EVCO EV3B32N7 User Manual

Page 2

WORKING SETPOINT AND CONFIGURATION PARAMETERS

9.1

Working Setpoint

MIN.

MAX.

U.M.

DEF.

WORKING SETPOINT

°C/°F (1)

0,0

working setpoint; see also r0 and r12

9.2

Parametri di configurazione

PARAM.

MIN.

MAX.

U.M.

DEF.

WORKING SETPOINT

°C/°F (1)

0,0

working setpoint; see also r0 and r12

PARAM.

MIN.

MAX.

U.M.

DEF.

ANALOG INPUTS

CA1

-25

25,0 °C/°F (1)

0,0

room probe offset

CA2

-25

25,0 °C/°F (1)

0,0

if P4 = 1 or 2, evaporator probe offset
if P4 = 3, condenser probe offset

- - -

probe type (0 = PTC; 1 = NTC)

- - -

degree Celsius decimal point (during normal operation)
1

YES

- - -

unit of measurement for temperature (2)
0

°C (Celsius degree; resolution depends on P1 parameter)

°F (Fahrenheit degree; resolution is 1 °F)

- - -

second analog input function
0

absent

evaporator probe (defrost probe and probe determining the activity
of the evaporator fan)

evaporator probe (probe determining the activity of the evaporator
fan)

condenser probe

- - -

magnitude displayed during normal operation
0

room temperature

working setpoint

if P4 = 0, “- - -”
if P4 = 1 or 2, evaporator temperature
if P4 = 3, condenser temperature

250

0,1 s

delayed display of temperature changes as detected by the probes

PARAM.

MIN.

MAX.

U.M.

DEF.

MAIN REGULATOR

0,1

15,0 °C/°F (1)

2,0

working setpoint differential; see also r12

-99

°C/°F (1)

-40

minimum working setpoint

99,0 °C/°F (1) 50,0

maximum working setpoint

0,0

99,0 °C/°F (1)

0,0

working setpoint increase during the “energy saving" function; see also i0, i10
and HE2

- - -

cooling or heating operation (3)
0

cooling

heating

r12

- - -

working setpoint differential type
0

asymmetric

symmetric

PARAM.

MIN.

MAX.

U.M.

DEF.

COMPRESSOR PROTECTION SYSTEM

240

min

delay in switching on of compressor after the device switches on (4)

240

min

minimum compressor switch-off duration (5)

240

minimum duration of compressor switch on time

240

min

duration of compressor switch off time during a room temperature probe error
(code “Pr1”); see also C5

240

min

duration of compressor switch on time during a room temperature probe error
(code “Pr1”); see also C4

0,0

199

°C/°F (1) 80,0

condenser temperature is higher than that at which the condenser overheat-
ing alarm is activated (code “COH”) (6)

0,0

199

°C/°F (1) 90,0

condenser temperature above which the compressor shut down alarm is
activated (code “CSd”)

min

compressor shut down alarm delay (code “CSd”) (7)

PARAM.

MIN.

MAX.

U.M.

DEF.

DEFROST

if d8 = 0, 1 or 2, defrost interval
0

interval defrost will never be activated

if d8 = 3, maximum defrost interval

- - -

type of defrost
0

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

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

VIA STOPPING OF COMPRESSOR - during defrost the compressor will
remain switched off and the defrost output will remain deactivated;
evaporator fan activity will depend on F2 parameter

-99

99,0 °C/°F (1)

2,0

evaporator temperature at end of defrost; see also d3

min

if P4 = 0, 2 or 3, defrost duration
if P4 = 1, maximum defrost duration; see also d2
0

defrost will not be activated

- - -

defrost when device is switched on (4)
1

YES

min

if d4 = 0, minimum time between switching on of device and activation of
defrost (4)
if d4 = 1, delay in activation of defrost after device is switched on (4)

- - -

temperature displayed during defrost (only if P5 = 0)
0

room temperature

if on activation of defrost, the room temperature is below the “work
setpoint + + ∆t”, at maximum “ work setpoint + ∆t”; if on activation
of defrost, the room temperature is above “work setpoint + ∆t”, at
maximum the room temperature on activation of defrost (8) (9)

label “dEF”

min

dripping duration (during dripping the compressor will remain switched off and
the defrost output will remain deactivated; evaporator fan activity will depend
on F2 parameter)

- - -

defrost activation methods
0

AT INTERVALS - FOR TIME - defrost will be activated once the device
has altogether been running for time d0

AT INTERVALS - FOR COMPRESSOR SWITCH-ON - defrost will be acti-
vated once the compressor has altogether been switched on for time
d0

