![](/images/new-backgrounds/1146852/1468523x1.webp)
Authorized Service
For GE Zenith parts and service, call: (773)
Table of Contents
| Page |
| Page |
Introduction | . . . .12 | Sequence of Operation | . .21 |
Safety | . . . .13 | Standard Transition | .121 |
Equipment Inspection and Storage | . . . .13 | Delayed Transition | . .21 |
Final Equipment Inspection | . . . .13 | Controls Power Supply (CPS) | . .22 |
Installation | . . . .13 | Schematics, Standard & Delay | .123 |
Mounting | . . . .13 | Troubleshooting & Diagnostics | . .24 |
Power Connections | . . . .14 | Maintenance and Testing | . .25 |
Engine Start Control Connections | Inspection and Cleaning | . .25 | |
Initial Energization | Servicing | .125 | |
MX150 Microprocessor Controller | . . . .18 | Testing | .125 |
Overview | . . . .18 | Power Panel & Replacement Parts | . .26 |
LCD & Keypad | . . . .19 | Standard Transition | . .26 |
User Setting for Voltage & Frequency . . . | . . .110 | . .26 | |
Standard Features, MSTDG Option Pkg. | . .27 | ||
Standard Features, MEXEG Option Pkg. | . . . .12 | . .28 | |
Optional Accessories | . . . .13 | . .29 | |
How to Set the System Clock | . . . .14 | Delayed Transition | . .30 |
CDT One Event Timer Exerciser | . .30 | ||
CDP Clock Exerciser | . . . .16 | . .31 | |
User Setup - CFG Menu | . . . .17 | . .32 | |
User Setup - SET Menu | . . . .18 |
|
|
User Setup - System Info | . . . .19 |
|
|
Testing | . . .120 |
|
|
Standard Transition | . . .120 |
|
|
Delayed Transition | . . . .20 |
|
|
Introduction
GE Zenith Transfer Switches are used to provide a continuous source of power for lighting and other critical loads by auto- matically transferring from source 1 power to source 2 power in the event that source 1 voltage falls below preset limits.
Voltage sensing and system control is performed via a
All GE Zenith transfer switches are designed for use on emergency or standby systems, and are rated for total system or motor loads. Transfer switches are UL Listed under Standard 1008 and CSA Certified under Standard C22.2 No. 178 and IEC Listed under Standard 947.
NOTES: A protective device such as a molded case circuit breaker or fused disconnect switch MUST be installed on both sources of incoming power for circuit protection and as a disconnection device.
All references made within this manual about the term “S1” or “Source 1” relate to a Normal Power Source. All references made about the term “S2” or “Source 2” relate to an Emergency
or Alternative Power Source.