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Page 9
After having correctly installed the ice dispenser
and completed the plumbing and electrical
connections, perform the following Start-Up
pro cedure
START UP
A. Open the water supply shutoff valve and
give power by the ON/OFF push button, the
machine enters in the starting delay time with
Gear Reducer always in operation and two com-
plete purge and refill of the water reservoir, dØ1
(purge time) and dØ2 (refill time) code monitor
this condition on display.
NOTE: Every time the unit is put under power,
after being kept for some time in shut-off
conditions (electrically disconnected) the
delay starting period will be 15 minutes.
The machine will run an auto calibration of
ice level control showingFØ2 code for few
seconds. Every restart from other operating
conditions with the unit electrically connected
it will take only 3 minutes of delay
B. Elapsed the starting delay time, the unit
starts operating (FØ4 code appears on display
for few seconds) with the activation in sequence
of the following components:
COMPRESSOR
FAN MOTOR Kept under control by the
condenser temperature sensor which has its
probe within the condenser fins.
The Bin Empty light is ON during all start up/delay
time and for the first minutes of operation.
NOTE ONLY FOR AUTHORIZED TECHNICIAN
To by-pass the start-up delay perform the
following procedure:
• During the delay time press and hold for 5
seconds both ICE and WATER capacitive
keys simultaneously then release.
• As soon as "tSt" will appear on display keep
pressed the same capacitive keys until the
units starts the operation.
C. Five minutes after the compressor start up,
the ice begins dropping down in the storage bin,
ice can be dispensed as soon as the Bin Empty
light disappear.
D. The unit will stop the operation when the
storage bin is full of ice and the infrared beam of
the ice level control is interrupted for 10 seconds
continuously.
E. Every 12 hours of operation the units will
make an automatic purge and refill of the water
reservoir and freezer to prevent the growth of
bacteria and algae when machine is not working
for many hours (Night-time and/or Bin full
condition).
OPERATING INSTRUCTIONS
OPERATION CHECKS UPON THE UNIT
START UP
F.
install the refrigerant service gauges on the
corresponding Service valves to check both the
HI and LO refrigerant pressures.
G. Check for the correct CUT-OUT and
CUT-IN of the float reservoir water level sen-
sors by shutoff the valve on the water supply line.
This will cause a gradual decrease of the water
level in the float reservoir and as soon as the level
gets below the sensors, the unit stops to operate
and the ALARM CODE AØ1 will glow on display.
After this, open the water supply line shutoff
valve to fill up again the float reservoir.
Remove service panels and if necessary
NOTE. The condenser temperature sensor,
which is located within the condenser fins,
keeps the head (condensing) pressure
between two preset values.
In case of condenser clogging such to prevent
the proper flow of the cooling air or, in case
t he fan motor is out of operation, the condenser
temperature rises and when it reaches 70
°
(160
F) the condenser temperature sensor
shuts-off the ice maker with the consequent
light-up of ALARM CODE AØ8. After having
diagnosed the reason of the temperature rise
and removed its cause, it is necessary to
proceed as per the previous "NOTE" to start
up again the operation of the ice maker.
NOTE. If, after ten minutes from the
compressor start-up, the evaporating tem-
perature has not dropped down to a value
°
°
lower than -0
C (30
F) the evaporating tem-
perature sensor detects such an abnormal
situation and stops consequently the unit
operation.
In this circustance, the ALARM CODE AØ6.
After having diagnosed and eliminated the
cause of the poor evaporating temperature
(insufficient refrigerant in the system or
inoperative compressor or evaporator sensor)
it is necessary to restart the unit. The unit,
before resuming the total operation, will go
through the usual STAND-BY period.
NOTE. The water level sensor detects the
presence of sufficient water in the float reservoir
and confirms it to the micro processor by
maintaining a low voltage current flow between
the two sensors using the wate r as conductor.
WARNING. The use of de-mineralized
water (water with no salt content) having
an electrical conductivity lower than 30
µS, will cause the ability of the water
sensors to vanish with the consequent
CUT-OUT of the flaker operations and the
glowing of the ALARM CODE AØ1 of
shortage of water, even though that water
is indeed in the reservoir.
Page 9
°
C
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