Hoshizaki KM-650MRH, KM-650MAH, KM-650MWH service manual

III. Technical Information	23
A. Water Circuit and Refrigeration Circuit	23
1. KM-650MAH (air-cooled)	23
2. KM-650MWH (water-cooled)	24
3. KM-650MRH (remote air-cooled)	25
B. Wiring Diagrams	26
1. KM-650MAH (air-cooled) and KM-650MWH (water-cooled)	26
2. KM-650MRH (remote air-cooled)	27
C. Performance Data	28
1. KM-650MAH (air-cooled)	28
2. KM-650MWH (water-cooled)	29
3. KM-650MRH (remote air-cooled)	30
IV. Service Diagnosis	31
A. 10-Minute KM Diagnostic Procedure	31
B. Diagnostic Charts	32
1. No Ice Production	32
2. Evaporator is Frozen Up	36
3. Low Ice Production	37
4. Abnormal Ice	37
5. Other	37
V. Removal and Replacement of Components	39
A. Service for Refrigerant Lines	39
1. Refrigerant Recovery	39
2. Evacuation and Recharge (R-404A)	39
B. Brazing	40
C. Removal and Replacement of Compressor	40
D. Removal and Replacement of Drier	41
E. Removal and Replacement of Expansion Valve	42
F. Removal and Replacement of Hot Gas Valve and Line Valve	43
G. Removal and Replacement of Evaporator	44
H. Removal and Replacement of Water Regulating Valve - Water Cooled Model Only...	44
I. Adjustment of Water Regulating Valve - Water-Cooled Model Only	45
J. Removal and Replacement of Headmaster (Condensing Pressure Regulator - C.P.R.)
- Remote Air-Cooled Model Only	46
K. Removal and Replacement of Thermistor	47
L. Removal and Replacement of Fan Motor	47
M. Removal and Replacement of Inlet Water Valve	48
N. Removal and Replacement of Pump Motor	48
O. Removal and Replacement of Spray Tubes	49
VI. Cleaning and Maintenance Instructions	50
A. Cleaning and Sanitizing Procedures	50
1. Cleaning Procedure	51
2. Sanitizing Procedure - Following Cleaning Procedure	52
B. Maintenance	52
C. Preparing the Icemaker for Long Storage	53