AT INTERVALS - FOR EVAPORATOR TEMPERATURE - defrost will be
activated when the evaporator temperature has remained below the
temperature d9 for a total time of d0 (10)

ADAPTIVE - defrost will be activated at intervals, whose duration will
each time depend on the duration of compressor switch-ons, the evapo-
rator temperature and the door switch input activation; see also d18,
d19, d20, d22, i13 and i14 (10)

-99

99,0 °C/°F (1)

0,0

evaporator temperature is higher than that at which the defrost interval counter
is suspended (only if d8 = 2)

d11

- - -

defrost alarm switches off once maximum time limit has been reached (code
“dFd”; only if P4 = 1 and in absence of evaporator probe error (code “Pr2”)
1

YES

d15

min

minimum time that the compressor must be switched on before defrost can be
activated (only if d1 = 1) (11)

d18

999

min

defrost interval (defrost will be activated when the compressor has been on
totally, with the evaporator temperature below that of d22, for time d18; only if
d8 = 3)
0

defrost will never be activated due to the effect of this condition

d19

0,0

40,0 °C/°F (1)

3,0

evaporator temperature below which the defrost is activated (relative to the
evaporator temperatures average, or “evaporator temperatures average - d19”;
only if d8 = 3)

d20

999

min

180

minimum consecutive time the compressor must be switched on such as to
provoke the defrost activation
0

defrost will never be activated due to the effect of this condition

d22

0,0

19,9 °C/°F (1)

2,0

evaporator temperature above which the defrost interval count shall be sus-
pended (relating to the average of evaporator temperatures, that is to say,
"evaporator temperatures average + d22”; only if d8 = 3); see also d18

PARAM.

MIN.

MAX.

U.M.

DEF.

TEMPERATURE ALARMS

0,0

99,0 °C/°F (1) 10,0

room temperature below which the minimum temperature alarm is triggered
(code "AL"; it concerns the working setpoint, that is to say, "working setpoint -
A1"); see also A11
0

alarm absent

0,0

99,0 °C/°F (1) 10,0

room temperature above which the maximum temperature alarm is triggered
(code “AH”; it concerns the working setpoint, that is to say, "working setpoint +
A4”); see also A11
0

alarm absent

10 min

delay in maximum temperature alarm (code “AH”) after the device is switched
on (4)

240

min

minimum temperature alarm delay (code "AL") and maximum temperature
alarm delay (code "AH")

240

min

delay in maximum temperature alarm (code “AH”) from the conclusion of
evaporator fan standstill (12)

240

min

delay in maximum temperature alarm (code “AH”) following the deactivation of
the door switch input (13)

A11

0,1

15,0 °C/°F (1)

2,0

differential of A1 and A4 parameters

PARAM.

MIN.

MAX.

U.M.

DEF.

EVAPORATOR FAN

- - -

evaporator fan activity during normal operation
0

switched off

switched on; see also F4, F5, i10 and HE2 (14)

in parallel with the compressor; see also F4, F5, i10 and HE2 (15)

depending on F1; see also F4, F5, i10 and HE2 (16) (17)

switched off if the compressor is switched off, depending on F1 if the
compressor is switched on; see also F4, F5, i10 and HE2 (16) (18)

-99

99,0 °C/°F (1)

-1,0

evaporator temperature above (if r5 = 0) or below (if r5 = 1) which the
evaporator fan is switched off (only if F0 = 3 o 4) (6)

- - -

evaporator fan activity during defrost and dripping
0

switched off

switched on

depending on F0

min

duration of evaporator fan standstill (during evaporator fan deactivation the
compressor can be switched on, the defrost output will remain deactivated and
the evaporator fan will remain switched off)

240

10 s

duration of evaporator fan switch off during “energy saving” function; see also
F5, i10 and HE2

240

10 s

duration of evaporator fan switch on during “energy saving” function; see also
F4, i10 and HE2

PARAM.

MIN.

MAX.

U.M.

DEF.

DIGITAL INPUTS

- - -

effect caused by the activation of the digital input
0

no effect

DOOR SWITCH - DOOR SWITCH INPUT ALARM ACTIVATION (code “id”)
- the compressor and the evaporator fan will be switched off (at
maximum for time i3 or until the input is deactivated); see also i2 (19)

DOOR SWITCH - DOOR SWITCH INPUT ALARM ACTIVATION (code “id”)
- the evaporator fan will be switched off (at maximum for time i3 or
until the input is deactivated); see also i2

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 for 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.

