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Hoshizaki F-300BAF service manual Freeze Cycle

Models: F-300BAF

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3. Freeze Cycle

3. Freeze Cycle

Compressor and condenser fan motor start about 60 sec. after gear motor starts.

F-300BAF

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Hoshizaki F-300BAF service manual Freeze Cycle

Contents

Number Issued Revised “A Superior Degree of Reliability”Self-Contained Flaker Model F-300BAF SERVICE MANUAL HoshizakiHoshizaki America, IncPage CONTENTS 1. Upper Bearing Wear Check I. Specifications A. Icemaker 1. F-300BAFII. General Information A. Construction The switch actuator is located in the ice storage bin1. F-300BAF Bin Control Spout Evaporator Gear Motor CompressorB. Ice Making Unit C. Control Box Layout b Auxiliary Code K-2 and L-01. F-300BAF a Auxiliary Code K-1 and Earlierc Auxiliary Code L-1 and M-0 d Auxiliary Code M-1 and LaterD. Timer Board 1. Solid-State Timer Board ControlE. Sequence of Operation F. Ice Production Check1. Startup 2. Fill CycleF-300BAF, F-500BAF Sequence Flow Chart and Component Operation Components Energized when the Flush Switch is in the FLUSH Position1. Startup 2. Shutdown & RestartIII. Technical Information A. Water Circuit and Refrigeration Circuit F-300BAFB. Wiring Diagram 1. Auxiliary Code K-1 and Earlier2. Auxiliary Code K-2 and L-0 F-300BAF3. Auxiliary Code L-1 and M-0 F-300BAF4. Auxiliary Code M-1 and Later F-300BAFC. Sequence of Electrical Circuit 1. Fill Cycle2. Ice Purge Cycle When reservoir has filled, gear motor starts F-300BAF3. Freeze Cycle F-300BAF4. Shutdown F-300BAF5. Cleaning - Flush Switch F-300BAF6. Low Water Safety F-300BAF7. Spout Safety Switch F-300BAF8. High Pressure Switch In case of high pressure, pressure switch shuts down unit F-300BAFD. Performance Data 1. F-300BAFIV. Service Diagnosis A. Diagnostic Procedure Page B. Diagnostic Charts 1. No Ice ProductionProblem Possible CauseRemedy ProblemPossible Cause 2. Low Ice Production ProblemProblem Possible Cause3. Other ProblemPossible Cause RemedyV. Removal and Replacement of Components A. Service for Refrigerant Lines1. Refrigerant Recovery 2. Evacuation and Recharge R-404AB. Brazing C. Removal and Replacement of Compressor D. Removal and Replacement of Drier E. Removal and Replacement of Expansion Valve8 Check for leaks using nitrogen gas 140 PSIG and soap bubbles 11 Place the expansion valve cover in position12 Replace the panels in their correct positions 13 Plug the unit back inF. Removal and Replacement of Evaporator Assembly Components 2. Removal and Replacement of Cutter 1. Upper Bearing Wear Check5. Removal and Replacement of Evaporator 3. Removal and Replacement of Extruding Head4. Removal and Replacement of Auger 6. Removal and Replacement of Mechanical Seal and Lower Housing 6a. Mechanical Seal6b. Lower Housing 7. Removal and Replacement of Gear MotorI. Removal and Replacement of Flush Water Valve G. Removal and Replacement of Fan MotorH. Removal and Replacement of Inlet Water Valve 12 Move the flush switch to the ICE position 13 Check for water leaks 15 Move the flush switch to the ICE position8 Connect the hose to the water valve and secure it with the clamp 9 Pour water into the reservoir, and check for water leaksVI. Cleaning and Maintenance A. Cleaning and Sanitizing Instructions1. Cleaning Solution 2. Cleaning ProcedureSpout A Spout A Packing 3. Sanitizing SolutionEvaporator Assembly 4. Sanitizing Procedure - Initial 5. Sanitizing Procedure - FinalBracket Snap Pin18 Move the flush switch to the ICE position and run the icemaker 19 Turn off the power supply after 30 minutes21 Flush out any solution from the storage bin 22 Turn on the power supply and start the automatic icemaking processB. Maintenance 1 Stainless Steel Exterior2 Storage Bin and Scoop 3 Air FilterC. Preparing the Icemaker for Long Storage