Hoshizaki F-300BAF User Manual

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Summary of Contents

Page 1 - Hoshizaki

Hoshizaki“A Superior Degreeof Reliability”www.hoshizaki.comModelF-300BAFSelf-Contained FlakerHoshizaki America, Inc.Number: 73072Issued: 3-2-1999Revis

Page 2 - IMPORTANT

10D. Timer Board1. Solid-State Timer Board Control• A HOSHIZAKI exclusive solid-state sequence timer board is employed in Hoshizaki self-contained flak

Page 3 - CONTENTS

11E. Sequence of OperationHoshizaki utilizes a solid state timer board to switch the components on and off as needed. The sequence is as follows: 1. S

Page 4

12Legend:BC - bin controlComp - compressorFMS - self-contained fan motorFR - flush relayFWV - flush water valveGM - gear motorGMPR - gear motor protect

Page 5 - A. Icemaker

13III. Technical InformationA. Water Circuit and Refrigeration CircuitF-300BAF

Page 6 - A. Construction

14B. Wiring Diagram1. Auxiliary Code K-1 and EarlierF-300BAF

Page 7 - B. Ice Making Unit

152. Auxiliary Code K-2 and L-0F-300BAF

Page 8 - C. Control Box Layout

163. Auxiliary Code L-1 and M-0F-300BAF

Page 9

174. Auxiliary Code M-1 and LaterF-300BAF

Page 10 - D. Timer Board

18C. Sequence of Electrical Circuit1. Fill Cycle When power switch is moved to "ON" position, water is supplied to reservoir.F-300BAF

Page 11 - F. Ice Production Check

192. Ice Purge Cycle When reservoir has filled, gear motor starts.F-300BAF

Page 12

2IMPORTANTOnly qualified service technicians should attempt to service or maintain this unit. No such service or maintenance should be undertaken until

Page 13 - III. Technical Information

203. Freeze Cycle Compressor and condenser fan motor start about 60 sec. after gear motor starts.F-300BAF

Page 14 - B. Wiring Diagram

214. Shutdown Compressor and condenser fan motor stop about 90 sec. after bin control operates, gear motor stops about 60 sec. later. Flush water valv

Page 15 - F-300BAF

225. Cleaning - Flush Switch Compressor and condenser fan motor stop about 90 sec. after manually moving flush switch to FLUSH position. Gear motor sto

Page 16 - 3. Auxiliary Code L-1 and M-0

236. Low Water SafetyIf upper float switch fails to close, water valve remains open until upper float switch closes and water control relay energizes.F-

Page 17

247. Spout Safety SwitchWhen saftey switch is activated, the safety switch relay operates, and the icemaker does not run.F-300BAF

Page 18 - 1. Fill Cycle

258. High Pressure SwitchIn case of high pressure, pressure switch shuts down unit.F-300BAF

Page 19 - 2. Ice Purge Cycle

26D. Performance Data1. F-300BAFAPPROXIMATE Ambient Water Temp. (°F)ICE PRODUCTION Temp. (°F)PER 24 HR. 70 *303 *(137) 290 (131) 278 (126)80 267 (12

Page 20 - 3. Freeze Cycle

27IV. Service DiagnosisA. Diagnostic ProcedureThis diagnostic procedure is a sequence check that allows you to diagnose the electrical system and comp

Page 21 - 4. Shutdown

285) Refill/Low Water Safety Cycle – As ice is produced, the water level in the reservoir drops. As it drops, the upper float switch and lower float swit

Page 22

29B. Diagnostic Charts1. No Ice ProductionProblem Possible Cause Remedy[1] The icemaker will not start. (fill cycle, water valve)a) Power Supply 1. Off

Page 23 - 6. Low Water Safety

3Please review this manual. It should be read carefully before the unit is serviced or maintenance operations are performed. Only qualified service tec

Page 24 - 7. Spout Safety Switch

30Problem Possible Cause Remedyj) Water Control Relay 1. Bad contacts. 1. Replace.2.Open coil. 2. Replace.k) Water Valve 1. Coil winding opened. 1. R