EVCO S.p.A.
Via Feltre 81, 32036 Sedico (BL) ITALY
phone +39 0437 8422 | fax +39 0437 83648
email [email protected] | web www.evco.it

MULTIFUNCTION - ACTIVATION OF “ENERGY SAVING” FUNCTION -
the “energy saving” function will be activated (just with effect on
the compressor, until the input is deactivated); see also r4

MULTIFUNCTION - ACTIVATION OF MULTIFUNCTION INPUT ALARM
(code “iA”) - the device will continue to operate normally; see also
i2

MULTIFUNCTION - ACTIVATION OF THE MAXIMUM PRESSURE SWITCH
ALARM (code “iA”) - the compressor will be switched off (until the
input is deactivated); see also i2

- - -

type of digital input contact
0

normally open (active input with closed contact)

normally closed (active input with open contact)

-1

120

min

if i0 = 1 or 2, delay in signalling of door switch input alarm (code “id”)
-1

the alarm will not be signalled

if i0 = 4, delay in signalling of multifunction input alarm (code “iA”)
-1

the alarm will not be signalled

if i0 = 5, delay in switching off of compressor after the activation of the
maximum pressure switch alarm (code “iA”)
-1

reserved

-1

120

min

maximum duration of the effect caused by the activation of the door switch
input alarm (code “id”) on the compressor
-1

the effect will last until the input is deactivated

i10

999

min

time that must pass in absence of door switch input activations (after the
room temperature has reached the working setpoint) for the “energy saving”
function to be activated; see also r4, F4, F5 and HE2
0

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

i13

240

- - -

180

number of door switch input activations such as to provoke the defrost
activation
0

defrost will never be activated due to the effect of this condition

i14

240

min

minimum duration of the door switch input activation such as to provoke the
defrost activation
0

defrost will never be activated due to the effect of this condition

PARAM.

MIN.

MAX.

U.M.

DEF.

DIGITAL OUTPUTS (20)

- - -

load managed by the second output
0

defrost

evaporator fan

alarm

PARAM.

MIN.

MAX.

U.M.

DEF.

ENERGY SAVING

HE2

999

min

maximum duration of the “energy saving” function activated due to the effect
of absence of door switch input activation; see also r4, F4, F5 and i10
0

the function will last until the input is activated

HE3

240

min

time interval with no key strokes, after which the "low consumption" function
is activated
0

the mode shall never be aactivated

PARAM.

MIN.

MAX.

U.M.

DEF.

VARIOUS

POF

- - -

key activation

YES

PAS

-99

999

min

-19

access password for the configuration parameters
0

the password need not be set

Notes:
(1)

the unit of measurement depends on P2

(2)

properly set the parameters corresponding to the regulators after setting P2 parameter

(3)

if r5 parameter is set at 1, the “energy saving" function and the defrost management will be switched off; see also
F1 parameter

(4)

the parameter has effect even after an interruption in the power supply that occurs while the device is switched on

(5)

the time set by paramenter C2 is counted also when the device is off

(6)

the differential of C8 parameter is 2.0°C/4°F

(7)

if when the device is switched on, the condenser temperature is already above that established in C7 parameter,
then C8 parameter will not have effect

(8)

the value ∆t depends on r12 parameter (r0 if r12 = 0, r0/2 if r12 = 1)

(9)

the display restores normal operation when, at the end of the dripping phase, room temperature falls below the
value that locked the display (or if a temperature alarm is triggered)

(10)

if P4 parameter is set at 0, 2 or 3, the device will function as if d8 parameter were set at 0

(11)

if when defrost is activated, the operating duration of the compressor is less than the time established with d15
parameter, the compressor will remain on for the amount of time necessary to complete defrost, then the defrost
shall be activated

(12)

during defrost, dripping and evaporator fan standstill, the maximum temperature alarm is absent, provided that it
was triggered after defrost activation.

(13)

during activation of the door switch input, the maximum temperature alarm is absent, provided the alarm was
signalled after the activation of the input

(14)

F4 and F5 parameters have effect when the compressor is off

(15)

F4 and F5 parameters have effect when the compressor is on

(16)

if P4 parameter is set at 2, the device will function as if F0 parameter were set at 2

(17)

F4 and F5 parameters have effect when the evaporator temperature is below the temperature established with F1
parameter

(18)

F4 and F5 parameters have effect when the compressor is on and the temperature of the evaporator is below the
temperature established with F1 parameter

(19)

the compressor is switched off 10 s after the activation of the input; if the input is activated during defrost or when
the evaporator fan is deactivated, the activation will not have any effect on the compressor

(20)

per evitare di danneggiare l’utenza collegata, modificare il parametro quando il dispositivo è spento.

This manual is related to the following products:

EV3B22N7