Hoshizaki KM-280MAF-E Service Manual page 33

4) Drain Counter
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:
Dip Switch
No. 5
OFF
ON
OFF
ON
5) Freeze Timer
Adjust to proper specification, or the unit may not operate correctly.
Two new dip switches numbered 9 and 10 have been added to the improved "E" board
to better prevent possible freeze ups. These settings come factory set to the default
setting of 60 min. (OFF, OFF). Check the adjustment chart published in the Tech Specs
for proper settings. If the old board does not have these two dip switches, (only 8 in-
stead of 10), leave setting as OFF, OFF.
Dip Switch
No. 9
ON
ON
OFF
OFF
CAUTION
SETTING
Dip Switch
No. 6
OFF
OFF
ON
ON
CAUTION
SETTING
Dip Switch
No. 10
ON
OFF
ON
OFF
FREQUENCY
every cycle
every 2 cycles
every 5 cycles
every 10 cycles
TIME
75 min.
70 min.
50 min.
60 min.
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