Table of Contents
- 1 Important Safety Precautions
- 2 GXT4 Description
- 3 Installation
- 3.1 What’s Included
- 3.2 Unpacking and Inspection
- 3.3 Preparation for Installation
- 3.4 Installing the UPS
- 3.5 Installing External Battery Cabinets
- 3.6 Connecting Input/Output Power
- 3.6.1 Installing the Power Distribution Box on 5000VA and 6000VA Models
- 3.6.2 Install the Power Distribution Box on 8000VA and 10,000VA Models
- 3.6.3 Electrical Connections for the Power-distribution Box
- 3.6.4 Removing the Power Distribution Box from 5000VA and 6000VA Models
- 3.6.5 Removing the Power Distribution Cover from 8000VA and 10,000VA Models
- 4 Operation and Display Panel
- 5 Operation
- 6 Communication
- 7 Maintenance
- 8 Troubleshooting
- 9 Specifications
- Appendices
Vertiv GXT4-8000RT208 User Manual
Displayed below is the user manual for GXT4-8000RT208 by Vertiv which is a product in the Uninterruptible Power Supplies (UPSs) category. This manual has pages.
Related Manuals
Liebert®
GXT4™ UPS
Installer/User Guide
208V, 5000VA – 10,000VA, 6000RTL630
Vertiv | Liebert® GXT4™ 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.VertivCo.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
specifically 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 confidential and proprietary information owned by Vertiv.
Any copying, use or disclosure of it without the written permission
of Vertiv is strictly prohibited.
Names of companies and products are trademarks or registered
trademarks of the respective companies. Any questions regarding
usage of trademark names should be directed to the original
manufacturer.
TABLE OF CONTENTS
1 Important Safety Precautions 7
2 GXT4 Description 11
2.1 Features 11
2.2 Available Models 11
2.3 Front Panel and Controls 12
2.4 Rear Panel Features 12
2.5 Removable Power Distribution Box 15
2.6 Internal Battery Packs 20
2.7 Major Components 21
2.7.1 Transient Voltage Surge Suppression (TVSS) andEMI/RFIFilters 22
2.7.2 Rectifier/Power Factor Correction (PFC) Circuit 22
2.7.3 Inverter 22
2.7.4 Battery Charger 22
2.7.5 DC-to-DC Converter 22
2.7.6 Battery 22
2.7.7 Internal Bypass 22
2.7.8 Maintenance Bypass 23
2.8 Operating Modes 23
2.8.1 Mains Mode 23
2.8.2 Manual Bypass Mode 23
2.8.3 Battery Mode 23
2.8.4 Battery Recharge Mode 24
2.8.5 Frequency Converter Mode 24
2.8.6 Active ECO Mode 24
3 Installation 25
3.1 What’s Included 25
3.2 Unpacking and Inspection 25
3.3 Preparation for Installation 26
3.3.1 Installation Environment 26
3.3.2 Installation Clearances 26
3.4 Installing the UPS 26
3.4.1 Tower Installation 26
3.4.2 Rack Installation 28
3.4.3 Installing the Internal Battery Kit(s) 28
3.5 Installing External Battery Cabinets 29
3.6 Connecting Input/Output Power 30
3.6.1 Installing the Power Distribution Box on 5000VA and 6000VA Models 30
3.6.2 Install the Power Distribution Box on8000VAand10,000VAModels 31
3.6.3 Electrical Connections for the Power-distribution Box 31
3.6.4 Removing the Power Distribution Box from5000VAand6000VAModels 33
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3.6.5 Removing the Power Distribution Cover from8000VAand10,000VAModels 34
4 Operation and Display Panel 37
4.1 LED Indicators 37
4.2 Control Buttons 38
4.3 LCD 38
4.4 Menu Structure 39
4.4.1 Startup Screen 40
4.4.2 Default Screen 40
4.4.3 Main Menu Screen 40
4.5 Prompt List 43
4.6 Warning List 44
4.7 Fault List 44
5 Operation 47
5.1 Startup Checklist for the GXT4 47
5.2 Starting the UPS 47
5.3 Performing a Manual Battery Test 47
5.4 Performing Manual Bypass 48
5.5 Shutting Down the GXT4 48
5.6 Disconnecting Input Power from the GXT4 48
5.7 Placing UPS in Maintenance Bypass 48
6 Communication 49
6.1 Liebert® IntelliSlot Communication Cards 49
6.2 USB Port Communication 49
6.2.1 Configuration Program 49
6.3 Terminal Block Communication 51
6.3.1 Any Mode Shutdown 51
6.3.2 Battery Mode Shutdown 52
6.3.3 On Battery 52
6.3.4 Low Battery 52
6.4 Remote Emergency Power Off—GXT4-6000RTL630 52
6.5 Remote Emergency Power Off—GXT4-5000RT208, GXT4-6000RT208,GXT4-8000RT208,
GXT4-10000RT208 53
7 Maintenance 55
7.1 Replacing the Internal Battery Pack 55
7.1.1 Battery Replacement Procedures 56
7.2 Charging Batteries 57
7.3 Precautions 58
7.4 Checking UPS Status 58
7.5 Checking UPS Functions 58
7.6 Replacing the Power Module on8000and10,000VA models 58
8 Troubleshooting 61
8.1 Symptoms that Require Troubleshooting 61
8.1.1 Faults 61
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1 IMPORTANT SAFETY PRECAUTIONS
SAVETHESEINSTRUCTIONS
This manual contains important safety instructions that must be followed during the installation and
maintenance of the UPS and batteries. Read this manual thoroughly before attempting to install or
operate this UPS. Adhere to all warnings on the unit and in this manual. Follow all operating and user
instructions. This equipment can be operated by individuals without previous training.
