Hoshizaki MODULAR CRESCENT CUBER KM-650MWH User Manual download pdf (Page 4)

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

1 2 3 4 5 6 7 8 9 ... 53 54

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Hoshizaki MODULAR CRESCENT CUBER KM-650MWH User Manual Page 4

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