0 -10,0 -10,0 -10,0 temperature below that at which the minimum temperature alarm is activated (code

“AL”); see also A0, A2 and A11

A202- - -1111111type of minimum temperature alarm (code “AL”)

0 = alarm absent
1 = relative to working set-point (that is “working set-point - A1”; consider A1

without sign)

2 = absolute (that is A1)

A4 -99 99,0 °C/°F (1) 10,0 10,0 10,0 10,0 10,0 10,0 10,0 temperature higher than that at which the maximum temperature alarm is activated

(code “AH”); see also A5 and A11

A502- - -1111111type of maximum temperature alarm (code “AH”)

0 = alarm absent
1 = relative to working set-point (that is “working set-point + A4”; consider A1

without sign))

2 = absolute (that is A4)

EVCO S.p.A. | Code 104R200E114 | Page 7 of 10 | PT 14/13 | version 1.1

A6 0 240 min 120 120 120 120 120 120 120 delay in maximum temperature alarm (code “AH”) after the device is switched on

(5)
A7 0 240 min 15 15 15 15 15 15 15 temperature alarm delay (code “AL” and code “AH”)
A8 0 240 min 15 15 15 15 15 15 15 delay in maximum temperature alarm (code “AH”) from the conclusion of evapora-

tor fan standstill (18)
A9 0 240 min 15 15 15 15 15 15 15 delay in maximum temperature alarm (code “AH”) following the deactivation of the

door microswitch input (19)

A11 0,1 (3) 15,0 °C/°F (1) 2,0 2,0 2,0 2,0 2,0 2,0 2,0 differential of parameters A1and A4

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 EVAPORATOR FAN AND CONDENSER FAN

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

F0 0 5 - - - not avail.not avail. 11111evaporator fan activity during normal operation

0 = switched off

1 = switched on; see also F13, F14 and i10 (20)

2 = in parallel with the compressor; see also F9, F13, F14 and i10 (21)

3 = depending on F1; see also F9, F13 and F14 (22) (23)

4 = switched off if the compressor is switched off, dependent on F1 if the

compressor is switched on; see also F9 (22)

5 = dependent on F6; see also F9
F1 -99 99,0 °C/°F (1)not avail.not avail. -1,0 -1,0 -1,0 -1,0 -1,0 evaporator temperature above the limit at which the evaporator fan is switched off

(only if F0 = 3 or 4); see also F8
F2 0 2 - - - not avail.not avail. 00000evaporator fan activity during defrosting and dripping

0 = switched off

1 = switched on (setting parameter d7 to 0 is recommended)

2 = dependent on F0
F3 0 15 min not avail. not avail.not avail. 2222maximum duration of evaporator fan deactivation; see also F7 (during evaporator

fan deactivation the compressor can be switched on, the defrosting output will

remain deactivated and the evaporator fan will remain switched off)
F4 0 240 s not avail.not avail. 60 60 60 60 60 time duration that evaporator fan is switched off during operation for a low percent-

age of relative humidity when the compressor is switched off; see also F5 (only if

F0 = 5)
F5 0 240 s not avail.not avail. 10 10 10 10 10 time duration that evaporator fan is switched on during operation for a low percent-

age of relative humidity when the compressor is switched off; see also F4 (only if

F0 = 5)
F6 0 1 - - - not avail.not avail. 00000operation for low or high percentage of relative humidity (only if F0 = 5) (25)

0=

LOW RELATIVE HUMIDITY - the evaporator fan will operate in parallel with
the compressor; see also F4 and F5

1=HIGH RELATIVE HUMIDITY - the evaporator fan will always be switched on
F7 -99 99,0 °C/°F (1)not avail.not avail.not avail. 5,0 5,0 5,0 5,0 evaporator temperature below limit at which the evaporator fan is deactivated