UPS Safety Notes
This UPS contains no user-serviceable parts except the internal battery pack. The Off/Bypass
pushbutton does not electrically isolate internal parts. Under no circumstances attempt to gain internal
access other than to replace the batteries due to risk of electric shock or burn. Do not continue to use the
UPS if the front panel indications are not in accordance with these operating instructions or if the UPS
performance alters in use. Refer all faults to your local dealer, Vertiv representative or Vertiv Channel
Support.
This UPS has an internal battery, and the output receptacles of the UPS may carry live voltage even if the
UPS is not connected to utility input power.
Before moving or rewiring this UPS, disconnect utility input power and the battery and make sure that the
UPS is completely shut down. Otherwise, the output terminal may carry live voltage, presenting an electric
shock hazard.
To ensure human safety and normal UPS operation, the UPS must be properly grounded before use.
When the UPS is connected to an IT power distribution system, a short-circuit protection device must be
installed on the neutral line.
Install and use the Liebert® GXT4 in the following environments:
•Temperature: 32°F - 104°F (0°C - 40°C), relative humidity: 0% to 95% non-condensing
•Out of direct sunlight
•Away from heat sources
•Stable surface, not subject to vibrations or shocks
•Away from dust and other particulates
•Away from corrosive substances, salts and flammable gases
Keep the air inlet and outlet of this UPS unobstructed. Poor ventilation will increase the internal
temperature of the UPS and can adversely affect the UPS and its batteries.
Keep liquid and foreign objects away from the UPS. Turn Off and isolate the UPS before cleaning it. Use
only a soft cloth, never liquid or aerosol cleaners.
In case of fire, use a dry chemical fire extinguisher to put out the fire. Using a fluid fire extinguisher may
cause electric shock.
DO NOT CONNECT equipment that could overload the UPS or demand DC current from the UPS, for
example: electric drills, vacuum cleaners, laser printers, hair dryers or any appliance using half-wave
rectification.
Storing magnetic media on top of the UPS may result in data loss or corruption.
1 Important Safety Precautions 7
This product is designed for commercial/industrial use only. This UPS is not intended for use with life
support and other designated critical devices. Maximum load must not exceed that shown on the UPS
rating label. This UPS is designed for data processing equipment. If uncertain, consult your local dealer or
Vertiv representative.
This UPS is not for use in a computer room as defined in the standard for the Protection of Electronic
Computer/Data Processing Equipment, ANSI/NFPA 75.
This UPS is designed for use on a properly grounded (earthed), 100/200, 110/220, 115/230,
120/208,120/240 or 127/220VAC, 50 or 60Hz supply. The factory default setting is 120/208VAC, 60Hz.
Installation instructions and warning notices are in this manual.
The Liebert® GXT4 208VAC 5000 - 10000 is designed for use with a 4-wire input (L1, L2, N, G).
The Liebert® GXT4-6000RTL630 is designed be used with a 3-wire, 2-phase utility source (L1,L2, G).
Battery Safety
WARNING! Risk of electric shock and explosion. Can cause equipment damage, injury and
death. Do not dispose of the battery in a fire. The battery may explode. Do not open or damage
the battery. Released electrolyte is toxic and is harmful to skin and eyes. If electrolyte comes
into contact with the skin, wash the affected area immediately with plenty of clean water and
get medical attention.
WARNING! Risk of electric shock. Can cause equipment damage, injury and death. A battery
can present a risk of electrical shock and high short-circuit current.
The following precautions should be observed when working on batteries:
•Remove watches, rings and other metal objects.
•Use tools with insulated handles.
•Wear rubber gloves and boots.
•Do not lay tools or metal parts on top of batteries.
•Disconnect charging source prior to connecting or disconnecting battery terminals.
•If the battery kit is damaged in any way or shows signs of leakage, contact your local Vertiv
representative immediately.
•Handle, transport and recycle batteries in accordance with local regulations.
•Determine if the battery is inadvertently grounded. If it is inadvertently grounded, remove the
source of the ground. Contact with any part of a grounded battery can result in electrical
shock. The likelihood of such shock will be reduced if grounds are removed during installation
and maintenance (applicable to a UPS and a remote battery supply not having a grounded
supply circuit).
ELECTROMAGNETIC COMPATIBILITY
The Liebert® GXT4 series complies with the requirements of EMC Directive 2004/108/EC and the
published technical standards. Continued compliance requires installation in accordance with these
instructions and use of accessories approved by Vertiv.
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Notice
This is a product for restricted sales distribution to informed partners. Installation restrictions
or additional measures may be needed to prevent radio interference.
Information for the Protection of the Environment
UPS Servicing: UPS makes use of components dangerous for the environment (electronic cards,
electronic components). The components removed must be taken to specialized collection and disposal
centers.
NOTICE TO EUROPEAN UNION CUSTOMERS: DISPOSAL OF OLD APPLIANCES—This product has been
supplied from an environmentally aware manufacturer that complies with the Waste Electrical and
Electronic Equipment (WEEE) Directive 2002/96/CE.
The “crossed-out wheelie bin” symbol at right is placed on this product to encourage you to recycle
wherever possible. Please be environmentally responsible and recycle this product through your
recycling facility at its end of life. Do not dispose of this product as unsorted municipal waste. Follow local
municipal waste ordinances for proper disposal provisions to reduce the environmental impact of waste
electrical and electronic equipment (WEEE). C
For information regarding the scrapping of this equipment, please browse
https://www.vertivco.com/en-emea/ or call our worldwide technical support.
•Toll Free: 00 80011554499
•Toll Number Based in Italy: +39 0298250222
SYMBOL DESCRIPTION SYMBOL DESCRIPTION
Risk of electrical shock Recycle
Indicates caution followed by important instructions DC voltage
AC input Equipment grounding conductor
AC output Bonded to ground
Requests the user to consult the manual AC voltage
Indicates the unit contains a valve-regulated lead acid battery
Table 1.1 Glossary of Symbols
1 Important Safety Precautions 9
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2 GXT4 DESCRIPTION
The Liebert® GXT4 is a compact, online uninterruptible power system (UPS) that continuously conditions
and regulates its output voltage. The Liebert® GXT4 supplies microcomputers and other sensitive
equipment with clean sine-wave input power.
