Sub-Zero UC-15IO manual Initial Start-Up or Start-Up After Automatic Shut-Off - Water Fill, Freeze

SUB- ZE RO ICE MACHINE O PE RAT IO N

SE QU EN CE O F OPE RATIO N

Depending on ambient conditions and cold water supply temperature, the ice making process will take approximately 30 minutes.

1)Initial Start-Up or Start-Up After Automatic Shut-Off — Water Fill

Before the compressor starts, the water inlet valve will purge old water from the system for about 3 minutes.

2)Refrigeration System Start-Up

The compressor starts after the Water Fill cycle and remains on throughout the Freeze and Harvest cycles. The condenser fan motor starts and runs throughout the Freeze cycle.

3)Freeze

The water pump sprays water into the inverted cups.

The water freezes layer by layer, until an ice cube forms in each cup. The control system will adjust the length of the Freeze cycle to conditions.

4)Harvest

The water pump shuts off and the water inlet valve starts up to assist harvest and refill the water sump.

The evaporator is warmed, allowing the cubes to release from the evaporator and drop into the storage bin. The control system will adjust the length of the Harvest cycle to conditions and regulate whether the condenser fan will run.

At the end of the Harvest cycle, the ice machine will start another Freeze cycle (Step 3).

5)Automatic Shut-Off

The level of ice in the storage bin controls the ice machine shut-off. When the bin is full, ice will contact the bin thermostat bulb holder.

The bin thermostat bulb cools, which stops the ice machine.

The ice machine remains off until ice no longer contacts the bin thermostat bulb holder and the thermostat bulb warms up. The increase in temperature will restart the ice machine (Step 1).

OPE RATI ONAL CH EC KS

Sub-Zero ice machines are factory-operated and adjusted before shipment. Normally, new installations do not require any adjustment.

To ensure proper operation, always follow the Operational Checks:

when starting the ice machine for the first time

after a prolonged out of service period

after cleaning and sanitizing

NOTE: Routine adjustments and maintenance procedures are not covered by the warranty.

WA TE R L EV EL

The ice machine maintains the correct water level. The water level is not adjustable.

BI N T HE RM OS TA T AD JU STM EN T

The bin thermostat stops the ice machine when the bin is full. Turn the thermostat to the left to decrease the level of ice in bin or to the right to increase the level of ice in bin.

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