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Hoshizaki America, Inc.
Hoshizaki
Self-Contained Cubelet
Models
C-100BAF-AD
C-100BAF-ADDS
SERVICE MANUAL
“A Superior Degree
of Reliability”
www.hoshizaki.com
Number: 73180
Issued: 10-6-2010
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IMPORTANT Only qualified service technicians should install, service, and maintain the icemaker. No service or maintenance should be undertaken until the technician has thoroughly read this Service Manual. Failure to service and maintain the equipment in accordance with this manual may adversely affect safety, performance, component life, and warranty coverage. Hoshizaki provides this manual primarily to assist qualified service technicians in the service and maintenance of the icemaker.
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Important Safety Information Throughout this manual, notices appear to bring your attention to situations which could result in death, serious injury, or damage to the unit. WARNING Indicates a hazardous situation which could result in death or serious injury. CAUTION Indicates a situation which could result in damage to the unit. IMPORTANT Indicates important information about the use and care of the unit. WARNING This icemaker should be destined only to the use for which it has been e
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IMPORTANT This manual should be read carefully before the icemaker is serviced or maintenance operations are performed. Only qualified service technicians should install, service, and maintain the icemaker. Read the warnings contained in this booklet carefully as they give important information regarding safety. Please retain this booklet for any further reference that may be necessary. CONTENTS Important Safety Information ....................................................................
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C. Removal and Replacement of Evaporator Assembly Components ............................. 30 1. Upper Bearing Wear Check .................................................................................. 31 2. Removal and Replacement of Extruding Head ...................................................... 32 3. Removal and Replacement of Auger ..................................................................... 32 4. Removal and Replacement of Evaporator ......................................
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I. Specifications A. C-100BAF-AD, C-100BAF-ADDS 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) 50 70 90 lbs./day ( kg/day ) 70 *92 (42) 89 (40) 84 (38) Reference without *marks 80 81 (37) 71 (32) 66 (30) 90 66 (30) *62 (28) 57 (26) 100 55 (25) 54 (24) *49 (22) SHAPE OF ICE Cubelet ICE QUALITY Approx. 90% APPROXIMATE STORAGE CAPACITY 29 lbs. (
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II. General Information A. Construction 1. Icemaker Ice Discharge Opening Bin Control Thermostat Bulb Slope Front Panel Air-Cooled Condenser and Condenser Fan Motor Power Switch Louver Control Box Gear Motor Protector (External Overload) Reset Switch Front C-100BAF-AD Shown Bin Control Thermostat Top Panel Float-Operated Water Valve Water Reservoir Suction Temperature Safety Evaporator Assembly Upper Rear Panel Gear Motor Compressor Lower Rear Panel Drier Rear Fig. 1 C-100BAF-AD Shown 7
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2. Ice Making Unit Cutter (motionless) Allen Head Cap Screw Evaporator Flange Extruding Head and Upper Bearing Auger Cylinder Insulation Gear Motor Mechanical Seal O-Ring Housing and Lower Bearing Allen Head Cap Screw Spline Coupling with Washer Hex Head Bolt with Washer Fig. 2 8
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B. Sequence of Operation This icemaker utilizes a thermostatic bin control to switch the gear motor, fan motor, and compressor on and off as needed. This icemaker utilizes a float-operated water valve in the water reservoir to allow water into the icemaker as needed. After the power switch is placed in the "ON" position, the sequence is as follows: 1. Freeze Cycle GM, FM, CR, and Comp energize. As the water in the evaporator cools, ice starts forming within 4 to 6 minutes. This time frame d
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III. Technical Information A. Water Circuit and Refrigeration Circuit 1. C-100BAF Series Float-Operated Water Valve Water Inlet Water Level Water Reservoir Evaporator Assembly Water Supply Gear Overflow Hose Motor Capillary Tube Drier Condenser Condenser Fan Motor Suction Temperature Safety Suction Discharge Compressor Fig. 3 10