Upon generation, AC power is clean and stable. However, during transmission and distribution it is subject
to voltage sags, spikes, and complete failure that may interrupt computer operations, cause data loss, and
damage equipment.
The Liebert® GXT4 protects equipment from these disturbances. The Liebert® GXT4 continuously
charges its batteries from the mains, enabling it to supply power to connected loads, even when the mains
fail.
2.1 Features
•Intelligent battery management to extend the battery life
•LCD for user-friendly operation and local monitoring and configuration of operational
parameters
•Fan fault self-inspection and automated diagnostic function
•Intelligent fan operation, automatically changing rotation speed depending on system
requirements, to decrease power consumption and noise
•Input circuit breaker to ease recovery from overloads
•Safety approval from UL and cUL
•Communication options: USB port, Liebert® IntelliSlot™ port and terminal-block communication
•Dry contacts for remote monitoring
•Input power factor greater than0.99
•Output voltage selection function
2.2 Available Models
Available models of the UPS are listed in the following table.
MODEL NUMBER NOMINAL POWER RATING
GXT4-5000RT208 5000VA / 4000W
GXT4-6000RT208 6000VA / 4800W
GXT4-6000RTL630 6000VA / 4200W
GXT4-8000RT208 8000VA / 7200W
GXT4-10000RT208 10000VA / 9000W
Table 2.1 UPS models, power ratings
2 GXT4 Description 11
2.3 Front Panel and Controls
The Liebert GXT4 rack/tower models in various power ratings have the same general appearance,
controls and features as shown in the following figure. The various rack/towermodels differ largely in the
type of receptacles each has.
Figure 2.1 Front view
NO. DESCRIPTION
1 Upper bezel
2 Operation and display panel
3 Lower bezel and battery-access door
2.4 Rear Panel Features
The rear panel of the Liebert® GXT4 has these features:
•Liebert® IntelliSlot™ Port
•USB port
•Input Circuit Breaker
•Maintenance Bypass Circuit Breaker (not present on all optional PODs)
•REPO connection
•Input Receptacle
•General Output Receptacles (on optional PODs)
•External Battery Connector
•Cooling Fan
•Terminal Block Communication
•Output Circuit Breakers (only on optional PODs)
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Figure 2.2 Rear panel—5000VA and 6000VA with input power hard-wired box
NO. DESCRIPTION NO. DESCRIPTION
1 Liebert® IntelliSlot Unity-DP card 5 Input breaker
2 External battery connector 6 Terminal block communication
3 Knockouts for hard-wired power input and output 7 REPO
4 USB port
NOTE: Hard-wired and hard-wired/receptacle boxes that include a manual bypass switch permit AC
power to continue to flow from the utility input to the load while the box is removed from the UPS. For
details, refer to Connecting Input/Output Power on page30.
2 GXT4 Description 13
Figure 2.3 Rear panel—GXT4-6000RTL630
NO. DESCRIPTION NO. DESCRIPTION
1 Liebert® IntelliSlot Unity-DP card 6 Maintenance bypass breaker
2 Input breaker for L6-30P #1 7 Output breaker for L6-20R #2 and #3
3 Terminal block communication 8 Output breaker for L6-30R #4
4 REPO connection block 9 Output breaker for L6-30R #5
5 USB port 10 External battery connector
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Figure 2.4 Rear panel—8000VA and 10,000VA
NO. DESCRIPTION NO. DESCRIPTION
1 Liebert® IntelliSlot Unity-DP card 6 Maintenance bypass switch
2 Terminal block communication 7 Knockouts for hard-wired power input
3 REPO connection block 8 External battery connectors
4 USB port 9 Cover for power-distribution box connections
5 Input breaker switch 10 Output breaker switch
2.5 Removable Power Distribution Box
The 5000- and 6000-VA RT208 UPS ships with a power-distribution pack installed. This box contains the
UPS input circuit breaker.
2 GXT4 Description 15
Figure 2.5 Power distribution models for 5000VA and 6000VA models
NO. DESCRIPTION NO. DESCRIPTION
1 Input breaker switch 8 PD2-002 Receptacles: two 5-15/20R, twoL6-20R
2 Output-power breakers for pigtails 9 PD2-003 Receptacles: four5-15/20R, twoL6-30R
3 L14-30 input-power connector 10 PD2-004 Receptacles: four L5-20R, twoL5-30R
4 Push-button output-power breakers for L5-20R receptacles 11 PD2-005 Receptacles: four L5-20R, twoL6-30R
5 PD2-001 Receptacles: four 5-15/20R, one L14-30, oneL6-30R 12 PD2-006 Receptacles: four L6-20R
6 L14-30 output-power connectors 13 PD2-007 Receptacles: two L5-20R, twoL6-20R
7 Maintenance bypass breaker
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NOTE: PD2-001 is shown with labeled examples. Other boxes are arranged differently.
2 GXT4 Description 17
Figure 2.6 Power distribution models for 8000VA and 10,000VA models
NO. DESCRIPTION NO. DESCRIPTION
1 5-15/20R output receptacles 7 PD2-102 Receptacles: four L6-20R, four 5-15/20R
2 Output circuit-breaker switch for L6-30R pigtail #1 8 PD2-103 Receptacles: four L6-30R, four 5-15/20R
3 L6-30R output receptacle 9 PD2-104 Receptacles: four 5-15/20R, two L6-30R,
twoL6-20R
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NO. DESCRIPTION NO. DESCRIPTION
4 L6-30R output receptacle 10 PD2-105 Receptacles: four 5-15/20R, two L5-30R,
twoL5-20R
5 Output circuit-breaker switch for L6-30R pigtail #2 11 PD2-106 Receptacles: four L6-20R, four L5-20R
6Push-button circuit breakers for 5-15/20R
receptacles
NOTE: PD2-101 is shown with labeled examples. Other boxes are arranged differently.
