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Manitowoc NEO User Manual
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Part Number STH042 3/14
61
Ice Machine Cycl
es Into Harvest Before
W
ater loses Cont
act with the Harvest
Float Switch
St
e
p
1
Disconnect power
to the
ice machine, remove
the electrical panel to allow viewing of the control
board lights and pull the w
ire connector for the harvest
float switch
through the bulkhead and disconnect.
WIRE CONNECT
ORS ARE LOCA
TED BEHIND BULKHEAD
PULL THROUGH GROMMET TO DISCONNECT
ICE THICKNE
SS FLOA
T
SWITCH & BRACKET
HARVEST FLOA
T
SWITCH & BRACKET
60
62
Table of Contents
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
Residential Warranty Coverage
17
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
Drain Connections
28
Cooling Tower Applications
28
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
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
51
Safety Limits
52
Energized Parts Chart
54
Operational Checks
56
Ice Thickness Check
56
Ice Thickness Adjustment
56
Troubleshooting
57
Control Board Test Mode
57
Operating Ice Machine with bin and Touch Pad Removed
57
Diagnosing an Ice Machine that will Not Run
58
Ice Machine Does Not Cycle into Harvest When Water Loses Contact with the Harvest Float Switch
59
Ice Machine Cycles into Harvest before Water
61
Ice Production Check
63
Installation/Visual Inspection Checklist
64
Water System Checklist
65
Ice Formation Pattern
66
Safety Limit Feature
68
Electrical System
71
Refrigeration System
72
Analyzing Discharge Pressure
75
Analyzing Suction Pressure
77
Suction Pressure Low Checklist
80
Harvest Valve
81
Comparing Evaporator Inlet/Outlet
85
Temperatures
85
Discharge Line Temperature Analysis
86
Refrigeration Component Diagnostics
88
Final Analysis
90
Refrigeration Component Diagnostic Chart
91
Component Check Procedures
95
Main Fuse
95
Bin Switch
96
Touch Pad
98
Float Switch
100
Compressor Electrical Diagnostics
102
Compressor Drawing Locked Rotor
103
Compressor Drawing High Amps
103
Fan Cycle Control
104
High Pressure Cutout (HPCO) Control
105
Filter-Driers
106
Refrigerant Recovery/Evacuation
108
Definitions
108
Refrigerant Re-Use Policy
109
Recovery and Recharging Procedures
111
System Contamination Cleanup
114
Determining Severity of Contamination
114
Mild System Contamination Cleanup Procedure
116
Severe System Contamination Cleanup Procedure
117
Replacing Pressure Controls Without Removing Refrigerant Charge
118
Total System Refrigerant Charge
120
Cycle Times, 24 Hr. Ice Production and Refrigerant Pressure Charts
121
U0140 Self-Contained Air-Cooled
122
U0140 Self-Contained Water-Cooled
123
U0190 Self-Contained Air-Cooled
124
U0240 Self-Contained Air-Cooled
125
U0240 Self-Contained Water-Cooled
126
U0310 Self-Contained Air-Cooled
127
U0310 Self-Contained Water-Cooled
128
Wiring Diagrams
129
Wiring Diagram - All Models
130
Electronic Control Board
131
Tubing Schematic - U0140
132
Tubing Schematic - U0190/U0240/U0310
133
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Manitowoc NEO Specifications
General
Brand
Manitowoc
Model
NEO
Category
Ice Maker
Language
English
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