Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagram
- II. Sequence of Operation and Service Diagnosis
- III. Controls 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) (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. Pump-Out Pump Motor Direction (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
22
C. Freeze-Time Correction Cycle (90 min.)
Freeze-Time Correction function is enabled when S4 Dip Switch 7 is in the "ON"
position and initiates when the difference between the minimum and maximum recorded
freeze times is equal to or greater than 600sec. (10min. ). Freeze time is recorded and
freeze cycles are counted starting at the 2nd freeze cycle after startup from a power
off condition. After 6 recorded freeze cycles, CB starts comparing the minimum and
maximum differential of recorded freeze cycle times. Up to 10freeze cycles are recorded
and maintained in memory. At the 11th recorded freeze cycle, the rst recorded freeze
cycle time is dropped to maintain the maximum number of 10 recorded freeze cycles.
Freeze time recordings and freeze cycle counts are retained in memory during a BC off
cycle and resume on the 2nd freeze cycle after BC restart.
1) Initiation and CB Operation: When the differential between minimum and maximum
recorded freeze times exceeds 600 sec. (10min.), freeze-time correction cycle starts.
CB red "POWER OK" LED blinks. When freeze-time correction cycle occurs 3 or more
times within a 36 hour period, CB yellow "EXT HARVEST" LED blinks with CB red
"POWER OK" LED. Appliance starts in freeze cycle after a freeze-time correction cycle.
Toreset CB LEDs, press ALARM RESET button on CB with power on. CB resets LEDs
and appliance continues cycle without interruption.
2) Freeze-Time Correction Sequence:
First occurrence within 36 hr., minimum and maximum freeze times have exceeded
differential parameters. CB "POWER OK" LED starts blinking. Freeze-Time Correction
Cycle starts.
Second occurrence within 36 hr., minimum and maximum freeze times have exceeded
differential parameters. If not reset, CB "POWER OK" LED continues blinking. If reset
from rst occurrence, CB "POWER OK" LED starts blinking. Freeze-Time Correction
Cycle starts.
Third occurrence within 36 hr. minimum and maximum freeze times have exceeded
differential parameters. CB yellow "EXT HARVEST" LED starts blinking. Also, If not
reset, CB "POWER OK" LED continues blinking. If reset, CB "POWER OK" LED starts
blinking. Freeze-Time Correction Cycle starts.
Total freeze-time correction cycle last for 90min. At the end of 80min., the nal step
initiates and nal Harvest Pump Time (Harvest Assist) with WV (10-min.) starts. Once
the nal Harvest Pump Time (Harvest Assist) with WV (10-min.) terminates
(90 min. complete), normal freeze cycle begins.