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Eaton 91PS Manual

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Copyright 2025 Manuals.Online. All Rights Reserved.

Eaton 91PS/93PS UPS
8-10 kW
User’s and installation
guide
EEaattoonn 9911PPSS//9933PPSS UUPPSS
Copyright © 2023 Eaton Corporation plc. All rights reserved.
This manual contains important instructions that you should follow during installation and maintenance of
the UPS and batteries. Please read all instructions before operating the equipment and save this manual
for future reference.
This is a product for commercial and industrial application in the second environment. Installation
restrictions or additional measures may be needed to prevent disturbances. The contents of this manual
are the copyright of the publisher and may not be reproduced (even extracts) without the written approval
of Eaton Corporation. Every care has been taken to ensure the accuracy of the information contained in
this manual, but no liability can be accepted for any errors or omission. The right to make design
modifications is reserved.
Unauthorized copying and lending are prohibited.
Eaton Electric Oy
Address: Riistakuja 1
FI-01740 Vantaa
FINLAND
Internet: www.eaton.eu
Approvals and version history
RREEVVIISSIIOONN AATTEE EESSCCRRIIPPTTIIOONN OOFF CCHHAANNGGEE AAPPPPRROOVVEE BBYY
001 May 2017 First issue Otto Asunmaa
002 July 2017 Second issue Otto Asunmaa
003 May 2018 91PS information added Otto Asunmaa
004 June 2019 Battery sidecar option added Otto Asunmaa
005 October 2023 Minor updates due to EU-directive change Stephan Koehler
These are the original instructions.
EATON 91PS/93PS UPS USER’S AND INSTALLATION
GUIDE
P-164000672 -005 2023 www.eaton.eu 22
Contents
1 How to read this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.1 Safety-related signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.2 Symbols and abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.3 Conventions used in this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.4 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.2 Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.3 CE marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.4 User precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.5 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.6 Symbols on the UPS and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.7 For more information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3 Introduction to Eaton 91PS/93PS 8-10 kW UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.1 About the Eaton UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.2 Looking inside the UPS system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.3 UPS operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.3.1 Normal operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.3.1.1 Double conversion mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.3.1.2 Energy Saver System mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.3.2 Stored energy and battery mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.3.3 Bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.3.4 Maintenance Bypass Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3.4 UPS features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
3.4.1 Advanced Battery Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
3.4.2 Powerware Hot Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
3.4.3 Power Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
3.4.4 Frequency Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
3.5 Software and connectivity features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
3.5.1 User interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
3.5.2 Power Management Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
3.6 Options and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
3.6.1 External Maintenance Bypass Switch Panel (accessory) . . . . . . . . . . . . . . . . . . . . . . . . .24
3.7 Battery system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
3.8 Basic system configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
4 UPS installation plan and unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4.1 To install the UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4.2 Create an installation plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4.3 Installation checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4.4 Site preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4.4.1 Environmental considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4.4.2 Installation considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
4.4.3 UPS system power wiring preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
EATON 91PS/93PS UPS USER’S AND INSTALLATION
GUIDE
P-164000672 -005 2023 www.eaton.eu 33
4.5 Unpack and unload the UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
5 UPS system installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
5.1 Introduction to UPS system installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
5.2 Steps to install the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
5.3 91PS/93PS 8-10 kW UPS Single feed installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
5.4 91PS input system field configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
5.5 Battery system installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
5.5.1 Battery trip wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
5.6 Installing additional batteries and battery power cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
5.7 Installing a remote EPO switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
5.8 Installing interface connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
5.8.1 Installing customer input signals interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
5.8.2 Battery breaker wiring interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
5.8.3 Relay output interface connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
5.8.4 Industrial Relay Card interface connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
5.8.5 Minislot interface connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
5.8.6 Installing signal interface connections in a parallel system . . . . . . . . . . . . . . . . . . . . . . . .51
5.9 Wiring parallel 91PS/93PS UPS systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
5.9.1 Power wiring overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
5.9.2 Control signals overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
5.9.3 Installing bypass control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
5.10 UPS system interface wiring preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
6 Communication interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
6.1 Introduction to communication interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
6.2 MiniSlot cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
6.3 Intelligent Power Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
6.4 Signal input monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
6.5 General purpose relay contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
6.6 Configuring relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
7 UPS operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
7.1 Introduction to UPS operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
7.2 UPS controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
7.2.1 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
7.2.2 Status indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
7.2.3 System events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
7.2.4 Menu structure of the 91PS/93PS UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
7.2.4.1 User settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
7.3 Signing in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
7.4 System control instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
7.4.1 Starting the UPS system in the double conversion mode . . . . . . . . . . . . . . . . . . . . . . . . .68
7.4.2 Starting the UPS system in the bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
7.4.3 Transferring from the double conversion mode to the bypass mode . . . . . . . . . . . . . . . . .69
7.4.4 Transferring from the bypass mode to the double conversion mode . . . . . . . . . . . . . . . . .70
7.4.5 Transferring from the double conversion mode to the Energy Saver System mode . . . . . .70
7.4.6 Transferring from the Energy Saver System mode to the double conversion mode . . . . . .70
EATON 91PS/93PS UPS USER’S AND INSTALLATION
GUIDE
P-164000672 -005 2023 www.eaton.eu 44
7.4.7 Shutting down the UPS system and critical load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
7.4.8 De-energizing the critical load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
7.5 Starting a single UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
7.6 Shutting down a single UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
7.7 Enabling and disabling the battery charger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
7.8 Using the Remote Emergency Power-off switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
7.9 Turning the UPS from the double conversion mode to the maintenance bypass mode. . . . . . . . . .73
7.10 Turning the UPS from the maintenance bypass mode to the double conversion mode. . . . . . . . . .74
8 UPS maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
8.1 UPS maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
8.2 Important safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
8.3 Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
8.3.1 Daily maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
8.3.2 Monthly maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
8.3.3 Periodic maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
8.3.4 Annual maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
8.3.5 Battery maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
8.4 Recycling the used UPS or batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
8.5 Maintenance training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
9 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
9.1 About technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
9.2 Directives and standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
9.3 UPS system input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
9.4 UPS system output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
9.5 UPS environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
9.6 Battery specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
10 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
10.1 General information about warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
10.2 Whom to contact in case of Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
APPENDIX A: Recommended security hardening guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
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1 How to read this manual
11..11 SSaaffeettyy--rreellaatteedd ssiiggnnss
These are the safety-related signs used in this document.
