Vertiv LIEBERT PSI5 Series Installation and maintenance instructions

Liebert® PSI5
120V Input / 120V Output & 208V lnput / 208V Output
Installer/User Guide

Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent
section of this manual to see if the issue can be resolved by following outlined procedures.
Visit https://www.vertiv.com/en-us/support/ for additional assistance.
The information contained in this document is subject to change without notice
and may not be suitable for all applications. While every precaution has been
taken to ensure the accuracy and completeness of this document, Vertiv assumes
no responsibility and disclaims all liability for damages resulting from use of this
information or for any errors or omissions. Refer to other local practices or building
codes as applicable for the correct methods, tools, and materials to be used in
performing procedures not specically described in this document.
The products covered by this instruction manual are manufactured and/or sold
by Vertiv. This document is the property of Vertiv and contains condential and
proprietary information owned by Vertiv. Any copying, use or disclosure of it without
the written permission of Vertiv is strictly prohibited.
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Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide

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Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
Table of Contents
Important Safety Information..............................................................................................................................................1
1 PSI5 Description.......................................................................................................................................................................................3
1.1 Available Models...................................................................................................................................................................................................................3
1.2 Rear Panels Views..............................................................................................................................................................................................................................4
1.3 Front Panel................................................................................................................................................................................................................................7
2 Installation...........................................................................................................................................................................................9
2.1 What’s Included ....................................................................................................................................................................................................................9
2.2 Unpacking and Inspection.....................................................................................................................................................................................10
2.3 Preparation for installation....................................................................................................................................................................................................10
2.3.1 Installation Environment...........................................................................................................................................................................10
2.3.2 Installation Clearances..............................................................................................................................................................................10
2.4 Installing the UPS..........................................................................................................................................................................................................................................10
2.4.1 Installing a 2U Model ...................................................................................................................................................................................10
2.4.2 Installing a 1U Model...................................................................................................................................................................................13
2.4.3 Installing a Mini Tower (MT) Model.............................................................................................................................................14
2.5 Connecting Loads.......................................................................................................................................................................................................... 14
2.6 Connecting for Network Protection (optional) ................................................................................................................................. 14
2.7 USB Connection............................................................................................................................................................................................................... 14
2.8 Emergency Power O (EPO) Connection (Optional)................................................................................................................. 14
2.9 External Battery Cabinet Connection on 2U Models (Optional)..................................................................................... 14
2.10 Network Communication Card Connection (Optional)...........................................................................................................15
2.11 Connecting AC Input................................................................................................................................................................................................ 16

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Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
3 Operation..............................................................................................................................................................................................17
3.1 Modes of Operation........................................................................................................................................................................................................17
3.1.1 O Mode.................................................................................................................................................................................................................... 17
3.1.2 On/Normal Mode ............................................................................................................................................................................................. 17
3.1.3 On/Automatic Voltage Regulation (AVR)/Boost Mode............................................................................................ 17
3.1.4 On/Automatic Voltage Regulation (AVR)/Buck Mode ............................................................................................... 17
3.1.5 On/Battery Mode ............................................................................................................................................................................................. 17
3.1.6 Fault Mode ............................................................................................................................................................................................................. 17
3.1.7 Battery Self-Test Mode............................................................................................................................................................................... 17
3.1.8 Controls.....................................................................................................................................................................................................................18
3.2 Display Panel Indicators........................................................................................................................................................................................... 19
3.3 Audible-Tone Indicators............................................................................................................................................................................................21
3.4 Warnings ..................................................................................................................................................................................................................................21
3.5 Faults ..........................................................................................................................................................................................................................................22
3.6 Normal Startup..................................................................................................................................................................................................................22
3.7 Normal Shutdown...........................................................................................................................................................................................................23
3.8 Full Shutdown.....................................................................................................................................................................................................................23
3.9 Conguring UPS with the Settings Menu ..............................................................................................................................................23
4 Maintenance and Battery Replacement..............................................................................................................27
4.1 Precautions............................................................................................................................................................................................................................27
4.2 Battery Charging.............................................................................................................................................................................................................27
4.3 Replacing the UPS Batteries...............................................................................................................................................................................27
5 Specifications..................................................................................................................................................................................31
5.1 Run Times...............................................................................................................................................................................................................................38

1Important Safety Information
Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
Important Safety Information
IMPORTANT! This manual contains important safety instructions that must be followed during the
installation and maintenance of the UPS and batteries. Read this manual thoroughly and the safety and
regulatory information, available at https://www.vertiv.com/ComplianceRegulatoryInfo, before attempting to
install, connect to supply, or operate this UPS.

