User's Manual
Table Of Contents
- CONTENTS
- I. Specifications
- 1. Icemaker
- KM-1300SAH
- KM-1300SWH
- KM-1300SRH
- KM-1300SAH3
- KM-1300SWH3
- KM-1300SRH3
- 2. Condensing Unit
- URC-12F
- II. General Information
- 1. Construction
- [a] KM-1300SAH, KM-1300SAH3
- [b] KM-1300SWH, KM-1300SWH3
- [c] KM-1300SRH, KM-1300SRH3
- 2. Controller Board
- [a] Solid-State Control
- [b] Controller Board
- [c] Sequence
- [d] Controls and Adjustments
- [e] Checking the Controller Board
- III. Technical Information
- 1. Water Circuit and Refrigerant Circuit
- [a] KM-1300SAH, KM-1300SAH3
- [b] KM-1300SWH, KM-1300SWH3
- [c] KM-1300SRH, KM-1300SRH3
- 2. Wiring Diagrams
- [a] KM-1300SAH, KM-1300SWH
- [b] KM-1300SRH
- [c] KM-1300SAH3, KM-1300SWH3
- [d] KM-1300SRH3
- 3. Timing Chart
- 4. Performance Data
- [a] KM-1300SAH
- [b] KM-1300SWH
- [c] KM-1300SRH
- [d] KM-1300SAH3
- [e] KM-1300SWH3
- [f] KM-1300SRH3
- IV. Service Diagnosis
- 1. No Ice Production
- 2. Evaporator is Frozen Up
- 3. Low Ice Production
- 4. Abnormal Ice
- 5. Other
- V. Removal and Replacement of Components
- 1. Service for Refrigerant Lines
- [a] Refrigerant Recovery
- [b] Evacuation and Recharge [R-404A]
- 2. Brazing
- 3. Removal and Replacement of Compressor
- 4. Removal and Replacement of Drier
- 5. Removal and Replacement of Expansion Valve
- 6. Removal and Replacement of Hot Gas Valve and Line Valve
- 7. Removal and Replacement of Evaporator
- 8. Removal and Replacement of Water Regulating Valve - Water-Cooled Model Only
- 9. Adjustment of Water Regulating Valve - Water-Cooled Model Only
- 10. Removal and Replacement of Condensing Pressure Regulator (C.P.R.) -
- 11. Removal and Replacement of Thermistor
- 12. Removal and Replacement of Fan Motor
- 13. Removal and Replacement of Water Valve
- 14. Removal and Replacement of Pump Motor
- 15. Removal and Replacement of Spray Tubes
- VI. Maintenance and Cleaning Instructions
- 1. Preparing the Icemaker for Long Storage
- 2. Cleaning and Sanitizing Procedures
- [a] Cleaning Procedure
- [b] Sanitizing Procedure - Following Cleaning Procedure
- 3. Maintenance

46
Problem Possible Cause Remedy
[5] d) Pump Motor 1. Motor winding opened. 1. Replace.
2. Bearing worn out. 2. Replace.
3. Wiring to pump motor. 3. Check for loose
connection or open, and
replace.
4. Defective capacitor. 4. Replace.
5. Defective or bound
impeller.
5. Replace and clean.
6. Mechanical seal worn out. 6. Check and replace.
e) Controller Board 1. Defective. 1. See "II.2[e] Checking the
Controller Board."
[6] a) Fan Motor 1. Motor winding opened. 1. Replace.
2. Bearing worn out. 2. Replace.
3. Wiring to fan motor. 3. Check for loose
connection or open, and
replace.
4. Defective capacitor. 4. Replace.
5. Fan blade bound. 5. Check and replace.
b) Controller Board 1. Defective. 1. See "II.2[e] Checking the
Controller Board."
[7] a) Refrigerant 1. Undercharged. 1. Check for leaks and
recharge.
2. Air or moisture trapped. 2. Replace drier and
recharge.
b) Compressor 1. Defective valve. 1. Replace.
c) Hot Gas Solenoid
Valve
1. Continues to open in
freeze cycle.
1. Check and replace.
d) Line Valve 1. Continues to close in
freeze cycle.
1. Check and replace.
e) Water Solenoid Valve 1. Water solenoid valve is
wide open during freeze.
1. Check for water leaks with
icemaker off.
f) Water Supply Line
[Water-cooled model
only]
1. Condenser water pressure
too low or off and pressure
control opens and closes
frequently.
1. Check and get
recommended pressure.
Fan Motor will not
start, or is not
operating.
All components run,
but no ice is
produced.
Continued from
previous page.