DANGER
DANGER indicates a hazard with a high level of risk which, if not avoided, may
result in serious injury or death.
WARNING
WARNING indicates a hazard with a medium level of risk which, if not avoided,
could result in serious injury or death, or damage to the equipment.
CAUTION
CAUTION indicates a hazard with a low level of risk which, if not avoided, could
result in minor or moderate injury, or damage to the equipment.
NOTE: Notes are used to indicate important information and useful tips.
11..22 SSyymmbboollss aanndd aabbbbrreevviiaattiioonnss
HHaazzaarrdd ssyymmbboollss
These symbols indicate a hazardous situation or action. Symbols are used to warn of situations, which
can cause environmental damage and personal injury.
General warning sign
Explosion and fire hazard
Battery hazard
EATON 91PS/93PS UPS USER’S AND INSTALLATION
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Corrosive hazard
Electrical hazard
PPrroohhiibbiitteedd aaccttiioonn ssyymmbboollss
These symbols are used in warnings and notifications to indicate an action that should not be taken. The
prohibited action symbols are shown below.
No smoking
Limited or restricted access
General symbol for prohibited action
Do not touch
MMaannddaattoorryy aaccttiioonn ssyymmbboollss
These symbols are used in warnings and notifications to indicate an action that must be taken. The
mandatory action symbols are shown below.
Wear eye protection
General symbol for mandatory action
EATON 91PS/93PS UPS USER’S AND INSTALLATION
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Read the manual or instructions
Disconnect from power source
First aid
Pb
Batteries marked with this sign must be recycled
11..33 CCoonnvveennttiioonnss uusseedd iinn tthhiiss ddooccuummeenntt
This document uses the following type conventions:
Bold type highlights important concepts in discussions, key terms in procedures and menu options, or
represents a command or option that you type or enter at a prompt.
Italic type highlights notes and new terms when they are defined.
Screen type represents information that appears on the screen or LCD.
11..44 GGlloossssaarryy
The following acronyms are used in Eaton documentation to refer to Eaton UPS products or their parts.
Table 1. Glossary of acronyms
ABM Advanced Battery Management
EPO Emergency Power-Off
ESS Energy Saver System
IPM Intelligent Power Manager
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IPP Intelligent Power Protector
MBS Maintenance Bypass Switch
MIS Maintenance Isolation Switch
MOB Module Output Breaker
SCR Silicon-Controlled Rectifier
UPM Uninterruptible Power Module
UPS Uninterruptible Power Supply
VRLA Valve Regulated Lead Acid (battery)
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2 Safety instructions
22..11 GGeenneerraall ssaaffeettyy iinnssttrruuccttiioonnss
DANGER
Important safety instructions!
Keep these instructions!
This document contains important instructions that must be followed during the installation, operation and
maintenance of the UPS and the batteries. Read all of the instructions before operating the equipment.
Keep this manual for future reference. These instructions are also available for download at www.eaton.eu/
93ps.
DANGER
Operations inside the UPS must be performed by an authorized Eaton Field
Service Engineer or by other qualified service personnel authorized by Eaton.
There are no user-serviceable parts inside the UPS.
The UPS operates with mains, battery or bypass power. It contains components that carry high currents
and voltage. A properly installed enclosure is earthed and IP20 rated against electrical shock and foreign
objects. However, the UPS is a sophisticated power system and only qualified personnel are allowed to
install and service it.
DANGER
This UPS carries lethal voltages. All repairs and service must be performed by
authorized personnel only. There are no user-serviceable parts inside the UPS.
WARNING
The UPS is powered by its own energy source (batteries). The output terminals
may be energized even when the UPS is disconnected from an AC source. To
reduce the risk of fire or electric shock, install this UPS in a temperature and
humidity controlled, indoor environment that is free of conductive contaminants.
The ambient temperature must not exceed 40 °C (104 °F) non-condensing
conditions. Do not operate the UPS near water or excessive humidity (95%
relative humidity maximum). The system is not intended for outdoor use
Before you start any installation or service work, make sure that all AC and DC
power sources are disconnected. Power may come from multiple sources. Also
ensure system grounding / PE continuity.
In a parallel system, the output terminals may be energized even when the UPS
is turned off.
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