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Hoshizaki
KM-501MAH, KM-501MRH, KM-501MWH service manual
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Contents
Main
Hoshizaki
Hoshizaki America, Inc.
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CONTENTS
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I. Specications A. Icemaker
1. KM-501MAH (air-cooled)
Note: We reserve the right to make changes in specications and design without prior
2. KM-501MWH (water-cooled)
Note: We reserve the right to make changes in specications and design without prior
3. KM-501MRH (remote air-cooled)
Note: We reserve the right to make changes in specications and design without prior
B. Condensing Unit
1. URC-6F
SPECIFICATIONS
MODEL: URC-6F
II. General Information A. Construction
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B. Sequence of Operation
KM-501MAH, KM-501MWH, KM-501MRH Sequence Flow Chart and Component Operation
4. Pump-Out
Cycle Steps
2. Harvest Cycle 3. Freeze Cycle
Fill Cycle
C. Control Board
Control Products "E" Control Board
Control Board
Part Number 2A1410-01 (factory); 2A1410-02 (service) Type HOS-001A (Control Products - 10 Pin)
1. Control Board Layout
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1. Pressure data is recorded at 5 minutes into freezing cycle. The data not in bold
2. We reserve the right to make changes in specications and design without prior
D. Performance Data
1. KM-501MAH (air-cooled)
2. KM-501MWH (water-cooled)
1. Pressure data is recorded at 5 minutes into freezing cycle. The data not in bold
2. We reserve the right to make changes in specications and design without prior
3. KM-501MRH (remote air-cooled)
1. Pressure data is recorded at 5 minutes into freezing cycle. The data not in bold
2. We reserve the right to make changes in specications and design without prior
IV. Service Diagnosis A. 10-Minute KM Diagnostic Procedure
B. Diagnostic Charts
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2. Evaporator is Frozen Up
3. Low Ice Production
4. Abnormal Ice
5. Other
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V. Removal and Replacement of Components
A. Service for Refrigerant Lines
B. Brazing DANGER
C. Removal and Replacement of Compressor
D. Removal and Replacement of Drier
E. Removal and Replacement of Expansion Valve
WARNING
F. Removal and Replacement of Hot Gas Valve and Line Valve
2.
G. Removal and Replacement of Evaporator
H. Removal and Replacement of Water Regulating Valve - Water Cooled Model Only
I. Adjustment of Water Regulating Valve - Water-Cooled Model Only
Fig. 1
K. Removal and Replacement of Thermistor
Fig. 2
L. Removal and Replacement of Fan Motor
M. Removal and Replacement of Inlet Water Valve
N. Removal and Replacement of Pump Motor
O. Removal and Replacement of Spray Tubes
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Fig. 4
B. Maintenance
C. Preparing the Icemaker for Long Storage WARNING
Fig. 5