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3. Controls and Adjustments
CAUTION
Dip switches are factory set. Failure to maintain factory settings may adversely
affect performance and warranty coverage. For more information, contact
Hoshizaki Technical Support at -800-33-940.
a) Default Dip Switch Settings
The dip switches are factory set to the following positions:
S4 Dip Switch
S4 Dip Switch No. 1 2 3 4 5 6 7 8 9 10
KM-90MAH
ON OFF ON OFF ON ON OFF OFF OFF ON
KM-90MWH
ON OFF ON OFF ON ON OFF OFF OFF ON
KM-90MRH/3
ON OFF ON OFF ON ON OFF OFF OFF ON
S5 Dip Switch
("G" Control Board: Auxiliary Code U-1 and Later)
S5 Dip Switch No. 1 2 3 4 5
KM-90MAH
OFF OFF OFF OFF OFF
KM-90MWH
OFF OFF OFF OFF OFF
KM-90MRH/3
OFF OFF OFF OFF OFF
Freeze Timer (9 & 0)
Pump-Out Frequency Control (5 & 6)
Pump-Out Timer (3 & 4)
Harvest Timer ( & )
Factory Use (8)
b) Harvest Timer (S4 dip switch 1 & 2)
The harvest timer when the thermistor reads 48°F (9°C) at the evaporator outlet and the
control board reads the thermistor's 3.9 kΩ signal. The harvest timer is factory set, and
generally no adjustment is required. However, a setting longer than the factory setting
may be advised in cases where the ush provided at harvest needs to be prolonged
for extra cleaning. Before changing this setting, contact Hoshizaki Technical Support at
-800-33-940 for recommendations. Keep in mind that setting the harvest timer to a
longer setting decreases 4-hour production.
Note that the pump-out timer (S dip switch 3 & 4) acts in place of the harvest timer
during cycles with a pump-out. For details, see "II.C.3.c) Pump-Out Timer (S dip
switch 3 & 4)."
S4 Dip Switch Setting
Time
(seconds)
No. 1 No. 2
OFF OFF 60
ON OFF 90
OFF ON 0
ON ON 80
Bin Control Selector (7) "E" Control Board
Harvest Pump Timer (7) "G" Control Board
(Do Not Adjust)