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B. CONDENSER TEMPERATURE SENSOR
The condenser temperature sensor probe,
located within the condenser fins (air cooled
version) or in contact with the tube coil (water
cooled version) detects the condenser tempera-
ture variations and signals them by supplying
current, at low voltage, to the P.C. BOARD.
In the air cooled versions, in relation to the different
current received, the micro processor of the P.C.
BOARD supplies, through a TRIAC, the power at
high voltage to the fan motor so to cool the
condenser and to reduce its temperature. In case
the condenser temperature rises and reaches
70°C (1 60°F) - on air cooled models - or 62°C
(145°F) - on water cooled models - the current
arriving to the micro processor is such to cause an
immediate and total stop of the machine operation.
C. ICE BIN LEVEL LIGHT CONTROL
The electronic ice bin level control, located
into the storage bin, has the function to stop
the operation of the ice machine ONLY AT
THE END OF THE HARVEST CYCLE when
the light beam is interrupted by the ice cubes
stored into the bin.
When the light beam is interrupted the Bin Full
YELLOW LED starts blinking
.
SETTING OF THE ICE LEVEL CONTROL SENSIVITY
In case of any need it's possible to up to date the
sensivity of the optical ice level control as per
here below procedure:
a) Switch OFF the machine at Master Switch
b)Push and hold the PC Board Push Button
c) Switch ON the machine at Master Switch
d) Keep pushed the PC Board Push Button
till the Leds of the PC Board are ON
e) Release the PC Board Push Button.
NOTE. The setting of the Ice Level Control
Sensivity must be done any time a new PC
Board or a new lce Level Control is installed
in the machine.
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 fuse 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.).
SYEN
CONDENSER
SENSOR
EVAPORATOR
SENSOR
PUSH BUTTON
0¡C-BLINKING
-13¡C-STEADY
TERMINAL
BOARD
FUSE
COMPRESSOR
RELAY
TRIAC
TRANSFORMER
VARISTOR
WATER PUMP
RELAY
HOT GAS, WATER INLET AND
PURGE VALVES RELAY
ALARM
BIN FULL
POWER
EVAPORATOR SENSOR
CONDENSER SENSOR
OPTICAL ICE LEVEL
CONTROL SENSOR
WATER LEVEL SENSOR
EC SERIES ONLY
EXTERNAL
SWICHES
SOCKET
COMPRESSOR
ELECTRICAL
CONNECTIONS
WATER DRAIN PUMP RELAY
EC SERIES ONLY
JUMP OUT - EC SERIES
JUMP IN Ð AC SERIES
WATER SYSTEM
CLEANING REMIND
JUMP OUT - 12 MONTHS
JUMP IN Ð NO REMIND
START UPDELAY TIME
JUMP OUT Ð 60Õ DELAY
JUMP IN - NO DELAY
TEST
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