Hoshizaki KM-1301SAH/3 User Manual download pdf (Page 19)

de-energize. For the rst 5 minutes, CB will not accept a signal from F/S. This minimum

5-minute freeze time is short cycle protection for Comp. At the end of 5 minutes, F/S

assumes control. As ice builds on the evaporator, the water level in the tank lowers. The

freeze cycle continues until F/S opens and terminates the cycle. There is a 15 second

delay before CB acknowledges an open F/S.

d) Pump-Out Cycle

LEDs 1, 3, and  are on. LED 4 is on when S4 dip switch 3 & 4 are set to 3 off and 4 on.

CAUTION! Do not adjust S4 dip switch 3 & 4 to 3 off and 4 on. Adjustment to this

position on this model prevents the unit from operating correctly and may cause

damage. For details, see "II.C.3.c) Pump-Out Timer (S4 dip switch 3 & 4)." Comp and

FMR remain energized, HGV energizes, WV energizes if S4 dip switch 3 off and 4 on.

LLV and FM de-energize. PM stops for  seconds then reverses, taking water from the

bottom of the tank and forcing pressure against the check valve seat allowing water to

go through the check valve and down the drain. At the same time, water ows through

the small tube to power ush F/S. When the pump-out timer expires, the pump-out is

complete.

The rst pump-out occurs after the 11th freeze cycle, then every 10th cycle thereafter.

The pump-out frequency control is factory set, and generally no adjustment is required.

However, where water quality is bad and the icemaker needs a pump-out more often, the

pump-out frequency can be adjusted. The pump-out frequency control (S4 dip switch 5 &

6) can be set to have a pump-out occur every cycle, or every , 5, or 10 cycles. Timing of

the rst pump-out is dependent on S4 dip switch 5 & 6 settings. See the table below. For

details, see "II.C.3.d) Pump-Out Frequency Control (S4 dip switch 5 & 6)."

S4 Dip Switch Setting

Pump-Out

Frequency

1st Pump-Out

No. 5 No. 6

OFF OFF Every cycle After nd freeze cycle

ON OFF Every  cycles After 3rd freeze cycle

OFF ON Every 5 cycles After 6th freeze cycle

ON ON Every 10 cycles After 11th freeze cycle

e) Harvest Cycle

Same as the initial harvest cycle. See "II.B.1.b) Initial Harvest Cycle."

Note: Unit continues to cycle until BC is satised or power is turned off. The unit always

restarts at the 1-minute ll cycle.

f) Shutdown

When ice contacts the thermostatic bulb (BC switch open), BC shuts down the unit within

10 seconds. The bin control is factory set, and generally no adjustment is required.

However, adjustment may be needed in some conditions, particularly at higher altitude

locations.

Legend: BC–bin control; CB–control board; Comp–compressor; FMR–fan motor-remote;

FM–fan motor; F/S–oat switch; HGV–hot gas valve; LLV–liquid line valve;

PM–pump motor; WV–inlet water valve

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Hoshizaki KM-1301SAH/3 User Manual Page 19

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