2 Important Safety Information
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31 PSI5 Description
Vertiv™ | Liebert® PSI5 120 V Input / 120 V Output & 208 V lnput / 208 V Output Installer/User Guide
1 PSI5 Description
The Liebert® PSI5 is a line-interactive UPS designed for IT applications such as network closets and
small data centers. It is available in 1U, 2U, and MT (mini tower) form factors. It provides reliable power
protection for servers, critical nodes, network work stations, large network peripherals, network routers,
bridges, hubs and other electronic equipment. Matching battery cabinets are available to extend the on-
battery operating time for VRLA (valve regulated lead acid) 2U models. The optional Liebert® Network
Communication Card makes advanced monitoring and control available.
1.1 Available Models
Table 1-1 PSI5 Models
BATTERY TYPE MODEL FORM FACTOR MODEL NUMBER NOMINAL POWER RATING (120V INPUT)
VRLA
(Valve Regulated
Lead Acid)
2U
PSI5-800RT120 800 VA / 720 W
PSI5-1100RT120 1100 VA / 990 W
PSI5-1500RT120
1500 VA / 1350 W
PSI5-1500RT120TAA
PSI5-2200RT120
1920 VA / 1920 W
PSI5-2200RT120TAA
PSI5-3000RT120
3000 VA / 2700 W
PSI5-3000RT120TAA
PSI5-5000RT208 5000 VA / 4500 W
1U
PSI5-1000RM1201U 1000 VA / 900 W
PSI5-1500RM1201U 1440 VA / 1350 W
Mini Tower
PSI5-750MT120 750 VA / 675 W
PSI5-1100MT120 1100 VA / 990 W
PSI5-1500MT120 1440 VA / 1350 W
LI (Lithium Ion）2U
PSI5-1500RT120LI 1500 VA / 1350 W
PSI5-2200RT120LI 1920 VA / 1920 W
PSI5-3000RT120LI 3000 VA / 2700 W
Mini Tower PSI5-1500MT120LI 1500 VA / 1350 W

4 1 PSI5 Description
Vertiv™ | Liebert® PSI5 120 V Input / 120 V Output & 208 V lnput / 208 V Output Installer/User Guide
1.2 Rear Panels Views
Figure 1-1 Liebert® PSI5-800/1100/1500RT120, PSI5-1500RT120TAA & PSI5-1500RT120LI Rear Panel
ITEM DESCRIPTION
1 Grounding Screw for Network/Fax/Modem Surge Protection Input/Ouptut (Torque = 7 lbf-in)
2 Network/Fax/Modem Surge Protection Input/Output
3 External Battery Connector (not applicable on LI models)
4 USB Port
5 Programmable Receptacles
6 Non-Programmable Receptacles
7 IntelliSlot Port
8Emergency Power O (EPO) Connector
9 Input Circuit Breaker (10A, 13A, 16A for 800RT, 1100RT, 1500RT models respectively)
10 AC Input
Figure 1-2 Liebert® PSI5-2200RT120, PSI5-2200RT120TAA & PSI5-2200RT120LI Rear Panel
ITEM DESCRIPTION
1 Grounding Screw for Network/Fax/Modem Surge Protection Input/Ouptut (Torque = 7 lbf-in)
2 Network/Fax/Modem Surge Protection Input/Output
3 External Battery Connector (not applicable on LI models)
4 USB Port
5 Programmable Receptacles
6 Non-Programmable Receptacles
7 IntelliSlot Port
8Emergency Power O (EPO) Connector
9 Input Circuit Breaker (20A)
10 AC Input

