Hoshizaki KM-900MRH Service Manual
Modular crescent cuber
Hide thumbs
Also See for KM-900MRH:
- Service manual (358 pages) ,
- Parts list (50 pages) ,
- Instruction manual (32 pages)
Table of Contents
Advertisement
Advertisement
Table of Contents
Related Manuals for Hoshizaki KM-900MRH
Summarization of Contents
Important Safety Information
Service Technician Guidelines
Guidelines for qualified service technicians regarding manual usage and contact information.
I. Specifications
KM-900MAH Specifications
Technical details for the KM-900MAH air-cooled model.
KM-900MWH Specifications (Early Serial)
Technical details for KM-900MWH water-cooled, early serial numbers.
KM-900MWH Specifications (Late Serial)
Technical details for KM-900MWH water-cooled, later serial numbers.
KM-900MRH Specifications
Technical details for the KM-900MRH remote air-cooled model.
KM-900MRH3 Specifications
Technical details for the KM-900MRH3 remote air-cooled 3 phase model.
URC-12F Condensing Unit Specifications
Specifications for the URC-12F condensing unit.
II. General Information
Unit Construction Overview
Diagrams and descriptions of the internal construction for various models.
Controller Board Details
Information on the solid-state controller board, its features, and cautions.
Mechanical Bin Control System
Explanation of the mechanical bin control, proximity switch, and operation.
III. Technical Information
Water and Refrigerant Circuit Diagrams
Schematics illustrating water and refrigerant flow for different models.
Wiring Diagrams
Detailed wiring diagrams for various models and configurations.
Timing Chart
Graphical representation of the icemaker's operational cycles and timing.
IV. Performance Data
KM-900MAH Performance Data
Tables detailing ice production, consumption, and pressure for KM-900MAH.
KM-900MWH Performance Data (Early Serial)
Tables detailing ice production, consumption, and pressure for KM-900MWH.
KM-900MWH Performance Data (Late Serial)
Performance data for KM-900MWH with later serial numbers.
KM-900MRH Performance Data
Tables detailing ice production, consumption, and pressure for KM-900MRH.
KM-900MRH3 Performance Data
Tables detailing ice production, consumption, and pressure for KM-900MRH3.
V. Service Diagnosis
Troubleshooting: No Ice Production
Identifies causes and remedies for the icemaker failing to produce ice.
Troubleshooting: Water Supply Issues
Diagnosing problems related to continuous water supply or unit not starting.
Troubleshooting: Compressor Issues
Diagnosing compressor starting or intermittent operation problems.
Troubleshooting: Water Flow and Cycle Time
Diagnosing issues with water flow, pump start, or short freeze cycles.
Troubleshooting: Fan Motor Operation
Diagnosing fan motor not starting or not operating.
Troubleshooting: No Ice Production (All Components Run)
Diagnosing issues when all components run but no ice is produced.
Troubleshooting: Evaporator Frozen Up
Diagnosing causes of evaporator freezing and ice not falling into the bin.
Troubleshooting: Low Ice Production
Diagnosing causes for long freeze cycles or low ice output.
Troubleshooting: Abnormal Ice Formation
Diagnosing issues with small, cloudy, or irregular ice cubes.
Troubleshooting: Other Issues
Addresses icemaker not stopping, abnormal noise, and melting ice.
VI. Removal and Replacement of Components
Refrigerant System Service
Procedures for refrigerant recovery, evacuation, and recharge.
Brazing Safety and Techniques
Guidelines and safety warnings for brazing operations.
Compressor Removal and Replacement
Step-by-step guide for replacing the compressor unit.
Drier Removal and Replacement
Procedure for removing and replacing the filter drier.
Expansion Valve Removal and Replacement
Procedure for removing and replacing the expansion valve.
Hot Gas Valve and Line Valve Service
Procedures for removing and replacing hot gas and line valves.
Evaporator Removal and Replacement
Step-by-step guide for removing and replacing the evaporator.
Water Regulating Valve Service (Water-Cooled)
Procedure for removing and replacing the water regulating valve on water-cooled models.
Condensing Pressure Regulator (CPR) Service (Remote Air-Cooled)
Procedure for removing and replacing the CPR on remote air-cooled models.
Thermistor Removal and Replacement
Procedure for removing and replacing the thermistor sensor.
Fan Motor Removal and Replacement
Procedure for removing and replacing the fan motor.
Water Valve Removal and Replacement
Procedure for removing and replacing the water valve.
Pump Motor Removal and Replacement
Procedure for removing and replacing the pump motor.
Spray Tubes Removal and Replacement
Procedure for removing and replacing the spray tubes.
VII. Maintenance and Cleaning Instructions
Preparing Icemaker for Long Storage
Instructions for preparing the icemaker for extended periods of non-use.
Cleaning Procedure
Step-by-step guide for cleaning and sanitizing the icemaker unit.
General Maintenance
Routine maintenance tasks for stainless steel, storage bin, and condenser.
Need help?
Do you have a question about the KM-900MRH and is the answer not in the manual?
Questions and answers