2 GXT4 Description 19
Figure 2.7 Power distribution models for 8000VA and 10,000VA models (continued)
NO. DESCRIPTION NO. DESCRIPTION
1 PD2-107 Receptacles: four L5-20R, four 5-15/20R 5 PD2-201
Receptacles: two IEC320-C19, eightIEC320-C13
2 PD2-108 Receptacles: two L6-30R, two L6-20R 6 PD2-202 Receptacles: twelveIEC320-C13
3 PD2-109 Receptacles: two L14-30R 7 PD2-204 Receptacles: two IEC309-32A,
fourIEC320-C13
4PD2-200 Receptacles: four IEC320-C19,
fourIEC320-C13
2.6 Internal Battery Packs
The UPS has two internal battery packs behind a battery-access door on the front of the unit. Each
internal battery pack is fitted with a connector to link to the UPS.
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GXT4 10,000-VA battery pack shown is shown in the figure. 5000-VA and 6000-VA battery packs have
the same features.
Figure 2.8 Internal battery pack with connector
NO. DESCRIPTION
1 Battery handle
2 Battery connector
2.7 Major Components
The UPS is composed of mains input, TVSS and EMI/RFI filters, rectifier/PFC, inverter, battery charger, DC-
to-DC converter, battery, dynamic bypass and UPS output.
Figure 2.9 Operating principle diagram
2 GXT4 Description 21
2.7.1 Transient Voltage Surge Suppression (TVSS) andEMI/RFIFilters
The UPS has surge protection and filters that protect the connected load from power surges,
electromagnetic interference (EMI) and radio frequency interference (RFI). These features can minimize
any surges or interference present in the mains power. The filters also prevent surges or interference
generated by the UPS from adversely affecting devices connected on the same branch as the UPS.
2.7.2 Rectifier/Power Factor Correction (PFC) Circuit
In normal operation, the rectifier/PFC circuit converts mains power to regulated DC power for use by the
inverter while ensuring that the wave shape of the input current used by the UPS is near ideal. Extracting
this sine-wave input current achieves two objectives:
•Efficient power use by the UPS
•Reduced reflected harmonics
This results in cleaner power available to other devices in the building that are not protected by the
GXT4.
2.7.3 Inverter
In normal operation, the inverter utilizes the DC output of the PFC circuit to produce precise, regulated
sine-wave AC power. When mains power fails, the inverter receives DC power from the DC-to-DC
Converter. In either operation mode, the UPS inverter is online, continuously generating clean, precise,
regulated AC output power.
2.7.4 Battery Charger
The battery charger utilizes energy from the mains power and precisely regulates it to continuously float
charge the batteries. The batteries are being charged whenever the GXT4 is plugged in, even when the
UPS is not turned On.
2.7.5 DC-to-DC Converter
The DC-to-DC converter raises the DC voltage from the battery to the optimum operating voltage for the
inverter. This allows the inverter to operate continuously at its optimum efficiency and voltage, thus
increasing reliability.
2.7.6 Battery
The GXT4 uses valve-regulated, non-spillable, lead acid batteries. To maintain battery design life, Operate
the GXT4 in an ambient temperature of 15°Cto25°C (59°Fto 77°F).
Optional external battery cabinets are available to extend battery run times.
2.7.7 Internal Bypass
The GXT4 provides an alternate path for mains power to the connected load in the unlikely event of a
UPS malfunction. Should the UPS have an overload, over-temperature or any other UPS failure condition,
the UPS automatically transfers the connected load to bypass. Bypass operation is indicated by an
audible alarm and illuminated amber Bypass LED (other LEDs may be illuminated to indicate the
diagnosed problem).
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To manually transfer the connected load from the inverter to bypass, press the Standby/Manual Bypass
button once and hold it for about 2 seconds
2.7.8 Maintenance Bypass
The GXT4 provides a manual maintenance bypass in a removable section of the rear of the UPS. This
allows replacement of the UPS in the event of a UPS malfunction while keeping the connected equipment
powered with utility power.
NOTE: The bypass power path does not protect the connected equipment from disturbances in the
mains supply.
2.8 Operating Modes
The UPS operation modes include the following: Mains (AC) Mode, Bypass Mode, Battery Mode, Battery
Recharge Mode, Active ECO Mode and Frequency Converter Mode.
Refer to Operation and Display Panel on page37 for details about the operating mode indicators and
control buttons.
2.8.1 Mains Mode
During Mains Mode, the mains provides input power to the GXT4. The filters, PFC circuit and inverter
process this power to provide high-quality sine wave power to connected loads. The UPS maintains the
batteries in a fully-charged state.
2.8.2 Manual Bypass Mode
Manual Bypass Mode occurs when the unit is manually placed in internal bypass by navigating the LCD
menu to select 3 Control >1 Turn On & Off >Turn UPS Bypass. Bypass operation is indicated by an audible
alarm and illuminated amber bypass indicator. (If other indicators are illuminated, refer to
Troubleshooting on page61). During Bypass Mode, mains power bypasses the inverter and provides
energy to the connected load.
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
Turning Off the UPS in Bypass Mode will result in loss of output power to the connected load.
2.8.3 Battery Mode
The GXT4 enters Battery Mode when mains power fails or is outside acceptable limits. The battery system
supplies power through the DC-to-DC converter to the inverter to generate clean AC power for the
connected loads.
When the GXT4 enters Battery Mode, the UPS sounds a half-second beep at 10-second intervals. When
approximately 2 minutes of run time remains, the beeps sound every 5seconds to warn that the battery is
getting low (this Low Battery Warning is user-configurable).
In Battery Mode, the battery indicator will illuminate and the LCD will show the prompt utility power not
available.
2 GXT4 Description 23
Press either the Up or Down button once, then press the Enter button to clear the prompt and silence the
audible alarm. Once the alarm prompt has been acknowledged, the screen showing the estimated battery
run time and battery capacity will be visible. Refer to Troubleshooting on page61.
