The temperature measured by probe T1 may be corrected with a fixed offset by assigning a value other than 0 to the parameter
OS1
.
Also probe T2 may be corrected with a fixed offset, in this case parameter
OS2
. Additionally, prior to display, the temperature is
treated by an algorithm that allows the simulation of a thermal mass directly proportional to the
SIM
value. The result is a reduction in
the fluctuation of the displayed value.
2.3 INFO
MENU
. Pressing the button
and releasing it immediately activates the information selection menu. From this menu you
can display the instantaneous temperatures T1 and T2; the maximum (THI) and minimum (TLO) stored temperature; the total operating
time of the condenser since its last cleaning (CND) and the keypad status (LOC). The information to be displayed can be selected
sequentially, by pressing
repeatedly or quickly via the buttons
and
to scroll through the menu. Exit from the info menu is by
pressing button
or automatic after 6 seconds of not using the keypad.
In the
operating mode it’s also possible to reset the recordings THI and TLO and the hour counter CND by pressing buttons
+
simultaneously while the value is displayed.
2.4 S
ETPOINT
.
The setpoint value is displayed by pressing and keeping button
pressed for at least half second. The value is
programmed by pressing buttons
+
or
within the minimum limit
SPL
and the maximum limit
SPH
. When the button is
released, the newly programmed value is stored. The actual setpoint, minimum and maximum setpoint limits depend on the selection
active when the operation is performed.
2.5 K
EYPAD LOCK
.
The keypad lock avoids undesired, potentially dangerous operations, which might be attempted when the
controllers is operating in a public place. In the INFO mode, through the buttons
and
it’s possible to assign YES or NO to the
parameter
LOC
. With LOC=YES all keypad commands are inhibited. To resume normal operation of keypad, adjust setting so that
LOC=NO.
2.6 D
EFROSTING
.
By assigning a value grater than 0 to the parameter
DDY
, during defrost the indication
is displayed instead
of the temperature. In this case, after defrost and for the time programmed in DDY, the display indication
shows that the normal
thermostatic cycle is being resumed.
2.7 A
LARM
.
An anomaly in the operation is displayed through the lighting up of an abbreviation showing its cause:
/
high/low
alarm temperature in the cabinet,
door open,
periodic condenser cleaning,
/
fault of probe T1 / T2.
2.8 S
ETUP
.
The setup is accessed by pressing the buttons +
in succession and keeping them pressed simultaneously for 5
seconds. The available parameters appear in TABLE 2 as shown below.
3. CONFIGURATION
The controller is configured for the system to be controlled by programming the operating parameters, that is, through the setup (see par.
2.8). In SETUP, press button
to pass from one parameter to the next, and press button
to go back. To display the value of a
parameter press
, to modify it press buttons
+
or
simultaneously. Exit from the setup is by pressing button
or automatic
after 30 seconds of not using the keypad.
Table 2
0/I
i
•
set
i
•
set
i
•
set
0/I
E2
E1
CL
DO
LO
HI
REC
DEF
i
•
set
i
•
set
0/I
i
•
set
i
•
set
0/I
i
•
set
i
•
set
INSTRUCTIONS FOR INSTALLATION AND USE.
Par. Adjustment
Function
Sect.
SCL
1°C/2°C/°F
Readout scale
2.2
SPL
-50.. SPH [°]
Minimum temperature set point
2.4
SPH
SPL.. +120 [°]
Maximum temperature set point
2.4
SP
SPL.. SPH [°]
Effective temperature set point
4.1
C-H
REF/HEA
Refrigerating/Heating selection
4.1
HYS
+1.. +100 [°]
Thermostat hysteresis
4.1
CRT
0.. 30 [min]
Compressor rest time
4.1
CT1
0.. 30 [min]
Compressor run with sensor T1 failure
4.2
CT2
0.. 30 [min]
Compressor stop with sensor T1 failure
4.2
CSD
0.. 30 [min]
Compressor stop delay from door opening
4.3
DFR
0.. 24
Defrost frequency /24h
5.1
DLI
-50.. +120 [°]
Defrost end temperature
5.3
DTO
1.. 120 [min]
Maximum defrosting duration
5.3
DTY
OFF/ELE/GAS
Defrost type
5.2
DRN
0.. 30 [min]
Drain down time
5.2
DDY
0.. 60 [min]
Defrost display control
2.6
FID
YES/NO
Fans active during defrost
6.3
FDD
-50.. +120 [°]
Fan re-start delay temperature
6.4
FTC
YES/NO
Evaporator fan timed control
6.1
FT1
0.. 180 [sec]
Fan stop delay
6.1
FT2
0.. 30 [min]
Timed fan stop
6.1
FT3
0.. 30 [min]
Timed fan run
6.1
Par.
Adjustment
Function
Sect.
ATL
-120.. 0 [°]
Low alarm differential
7.1
ATH
0.. +120 [°]
High alarm differential
7.1
ATD
0.. 120 [min]
Alarm temperature delay
7.1
ADO
0.. 30 [min]
Door alarm delay
7.2
ACC
0.. 52 [weeks]
Periodic condenser cleaning
7.3
IISM
NON/MAN
2nd set switching mode
9.1
IISL
-50.. IISH [°]
Minimum 2nd temperature set
2.4
IISH
IISL.. +120 [°]
Maximum 2nd temperature set
2.4
IISP
IISL.. IISH [°]
Effective 2nd temperature set
4.1
IIHY
+1.. +100 [°]
Hysteresis of 2nd temperature set
4.1
IIDF
0.. 24
Defrost frequency /24h In mode 2
5.1
IIFT
YES/NO
Evaporator fan timed control in mode 2
6.1
SB
YES/NO
Button enabling
2.1
DS
YES/NO
Door switch enabling
7.2
INP
SN4/ST1
NTC/PTC probe selection
9.2
OS1
-125.. +125 [°]
probe T1 offset
2.2
T2
YES/NO
Probe T2 enabling
1.3
OS2
-125.. +125 [°]
Probe T2 offset
2.2
TLD
1.. 30 [min]
Delay for min./max. temperature storage
8
SIM
0.. 100
Display slowdown
2.2
ADR
0.. 255
Not active
- -
0/I
