I. SpeciCations
5
A. Icemaker
5
1. Dcm-500Bah
5
2. Dcm-500Bah-Os
6
3. Dcm-500Bwh
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4. Dcm-500Bwh-Os
8
Ii. General Information
9
A. Construction
9
B. Ice Making Unit
11
C. Sequence Of Operation
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1. Fill Cycle
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2. Ice Purge Cycle (60 Seconds)
12
3. Freeze Cycle
12
4. Drain Cycle
12
5. Shutdown
12
D. Control Board
14
1. Control Board Layout
15
A) Dcm-500Bah, Dcm-500Bwh
15
B) Dcm-500Bah-Os, Dcm-500Bwh-Os
16
2. Features
17
3. Controls And Adjustments
18
4. Control Board Check Procedure
18
E. Float Switch
20
Iii. Technical Information
21
A. Water Circuit And Refrigeration Circuit
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B. Wiring Diagrams
23
1. Dcm-500Bah, Dcm-500Bwh
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2. Dcm-500Bah-Os, Dcm-500Bwh-Os
24
C. Sequence Of Electrical Circuit – Ice Making
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1. Fill Cycle
25
2. Ice Purge Cycle
26
3. Freeze Cycle
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4. 12 Hour Drain Cycle / Drain Switch
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5. Shutdown
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6. Low Water Safety
30
7. High Pressure Switch
31
D. Sequence Of Electrical Circuit – Dispensing
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1. Continuous Dispense
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2. Portion Dispense
33
E. Performance Data
34
1. Dcm-500Bah(-Os)
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2. Dcm-500Bwh(-Os)
35
Iv. Service Diagnosis
36
A. Diagnostic Procedure
36
B. Ice Production Check
37
C. Diagnostic Charts
38
1. No Ice Production
38
2. Low Ice Production
41
3. Other
42
4. Dispensing
43
5. Opti Serve (Os) Sensors
44
V. Removal And Replacement Of Components
46
A. Service For Refrigerant Lines
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1. Refrigerant Recovery
46
2. Brazing
46
3. Evacuation And Recharge (R-404A)
47
B. Removal And Replacement Of Compressor
48
C. Removal And Replacement Of Expansion Valve
49
D. Removal And Replacement Of Evaporator Assembly Components
50
1. Upper Bearing Wear Check
51
2. Removal And Replacement Of Extruding Head
51
3. Removal And Replacement Of Auger
52
4. Removal And Replacement Of Evaporator
52
5. Removal And Replacement Of Mechanical Seal And Lower Housing
54
6. Removal And Replacement Of Gear Motor
55
E. Removal And Replacement Of Self-Contained Air-Cooled Condenser
56
F. Removal And Replacement Of Water-Cooled Condenser
57
G. Removal And Replacement Of Water Regulating Valve - Water-Cooled Model Only
58
H. Adjustment Of Water Regulating Valve - Water-Cooled Model Only
59
I. Removal And Replacement Of Fan Motor
59
J. Removal And Replacement Of Inlet Or Dispensing Water Valve
60
K. Removal And Replacement Of Drain Valve
60
L. Removal And Replacement Of Dispensing System
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1. Dispensing Auger And Agitator
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2. Dispensing Or Agitating Motor
61
Vi. Cleaning And Maintenance
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A. Cleaning And Sanitizing Instructions
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1. Water System
64
A) Cleaning Solution
64
B) Cleaning Procedure
64
C) Sanitizing Solution
65
D) Sanitizing Procedure - Following Cleaning Procedure
65
2. Dispensing Components
65
A) Cleaning Solution
65
B) Sanitizing Solution
65
C) Cleaning And Sanitizing Procedure
65
B. Maintenance
67
C. Preparing The Icemaker For Long Storage
68
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