Guide - Supplemental
EVCO S.p.A. | EV3294 | Instr uction sheet ver. 1.0 | Code 1043294E103 | Page 1 of 2 | PT 44/16
EV3294
Controllers for refrigerated cabinets, counters and islands, with energy-saving strategies and
compatible with the EVconnect APP
E ENGLISH
- Controllers for low temperature units.
- Power supply 115... 230 VAC or 12-24 VAC/DC (according to the model).
- Incorporated clock (according to the model).
- Cabinet probe and evaporator probe (PTC/NTC).
- Door switch input.
- Compressor relay 16 A res. @ 250 VAC.
- Alarm buzzer.
- Incorporated Bluetooth Low Energy sensor (according to the model).
- TTL MODBUS slave port for EVconnect app, EPoCA remote monitoring system or for
BMS (according to the model).
- Cooling or heating operation.
1 MEASUREMENTS AND INSTALLATION
Measurements in mm (inches). To be fitted to a panel, snap-in brackets provided.
INSTALLATION PRECAUTIONS
- The thickness of the panel must be between 0.8 and 2.0 mm (1/32 and 1/16 in)
- Ensure that the working conditions are within the limits stated in the TECHNICAL
SPECIFICATIONS section.
- Do not install the device close to heat sources, equipment with a strong magnetic field,
in places subject to direct sunlight, rain, damp, excessive dust, mechanical vibrations
or shocks.
- In compliance with safety regulations, the device must be installed properly to ensure
adequate protection from contact with electrical parts. All protective parts must be
fixed in such a way as to need the aid of a tool to remove them.
2 ELECTRICAL CONNECTION
N.B.
- Use cables of an adequate section for the current running through them.
- To reduce any electromagnetic interference connect the power cables as far away
as possible from the signal cables.
PRECAUTIONS FOR ELECTRICAL CONNECTION
- If using an electrical or pneumatic screwdriver, adjust the tightening torque.
- If the device has been moved from a cold to a warm place, the humidity may have
caused condensation to form inside. Wait about an hour before switching on the
power.
- Make sure that the supply voltage, electrical frequency and power are within the set
limits. See the section TECHNICAL SPECIFICATIONS.
- Disconnect the power supply before doing any type of maintenance.
- Do not use the device as safety device.
- For repairs and for further information, contact the EVCO sales network.
3 FIRST-TIME
1. Install following the instructions given in the section MEASUREMENTS AND INSTALLA-
TION.
2. Power up the device as shown in the section ELECTRICAL CONNECTION and an internal
test will be run.
The test normally takes a few seconds, when it is finished the display will switch off.
3. Configure the device as shown in the section Setting configuration parameters.
Recommended configuration parameters for first-time use.
PAR. DEF. PARAMETER MIN... MAX.
SP 0.0 setpoint r1... r2
P0 1 probe type 0 = PTC 1 = NTC
P2 0 temperature unit of measurement 0 = °C 1 = °F
d1
0
defrost type
0 = electric 1 = hot gas
2 = compressor stopped
Then check that the remaining settings are appropriate; see the section CONFIGURA-
TION PARAMETERS.
4. Disconnect the device from the mains.
5. Make the electrical connection as shown in the section ELECTRICAL CONNECTION with-
out powering up the device.
6. For the connection in an RS-485 network connect the interface EVIF22TSX or
EVIF23TSX, to activate real time functions connect the module EVIF23TSX, to use the
device with the APP EVconnect connect the interface EVIF25TBX (or use EV3... XRV). To
use the device with the EPoCA remote monitoring system, connect the EVIF25TWX
module; see the relevant instruction sheets. If EVIF22TSX or EVIF23TSX is used,
set parameter bLE to 0.
7. Power up the device.
4 USER INTERFACE AND MAIN FUNCTIONS
4.1 Switching the device on/off
1.
If POF = 1, touch the ON/STAND-BY key for 4 s.
