Welbilt Koolaire KY0170A User Manual

Name: Welbilt Koolaire KY0170A
Brand: Welbilt
Rating: 5 (1 reviews)

136 pages

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Part Number STH047 Rev01 10/18

Undercounter Ice Machines

Technician’s Handbook

This manual is updated as new information and models are

released. Visit our website for the latest manual.

www.kool-aire.com

Table of Contents9
General Information13
Model Numbers13
How to Read a Model Number14
Accessories14
Bin Caster14
Cleaner and Sanitizer14
Model/Serial Number Location15
Ice Machine Warranty Information15
Installation17
Location of Ice Machine17
Ice Machine Clearance Requirements18
Ice Machine Heat of Rejection18
Leveling the Ice Machine19
Electrical Requirements20
Voltage20
Fuse/Circuit Breaker20
Total Circuit Ampacity20
Electrical Specifications21
Air-Cooled Ice Machine21
Water-Cooled Ice Machines21
Water Service/Drains22
Water Supply22
Water Inlet Lines22
Drain Connections22
Water Supply and Drain Line Sizing23
Connections23
Cooling Tower Applications24
Component Identification25
Evaporator Compartment25
Ice Machine Inspection27
Exterior Cleaning27
Cleaning the Condenser27
Interior Cleaning and Sanitizing29
Removal from Service/Winterization42
Operation45
Initial Start-Up or Start-Up after Automatic45
Shut-Off45
Freeze Sequence45
Harvest Sequence46
Automatic Shut-Off46
Energized Parts Chart47
Operational Checks49
Troubleshooting53
Diagnosing an Ice Machine that will Not Run53
Diagnosing Ice Thickness Control Circuitry54
Ice Production Check57
Installation and Visual Inspection Checklist59
Water System Checklist60
Ice Formation Pattern61
Safety Limit Feature63
Analyzing Discharge Pressure70
Analyzing Suction Pressure72
Harvest Valve76
Comparing Evaporator Inlet/Outlet80
Temperatures80
Discharge Line Temperature Analysis81
Refrigeration Component Diagnostic Chart83
Procedure84
Final Analysis85
Refrigeration Component Diagnostic Chart86
Ice Quality Is Poor - Cubes Are Shallow89
Incomplete or White89
Freeze Cycle Is Long, Low Ice Production90
Ice Machine Runs and no Ice Is Produced91
Component Check Procedures93
Main Fuse93
Bin Switch94
Diagnosing Start Components97
Capacitor97
Relay97
ON/OFF/WASH Toggle Switch98
Ice Thickness Probe99
Ice Thickness Check100
Compressor Electrical Diagnostics101
Fan Cycle Control103
High Pressure Cutout (HPCO) Control104
Filter-Driers105
Refrigerant Recovery/Evacuation106
Refrigerant Re-Use Policy107
Recovery and Recharging Procedures109
System Contamination Cleanup112
Mild System Contamination Cleanup114
Procedure114
Severe System Contamination Cleanup115
Procedure115
Replacing Pressure Controls Without117
Removing Refrigerant Charge117
KF250/K270 Condenser Fan Motor Access119
Component Specifications121
Main Fuse121
Bin Switch121
ON/OFF/WASH Toggle Switch121
Fan Control Cycle121
High Pressure Cutout (HPCO) Control121
Filter-Driers121
Total System Refrigerant Charge122
Cycle Times, 24 Hr. Ice Production and Refrigerant Pressure Charts123
KF0150A Self-Contained Air-Cooled124
K170A Self-Contained Air-Cooled125
KF0250 Self-Contained Air-Cooled126
K270 Self-Contained Air-Cooled127
Wiring Diagrams129
KF150/K170 Wiring Diagram130
KF250/K270 Wiring Diagram132
Electronic Control Board134
KF150/K170/KF250/K270 Tubing Schematic134

Welbilt Koolaire KY0170A User Manual

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Related product manuals

Brand	Welbilt
Model	Koolaire KY0170A
Category	Ice Maker
Language	English