Emerson Dixell XR70CHC User Manual

1592033070 XR70CHC EN r1.0 2019.01.30 XR70CHC 3/6
11.3.2 PROTECTED MENU
1. Select the parameter to modify
5. Press the SET key to display its current value
6. Use UP or DOWN to change its value
7. Press SET to store the new value and move to the following parameter
To exit: Press SET+UP or wait for 15 sec without pressing any button.
NOTE:
1. If there are no parameters into the User Level, after 3 sec the “nP” label will be displayed. Go to
submenu Pr2 and follow the previous procedure.
2. The modified value will be stored even if the programming mode ends by timeout.
3. Modify the par. PSU (when into Protected Level) to change the current password
11.3.3 MOVE PARAMETERS THROUGH LEVELS
Each parameter present into the Protected Level can be moved into the User Level by pressing both
SET+DOWN buttons. If a parameter is into the User Level, when visualized into the Protected Level it
will have also the decimal point.
11.4 KEYBOARD MANAGEMENT
11.4.1 TEMPORARY LOCK
1. Keep both UP and DOWN buttons pressed for more than 3 sec.
2. The “oFF” label will be displayed and the keyboard will be locked. If any button is pressed more
than 3 sec, the “oFF” message will be displayed.
11.4.2 TEMPORARY UNLOCK
Keep both UP and DOWN buttons pressed together for more than 3 sec till the “on” message will be
displayed.
11.4.3 ADVANCED LOCK FUNCTION
It is possible to selectively lock the keyboard by using the following parameters:
1. brd: select the kind of lock:
a. UnL: all buttons unlocked
b. SEL: buttons UP, DOWN and DEFROST are locked
c. ALL: all keyboard is locked
2. tLC: delay after power-on before activating the advanced lock function
NOTE: when advanced lock function is active, temporary lock and unlock functions are disabled.
11.5 THE ON/OFF FUNCTION
If onF = oFF, the instrument will be switched off by pushing the ON/OFF button. The
“OFF” message will appear on the display. In this configuration the regulation is
disabled. To switch the instrument on, push again the ON/OFF button.
WARNING: any load connected to the normally closed contacts of the relays is always supplied
from the main voltage, even if the instrument is in standby mode.
12 PARAMETERS
MENU LIST
rEG
Regulation: it includes all parameters related to main temperature regulation
Prb
Probe setup: it includes all parameters related to probe configuration
diS
Display: it includes all parameters related to the user interface
dEF
Defrost: it includes all parameters to control any defrost operation
FAn
Ventilators: it includes all parameters to control the ventilators
AUS
Auxiliary: it includes all parameters for auxiliary regulators
ALr
Alarms: it includes all parameters to set up the alarm conditions
oUt
Outputs: it includes all parameters to set up the digital outputs
inP
Inputs: it includes all parameters to set up the digital inputs
ES
Energy Saving: it includes all parameters to define the energy saving mode
Cnt
Counters: to see the counters values
rtC
Real Time Clock: it includes all parameters to set up the internal clock
bLE
Bluetooth: it includes all parameters to set up the Bluetooth communication
E2
EEPROM: it includes all parameters to set up the datalogger
oth
Other: it includes all parameters to set up the serial communication and the keyboard
viS
Visualization: it includes the read only parameters (probe values and FW info)
REGULATION - rEG
SEt
Regulation Set Point: range from LS to US
LS
Minimum Set Point: (-100.0°C to SET; -148°F to SET) sets the minimum value for the set
point.
US
Maximum Set Point: (SET to 200.0°C; SET to 392°F) set the maximum value for set point.
HY
Differential in normal mode: (0.1 to 25.0°C; 1 to 45°F) differential for set point. Compressor
Cut-IN is T > SET + HY. Compressor Cut-OUT is T<=SET.
HYE
Differential in energy saving mode: (0.1 to 25.0°C; 1 to 45°F) differential for set point.