(relative to working set-point, that is “working set-point + F7”); see also F3
F8 0,1 (3) 15,0 °C/°F (1)not avail.not avail. 2,0 2,0 2,0 2,0 2,0 parameter F1differential
F9 0 240 s not avail.not avail. 00000delay in the switching off of evaporator fan following the switching off of the

compressor (only if F0 = 2, 3, 4 and 5)

F11 0,0 99,0 °C/°F (1)not avail.not avail.not avail.not avail.not avail. 15,0 15,0 temperature of the condenser above which the condenser fan is switched on (“F11

+ 2.0 °C/4 °F, only if u0/u1 = 6) (26) (27)

F12 0 240 s not avail. not avail.not avail.not avail.not avail. 30 30 delay in the switching off of condenser fan following the switching off of the

compressor (only if P4 = 0 and u0/u1 = 6)

F13 0 240 10 s not avail.not avail. 30 30 30 30 30 time the evaporator fan remains turned off during function “energy saving”; see also

F14 and i10 (only if F0 = 1, 2, 3 or 4)

F14 0 240 10 s not avail.not avail. 30 30 30 30 30 time the evaporator fan remains turned on during function “energy saving”; see also

F13 and i10 (only if F0 = 1, 2, 3 or 4)

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 DIGITAL INPUTS

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

i0 0 7 - - - 4 4 not avail.not avail.not avail.not avail.not avail. effect caused by the activation of the door microswitch/multifunction 1 input; see

also i4 (28)

0 = no effect

1=

DOOR MICROSWITCH - COMPRESSOR SWITCH-OFF - the compressor will
be switched off (at maximum for time i3 or until the input is deactivated)
(29)

2=

DOOR MICROSWITCH - ACTIVATION OF DOOR MICROSWITCH INPUT ALARM

- once time i2 has passed the display will show the flashing code “id” and
the buzzer will be activated (until the input is deactivated)

3=

MULTIFUNCTION - SYNCHRONISATION OF DEFROSTING PERIODS - once
time d5 has passed defrosting will be activated

4=

MULTIFUNCTION - ACTIVATION OF ENERGY SAVING FUNCTION - the “en­ergy saving” function will be activated (until the input is deactivated),
provided the “overcooling” function is running; see also r4

5=

MULTIFUNCTION - ACTIVATION OF MULTIFUNCTION INPUT ALARM - once
time i7 has passed the display will show the flashing code “iA” and the
buzzer will be activated (until the input is deactivated)

6=

MULTIFUNCTION - ACTIVATION OF PRESSURE SWITCH ALARM - the com­pressor will be switched off, the display will show the flashing code “iA” and
the buzzer will be activated (until the input is deactivated) when the input
has been activated the number of times established with parameter i8 the
regulators will be switched off, the display will show the flashing code
“iSd” and the buzzer will be activated (until the input is deactivated and
the device is switched off and re-started or until the power supply is
interrupted); see also i7 and i9

7=

MULTIFUNCTION - SWITCHING OFF THE DEVICE - the device will be
switched off (until the input is deactivated)

i0 0 11 - - - not avail.not avail. 33333effect caused by the activation of the door microswitch/multifunction 1 input; see

also i4 (28)

0 = no effect

1=

DOOR MICROSWITCH - COMPRESSOR AND EVAPORATOR FAN SWITCH­OFF - the compressor and the evaporator fan will be switched off (at
maximum for time i3 or until the input is deactivated) (29)

2=

DOOR MICROSWITCH - EVAPORATOR FAN SWITCH-OFF - the evaporator
fan will be switched off (at maximum for time i3 or until the input is
deactivated)

3=

DOOR MICROSWITCH - CELL LIGHT SWITCH-ON - the cell light will be
switched on (only if u0/u1 = 0, until the input will be deactivated)

