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2. Infrared Sensor Shutdown Delay
This is the delay between the infrared sensor detecting ice and the start of the shutdown
sequence. The infrared sensor shutdown delay is factory-adjusted to 100 seconds and
no adjustment is required for most dispenser unit/ice storage bin applications.
a) Standard Ice Storage Bin
When installed on a standard ice storage bin, any shutdown delay setting is acceptable.
b) Dispenser Unit
For typical dispenser unit applications, a 100-second shutdown delay is recommended.
However, on some dispenser unit applications, the ice level at shutoff may need to be
adjusted depending on the dispenser agitation or dispense method. Should a different
shutdown delay be desired, adjust S1 dip switch 1, 2, 3 to obtain the shutdown delay
needed. See the table below. For further details, contact Hoshizaki Technical Support at
1-800-233-1940.
Note: When the shutdown sequence begins, the pump-down solenoid valve
de-energizes immediately to allow the low-side pressure to drop and open the
control low-pressure switch in the remote condensing unit. 5 minutes later the
gear motor de-energizes.
WARNING
Increasing the shutdown delay allows a higher level of ice in the dispenser unit/
ice storage bin before shutdown. This could lead to icemaker movement or ice
overow.
S1 Dip Switch
Shutdown Delay
NO. 1 NO. 2 NO. 3
OFF OFF OFF
0 seconds
ON OFF OFF
100 seconds (1.6 minutes)
OFF ON OFF
1100 seconds (18.3 minutes)
OFF OFF ON
1650 seconds (27.5 minutes)
ON ON OFF
2200 seconds (36.7 minutes)
OFF ON ON
0 seconds
ON ON ON
0 seconds
I. Operation Notes
The appliance utilizes a pump-down solenoid valve in the icemaker and a control
low-pressure switch in the remote condensing unit to control operation of the magnetic
contactor in the remote condensing unit. This eliminates the need for an electrical
connection between the icemaker and remote condensing unit.
Control Low-Pressure Switch Settings:
Cut-Out: 9 PSIG. Differential: 20 PSIG. Cut-In: 29 PSIG.
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