Hoshizaki KM-1300SAH-E, KM-1300SRH-E installation manual Operation, BIN Control Check

ENGLISH

6)Check the water supply and drain connections for water leaks.

7)Turn off the power supply, and remove the Front Panel.

8)Remove the Insulation Panel. Remove the Cap located on the front bottom part of the Ice Dropping Hole. Drain the Water Tank to flush any loose debris. See Fig. 12.

BIN CONTROL CHECK

1)With the Front Panel in place, remove the thumb- screws along the upper edge of the storage bin ice deflector and allow it to pivot on the side fixings.

2)Hold some ice against the Bin Control Bulb. The icemaker should stop within 6 to 10 seconds.

3)Replace the thumbscrews and close the bin door.

4)Check that the icemaker re-starts.

Fig. 12

9)Replace the Cap, Insulation Panel and Front Panel in their correct positions.

10)Clean the Storage Bin.

11)Turn on the power supply, and start the automatic icemaking process.

12)Wait until a complete icemaking and defrost cycle is completed.

10. OPERATION

The steps in the sequence are as follows:

1) 1 Minute Fill Cycle

The unit always starts in the 1 minute fill cycle. When power is applied to the unit, the water valve is ener- gized and the fill period begins. After 1 minute the board checks for a closed float switch. If the float switch is closed the harvest cycle begins. If not, the unit will not start without adequate water in the sump. This serves a low water safety shut off. The water valve will remain energized through additional 1 minute cycles until water enters the sump and the float switch closes.

2) 1st Harvest Cycle

The compressor starts, hot gas valve opens, water valve remains open and harvest begins. As the evaporator warms, the thermistor located on the suction line checks for a 9°C temperature. When 9°C is reached, the harvest is turned over to the adjust- able control board defrost timer which is factory set for normal conditions. This adjustment can vary the defrost timer from 1 to 3 minutes.

3) Freeze Cycle

After the timer terminates the harvest cycle, the hot gas and water valves close, and the ice production cycle starts. For the first 5 minutes the controller board will not accept a signal from the float switch. This 5 minute minimum freeze acts as a short cycle protection. At the end of 5 minutes the float switch assumes control. As ice builds on the evaporator the water level in the sump lowers. The freeze continues until the float switch opens and terminates ice pro- duction.

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