Emerson XR75CX User Manual

The ON/OFF Function Parameters • 9
DISPLAY
CF Temperature measurement unit °C = Celsius
°F = Fahrenheit
(CAUTION! When the measurement unit is changed, the setpoint and the values of the
parameters Hy, LS, US, ot, ALU and ALL have to be checked and modified if neces-
sary).
rES Resolution (for °C) (in = 1°C; dE = 0.1°C)
Allows decimal point display.
Lod Device display (P1; P2, P3, P4, SEt, dtr)
Selects which probe is displayed by the device:
P1 = Thermostat probe
P2 = Evaporator probe;
P3 = Third probe (only for models 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 20.0 min; resul. 10 seconds)
When the temperature increases, the display is updated of 1°C/1°F after this time.
dtr Percentage of the second and
first probe for visualization
when Lod = dtr (0 to 100; 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
EdF Defrost mode (only for control-
ler with RTC)
rtC = Real Time Clock mode. Defrost time follows Ld1 to Ld6 parameters on work-
days and Sd1 to Sd6 on holidays. in = interval mode. The defrost starts when the time
Idf is expired.
tdF Defrost type EL = electrical heater
in = hot gas
dFP Probe selection for defrost ter-
mination
nP = no probe
P1 = thermostat probe
P2 = evaporator probe
P3 = configurable probe
P4 = probe on Hot Key plug
dtE Defrost termination tempera-
ture
(-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 120 hr)
Determines the time interval between the beginning of two defrost cycles.
MdF (Maximum) length for defrost (0 to 255 min)
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 99 min)
This is useful when different defrost start times are necessary to avoid overloading the
plant.
Code Parameter Function
Table 7-1 - List of Parameters

Emerson XR75CX Specifications

General

Brand	Emerson
Model	XR75CX
Category	Controller
Language	English