For approximate battery run times, refer to .
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
Turning Off the GXT4 when it is in Battery Mode will result in loss of output power to the
connected load.
If the UPS is turned Off manually, it must be manually restarted after mains power returns.
If the UPS is turned Off by a communication signal or because the batteries are depleted, it will
operate as set in the configuration program for Auto-Restart (Refer to Configuration Program
on page49).
2.8.4 Battery Recharge Mode
Once mains power is applied to the GXT4, the Battery Charger begins charging the batteries.
2.8.5 Frequency Converter Mode
All models of the GXT4 are capable of frequency conversion. Frequency Conversion Mode can be selected
using the configuration program. Allowable frequency operating modes include:
•Auto Sensing - 50 Hz or 60Hz – Bypass Enabled
•Auto Sensing - 50 Hz or 60Hz – Bypass Disabled
•Frequency Converter - 50 Hz – Bypass Disabled
•Frequency Converter - 60Hz – Bypass Disabled
NOTE: The default for all models of the Liebert® GXT4 is “Auto Sensing - 50 Hz or 60Hz – Bypass
Enabled.”
2.8.6 Active ECO Mode
All Liebert® GXT4 models can operate in Active ECO Mode. In this mode, the connected equipment is
powered through the bypass path to increase efficiency, reducing the electrical costs.
Active ECO mode keeps the rectifier and inverter operating, allowing the inverter to remain synchronized
to bypass. This synchronization allows the transfer of the connected equipment to UPS inverter power
almost seamlessly if bypass power falls outside the user-set limits. Once bypass power returns within the
acceptable parameters, the UPS will return to Active ECO Mode operation.
The default setting is Active ECO Mode Off.
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3 INSTALLATION
Do not start the UPS until after the installation is finished.
WARNING! Risk of electrical shock. Can cause equipment damage, injury and death. Before
beginning installation, verify that all external overcurrent protection devices are open (Off), and
that they are locked-out and tagged appropriately to prevent activation during the installation,
verify with a voltmeter that power is Off and wear appropriate, OSHA-approved personal
protective equipment (PPE) per NFPA 70E. Failure to comply can cause serious injury or death.
Before proceeding with installation, read all instructions. Follow all local codes.
3.1 What’s Included
•Terminal Block Communication Terminals
•Compact Disk with:
•Configuration Program
•User Manual (electronic version)
•Liebert® IntelliSlot Unity card (IS-UNITY-DP), factory installed
•USB Cable—one, 2m (6-1/2 ft) long
•Rack mounting hardware, including screws, handles and rack slide kit
•Power-distribution box, installed on GXT4.
•Two plastic, tower-stand support-base sets (four pieces)
•Warnings, Safety Instructions booklet and WEEE recycling sheet (ISO 14001 compliance)
NOTE: The GXT4 External Battery Cabinet shipping package includes one battery cabinet, two spacers
for tower configuration and one DC-power cable and rack-mounting hardware, including screws,
handles and mounting rail kit.
3.2 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 packaging list. If there is any discrepancy, contact your local
dealer or your Vertiv representative immediately.
CAUTION: The UPS is heavy (see Specifications on page65). Take proper precautions when
lifting or moving it.
3 Installation 25
3.3 Preparation for Installation
3.3.1 Installation Environment
•Install the UPS indoors in a controlled environment, where it cannot be accidentally turned Off.
The installation environment should meet the specifications listed in Specifications on page65.
•Place it in an area of unrestricted air-flow around the unit, away from water, flammable liquids,
gases, corrosives, and conductive contaminants. Avoid direct sunlight.
NOTE: Operating the UPS in temperatures above 77°F (25°C) reduces battery life.
3.3.2 Installation Clearances
Maintain at least 4in.(100mm) clearance in the front and rear of the UPS. Do not obstruct the air inlets on
the front panel and rear panel of the UPS. Blocking the air inlets reduces ventilation and heat dissipation,
shortening the service life of the unit.
3.4 Installing the UPS
The UPS may be installed as a tower or in a rack, depending on available space and use considerations.
Determine the type of installation and follow the appropriate instructions. See Tower Installation below or
Rack Installation on page28.
After installing the UPS as a tower or in a rack, and before attempting to start-up, you must install the
internal batteries. See Installing the Internal Battery Kit(s) on page28.
NOTE: When installing the UPS or making input and output connections, comply with all relevant
safety codes and standards
3.4.1 Tower Installation
To install the GXT4 as a tower:
1. Take the support bases out of the accessories box.
Figure 3.1 Support bases
NO. DESCRIPTION
1 Support bases
2 Spacers with connectors
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2. If optional, Liebert® external battery cabinets will be connected, take out the spacers shipped
with the battery cabinet.
3. Connect the spacers and the support bases as shown in Figure 3.1 on the previous page. Each
GXT4 requires 2support bases, one in the front and one in the rear.
4. Adjust the direction of the operation and display panel and logo on the GXT4.
a. Remove the front plastic bezel cover as shown the following figure.
b. Pull the operation and display panel gently, rotate it 90 degrees clockwise and snap it
back into position, as shown.
c. Pull the logo on the front plastic bezel cover gently, rotate it 90 degrees clockwise and
snap it back into position.
d. Replace the front plastic bezel cover.
The operation and display panel and logo have been rotated 90 degrees clockwise, for
upright viewing.
Figure 3.2 Remove the front plastic bezel cover and rotate display
NO. DESCRIPTION
1 Remove bezel cover.
2 Rotate display 90 degrees.
5. Place the GXT4 and any battery cabinets on the 2support bases.
6. Now you are ready to install the internal batteries. See Installing the Internal Battery Kit(s) on
the next page.
3 Installation 27
3.4.2 Rack Installation
When installed in a rack enclosure, the GXT4 UPS and external battery cabinets (EBC) must be
supported by a shelf or rack-mount rails. The GXT4 and EBC units ship with all required hardware for
rack-mount installation. Because different rack-mount options install differently, refer to the installation
instructions provided with the rack mount kit being used.
