Hoshizaki C-100BAF Service Manual
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Hoshizaki C-100BAF Service Manual

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Hoshizaki
Hoshizaki America, Inc.
"A Superior Degree
of Reliability"
www.hoshizaki.com
Self-Contained Cubelet
Models
C-100BAF
C-100BAF-DS
C-100BAF-AD
C-100BAF-ADDS
SERVICE MANUAL
Number: 73180
Issued: 10-6-2010
Revised: 1-9-2012

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Summary of Contents for Hoshizaki C-100BAF

  • Page 1 Hoshizaki Hoshizaki America, Inc. Self-Contained Cubelet Models C-100BAF C-100BAF-DS C-100BAF-AD C-100BAF-ADDS SERVICE MANUAL “A Superior Degree of Reliability” www.hoshizaki.com Number: 73180 Issued: 10-6-2010 Revised: 1-9-2012...
  • Page 2 Hoshizaki provides this manual primarily to assist qualified service technicians in the service of the icemaker. Should the reader have any questions or concerns which have not been satisfactorily addressed, please call, send an e-mail message, or write to the Hoshizaki Technical Support Department for assistance. Phone: 1-800-233-1940; (770) 487-2331 Fax: 1-800-843-1056;...

  • Page 3: Table Of Contents

    Retain this booklet for any further reference that may be necessary. CONTENTS Important Safety Information ....................5 I. Specifications ........................7 A. C-100BAF ........................7 1. Auxiliary Codes A-1 and Earlier ................7 2. Auxiliary Codes A-2 and Later .................. 8 B. C-100BAF-DS ........................ 9 1.
  • Page 4 D. Float Switch Check and Cleaning (auxiliary codes A-2 and later) ....... 28 1. Float Switch Check ....................28 2. Float Switch Cleaning ..................... 29 E. Optional Drain Pump HS-0248 ..................30 1. Overview ......................... 30 2. Drain Pump Check ....................30 3.

  • Page 5: Important Safety Information

    Important Safety Information Throughout this manual, notices appear to bring your attention to situations which could result in death, serious injury, damage to the appliance, or damage to property. WARNING Indicates a hazardous situation which could result in death or serious injury.
  • Page 6 WARNING, continued • This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

  • Page 7: Specifications

    I. Specifications A. C-100BAF 1. Auxiliary Codes A-1 and Earlier AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 4.0 A MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) lbs./day ( kg/day )

  • Page 8: Auxiliary Codes A-2 And Later

    A. C-100BAF, continued 2. Auxiliary Codes A-2 and Later AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 4.0 A MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) lbs./day ( kg/day )

  • Page 9: C-100Baf-Ds

    B. C-100BAF-DS 1. Auxiliary Codes A-1 and Earlier AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 4.0 A MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) lbs./day ( kg/day )

  • Page 10: Auxiliary Codes A-2 And Later

    B. C-100BAF-DS, continued 2. Auxiliary Codes A-2 and Later AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 4.0 A MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) lbs./day ( kg/day )

  • Page 11: C-100Baf-Ad

    C. C-100BAF-AD 1. Auxiliary Codes A-1 and Earlier AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 4.0 A MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) lbs./day ( kg/day )

  • Page 12: Auxiliary Codes A-2 And Later

    C. C-100BAF-AD, continued 2. Auxiliary Codes A-2 and Later AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 4.0 A MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) lbs./day ( kg/day )

  • Page 13: C-100Baf-Adds

    D. C-100BAF-ADDS 1. Auxiliary Codes A-1 and Earlier AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 4.0 A MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) lbs./day ( kg/day )

  • Page 14: Auxiliary Codes A-2 And Later

    D. C-100BAF-ADDS, continued 2. Auxiliary Codes A-2 and Later AC SUPPLY VOLTAGE 115/60/1 AMPERAGE 4.0 A MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) lbs./day ( kg/day )

  • Page 15: General Information

    Slope Power Switch Control Box Front Panel Air-Cooled Condenser and Condenser Fan Motor Louver Reservoir Emergency Overflow Hose Auxiliary Codes A-2 and Later Front C-100BAF-AD Shown Top Panel Top Panel Inlet Water Valve Evaporator Bin Control Condensate Thermostat Float-Operated Evaporator...

  • Page 16: Icemaking Unit

    2. Icemaking Unit Cutter (motionless) Socket Head Cap Screw Evaporator Flange Extruding Head and Upper Bearing Auger Gear Motor Cylinder Insulation Mechanical Seal O-Ring Housing and Lower Bearing Socket Head Cap Screw Spline Coupling with Washer Hex Head Bolt with Washer Fig.

