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Hoshizaki F-330BAH, Service Manual

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CONTENTS

Important Safety Information ................................................................................................. 5
I. Construction and Water/Refrigeration Circuit Diagram ....................................................... 7

A. Construction .................................................................................................................. 7

1a. F-330BAH(-C) Auxiliary Code C-0 and Earlier ....................................................... 7
1b. F-330BAH(-C) Auxiliary Code C-1 and Later ......................................................... 8

B. Ice Making Appliance .................................................................................................... 9
C. Water/Refrigeration Circuit Diagram ............................................................................ 10

II. Sequence of Operation and Service Diagnosis ................................................................11

A. Sequence of Operation Flow Chart ..............................................................................11
B. Service Diagnosis ....................................................................................................... 12

1. Ice Production Check ............................................................................................. 12
2a. Diagnostic Procedure Auxiliary Code C-0 and Earlier ......................................... 12
2b. Diagnostic Procedure Auxiliary Code C-1 and Later ............................................ 15

C. Control Board Check ................................................................................................... 18
D. Bin Control Check ....................................................................................................... 18
E. Float Switch Check and Cleaning ............................................................................... 19

1. Float Switch Check ................................................................................................ 19
2. Float Switch Cleaning ............................................................................................ 19

F. Diagnostic Tables ......................................................................................................... 21

III. Controls and Relays ........................................................................................................ 23

A. Control Board .............................................................................................................. 23
B. Control Board Layout ................................................................................................... 24
C. Relays ......................................................................................................................... 25
D. Switches ...................................................................................................................... 25

1. Power Switch .......................................................................................................... 25
2. Flush/Control Switch .............................................................................................. 25

IV. Refrigeration Circuit and Component Service Information.............................................. 26

A. Refrigeration Circuit Service Information .................................................................... 26
B. Component Service Information .................................................................................. 29

1. Upper Bearing Wear Check

  ...................................................................... 32

2. Removal and Replacement of Cutter ..................................................................... 33
3. Removal and Replacement of Extruding Head ...................................................... 33
4. Removal and Replacement of Auger ..................................................................... 34
5. Removal and Replacement of Evaporator ............................................................. 35
6. Removal and Replacement of Mechanical Seal and Lower Housing  ................... 36
7. Removal and Replacement of Gear Motor ............................................................. 37

V. Maintenance .................................................................................................................... 38

A. Maintenance Schedule ................................................................................................ 39

VI. Preparing the Appliance for Periods of Non-Use ............................................................ 40
VII. Disposal ......................................................................................................................... 41

IMPORTANT

This manual should be read carefully before the appliance is serviced. Read 
the warnings and guidelines contained in this manual carefully as they provide 
essential information for the continued safe use, service, and maintenance of the 
appliance. Retain this manual for any further reference that may be necessary.

Summary of Contents for F-330BAH

Page 1: ...Hoshizaki A Superior Degree of Reliability www hoshizaki com Models F 330BAH C Self Contained Flaker Hoshizaki America Inc Number Issued 8 2 2007 Revised 4 22 2013 SERVICE MANUAL 73151...

Page 2: ...due to improper installation is not covered under warranty Hoshizaki provides this manual primarily to assist qualified service technicians in the service of the appliance Should the reader have any q...

Page 3: ...4 C Relays 25 D Switches 25 1 Power Switch 25 2 Flush Control Switch 25 IV Refrigeration Circuit and Component Service Information 26 A Refrigeration Circuit Service Information 26 B Component Service...

Page 4: ...Sheet 44 1 F 330BAH 44 2 F 330BAH C 45 C Wiring Diagrams 46 1a F 330BAH C Label Diagram Auxiliary Code C 0 and Earlier 46 1b F 330BAH C Ladder Diagram Auxiliary Code C 0 and Earlier 47 2a F 330BAH C L...

Page 5: ...ailure to meet these code requirements could result in death electric shock serious injury fire or damage to the appliance To reduce the risk of electric shock do not touch the appliance power switch...

Page 6: ...nd this appliance Do not climb stand or hang on the appliance or allow children or animals to do so Serious injury could occur or the appliance could be damaged Do not use combustible spray or place v...

Page 7: ...330BAH C Auxiliary Code C 0 and Earlier Ice Storage Bin Inlet Water Valve Reservoir Control Box Bin Control The switch actuator is located in the ice storage bin Spout Evaporator Gear Motor Compresso...

Page 8: ...er Valve Reservoir Control Box Bin Control The switch actuator is located in the ice storage bin Spout Evaporator Gear Motor Compressor Front Drain Valve Rear Evaporator Heater C Model 1b F 330BAH C A...