EVCO S.p.A. | Code 104R200E114 | Page 8 of 10 | PT 14/13 | version 1.1

4=DOOR MICROSWITCH - SWITCH-OFF OF THE COMPRESSOR, EVAPORA-

TOR FAN, SWITCH-ON OF CELL LIGHT - the compressor and the evaporator
fan will be switched off (at maximum for time i3 or until the input is
deactivated) and the cell light will be switched on (only if
u0/u1 = 0, until the input is deactivated) (29)

5=

DOOR MICROSWITCH - SWITCH-OFF OF THE EVAPORATOR FAN, SWITCH­ON OF CELL LIGHT - the evaporator fan will be switched off (at maximum
for time i3 or until the input is deactivated) and the cell light will be
switched on (only if u0/u1 = 0, until the input is deactivated)

6=

MULTIFUNCTION - SYNCHRONISATION OF DEFROSTING PERIODS - once
time d5 has passed defrosting will be activated

7=

MULTIFUNCTION - ACTIVATION OF “ENERGY SAVING” FUNCTION - the
“energy saving” function will be activated (just with effect on the compres­sor, until the input is deactivated), provided the “overcooling” function is
not running; see also r4

8=

MULTIFUNCTION - ACTIVATION OF MULTIFUNCTION INPUT ALARM - once
time i7 has passed the display will show the flashing code “iA” and the
buzzer will be activated (until the input is deactivated)

9=

MULTIFUNCTION- ACTIVATION OF THE PRESSURE SWITCH ALARM - the
compressor will be switched off, if u0/u1 = 6 the condenser fan will be
switched on, the display will show the flashing code iA” and the buzzer will
be activated (until the input is deactivated): when the input has been
activated the number of times established with parameter i8 the regulators
will be switched off, if u0/u1 = 6 the condenser fan will be switched on, the
display will show the flashing code “iSd” and the buzzer will be activated
(until the input is deactivated and the device is switched off and re-started
or until the power supply is interrupted); see also i7 and i9

10 =

MULTIFUNCTION - SWITICHING ON THE AUXILIARY OUTPUT - the auxiliary
output will be switched on (only if u0/u1 = 2, until the input is deactivated)

11 =

MULTIFUNCTION - SWITCHING OFF THE DEVICE - the device will be
switched off (until the input is deactivated)

i101- - -0000000type of door microswitch/multifunction 1 input contact

0 = normally open (active input with closed contact)

1 = normally closed (active input with open contact)

i2 -1 120 min 30 30 30 30 30 30 30 delay in signalling of door microswitch input alarm (code “id”)

-1 = the alarm will not be signalled

i3 -1 120 min 15 15 15 15 15 15 15 maximum duration of the effect caused by the activation of the door microswitch

input on the compressor and the evaporator

-1 = the effect will last until the input is deactivated

i401- - -0000000storage of door microswitch input alarm (code “id”) (30)

1 = YES

i5 0 11 - - - not avail.not avail.not avail.not avail.not avail. 7 7 effect caused by the activation of the door microswitch/multifunction 2 input; see

also i4 (28)

0 = no effect

1=

DOOR MICROSWITCH - COMPRESSOR AND EVAPORATOR FAN SWITCH­OFF - the compressor and the evaporator fan will be switched off (at
maximum for time i3 or until the input is deactivated) (29)

2=

DOOR MICROSWITCH - EVAPORATOR FAN SWITCH-OFF - the evaporator
fan will be switched off (at maximum for time i3 or until the input is
deactivated)

3=

DOOR MICROSWITCH - CELL LIGHT SWITCH-ON - the cell light will be
switched on (only if u0/u1 = 0, until the input will be deactivated)

4=

DOOR MICROSWITCH - SWITCH-OFF OF THE COMPRESSOR, EVAPORA­TOR FAN, SWITCH-ON OF CELL LIGHT - the compressor and the evaporator
fan will be switched off (at maximum for time i3 or until the input is
deactivated) and the cell light will be switched on (only if
u0/u1 = 0, until the input is deactivated) (29)

