Page 32
Page 32
E.
PUSH BUTTON OPERATION
DURING WATER FILLING PHASE
• Push for more then 2” but less then 5” the
machine enters in Cleaning Mode
• Push for more then 5” the machine by-pass
the Water Filling Phase
DURING FREEZING/HARVEST CYCLE
• Push for more then 5” during the Freezing
cycle the machine goes immediately into Harvest
• Push for more then 5” during the Harvest cycle
the machine enters immediately in the Freezing
cycle
The length of Harvest is equal to:
• 35” if Push Button is activated before -15
°
C
evaporating temperature LED activation
• As per Harvest cycle chart, if Push Button
is activated after -15
°
C evaporating
temperature LED activation (Red LED inside
PC Board ON steady)
The 60 seconds of delay prevent that an ice
scoop movement or the ice dropping through the
ice chute (interrupting for a while the light beam)
can stop the operation of the unit.
Six seconds after the scoop out of the ice (with
the resumption of the light beam between the two
infrared sensor of ice level control) the ice machine
restarts again with the extinguishing of the
YELLOW LED.
D.
P.C. BOARD (Data processor)
The P.C. BOARD, fitted in its plastic box located
in the front of the unit, consists of two separated
printed circuits one at high and the other at low
voltage integrated with two fuses one on power
in (32mA) and one on power out (6.3 A), of four
aligned LEDS monitoring the operation of the
machine, of one extra monitoring RED LED
(blink 0
°
C - steady - 15
°
C), of one DIP SWITCH
with ten keys, of one push button, of input
terminals for the leads of the sensor probes and
input and output terminals for the leads of the ice
maker electrical wires.
The P.C. BOARD is the brain of the system and
it elaborates, through its micro processor, the
signals received from the three sensors in order
to control the operation of the different electrical
components of the ice maker (compressor, water
pump, solenoid valves, etc.).
F.
LED MEANING
GREEN LED ON
Unit under power
YELLOW BIN FULL LED ON
Unit shut-OFF at storage bin full
YELLOW BIN FULL LED BLINKING
Infrared beam break out
TERMINAL
BOARD
TERMINAL
BOARD
CONDENSER
CONDENSER
SENSOR SOCKET
OPTICAL ICE LEVEL
CONTROLSENSOR
SOCKET
OPTICAL ICE LEVEL
CONTROLSENSOR
SOCKET
EPROM
MICROPROCESSOR
EPROM
TRANSFORMER
TRANSFORMER
VARISTOR
VARISTOR
RELAY
COMPRESSOR
RELAY
WATER PUMP
RELAY
WATER PUMP
RELAY
VALVES RELAY
HOT GAS, WATER
INLET AND PURGE
VALVES RELAY
EVAPORATOR
SENSOR SOCKET
TRIAC
TRIAC
RESET PUSH BUTTON
POWER
POWER
BIN FULL
BIN FULL
ALARM
ALARM
FREEZING
FUSE
FUSE
FUSE
FUSE
0
°
C-BLINKING
-13
°
C-STEADY
I/R ADJUSTER
RESISTANCE
RESISTANCE
FREEZING CYCLE
BIN FULL
POWER
TOO HI EVAP TEMP
TOO HI COND TEMP
PUSH
BUTTON
PUSH
BUTTON