Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagrams
- II. Sequence of Operation and Service Diagnosis
- III. Settings and Adjustments
- A. Control Board Layout
- B. LED Lights and Audible Alarm Safeties
- C. Settings and Adjustments
- 1. Default Dip Switch Settings
- 2. Harvest Time (S4 dip switch 1 & 2)
- 3. Pump-Out Time/Harvest Time During Pump-Out (S4 dip switch 3 & 4)
- 4. Pump-Out Frequency Control (S4 dip switch 5)
- 5. Harvest Pump Time (Harvest Assist Duration) (S4 dip switch 6)
- 6. Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (S4 dip switch 7)
- 7. Factory Use (S4 dip switch 8)
- 8. Freeze Timer (S4 dip switch 9 & 10)
- 9. Float Switch Control Selector (S5 dip switch 1)
- 10. Refill Counter (S5 dip switch 2 and 3)
- 11. Minimum Harvest Time (S5 dip switch 4)
- 12. Anti-Slush (S5 dip switch 5)
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
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6. Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (S4 dip switch 7)
NOTICE
Factory set for proper operation. Do not adjust. Adjustment outside of the factory
default setting may result in damage to the appliance.
a) Depending on the harvest pump timer setting, the pump motor either stays off or is
energized the last 50 seconds of harvest. When the pump motor is energized, water
circulates over the evaporator. The harvest water valve (WV2) and X12 relay are
energized during harvest for a maximum of 6 minutes or the length of harvest minus
0 or 50 seconds (determined by the harvest pump timer setting), whichever is shorter.
When S4 dip switch 7 is in the on position and harvest begins, X10 relay energizes and
allows the harvest water valve (WV2), X12, and X13 relays to energize. A lockout circuit is
created using the X10, X12, and X13 relays. This prevents the drain valve from energizing
during harvest pump timer. See "VIII.B. Wiring Diagram."
50 seconds before harvest termination, LED 4 goes off de-energizing WV2 (harvest
water valve) and X12 relay. X13 relay remains energized through the holding circuit
through X10 and X13 relays. Next, LED 3 on the control board turns on and X11relay
energizes, allowing the pump motor to energize. The pump motor is energized the last
50seconds of harvest.
b) Freeze-Time Correction
When S4 dip switch 7 is in the on position, freeze-time correction enabled.
See "II.C. Freeze-Time Correction Cycle (90 min.)."
S4 Dip Switch Setting Harvest Pump
Time (sec.)
(Harvest Assist)
Freeze-Time
Correction
No. 7
OFF 0 Disabled
ON 50 Enabled
7. Factory Use (S4 dip switch 8)
Factory set for proper operation. Do not adjust. This must be left in the factory default
position.