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Hoshizaki F-300BAF service manual Low Water Safety

Models: F-300BAF

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6. Low Water Safety

If upper float switch fails to close, water valve remains open until upper float switch closes and water control relay energizes.

F-300BAF

Page 23

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Hoshizaki F-300BAF service manual Low Water Safety

Contents

HoshizakiHoshizaki America, Inc Number Issued Revised“A Superior Degree of Reliability” Self-Contained Flaker Model F-300BAF SERVICE MANUALPage CONTENTS 1. Upper Bearing Wear Check 1. F-300BAF I. Specifications A. IcemakerBin Control Spout Evaporator Gear Motor Compressor II. General Information A. ConstructionThe switch actuator is located in the ice storage bin 1. F-300BAFB. Ice Making Unit a Auxiliary Code K-1 and Earlier C. Control Box Layoutb Auxiliary Code K-2 and L-0 1. F-300BAFd Auxiliary Code M-1 and Later c Auxiliary Code L-1 and M-01. Solid-State Timer Board Control D. Timer Board2. Fill Cycle E. Sequence of OperationF. Ice Production Check 1. Startup2. Shutdown & Restart F-300BAF, F-500BAF Sequence Flow Chart and Component OperationComponents Energized when the Flush Switch is in the FLUSH Position 1. StartupF-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 Possible Cause B. Diagnostic Charts1. No Ice Production ProblemRemedy ProblemPossible Cause Possible Cause 2. Low Ice ProductionProblem ProblemRemedy 3. OtherProblem Possible Cause2. Evacuation and Recharge R-404A V. Removal and Replacement of ComponentsA. Service for Refrigerant Lines 1. Refrigerant RecoveryB. Brazing C. Removal and Replacement of Compressor E. Removal and Replacement of Expansion Valve D. Removal and Replacement of Drier13 Plug the unit back in 8 Check for leaks using nitrogen gas 140 PSIG and soap bubbles11 Place the expansion valve cover in position 12 Replace the panels in their correct positionsF. Removal and Replacement of Evaporator Assembly Components 1. Upper Bearing Wear Check 2. Removal and Replacement of Cutter5. Removal and Replacement of Evaporator 3. Removal and Replacement of Extruding Head4. Removal and Replacement of Auger 6a. Mechanical Seal 6. Removal and Replacement of Mechanical Seal and Lower Housing7. Removal and Replacement of Gear Motor 6b. Lower HousingI. Removal and Replacement of Flush Water Valve G. Removal and Replacement of Fan MotorH. Removal and Replacement of Inlet Water Valve 9 Pour water into the reservoir, and check for water leaks 12 Move the flush switch to the ICE position 13 Check for water leaks15 Move the flush switch to the ICE position 8 Connect the hose to the water valve and secure it with the clamp2. Cleaning Procedure VI. Cleaning and MaintenanceA. Cleaning and Sanitizing Instructions 1. Cleaning SolutionSpout A Spout A Packing 3. Sanitizing SolutionEvaporator Assembly Snap Pin 4. Sanitizing Procedure - Initial5. Sanitizing Procedure - Final Bracket22 Turn on the power supply and start the automatic icemaking process 18 Move the flush switch to the ICE position and run the icemaker19 Turn off the power supply after 30 minutes 21 Flush out any solution from the storage bin3 Air Filter B. Maintenance1 Stainless Steel Exterior 2 Storage Bin and ScoopC. Preparing the Icemaker for Long Storage