Hoshizaki KM-1301SAH/3 Manuel D’Utilisation

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2. Sequence Flow Chart
•  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: 
0 min. 
F/S
 check
1 to 3-min. timer
 in control 
(S4 dip switch
 1 & 
)
Legend:
 
BC
–bin control
Comp
–compressor
FM
–fan motor
FMR
–fan motor-remote
F/S
–float switch
HGV
–hot gas valve
LLV
–liquid line valve
PM
–pump motor
WV
–inlet water valve
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. With the cleaning valve closed, the cleaner and sanitizer flow over the outside of the evaporator plate 
assembly. With the cleaning valve open, the cleaner and sanitizer flow over both the outside and the inside of the evaporator plate 
assembly. 
Note: Close the cleaning valve after cleaning and sanitizing are complete, otherwise the unit will not restart when the control 
 
          switch is placed in the "ICE" position.
"G" Control Board Sequence Flow Chart
1. 1-Minute  
 
   
 Fill Cycle
Cycle Steps
2. Harvest Cycle
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 
 
sec., then 
reverses for 10/
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 
 sec.,
       then reverses for 10/
0 sec. 
  
FM
 de-energized
LLV 
de-energized
F/S
 check
Initial startup 
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 expires
NOTE: 
Green "BC CLOSED" LED on continuously 
 
            when the K4 jumper is in place.
0 or 50 sec.
PM 
energized
WV
 de-energized
Harvest Pump 
Timer
1. Bin Full
   
Within 10 sec.    
  
    
    after ice contacts 
 
    thermostatic bulb, 
 
    unit shuts down.
Shutdown 
and Restart
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
 closed
BC
-open
All components 
de-energized
To 1 above
KM-1301SAH/3, KM-1301SWH/3, and KM-1301SRH/3