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Battery Installation
Liebert
®
NX
™
23
4.0 BATTERY INSTALLATION
4.1 Introduction
If using multiple sets of batteries connected in parallel to provide the required battery backup run
times, fit each set with an isolating device to permit working on one of the battery sets while leaving
the others in service and providing backup protection.
When replacing batteries, replace with the same manufacturer and type, or equivalent. See your
Emerson representative for a list of approved batteries.
4.2 Safety
Special care should be taken when working with the batteries associated with the Liebert NX
™
system equipment. When all batteries are connected together, the battery terminal voltage may
exceed 480V and is POTENTIALLY LETHAL.
WARNING
Risk of electric shock. Can cause injury, property damage and death.
Special care should be taken when working with the batteries associated with this equipment.
Batteries are always live. Battery terminal voltage will exceed 480VDC and is potentially
lethal.
In addition to the hazard of electric shock, gas produced by batteries can be explosive and
sulfuric acid can cause severe burns.
Batteries should be installed, serviced and replaced only by properly trained and qualified
service personnel trained in safe battery handling methods and who have the correct PPE
(Personal Protection Equipment) and tools.
The following precautions should be observed when working with the batteries:
• Eye protection should be worn to prevent injury from electrical arcs.
• Remove rings, watches and all other metal objects.
• Use only tools with insulated handles.
• Wear rubber gloves and boots.
• When replacing batteries, replace them with the same type and number of batteries or bat-
tery packs.
• Do not dispose of batteries in a fire. The batteries may explode.
• Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It is
toxic.
• Never lay metal objects of any type on top of the batteries.
• Disconnect the charging source before connecting or disconnecting battery terminals.
• Determine whether the battery is grounded. If the battery is grounded, remove source of
the ground. Contact with any part of a grounded battery can result in electrical shock. The
likelihood of such shock can be reduced if such grounds are removed during installation and
maintenance.
!
CAUTION
Risk of explosion and fire. Can cause property damage, injury and death.
To reduce the risk of fire, connect only to a circuit provided with correct amperes maximum
branch circuit overcurrent protection (see Table 12) in accordance with the National Electric
Code, ANSI/NFPA 70.
NOTE
The maximum available fault current from the battery supply is 8500A and the DC voltage
rating of the battery supply overcurrent protective device that is to be installed near the battery
supply must be at least 600VDC.
- 2
- TABLE OF CONTENTS 3
- 7.0 LIEBERT BDC 4
- SAVE THESE INSTRUCTIONS 11
- 2Liebert 12
- Battery Cabinet Precautions 13
- 4Liebert 14
- GLOSSARY OF SYMBOLS 15
- 1.0 INTRODUCTION 16
- 2.0 INSTALLATION 17
- 2.3 Preliminary Checks 18
- 2.4 UPS Location 18
- Battery Location 19
- Final Position 19
- 2.6 Mechanical Considerations 20
- 2.6.4 Optional Cabinets 21
- Installation 22
- 12 Liebert 22
- 3.0 ELECTRICAL CONNECTIONS 23
- 3.1.2 UPS Input Configuration 24
- 3.1.3 Cabling Guidelines 24
- 3.1.4 Cable Connections 25
- 3.1.5 Safety Ground 25
- 3.1.6 Protective Devices 25
- 3.1.7 Cabling Procedure 26
- Common Input Connections 26
- Dual Input Connections 26
- Frequency Converter Mode 27
- 3.2 Control Cables 28
- 3.3 Dry Contacts 30
- 3.3.4 Output Dry Contacts 31
- EPO - NO 32
- EPO - NC 32
- 4.0 BATTERY INSTALLATION 33
- 4.3.1 Battery Cabinets 34
- 4.4 Non-Standard Batteries 36
- 4.5 BCB Shunt Trip 37
- 5.0 OPTIONS 38
- LBS Cable 39
- 5.2.1 General 40
- 480V, 3W 41
- System Input 41
- System Output 41
- 5.2.3 Operating Principles 42
- Redundancy Paralleling 42
- 5.2.4 Operation Modes Summary 42
- 5.3.2 Cabinet Installation 43
- 5.3.3 Preliminary Checks 43
- 5.3.4 Power Cables 43
- 5.3.5 Parallel Control Cables 43
- Auxiliary Dry Contact Cables 44
- 6.0 UPS SPECIFICATIONS 46
- Table 8 UPS terminal 47
- 6.4.1 Input Rectifier 48
- 6.4.2 DC Intermediate Circuit 49
- 6.4.3 Inverter Output 50
- 6.4.4 Bypass Input 50
- 7.2 Maintenance Mode 52
- 7.3 Locating the Cabinet 52
- 7.4 Cable Installation 52
- 7.4.3 Input/Output Wiring 53
- Isolation 55
- Transformer 55
- Wiring Legend 55
- 7.5 Bolting Cabinets Together 59
- 47" cabinet 60
- NSTALLATION DRAWINGS 61
- U3819205 62
- Source: U3819611, Rev. 0 63
- Source: U3819621, Rev. 1 64
- Installation Drawings 65
- 56 Liebert 66
- FRONT VIEW LEFT VIEW 67
- Front of UPS 68
- BOTTOM VIEW 68
- TOP VIEW 68
- DETAIL A 70
- (8.83") 71
- 62 Liebert 72
- DETAIL B 73
- 64 Liebert 74
- Detail B 75
- Top View 75
- (without BCB Cover Plate) 75
- Detail A 75
- Right Side 78
- 70 Liebert 80
- Without Covers 81
- 72 Liebert 82
- With Door Open 84
- Door Open 85
- 76 Liebert 86
- 9.0 OPERATION 87
- 9.1.1 Bypass Supplies 88
- 9.1.2 Operating Modes 88
- Normal Mode 88
- Battery Mode 88
- Bypass Mode 88
- Maintenance Mode 89
- Eco Mode 89
- 10.1 Operator Control Panel 90
- 10.2 Mimic Display Indicators 91
- 10.3 Control Buttons 92
- 10.4 Audible Buzzer 93
- 10.5 LCD Overview 93
- 10.6 Navigation Keys 94
- 10.7 UPS System Information 94
- 10.8 LCD Menus and Data Items 95
- Figure 58 Menu tree 96
- 10.9 Language Selection 98
- 10.10 Current Date and Time 98
- Figure 60 Set date and time 99
- 10.11 UPS Status Messages 100
- 10.12 Types of LCD Screens 101
- 10.12.3UPS Help Screen 102
- 10.12.4Screen Saver Window 102
- 10.13 Pop-Up Windows 103
- 11.0 OPERATING INSTRUCTIONS 104
- 11.2 UPS Startup 105
- F2 F4F1 F3 HELP 106
- Operating Instructions 107
- 98 Liebert 108
- 100 Liebert 110
- 11.7 Auto Restart 111
- 11.10 Battery Protection 112
- 11.13 Parallel System Startup 115
- 12.0 OPTIONS 116
- 12.1.5 Configuring Baud Rates 117
- Relay Card 118
- 12.3 Replacing Dust Filters 119
- 13.4 Battery Run Times 124
- 116 Liebert 126
- PPENDIX A-UPS STATUS MESSAGES 127
- Table 49 UPS status messages 128
- Technical Support / Service 132
- Locations 132
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