If the device is switched on, the display will show the P5 value ("cabinet temperature" default);
if the display shows an alarm code, see the section ALARMS.
LED ON OFF FLASHING
compressor on
compressor off
- compressor protection active
- setpoint setting active
defrost or pre-dripping
active
-
- defrost delay active
- dripping active
evaporator fan on
evaporator fan off
evaporator fan stop active
HACCP
saved HACCP alarm in
EVlink
-
-
energy saving active
-
-
request for compres-
sor service
-
- settings active
- access to additional functions
active
- operation with EVconnect APP
active
°C/°F
view temperature
-
overcooling or overheating active
AUX
auxiliary load on
auxiliary load off
- auxiliary load on by digital input
- auxiliary load delay active
device off
device on
device on/off active
If Loc = 1 (default) and 30 s have elapsed without the keys being pressed, the display will
show the “Loc” label and the keypad will lock automatically.
4.2 Unlock keypad
Touch a key for 1 s: the display will show the label “UnL”.
4.3 Set the setpoint
Check that the keypad is not locked.
1.
Touch the SET key.
2.
Touch the UP or DOWN key within 15 s to set the value within
the limits r1 and r2 (default “-50... 50”)
3.
Touch the SET key (or do not operate for 15 s).
4.4 Activate manual defrost (if r5 = 0, default)
Check that the keypad is not locked and that overcooling is not active.
1.
Touch the UP key for 2 s.
If P3 = 1 (default), defrost is activated provided that the evaporator temperature is lower than
the d2 threshold.
4.5 Cabinet light on/off (if u1 = 0, default)
1.
Touch the ON/STAND-BY key.
- if u1 = 1, the demisting switch on for the u6 duration.
- if u1 = 2 and the keypad is not locked, the button-operated load switches on/off.
4.6 Silence buzzer
Touch a key.
If u1 = 3 and u4 = 1, the alarm output switches off.
5 ADDITIONAL FUNCTIONS
5.1 Activate/deactivate overcooling, overheating and manual energy saving
Check that the keypad is not locked.
1.
Touch the DOWN key.
FUNCTION CONDITION CONSEQUENCE
overcooling
r5 = 0, r8 = 1 and defrost
not active
the setpoint becomes “setpoint -
r6”, for the r7 duration
overheating
r5 and r8 = 1
the setpoint becomes “setpoint +
r6”, for the r7 duration
energy saving
r5 = 0 and r8 = 2
the setpoint becomes “setpoint +
r4”, at maximum for HE2 duration
5.2 View/delete compressor functioning hours and view comp. start-up number
Check that the keypad is not locked.
1.
Touch the DOWN key for 4 s.
2.
Touch the UP or DOWN key within 15 s to select a label.
LAB. DESCRIPTION
CH view compressor functioning hours (hundreds)
rCH delete compressor functioning hours
nS1 compressor start-up number (thousands)
3.
Touch the SET key.
4.
Touch the UP or DOWN key to set “149” (when label “rCH” is se-
lected).
5.
Touch the SET key.
6.
Touch the ON/STAND-BY key (or do not operate for 60 s) to exit
the procedure.
5.3 View the temperature detected by the probes
Check that the keypad is not locked.
1.
Touch the DOWN key for 4 s.
2.
Touch the UP or DOWN key within 15 s to select a label.
LAB. DESCRIPTION
Pb1
cabinet temperature (if P4 = 0, 1 or 2)
inlet air temperature (if P4 = 3)
Pb2 evaporator temperature (if P3 = 1 or 2)
Pb3 auxiliary temperature (if P4 = 1, 2 or 3)
Pb4 calculated product temperature (CPT; if P4 = 3)
3.
Touch the SET key.
4.
Touch the ON/STAND-BY key (or do not operate for 60 s) to exit
the procedure.
6 SETTINGS
6.1 Setting configuration parameters
1.
Touch the SET key for 4 s: the display will show the label “PA”.