5=

DOOR MICROSWITCH - SWITCH-OFF OF THE EVAPORATOR FAN, SWITCH­ON OF CELL LIGHT - the evaporator fan will be switched off (at maximum
for time i3 or until the input is deactivated) and the cell light will be
switched on (only if u0/u1 = 0, until the input is deactivated)

6=

MULTIFUNCTION - SYNCHRONISATION OF DEFROSTING PERIODS - once
time d5 has passed defrosting will be activated

7=

MULTIFUNCTION - ACTIVATION OF “ENERGY SAVING” FUNCTION - the
“energy saving” function will be activated (just with effect on the compres­sor, until the input is deactivated), provided the “overcooling” function is
not running; see also r4

8=

MULTIFUNCTION - ACTIVATION OF MULTIFUNCTION INPUT ALARM - once
time i7 has passed the display will show the flashing code “iA” and the
buzzer will be activated (until the input is deactivated)

9=

MULTIFUNCTION- ACTIVATION OF THE PRESSURE SWITCH ALARM - the
compressor will be switched off, if u0/u1 = 6 the condenser fan will be
switched on, the display will show the flashing code iA” and the buzzer will
be activated (until the input is deactivated): when the input has been
activated the number of times established with parameter i8 the regulators
will be switched off, if u0/u1 = 6 the condenser fan will be switched on, the
display will show the flashing code “iSd” and the buzzer will be activated
(until the input is deactivated and the device is switched off and re-started
or until the power supply is interrupted); see also i7 and i9

10 =

MULTIFUNCTION- SWTICHING ON THE AUXILIARY OUTPUT - the auxiliary
output will be switched on (only if u0/u1 = 2, until the input is deactivated)

11 =

MULTIFUNCTION - SWITCHING OFF THE DEVICE - the device will be
switched off (until the input is deactivated)

i6 0 1 - - - not avail.not avail.not avail.not avail.not avail. 0 0 type of door microswitch/multifunction 2 input contact

0 = normally open (active input with closed contact)

1 = normally closed (active input with open contact)

i70120min0000000if i1 and/or i5 = 8, multifunction input alarm delay (code “iA”)

if i1 and/or i5 = 9, delay in compressor switching on after the deactivation of the

multifunction input (31)

i8015- - -0000000number of multifunction input alarms (code “iA”) such to cause a pressure switch

alarm (code “iSd”) (only if i0 and/or i5 = 9)

0 = alarm absent

EVCO S.p.A. | Code 104R200E114 | Page 9 of 10 | PT 14/13 | version 1.1

i9 1 999 min 240 240 240 240 240 240 240 time that must pass in absence of multifunction output alarms (code “iA”) so that

the alarm counter is reset (only if i0 and/or i5 = 9)

i100999min0000000time without activations of the door switch input (on condition that the cabinet

temperature has reached the working set-point) in order that function “energy

saving” is activated (it has effect on the evaporator fan only if F0 = 1, 2, 3 or 4)

0 = the function will never be activated due to the effect of this condition

i13 0 240 - - - 180 180 180 180 180 180 180 number of door switch input activations such as to provoke the defrost activation

0 = defrosting will never be activated due to the effect of this condition

i14 0 240 min 32 32 32 32 32 32 32 minimum duration of the door switch input activation such as to provoke the defrost

activation

0 = defrosting for this condition will never be activated

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 DIGITAL OUTPUTS

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

u0 0 7 - - - not avail.not avail. 7 not avail.not avail.not avail.not avail. operation controlled by second output (32)

0=

CELL LIGHT - in this case the key and parameters i0, i5 AND u2 will be
activated

1=

DEMISTER RESISTORS - in this case the key and parameter u6 will be
activated

2=

AUXILIARY OUTPUT - in this case the key and parameters i5 and u2 will
be activated

