Hoshizaki KM-1301SWH-E Ice Maker User Manual


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17
2. Sequence Flow Chart
F/S check
1 to 3-min. timer in control
(S4 dip switch 1 & 2)
Components Energized when the Control Switch is in the "WASH" Position
The"WASH"positiononthecontrolswitchisusedwhencleaningandsanitizingtheunit.Wheninthe"WASH"position,poweris
supplied to the pump motor. This allows cleaner and sanitizer to ow over the outside of the evaporator plate assembly.
"G" Control Board Sequence Flow Chart
1. 1-Minute Fill
Cycle
Cycle Steps
2. Harvest Cycle
•WVtime:6min.orthelengthofharvestminus0or
50 sec. (S4 dip switch 7), whichever is shorter. DO
NOT ADJUST S4 dip switch 7 on this model.
•Maximumharvesttime:20min.
Thermistor
in control
3. Freeze Cycle
•Minimumfreezetime:5min.
•Maximumfreezetime:freezetimersetting
(S4 dip switch 9 & 10)
F/S in control
4. Pump-Out Cycle
•Factorysetforevery
10th cycle (S4 dip
switch 5 & 6)
•Pumpmotorstopsfor
2 sec., then reverses
for 10/20 sec. (S4 dip
switch 3 & 4)
WV energized
F/S open
WV continues
Comp energized
FMR energized
HGV energized
Thermistor temperature
reaches 48°F (9°C)
(3.9 kΩ or less).
Harvest timer starts.
F/S open
Comp continues
FMR continues
PM continues
FMS energized
LLV energized
HGV de-energized
F/S closed
Comp continues
FMR continues
HGV energized
PM de-energizes for 2 sec.,
then reverses for 10/20 sec.
FM de-energized
LLV de-energized
F/S check
Sartup begins
here after 5-sec.
delay
If F/S is open, compressor stops and cycle returns to 1-Minute Fill Cycle
5-min. timer in
control
F/S closed
F/S open or freeze
timer terminates
0 or 50 sec.
PM energized
WV de-energized
Harvest Pump
Timer
KM-1301SAH-E, KM-1301SWH-E, KM-1301SRH-E
NOTE: Green"BCCLOSED"LEDoncontinuously
when the K4 jumper is in place.
1. Bin Full
Within 10 sec. after ice contacts
thermostatic bulb, unit shuts down.
Thermostatic BC
Shutdown and Restart
(KM-1301SAH-E)
Thermostatic BC Operation
Ice contacts thermostatic bulb
2. Icemaker Off
All components de-energized.
3. Ice Level Lowered
No ice touching thermostatic bulb.
Icemakerstartsat"1.1-MinuteFillCycle."
BC closedBC-open
All components de-energized
To 1 above
Legend:
BC–bin control
Comp–compressor
FM–fan motor
FMR–fan motor-remote
F/S–oat switch
HGV–hot gas valve
LLV–liquid line valve
PM–pump motor
WV–inlet water valve
1. Bin Full
Shutdown Delay:
•Fill Cycle – 15 sec. after activation.
•Harvest Cycle – At the end of the harvest cycle, or up to 15 sec. into the
freeze cycle if activated at the end of the harvest cycle.
•Freeze Cycle – 15 sec. after activation if activated at least 15 sec. before
the 5-min. short cycle protection timer terminates.
Otherwise, at the end of the next harvest cycle.
Mechanical BC
Shutdown andRestart
(KM-1301SWH-E, KM-1301SRH-E)
Mechanical BC Operation
BC open
Green"BCCLOSED"LEDoff
Yellow"BCOPEN"LEDon
Yellow"BCOPEN"LEDcontinues.
All components de-energized
2. Icemaker Off
All components
de-energized.
3. Ice Level Lowered
Ice level lowered. No ice
pressing against BC actuator
paddle. Icemaker starts at
"1.1-MinuteFillCycle."
To 1 above
BC closed
Green"BCCLOSED"LEDon
Yellow"BCOPEN"LEDoff
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