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Hoshizaki FS-1022MLH-C User Manual

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17
"F-A" Control Board 
"F-A" Control Board
Part Number 2A4296-01 
•
"FLUSH" LED 
   (X3 Relay)
   Drain Valve
• "COMP" LED 
   (X1 Relay)
   Pump-Down    
   Solenoid Valve
•
 "GM" LED 
   (X2 Relay)
   Gear Motor
   Evaporator Heater
•
K1 Connector
   (115VAC)
#3 115VAC Input
#2 Gear Motor,    
     Evaporator  
     Heater 
•
"WTRIN" LED    
   (X4 Relay)
   Inlet Water Valve
•
K6 Connector (20VDC)
  Infrared Sensor Bin Control
•
 "SERVICE" Button
  
(Ice Purge Cycle Bypass)
#5 & #6 Gear Motor Protect      
              Relay Circuit 
#3 & #4 Jumper
#1 & #2 Control Switch
 
  Open: Icemaking
 
  Closed: Drain
• "POWER OK" LED
•
 S1 Dip Switch
1. Control Board Layout
•
K9 Connector (5VDC)
•
K8 Connector 
  (24VAC and 5VDC) 
#1 Transformer 24VAC Input
#2 Transformer 24VAC Neutral
#3 & #4 Mechanical Backup Bin  
     
  Control (5VDC)
#5 Float Switch Common (5VDC) 
#6 Upper Float Switch
#7 Lower Float Switch
•
 K7 Connector-Open
•
K2 Connector
   (24VAC)
#10 Drain Valve
#9 Transformer  
     24VAC Input
#8 Inlet Water Valve
#7 Transformer  
     24VAC Input
Water Dispensing 
Valve, Agitation 
Motor, and Ice 
Dispensing LEDs 
(not used on this 
model)
• K3 Connector-Open
• K4 Connector-Open
• K5 Connector-Open
• J2 Connector-Open
Brown (ground)
White (signal) (common)
Dark Blue