Page 25 - 8. High Pressure Switch

31Problem Possible Cause Remedye) Compressor 1. Loose connections. 1. Tighten.2.Motor winding opened or grounded.2. Replace.3. Compressor locked and m

Page 26 - D. Performance Data

323. OtherProblem Possible Cause Remedy[1] Abnormal noise a)Fan Motor 1. Bearing worn out. 1. Replace.2.Fan blade deformed. 2. Replace fan blade.3. Fa

Page 27 - A. Diagnostic Procedure

33V. Removal and Replacement of ComponentsIMPORTANTEnsure all components, fasteners and thumbscrews are securely in place after the equipment is servi

Page 28

348) If necessary, add any remaining charge to the system through the low-side. Use a throttling valve or liquid dispensing device to add the remaini

Page 29 - B. Diagnostic Charts

35C. Removal and Replacement of CompressorIMPORTANTAlways install a new drier every time the sealed refrigeration system is opened. Do not replace th

Page 30

36D. Removal and Replacement of DrierIMPORTANTAlways install a new drier every time the sealed refrigeration system is opened. Do not replace the dri

Page 31 - 2. Low Ice Production

378) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.9) Evacuate the system, and charge it with refrigerant. See the nameplate for the

Page 32 - 3. Other

38F. Removal and Replacement of Evaporator Assembly ComponentsCAUTIONMake sure that the saftey switch and spout are properly installed after making re

Page 33

391. Upper Bearing Wear Check To ensure that the bearing inside the extruding head does not exceed the wear tolerance of .02", follow the instruc

Page 34 - B. Brazing

4V. Removal and Replacement of Components ... 33A. Service for Refrigerant Lines ...

Page 35

403. Removal and Replacement of Extruding Head1) Unplug the unit from the electrical outlet.2) Remove the panels.3) Remove the thumbscrews and take of

Page 36

414) Recover the refrigerant and store it in an approved container.5) Remove the thumbscrews and take off the spout from the evaporator.6) Disconnect

Page 37

427) Remove the allen head cap screws securing the evaporator to the lower bearing housing.8) Raise the evaporator up to access the lower housing.9) R

Page 38

4310) Replace the panels in their correct positions.11) Plug the unit back in.G. Removal and Replacement of Fan Motor1) Unplug the unit from the elect

Page 39

448) Connect the hose to the water valve and secure it with the clamp.9) Pour water into the reservoir, and check for water leaks.10) Open the water s

Page 40

45VI. Cleaning and MaintenanceIMPORTANTEnsure all components, fasteners and thumbscrews are securely in place after any maintenance or cleaning is don

Page 41

468) Remove the thumbscrews attaching spout (A) to the evaporator assembly and lift off spout (A) and spout packing (A). See Fig 4.9) Pour the cleanin

Page 42

474. Sanitizing Procedure - Initial1) Close the water supply line shut-off valve.2) In the storage bin, remove the thumbscrews attaching spout (B), th

Page 43

488) Using the thumbscrews, replace spouts (A) and (B) and spout packings (A) and (B) in their correct positions.9) Allow the icemaker to sit for abou

Page 44

49B. MaintenanceIMPORTANT1. This icemaker must be maintained individually, referring to the instruction manual and labels provided with the icemak

Page 45 - Spout Packing (B)

5I. SpecificationsA. Icemaker1. F-300BAFNote: We reserve the right to make changes in specifications and design without prior notice.AC SUPPLY VOLTAGE 1

Page 46

50C. Preparing the Icemaker for Long StorageWARNINGWhen shutting off the icemaker for an extended time, drain out all water from the water line and re

Page 47

6II. General InformationA. Construction1. F-300BAF *The switch actuator is located in the ice storage bin.Ice Storage BinSliding DoorControl Water Val

Page 48

7B. Ice Making Unit

Page 49 - B. Maintenance

8C. Control Box Layout1. F-300BAFa) Auxiliary Code K-1 and EarlierNote: The above component names are identical with the wiring label, but not with

Page 50

9c) Auxiliary Code L-1 and M-0FLUSH SWITCHPOWER SWITCHCONTROL BOARD FUSE (1A)GEAR MOTOR FUSE (1.5A)TRANSFORMERCAPACITOR - GEAR MOTORSTART CAPACITORFLU

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