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Manitowoc UG Series Technician's Handbook
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Part Number: 040006847 12/19
UnderCount
er Ice Machines
UG Series
T
echnician’
s Handbook
2
Table of Contents
Default Chapter
13
Table of Contents
13
General Information
17
Model Numbers
17
This Manual Covers the Following Ice Machine
17
Models
17
How to Read a Model Number
18
Model/Serial Number Location
19
Warranty
20
Warranty Registration
20
Installation
21
General
21
Ice Machine Dimensions
21
Location of Ice Machine
22
Leveling the Ice Machine
23
Cooling of the Ice Machine
23
Water Service/Drains
24
Electrical Service
26
Voltage
26
Fuse/Circuit Breaker
26
Total Circuit Ampacity
26
Installation Checklist
28
Before Starting the Ice Machine
29
Operation
31
Component Identification
31
Ice Making Sequence of Operation
32
Initial Start-Up
32
Operational Checks
34
General
34
Cube Shape
34
Ice Cube Thickness Check
35
Maintenance
36
General
36
Cleaning/Descaling & Sanitizing Procedure
37
Exterior Cleaning
38
Detailed Descaling & Sanitizing Procedure
39
Component Removal
43
Top Cover
43
Water Curtain
44
Water Shutters
45
Water Curtain
45
Ice Chute
46
Spray Bar
47
Sump Drain Overflow Tube
48
Cleaning the Condenser
49
Air-Cooled Condenser
49
Removal from Service/Winterization
50
Air-Cooled Ice Machines
50
Troubleshooting
51
Questions to Ask the Customer
51
Ice Machine will Not Run
52
Compressor Won't Run
52
Water Pump Won't Run
56
Ice Machine Prematurely Harvests
57
Ice Machine will Not Harvest
57
Water System Checklist
58
Ice Production Check
59
Analyzing Discharge Pressure
61
Discharge Pressure High Checklist
62
Freeze Cycle Discharge Pressure Low Checklist
62
Suction Pressure High Checklist
63
Suction Pressure Low Checklist
64
Discharge Line Temperature Analysis
65
Component Check Procedures
67
Electrical Components
67
On/Off/Wash Toggle Switch
67
Bin Thermistor (T3)
68
Sump Water Thermistor (T1) & Liquid Line
70
Thermistor (T2)
70
Hot Gas Valve
77
Flammable Refrigerant Procedures
81
Servicing Requirements
81
Refrigerant Purging Requirements
82
Refrigerant Purging Procedure
83
Brazing Procedure
83
Pressure Testing
84
Evacuation
84
Refrigerant Charging
85
System Contamination Cleanup
87
Determining Severity of Contamination
87
Mild System Contamination Cleanup Procedure
89
Severe System Contamination Cleanup Procedure
90
Cycle Times/24-Hour Ice Production/Refrigerant
93
Pressure Charts
93
UGP020 Self-Contained Air-Cooled
94
UGP020 Operating Temperatures
95
UGP030 Self-Contained Air-Cooled
96
UGP030 Operating Temperatures
97
UGP040 Self-Contained Air-Cooled
98
UGP040 Operating Temperatures
99
UGP080 Self-Contained Air-Cooled
100
UGP080 Operating Temperatures
101
UGE0030A Self-Contained Air-Cooled
103
UGF0040A Self-Contained Air-Cooled
104
UGF0050A Self-Contained Air-Cooled
105
UGF0065A Self-Contained Air-Cooled
106
UGF0080A Self-Contained Air-Cooled
107
Wiring Diagrams
109
Wiring Diagram Legend
109
UGE0020A Air-Cooled
110
UGP0020A Air-Cooled
112
UGE0030A/UGF0040A/UGF0050A/UGF0065A Air-Cooled
114
UGP0030A/UGP0040A/UGP0050A Air-Cooled
116
UGF0080A Air-Cooled
118
UGP0080A Air-Cooled
120
Tubing Schematics
122
Ug0020A
122
Ug0030A/Ug0040A/Ug0065A
123
Ug0050A/Ug0080A
124
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Installation, Operation And Maintenance Manual
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Manitowoc UG Series Specifications
General
Condenser Type
Air-cooled
Type
Undercounter
Electrical
115V/60Hz/1Ph
Material
Stainless Steel
Voltage
115V
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