-12-
PAR
RANGE
DESCRIPTION
DDM
RT;
LT;
SP;
DEF
Defrost display mode. During defrost the display will show:
RT
: the real temperature;
LT
: the last temperature before defrost;
SP
: the current setpoint value;
DEF
: “dEF”.
DDY
0...60min
Display delay. The display shows the information selected with parameter DDM during defrost
and for DDY minutes after defrost termination.
FID
NO/YES
Fans active during defrost.
FDD
-58...180°
Evaporator fan re-start temperature after defrost.
FTO
0...120min Maximum evaporator fan stop after defrost.
FCM
NON;
TMP;
TIM
Fan mode during thermostatic control.
NON
: The fans remain ON all the time;
TMP
: Temperature-based control. The fans are ON when the compressor is ON. When the
compressor is turned OFF, the fans remain ON as long as the temperature difference Te-Ta
is greater than FDT. The fans are turned ON again with FDH differential. (Te = Evaporator
temperature, Ta = Air temperature);
TIM
: Timed-based control. The fans are ON when the compressor is ON. When the compressor
is OFF, the fans switch ON and OFF according to parameters FT1, FT2,FT3
FDT
-12...0°
Evaporator-Air temperature difference for the fans to turn OFF after the compressor has stopped.
FDH
1...12°
Temperature differential for fan re-start.
Example: FDT = -1, FDH=3. In this case, after the compressor has stopped, the fans are OFF when
Te > Ta - 1 (FDT), whereas the fans are ON when Te < Ta - 4 (FDT-FDH).
FT1
0...180sec
Fan stop delay after compressor/heater stop. See Fig. 2
FT2
0...180
Timed fan stop in x10 seconds. With FT2=0 the fans remain on all the time.
FT3
0...180
Timed fan run in x10 seconds. With FT3=0, and FT2 > 0, the fans remain off all the time.
ATM
NON;
ABS;
REL
Alarm threshold management.
NON
: all temperature alarms are inhibited (the following parameter will be ACC).
ABS
: the values programmed in ALA and AHA represent the real alarm thresholds.
REL
: the alarm threshold is obtained by the sum of setpoint, thermostat differential and ALR/
AHR.
ALA
-58... 180°
Low temperature alarm threshold.
AHA
-58... 180°
High temperature alarm threshold.
ALR
-12... 0°
Low temperature alarm differential. With ALR=0 the low temperature alarm is excluded.
AHR
0... 12°
High temperature alarm differential. With AHR=0 the high temperature alarm is excluded.
ATI
T1; T2; T3
Probe used for temperature alarm detection.
ATD
0... 120 min Delay before alarm temperature warning.
ACC
0...52 weeks Condenser periodic cleaning. When the compressor operation time, expressed in weeks, matches
the ACC value programmed, “CL” flashes in the display. With ACC=0 the condenser cleaning warning
is disabled and CND disappears from Info Menu.
IISM
NON;
MAN;
ECO;
DI
Switchover mode to second parameter set
NON
: inhibition to use the second parameter group (the following parameter will be SB).
MAN
: button switches the two parameter groups over.
ECO
: automatic switchover to the second parameter group, when ECO conditions are detected.
DI
: switchover to the second parameter group when DIx input is on.
IISL
-58... IISH
Minimum limit for IISP setting.
IISH
IISL... 180° Maximum limit for IISP setting.
IISP
IISL... IISH Setpoint in mode 2.
IIH0
1... 10°
Thermostat OFF->ON differential in mode 2.
VI. CONTROL BASICS (continued)
