GE Entelli-Switch 250 manual Authorized Service, Table of Contents, Introduction

Page 2

Authorized Service

For GE parts and service, call: (773) 299-6600

Table of Contents

 

Page

 

Page

Introduction

. . . .12

Testing

.120

Safety

. . . .13

Introduction

.120

Equipment Inspection and Storage . . . .

. . . .13

Test Options

. .20

Final Equipment Inspection

. . . .13

Standard Transition

.121

Installation

. . . .14

Delayed Transition

. .21

Engine Start Control Connections

. . . .14

Closed Transition

. .22

Initial Energization

. . .14-5

Emergency Service Procedure

 

Control Connections

. . . . .6

for Extended Parallel Time

. .23

Entelli-Switch 250 Microprocessor Controller

. . . .17

Sequence of Operation

. .24

Overview

. . . .17

Standard Transition

.124

LCD & Keypad

. . . .18

Delayed Transition

. .24

User Setting for Voltage & Frequency . .

. . . .19

Closed Transition

. .25

Accessory Group Packages

. . . .10

Relay/Transformer (R/T Box)

. .26

Accessory Definitions

. .11-14

Standard

.126

How to Set the System Clock

. . . .14

Delay

.127

CDT One Event Timer Exerciser

. . . .15

Schematics

.128

CDP Clock Exerciser

. . . .16

Troubleshooting & Diagnostics

. .29

User Setup - CFG Menu

. . . .17

Maintenance and Testing

. .30

User Setup - SET Menu

. . . .18

Inspection and Cleaning

. .30

User Setup - System Info

. . . .19

Servicing

.130

 

 

Testing

.130

Introduction

GE Zenith Transfer Switches are used to provide a continuous source of power for lighting and other critical loads by automatically 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 state-of-the-art microcontroller located on the cabinet door. It is designed to give highly accurate control of the transfer switch system.

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.

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Contents GE Zenith Controls Introduction Authorized ServiceTable of Contents Final Equipment Inspection Safety / InstallationEquipment Inspection and Storage Initial Energization Installation cont’dEngine Start Control Connections Initial Energization cont’d R E T E S TInstallation cont’d Entelli-Switch 250 Controller Entelli-Switch 250 ControllerEntelli-Switch 250 Controller cont’d LCD & KeypadUser Setting for Voltage & Frequency Accessory Group Packages Stds Exes Cons Sens Spes PsgsCalibrate Accessory DefinitionsA62 Accessory Definitions cont’d S13P Approximate out of phase degreesS12P S14How to Set the System Clock Press More and scroll to SET System Clock using the More keyPress Bypass Exer CDT One Event Timer ExerciserPress Exer Cancl Press Start Timer Test Press Cancl BpassCDP Clock Exerciser Load / No-Load Clock ExerciserEntelli-Switch 250 User Setup CFG Menu Turn options on or OFF via keypad through the CFG menuEntelli-Switch 250 User Setup SET Menu Change adjustable values through the SET menuEntelli-Switch 250 User Setup System Info View System DataTest Options TestingIntroduction Auto PositionDelayed Transition Testing cont’dATS Testing Standard TransitionRe-Transfer with Closed Transition Closed TransitionInitiating a Closed Transition Test Location Emergency Service Procedure for Extended Parallel TimeAuto Location Sequence of Operation ATS TypeSequence of Operation cont’d Amp Molded Power Section Transformer Usage see Figure Relay/Transformer R/T BoxDelayed / Closed Transition Relay/Transformer R/T Box cont’dStandard Transition R/T Box Schematic Delayed / Closed Transition R/T Box SchematicTroubleshooting and Diagnostics General TroubleshootingTesting Maintenance and TestingInspection and Cleaning ServicingPage GE Zenith Controls
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