Once the UPS is mounted in the rack, you are ready to install the internal batteries. See Installing the
Internal Battery Kit(s) below.
CAUTION: The GXT4 is heavy. The UPS must be installed as near the bottom of a rack as
possible. If placed too high, it can make the rack top-heavy and prone to tipping over. For unit
weights, see Specifications on page65.
3.4.3 Installing the Internal Battery Kit(s)
The internal-battery kits are packed separately in boxes and are shipped in main box with the GXT4,
which is also in its own box.
1. Loosen and remove the screws on the battery door, as shown in Figure 3.3 below.
2. Lay the battery door and screws aside for reassembly.
3. Unpack the new internal battery pack. Take care not to destroy the packing.
4. Line up and slide in the new internal battery pack.
5. Connect the battery plug and battery receptacle, and ensure that the wires align red-to-red
and black-to-black, see Figure 3.3 below.
Figure 3.3 Removing the front bezel cover and battery door
NO. DESCRIPTION NO. DESCRIPTION
1 Screws, 6 4 Battery connector
2 Battery door 5 Battery receptacle
3 Front bezel
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6. Push the battery wire and internal battery pack into the UPS.
7. Attach the front battery door with the 6 screws.
8. Attach the front plastic bezel cover to the UPS.
3.5 Installing External Battery Cabinets
WARNING! Risk of electric shock. Can cause injury or death. Disconnect all local and remote
electric power supplies before working with the UPS. Ensure that the unit is shut down and
power has been disconnected before beginning any maintenance.
CAUTION: The external battery cabinet(s) are heavy (see Table 9.4 on page71). Take proper
precautions when lifting them.
Optional, Liebert® external battery cabinets (EBC) may be connected to the UPS to provide additional
battery run time. External battery cabinets are placed on one side of the UPS in a tower configuration or
stacked beneath the UPS in a rack configuration.
Figure 3.4 External battery cabinets connected to GXT4
NO. DESCRIPTION NO. DESCRIPTION
1 GXT4 3
Second external-battery connector
permits adding more battery cabinets to
6000-VA GXT4.
2 External battery cabinet (EBC) 4 Cable connects EBC to GXT4.
To install the external battery cabinet(s):
1. Inspect the EBC for freight damage. Report damage to the carrier and your local dealer or
Vertiv representative.
2. Optional rack-mount hardware is shipped with the external battery cabinet and may be
installed at this time.
3 Installation 29
•Securing hardware and slide rails are sold separately. Please contact your local dealer or
Vertiv representative for these additional options and any assistance needed. Fasten the
slides into position with the screws per the instructions included with the slide rails.
3. Use the enclosed support bases for the tower option to prevent tip-over. One additional set of
support-base extensions ships with each EBC.
4. Verify the that the EBC breaker is in the "Off" position.
5. Connect the supplied EBC cable to the rear of the cabinet, then to the rear of the UPS.
6. Turn the EBC breaker to the "On" position.
7. Verify the circuit breaker on the EBC is in the "On" position.
8. Use the included configuration program or the LCD display to program the UPS with the
number of external battery cabinets connected. Instructions for the configuration program are
in Configuration Program on page49.
The UPS is now equipped with additional back-up battery run time. For approximate battery run times,
refer to Table 9.8 on page76.
NOTE: When removing an EBC, the circuit breaker on the rear of the cabinet must be turned off before
disconnecting the cable.
NOTE: If the UPS will be shipped or stored for an extended time, the connector should be
disconnected. This will minimize any stand-by current drain on the batteries and help attain their
design life.
3.6 Connecting Input/Output Power
The GXT4-5000RT208, Liebert GXT4-6000RT208 and Liebert GXT4-6000RTL630 are shipped with a
power distribution box attached. The Liebert GXT4-8000RT208 and Liebert GXT4-10000RT208 are
shipped with a cover plate over the power distribution connector.
Refer to the following instructions for removal and installation.
NOTE: Do not operate the UPS with the power distribution box removed. To shut off all power to this
box and to the load, utility input power must be disconnected.
3.6.1 Installing the Power Distribution Box on 5000VA and 6000VA Models
1. Align the connectors and press the power-distribution box onto the UPS.
2. Hold the box firmly against the UPS and tighten the captive screws except the one over the
maintenance bypass breaker.
3. Turn the output and input breakers "On."
4. Start the UPS according to start-up instructions.
5. Verify that the UPS lamp is illuminated.
6. Turn the maintenance bypass breaker "Off."
7. Insert the maintenance-bypass-interlock bracket behind the captive screw and tighten the
screw.
NOTE: The maintenance bypass breaker interlock bracket must be installed behind the captive screw,
and the screw must be tightened for the UPS to operate in inverter mode.
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3.6.2 Install the Power Distribution Box on8000VAand10,000VAModels
WARNING! Risk of electric shock. Can cause injury or death. The UPS must be shut down or
the load must be transferred to an external maintenance bypass before a power distribution
box may be added, changed or removed. If the UPS will be shut down, the connected load must
be shut down (refer to Shutting Down the GXT4 on page48). If the UPS will be transferred to
maintenance bypass, it must be transferred to an external maintenance bypass. A maintenance
bypass in the UPS frame must not be used. Verify that the GXT4 is shut down and that all local
and remote electric input power has been disconnected before beginning any work on or in the
UPS.
1. With the cover of distribution box removed, press the UPS and distribution box connectors
together. Ensure that the connectors are fully seated.
2. Align the screw holes and press the power distribution box onto the UPS, making sure that the
tabs at the bottom of the box fit into the slots on the UPS.
3. Attach the box to the UPS by installing screws into the two holes at the top of the box.
4. Tighten the screws.
5. Turn the output and input breakers On.
6. Start the UPS according to start-up instructions.
3.6.3 Electrical Connections for the Power-distribution Box
Electrical connections are made through a removable power distribution box that attaches to the rear of
the UPS.
