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                        Hoshizaki America, Inc. 
Hoshizaki 
Cubelet Icemaker / Dispenser 
Models 
DCM-750BAH(-OS) 
 
DCM-750BWH(-OS) 
INSTRUCTION MANUAL 
“A Superior Degree 
of Reliability” 
www.hoshizaki.com 
 
® 
 
Issued: 5-7-2008
Revised: 4-6-2010                                                                                                                                                                                                                                                                                 
                    
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                        IMPORTANT Only qualified service technicians should install, service, and maintain the  icemaker. No installation, service, or maintenance should be undertaken  until the technician has thoroughly read this Instruction Manual. Likewise, the  owner/manager should not proceed to operate the icemaker until the installer  has instructed them on its proper operation. Failure to install, operate, and  maintain the equipment in accordance with this manual may adversely affect  safety, performance, comp
                    
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                        IMPORTANT This manual should be read carefully before the icemaker is installed and  operated. 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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                        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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                        I. Specifications A. Nameplate Rating 1. DCM-750BAH (air-cooled)   HOSHIZAKI ICE MAKER  MODEL NUMBER DCM-750BAH SERIAL NUMBER AC SUPPLY VOLTAGE 115-120/60/1  COMPRESSOR 120V 10RLA 70LRA GEAR MOTOR 120V 3FLA 1/4HP FAN MOTOR 120V 1.0FLA 50W AGITATING MOTOR 120V 1.8FLA(TOTAL) 110W DISPENSING MOTOR 120V 0.9FLA 55W OTHER 120V 0.6A MAXIMUM FUSE SIZE 20 AMPS MAX. HACR BREAKER (USA ONLY) 20 AMPS MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPS MINIMUM CIRCUIT AMPACITY 20 AMPS DESIGN PRESSURE HI-460PSI LO-290PSI
                    
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                        2. DCM-750BAH-OS (air-cooled)   HOSHIZAKI ICE MAKER  MODEL NUMBER DCM-750BAH-OS SERIAL NUMBER AC SUPPLY VOLTAGE 115-120/60/1  COMPRESSOR 120V 10RLA 70LRA GEAR MOTOR 120V 3FLA 1/4 HP FAN MOTOR 120V 1.0FLA 50W AGITATING MOTOR 120V 1.8FLA(TOTAL) 110W DISPENSING MOTOR 120V 0.9FLA 55W OTHER 120V 0.6A MAXIMUM FUSE SIZE 20 AMPS MAX. HACR BREAKER (USA ONLY) 20 AMPS MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPS MINIMUM CIRCUIT AMPACITY 20 AMPS DESIGN PRESSURE HI-460PSI LO-290PSI REFRIGERANT 404A 1 lb. 7.1 oz.
                    
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                        3. DCM-750BWH (water-cooled)   HOSHIZAKI ICE MAKER  MODEL NUMBER DCM-750BWH SERIAL NUMBER AC SUPPLY VOLTAGE 115-120/60/1  COMPRESSOR 120V 10RLA 70LRA GEAR MOTOR 120V 3FLA 1/4HP FAN MOTOR ---- ---- ---- AGITATING MOTOR 120V 1.8FLA(TOTAL) 110W DISPENSING MOTOR 120V 0.9FLA 55W OTHER 120V 0.6A MAXIMUM FUSE SIZE 20 AMPS MAX. HACR BREAKER (USA ONLY) 20 AMPS MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPS MINIMUM CIRCUIT AMPACITY 20 AMPS DESIGN PRESSURE HI-460PSI LO-290PSI REFRIGERANT 404A 1 lb. 3 oz. MOTOR-C
                    
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                        4. DCM-750BWH-OS (water-cooled)   HOSHIZAKI ICE MAKER  MODEL NUMBER DCM-750BWH-OS SERIAL NUMBER AC SUPPLY VOLTAGE 115-120/60/1  COMPRESSOR 120V 10RLA 70LRA GEAR MOTOR 120V 3FLA 1/4HP FAN MOTOR ---- ---- ---- AGITATING MOTOR 120V 1.8FLA(TOTAL) 110W DISPENSING MOTOR 120V 0.9FLA 55W OTHER 120V 0.6A MAXIMUM FUSE SIZE 20 AMPS MAX. HACR BREAKER (USA ONLY) 20 AMPS MAX. CIRC. BREAKER (CANADA ONLY) 20 AMPS MINIMUM CIRCUIT AMPACITY 20 AMPS DESIGN PRESSURE HI-460PSI LO-290PSI REFRIGERANT 404A 1 lb. 3 oz. M
                    
