Hoshizaki F-450MAH-C service manual Gear Motor Relay OFF FAN Motor

Page 26

LOW WATER

1. CIRCUIT PROTECT	ON
RELAY	OFF

UPPER

2. WATER LEVEL LOWER BOTTOM

ON

UPPER

OFF

3. FLOAT

	SWITCH	ON
	LOWER	ON
	LOWER	OFF
		OFF
	4. WATER CONTROL	ON
	RELAY	OFF
	5. CONTROL WATER	ON
	VALVE	OFF
	6. FLUSH TIMER	1 - 2
	6. FLUSH TIMER	2 - 3
		2 - 3
	7. FLUSH SWITCH	FLUSH
	7. FLUSH SWITCH	ICE
		ICE
	8. FLUSH WATER	ON
	VALVE	OFF
	9. BIN CONTROL	ON
	9. BIN CONTROL	OFF
		OFF
		150 sec
	10. GEAR MOTOR	ON
	RELAY	OFF
	11. GEAR MOTOR	ON
	11. GEAR MOTOR	OFF
		OFF
	12. FAN MOTOR	ON
	12. FAN MOTOR	OFF
		OFF
		90 sec
	13. COMPRESSOR	ON
	13. COMPRESSOR	OFF
		OFF
	14. PRESSURE	ON
	SWITCH	OFF

FLUSH TIMER

21 min every 12 hr

1 sec

150 sec

1 sec

60 sec

90 sec

60 sec

26

Image 26

Contents Modular Flaker Models 450MAH-C Hoshizaki AMERICA, INC Contents Specifications 1. F-450MAH Water TEMP. F450MAH-C II. General Information Construction Control Box Layout Solid-State Control Timer BoardTimer Board Sequence Part Code Page Page Wiring Diagram 450MAH450MAH-C Sequence of Electrical Circuit Page Compressor starts about 60 sec. after gear motor starts Page Low water except water-cooled model Page Page Page Page Page Timing Chart Gear Motor Relay OFF FAN Motor Flush ICE OFF Upper Lower Bottom Performance Data ICE Production883 891 898 IV. Service Diagnosis No Ice Production Problem Possible Cause Remedy Problem Possible Cause Remedy Low Ice Production Other Refrigerant Recovery Removal and Replacement of ComponentsService for Refrigerant Lines Evacuation and Recharge R-404ABrazing Removal and Replacement of Compressor Removal and Replacement of Drier Removal and Replacement of Expansion Valve Extruding Head Removal and Replacement of Evaporator AssemblyCutter AugerBearing-Lower and Mechanical Seal Gear MotorRemoval and Replacement of Fan Motor Removal and Replacement of Control Water ValveRemoval and Replacement of Flush Water Valve VI. Cleaning and Maintenance Preparing the Icemaker for Long StorageCleaning and Sanitizing Instructions Cleaning SolutionCleaning Procedure Sanitizing Solution Sanitizing Procedure InitialSanitizing Procedure Final Page Maintenance Instructions