20
b) Harvest Timer (S1 dip switch 1 & 2)
The harvest timer starts when the thermistor reaches 48°F (9°C) at the evaporator
outlet and the control board reads the thermistor's 3.9 kΩ signal. 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 flush provided at harvest needs to be
prolonged for extra cleaning. Before changing this setting, contact Hoshizaki Technical
Support at 1-800-233-1940 for recommendations. Keep in mind that setting the harvest
timer to a longer setting decreases 24-hour production.
Note that the pump-out timer (S1 dip switch 3 & 4) acts in place of the harvest timer
during cycles with a pump-out. For details, see "II.C.3.c) Pump-Out Timer (S1 dip switch
3 & 4)."
S1 Dip Switch Setting
Time
(seconds)
No. 1
No. 2
OFF
OFF
60
ON
OFF
90
OFF
ON
120
ON
ON
180
c) Pump-Out Timer (S1 dip switch 3 & 4)
When a pump-out is called for, the pump motor de-energizes after the preceding freeze
cycle. 2 seconds later, the pump motor and drain valve energize. The pump motor
takes water from the tank and forces it through the drain valve and down the drain. 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, if
the default is 10 seconds and the icemaker needs a longer pump-out due to local water
conditions, the pump-out timer can be adjusted to 20 seconds.
S1 Dip Switch Setting Time (seconds)
No. 3
No. 4
T1
T2
OFF
OFF
10
120
ON
OFF
10
180
OFF
ON
20
120
ON
ON
20
180
T1: Time to drain the water tank
T2: Harvest timer at pump-out
