Hoshizaki C-100BAF-AD, Service Manual

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CONTENTS
Important Safety Information ................................................................................................. 3
I. Specifications ...................................................................................................................... 6
II. General Information ........................................................................................................... 7
A. Construction .................................................................................................................. 7
1. Icemaker .................................................................................................................. 7
2. Ice Making Unit ........................................................................................................ 8
B. Sequence of Operation ................................................................................................. 9
1. Freeze Cycle ............................................................................................................ 9
2. Bin Control Thermostat Shutdown ........................................................................... 9
III. Technical Information ...................................................................................................... 10
A. Water Circuit and Refrigeration Circuit ........................................................................ 10
B. Wiring Diagram .............................................................................................................11
1. C-100BAF Series ....................................................................................................11
2. C-100BAF Series with Optional Drain Pump HS-0248 ...........................................11
3. Sequence Wiring Diagram ..................................................................................... 12
a) Freeze Cycle ....................................................................................................... 12
b) Bin Control Thermostat Shutdown ...................................................................... 13
c) Low Water/Freeze-Up Safety Shutdown ............................................................. 14
d) Gear Motor Protector (external overload) Shutdown .......................................... 15
e) Optional Drain Pump HS-0248 Safety Shutdown ............................................... 16
C. Performance Data ....................................................................................................... 17
IV. Service Diagnosis ........................................................................................................... 18
A. Ice Production Check .................................................................................................. 18
B. Diagnostic Procedure .................................................................................................. 18
C. Diagnostic Charts ....................................................................................................... 20
1. No Ice Production ................................................................................................... 20
2. Low Ice Production ................................................................................................ 22
3. Other ...................................................................................................................... 23
D. Optional Drain Pump HS-0248 .................................................................................... 24
1. Overview ................................................................................................................ 24
2. Float Switch Cleaning ............................................................................................ 24
V. Removal and Replacement of Components .................................................................... 26
A. Service for Refrigerant Lines ....................................................................................... 26
1. Refrigerant Recovery ............................................................................................. 26
2. Brazing .................................................................................................................. 27
3. Evacuation and Recharge (R-134a) ...................................................................... 27
B. Removal and Replacement of Compressor ................................................................. 28
IMPORTANT
This manual should be read carefully before the icemaker is serviced or
maintenance operations are performed. Only qualified service technicians
should install, service, and maintain the icemaker. Read the warnings contained
in this booklet carefully as they give important information regarding safety.
Please retain this booklet for any further reference that may be necessary.