51 PSI5 Description
Vertiv™ | Liebert® PSI5 120 V Input / 120 V Output & 208 V lnput / 208 V Output Installer/User Guide
Figure 1-3 Liebert® PSI5-3000RT120, PSI5-3000RT120TAA & PSI5-3000RT120LI Rear Panel
ITEM DESCRIPTION
1 Grounding Screw for Network/Fax/Modem Surge Protection Input/Ouptut (Torque = 7 lbf-in)
2 Network/Fax/Modem Surge Protection Input/Output
3 External Battery Connector (not applicable on LI models)
4 USB Port
5 Programmable Receptacles
6 Non-Programmable Receptacles
7 IntelliSlot Port
8Emergency Power O (EPO) Connector
9 Input Circuit Breaker (30A)
10 AC Input
11 Output Circuit Breaker
Figure 1-4 Liebert® PSl5-5000RT208 Rear Panel
ITEM DESCRIPTION
1 Grounding Screw for Network/Fax/Modem Surge Protection Input/Ouptut (Torque = 7 lbf-in)
2 Network/Fax/Modem Surge Protection Input/Output
3 External Battery Connector
4 USB Port
5 Programmable Receptacles
6 Non-Programmable Receptacles
7 IntelliSlot Port
8Emergency Power O (EPO) Connector
9 Input Circuit Breaker (30A)
10 AC Input

6 1 PSI5 Description
Vertiv™ | Liebert® PSI5 120 V Input / 120 V Output & 208 V lnput / 208 V Output Installer/User Guide
Figure 1-5 Liebert® PSl5-1000/1500RM1201U Rear Panel
ITEM DESCRIPTION
1 IntelliSlot Port
2 Input Circuit Breaker (13A, 16A for 1000RM and 1500RM models respectively)
3 AC Input
4Emergency Power O (EPO) Connector
5 USB Port
6 Programmable Receptacles
7 Non-Programmable Receptacles
Figure 1-6 Liebert® PSI5 Mini Tower Rear Panels
ITEM DESCRIPTION
1 PSI5-750/1100MT120
2 PSI5-1500MT120
3 PSI5-1500MT120LI
4 Network/Fax/Modem Surge Protection Input/Output
5 Grounding Screw for Network/Fax/Modem Surge Protection Input/Ouptut (Torque = 7 lbf-in)
6 IntelliSlot Port
7 Non-Programmable Receptacles
8 Programmable Receptacles
9 AC Input
10 USB Port
11 AC Input Breaker (10A, 13A, 16A for 750MT, 1100MT, 1500MT models respectively)
12 Emergency Power O (EPO) Connector

71 PSI5 Description
Vertiv™ | Liebert® PSI5 120 V Input / 120 V Output & 208 V lnput / 208 V Output Installer/User Guide
1.3 Front Panel
NOTE: For detailed descriptions of the LCD, see Display Panel Indicators on page 19.
Figure 1-7 Controls and Display on 2U and MT Models
ITEM DESCRIPTION
1 ON/MUTE button. See Controls on page 18, for details.
2 SELECT button. See Controls on page 18, for details.
3 OFF/ENTER button. See Controls on page 18, for details.
Figure 1-8 Controls and Display on 1U Models
ITEM DESCRIPTION
1 ON/MUTE button. See Controls on page 18, for details.
2 SELECT button. See Controls on page 18, for details.
3 OFF/ENTER button. See Controls on page 18, for details.

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92 Installation
Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
2 Installation
2.1 What’s Included
RT models
• UPS
• Accessory box including
• Quick installation guide
• Safety and regulatory statements
• Front bezel
• 4 x Tower feet and screws (M4 x 8 mm)
• 2 x UPS rack ears
• 8 x Rack ear screws (M4 x 8 mm)
• USB type A to B cable
• Rail slide kit box
• Left and right rail set
• 8 x Rail kit screws (M6 x 12 mm)
• 4 x Fixing studs (Ø8.5 mm x 15.5 mm)
• 6 x Rack nuts (M6)
• NEMA L5-20R to 5-20P adapter cord (2200RT models only)
RM models:
• UPS
• Accessory box including:
• Quick installation guide
• Safety Instructions
• 2 x UPS rack ears
• 8 x Rack ear screws (M4 x 8mm)
• USB type A to B cable
• Rail slide kit box
• Left and right rail set
• 8 x Rack kit screws (M6 x 12mm)
• 4 x Fixing studs (Ø8.5mm x 15.5mm)
• 6 x Rack nuts (M6)

