Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (S4 Dip Switch 7); Factory Use (S4 Dip Switch 8) - Hoshizaki Serenity SRK-12J Service Manual

6. Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (S4 dip switch 7)

Factory set for proper operation. Do not adjust. Adjustment outside of the factory
default setting may result in damage to the appliance.
a) Harvest Pump Time (Harvest Assist)
Depending on S4 dip switch 7 setting, the pump motor either stays off or is energized
during the last seconds of the harvest cycle. When the pump motor is energized (S4 dip
switch 7 on), water circulates over the evaporator. The harvest water valve is open during
harvest for a maximum of 6 minutes or the length of harvest minus the harvest pump
time value(S4 dip switch 6), whichever is shorter.
When S4 dip switch 7 is in the on position and harvest begins, X11 and X10 relays
energize. A latching circuit is created through the X11 and X10 relays. For further details,
see "VIII.B. Wiring Diagrams." In the factory default position, 50 sec. before harvest
termination, LED 4 turns off, inlet water valve and X11 relay de-energize. X10 relay
remains energized through the latching circuit. Next, LED 3 turns on and control board
K1 connector pin #5 (DBU wire) energizes, energizing the pump motor through contacts
on the energized X10 relay (#5 and #3) for the last seconds of harvest. Harvest pump
time adjusted by S4 dip switch 1 & 2 and S5 dip switch 4 settings. Contact Technical
Support before adjusted these settings.
b) Freeze-Time Correction (CB: 2A7664-02)
When S4 dip switch 7 is in the on position, freeze-time correction enabled.
See "II.C. Freeze-Time Correction Cycle (90 min.) (CB: 2A7664-02)."
S4 Dip Switch Setting Harvest Pump Time

7. Factory Use (S4 dip switch 8)

Factory set for proper operation. Do not adjust. This must be left in the factory default
position.
NOTICE
(Harvest Assist)
No. 7
OFF
ON
41
Freeze-Time Correction
(CB: 2A7664-02)
Disabled
Enabled