Viking VUIM150, Service Notebook

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TABLE OF CONTENTS
1. INTRODUCTION
Product Specifications……………………………………………………………… 4
Serial Number Logic ……………………………………………………………….. 5
Before Servicing……………………………………………………………………. 5
After Servicing ……………………………………………………………………… 6
Basic Refrigeration Tools …………………………………………………………… 6
Installation ………………………………………………………………………….. 6
Electrical Requirements……………………………………………………………… 7
Water Requirements ………………………………………………………………… 7
Gravity Drain ……………………………………………………………………….. 8
Drain Pump…………………………………………………………………………… 9
Operation in ON position……………………………………………………………… 9
Operation in CLEAN position………………………………………………………… 11
2. SEALED SYSTEM
Introduction……………………………………………………………………………. 11
Low Side Leaks ……………………………………………………………………….. 12
High Side Leaks ………………………………………………………………………. 12
Restricted Capillary Tube……………………………………………………………. 12
Access Valve………………………………………………………………………….. 12
Pressure and Temperatures……………………………………………………………. 13
Recharging……………………………………………………………………………. 14
3. SEALED SYSTEM COMPONENTS
Hot Gas Valve………………………………………………………………………… 16
Evaporator…………………………………………………………………………….. 18
Compressor……………………………………………………………………………. 21
Condenser……………………………………………………………………………… 22
4. VALVES
Drain Valve……………………………………………………………………………. 23
Water Valve…………………………………………………………………………… 24
5. SYSTEM COMPONENTS
Condenser Fan…………………………………………………………………………. 25
Thermostats…………………………………………………………………………….. 26
Grid-cutter Transformer………………………………………………………………… 29
6. INTERIOR COMPONENTS
Grid Cutter……………………………………………………………………………… 30
Reservoir………………………………………………………………………………. 31
Circulation Pump……………………………………………………………………… 32
7. WIRING
Wiring Diagram……………………………………………………………………….. 33
Point to Point Wire Layout……………………………………………………………. 34
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