TABLE OF CONTENTS
1 Important Safety Instructions 1
1.1 Product Safety 1
1.2 Disclaimer 1
1.3 Safety Precautions 2
2 Overview 5
2.1 Features 5
2.2 Design Concept 5
2.2.1 System design 5
2.2.2 Bypass 9
2.2.3 System control principle 9
2.2.4 UPS power supply switch configuration 10
2.2.5 Battery circuit breaker (BCB) 13
2.3 Parallel System 14
2.3.1 Parallel system features 14
2.3.2 Parallel system requirements 14
2.4 Operation Modes 14
2.5 Battery Management System (BMS) 19
3 Mechanical Installation 21
3.1 Precautions 21
3.2 Transportation 21
3.3 Tools 22
3.4 Unpacking 23
3.5 Pre-installation Inspection 26
3.6 Environmental Requirement 26
3.6.1 UPS location selection 26
3.6.2 Battery location selection 26
3.6.3 Storage 27
3.7 Mechanical Requirement 27
3.7.1 Composition 27
3.7.2 Moving the cabinet 27
3.7.3 Clearance 28
3.7.4 Cable access mode 28
3.8 Installation Drawings 29
4 Electrical Installation 33
4.1 Wiring of Power Cable 33
4.1.1 System configuration 33
4.1.2 Maximum steady state AC and DC currents 33
Proprietary and Confidential ©2023 Vertiv Group Corp. i
Vertiv™ Liebert® APM2 30 to 120 kVA Modular UPS User Manual
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