Compressor Cut-IN is T > SET + HES + HYE. Compressor Cut-OUT is T<= SET + HES.
odS
Outputs delay activation after power on: (0 to 255 min) this function is enabled after the
power-on of the instrument and delays output activations.
AC
Anti-short cycle delay: (0 to 50 min) minimum interval between a compressor stop and the
following restart.
rtr
Percentage for regulation: 100=P1 only; 0=P2 only
CCt
Maximum duration for pull down: (0.0 to 23h50min, res. 10min) after elapsing this interval of
time the super cooling function is immediately stopped
CCS
Differential for pull down: (-12.0 to 12.0°C; -21 to 21°F) during any super cooling phase the
regulation SETPOINT is moved to SET+CCS (in normal mode) or to SET+HES+CCS (in
energy saving mode)
oHt
Overheating before activating the pull-down function (when in normal mode): (1.0 to
12.0°C; 1 to 21°F) this is the upper threshold limit used to activate the super cooling function.
oHE
Overheating before activating the pull-down function (when in energy saving mode): (1.0
to 12.0°C; 1 to 21°F) this is the upper threshold limit used to activate the super cooling
function.
Con
Compressor ON time with faulty probe: (0 to 255 min) time during which the compressor is
active in case of faulty thermostat probe. With CY=0 compressor is always OFF.
CoF
Compressor OFF time with faulty probe: (0 to 255 min) time during which the compressor is
OFF in case of faulty thermostat probe. With Cn=0 compressor is always active.
PROBE SETUP - Prb
PbC
Probe selection: ntC; PtC; Pt1000
ot
Probe P1 calibration: (-12.0 to 12.0°C; -21 to 21°F) allows to adjust any possible offset of the
first probe.
P2P
Evaporator probe presence: n = not present; Y = the defrost stops by temperature.
oE
Evaporator probe calibration: -12.0 to 12.0°C; -21 to 21°F) allows to adjust any possible
offset of the third probe.
P3P
Third probe presence: n = not present; Y = the defrost stops by temperature.
o3
Third probe calibration: -12.0 to 12.0°C; -21 to 21°F) allows to adjust any possible offset of
the third probe.
P4P
Fourth probe presence: n = not present; Y = the condenser temperature alarm is managed.
o4
Fourth probe calibration: (-12.0 to 12.0°C; -21 to 21°F) allows to adjust any possible offset of
the condenser probe.
DISPLAY - diS
iCo
Enabling icon visualisation: (n; Y) the icons can be hidden during normal functioning
CF
Temperature measurement unit: (°C; °F) °C = Celsius; °F = Fahrenheit.
rES
Resolution (only for °C): (dE; in) dE = decimal; in = integer.
Lod
Probe displayed: (P1; P2; P3; P4; SEt; dtr; USr) Px=probe “x”; SEt=set point; dtr=do not
use it; USr=do not use it.
dLY
Temperature visualization delay: (0.0 to 20min00sec, res. 10 sec) when the temperature
increases, the display is updated of 1°C or 1°F after this time.
dtr
Visualization percentage = F(P1;P2): (0 to 100) with dtr=1 the display will show this value
VALUE=0.01*P1+0.99*P2
DEFROST - dEF
EdF
Defrost mode: in=fixed intervals; rtC=following real time clock
tdF
Defrost type: EL=electrical heaters; in=hot gas; ALt=uses only for compressor stop defrost.
dFP
Probe selection for defrost control: nP=no probe; P1=thermostat probe; P2=evaporator
probe; P3=third probe (do not use it); P4=Probe on Hot Key plug.
dtE
Defrost termination temperature for defrost control: (-55 to 50°C; -67 to 122°F) it sets the
temperature measured by the evaporator probe (dFP), which causes the end of defrost.
idF
Interval between two consecutive defrost cycles: (0 to 255 hours) determines the time
interval between the beginnings of two defrosting cycles.
MdF
Maximum length for defrost: (0 to 255 min; 0 means no defrost) when P2P=n (no evaporator
probe presence) it sets the defrost duration, when P2P=Y (defrost end based on evaporator
temperature) it sets the maximum length for defrost.
dSd
Start defrost delay: (0 to 255 min) delay in defrost activation.