Page 9: ...C Evaporator Heater C Model Seal Bolt Gear Motor Spline Coupling Housing Lower Bearing O Ring Mechanical Seal Cylinder Auger Extruding Head Upper Bearing Cutter Insulation Socket Head Cap Screw and Sp...

Page 10: ...Water Valve Flush Drain Valve Float Switch Water Level To Drain Evaporator Spout Gear Motor Overflow Reservoir Water Supply Drier Condenser Fan Motor High Pressure Switch Compressor Refrigeration Circ...

Page 11: ...xceeded Maximum 90 sec 60 sec BC open Comp continues FM continues GM continues 2 Ice Purge Cycle 90 sec FT starts when LFS opens and terminates when UFS closes Low water safety circuit closed 60 sec C...

Page 12: ...ck that allows you to diagnose the electrical system and components Before proceeding check for correct installation adequate water supply minimum of 10 PSIG maximum of 113 PSIG and proper voltage per...

Page 13: ...ssures equalize If HPS does not reset and pressures are equalized replace HPS If pressures are not equalized reclaim refrigerant and diagnose refrigeration circuit restriction X4 Relay Diagnosis Check...

Page 14: ...nfirm BC is open and X5 relay de energizes If not see II D Bin Control Check Next confirm X4 relay de energizes If not check for 24VAC at X5 relay 3 R to neutral LBU If 24VAC is present replace X5 rel...

Page 15: ...VAC is not present X10 relay is energized or contacts are sticking Replace as needed If 24VAC is present check DV coil continuity If open replace DV HPS Diagnosis Check that the condenser air filter a...

Page 16: ...2 relay 5 W R to neutral LBU Next check for 24VAC at X12 relay 3 P to neutral LBU If 24VAC is present on X12 relay 5 W R and not on X12 relay 3 P replace X12 relay 6 Freeze Cycle GM X12 relay and EH C...

Page 17: ...C at CB 3 BR to CB 4 DBU If 0VDC is present replace X11 relay If 35VDC is present and Comp and FM remain energized replace CB 60 sec after Comp and FM de energize confirm that GM and X12 relay de ener...

Page 18: ...zes If not replace CB Once GM energizes X3 C 0 and earlier or X12 C 1 and later relay energizes closing CB 10 W BK and CB 11 W O circuit and starting 90 sec Comp delay timer When 90 sec Comp delay tim...

Page 19: ...ity again Both UFS and LFS should be closed Check for closed continuity between black BK common and red R UFS and between black BK common and blue BU LFS If either are open follow the steps in II E 2...

Page 20: ...ter and replace in its correct position 8 Replace the rear and top panels in their correct positions 9 Plug the appliance into the electrical outlet then move the power switch to the ON position to st...

Page 21: ...Control Check a Open b Defective 9 Flush Control Switch a In FLUSH C 0 and earlier or DRAIN C 1 and later position b Defective 10 X5 Relay C 0 and earlier or X10 Relay C 1 and later a Defective 11 Eva...

Page 22: ...e 2 Inlet Water Valve a Screen or orifice clogged b Defective 3 Water Supply a Water supply off or improper water pressure 10 to 113 PSIG b External water filters clogged 4 X4 Relay C 0 and earlier or...

Page 23: ...rcuit closes CB energizes X1 relay and GM starts If open longer than 90 sec appliance shuts down 2 Jumper The jumper between CB 5 P and 6 P must be in place for CB operation 3 Gear Motor confirmation...

Page 24: ...essor 4 115VAC Input 11 35VDC Input Compressor Delay Circuit 5 and 6 35VDC Jumper 3 35VDC Output Low Water Safety Circuit 1 Transformer 24VAC Input 2 Transformer 24VAC Neutral 4 35VDC Input Low Water...

Page 25: ...en de energized relay allows for DV operation during off cycles This prevents DV from energizing during the icemaking process X6 C 0 and earlier Relay energizes when safety switch closes de energizing...

Page 26: ...then raise the pressure using nitrogen gas 140 PSIG Do not use R 404A as a mixture with pressurized air for leak testing NOTICE Always recover the refrigerant and store it in an approved container Do...

Page 27: ...g an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG Do not use R 404A as a mixture with pressurized air for leak testing 3 Evacuation and Recharge R 404A 1 Attach a v...

Page 28: ...the system to charge with liquid until the proper charge weight is met 8 If necessary add any remaining charge to the system through the low side NOTICE To prevent compressor damage use a throttling v...

Page 29: ...ll a new drier start capacitor and start relay Upper and Lower Bearings Inspect the upper bearing for wear See IV B 1 Upper Bearing Wear Check Replace if necessary When replacing the upper bearing it...

