5)Freeze Cycle – LED 1 is on. Comp and FMR remain energized, PM energizes or remains energized depending on harvest pump timer (S4 dip switch 7) setting. FM and LLV energize. HGV, and X1 relay (auxiliary code T‑0, U-0), X10 relay (auxiliary code U‑1 and later) de‑energize. The unit is held in freeze by a 5-minute short cycle protection timer (CB will not accept a signal from F/S). After the 5-minute short cycle protection timer expires, CB turns freeze termination over to F/S. During the first 5 minutes of freeze, confirm that the evaporator temperature drops. After
5 minutes in freeze, disconnect black F/S connector from CB BLACK K5 connector. After a 15 second delay, the unit should switch out of the freeze cycle. Diagnosis: If the evaporator is not cold, check to see if HGV is still open or if TXV is not opening properly, if WV is continuing to fill the reservoir, if there are improper unit pressures, an inoperative Comp, or an inoperative HM. If the unit switches out of freeze with F/S connector removed, but would previously not switch out of freeze with F/S connected (long freeze - 3 beep alarm), F/S may be sticking. To check and clean F/S, see "IV. D. Float Switch Check and Cleaning." If the unit remains in freeze longer than 15 seconds after disconnecting black F/S connector, replace CB. See "V.P. Removal and Replacement of Control Board."
Note: Normal freeze cycle will last 20 to 40 minutes depending on model and conditions. Cycle times and pressures should follow performance data provided in this manual. See "III.C. Performance Data."
6)
PM stops for 2 seconds, then reverses for 10/20 seconds depending on pump‑out timer S4 dip switch 3 & 4 setting. When the pump‑out timer expires, the
Timing of the first
S4 Dip Switch Setting | 1st | |||
No. 5 | No. 6 | Frequency | ||
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OFF | OFF | Every cycle | After 2nd freeze cycle | |
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ON | OFF | Every 2 cycles | After 3rd freeze cycle | |
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OFF | ON | Every 5 cycles | After 6th freeze cycle | |
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ON | ON | Every 10 cycles | After 11th freeze cycle |
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