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2. Harvest Time (S4 dip switch 1 & 2)
The harvest timer starts counting when the thermistor reaches 9°C at the evaporator
outlet and the control board reads 3.9 kΩ from the thermistor. 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 drain provided at harvest needs to be
prolonged for extra cleaning. Note that the pump-out timer (S4 dip switch 3 & 4) acts in
place of the harvest timer during cycles with a pump out. For details, see "III.C.3. Pump-
Out Timer (S4 dip switch 3 & 4)."
Note: On models with a pump-out every cycle, the harvest timer is only relevant during
the initial harvest cycle since a pump out occurs every cycle thereafter.
3. Pump-Out Time/Harvest Time During Pump-Out (S4 dip switch 3 & 4)
Do not adjust 3 off and 4 on. Pump motor does not run in pump-out rotation in this
setting.
When a pump-out is called for, the pump motor stops for 2 sec., then energizes in the
reverse direction, taking water from the bottom of the water tank and forcing pressure
against the check valve seat allowing water to go through the check valve and down
the drain. At the same time, water fl ows through the small tube to power fl ush the fl oat
switch. The pump motor drains the water tank for the time determined by the pump-out
timer. The pump-out timer also acts in place of the harvest timer during cycles with a
pump-out. The pump-out timer is factory set, and generally no adjustment is required.
However, where water quality is bad and the icemaker needs a longer pump-out time,
the pump-out timer can be adjusted. The pump-out time can be set to pump-out for 10 or
20 sec. During pump-out cycles minimum harvest time is based on times given in the
table below.
S4 Dip Switch Setting
No. 3
OFF
ON
OFF
ON
T1: Time to drain the water tank
T2: Harvest timer at pump out
S4 Dip Switch Setting
No. 1
No. 2
OFF
OFF
ON
OFF
OFF
ON
Time (sec.)
T1
No. 4
OFF
10
OFF
10
ON
10
ON
20
Time
(sec.)
S5-4 OFF
60
90
ON
120
ON
180
NOTICE
T2
S5-4 OFF S5-4 ON
150
100
180
130
120
70
180
180
32
S5-4 ON
30
45
60
75
Inlet Water
Valve
S5-4 OFF
S5-4 ON
Closed
Closed
Closed
Closed
Open
Closed
Closed
Closed
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