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                        B. Dimensions/Connections 1. DCM-750BAH 9 Unit: in. [mm]                                                                                                                                                                                                                                                                                                                                                                                                                                                            
                    
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                        2. DCM-750BAH-OS 10 Unit: in. [mm]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
                    
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                        3. DCM-750BWH 11 Unit: in. [mm]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
                    
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                        4. DCM-750BWH-OS 12 Unit: in. [mm]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
                    
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                        5. DCM-750BAH(-OS) or DCM-750BWH(-OS) on optional SD-700 or SD-750 Stand Unit: in. (mm) SD-700 SD-700 SD-700 SD-700 28-1/4" (718) 1/8" (3) 34" (864) 1/8" (3) SD-750 SD-750 28" (711) 34" (864) 13 6-1/8" SD-700 (156) 26-1/2" (673) SD-700 SD-750 80-11/16" (2050) 26-3/4" (680) SD-750 80-15/16" (2057)                                                                                                                                                                                                           
                    
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                        II. Installation and Operating Instructions  WARNING 1. This icemaker must be installed in accordance with applicable national, state,  and local regulations. 2. CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews  are securely in place after installation. Make sure that none have fallen into  the storage bin. A. Checks Before Installation • Visually inspect the exterior of the shipping container and immediately report any  damage to the carrier. Upon opening the container, any con
                    
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                        B. How to Remove Panels See Fig. 1 or Fig. 2 • Front Panel: Remove the screw. Lift up and towards you. Disconnect the connectors on  push-button models. • Top Panel: Lift up at front slightly, push rearward and lift off. • Apron Panel: Remove the screws and pull towards you. Disconnect the connectors on  optical-sensor models. • Side Panel: Remove the screws and pull towards you. DCM-750B_H  DCM-750B_H-OS  (push-button models) (optical-sensor models) Top Panel Top Panel Side Panel Side Panel Fro
                    
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                        C. Location CAUTION 1. This icemaker is not intended for outdoor use. Normal operating ambient  temperature should be within 45°F to 100°F (7°C to 38°C); Normal operating  water temperature should be within 45°F to 90°F (7°C to 32°C). Operation  of the icemaker, for extended periods, outside of these normal temperature  ranges may affect icemaker performance. 2. This icemaker will not work at sub-freezing temperatures. To prevent  damage to the water supply line, drain the icemaker if the air te
                    
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                        E. Electrical Connection  WARNING 1. Electrical connection must be hard-wired and must meet national, state, and  local electrical code requirements. Failure to meet these code requirements  could result in death, electric shock, serious injury, fire, or extensive damage  to equipment. 2. This unit requires an independent power supply. See the nameplate for  proper voltage and breaker/fuse size. Failure to use a proper breaker or fuse  can result in a tripped breaker, blown fuses, or damage to e
                    
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                        F. Water Supply and Drain Connections See Fig. 4, 5, or 6  WARNING 1. Water supply and drain connections must be installed in accordance with  applicable national, state, and local regulations. 2. Normal operating water temperature should be within 45°F to 90°F (7°C  to 32°C). Operation of the icemaker, for extended periods, outside of this  normal temperature range may affect icemaker performance. 3. To prevent damage to equipment, do not operate the icemaker when the  water supply is off, or i
                    
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                        1. Icemaker • Icemaker water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" OD  copper tubing is recommended for the icemaker water supply line. • An icemaker water supply line shut-off valve and drain valve should be installed.  • Storage bin and drip tray drain outlets are 3/4" FPT. A minimum of 3/4" OD hard pipe is  recommended for the storage bin and drip tray drain lines. Icemaker Icemaker Water Icemaker Water Supply  Supply Inlet Line Shut-Off Valve 1/2" FPT Storage Bin  
                    
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                        2. Water-Cooled Condenser a) Connection to an Open Drain System  • Condenser water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" OD  copper tubing is recommended for the condenser water supply line. • A condenser water supply line shut-off valve and drain valve should be installed. • Condenser drain outlet is 3/8" FPT. A minimum of 3/8" OD hard pipe is recommended for  the condenser drain line. • In some areas, a back flow preventer may be required in the condenser water suppl