The ON/OFF Function
Parameters • 9
CF
Temperature measurement unit
(°C; °F)
°C
= Celsius;
°F
= Fahrenheit.
CAUTION:
When the measurement unit is changed the SET
point and the values of the parameters
HY
,
LS
,
US
,
ot
,
ALU
and
ALL
have to be checked and modified (if necessary).
rES
Resolution (for °C)
(in=1°C; dE=0.1°C) Allows decimal point display.
Lod
Instrument display
(P1; P2, P3, P4, SET, dtr) Selects which probe is displayed by
the instrument.
P1
= Thermostat probe;
P2
= Evaporator probe;
P3
= Third probe (only for model with this option enabled);
P4
= Fourth probe,
SET
= setpoint;
dtr
= percentage of
visualization.
rEd
X-REP display (optional)
(P1; P2, P3, P4, SET, dtr) Selects which probe is displayed by
X- REP.
P1
= Thermostat probe;
P2
= Evaporator probe;
P3
=
Third probe (only for model with this option enabled);
P4
=
Fourth probe,
SET
= setpoint;
dtr
= percentage of visualization.
dLY
Display delay
(0 to 20min00s; res. 10s) When the temperature increases, the
display is updated of 1°C or 1°F after this time.
dtr
Percentage of the second and first
probe for visualization when Lod=dtr
(0 to 99; 100=P1, 0=P2) If
Lod=dtr
, it allows to set the
visualization according to the percentage of the first and second
probe, as for the following formula (
dtr
(P1-P2)/100 + P2).
DEFROST
tdF
Defrost type
(EL; in)
EL
= electrical heater;
in
= hot gas
dFP
Probe selection for defrost termination
(nP; P1; P2; P3; P4)
nP
= no probe;
P1
=thermostat probe;
P2
=
evaporator probe;
P3
=configurable probe;
P4
= Probe on Hot
Key plug
dtE
Defrost termination temperature
(-50 to 50°C; -58 to 122°F) (enabled only when
EdF=Pb
) Sets
the temperature measured by the evaporator probe, which
causes the end of defrost.
idF
Interval between defrost cycles
(0 to 120hours) Determines the interval of time between two
defrost cycles.
MdF
(Maximum) length for defrost
(0 to 255min) When
P2P=n
, (not evaporator probe: timed
defrost) it sets the defrost duration. When
P2P=Y
(defrost end
based on temperature) it sets the maximum length for defrost.
dSd
Start defrost delay
(0 to 99min) This is useful when different defrost start times are
necessary to avoid overloading the plant.
dFd
Temperature displayed during defrost
(rt; it; SEt; dEF)
rt
= real temperature;
it
= temperature at defrost
start;
SEt
= setpoint;
dEF
= “
dEF
” label.
dAd
MAX display delay after defrost
(0 to 255min) Sets the maximum time between the end of
defrost and the restarting of the real room temperature display.
Fdt
Drip time
(0 to 120min) 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 start-up
(n; Y)
n
= after the
idF
time,
Y
= immediately
dAF
Defrost delay after continuous cycle
(0.0 to 24h00min, res. 10min) Time interval between the end of
the fast freezing cycle and the following defrost related to it.
FANS
Code
Parameter
Function
Table 7-1 - List of Parameters
Содержание Dixell XR75CX Series
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