[D] Controls And Adjustments - Hoshizaki KM-500MAF Service Manual

[d] CONTROLS AND ADJUSTMENTS

The Dip Switch is factory-adjusted to the following positions:
DIP SWITCH NO.
KM-500MAF
KM-500MWF
KM-500MRF
Switch Nos. 1 and 2:
Used for adjustment of the Defrost Timer.
The Defrost Timer starts counting when the Thermistor reads a certain temperature
at the Evaporator outlet.
Switch Nos. 3 and 4:
Used for adjustment of the Drain Timer.
When a freeze cycle is completed, the Pump Motor stops, and the icemaker
resumes operation in 2 seconds. Then the Pump Motor drains the Water Tank
for the time determined by the Drain Timer. The Drain Timer also determines the
time to restrain completion of a defrost cycle, i.e. the minimum defrost time.
Switch Nos. 5 and 6:
Used for adjustment of the Drain Counter.
The Pump Motor drains the Water Tank at the frequency determined by the Drain
Counter.
Switch Nos. 7 and 8:
Used only for checking the Controller Board. Usually set in OFF position.
1 2 3
OFF OFF OFF
OFF OFF OFF
OFF OFF OFF
4 5 6
OFF ON ON
OFF ON ON
OFF ON ON
Switch Nos. 9 and 10:
Used for adjustment of Freeze Timer.
The Freeze Timer determines maximum
freeze cycle time. Upon termination of
Freeze Timer, machine initiates the
harvest cycle. After 2 consecutive timer
terminations, machine will shut down,
possibly indicating a problem.
20
7 8 9
OFF OFF ON
OFF OFF OFF
OFF OFF OFF
10
OFF
OFF
OFF