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STH042 7/15
Manitowoc STH042 7/15 User Manual
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Part Number STH042 7/15
39
3.
Remove the Ice Damper
•
Remove thumbscrew fr
om bin switch co
ver
.
•
Support ice damper and then pull bin switch
cover and ic
e damper forward to remov
e.
1. REMOVE
THUMBSCREW
2. SUPPORT ICE DAMPER
THEN
SLIDE RIGHT SIDE FORW
ARD T
O REMOVE
38
40
Table of Contents
Default Chapter
3
Safety Notices
3
Table of Contents
9
General Information
13
Model Numbers
13
How to Read a Model Number
14
Ice Machine Warranty Information
15
Commercial Warranty Coverage
15
Residential Warranty Coverage
17
How to Obtain Warranty Service
19
Installation
21
Location of Ice Machine
21
Ice Machine Clearance Requirements
22
Ice Machine Heat of Rejection
22
Leveling the Ice Machine
23
Electrical Requirements
24
Electrical Specifications
25
Water Service/Drains
27
Water Supply
27
Water Inlet Lines
27
Preventative Maintenance Cleaning
28
Drain Connections
28
Cooling Tower Applications
28
Water Supply and Drain Line Sizing/Connections
29
Maintenance
31
Interior Cleaning and Sanitizing
31
General
31
Cleaning and Sanitizing Procedure
31
Touch Pad Operation
32
Remove Parts for Cleaning
36
Preventative Maintenance Cleaning
41
Ice Machine Inspection
42
Cleaning the Condenser
43
Removal from Service/Winterization
44
Bin Removal
45
Operation
47
Touch Pad Features
47
On/Off
47
Delay
48
Clean
48
Bin Full
49
Service
49
Ice Making Sequence of Operation
50
Control Board Timers
52
Safety Limits
53
Energized Parts Chart
55
Operational Checks
57
Ice Thickness Check
57
Ice Thickness Adjustment
57
Troubleshooting
59
Control Board Test Mode
59
Operating Ice Machine with bin and Touch Pad
59
Removed
59
Diagnosing an Ice Machine that will Not Run
60
Ice Machine Does Not Cycle into Harvest When
61
Switch
61
Water Loses Contact with the Harvest Float
63
Ice Machine Cycles into Harvest before Water Loses Contact with the Harvest Float Switch
63
Ice Production Check
65
Installation/Visual Inspection Checklist
67
Water System Checklist
68
Ice Formation Pattern
69
Safety Limit Feature
71
Analyzing Discharge Pressure
78
Analyzing Suction Pressure
80
Harvest Valve
84
Comparing Evaporator Inlet/Outlet
88
Temperatures
88
Discharge Line Temperature Analysis
89
Refrigeration Component Diagnostics
91
Procedure
92
Final Analysis
93
Refrigeration Component Diagnostic Chart
94
Component Check Procedures
97
Main Fuse
97
Bin Switch
98
Touch Pad
100
Float Switch
102
Compressor Electrical Diagnostics
104
Fan Cycle Control
106
High Pressure Cutout (HPCO) Control
107
Filter-Driers
108
Refrigerant Recovery/Evacuation
109
Definitions
109
Refrigerant Re-Use Policy
110
Recovery and Recharging Procedures
112
System Contamination Cleanup
115
Determining Severity of Contamination
115
Mild System Contamination Cleanup
117
Procedure
117
Severe System Contamination Cleanup
118
Procedure
118
Replacing Pressure Controls Without Removing Refrigerant Charge
119
Total System Refrigerant Charge
121
Cycle Times, 24 Hr. Ice Production and Refrigerant Pressure Charts
123
U0140 Self-Contained Air-Cooled
124
U0140 Self-Contained Water-Cooled
125
U0190 Self-Contained Air-Cooled
126
U0240 Self-Contained Air-Cooled
127
U0240 Self-Contained Water-Cooled
128
U0310 Self-Contained Air-Cooled
129
U0310 Self-Contained Water-Cooled
130
Wiring Diagrams
131
Wiring Diagrams U140/U190/U240 Wiring Diagram
132
Electronic Control Board
134
Tubing Schematic - U0140
135
Tubing Schematic - U0190/U0240/U0310
136
4
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Manitowoc STH042 7/15 Specifications
General
Brand
Manitowoc
Model
STH042 7/15
Category
Ice Maker
Language
English
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