StC
Compressor stop time before starting any defrost: (0 to 900 sec) interval with compressor
stopped before activating hot gas cycle
dFd
Display during defrost: (rt; it; SP; dF) rt = real temperature; it = start defrost temperature;
SP = SET-POINT; dF = label “dF”.
dAd
Max delay for updating display after any defrost: (0 to 255 min) delay before updating the
temperature on the display after finishing any defrost.
Fdt
Draining time: (0 to 255 min)
Hon
Drain heater enabled after draining time (Fdt): (0 to 255 min) the relative output will stay on
after draining time.
dPo
First defrost after start-up: (n; Y) to enable defrost at power on.
Pd1
Differential during any pre-defrost phase: (-12.0 to 12.0°C; -21 to 21°F) the regulation Set
Point is changed to a temporary different value before any defrost
Pd2
Pre-defrost time: (0 to 120 min) interval with temporary Set Point before any defrost.
dAF
Defrost delay after freezing: (0.0 to 24h00min, res. 10 min) delay before activating a defrost.
od1
Automatic defrost (at the beginning of any energy saving mode): (n; Y) n=function
disabled; Y=function enabled
SYn
Tipe of synchronized defrost: (nu; rnd) nu=not used; rnd=random defrost
ndE
Number of devices connected to the virtual network for random defrost (valid if
Syd=rnd): (1 to 20) used to define how many devices will use the Random Defrost Function
FAN - FAn
FAP
Probe selection for evaporator fan management: nP=no probe; P1=thermostat probe;
P2=evaporator probe; P3=do not use it; P4=Probe on Hot Key plug.
FSt
Evaporator fan stop temperature: (-55 to 50°C; -67 to 122°F) setting of temperature,
detected by evaporator probe. Over this value of temperature fans are always OFF. NOTE: it
works only for the evaporator fan, NOT for the condenser fan.
HYF
Differential for evaporator fan: (0.1 to 25.5°C; 1 to 45°F) differential for evaporator ventilator
regulator
FnC
Evaporator fan mode operation: (Cn; on; CY; oY)
• Cn = runs with the compressor, duty-cycle when compressor is OFF (see FoF, Fon,
FF1 and Fo1 parameters) and OFF during defrost
• on = continuous mode, OFF during defrost
• CY = runs with the compressor, duty-cycle when compressor is OFF (see FoF, Fon,
FF1 and Fo1 parameters) and ON during defrost
• oY = continuous mode, ON during defrost
Fnd
Fan delay after defrost: (0 to 255 min) delay before fan activation after any defrosts.
FCt
Differential of temperature for forced activation of fans
Fon
Fan on time when the compressor is off: (0 to 255 min) used when energy saving status is
not active.
FoF
Fan off time when the compressor is off: (0 to 255 min) used when energy saving status is
not active.
Fo1
Fan on time with compressor off in Energy Saving mode: (0 to 255 min) used when energy
saving status is active.
FF1
Fan off time with compressor off in Energy Saving mode: (0 to 255 min) used when energy
saving status is active.
FAC
Probe selection for condenser fan management: nP=no probe; P1=probe Pb1; P2=probe
Pb2; P3=probe Pb3; P4=probe Pb4 on Hot Key plug.
St2
Condenser fan stop temperature: (-55 to 50°C; -67 to 122°F) setting of temperature,
detected by evaporator probe. Over this value of temperature fans are always OFF.
HY2
Differential for condenser fan: (0.1 to 25.5°C; 1 to 45°F) differential for evaporator ventilator
regulator
FCC
Condenser fan mode operation: (Cn; on; CY; oY)
• Cn = runs with the compressor and OFF during defrost
• on = continuous mode, OFF during defrost
• CY = runs with the compressor and ON during defrost
• oY = continuous mode, ON during defrost

Emerson Dixell XR70CHC Specifications

General

Brand	Emerson
Model	Dixell XR70CHC
Category	Controller
Language	English