Hoshizaki KM-100A Service Manual page 18

Control Board P00013-02
h) Refill Counter (S2 dip switch 2, 3, & 4) [Program Ver. 2.5 or earlier]
Do not adjust. These must be left in the factory default position or the unit will not
operate properly. The KM-100A and KM-125A do not refill.
i) Anti-Slush Control (S2 dip switch 5 & 6) [Program Ver. 2.5 or earlier]
Do not adjust. These must be left in the factory default position or the unit will not
operate properly.
The anti-slush control (Ver. 1.0, Ver. 2.0) helps prevent slushing during the freeze cycle
on small icemakers.
It is deactivated on the KM-100A and KM-125A.
When activated (Ver. 1.0), the thermistor located on the suction line checks for a 34°F
(1°C) temperature as the evaporator cools. When 34°F (1°C) is reached, a 5.9 kΩ signal
causes the control board to de-energize the pump motor for 10 seconds.
When activated (Ver. 2.0), the thermistor located on the suction line checks for a 50°F
(10°C) temperature as the evaporator cools. When 50°F (10°C) is reached, a 3.9 kΩ
signal causes the control board to de-energize the pump motor for 10 seconds and
energize it for 50 seconds repeatedly. When 34°F (1°C) is reached, a 5.9 kΩ signal
causes the control board to de-energize the pump motor for 10 seconds, energize it for
50 seconds, de-energize it again for 10 seconds, then energize it continuously.
S2 Dip Switch Setting
No. 5 No. 6
OFF OFF
ON OFF
OFF ON
ON ON
Control Board P01771-02
j) Harvest Promotion Control (S2 dip switch 2) [Program Ver. 3.1, Ver. 3.2]
Do not adjust. This must be left in the factory default position or the unit will not operate
properly.
When activated, this control promotes harvest of ice on the evaporator that is hard to
remove. If the harvest cycle exceeds 6 minutes, the pump motor starts to operate for a
maximum of 3 minutes.
S2 Dip Switch Setting
No. 2
OFF
ON
Anti-Slush Control
Activated (Ver. 1.0)
Activated (Ver. 2.0)
Deactivated
Deactivated
Harvest Promotion
Control
Activated
Deactivated
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