Page 30: ...30 Thumbscrew Spout A Spout B Thumbscrew Fig 3 Spout Assembly C 1 and Later Thumbscrew Spout A Safety Bracket A Safety Switch Spout B Thumbscrew Safety Bracket B Spout A Spout Assembly C 0 and Earlier...

Page 31: ...g pressed into lower housing Hex Bolt and Washer Evaporator Flange Evaporator Assembly Flaker Cutter Flaker Extruding Head Evaporator Socket Head Cap Screw and Split Lock Washer Upper Bearing pressed...

Page 32: ...auge in between the back side of the auger shaft and the bearing surface See Fig 5 Check several locations around the auger shaft If the gauge goes between the shaft and the bearing at any point or if...

Page 33: ...ement of Extruding Head 1 Remove the front panel Move the power switch to the OFF position then unplug the appliance from the electrical outlet 2 Remove the top panel and top insulation panel 3 Remove...

Page 34: ...7 Remove the seal bolts securing the extruding head Using the cutter lift out the auger assembly 8 Remove the cutter and extruding head from the auger and place them on the new auger 9 Install the new...

Page 35: ...hanical seal and O ring prior to installing the new evaporator The mechanical seal consists of two parts One moves along with the auger and the other is fixed on the lower housing If the contact surfa...

Page 36: ...faces of these two parts are worn cracked or scratched the mechanical seal may cause water leaks and should be replaced 8 Remove the socket head cap screws securing the evaporator to the lower housing...

Page 37: ...ng spout B to the bin then remove spout B See Fig 3 5 Remove the thumbscrews attaching spout A and safety bracket A if applicable to the evaporator assembly then remove spout A and safety bracket A if...

Page 38: ...f electric shock do not touch the appliance power switch or flush control switch with damp hands Before Servicing Move the appliance s power switch to the OFF position Turn off the power supply Unplug...

Page 39: ...n The solution will flow down to the gear motor drain pan and out the drain line to sanitize these areas Repeat with a cup of clean water to rinse Icemaker Storage Bin and Drains Check to make sure th...

Page 40: ...n the appliance with the potable water supply line shut off valve closed Allow the appliance to make ice until it stops automatically 2 Open the potable water supply line drain valve and blow the line...

Page 41: ...osal The appliance contains refrigerant and must be disposed of in accordance with applicable national state and local codes and regulations Refrigerant must be recovered by properly certified service...

Page 42: ...67 kg Shipping 178 lbs 81 kg CONNECTIONS ELECTRIC Cord Connection WATER SUPPLY Inlet 1 2 FPT DRAIN Drain 3 4 FPT ICE MAKING SYSTEM Auger type HARVESTING SYSTEM Direct Driven Auger 80W Gear Motor ICE M...

Page 43: ...81 kg CONNECTIONS ELECTRIC Cord Connection WATER SUPPLY Inlet 1 2 FPT DRAIN Drain 3 4 FPT ICE MAKING SYSTEM Auger type HARVESTING SYSTEM Direct Driven Auger 80W Gear Motor ICE MAKING WATER CONTROL Flo...

Page 44: ...43 36 137 CONSUMPTION PER 24 HR 80 35 132 33 126 32 121 90 31 117 30 113 28 107 gal day l day 100 27 103 26 99 25 93 EVAPORATOR OUTLET TEMP 70 16 9 16 9 16 9 80 16 9 13 10 13 10 90 13 10 13 10 12 11 F...

Page 45: ...NSUMPTION PER 24 HR 80 33 125 32 120 30 114 90 29 109 28 104 26 100 gal day l day 100 25 95 24 91 23 86 EVAPORATOR OUTLET TEMP 70 16 9 16 9 16 9 80 16 9 13 10 13 10 90 13 10 13 10 12 11 F C 100 12 11...

Page 46: ...46 C Wiring Diagrams 1a F 330BAH C Label Diagram Auxiliary Code C 0 and Earlier High Pressure Switch Cut out 426 22 PSIG Cut in 341 22 PSIG 0...

Page 47: ...47 1b F 330BAH C Ladder Diagram Auxiliary Code C 0 and Earlier High Pressure Switch Cut out 426 22 PSIG Cut in 341 22 PSIG 0 Auxiliary Code S 0 Auxiliary Code S 1 to C 0...

Page 48: ...48 2a F 330BAH C Label Diagram Auxiliary Code C 1 and Later High Pressure Switch Cut out 426 22 PSIG Cut in 341 22 PSIG 0...

Page 49: ...49 2b F 330BAH C Ladder Diagram Auxiliary Code C 1 and Later High Pressure Switch Cut out 426 22 PSIG Cut in 341 22 PSIG 0...

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