Scotsman AC-EC 57 Service Manual page 36

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F. 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)
FREEZING CYCLE
TOO HI COND TEMP
TOO HI EVAP TEMP
BIN FULL
POWER
• Push more then 20" to restore remind cleaning
timer.
G. 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
RED ALARM LED ON
Too hi condensing temperature
RED ALARM LED BLINKING
Too hi evaporating temperature
YELLOW FREEZING CYCLE ON
Unit in freezing cycle mode
YELLOW FREEZING LED AND RED ALARM
LED ON
Condenser sensor out of order
YELLOW FREEZING LED AND RED ALARM
LED BLINKING
Evaporator sensor out of order
PUSH
PUSH
BUTTON
BUTTON
H.
The P.C.BOARD which controls the entire
operation of the ice maker, has a DIP SWITCH
with ten switching keys which allow to set up
the micro processor program in order to extend or
to shorten the length of freezing cycle in relation to
the different model and versions of ice machines.
The DIP SWITCH first four keys setting
determines the length of the 2nd phase of
freezing cycle (controlled by the electronic
timer) as detailed in the table B.
The DIP SWITCH keys 5 & 6 setting determines
the length of the defrost cycle according to the
LED STATUS
ON STEADY UNIT UNDER POWER
ON STEADY FREEZING CYCLE
60 MINUTES DELAY AT START UP
BLINKING
JUMPER J3 OUT
TOO HI DISCHARGE
ON STEADY
PRESSURE/TEMP
TOO HI EVAP. TEMP. (> 0C°)
BLINKING
AFTER 15' FROM START UP
ON STEADY UNIT OFF AT BIN FULL
BLINKING
I/R BEAM CUTTED
SLOW
I/R ON AFTER TRIP OFF AT
BLINKING
BIN FULL
FAST
ON STEADY I/R CALIBRATION DONE
UNIT IN CLEANING MODE OR TRIPPING
BLINKING
OFF AFTER TEST - JUMPER TEST IN
CONDENSER SENSOR OUT
ON STEADY
OF ORDER
EVAPORATOR SENSOR OUT
BLINKING
OF ORDER
BLINKING
I/R SENSOR OUT OF ORDER
ALTERNATIVELY
PUSH > 5" DURING WATER FILLING TO
MOVE THE UNIT INTO FREEZING
PUSH > 5" DURING FREEZING
TO MOVE THE UNIT INTO DEFROST
PUSH > 5" DURING DEFROST
PUSH
TO MOVE THE UNIT INTO FREEZING
PUSH 2" > 5" DURING WATER FILLING
TO MOVE THE UNIT INTO CLEANING
PUSH DURING THE 60 MIN START UP
DELAY TIME TO BY-PASS IT
DIP SWITCH
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REASON WHY