•PD2-HDWR-MBS, PD2-001, PD2-002, PD2-003, PD2-004, PD2-005, PD2-006 and PD2-007
models fit the 5000 and 6000VA models of the Liebert GXT4
•PD2-L630 fits the GXT4-6000RTL630
•PD2-101, PD2-102, PD2-103, PD2-104, PD2-105, PD2-106, PD2-107, PD2-108, PD2-109, PD2-200,
PD2-201, PD2-202, PD2-204models fit the 8000 and 10,000VA models of the Liebert GXT4
The installer must provide an upstream branch circuit breaker. The input circuit breaker on the
distribution box and the output circuit breaker on the rear of the power distribution box disconnect all
power between the main cabinet and the distribution box.
Models equipped with a manual bypass breaker pass bypass power directly to the bypass breaker from
the input terminal block. The input circuit breaker on the distribution box does not disconnect power
from the manual bypass breaker.
UNIT RATING MAXIMUM BREAKER RATING
5000VA
D Type 30A Long Delay
6000VA
8000VA
D Type 60-A Long Delay
10,000VA
Table 3.1 Branch
circuitbreakerratings
3 Installation 31
Figure 3.5 Distribution box electrical connections diagram
Terminal Block Connections
Conduit entry holes are provided on the rear and side of the box. Input and output wiring should not
share the same conduit. We recommend using strain relief when installing the wire.
UPS MODEL
RECOMMENDED
(MAXIMUM)
EXTERNAL
OVERCURRENT
PROTECTION
RECOMMENDED
WIRE
(INCLUDING
GROUND WIRE)
(75°C COPPER
WIRE)
MAXIMUM
WIRE
ACCEPTED
BY
TERMINAL
BLOCK
TERMINAL
TIGHTENING
TORQUE
GXT4-5000RT208
GXT4-6000RT208
GXT4-6000RTL630
30A 10 AWG (4 mm2)8 AWG (6
mm2)
20 in-lb
(2.26 Nm)GXT4-8000RT208
GXT4-10000RT208
60-A 6 AWG (10 mm2)4 AWG (16
mm2)
Table 3.2 Terminal-block Electrical specifications
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Figure 3.6 Terminal block connections
1. We recommend installing a UL489-approved breaker upstream of unit.
2. The installer must provide circuit breaker protection according to local codes. The mains
disconnect should be within sight of the UPS or have appropriate an appropriate lock-out.
Maintain service space around the UPS or use flexible conduit.
3. The installer must provide output distribution panels, circuit breaker protection or emergency
disconnects according to local codes. Output circuits must not share a common conduit with
any other wiring.
4. GXT4 models with a cord-connected input plug that is to be used as the power disconnecting
device must be installed near a wall socket or outlet that is easily accessible per the National
Electric Code / NFPA 70 requirements. Models that qualify are:
•GXT4-6000RTL630 with standard POD
•GXT4-5000RT208 and GXT4-6000RT208 fitted with the optional PODs PD2-001,
PD2-002, PD2-003, PD2-004, PD2-005, PD2-006 and PD2-007.
3.6.4 Removing the Power Distribution Box from5000VAand6000VAModels
1. Manually transfer the connected equipment to the internal bypass.
a. From the main menu select CONTROL, then press Enter.
b. Select TURN ON & OFF and press Enter.
c. Select TURN ON UPS BYPASS and press Enter.
The UPS transfers the connected loads to the internal bypass. (For help, refer to
Performing Manual Bypass on page48.)
d. Loosen the captive screw over the maintenance bypass breaker (see the following figure
for the breaker’s location).
e. Turn the maintenance bypass breaker On.
NOTICE
The load is unprotected from disturbances in the power supply while the UPS is on bypass.
2. Turn the output and input breakers Off.
3. Loosen other captive screws until the power distribution box releases.
3 Installation 33
4. Remove the power distribution box from the UPS and set it aside.
5. On the rear of the panel, loosen the screws of the protective cover for the connectors, slide it
over the connectors, and tighten the screws.
Figure 3.7 Power distribution box removal from 5000VA and 6000VA models
NO. DESCRIPTION
1 Captive screws to loosen.
2 Pigtails removed for clarity.
3 Maintenance bypass breaker
3.6.5 Removing the Power Distribution Cover from8000VAand10,000VAModels
WARNING! Risk of electric shock. Can cause injury or death. The UPS must be shut down or
the load must be transferred to an external maintenance bypass before a power distribution
box may be added, changed or removed. If the UPS will be shut down, the connected load must
be shut down (refer to Shutting Down the GXT4 on page48). If the UPS will be transferred to
maintenance bypass, it must be transferred to an external maintenance bypass. A maintenance
bypass in the UPS frame must not be used. Verify that the GXT4 is shut down and that all local
and remote electric input power has been disconnected before beginning any work on or in the
UPS.
1. Shut down the GXT4 (for help, refer to Shutting Down the GXT4 on page48).
a. From the Main Menu select CONTROL, press Enter, then select TURN ON & OFF.
b. Press the enter key.
c. Select TURN UPS OFF, then press Enter.
Power to the connected loads is now Off.
2. Turn the output and input breakers Off.
3. Support the power distribution box and remove the two screws at the top of the box.
4. Remove the cover for power-distribution box from the UPS and set it aside.
5. If removing a power-distribution box, carefully pull apart the power-distribution-box connector
and the UPS connector.
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Figure 3.8 Power distribution box removal from 8000VA and 10,000VA models
NO. DESCRIPTION
1 Remove screws.
2 Pigtails removed for clarity.
3 Tabs slip into slots on the UPS.
3 Installation 35
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4 OPERATION AND DISPLAY PANEL
The operation and display panel on the front of the GXT4 has control buttons, LED indicators and a
liquid-crystal display (LCD).
