Filter
Top Products
33
b) Harvest Timer (S4 dip switch 1 & 2)
The harvest timer starts when the thermistor reads 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 ush 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 "II.C.3.c) Pump-Out Timer (S4 dip switch
3 & 4)."
S4 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 (S4 dip switch 3 & 4)
CAUTION
Do not adjust S4 dip switch 3 off and S4 dip switch 4 on for KM-1601SAH/3.
Otherwise, pump motor does not rotate in the pump-out direction.
When a pump-out is called for, the pump motor stops after the preceding freeze cycle.
The pump motor restarts 2 seconds later in the reverse direction, taking water from the
bottom of the water tank and forcing pressure against the pump-out check valve seat
allowing water to go through the pump-out check valve and down the drain. At the same
time, water ows through the small tube to power ush the 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. The pump-out timer control can
be set to pump-out for 10 or 20 seconds.
S4 Dip Switch Setting Time (seconds)
Inlet
Water
Valve
No. 3 No. 4
T1
T2
OFF OFF 10 150 closed
ON OFF 10 180 closed
OFF ON 10 120 open
ON ON 20 180 closed
T1: Time to drain the water tank
T2: Harvest timer at pump-out