Kohler G220 - Product Identification Information

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Product Identification Information

Transfer Switch Identification Numbers

Record the product identification numbers from the

transfer switch nameplate.

Model Designation

Serial Number

Accessory Number Accessory Description

Main Page

Product Identification Information2
Table of Contents3
Safety Precautions and Instructions5
Introduction9
List of Related Materials9
Service Assistance10
Section 1 General11
Purpose11
Components11
Nameplate11
Model Number12
Application Data12
Section 2 Operation13
Startup13
Automatic Operation14
Failure of Normal Power14
Restoration of Normal Power14
Exerciser Function15
Exerciser Switch15
Exerciser Power Requirements16
Manual Operation16
External Test Switch17
Section 3 Scheduled Maintenance19
Inspection and Service20
General Inspection20
Internal Inspections, Procedures, and Tests20
Testing22
Weekly Generator Set Exercise22
Monthly Automatic Operation Test22
Other Tests23
Service Schedule24
Section 4 Troubleshooting25
General Notes on Connections26
System Power26
AC System Voltages29
DC Controller Voltages29
Engine Start Circuit29
Exerciser Circuits30
Contactor Operation31
Mechanical Check31
Solenoid Troubleshooting31
After Solenoid Replacement31
SCN and SCE Contacts32
NR/ER Relays, Coils, and Controller Circuitry34
Controller Operation34
Emergency Source Sensing35
Normal Source Sensing36
Section 5 Drawings and Diagrams37
Section 6 Service Part Replacement41
Before and after Servicing Components42
Contactor Assembly42
Contactor Assembly Removal42
Contactor Assembly Installation42
Solenoid Assembly43
Solenoid Assembly Removal43
Disassembly, 200 Amp Models43
Reassembly, 200 Amp Models44
Solenoid Assembly Installation44
Microswitch Replacement45
100 Amp Models45
200 Amp Models46
Controller PCB Assembly46
Controller PCB Removal47
Controller PCB Installation47
Other Service Parts47
Other Service Part Removal47
Other Service Part Installation48
Section 7 Service Parts49
General Information49
Finding Parts Information49
Leads49
Common Hardware49
Contactor G22050
Controls51
Decals52
Enclosure, NEMA Type 153
Enclosure, NEMA Type 3R54
Neutral Lug, 100 Amp55
Neutral Lug, 200 Amp56
Auxiliary Switch56
Appendix A Abbreviations57
Appendix B Common Hardware Application Guidelines59
Appendix C General Torque Specifications60
Appendix D Common Hardware Identification61
Appendix E Common Hardware List62

Kohler G220 - Product Identification Information

Table of Contents

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