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III. Technical Information ...................................................................................................... 25
A. Water Circuit and Refrigeration Circuit ........................................................................ 25
1. KM-1301SAH-E (air-cooled) ................................................................................... 25
2. KM-1301SWH-E (water-cooled) ............................................................................. 26
3. KM-1301SRH-E (remote air-cooled) ...................................................................... 27
B. Wiring Diagrams .......................................................................................................... 28
1. Auxiliary Code T-0, U-0 ......................................................................................... 28
a) KM-1301SAH-E (air-cooled) ............................................................................. 28
2. Auxiliary Code U-1 and Later ................................................................................ 29
a) KM-1301SAH-E (air-cooled) ............................................................................ 29
b) KM-1301SWH-E (water-cooled) ...................................................................... 30
c) KM-1301SRH-E (remote air-cooled) ................................................................. 31
C. Performance Data ....................................................................................................... 32
1. KM-1301SAH-E (air-cooled) ................................................................................... 32
2. KM-1301SWH-E (water-cooled) ............................................................................ 33
3. KM-1301SRH-E (remote air-cooled) ...................................................................... 34
IV. Service Diagnosis ........................................................................................................... 35
A. Diagnostic Procedure ................................................................................................. 35
B. Control Board Check ................................................................................................... 39
C. Bin Control Check ....................................................................................................... 40
1. Thermostatic Bin Control Check: KM-1301SAH-E .................................................. 40
2. Mechanical Bin Control Check and Cleaning: KM-1301SWH-E, KM-1301SRH-E . 40
a) Mechanical Bin Control Check ......................................................................... 40
b) Mechanical Bin Control Cleaning ..................................................................... 42
D. Float Switch Check and Cleaning ............................................................................... 43
1. Float Switch Check ................................................................................................ 43
2. Float Switch Cleaning ............................................................................................ 44
E. Thermistor Check ........................................................................................................ 45
F. Adjustment of Water Regulating Valve (water-cooled model) ...................................... 45
G. Diagnostic Charts ....................................................................................................... 46
1. No Ice Production ................................................................................................... 46
2. Freeze Up .............................................................................................................. 48
3. Low Ice Production ................................................................................................ 50
V. Replacement of Components .......................................................................................... 51
A. Service for Refrigerant Lines ....................................................................................... 51
1. Refrigerant Recovery ............................................................................................. 51
2. Brazing .................................................................................................................. 52
3. Evacuation and Recharge (R-404A) ...................................................................... 52
B. Important Notes for Component Replacement ............................................................ 54
VI. Cleaning and Maintenance ............................................................................................. 55
A. Cleaning and Sanitizing Instructions ........................................................................... 55
1. Cleaning Procedure ................................................................................................ 55
2. Sanitizing Procedure - Following Cleaning Procedure ........................................... 57
B. Maintenance ................................................................................................................ 58
C. Preparing the Icemaker for Long Storage ................................................................... 58