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Hoshizaki F-300BAF III. Technical Information A. Water Circuit and Refrigeration Circuit

Models: F-300BAF

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III. Technical Information

III. Technical Information

A. Water Circuit and Refrigeration Circuit

F-300BAF

13

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Hoshizaki F-300BAF service manual III. Technical Information A. Water Circuit and Refrigeration Circuit

Contents

“A Superior Degree of Reliability” Number Issued RevisedSelf-Contained Flaker Model F-300BAF SERVICE MANUAL HoshizakiHoshizaki America, IncPage CONTENTS 1. Upper Bearing Wear Check 1. F-300BAF I. Specifications A. IcemakerThe switch actuator is located in the ice storage bin II. General Information A. Construction1. F-300BAF Bin Control Spout Evaporator Gear Motor CompressorB. Ice Making Unit b Auxiliary Code K-2 and L-0 C. Control Box Layout1. F-300BAF a Auxiliary Code K-1 and Earlierd Auxiliary Code M-1 and Later c Auxiliary Code L-1 and M-01. Solid-State Timer Board Control D. Timer BoardF. Ice Production Check E. Sequence of Operation1. Startup 2. Fill CycleComponents Energized when the Flush Switch is in the FLUSH Position F-300BAF, F-500BAF Sequence Flow Chart and Component Operation1. Startup 2. Shutdown & RestartF-300BAF III. Technical Information A. Water Circuit and Refrigeration Circuit1. Auxiliary Code K-1 and Earlier B. Wiring DiagramF-300BAF 2. Auxiliary Code K-2 and L-0F-300BAF 3. Auxiliary Code L-1 and M-0F-300BAF 4. Auxiliary Code M-1 and Later1. Fill Cycle C. Sequence of Electrical CircuitWhen reservoir has filled, gear motor starts F-300BAF 2. Ice Purge CycleF-300BAF 3. Freeze CycleF-300BAF 4. ShutdownF-300BAF 5. Cleaning - Flush SwitchF-300BAF 6. Low Water SafetyF-300BAF 7. Spout Safety SwitchIn case of high pressure, pressure switch shuts down unit F-300BAF 8. High Pressure Switch1. F-300BAF D. Performance DataIV. Service Diagnosis A. Diagnostic Procedure Page 1. No Ice Production B. Diagnostic ChartsProblem Possible CausePossible Cause ProblemRemedy Problem 2. Low Ice ProductionProblem Possible CauseProblem 3. OtherPossible Cause RemedyA. Service for Refrigerant Lines V. Removal and Replacement of Components1. Refrigerant Recovery 2. Evacuation and Recharge R-404AB. Brazing C. Removal and Replacement of Compressor E. Removal and Replacement of Expansion Valve D. Removal and Replacement of Drier11 Place the expansion valve cover in position 8 Check for leaks using nitrogen gas 140 PSIG and soap bubbles12 Replace the panels in their correct positions 13 Plug the unit back inF. Removal and Replacement of Evaporator Assembly Components 1. Upper Bearing Wear Check 2. Removal and Replacement of Cutter4. Removal and Replacement of Auger 3. Removal and Replacement of Extruding Head5. Removal and Replacement of Evaporator 6a. Mechanical Seal 6. Removal and Replacement of Mechanical Seal and Lower Housing7. Removal and Replacement of Gear Motor 6b. Lower HousingH. Removal and Replacement of Inlet Water Valve G. Removal and Replacement of Fan MotorI. Removal and Replacement of Flush Water Valve 15 Move the flush switch to the ICE position 12 Move the flush switch to the ICE position 13 Check for water leaks8 Connect the hose to the water valve and secure it with the clamp 9 Pour water into the reservoir, and check for water leaksA. Cleaning and Sanitizing Instructions VI. Cleaning and Maintenance1. Cleaning Solution 2. Cleaning ProcedureEvaporator Assembly 3. Sanitizing SolutionSpout A Spout A Packing 5. Sanitizing Procedure - Final 4. Sanitizing Procedure - InitialBracket Snap Pin19 Turn off the power supply after 30 minutes 18 Move the flush switch to the ICE position and run the icemaker21 Flush out any solution from the storage bin 22 Turn on the power supply and start the automatic icemaking process1 Stainless Steel Exterior B. Maintenance2 Storage Bin and Scoop 3 Air FilterC. Preparing the Icemaker for Long Storage