3=

ALARM OUTPUTS - in this case parameter u4 will be activated

4=

DOOR RESISTORS - in this case parameter u5 will be activated

5=

RESISTORS FOR NEUTRAL AREA OPERATION - in this case parameter u7
will be activated

6=

EVAPORATOR FAN - in this case parameters d7, d16, F, i0 and i10 will be
activated

7=DEFROST - in this case parameters d1, d7 and d16 will be activated
u0 0 1 - - - not avail.not avail.not avail. 1 1 not avail.not avail. utility managed by the second output (32)

0=

CELL LIGHT - in this case the key and parameters i0 and u2 will be
activated

1=DEFROSTING - in this case, the d0... d22 parameters will be activated
u1 0 6 - - - not avail.not avail.not avail.not avail.not avail. 0 0 operation controlled by fourth output (32)

0=

CELL LIGHT - in this case the key and parameters i0, i5 AND u2 will be
activated

1=

DEMISTER RESISTORS - in this case the key and parameter u6 will be
activated

2=

AUXILIARY OUTPUT - in this case the key and parameters i5 and u2 will
be activated

3=

ALARM OUTPUTS - in this case parameter u4 will be activated

4=

DOOR RESISTORS - in this case parameter u5 will be activated

5=

RESISTORS FOR NEUTRAL AREA OPERATION - in this case parameter u7
will be activated

6=

CONDENSER FAN - in this case parameters P4, F11 and F12 will be
activated

u2 0 1 - - - not avail.not avail. 00000enabling of manual switch on/switch off of the cell light or the auxiliary output when

the device is switched off(only if u0/u1 = 0 or 2) (33)

1 = YES
u4 0 1 - - - not avail.not avail. 1 not avail.not avail. 1 1 enabling of alarm output deactivation with the silencing of the buzzer (only if

u0/u1 = 3)

1 = YES
u5 -99 99,0 °C/°F (1)not avail.not avail. -1,0 not avail.not avail. -1,0 -1,0 temperature of the cell below which the door resistors are switched on

(“u5 - 2,0 °C/4 °F, only if u0/u1 = 4) (9)
u6 1 120 min not avail.not avail. 5 not avail.not avail. 5 5 operating time of demister resistors (only if u0/u1 = 1)
u7 -99 99,0 °C/°F (1)not avail.not avail. -5,0 not avail.not avail. -5,0 -5,0 neutral area value (relative to the work set-point, i.e. “work set-point + u7) (only

if u0/u1 = 5) (34)
u8 - - - - - - - - - not avail.not avail. - - - not avail.not avail. - - - - - - reserved
u901- - -1111111enabling the buzzer

1 = YES

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 ENERGY SAVING

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274

HE20999min0000000maximum duration of the “energy saving” function activated due to the effect of

absence of door microswitch input activation

0 = the function will last until the input is activated

PARAM. MIN. MAX. U.M. EVR221 EVR261 EVR202 EVR203 EVR263 EVR204 EVR264 SERIAL NETWORK

EVR231 EVR271 EVR232 EVR233 EVR273 EVR234 EVR274
LA 1 247 - - - 247 247 247 247 247 247 247 device address
Lb03- - -2222222baud rate

0 = 2.400 baud
1 = 4.800 baud
2 = 9.600 baud
3 = 19.200 baud

LP02- - -2222222parity

0 = none (no parity)
1 = odd
2 = even

Notes:

(1) the unit of measurement depends on P2
(2) Properly set the parameters corresponding to the regulators after modifying parameter P2
(3) the value depends on parameter P2 (0.1 °C or 1 °F)
(4) if parameter r8 is set at 1, the “energy saving” function and the defrosting functions will not be enabled
(5) the parameter has effect even after an interruption in the power supply that occurs while the device is switched on (5) the parameter has effect even after an interruption in

