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d) Pump-Out Cycle
LEDs 1, 3, and 2 are on. Comp and FMRs remain energized, HGVs and X10 relay
energize. LLVs de-energize. PM stops for 2 seconds, then X11 relay energizes, allowing
PM and DV to energize for 10 or 20 seconds (S4 dip switch 3 & 4). Water is removed
from the bottom of the water tank and sent down the drain. At the same time, water ows
through the small F/S tube to power ush F/S. When the pump-out timer terminates,
pump-out is complete.
The 1st pump-out occurs after the 11th freeze cycle, then every 10th cycle thereafter.
The pump-out frequency control is factory set, and generally no adjustment is required.
However, where water quality is bad and the icemaker needs a pump-out more often,
the pump-out frequency can be adjusted. The pump-out frequency control (S4dip
switch5&6) can be set to have a pump-out occur every cycle, or every 2, 5, or
10cycles. Timing of the rst pump-out is dependent on S4dip switch 5 & 6 settings. See
the table below.
S4 Dip Switch Setting
Pump-Out
Frequency
1st Pump-Out
No. 5 No. 6
OFF OFF Every cycle After 2nd freeze cycle
ON OFF Every 2 cycles After 3rd freeze cycle
OFF ON Every 5 cycles After 6th freeze cycle
ON ON Every 10 cycles After 11th freeze cycle
e) Harvest Cycle
LEDs 1, 4, and 2 are on. Same as the initial harvest cycle. See "II.B.1.b) Initial Harvest
Cycle."
Note: Icemaker continues to cycle until BC is satised or power is turned off. The
icemaker always restarts at the 1-minute ll cycle.
f) Shutdown
When BC is activated (BC open), the yellow "BC OPEN" LED comes on. The icemaker
then shuts down as outlined in the table below.
Cycle at Bin
Control Activation
Shutdown
Fill Cycle 15 seconds after activation.
Harvest Cycle At the end of the harvest cycle, or up to 15 seconds into the freeze cycle if activated
at the end of the harvest cycle.
Freeze Cycle 15 seconds after activation if activated at least 15 seconds before the 5-minute short
cycle protection timer terminates. Otherwise, at the end of the next harvest cycle.
Legend: CB–control board; Comp–compressor; DV–drain valve; FMRs –fan
motors-remote; F/S–oat switch; HGVs–hot gas valves; LLVs–liquid line
valves; PM–pump motor; WV1–ll/rell water valve; WV2–harvest water valve