  • Page 17: Sequence Of Operation

    Ice fills storage bin to level of BC. BC opens within 10 seconds after ice contact. When BC opens, BCH remains energized. GM, FM, CR, and Comp de-energize. When ice level lowers and BC closes, the icemaker starts operating again. C-100BAF Series Sequence Flow Chart and Component Operation (auxiliary codes A-1 and earlier) Low Water/ 2.

  • Page 18: Auxiliary Codes A-2 And Later

    BC opens, BCH remains energized. WCR, TDR, GM, FM, CR, and Comp de-energize. When ice level lowers and BC closes, the icemaker starts operating again. C-100BAF Series Sequence Flow Chart and Component Operation (auxiliary codes A-2 and later) 2. Freeze Cycle 1.

  • Page 19: Technical Information

    III. Technical Information A. Water Circuit and Refrigeration Circuit 1. Auxiliary Codes A-1 and Earlier Float-Operated Inlet Water Valve Water Inlet Water Level Water Reservoir Evaporator Assembly Water Supply Gear Motor Overflow Hose Capillary Tube Drier Condenser Condenser Fan Motor Suction Temperature Safety...

  • Page 20: Auxiliary Codes A-2 And Later

    2. Auxiliary Codes A-2 and Later Water Inlet Inlet Water Valve Float Switch Water Level Evaporator Assembly Water Reservoir Water Supply Gear Motor Overflow Hoses Capillary Tube Drier Condenser Condenser Fan Motor Suction Discharge Compressor Fig. 3b...

  • Page 21: Wiring Diagram

    (low water/ freeze-up safety) (external protector 2.4~3.0A) (3W) (internal protector) WIRE COLOR CODE (external protector) b) Auxiliary Codes A-2 and Later (90-second fill timer (low water safety)) (external (3W) protector 2.4~3.0A) (internal protector) WIRE COLOR CODE (external protector) C-100BAF Series...

  • Page 22: Icemaker With Optional Drain Pump Hs-0248

    (low water/ freeze-up safety) (3W) (external protector 2.4~3.0A) (internal protector) WIRE COLOR CODE (external protector) b) Auxiliary Codes A-2 and Later (90-second fill timer (low water safety)) (3W) (external protector 2.4~3.0A) (internal protector) WIRE COLOR CODE (external protector) C-100BAF Series...

  • Page 23: Performance Data

    C. Performance Data 1. C-100BAF Series APPROXIMATE ICE WATER TEMP. (ºF/ºC) AMBIENT TEMP. PRODUCTION PER 24 HR. (ºF/ºC) 50/10 70/21 90/32 70/21 80/27 90/32 lbs./day kg./day 100/38 APPROXIMATE ELECTRIC 70/21 CONSUMPTION 80/27 90/32 100/38 watts APPROXIMATE WATER 0.04 0.04 0.04 70/21 CONSUMPTION PER 24 HR.

  • Page 24: Service Diagnosis

    IV. Service Diagnosis WARNING • This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire. • Risk of electric shock. Use extreme caution and exercise safe electrical practices. •...
  • Page 25 6) Freeze Cycle – BCH, GM, FM, CR, and Comp energize. NOTICE! Some units contain a sticker that states: "The bin control heater has been disconnected. DO NOT reconnect the bin control heater." In this case, leave BCH disconnected or replace BC assembly with 3A2561A03.

  • Page 26: Auxiliary Codes A-2 And Later

    2. Auxiliary Codes A-2 and Later This diagnostic procedure is a sequence check that allows you to diagnose the electrical system and components. Before proceeding, check for correct installation, adequate water pressure (7 to 113 PSIG), and proper voltage per unit nameplate. When checking voltage (115VAC), always choose a neutral (W wire) to establish a good neutral connection.

  • Page 27: Bin Control Check

    Diagnosis – Check that UF/S and LF/S open, WCR de-energizes, and WV energizes. If UF/S and/or LF/S do not open, see "IV.D. Float Switch Check and Cleaning." If WV does not energize, check WCR terminal #2 (GY wire) to a neutral (W wire) for 115VAC. If 115VAC is not present, replace WCR.

  • Page 28: Float Switch Check And Cleaning (Auxiliary Codes A-2 And Later)

    D. Float Switch Check and Cleaning (auxiliary codes A-2 and later) 1. Float Switch Check 1) Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet. 2) Remove the upper rear panel. See Fig. 4. 3) Remove the clamp securing the drain plug, then lower the drain hose into a container.

  • Page 29: Float Switch Cleaning

    2) Remove the upper rear panel. See Fig. 4. 3) Remove F/S assembly from the reservoir cover. 4) Wipe down F/S assembly with a mixture of 1 part Hoshizaki "Scale Away" and 25 parts warm water. Rinse the assembly thoroughly with clean water.

