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Hoshizaki
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Ice Maker
Hoshizaki
DCM 300BAH(-OS) DCM-300BAH-OS, High-Pressure Switch, Cut-out, 412± 21 0 PSIG, Cut-in
Models:
DCM 300BAH(-OS)
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Specs
F. Diagnostic Charts
V. Removal and Replacement of Components
Maintenance
Complete and detailed explanation of the problem
B. Diagnostic Procedure
Evaporator Assembly
b Cleaning Procedure
E. Float Switch Check and Cleaning
Refrigerant Recovery
Page 19
Image 19
2.
DCM-300BAH-OS
*
*
High-Pressure
Switch
Cut-out
412±
21
0
PSIG
Cut-in
327±21 PSIG
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Page 20
Page 19
Image 19
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Contents
HoshizakiHoshizaki America, Inc
Attn Hoshizaki Technical Support Department
Complete and detailed explanation of the problem
Phone 1-800-233-1940 770 Fax
618 Highway 74 South Peachtree City, GA
CONTENTS
1. Float Switch Check
IV. Service Diagnosis
B. Diagnostic Procedure
E. Float Switch Check and Cleaning
Indicates a situation which could result in damage to the
Important Safety Information
Indicates a hazardous situation which could result in death or
serious injury
Do not place objects on top of the icemaker
1. DCM-300BAH-OS
I. Specifications A. Icemaker
1. Icemaker
II. General Information A. Construction
2. Icemaking Unit
b Ice Purge Cycle
B. Sequence of Operation
1. Sequence Cycles and Shutdown
a Fill Cycle
Sequence Flow Chart
DCM-PB and DCM-OS Control Board Sequence Flow Chart DCM-300BAH-OS
C. Control Board
Control Board
DCM-PB Push Button Model Control Board
1. Control Board Layout
a DCM-300BAH
Part Number 2A2649-01
DCM-OS Opti-Serve Model Control Board
b DCM-300BAH-OS
Control Board
1. Power Switch
D. Power Switch, Control Switch, and Dispense Mode Switch
2. LED Lights and Components
b DRAIN
2. Control Switch
3. Dispense Mode Switch
a ICE
Water Level Evaporator Gear Motor High-Pressure Switch
III. Technical Information A. Water Circuit and Refrigeration Circuit
Inlet Water Valve Water Supply Float Switch
Reservoir Overflow Fan Motor Condenser Access Valve
1. DCM-300BAH
B. Wiring Diagrams
412± 21 0 PSIG
2. DCM-300BAH-OS
High-Pressure Switch
Cut-out
1. DCM-300BAH-OS
C. Performance Data
B. Diagnostic Procedure
IV. Service Diagnosis
A. Ice Production Check
Page
Page
check DV solenoid continuity
Page
4 5VDC Output Checks
C. Control Board Check
Ice Dispense Controls
b Opti-Serve Model - ICE and AM LEDs are on
Water Dispense Switch/Water Dispense Sensor
Page
D. Bin Control Check
1. Float Switch Check
E. Float Switch Check and Cleaning
2. Float Switch Cleaning
1. No Ice Production
F. Diagnostic Charts
Refill
Ice Purge Cycle
Shutdown
Freeze Cycle
Water Dispense Push Button
2. Ice/Water Dispense
Ice Dispense Push Button
Ice Dispense Opti-Serve
3c. Water Dispense
3. Opti-Serve OS Sensors
3a. Ice Dispense Continuous
3b. Ice Dispense Portion
A. Service for Refrigerant Lines
V. Removal and Replacement of Components
2. Brazing
1. Refrigerant Recovery
3. Evacuation and Recharge R-404A
B. Important Notes for Component Replacement
Evaporator Assembly
1. Upper Bearing Wear Check
2. Removal and Replacement of Extruding Head
4. Removal and Replacement of Evaporator
3. Removal and Replacement of Auger
8 Disconnect the inlet and outlet tubing
4 Recover the refrigerant and store it in an approved container
3 Remove the apron panel, then remove the left side panel
7 Remove the evaporator bracket and disconnect the water hoses
5b. Lower Housing
5. Removal and Replacement of Mechanical Seal and Lower Housing
5a. Mechanical Seal
6. Removal and Replacement of Gear Motor
8. Dispense or Agitating Motor
7. Dispense Auger and Agitator
VI. Cleaning and Maintenance
1. Water System
A. Cleaning and Sanitizing Instructions
a Cleaning Solution
b Cleaning Procedure
d Sanitizing Procedure - Following Cleaning Procedure
c Sanitizing Solution
a Cleaning Solution
b Sanitizing Solution
c Cleaning and Sanitizing Procedure
2. Dispense Components
Water Dispense Nozzle Ice Dispense Spout Spout Cover
Area
B. Maintenance
Maintenance Schedule
Frequency
C. Preparing the Icemaker for Periods of Non-Use
VII. Disposal