2.
Touch the SET key.
3.
Touch the UP or DOWN key within 15 s to set the PAS value (de-
fault “-19”).
4.
Touch the SET key (or do not operate for 15 s): the display will
show the label “SP”.
5.
Touch the UP or DOWN key to select a parameter.
6.
Touch the SET key.
7.
Touch the UP or DOWN key within 15 s to set the value.
8.
Touch the SET key (or do not operate for 15 s).
9.
Touch the SET key for 4 s (or do not operate for 60 s) to exit the
procedure.
6.2 Set the date, time and day of the week (available in EV3... XRV or if
EVIF23TSX, EVIF25TWX or interface EVIF25TBX is connected)
N.B.
- Do not disconnect the device from the mains within two minutes since the setting
of the time and day of the week.
- if the device communicates with the EVconnect app, the date, time and day of the
week will be automatically set by the smartphone or tablet.
Check that the keypad is not locked.
1.
Touch the DOWN key for 4 s.
2.
Touch the UP or DOWN key within 15 s to select the label “rtc”.
3.
Touch the SET key: the display will show the label “yy” followed
by the last two figures of the year.
4.
Touch the UP or DOWN key within 15 s to set the year.
5. Repeat actions 3. and 4. to set the next labels.
LAB. DESCRIPTION OF THE NUMBERS FOLLOWING THE LABEL
n month (01… 12)
d day (01… 31)
h time (00… 23)
n minute (00… 59)
6.
Touch the SET key: the display will show the label for the day of
the week.
7.
Touch the UP or DOWN key within 15 s to set the day of the
week.
LAB. DESCRIPTION
Mon Monday
tuE Tuesday
UEd Wednesday
thu Thursday
Fri Friday
Sat Saturday
Sun Sunday
8.
Touch the SET key: the device will exit the procedure.
9.
Touch the ON/STAND-BY key to exit the procedure beforehand.
7 CONFIGURATION PARAMETERS
N. PAR. DEF. SETPOINT MIN... MAX.
1 SP 0.0 setpoint r1... r2
N. PAR. DEF. ANALOGUE INPUTS MIN... MAX.
2
CA1
0.0
cabinet probe offset
-25... 25 °C/°F
if P4 = 3, air in probe offset
3 CA2 0.0 evaporator probe offset -25... 25 °C/°F
4 CA3 0.0 auxiliary probe offset -25... 25 °C/°F
5 P0 1 probe type 0 = PTC 1 = NTC
6 P1 1 enable °C decimal point 0 = no 1 = yes
7
P2
0
temperature unit of measure-
ment
0 = °C 1 = °F
8
P3
1
evaporator probe function
0 = disabled
1 = defrost + fan
2 = fan
9
P4
0
configurable input function
0 = digital input
1 = condenser probe
2 =
critical temperature probe
3 = air out probe
if P4 = 3, regulation temperature
= product temperature (CPT)
10
P5
0
value displayed
0 = regulation temperature
1 = setpoint
2 = evaporator temperature
3 = auxiliary temperature
4 = air in temperature
11
P7
5
air in weight for calculated prod-
uct temperature (CPT)
0... 10 % x 10
CPT = {[(P7 x (air in)] +
[(100 - P7) x (air out)] :
100}
12
P8 5 display refresh time 0... 250 s : 10
N. PAR. DEF. REGULATION MIN... MAX.
13
r0 2.0 setpoint differential 1... 15 °C/°F
14
r1 -50 minimum setpoint -99 °C/°F... r2
15
r2 50.0
maximum setpoint r1... 199 °C/°F
16
r4 0.0 setpoint offset in energy saving 0... 99 °C/°F
17
r5
0
cooling or heating operation
0 = cooling
1 = heating
18
r6
0.0
setpoint offset in overcool-
ing/overheating
0... 99 °C/°F
19
r7 30 overcooling/overheating duration 0... 240 min