Icematic M202 - Start-Up Procedures; Start-Up Cycle Overview; Freezing Cycle Operation

English
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SERVICE MODULARI06/2014
3. START-UP
3.1 STARTUP CYCLE
1. Open the water tap/valve and switch ON the power on the
e
lectrical supply line.
2. The models M202-302-402-502 enter in the Start Up mode
with the PC Board energized as well as the Green LED of the
machine under power while the models M 402-502 enter in
90 minutes delay time controlled by a special Start-up Delay
P
C Board.
The Green LED of machine in operation is energized too,
blinking fast for 40 seconds.
Note: The models M502 is equipped with a compressor
crankcase heater and a Start up Delay PC Board set up at 90 min-
utes. During the first 90 minutes only the compressor crankcase
heater is energized warning up the compressor.
3. During the Start Up cycle the components in operation are:
• Hot gas valve
• Water Drain Valve
• Water Pump
• Harvest assist solenoid (pusher).
3.2 FREEZING CYCLE
1. After the Start Up cycle the machine enters directly into the
Freezing cycle with the following components energized:
• Water Inlet valve
• Compressor
• Fan motor (in continuous operation for the first 3 minutes).
2. The LED energized are:
• Machine under power
• Machine in operation (steady)
3. Water is coming into the water through the Water Inlet So-
lenoid Valve till the water reservoir if filled up to the maxi-
m
um level controlled by a Water Level Sensor.
4. 30 seconds later, the Water Pump starts up.
5. After few minutes (3-5) from the start up of the freezing cycle,
the Water Inlet Solenoid Valve is activated again for few sec-
onds to re-fill the water reservoir up to the maximum level so
t
o reduce any possibility of slush ice formation.
6. In the meantime the condenser sensor starts to transmit the
current to the PC Board keeping in operation the Fan Motor
in ON-OFF mode or continuously according to the con-
denser temperature.
Note: Do not remove the evaporator deflector cover as it will
cause the switching off of the machine at "STORAGE BIN FULL".
7. The machine remains in the freezing cycle with the ice that
become thicker till the two metal plates of the Ice Thickness
Sensor are covered by the water cascading through the front
surface of the ice plate.
8. When the Power is transmitted back to the PC Board contin-
uously through the metal plates of the Ice Thickness Sensor
for more then 6", the machine enters in the Pre-Harvest or di-
rectly into the Harvest Cycle mode according to:
• FAN MOTOR IN ON-OFF MODE DURING THE PREVIOUS
FREEZING CYCLE
RISE UP THE CUT IN TEMPERATURE OF THE CONDENSER SEN-
SOR TO 38°C (FAN MOTOR OFF) AND EXTEND THE LENGTH
OF FREEZING CYCLE BY 30" MORE THEN GO INTO HARVEST
CYCLE
• FAN MOTOR ALWAYS IN OPERATION DURING THE PRE-
VIOUS FREEZING CYCLE
GO STRAIGHT TO THE HARVEST CYCLE
9. First freezing time will range between 13 and 17 minutes.
Longer time for temperature above 25°C and shorter time
required when temperature are below 25°C.
Average complete cycle time is about 15 min.
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Alimentazione
Electrical Power Supply
Funzionamento
Operation
Deposito Pieno/Lavaggio
Storage Full/Washing
Allarme
Alarm
Allarme Alta Pressione
High Pressure Alarm
Reset/Lavaggio
Reset/Washing
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