Hoshizaki KM-250BWF - Manual (Page 17)

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3) Drain Timer
The drain timer is factory-adjusted, and no adjustment is required.
SETTING TIME
Dip Switch Dip Switch
No. 3 No. 4 T1 T2
OFF OFF 10 seconds 150 seconds
ON OFF 10 seconds 180 seconds
OFF ON 10 seconds 120 seconds
ON ON 20 seconds 180 seconds
T1: Time to drain the water tank
T2: Time to restrain defrost completion
4) Drain Counter
CAUTION
Do not adjust the drain counter, or the evaporator may freeze up.
The drain counter is factory-adjusted to drain the water tank every 10 cycles, and no
adjustment is required. However, where water quality is bad and the icemaker needs a
pump drain more often, the drain counter can be adjusted as shown in the table below:
SETTING FREQUENCY
Dip Switch Dip Switch
No. 5 No. 6
OFF OFF every cycle
ON OFF every 2 cycles
OFF ON every 5 cycles
ON ON every 10 cycles