Dixell
Installing and Operating Instructions
release 7.0
ALU MAXIMUM temperature alarm
: (with
ALC = 0
or
2
, from 0 to 50°C/90°F; with
ALC = 1
o
3
, from
ALL
÷
99°C/196°F) when this temperature is reached the alarm is enabled, after the ALd delay time.
ALL Minimum temperature alarm
: (with
ALC = 0
or
2
, from 0 to 50°C/90°F; with
ALC = 1
or
3
, from -
57°C/°F to ALU) when this temperature is reached the alarm is enabled, after the ALd delay time.
ALd Temperature alarm delay
: (0
÷
120 min) time interval between the detection of an alarm condition and
alarm signalling.
dAO Delay of temperature alarm at startup
: (from 0 min to 720 min; res. 10min) time interval between the
detection of the temperature alarm condition after instrument power on and alarm signalling.
OdS Outputs activation delay at start up:
(0÷120min) This function is enabled at the initial start up of the
instrument and inhibits any output activation for the period of time set in the parameter.
CCt Compressor ON time during fast freezing
: (0÷990min; res. 10 min) allows to set the length of the
continuous cycle. Can be used, for instance, when the room is filled with new products.
dAF Defrost delay after fast freezing
: (with tdF=0 or 1: 0÷120min; with tdF=2 or 3: 0
÷
120sec) time interval
between the end of the fast freezing and the following defrost related to it.
IdF Interval between defrost cycles
: (with tdF=0 or 1: 0÷120h; with tdF=2 or 3: 0
÷
120min) Determines the
time interval between the beginning of two defrost cycles.
dSd Start defrost delay
:(with tdF=0 or 1: 0÷59min; with tdF=2 or 3: 0
÷
59sec) This is useful when different
defrost start times are necessary to avoid overloading the plant.
MdF (Maximum) length for defrost
:(with tdF=0 or 1: 0÷120min; with tdF=2 or 3: 0
÷
120sec) When
EdF = 0
,
(not evaporator probe: timed defrost) it sets the defrost duration, when
EdF = 1
(defrost end based on
temperature) it sets the maximum length for defrost.
dtE Defrost termination temperature
: (-57
÷
99°C/-57
÷
196°F) (Enabled only when EdF=1) sets the
temperature measured by the evaporator probe, which causes the end of defrost.
dFd Temperature displayed during defrost
: (0 = real temperature; 1 = temperature at defrost start; 2 = set
point; 3 = “dEF” label)
dAd MAX display delay after defrost
: (0
÷
120 min). Sets the maximum time between the end of defrost and
the restarting of the real room temperature display.
tdF Defrost type
:
(0 = electrical heater, long time; 1 = hot gas, long time; 2=OFF compressor, short
time; 3= ON compressor, short time)
EdF Evaporator probe presence
: (0 = Not present: timed defrost end; 1=present: defrost end based on
temperature)
Fdt Drain time
: (with tdF=0 or 1: 0÷120min; with tdF=2 or 3: 0÷120sec) time interval between reaching
defrost termination temperature and the restoring of the control’s normal operation. This time allows the
evaporator to eliminate water drops that might have formed due to defrost.
dPO First defrost after startup
: (0 = Immediately; 1 = after the IdF time)
FnC Fan operating mode
: (0 = runs with the compressor, OFF during defrost; 1 = continuous mode, OFF
during defrost; 2 = runs with the compressor, ON during defrost; 3 = continuous mode, ON during
defrost; 4 = fan relay is used as 2° compressor output)
FSt Fan stop temperature
: (-57
÷
99°C/196°F) setting of temperature, detected by evaporator probe, above
which the fan is always OFF.
Fnd Fan delay after defrost:
(with tdF=0 or 1: 0÷120min; with tdF=2 or 3: 0
÷
120sec) The time interval
between end of defrost and evaporator fans start.
Ot Thermostat probe calibration
: (-12.0
÷
12.0°C; -120
÷
120°F) allows to adjust possible offset of the
thermostat probe.
OE Evaporator probe calibration
: (-12.0
÷
12.0°C; -120
÷
120°F) allows to adjust possible offsets of the
evaporator probe.
CF Temperature measurement unit
: 0 = Celsius; 1 = Fahrenheit.
WARNING: When the measurement unit is changed the SET point and the values of the parameters Hy,
LS, US, ALU, ALL, dtE, FSt, Ot and OE have to be modified
COn Compressor ON time with faulty probe
(0
÷
120 min) time during which the compressor is active in case
of faulty thermostat probe. With COn=0 compressor is always OFF.
COF Compressor OFF time with faulty probe
(0
÷
120 min) time during which the compressor is off in case
of faulty thermostat probe. With COF=0 compressor is always active.
952057-58
XR160C - XR170C - XR160D - XR170D - XR162C - XR172C
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