Hoshizaki F-300BAF specification

1. Startup

F-300BAF, F-500BAF Sequence Flow Chart and Component Operation

Flush switch in "ICE" Power switch "ON"

1. Fill Cycle 2. Ice Purge Cycle

60 sec. timer

3. Icemaking Cycle

		Refill Cycle
	UF/S closes terminating
LF/S opens	90 sec TC.
LF/S opens	If refill > 90 sec. TC
initiating refill


and 90 sec. TC

4. Low Water Safety

If refill achieved, icemaking cycle starts and timers are reset.

90 sec. timer 60 sec. timer

FR energized WCR de-energized WV energized

Low water safety ciruit closed. (Terminals 3 and 4 on timer board)

		UF/S open	LF/S closed
				UF/S open
	Comp energized					GM de-energized
		LF/S open	UF/S closed
				90 sec. TC exceeded
LF/S closed	FMS energized	90 sec. TC started	90 sec. TC ended		Comp de-energized GMPR de-energized
				WCR de-energized
UF/S closed	WCR continues	WCR de-energized	WCR energized	WV continues	FMS de-energized	WV continues
						FR continues
WCR energized	GM continues	WV energized	WV de-energized	Comp continues	WV continues

WV de-energized	GMPR continues	Comp continues	Comp continues	GM continues	GM continues
GM energized	FR continues	GM continues	GM continues	FMS continues	GMPR continues
GMPR energized		FMS continues	FMS continues	GMPR continues	FR continues
FR continues		GMPR continues	GMPR continues	FR continues
		FR continues	FR continues

2. Shutdown & Restart

1. Bin control proximity switch	2. Compressor and fan motor
opens to stop ice production.	de-energize, gear motor
	continues running.

3. Gear motor de-energizes and unit is "OFF"

4. Bin control proximity switch closes. Reservoir fills. LF/S and UF/S close. Gear motor starts 6.7 seconds later.

5. Compressor and fan motor energize. Ice production begins in 4

12	Bin control operation	90 seconds	60 seconds
12

6.7 sec.

60 seconds

to 6 minutes.

BC open	Comp de-energized
FR de-energized	FMS de-energized
WCR de-energized	GM continues
FWV energized	GMPR continues
Comp continues	FWV continues
FMS continues
GM continues
GMPR continues

GM de-energized GMPR de-energized FWV continues

BC closed	LF/S and UF/S close	Comp energized
FR energized	WCR energized	FMS energized
WV energized	WV de-energized	GM continues
FWV de-energized	GM energized	GMPR continues
	GMPR energized	WCR continues
	FR continues	FR continues

Legend:

BC - bin control Comp - compressor

FMS - self-contained fan motor FR - flush relay

FWV - flush water valve GM - gear motor

GMPR - gear motor protect relay LF/S - lower float switch

TC - timer control UF/S - upper float switch WCR - water control relay WV - inlet water valve

Components Energized when the Flush Switch is in the FLUSH Position

The FLUSH position is used when cleaning and sanitizing the machine. When in the FLUSH position, power is supplied to the flush valve. This allows cleaner and sanitizer to drain from the evaporator assembly.