1
ICE MACHINE TEMPERATURE CONTROLLER Model ICE V3
ATTENTION
Firmware V3
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 two NTC/PTC sensors: one is for the evaporator temperature and the other is for the ice bucket in order to terminate
the production when the bucket is full. It has 3 indication digits of temperature display with an accuracy of 0.5°C and 4 buttons. Three relays (for compressor 30Α, water pump
10Α, and defrost 10Α) 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, OFF mode for 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.
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
is activated and timer t2 starts counting. The screen displays t2 time duration, which counts backwards, while the indications
and
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
and timer t3 starts counting while the compressor
and water pump
relays are activated. The display
shows the current evaporator temperature and the indications
,
T2
and
light up. When the evaporator temperature reaches the set point, timer
t1
begins counting,
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 bucket temperature sensor reaches the SP2, the production will stop when the last production of ice drops on the bucket and the cycle ends. On screen the
indication “
FUL
” is displayed until the bucket temperature reaches SP2+dF2 and the cycle resumes.
The aforesaid cycle repeats continuously without interruption during the smooth operation of the thermostat.
In case
of evaporator’s temperature sensor failure
or OFF device state
, all thermostat functions are deactivated.
In case
of bucket temperature sensor failure
, the cycle continues and does not stop because of this failure.
HOT-GAS OPERATION
Parameter
do
set the defrost function in electric or HOT-GAS mode. Only in hot-gas defrost mode (do = 1), the compressor relay works in parallel with the defrost relay, for
time t2.
1.
Press
and parameter
SP2
is displayed.
2.
Press
and its value is displayed while the arrows
change its value.
3.
Press
to store the new value. Now the device is operating with the new value.
By pressing at the same time
and
, the device switches ON/OFF.
INDICATIONS AND BUTTONS FUNCTION
Display indications
compressor ΟΝ
water pump ΟΝ
defrost ON
dFr
manual defrost ΟΝ
timer ΟΝ
Τ2
evaporator temperature
ΤS
ice bucket temperature
alarm ΟΝ
malfunction ON
Keyboard
enter/exit the parameter’s menu
display the parameter’s value
enter parameter’s value
manual defrost
up arrow
display evaporator temperature
down arrow
mute buzzer
ON/OFF device (check below)
display ice bucket temperature
ADJUSTING THE ICE BUCKET SET POINT
SWITCHING ON / OFF THE DEVICE