Vertiv Liebert APM2 User Manual

6 Single UPS Operation 101
6.1 Introduction 101
6.1.1 Precautions 101
6.1.2 Power switch 101
6.2 UPS Startup Procedures 102
6.2.1 Startup procedures in normal mode 102
6.2.2 Startup procedures in ECO mode 110
6.2.3 Startup procedures in battery mode (battery cold start) 111
6.3 Procedures for Transfer Between Operation Modes 112
6.3.1 Transfer from normal mode to battery mode 112
6.3.2 Transfer from normal mode to bypass mode 112
6.3.3 Transfer from Bypass Mode to Normal Mode 113
6.3.4 Transfer from normal mode to maintenance mode 114
6.3.5 Transfer from maintenance mode to normal mode 115
6.4 Battery Test Procedures 115
6.5 UPS Shutdown Procedures 117
6.5.1 Procedures to completely power down the UPS 117
6.5.2 Procedures for completely powering down UPS while maintaining power to load 118
6.6 EPO Procedures 118
6.7 UPS Reset Procedures after EPO 118
6.8 Automatic Restart 118
6.9 Selecting Language 119
6.10 Changing Current Date and Time 120
6.11 Control Password 121
7 Battery 123
7.1 Battery Types 123
7.1.1 Charging/discharging management 123
7.1.2 Advanced function 124
7.1.3 Battery temperature compensation 125
7.2 Battery Protection 125
7.3 Battery Balanced Voltage 126
7.4 Operation of Charger 126
7.5 Battery Cold Start 127
7.6 Safety 127
7.6.1 Hazardous battery voltage present behind covers 127
7.7 UPS Battery 130
7.8 Precautions for Installation Design 130
7.9 Battery Installation Environment and Number of Batteries 130
7.9.1 Installation environment 130
7.9.2 Fresh air volume (EN50272-2001) 130
Proprietary and Confidential ©2023 Vertiv Group Corp. iii
Vertiv™ Liebert® APM2 30 to 120 kVA Modular UPS User Manual

Vertiv Liebert APM2 Specifications

General

Brand	Vertiv
Model	Liebert APM2
Category	UPS
Language	English