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Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
MT models
• UPS
• Quick installation guide
• Safety and regulatory statements
• USB type A to B cable
2.2 Unpacking and Inspection
Unpack the UPS and conduct the following checks:
• Inspect the UPS for shipping damage. If any shipping damage is found, report it to the carrier
and your local dealer or your Vertiv™ representative immediately.
• Check the accessories included in the packing list. If there is any discrepancy, contact your local
dealer or Vertiv representative immediately.
2.3 Preparation for installation
2.3.1 Installation Environment
• Install the UPS indoors in a controlled environment where it cannot be accidentally turned o.
The installation environment should meet the conditions listed Specications on page 31.
• Place it in an area of unrestricted airow around the unit, away from water, ammable liquids,
gases, corrosives and conductive contaminants. Avoid direct sunlight.
• The socket outlet should be nearby and easily accessible.
NOTE: Operating the UPS in temperatures above 77°F (25°C) reduces battery life.
2.3.2 Installation Clearances
Maintain at least 4 in. (100 mm) clearance in the front and rear. Do not obstruct the air inlets on the front
panel and rear panel. Blocking the air inlets reduces ventilation and heat dissipation, shortening the service
life of the UPS.
2.4 Installing the UPS
2.4.1 Installing a 2U Model
The 2U UPS and optional battery cabinets may be installed in a tower or rack conguration. The 2ULI
models may also be installed in a tower or rack conguration but do not support external battery cabinets.
Determine the conguration that meets your application needs, see Tower Installation below, or Rack-
Mount Installation on the facing page.

112 Installation
Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
Tower Installation
When using the UPS in a tower conguration, see Figure 2-1 below. If you have an external battery, see
Figure 2-2.
Figure 2-1 Attaching stands to the UPS
ITEM DESCRIPTION
1 Rotate the display by pulling out, and turning it clockwise until it is seated in the proper orientation.
2 Connect the two halves of the stand together.
3 Place the UPS in the stands.
4 Make sure that the stands are installed 70mm (2.76 in.) form the edge of the unit.
Figure 2-2 Attaching stands to the UPS and external battery
ITEM DESCRIPTION
1 Insert a spacer on each stand and install the securing screws.
2 Connect the two halves of the stand together and install the securing screws
3 Place the UPS and external battery pack in the stands (rotate the display on the UPS if desired, see Figure 2-1)
4 Make sure that the stands are installed 70 mm (2.76 in.) from the edge of the unit.

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Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
Rack-Mount Installation
CAUTION: Do not use the mounting brackets to lift the unit. Use the mounting brackets only to
secure the UPS to the rack.
See Figure 2-3 to install the unit in a rack. If you have an external battery, see Figure 2-4.
Figure 2-3 Installing the UPS in a rack
ITEM DESCRIPTION
1 Attach the rack ears with four rack ear screws to the front right and left sides of the UPS
2Attach two xing studs to each rail. Select the desired U position and position the rails onto the rack using the xing
studs.
3 Attach two rail kit screws to each rail to secure the rails to the rack.
4 Attach three rack nuts on each side of the rack
5Place the UPS with attached rack ears onto the rail supports. The batteries may be temporarily removed for easier
installation.
6 Attach two rail kit screws to each UPS rack ear and corresponding rack nut to secure the UPS to the rack.
Figure 2-4 Installing the external battery in a rack

132 Installation
Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
ITEM DESCRIPTION
1 Attach the rack ears with four rack ear screws to the front right and left sides of the external battery.
2Attach two xing studs to each rail. Select the desired U position and position the rails onto the rack using the xing
studs.
3 Attach two rail kit screws to each rail to secure the rails to the rack.
4 Attach three rack nuts on each side of the rack.
5 Place the external battery with attached rack ears onto the rail supports.
6Attach two rail kit screws to each external battery kit rack ear and corresponding rack nut to secure the external
battery to the rack.
2.4.2 Installing a 1U Model
CAUTION: Do not use the mounting brackets to lift the unit. Use the mounting brackets only to
secure the UPS to the rack.
See Figure 2-5 below to install the unit.
Figure 2-5 Installing the UPS in a rack
ITEM DESCRIPTION
1 Attach the rack ears with four rack ear screws to the front right and left sides of the UPS
2Attach two xing studs to each rail. Select the desired U position and position the rails onto the rack using the xing
studs
3 Attach two rail kit screws to each rail to secure the rails to the rack
4 Attach rack nuts on each side of the rack
5Place the UPS with attached rack ears onto the rail supports. The batteries may be temporarily removed for easier
installation.
6 Attach a rail kit screw to each UPS rack ear and corresponding rack nut to secure the UPS to the rack
2.4.3 Installing a Mini Tower (MT) Model
Place the unit upright, on its feet without blocking air inlets.

