4
III. Technical Information ...................................................................................................... 29
A. Water Circuit and Refrigeration Circuit ........................................................................ 29
B. Wiring Diagram ............................................................................................................ 30
1. Thermostatic Bin Control ....................................................................................... 30
2. Mechanical Bin Control ......................................................................................... 31
C. Performance Data ....................................................................................................... 32
1. KM-320MAH-E ....................................................................................................... 32
2. KM-515MAH-E ...................................................................................................... 33
3. KM-650MAH-E ...................................................................................................... 34
IV. Service Diagnosis ........................................................................................................... 35
A. Diagnostic Procedure .................................................................................................. 35
B. Control Board Check ................................................................................................... 39
C. Bin Control Check ....................................................................................................... 40
1. Thermostatic Bin Control Check ............................................................................ 40
2. Mechanical Bin Control Check and Cleaning ....................................................... 41
a) Mechanical Bin Control Check .......................................................................... 41
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. Diagnostic Charts ........................................................................................................ 46
1. No Ice Production ................................................................................................... 46
2. Freeze-Up .............................................................................................................. 47
3. Low Ice Production ................................................................................................ 49
V. Replacement of Components .......................................................................................... 50
A. Service for Refrigerant Lines ....................................................................................... 50
1. Refrigerant Recovery ............................................................................................. 50
2. Brazing .................................................................................................................. 51
3. Evacuation and Recharge (R-404A) ...................................................................... 52
B. Important Notes for Component Replacement ............................................................ 53
VI. Cleaning and Maintenance ............................................................................................ 54
A. Cleaning and Sanitizing Instructions ........................................................................... 54
1. Cleaning Procedure ................................................................................................ 55
2. Sanitizing Procedure - Following Cleaning Procedure ........................................... 56
B. Maintenance ................................................................................................................ 57
C. Preparing the Icemaker for Periods of Non-Use .......................................................... 58
VII. Disposal ......................................................................................................................... 59