  • Page 30: Optional Drain Pump Hs-0248

    E. Optional Drain Pump HS-0248 1. Overview As ice melts, water drains from the storage bin into DP. When DP's LF/S closes, DP energizes and pumps out the water. If water cannot be pumped out of DP due to a blocked discharge hose, bad check valve, or bad DP motor, the water level rises and UF/S closes.
  • Page 31 5) If water pumps out properly and DP then de-energizes, proceed to step 6. If water does not pump out properly and/or DP does not de-energize, follow the steps below to prime Priming Instructions a. Disconnect the icemaker's power cord from the electrical outlet, then reconnect to the electrical outlet.

  • Page 32: Float Switch Cleaning

    5) Leave F/S assembly connected to the reservoir cover and leave the float on the shaft. Wipe down F/S assembly and reservoir with a mixture of 1 part recommended cleaner Hoshizaki "Scale Away" and 25 parts warm water. 6) Rinse F/S assembly and reservoir.

  • Page 33: Diagnostic Charts

    F. Diagnostic Charts The diagnostic charts below list possible reasons for problems with ice production and shutdown. Before consulting the diagnostic charts, check for correct installation, proper voltage per unit nameplate, and adequate water supply. 1. Auxiliary Codes A-1 and Earlier No Ice Production - Possible Cause Startup 1.
  • Page 34 7. Evaporator a) Dirty. b) Damaged or defective. 8. Condenser a) Dirty. 9. Refrigerant a) Low charge or overcharged. b) Refrigerant lines or components restricted. 10. Water System a) Water leaks. Shutdown 1. Bin Control Thermostat Assembly a) Out of position. (with integrated heater) NOTICE! Some units contain a sticker that states: "The...

  • Page 35: Auxiliary Codes A-2 And Later

    2. Auxiliary Codes A-2 and Later No Ice Production - Possible Cause Startup 1. Power Supply a) Unplugged, off, blown fuse, or tripped breaker. b) Not within specifications. 2. Power Switch a) "OFF" position. b) Bad contacts. 3. Bin Control Thermostat Assembly a) Open with bin filled with ice.
  • Page 36 9. Refrigerant a) Low charge or overcharged. b) Refrigerant lines or components restricted. 10. Water System a) Water leaks. Shutdown 1. Bin Control Thermostat Assembly a) Out of position. (with integrated heater) b) Out of adjustment. See "IV.C. Bin Control Check."...

  • Page 37: Removal And Replacement Of Components

    V. Removal and Replacement of Components WARNING • This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire. • Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet before servicing.

  • Page 38: Brazing

    2. Brazing WARNING • R-134a itself is not flammable at atmospheric pressure and temperatures up to 212°F (100°C). • R-134a itself is not explosive or poisonous. However, when exposed to high temperatures (open flames), R-134a can be decomposed to form hydrofluoric acid and carbonyl fluoride both of which are hazardous.

  • Page 39: Important Notes For Component Replacement

    5) Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and purge the air from the hose. See the nameplate for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets the requirements of ARI Standard 700 (latest edition) be used.

  • Page 40: Removal And Replacement Of Evaporator Assembly Components

    C. Removal and Replacement of Evaporator Assembly Components Thumbscrew Spout Cutter (motionless) Packing Evaporator Flange Socket Head Cap Screw Evaporator Extruding Head and Condensate Upper Bearing Drain Pan Evaporator Drain Hose Auger Connection Reservoir Hose Connection Spring Retainer Socket Head Mechanical Seal Cap Screw with Washer...

  • Page 41: Upper Bearing Wear Check

    1. Upper Bearing Wear Check To ensure that the bearing inside the extruding head does not exceed the wear tolerance of .02", follow the instructions below. 1) Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet.

  • Page 42: Removal And Replacement Of Extruding Head

    2. Removal and Replacement of Extruding Head 1) Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet. 2) Close the water supply line shut-off valve. 3) Remove all ice from the storage bin. 4) While maintaining a hold on the door, remove the hinge stop pin from hinge (B).

  • Page 43: Removal And Replacement Of Auger

    3. Removal and Replacement of Auger 1) Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet. 2) Close the water supply line shut-off valve. 3) Remove all ice from the storage bin. 4) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out the bottom of the door slightly, then gently remove the door from hinge (A).

  • Page 44: Removal And Replacement Of Evaporator

    4. Removal and Replacement of Evaporator NOTICE • Always install a new drier every time the sealed refrigeration system is opened. Do not replace the drier until after all other repair or replacement has been made. • When brazing, protect the drier by using a wet cloth to prevent the drier from overheating.

