TABLE OF CONTENTS
1 Introduction 1
1.1 Methods of Viewing and Configuring the Liebert AC8 1
1.2 Data Logs 1
1.3 Transformer Module 2
1.4 Available Alarms 2
1.5 Outside Enclosure Overview 2
1.6 Typical Configuration 3
1.7 Controller Board Overview 4
1.8 LED Indicators 8
1.9 Typical Sequence 10
2 Installation 11
2.1 Installation Considerations 11
2.1.1 Unpacking and Preliminary Inspection 11
2.2 Surface-Mounting the Liebert AC8 12
2.2.1 Mounting the Panel 12
2.3 Flush-Mounting the Liebert AC8 13
2.3.1 Mounting the Panel 14
2.4 Connect Power to the Liebert AC8 14
2.4.1 Termination and Mounting 15
2.4.2 Connecting the Battery Pack 16
2.4.3 Turning On the Liebert AC8 16
3 Wiring and Connections 17
3.1 Wiring Specifications 17
3.2 Connecting Digital Inputs and Digital Outputs 19
3.2.1 Connecting Digital Inputs 20
3.2.2 Connecting Digital Outputs 21
3.2.3 Setting the Digital Output Jumpers 21
3.2.4 Connecting Control Relay Outputs 23
3.2.5 Connecting the Emergency Power Operation (EPOP) Input 24
3.2.6 Setting the EPOP Jumper 24
3.3 Connecting Analog Inputs 25
3.3.1 Setting the 12VDC/24VDC Analog Power Jumper 26
3.3.2 Connecting the Analog Ground 26
3.4 Connecting Common Alarm Outputs 27
3.5 EIA422 Liebert SiteScan Web™ Connector 27
3.6 Communications Connections 27
3.6.1 RS232 Connector 28
3.6.2 Phone Line Connector 28
4 Overview of Menus 29
4.1 Opening Screen Overview 31
Vertiv | Liebert® AC8 User Manual | iii
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