icetro IM-0750-AC - Technician's Handbook Manual

166 pages

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Revision Date: 1/24/22

IM-Series

Air/Water/Remote Ice Machines

Technician’s Handbook

Main Page

Table of Contents10
General Information16
How to Read a Model Number16
How to Read a Serial Number17
Ice Cube Sizes18
Model Numbers19
Installation20
Ice Deflector20
Location of Ice Machine21
Clearance Requirements21
Ice Machine Heat of Rejection22
Installation on a bin23
Ice Machine on a Dispenser Installation23
Lineset Applications24
Remote Condenser25
Calculating Allowable Lineset Distance26
Calculating Line Set Distance27
Tightening Remote Fittings28
Remote Ice Machine Usage with Non-Icetro Multi-Circuit Condensers29
Headmaster Valve30
Refrigerant Charge31
Remote Condenser Internal Volume32
Visual Inspection Checklist33
Water System Checklist34
Maintenance36
Cleaning and Sanitizing36
General36
Cleaning/Sanitizing Procedure37
Preventative Maintenance Cleaning37
Procedure37
Exterior Cleaning37
Cleaning/Sanitizing Procedure38
Cleaning Procedure38
Sanitizing Procedure40
Parts Removal for Cleaning/Sanitizing42
Removal from Service/Winterization44
Air-Cooled Ice Machines44
Water-Cooled Ice Machines45
Operation49
Operational Checks49
General49
Ice Thickness Check50
FND Timeouts51
Sequence of Operation52
Self Contained Air or Water Cooled52
Energized Parts Chart Self Contained Models56
Remote Condenser58
Energized Parts Chart Remote Models62
Troubleshooting64
Er_364
Er_1165
Er_1265
Er_1365
Er_1466
Er_1566
Er_1666
Er_167
Er_1767
Er_1867
Troubleshooting Error Codes68
Er_168
Er_369
Er_1170
Er_1271
Er_1372
Er_1473
Er_1574
Er_1675
Er_1776
Er_1877
Ice Production Check78
Ice Formation Pattern80
Testing the Expansion Valve82
Hot Gas Valve Analysis83
Discharge Line Temp Analysis85
High Checklist86
Low Checklist87
Suction Pressure High Checklist88
Suction Pressure Low Checklist89
Water Regulating Valve90
Final Analysis91
Harvest Problems92
Component Check Procedures94
Electrical Components94
Control Board (PCB)94
Main Fuse99
Bin Switch100
Water Level Control Circuitry103
Ice Thickness Probe (Initiates Harvest)108
High Pressure (HPCO) Cutout Control112
Fan Cycle Control114
Thermistors115
Compressor Electrical Diagnostics116
Diagnosing Start Components118
Refrigeration Components119
Headmaster119
Harvest Pressure Regulating (HPR) System Remote Condenser Only123
Water Regulating Valve126
Refrigerant Recover/Evacuation127
Self-Contained Model Procedure127
Remote Condenser Model Procedure131
System Contamination Clean-Up137
Determining Severity of Contamination137
Clean-Up Procedure139
Replacing Pressure Controls Without Removing Refrigerant Charge142
Liquid Line Filter Driers143
Total System Refrigerant Charge144
Cycle Times/24-Hour Ice Production/Refrigerant Pressure Charts146
IM0350A(22) Series147
IM0460A(22) Series148
IM0460W Series148
IM0550A(22) Series150
IM0550W Series150
IM0680/0750A Series152
IM1100A/W Series153
IM1100R Series154
Wiring Diagram156
Wiring Diagram157
PCB Layout158
PCB Dip Switches159
Refrigeration Schematic160
Self-Contained Air or Water Cooled160
Remote Condenser Models160

icetro IM-0750-AC - Technician's Handbook Manual

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