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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.).
At restart, from any tripping OFF at Bin Full, the
new PC Board assures 45 seconds water filling
phase so to refill the water sump up to the maximum
level.
In case of malfunction of the Optical Ice Level
Control, thenew PC Board switch ON alternativelt
the Yellow and Red Led continuously.
On the PC Board there are four jumpers to select:
• 6 or 12 months remind time for the water system
cleaning
• Operation of the Purge Out Water Pump (Jump
IN on EC series)
• 3 or 60 minutes delay time at first start up
(3 minutes in all new AC Series)
• TEST
In case the TEST contacts are closed with the
Jumper, at the Start Up of the machine the PC
Board energizes all the electrical components for
maximum 3 minutes time.
At the end of the 3 minutes the PC Board switch
OFF the entire machine with the blinking of all
the LED's as shown on the bottom drawing.
6-12
MONTHS
EC SERIES
0 OR 60 MINUTES
DELAY
TEST
ON STEADY
BLINKING
