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2. Sequence Flow Chart

a) KM-1601SAH/3 "G" Control Board

F/S check
1 to 3-min. timer in control
(S4 dip switch 1 & 2)
"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
FM energized
HGV energized
Thermistor temperature
reaches 48°F (9°C)
(3.9 kΩ or less).
Harvest timer starts.
F/S open
Comp continues
FM continues
PM continues
LLV energized
HGV de-energized
F/S closed
Comp continues
FM continues
HGV energized
PM de-energizes for 2 sec.,
then reverses for 10/20 sec.
LLV de-energized
F/S check
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 terminates
0 or 50 sec.
PM energized
WV de-energized
Harvest Pump
Timer
KM-1601SAH/3
NOTE: Green "BC CLOSED" LED on continuously
when the K4 jumper is in place.

1. Bin Full

Within 10 sec. after ice contacts TBC
bulb, unit shuts down.

Shutdown

and Restart

TBC Operation
Ice contacts TBC bulb

2. Icemaker Off

All components de-energized.

3. Ice Level Lowered

No ice touching TBC bulb. Icemaker
starts at "1. 1-Minute Fill Cycle."
TBC closedTBC-open
All components de-energized
To 1 above
Legend:
Comp–compressor
FM–fan motor
F/S–oat switch
HGV–hot gas valve
LLV–liquid line valve
PM–pump motor
TBC–thermostatic bin control
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 ow over the outside of
the evaporator plate assembly. With the cleaning valve open, the cleaner and sanitizer ow 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.