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Hoshizaki America, Inc.
Hoshizaki
Modular Crescent Cuber
Models
KM-901MAH
KM-901MWH
KM-901MRH/3
SERVICE MANUAL
“A Superior Degree
of Reliability”
www.hoshizaki.com
™
Number: 73156
Issued: 4-18-2008
Revised: 6-23-2009
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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. Sh
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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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3. Controls and Adjustments ..................................................................................... 3 a) Default Dip Switch Settings ............................................................................. 3 b) Harvest Timer (S4 dip switch & ) ................................................................ 3 c) Pump-Out Timer (S4 dip switch 3 & 4) ............................................................ 33 d) Pump-Out Frequency Control (S4 dip switch 5 & 6) ........
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V. Removal and Replacement of Components ................................................................... 68 A. Service for Refrigerant Lines ...................................................................................... 68 . Refrigerant Recovery ............................................................................................ 68 . Brazing .................................................................................................................. 69 3. Evacuation an
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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. Icemaker 1a. KM-901MAH (air-cooled) Auxiliary Code T-0, U-0 AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 11.4 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *874 (396) 832 (378) 785 (356) Reference without *marks 80 842 (382) 778 (353) 736 (334) 90 832 (378) *732 (332) 687 (312) 100 826 (375) 7
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1b. KM-901MAH (air-cooled) Auxiliary Code U-1 and Later AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 11.4 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *874 (396) 832 (378) 785 (356) Reference without *marks 80 842 (382) 778 (353) 736 (334) 90 832 (378) *732 (332) 687 (312) 100 826 (375) 721 (327) 646 (293) SHAPE
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2a. KM-901MWH (water-cooled) Auxiliary Code T-0, U-0 AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 8.7A ( 5 Min. Freeze AT 104°F / WT 80°F) 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 *912 (414) 889 (403) 849 (385) Reference without *marks 80 895 (406) 860 (390) 815 (370) 90 889 (403) *835 (379) 791 (359) 100 878 (398) 825 (374) 751 (341) SHAPE OF IC
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2b. KM-901MWH (water-cooled) Auxiliary Code U-1 and Later AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 8.7A ( 5 Min. Freeze AT 104°F / WT 80°F) 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 *912 (414) 889 (403) 849 (385) Reference without *marks 80 895 (406) 860 (390) 815 (370) 90 889 (403) *835 (379) 791 (359) 100 878 (398) 825 (374) 751 (341) SHAPE
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3a. KM-901MRH (remote air-cooled) Auxiliary Code T-0, U-0 AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 11.6A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *889 (403) 859 (389) 803 (364) Reference without *marks 80 866 (393) 818 (371) 755 (343) 90 859 (389) *785 (356) 724 (328) 100 843 (382) 771 (350) 668 (303) SHAPE
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3b. KM-901MRH (remote air-cooled) Auxiliary Code U-1 and Later AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 11.6A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *889 (403) 859 (389) 803 (364) Reference without *marks 80 866 (393) 818 (371) 755 (343) 90 859 (389) *785 (356) 724 (328) 100 843 (382) 771 (350) 668 (303)
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4a. KM-901MRH3 (remote air-cooled) Auxiliary Code T-0, U-0 AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.0A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *899 (408) 874 (397) 817 (371) Reference without *marks 80 880 (399) 842 (382) 772 (350) 90 874 (397) *815 (370) 749 (340) 100 855 (388) 800 (363) 689 (313) SHAPE OF ICE Crescent Cube ICE PRODU
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4b. KM-901MRH (remote air-cooled) Auxiliary Code U-1 and Later AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.0A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *899 (408) 874 (397) 817 (371) Reference without *marks 80 880 (399) 842 (382) 772 (350) 90 874 (397) *815 (370) 749 (340) 100 855 (388) 800 (363) 689 (313) SHAPE OF ICE Crescent Cube ICE P
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B. Condenser Unit 1. URC-9F 5 Unit: mm [in.]
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Specifications MODEL: URC-9F AC SUPPLY VOLTAGE 115/60/1 (Connection to Icemaker) FAN MOTOR 115 V Total 1.3FLA 65W EXTERIOR DIMENSIONS (WxDxH) 32-3/16" x 15-11/16" x 21-15/16" (817 x 398 x 558 mm) DIMENSIONS INCLUDING LEGS (WxDxH) 34-5/16" x 18-1/8" x 36-15/16" (871 x 460 x 938 mm) EXTERIOR FINISH Galvanized Steel WEIGHT Net 81 lbs. ( 37 kg ) Shipping 92 lbs. ( 42 kg ) CONNECTIONS - ELECTRIC Permanent - Connection - REFRIGERANT Discharge Line 1-1/16"-12 UNF Fi
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II. General Information A. Construction 1. KM-901MAH (air-cooled) Spray Tubes Water Supply Inlet Hot Gas Valve Cleaning Valve Junction Box Condenser Expansion Valves Control Box Control Switch Fan Motor Float Switch Drier Water Pump Thermostatic Bin Control Auxiliary Code T-0, U-0 Compressor Mechanical Bin Control and Bracket Auxiliary Code U- and later Thermostatic Bin Control Bracket & Bulb Holder Auxiliary Code T-0, U-0 7
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2. KM-901MWH (water-cooled) Spray Tubes Water Supply Inlet Hot Gas Valve Cleaning Valve Junction Box Expansion Valves Water Regulating Valve Control Switch Control Box Float Switch Water Pump Condenser Compressor Drier Thermostatic Bin Control Auxiliary Code T-0, U-0 Mechanical Bin Control and Bracket Auxiliary Code U- and later Thermostatic Bin Control Bracket & Bulb Holder Auxiliary Code T-0, U-0 8
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3. KM-901MRH/3 (remote air-cooled) Spray Tubes Water Supply Inlet Hot Gas Valve Cleaning Valve Junction Boxes Expansion Valves Control Box Control Switch Receiver Tank Float Switch Water Pump Drier Compressor Liquid Line Valve Thermostatic Bin Control Auxiliary Code T-0, U-0 Mechanical Bin Control and Bracket Thermostatic Bin Control Auxiliary Code U- and later Bracket & Bulb Holder Auxiliary Code T-0, U-0 9
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B. Sequence of Operation 1. Sequence Cycles and Shutdown a) "E" Control Board: Auxiliary Code T-0, U-0 The steps in the sequence are as outlined below. When power is supplied, CB red "POWER OK" LED comes on. There is a 5-second delay before startup. Note that the order of the component LEDs from the outer edge of CB is , 4, 3, . (1) 1-Minute Fill Cycle LED 4 is on. WV energizes and the -minute fill cycle begins. After minute, CB checks for a closed F/S. If F/S is closed, the harvest cyc
