39
2. Harvest Timer (S4 dip switch 1 & 2)
The harvest timer starts counting when the thermistor reaches 48°F (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. 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 (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.
S4 Dip Switch Setting
Time
(sec.)
No. 1
No. 2
OFF
OFF
60
ON
OFF
90
OFF
ON
120
ON
ON
180
3. Pump-Out Timer/Harvest Time During Pump-Out (S4 dip switch 3 & 4)
NOTICE
• Do not adjust 3 off and 4 on. Drain valve does not energize in this setting.
When a pump-out is called for, the pump motor stops for 2 sec. After 2 sec. the drain
valve and pump motor energize. Water is removed from the bottom of the water tank
and sent down the drain. The pump-out 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 timer control can be
set to pump-out for 10 or 20 sec.
S4 Dip Switch Setting
Time (sec.)
Inlet Water
Valve
No. 3
No. 4
T1
T2
S5-4 OFF S5-4 ON
S5-4 OFF
S5-4 ON
OFF
OFF
10
150
100
Closed
Closed
ON
OFF
10
180
130
Closed
Closed
OFF
ON
10
120
70
Open
Closed
ON
ON
20
180
180
Closed
Closed
T1: Time to drain the water tank
T2: Harvest timer at pump out
