02/02
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Chapter 1- General Description 9
1.1 Introduction 9
1.2 Design Concept 9
1.2.1 7400-M Module Design 9
1.2.2 Bypass supplies 10
1.2.3 UPS Power Switch Configuration 11
1.2.4 Battery Circuit Breaker 11
1.2.5 Battery Cabinet/ Racks 11
1.2.6 Battery Circuit Breaker Box 11
1.2.7 Battery temperature compensation (optional) 11
1.3 Operator Control and Display Panel 13
1.3.1 LED Indications 14
1.3.2 LCD Display 15
Chapter 2- Operating Instructions 19
2.1 Introduction 19
2.1.1 General notes 19
2.2 Procedure for switching the UPS to Power the Load from a Power off condition 21
2.3 Procedure for switching the UPS into a Maintenance Bypass condition
from normal operation 22
2.4 Procedure for Switching the UPS ON from a Maint. Power down condition 24
2.5 Procedure for completely powering down the UPS 25
2.6 Procedure for carrying out a RESET after a recognised
controlled transfer to bypass or EPO action 27
Chapter 3 - Installation Procedure 28
3.1 Introduction
3.1.1 Equipment positioning and Environmental considerations 29
3.1.2 Raised floor installation 29
3.1.3 Battery Location 30
3.2 Preliminary Checks 32
3.3 Connecting the UPS power cables 33
3.3.1 Cable entry 33
3.3.2 Cable rating 33
3.3.3 Cable connections 34
3.3.4 Safety earth 34
3.3.5 Protective devices 34
3.3.6 Cabling procedure 35
3.4. Battery Installation 39
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