the power supply that occurs while the device is switched on
(6) the time established with the parameter is counted even when the device is switched off
(7) if parameter C1 is set to 0, the delay after the end of the cell probe error will be 2 min
(8) if parameter C2 is set to 0, the device will function as if parameter C18 were set to 0
(9) The parameter differential is 2.0 °C/4 °F
(10) if when the device is switched on, the condenser temperature is already above that established in parameter C7, then parameter C8 will not have effect
(11) the device verifies the mains voltage at established intervals with parameter C2; if there is a power cut, the count of the number of switch-ons aborted will be reset.
(12) the device memorises the defrosting interval count every 30 minutes; the modification of parameter d0 has effect from the conclusion of the previous defrosting interval (or the

activation of defrosting in manual mode)

EVCO S.p.A. | Code 104R200E114 | Page of 10 | PT 14/13 | version 1.1

(13) the display restores normal operation when, on conclusion of evaporator fan standstill, the cell temperature drops below that which has blocked the display (or if a temperature

alarm occurs)
(14) in the EVR221, EVR231, EVR261 and EVR271 models, the maximum value of parameter d8 is 1
(15) if parameter P3 is set to 0 or 2, the device will function as if parameter d8 were set to 0
(16) if when defrosting is activated, the operating duration of the compressor is less than the time established with parameter d5, the compressor will remain on for the amount of time

necessary to complete defrosting.
(17) if parameter P3 is set to 0, the device will function as if parameter A0 were set to 0 but it will not store the alarm
(18) during defrosting and dripping and when the evaporator fan is stopped, the temperature alarms are absent, provided that these were signalled after the activation of defrosting
(19) during activation of the door microswitch input, the maximum temperature alarm is absent, provided the alarm was signalled after the activation of the input
(20) parameters F13 and F14 have effect when the compressor is off
(21) parameters F13 and F14 have effect when the compressor is on
(22) if parameter P3 is set to 0, the device will function as if parameter F0 were set to 2
(23) parameters F13 and F14 have effect when the evaporator temperature is below the temperature established with parameter F1
(24) parameters F13 and F14 have effect when the compressor is on and the temperature of the evaporator is below the temperature established with parameter F1
(25) the parameter can also be modified using the procedure described in paragraph 4.2
(26) if parameter P4 is set to 0, the condenser fan will function in parallel with the compressor
(27) the condenser fan is off when the temperature of the condenser drops below the temperature established with parameter F11 on condition that the compressor is off
(28) if the parameter i0 and parameter i5 are set at the same value, the effect will be caused by the activation of at least one of the inputs (until both inputs are deactivated)
(29) the compressor is switched off 10 sec after the activation of the input; if the input is activated during defrosting or when the evaporator fan is deactivated, the activation will not

have any effect on the compressor
(30) the device stores the alarm once the time established in parameter i2 has expired; if parameter i2 is set to -1, the device will not store the alarm
(31) make sure that the time established with parameter i7 is less than that established with parameter i9
(32) to avoid damaging the unit connected to the instrument, change the parameter setting when the device is switched off
(33) if parameter u2 is set to 0, switching off the device may cause the cell light and/or the auxiliary output to switch off (the next time the instrument is switched on the unit connected

will remain switched off); if parameter u2 is set to 1, switching off the device will not cause the cell light or the auxiliary output to switch off (the next time the instrument is switched

on the unit connected will remain switched on).
(34) the resistors are switched on when the temperature of the cell drops below the “work set-point + u7” and are switched off when the temperature rises above the “work set-point

+ u7 + 2 °C/°F”.

EVCO S.p.A.

Via Feltre 81, 32036 Sedico (BL) ITALIA

telephone [phone] | fax [phone]

email [e-mail] | web www.evco.it

This document is exclusive property of EVCO. EVCO does not assume any liability regarding possible errors stated.

The customer (manufacturer, installer or final user) assumes all liability regarding configuration of the device.

EVCO does not take any responsibility about damages coming by the non-observance of additional information.

EVCO reserves the right to make any change without prejudice the basic safety and operating features.