Hoshizaki FS-1022MLH-C service manual Control Board Layout

Page 17

1. Control Board Layout

"F-A" Control Board

•K9 Connector (5VDC)

 

 

#1 & #2 Control Switch

 

 

Open: Icemaking

• "GM" LED

• "COMP" LED

Closed: Drain

(X2 Relay)

(X1 Relay)

 

#3 & #4 Jumper

Gear Motor

Pump-Down

 

 

 

 

Evaporator Heater

Solenoid Valve

 

 

#5 & #6 Gear Motor Protect

 

 

 

 

Relay Circuit

 

 

 

 

 

 

 

 

 

 

• K1 Connector

• "SERVICE" Button

(Ice Purge Cycle Bypass)

(115VAC)

 

#3 115VAC Input

 

#2 Gear Motor,

• K8 Connector

Evaporator

(24VAC and 5VDC)

Heater

#1 Transformer 24VAC Input

• "FLUSH" LED

#2 Transformer 24VAC Neutral

#3 & #4 Mechanical Backup Bin

(X3 Relay)

Control (5VDC)

Drain Valve

#5 Float Switch Common (5VDC)

• K2 Connector

#6 Upper Float Switch

(24VAC)

#7 Lower Float Switch

#10 Drain Valve

 

#9 Transformer

 

24VAC Input

 

#8 Inlet Water Valve

• K7 Connector-Open

#7 Transformer

24VAC Input

 

• "WTRIN" LED

• "POWER OK" LED

 

(X4 Relay)

 

Inlet Water Valve

 

 

• S1 Dip Switch

Water Dispensing

 

 

Valve, Agitation

 

 

Motor, and Ice

 

 

Dispensing LEDs

 

• K6 Connector (20VDC)

(not used on this

 

Infrared Sensor Bin Control

model)

 

Dark Blue

 

 

White (signal) (common)

• J2 Connector-Open

• K3 Connector-Open

Brown (ground)

•K4 Connector-Open

•K5 Connector-Open

"F-A" Control Board

Part Number 2A4296-01

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Contents SRC-10H Hoshizaki AMERICA, INC Contents Page Serious injury Important Safety InformationIndicates important information about the use and care UnitFor SRC FS-1022MLH-C Specifications IcemakerSRC-10H Condensing UnitIcemaker FS-1022MLH-C II. General Information ConstructionCondensing Unit a SRC-10H Icemaking Unit Sequence Cycles and Shutdown Sequence of OperationDrain Cycle Shutdown Cycle Sequence Flow Chart Control Board Sequence Flow Chart FS-1022MLH-C/SRC-10HControl Board Control Board Control Board LayoutNo. of Beeps Type of Alarm Reset Options Every 5 sec LED Lights and Audible Alarm SafetiesSequence Step Energized Components Min MaxSeconds 1.6 minutes Factory Default Controls and AdjustmentsS1 Dip Switch Setting Infrared Sensor Shutdown Delay S1 Dip Switch Setting Dispense Time S1 Dip Switch Setting Drain Timer IntervalBackup S1 Dip Switch MechanicalShutdown Delay Bin ControlIII Wiring Diagrams High-Pressure Switch Control Low-Pressure SwitchSafety Low-Pressure Switch Manual Reset FS-1022MLH-C with SRC-10H Performance DataIce Production Check IV. Service DiagnosisDiagnostic Procedure Page Page Page Control Board Check 5VDC Page Infrared Sensor Check Bin Control CheckMechanical Backup Bin Control Check Page Float Switch Cleaning Float Switch Check and CleaningFloat Switch Check Page No Ice Production Possible Cause Startup Diagnostic ChartsNo Ice Production No Ice Production Possible Cause Shutdown Service for Refrigerant Lines Removal and Replacement of ComponentsEvacuation and Recharge R-404A Refrigerant RecoveryBrazing Component Important Notes for Component ReplacementEvaporator Assembly Components. See Fig Evaporator Assembly Upper Bearing Wear Check Removal and Replacement of CutterRemoval and Replacement of Auger Removal and Replacement of Extruding HeadRemoval and Replacement of Evaporator Page Removal and Replacement of Gear Motor 6b. Lower HousingPage Cleaning and Sanitizing Instructions VI. Cleaning and MaintenanceCleaning Solution Cleaning ProcedureFloat Switch Assembly Reservoir Cover Sanitizing Procedure Initial Sanitizing SolutionSanitizing Procedure Final Maintenance Frequency Area Task Maintenance ScheduleDrain the evaporator Preparing the Icemaker for Long StorageRemove the water from the icemaker water supply line
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