  • Page 45: Removal And Replacement Of Mechanical Seal And Lower Housing

    19) Replace the tap-line valve with a proper, permanent access valve. 20) Remove the drier, then place the new drier in position. 21) Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG. 22) Use an electronic leak detector or soap bubbles to check for leaks.
  • Page 46 11) Remove the socket head cap screws securing the extruding head and evaporator flange. Remove the evaporator flange, then grasp the cutter and carefully lift out the cutter and extruding head. Grasp the top of the auger and carefully lift out the auger. When pulling out the auger, the upper part of the mechanical seal should come out with it.

  • Page 47: Removal And Replacement Of Gear Motor

    6. Removal and Replacement of Gear Motor IMPORTANT! Hoshizaki recommends that the gear motor capacitor be replaced at the same time as the gear motor. 1) Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet.

  • Page 48: Maintenance

    VI. Maintenance This icemaker must be maintained in accordance with the instruction manual and labels provided with the icemaker. Consult with your local Hoshizaki Certified Service Representative about maintenance service. WARNING • Only qualified service technicians should service this icemaker.

  • Page 49: Maintenance Schedule

    A. Maintenance Schedule The maintenance schedule below is a guideline. More frequent maintenance may be required depending on water quality, the icemaker's environment, and local sanitation regulations. Maintenance Schedule Frequency Area Task Weekly Scoop Clean the scoop using a neutral cleaner. Rinse thoroughly after cleaning. Monthly External Water Check for proper pressure and change if necessary.

  • Page 50: Cleaning And Sanitizing Instructions

    Cleaning Solution Dilute 1.6 fl. oz. (47 ml or 3.2 tbs) of Hoshizaki "Scale Away" with 1 qt. (1 l) of warm water. This is a minimum amount. Make more solution if necessary. IMPORTANT! For safety and maximum effectiveness, use the solution immediately after dilution.
  • Page 51 4) Remove the 2 screws securing the top panel, then lift it off. 5) Remove all ice from the storage bin. 6) Remove the slope from the storage bin by carefully bending it in the center and releasing it from the 2 slope shafts. 7) Remove the scoop.
  • Page 52 c) Sanitizing Solution Dilute 1.25 fl. oz. (37 ml or 2.5 tbs) of a 5.25% sodium hypochlorite solution (chlorine bleach) with 2.5 gal. (9.5 l) of warm water. This is a minimum amount. Make more solution if necessary. Using a chlorine test strip or other method, confirm that you have a concentration of about 200 ppm.
  • Page 53 12) Open the water supply line shut-off valve. Check for leaks. 13) Plug the unit back in. Move the power switch to the "ON" position and allow the icemaker to run. 14) After 30 minutes, move the power switch to the "OFF" position. Unplug the unit. 15) Pour warm water into the storage bin to melt all of the ice, then clean the storage bin liner, door liner, and door gasket with a neutral cleaner.

  • Page 54: Auxiliary Codes A-2 And Later

    Cleaning Solution Dilute 1.6 fl. oz. (47 ml or 3.2 tbs) of Hoshizaki "Scale Away" with 1 qt. (1 l) of warm water. This is a minimum amount. Make more solution if necessary. IMPORTANT! For safety and maximum effectiveness, use the solution immediately after dilution.
  • Page 55 5) Remove all ice from the storage bin. 6) Remove the slope from the storage bin by carefully bending it in the center and releasing it from the 2 slope shafts. 7) Remove the scoop. Remove the 2 thumbscrews securing the scoop holder, then remove 8) Remove the screws securing the upper rear panel, then remove it.
  • Page 56 c) Sanitizing Solution Dilute 1.25 fl. oz. (37 ml or 2.5 tbs) of a 5.25% sodium hypochlorite solution (chlorine bleach) with 2.5 gal. (9.5 l) of warm water. This is a minimum amount. Make more solution if necessary. Using a chlorine test strip or other method, confirm that you have a concentration of about 200 ppm.

  • Page 57: Storage Bin Drain

    12) Open the water supply line shut-off valve. 13) Plug the unit back in. Move the power switch to the "ON" position and allow the icemaker to run. Check for leaks. 14) After 30 minutes, move the power switch to the "OFF" position. Unplug the unit. 15) Pour warm water into the storage bin to melt all of the ice, then clean the storage bin liner, door liner, and door gasket with a neutral cleaner.

  • Page 58: Condenser

    D. Condenser Check the condenser once a year, and clean if required by following the steps below. More frequent cleaning may be required depending on location. WARNING • Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet before cleaning the condenser.

  • Page 59: Preparing The Icemaker For Periods Of Non-Use

    VII. Preparing the Icemaker for Periods of Non-Use During extended periods of non-use, extended absences, or in sub-freezing temperatures, follow the instructions below. When the icemaker is not used for two or three days under normal conditions, it is sufficient to move the power switch to the "OFF" position.

  • Page 60: Disposal

    VIII. Disposal This unit 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 personnel.

This manual is also suitable for:

C-100baf-dsC-100baf-adC-100baf-adds

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