ICE MACHINE TEMPERATURE CONTROLLER Model ICE V4
ATTENTION
Read carefully these instructions before installing and using this device and keep them for future reference. Attention to installation and electrical wiring. Use this
device only as described in this document and never use itself as a security device. The device must be disposed of in accordance with local standards for the collection
of electrical and electronic equipment.
DESCRIPTION
ICE is an ideal thermostat for sprinkling ice machine. It has three NTC/PTC sensors: one is for the evaporator temperature, the second is for the ice storage in order to terminate
the production when the storage is full and the third is for controlling the condenser's fan. It has 3 indication digits of temperature display with an accuracy of 0.5°C and 4
buttons. Four relays (for compressor 30Α, water pump 5Α, and defrost 10Α, condenser's fan 5A) with NO contact, three adjustable timers in minutes for the control of the
compressor/water pump and defrost relays, electrical or HOT-GAS defrost mode, wash operation, OFF mode of the device and an alarm buzzer for high or low temperature.
The device is mounted on a panel hole 29x71mm and it is restrained with plastic side brackets. Through the serial input it can be connected to a Cloud IoT network on the
CORTEX platform for complete local recording and monitoring of the device.
INDICATIONS AND BUTTONS FUNCTION
For more indications regarding the alarms please see the alarm's table at page 3.
DEVICE OPERATION WITH ELECTRIC DEFROST
During start-up, the defrost relay
turn on. If the evaporator temperature is lower than the set point after the defrost, all operations and relays will be deactivated automatically and the screen will
display the indication "ΕΕΕ". The alarm is automatically deactivated after the restart of the device using the ON/OFF button or by toggling the power supply. Manual defrost
duration is based on timer t2 and does not end based on the defrost end temperature – parameter dE5.
When timer t2 elapses, the defrost relay is deactivated
shows the current evaporator temperature and the indications
while the compressor and water pump relay remain activated until timer t1 elapses. The display shows time duration of timer t1, which counts backwards, while the indications
,
and
light up. When timer t1 elapses, the compressor and water pump relays are deactivated, and afterwards the cycle starts again with the activation of defrost
relay, etc.
If a malfunction occurs in the cooling circuit and the evaporator temperature does not decrease, the aforesaid process will end based on timer t3. All functions and relays
will be deactivated automatically and alarm "FFF" will be displayed. The alarm is automatically OFF by restarting the thermostat from the power supply or the ON / OFF
button.
When the ice storage temperature sensor reaches the SP2, the production will stop when the last production of ice drops on the storage and the cycle ends. On screen the
indication "FUL" is displayed until the storage temperature reaches SP2+dF2 and the cycle resumes.
When the condenser's sensor reaches the SP3, the relay is OFF and the condenser's symbol switches OFF on the display. Once the condenser's temperature reaches
SP3-dF3 the relay is ON again.
The aforesaid cycle repeats continuously without interruption during the smooth operation of the thermostat. Only during the first defrost, if the evaporator's temperature
reaches defrost end temperature (parameter dE5), then the compressor is deactivated while the defrost relay remains activated till ti2 timer elapses.
In case of evaporator's temperature sensor failure LF1 or OFF device state, all thermostat functions are deactivated.
In case of storage temperature sensor failure LF2, the cycle continues and does not stop because of this failure.
In case of condenser's temperature sensor failure LF3, the relay is permanently ON, the frosting cycle continues and does not stop because of this failure.
HOT-GAS OPERATION
Parameter dt6 set the defrost function in electric or HOT-GAS mode. Only in hot-gas defrost mode (dt6 = 1), the compressor relay works in parallel with the defrost relay, for
time t2.
Display indications
compressor ΟΝ
defrost ON
water pump ΟΝ
fan condenser ON
timer ΟΝ
evaporator temperature
Τ1
ice
storage
Τ2
condenser temperature
Τ3
is activated and timer t2 starts counting. The screen displays t2 time duration, which counts backwards, while the indications
and timer t3 starts counting while the compressor
T2
,
temperature
and
light up. When the evaporator temperature reaches the set point, timer t1 begins counting,
Keyboard
enter/exit the parameter's menu
display the parameter's value
enter parameter's value
manual defrost
up arrow
toggles display between evaporator temperature
and evaporator condenser
Τ1
down arrow
mute buzzer
ON/OFF device (check below)
display ice
storage
temperature
and water pump
relays are activated. The display
Firmware V4.0.3
Τ2
Τ3
and
1
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