Table Of Contents - Hoshizaki Modular Cubelet Serenity Series Service Manual

This manual should be read carefully before the appliance is serviced. Read
the warnings and guidelines contained in this manual carefully as they provide
essential information for the continued safe use, service, and maintenance of the
appliance. Retain this manual for any further reference that may be necessary.
Important Safety Information ................................................................................................. 5
I. Construction and Water/Refrigeration Circuit Diagram ....................................................... 8
A. Construction .................................................................................................................. 8
1. Icemaker .................................................................................................................. 8
2. Condensing Unit ...................................................................................................... 9
3. Icemaking Unit ....................................................................................................... 10
B. Water/Refrigeration Circuit Diagram .............................................................................11
II. Sequence of Operation and Service Diagnosis ............................................................... 12
A. Sequence of Operation Flow Chart ............................................................................. 12
1. Operation Flow Chart ............................................................................................. 12
2. Shutdown Flow Chart ............................................................................................ 13
B. Service Diagnosis ....................................................................................................... 14
C. Control Board Check ................................................................................................... 22
D. Bin Control Check ....................................................................................................... 27
E. Power Switch and Control Switch ................................................................................ 30
F. Float Switch Check and Cleaning ................................................................................ 31
G. Diagnostic Tables ........................................................................................................ 33
III. Controls and Adjustments ............................................................................................... 36
A. Control Board .............................................................................................................. 36
1. Control Board Layout ............................................................................................. 37
2. LED Lights and Audible Alarm Safeties ................................................................. 38
3. Ice Purge Cycle Bypass ......................................................................................... 38
B. Controls and Adjustments ........................................................................................... 39
1. Default Dip Switch Settings .................................................................................... 39
2. BC1 (Infrared Sensor) Shutdown Delay (S1 dip switch 1, 2, 3) ............................ 40
3. Drain Frequency Control (S1 dip switch 4) ............................................................ 40
4. Continuous Dispensing Timer (S1 dip switch 5 & 6) .............................................. 40
5. Bin Control Selector (S1 dip switch 7) ................................................................... 41
6. BC2 (Mechanical Backup) Shutdown Delay (S1 dip switch 8) ............................... 41
7. Shutdown Sequence (S1 Dip Switch 9) ................................................................. 41
8. Alarm Selection (S1 Dip Switch 10) ....................................................................... 41
IV. Refrigeration Circuit and Component Service Information.............................................. 42
A. Refrigeration Circuit Service Information .................................................................... 42
B. Component Service Information .................................................................................. 45
V. Maintenance .................................................................................................................... 53
VI. Disposal .......................................................................................................................... 55
IMPORTANT
CONTENTS
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