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Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
2.5 Connecting Loads
The UPS has non-programmable and programmable outlets. Plug your critical equipment (such as
computer, monitors, etc.) into the non-programmable outlets and your less-critical equipment (such as
printers and other less-often used peripherals) into the programmable outlets. Refer to setting numbers 2
and 3 in Table 3-6 for programming instructions.
2.6 Connecting for Network Protection (Optional)
Protection from electrical surges to your computer network or telephone is provided on 2U and MT
models. Use the network/fax/modem surge-protection ports on the rear panel. Connect the “IN” port to the
line from the wall jack and the “OUT” port to your device port. Use of this feature is not required for proper
operation of the UPS.
2.7 USB Connection
Basic monitoring of the PSI5™ and unattended controlled shutdown of your computer in case of a power
failure can be done using the Liebert Power Assist software via the USB port. Visit www. vertiv.com/
powerassist for additional information.
2.8 Emergency Power O (EPO) Connection (Optional)
To comply with national and local wiring codes and regulations, the EPO connector internally disconnects
all power sources to equipment connected to the UPS. The default operation is “active open” which means
you must remove the factory-installed jumper and connect to external contacts that are normally closed
but which open during a power-o event. The logic may be reversed in the Settings; see Conguring UPS
with the Settings Menu on page 23. If you do not use the EPO connector, leave the factory-installed
jumper in place and the default EPO settings in the Settings.
2.9 External Battery Cabinet Connection on 2U Models
(Optional)
External battery cabinets provide longer battery run time for connected devices. Refer to Specications
on page 31, and Run Times on page 38, to select the appropriate model and quantity for your PSI5
model and applications. You can connect up to six battery cabinets to the 2U PSI5 models. LI, MT, and 1U
models do not support external battery cabinets.

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Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
To connect an external battery pack:
1. Connect one end of the external battery cable to the UPS and one end to the battery cabinet as shown
in Figure 2-6 on the facing page.
2. If connecting more than one external battery, connect one end of the external battery cable to the
second connector on the battery cabinet, the connect the other end to the next battery cabinet as
shown in Figure 2-6 on the facing page.
NOTE: After installation and initial startup, set the number of installed battery cabinets in the UPS
Settings.
NOTE: When two or more external battery cabinets are used with PSI5-1100/2200/3000/5000 models,
the UPS load rating is decreased by 20%.
Figure 2-6 Connecting External Batteries
ITEM DESCRIPTION
1 Connection to UPS
2Connection from UPS to single/rst external battery
3 Connection to second connector on external battery cabinet for additional battery cabinets.
4 Connect to next external battery
2.10 Network Communication Card Connection (Optional)
Advanced monitoring and simple control of the PSI5 can be done with the use of a Vertiv Liebert IntelliSlot
Unity Communications card. Visit www.vertiv. com/intellislot for additional information.
To install the card:
1. Remove the two screws and protective cover on the rear panel network communications port.
2. Insert the card into the port and secure it with the screws. Refer to the documentation with the card or
at the link above for cable connection and operation.

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Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
2.11 Connecting AC Input
CAUTION: For 1U and MT UPS models, to reduce the risk of fire, connect only to a circuit
provided with 20A maximum branch circuit over current protection in accordance with the
National Electrical Code, ANSI/NFPA 70 and the Canadian Electrical Code, Part I, C22.1.
Ensure that all the loads are rst powered o. Connect to an input power supply/wall outlet that is properly
protected by a circuit breaker in accordance with national and local electrical codes. The input receptacle
must be grounded. See Specications on page 31, for input cord rating. An external circuit breaker as
described in Table 2-1 below is recommended.
Once the UPS is plugged into the wall outlet, it begins charging the battery.
NOTE: While every precaution has been taken to ensure that the battery is in good condition, VertivTM
recommends plugging the UPS into AC input and to charge the battery for at least 12 hours prior to
providing full backup time protection for any utility power abnormality.
Table 2-1 Recommended external circuit breaker
WIRING
MODEL RECOMMENDED EXTERNAL BREAKER
PSI5-750MT120
15A
PSI5-800RT120
PSI5-1100RM1201U
PSI5-1100MT120
PSI5-1100RT120
PSI5-1500RM1201U
PSI5-1500RT120
PSI5-1500RT120TAA
PSI5-1500MT120
PSI5-1500MT120LI
PSI5-2200RT120
20APSI5-2200RT120TAA
PSI5-2200RT120LI
PSI5-3000RT120TAA
30A
PSI5-3000RT120LI
PSI5-3000RT120
PSI5-5000RT208