Hoshizaki KMS-1401MLJ Pump-Out Timer S4 dip switch 3, Pump-Out Frequency Control S4 dip switch 5

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

The 1st pump-out occurs after the 11th freeze cycle, then every 10th cycle thereafter. When a pump-out is called for, the X10 relay is energized and the X13 relay is de‑energized to allow the drain valve to energize. The pump motor stops for 2 seconds, then the X11 relay energizes, allowing the pump motor and drain valve to energize. Water is removed from the bottom of the water tank and sent down the drain. At the same time, water flows through the small float switch tube to power flush the float switch.

The pump‑out drains the water tank for the time determined by the pump‑out timer. The pump‑out 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 Valve
No. 3	No. 4	T1	T2
OFF	OFF	10	150	closed
ON	OFF	10	180	closed
OFF	ON	10	120	open if refill = 0; closed if refill 1 or greater
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-adjusted 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 more frequent pump-out, the pump-out frequency can be adjusted as shown in the table below.

Timing of the first pump‑out is dependent on S4 dip switch 5 & 6 settings. 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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