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Ice Maker
Hoshizaki
KM-650MAH, KM-650MRH
service manual
KM-650MWH water-cooled
Models:
KM-650MWH
KM-650MRH
KM-650MAH
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54 pages
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Specification
Wiring Diagrams
Default Dip Switch Settings
Harvest Timer dip switch 1
Maintenance
Control Board Check Procedure
Refrigerant Recovery
Features
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2.
KM-650MWH
(water-cooled)
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Contents
KM-650MAH KM-650MWH KM-650MRH
Hoshizaki AMERICA, INC
Contents
Page
Specifications Icemaker
KM-650MAH air-cooled
KM-650MWH water-cooled
Water Cooled Condenser
KM-650MRH remote air-cooled
Condensing Unit
URC-5F
Specifications
Model URC-5F
II. General Information Construction
KM-650MWH water-cooled
KM-650MRH remote air-cooled
Sequence of Operation
Cycle Steps Harvest Cycle Freeze Cycle One Minute
Control Board
Control Products E Control Board
Control Board Layout
Control Board
Features
Maximum Water Supply Period 6 minutes
LED Lights and Audible Alarm Safeties
Controls and Adjustments
Default Dip Switch Settings
Harvest Timer dip switch 1
Pump-Out Frequency Control dip switch 5
Control Board Check Procedure
Control Board Replacement
KM-650MAH air-cooled
KM-650MWH water-cooled
KM-650MRH remote air-cooled
Wiring Diagrams
KM-650MAH air-cooled and KM-650MWH water-cooled
Psig
Performance Data
108
680
615
IV. Service Diagnosis Minute KM Diagnostic Procedure
Diagnostic Charts
No Ice Production
Problem Possible Cause Remedy
Problem Possible Cause Remedy
Problem Possible Cause Remedy
Evaporator is Frozen Up
Low Ice Production
Abnormal Ice
Other
Problem Possible Cause Remedy
Removal and Replacement of Components
Service for Refrigerant Lines
Refrigerant Recovery
Evacuation and Recharge R-404A
Removal and Replacement of Compressor
Brazing
Removal and Replacement of Drier
Removal and Replacement of Expansion Valve
Removal and Replacement of Hot Gas Valve and Line Valve
Removal and Replacement of Evaporator
Adjustment of Water Regulating Valve Water-Cooled Model Only
Page
Removal and Replacement of Thermistor
Removal and Replacement of Fan Motor
Removal and Replacement of Inlet Water Valve
Removal and Replacement of Pump Motor
Removal and Replacement of Spray Tubes
VI. Cleaning and Maintenance Instructions
Cleaning and Sanitizing Procedures
Cleaning Procedure
Maintenance
Sanitizing Procedure Following Cleaning Procedure
Stainless Steel Exterior
Preparing the Icemaker for Long Storage
Storage Bin and Scoop
Air Filters air-cooled models only
Condenser air-cooled and remote air-cooled models only
Drain the potable water supply line
Drain the potable water tank
