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
15
3. Freeze-Time Correction Chart
Legend:
Comp–compressor
FM–fan motor
FMR–fan motor-remote
HGV–hot gas valve
PM–pump motor
WV–inlet water valve
2A8242-01 Freeze-Time Correction Flow Chart
1. 10-Minute Harvest Cycle with WV
• Do not adjust S4 dip switch 7 out of the factory position.
• After step 2 completes 4th sequence (80 min. completed), repeat
step 1 for 5th and nal time.
Cycle Steps
Steps 1 and 2 repeat
4 times (total 80 min.),
then step 1 repeats for
a 5th time to complete
Freeze-Time Correction
Cycle.
2. 10-Minute Fill/
Overow
Comp energized
FMR energized
HGV energized
PM energized
WV energized
WV energized
Comp de-energized
FMR de-energized
HGV de-energized
PM de-energized
Start
After 5th 10-Minute Harvest Pump Cycle with WV
Freeze-Time Correction Cycle Complete.
Go to Step "3. Freeze Cycle" in Operation Flow Chart.
Freeze Time Differential Exceeded.
Minimum and Maximum Recorded Freeze
times have exceeded 600 sec. (10 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 600 sec.
(10min.).
Freeze time is recorded and freeze cycles
are counted starting at the 2nd freeze cycle
after startup from a power off condition.
After 6recorded freeze cycles, CB starts
comparing the minimum and maximum
differential ofrecorded freeze cycle times.
Up to 10 freeze 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.
Note: When 1st freeze-time correction cycle
is initiated, CB "POWER OK" LED starts
blinking. On 2nd freeze-time correction cycle,
if CB "POWER OK" LED has been reset,
CB "POWER OK" LED starts blinking. If CB
"POWER OK" had not been reset after 1st
freeze-time correction cycle CB "POWER
OK" LED continues to blink.
After 3rd freeze-time correction cycle in
36hours, CB yellow "EXT HARVEST" LED
starts blinking.
Appliance continues to operate and LEDs
continue to blink until ALARM RESET button
is pressed with power on.
Appliance Cycle Reset and Alarm Reset:
Cycle Reset: Power Supply or Control Switch Turned Off and On again:
Appliance turns off, then re-starts at 1.Fill Cycle.
Alarm Reset: CB "ALARM RESET" pressed during or after a freeze-time
correction cycle with power supply on:
Appliance continues cycle with no interruption or reset.
CB red "POWER OK" LED blinking:
CB red "POWER OK" LED resets to solid.
CB yellow "EXT HARVEST" LED blinking:
CB yellow "EXT HARVEST: LED turns off.