Name: Motak PKM0335
Brand: Motak
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PKU0155/PKM0335/PKM0425/PKM0535 MODELS

Part Number: 000016427 Rev 00 01/2021

Ice Machines

Service Manual

PKU0155/PKM0335/PKM0425/PKM0535 MODELS

For technical Assistance please call - MoTak Service @ 1-800.839.6754

Table of Contents9
Requirements - Cleaning - Operation13
Model Numbers13
Ice Machine Warranty Information13
Warranty13
Warranty Registration13
Location of Ice Machine14
Ice Machine Clearance Requirements14
Ice Machine Heat of Rejection14
Electrical Requirements15
Water Service/Drains16
Water Supply16
Water Inlet Lines16
Drain Connections16
Water Supply and Drain Line Sizing/Connections17
Descaling and Sanitizing17
General17
Detailed Descaling and Sanitizing Procedure17
Toggle Switch Operation17
Sanitizing Procedure19
Remove Parts for Cleaning/Descaling20
Remedial Cleaning Procedure24
Cleaning the Condenser Filter25
Cleaning the Condenser25
Removal from Service/Winterization25
Air-Cooled Models25
Ice Making Sequence of Operation26
Pkm0335/Pkm0425/Pkm053526
Control Board Timers PKM0335/PKM0425/PKM053527
Safety Limits PKM0335/PKM0425/PKM053527
Energized Parts Chart PKM0335/PKM0425/PKM053529
Operational Checks PKM0335/PKM0425/PKM053530
Ice Thickness Check PKM0335/PKM0425/PKM053530
Minimum/Maximum Slab Weights Pkm0335/Pkm0425/Pkm053530
Ice Making Sequence of Operation31
Pku015531
Energized Parts Chart PKU015533
Operational Checks PKU015534
Siphon System PKU015534
Water Level PKU015534
Water Level Check PKU015535
Ice Thickness Check PKU015535
Minimum/Maximum Slab Weight PKU015536
PKM0335/PKM0425/PKM0535 Models37
Control Board Test Mode37
Diagnosing an Ice Machine that will Not Run38
Ice Machine Does Not Cycle into Harvest When the Harvest Float Is Down/Closed38
Ice Machine Cycles into Harvest before the Harvest Float Is Down/Closed40
Ice Production Check41
Installation/Visual Inspection Checklist42
Water System Checklist43
Ice Formation Pattern44
Safety Limits45
Safety Limit 145
Safety Limit 245
Safety Limit 346
Safety Limit Checklist47
Analyzing Discharge Pressure50
Discharge Pressure High Checklist51
Freeze Cycle Discharge Pressure Low Checklist51
Analyzing Suction Pressure52
Suction Pressure High Checklist54
Suction Pressure Low Checklist54
Harvest Valve55
Harvest Valve Analysis56
Comparing Evaporator Inlet/Outlet Temperatures58
Discharge Line Temperature Analysis59
Refrigeration Component Diagnostics60
Procedure60
Final Analysis61
Refrigeration Component Diagnostic Chart62
PKU0155 Model65
Troubleshooting an Ice Machine will Not Run65
Troubleshooting Ice Thickness Control Circuitry66
Ice Machine Does Not Cycle into Harvest When Water Contacts the Ice Thickness Control Probe66
Ice Machine Cycles into Harvest before Water Contact with the Ice Thickness Probe68
Ice Production Check69
Installation and Visual Inspection Checklist70
Water System Checklist70
Ice Formation Pattern72
Safety Limit Feature74
Safety Limits74
Safety Limit #174
Safety Limit #274
Safety Limit Stand-By Mode74
Safety Limit Checklist77
Analyzing Discharge Pressure80
Discharge Pressure High Checklist81
Freeze Cycle Discharge Pressure Low Checklist81
Analyzing Suction Pressure82
Suction Pressure High Checklist84
Suction Pressure Low Checklist84
Harvest Valve85
Harvest Valve Analysis86
Comparing Evaporator Inlet/Outlet Temperatures89
Discharge Line Temperature90
Refrigeration Component Diagnostic Chart91
Procedure91
Final Analysis92
Refrigeration Component Diagnostic Chart PKU015593
Ice Quality Is Poor - Cubes Are Shallow, Incomplete or White95
Freeze Cycle Is Long, Low Ice Production96
Ice Machine Runs and no Ice Is Produced97
Specifications99
Main Fuse99
Bin Switch100
Float Switch101
Compressor Electrical Diagnostics103
Fan Cycle Control105
High Pressure Cutout (HPCO) Control107
Refrigerant Recovery/Evacuation108
Definitions108
Refrigerant Re-Use Policy109
Recovery and Recharging Procedures111
System Contamination Cleanup113
Determining Severity of Contamination113
Cleanup Procedure115
Severe System Contamination Cleanup Procedure116
Liquid Line Filter Driers117
Replacing Pressure Controls Without Removing Refrigerant Charge118
Refrigerant Amount119
Ice Machine Normal Operation Charts119
PKU0155 Self Contained Ice Machine120
PKM0335 Modular Ice Machine121
PKM0425 Modular Ice Machine122
PKM0535 Modular Ice Machine123
Wiring Diagram124
PKU0155 Wiring Diagram125
PKM0335/PKM0425/PKM0535 Wiring Diagram126
Electronic Control Board127
Control Board Schematic PKM0335/PKM0425/PKM0535127
Control Board Schematic PKU0155128
Refrigeration Tubing Schematic129

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Motak PKM0335 Specifications

General

Brand	Motak
Model	PKM0335
Category	Ice Maker
Language	English

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