Hoshizaki FS-1022MLH-C Ice Maker User Manual


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13
d) Drain Cycle
(1) 1-in-1 Drain Cycle: DV energizes for 2 seconds once every hour when the
1-in-1drain cycle is activated (S1 dip switch 4 in the off position (factory default
position)). 1-hour drain cycle timer terminates, 2-second DT starts. DV energizes for
2seconds. 2-second DT terminates, 1-hour DT resets. All components and icemaking
continue. This setting is recommended for optimum icemaker performance. The
1-in-1drain cycle allows any sediment to drain from the evaporator without interrupting
the icemaking process.
(2) 1-in-12 Drain Cycle (optional): DV energizes for ten minutes once every
12hourswhenthe1-in-12draincycleisactivated(S1dipswitch4inthe"ON"
position (optional)). 12-hour drain cycle timer terminates, CR (X1 on CB) and PDS
de-energize, GMR (X2on CB), GM, GMPR, and EH continue. Unit is in pump-down
mode. Once the low-side pressure drops to 9 PSIG, CLPS opens, de-energizing MC,
Comp, and FMR. 5-minute ice purge timer begins. When the 5-minute ice purge timer
terminates, GMR (X2 on CB), GM, GMPR, and EH de-energize. 10-minute DT begins,
DV energizes. After 10-minute DT terminates, 12 hour drain cycle timer starts.
(3) Manual Drain: Manual drain is used when servicing evaporator components and
cleaning and sanitizing the unit. When the unit is making ice and the control switch is
movedtothe"DRAIN"position,thereisa3-seconddelay,thenCR(X1onCB)and
PDS de-energize. Unit is in pump-down mode. Once the low-side pressure drops to
9 PSIG, CLPS opens, de-energizing MC, Comp, and FMR. 5-minute ice purge timer
begins. When the 5-minute ice purge timer terminates, GMR (X2 on CB), GM, and
GMPR de-energize. DV energizes to drain the evaporator and reservoir. To avoid the
5-minute shutdown delay, turn off the icemaker power supply, then move the control
switchtothe"DRAIN"position.DVde-energizeswhenthecontrolswitchismovedto
the"ICE"position.
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