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B. Wiring Diagram 1. C-100BAF Series (external overload 2.4~3.0A) (3W) (internal) (external) 2. C-100BAF Series with Optional Drain Pump HS-0248 (external overload 2.4~3.0A) (3W) (internal) (external) 11
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3. Sequence Wiring Diagram a) Freeze Cycle Power supplied. Gear motor, fan motor, compressor relay, and compressor energize. The float-operated water valve allows water into the reservoir as needed to continue the ice making process. (external overload 2.4~3.0A) (3W) (internal) (external) C-100BAF Series 12
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b) Bin Control Thermostat Shutdown Ice fills storage bin to level of bin control thermostat. Bin control thermostat opens. Gear motor, fan motor, compressor relay, and compressor de-energize. (external overload 2.4~3.0A) (3W) (internal) (external) C-100BAF Series 13
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c) Low Water/Freeze-Up Safety Shutdown If the water supply is interrupted or a freeze-up condition occurs, the decrease in suction line temperature causes the suction temperature safety to open and shut down the icemaker. See the table below for suction temperature safety cut-out/cut-in temperatures. Suction Temperature Safety Cut-out 23.9°F±2.7°F (-4.5°C±1.5°C) Cut-in 29.0°F±2.7°F (-1.5°C±1.5°C) (external overload 2.4~3.0A) (3W) (internal) (external) C-100BAF Series 14
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d) Gear Motor Protector (external overload) Shutdown If gear motor amperage exceeds 2.4~3.0 amps, the gear motor protector (external overload) operates independently to turn off the gear motor. The gear motor external overload can be manually reset by pressing the switch on the control box. (external overload 2.4~3.0A) (3W) (internal) (external) C-100BAF Series 15
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e) Optional Drain Pump HS-0248 Safety Shutdown If the water level in the drain pump reservoir rises high enough to close the drain pump upper float switch, the drain pump safety interrupts power to the icemaker. When the water level lowers enough to open the drain pump upper float switch, power is restored to the icemaker. The pump motor remains energized as long as the drain pump lower float switch is closed. (external overload 2.4~3.0A) (3W) (internal) (external) C-100BAF Series 16
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C. Performance Data 1. C-100BAF-AD, C-100BAF-ADDS APPROXIMATE ICE WATER TEMP. (ºF/ºC) AMBIENT TEMP. PRODUCTION PER 24 HR. (ºF/ºC) 50/10 70/21 90/32 70/21 92 42 89 40 84 38 80/27 81 37 71 32 66 30 90/32 66 30 62 28 57 26 lbs./day kg./day 100/38 55 25 54 24 22 49 APPROXIMATE ELECTRIC 70/21 308 309 297 CONSUMPTION 80/27 310 310 312 90/32 313 310 316 100/38 316 316 316 watts APPROXIMATE WATER
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IV. Service Diagnosis WARNING 1. This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire. 2. Risk of electric shock. Use extreme caution and exercise safe electrical practices. 3. Moving parts (e.g., fan blade) can crush and cut. Keep hands clear. 4. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after the unit is serviced. Make sure that none have fallen int
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5) Shutdown (bin full) – Ice fills storage bin to level of BC. BC opens. GM, FM, CR, and Comp de-energize. Diagnosis: When the icemaker is running, hold ice in contact with BC bulb. If the components fail to de-energize, check BC. 6) Move the power switch to the "OFF" position and unplug the unit from the electrical outlet. 7) Make any repairs necessary, then replace the removed parts in the reverse order of which they were removed. 8) Plug the unit back in. Move the power switch to the "ON"
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C. Diagnostic Charts 1. No Ice Production Problem Possible Cause Remedy [1] The icemaker will not a) Power Supply 1. Off, blown fuse, or 1. Turn on, replace, or reset. start. tripped breaker. 2. Power cord 2. Plug into outlet. unplugged. 3. Loose connection. 3. Tighten. 4. Bad contacts. 4. Check for continuity and replace. 5. Not within 5. Refer to nameplate and specifications. correct. b) Power Switch 1. "OFF" position. 1. Move to "ON" position. (Control Box) 2. Bad contacts. 2. Check for con
