Hoshizaki KM-1301SAH-E Pump-Out Timer S4 dip switch 3, Pump-Out Frequency Control S4 dip switch 5

Models: KM-1301SRH-E KM-1301SWH-E KM-1301SAH-E

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c) Pump-Out Timer (S4 dip switch 3 & 4)

CAUTION

Do not adjust S4 dip switch 3 off and S4 dip switch 4 on for this model. Otherwise, pump motor does not rotate in the pump-out direction.

When a pump-out is called for, the pump motor stops after the preceding freeze cycle. The pump motor restarts 2 seconds later in the reverse direction, 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 flows through the small tube to power flush the float switch. The pump motor drains the water tank for the time determined by the pumpout timer. The pumpout timer also acts in place of the harvest timer during cycles with a pump-out. The pump-out timer is factory set, and generally no adjustment is required. The pump-out timer control can be set to pump-out for 10 or 20 seconds.

S4 Dip Switch Setting

Time (seconds)

Inlet

Water

 

 

 

 

No. 3

No. 4

T1

T2

Valve

 

 

 

 

 

OFF

OFF

10

150

closed

 

 

 

 

 

ON

OFF

10

180

closed

 

 

 

 

 

OFF

ON

10

120

open

 

 

 

 

 

ON

ON

20

180

closed

 

 

 

 

 

T1: Time to drain the water tank

T2: Harvest timer at pump-out

d)Pump-Out Frequency Control (S4 dip switch 5 & 6)

The pump-out frequency control is factory set to drain the water tank every 10 cycles, 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 can be set to have a pump-out occur every cycle, or every 2, 5, or 10 cycles.

Timing of the first pumpout is dependent on S4 dip switch 5 & 6 settings. The first pumpout is factory set to occur after the 11th freeze cycle. See the table below.

S4 Dip Switch Setting

Pump-Out

1st Pump-Out

No. 5

No. 6

Frequency

 

 

 

 

 

OFF

OFF

Every cycle

After 2nd freeze cycle

 

 

 

 

ON

OFF

Every 2 cycles

After 3rd freeze cycle

 

 

 

 

OFF

ON

Every 5 cycles

After 6th freeze cycle

ON

ON

Every 10 cycles

After 11th freeze cycle

 

 

 

 

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Hoshizaki KM-1301SAH-E Pump-Out Timer S4 dip switch 3, Pump-Out Frequency Control S4 dip switch 5, Time seconds Inlet