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2. Features
a) Low Water Safety
When the inlet water valve opens during fill and refill, a 90-second low water safety
timer starts. Once the upper float switch closes the 90-second low water safety timer
terminates. If the upper float switch remains open longer than 90 seconds, a 1-beep
alarm sounds. The water valve and 1-beep alarm continue until the upper float switch
closes.
b) Ice Purge Cycle Bypass
To speed up the diagnostic process, the 5-minute ice purge cycle may be bypassed
by pressing the "SERVICE" button on the control board after the gear motor starts.
WARNING! Risk of electric shock. Care should be taken not to touch live
terminals.
c) Freeze Timer
A 30-minute freeze timer starts once the upper float switch closes. Should the upper
float switch fail to close again before the 30-minute timer terminates, the control board
shuts down the icemaker and sounds a 5-beep alarm every 5 seconds. Also, when the
lower float switch is open and the upper float switch is closed, the control board sounds
a 5-beep alarm every 5 seconds. Both alarms require a manual reset. For further details,
see "II.C.3.d) Feeze Timer (5-beep alarm)."
d) Drain Frequency
(1) 1-in-1 Drain Cycle
: The 1-hour drain timer terminates, then the drain valve energizes
for 2 seconds. This occurs once every hour when the 1-in-1 drain cycle is activated
(S1 dip switch 4 in the "OFF" position (factory default)). This setting is recommended
for optimum icemaker performance. The 1-in-1 drain cycle allows for maximum
drainage of any sediment from the evaporator without interrupting the icemaking
process.
(2) 1-in-12 Drain Cycle (optional):
The 12-hour drain timer terminates, then the
icemaker cycles down and the drain valve energizes for 10 minutes. This occurs once
every 12 hours when the 1-in-12 drain cycle is activated (S1 dip switch 4 in the "ON"
position (optional)). For further details, see "II.B.1.d) Drain Cycle."
e) Bin Control Shutdown Delay
(1) Infrared Sensor:
The ice level at shutoff may need to be adjusted depending on the
dispenser agitation or dispense method. For a typical dispenser unit application, a
100-second shutdown delay is recommended. Increasing the shutdown delay setting
allows for a higher level of ice in the bin before the icemaker shuts down. When used
with a standard Hoshizaki storage bin, any shutdown delay setting is acceptable. For
further details, see "II.C.4.b) Infrared Sensor Shutdown Delay (S1 dip switch 1, 2, and
3)."
(2) Mechanical Bin Control:
The control board shuts down the entire unit within
10 seconds when the mechanical bin control proximity switch opens (actuator paddle
engaged). For further details, see "II.C.4.f) Mechanical Bin Control Shutdown Delay
(S1 dip switch 8)."
