TABLE OF CONTENTS
1 Liebert PSA4 Overview 5
1.1 Controls and Indicators 6
1.2 Installation 7
1.3 Setup and Start-up 7
1.4 UPS Operation 8
1.5 Alarms 8
1.5.1 On Battery 8
1.5.2 Low Battery Warning 8
1.5.3 Weak/Bad Battery 8
1.5.4 Overload 8
1.5.5 UPS Fault 9
1.6 Troubleshooting 9
1.7 Maintenance and Battery Replacement 9
1.7.1 Battery Charging 9
1.7.2 Precautions 9
1.7.3 Battery Replacement Precaution 10
1.7.4 Information for the Protection of the Environment 10
1.7.5 Battery Replacement Procedure 10
1.7.6 Specifications 12
Appendices 15
Appendix 1: Technical Support 15
Vertiv | Liebert® PSA4™ Installer/User Guide | 3
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