Figure 4.1 Operation and display panel
NO. DESCRIPTION NO. DESCRIPTION
1 Fault indicator 6 Enter button
2 Inverter indicator 7 Down button
3 Battery indicator 8 Up button
4 Bypass indicator 9 Escape button
5 ECO mode indicator 10 LCD panel
4.1 LED Indicators
The LED indicators on the front of the operation and display panel are:
•Inverter
•Battery
•Bypass
•ECO Mode
•Fault
Figure 4.1 above, shows the indicators’ locations. Their descriptions and functions are as follows.
4 Operation and Display Panel 37
INDICATOR COLOR DESCRIPTION
Inverter Green On when the inverter is supplying power
Bypass Amber On when the load is supplied by the mains through automatic/manual bypass
Battery Amber On when the load is supplied by the battery
Fault Red On when an error has occurred within the UPS
ECO Mode Green On when the UPS is in ECO Mode
Table 4.1 LED indicators
4.2 Control Buttons
The control buttons are described in the following table.
BUTTON DESCRIPTION
ESC Pressing this button returns to the previous menu or aborts any change in the input data field before confirming.
Up Pressing this button can move the cursor up or increase the value displayed in the input data field. When amenu is
displayed on several screens, pressing the button can scroll up.
Down Pressing this button can move the cursor down or decrease the value displayed in the input data field. When a menu is
displayed on several screens, pressing the button can scroll down.
Enter Pressing this button can enter the next level menu or confirm the parameter setting value.
Table 4.2 Control buttons
4.3 LCD
The LCD panel shows the UPS status and enables changes to the UPS settings by assisting in navigating
through the GXT4 menu (see Menu Structure on the facing page).
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4.4 Menu Structure
The menu structure of the LDCdisplay is shown in the following figure.
Figure 4.2 Menu structure
4 Operation and Display Panel 39
4.4.1 Startup Screen
When the GXT4 is starting up, it initiates a self-test and displays the start-up screen about 10 seconds.
After about 10 seconds, the LCD shows one of the "On" screens. The screen shown depends on whether or
not input power is available.
•When input power is available: TURN ON UPS.
•When input power is not available: ACNOTAVAILABLESTARTONBATTERY?
To turn On the UPS, press the Up or Down button to select YES and press the Enter button. The UPS will
start up, the LCD will display UPS STARTING and then START SUCCESSFUL after the UPS is turned On.
4.4.2 Default Screen
Press any button in the START SUCCESSFUL screen to enter the default interface.
NOTE: Values shown in the default screen will vary depending on installation andconfiguration.
In the default screen, the LCD shows the UPS model, output parameters, input parameters, battery
capacity with run time estimate and load percentage. The UPS operation mode (online/inverter, ECO,
Battery or Bypass) will be indicated by the LED indicators.
If no control button (ESC, Up, Down, Enter) is pressed for 2 minutes, the LCD will enter the screen-saver
mode (back light turns off). It will remain off until a control button is pressed.
4.4.3 Main Menu Screen
Press the Enter button in the default screen to enter the MAIN MENU screen.
To select a sub menu, press the Up or Down button to move the cursor to the required item, then press
the Enter button to enter its sub menu or set its parameter.
Menu options
STATUS Screen
In the MAIN MENU screen, select STATUS to enter the Status Screen, displaying OUTPUT, LOAD,
INPUT, BATTERY and TIME SINCE STARTUP.
CONFIGURATION Screen
Select MAIN MENU > CONFIGURATION to enter the Configuration menu
In the CONFIGURATION screen, press the Up or Down button to move the cursor to the required
item, then press the Enter button to enter a sub menu or set its parameters.
UPS Screen
Select MAIN MENU > CONFIGURATION > UPS to enter the UPS screen. This menu has six screens.
Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.
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Battery Screen
Select MAIN MENU > CONFIGURATION > BATTERY to enter the BATTERY screen. This menu has
four screens.
Press the Up or Down button to increase or decrease the value of the settings, and press the Enter
button to confirm it.
ECO Mode Screen
Select MAIN MENU > CONFIGURATION > ECO MODE to enter the ECO MODE screens.
Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.
Outlet1 Output Control Screen
Select MAIN MENU > 2 CONFIGURATION > 4 OUTLET1 to enter the OUTLET1 screen. This menu has
two sub menus
Select 1 OUTLET CONTROL and press the Enter button to enter the OUTLET CONTROL screen.
Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.
Outlet1 Outlet Setting screen
Select MAIN MENU > 2 CONFIGURATION > 4 OUTLET1 to enter the OUTLET1 screen. This menu has
two sub menus
Select 2 Outlet Setting and press the Enter button to enter the OUTLET SETTING screen.
Outlet2 Screen
The Outlet2 screens are the same as the Outlet1 screens. The same settings are available as on the
Outlet1 screen. If the Outlet2 group will have the same settings as the Outlet1 group, GXT4 offers a
programming shortcut. When configuring the Outlet2 group, select YES and press the Enter button
to apply the Outlet1 settings to the Outlet2 screen.
Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.
LCD screen
Select Main Menu > 2 CONFIGURATION >6 LCD to enter the LCD screen. This menu has two sub
menus, LANGUAGE and COLOR.
Select 1 LANGUAGE and press the Enter button to enter the LANGUAGE screen.
Language screen
GXT4 supports multiple languages. For the list of supported languages and instructions on how to
upload them, refer to the Configuration Program user manual on the included CD.
Color screen
Select 2 COLOR and press the Enter button to enter the COLOR screen.
4 Operation and Display Panel 41
FACTORY DEFAULT screen
Select MAIN MENU > 2 CONFIGURATION > 7 FACTORY DEFAULT to enter the FACTORY DEFAULT
screen.
Control Screen
Select MAIN MENU > 3 CONTROL to enter the CONTROL screen. This screen has three sub menus,
TURN ON & OFF, ALARM CONTROL and BATT TEST.
In the CONTROL screen, press the Up or Down button to move the cursor to the required item, and
press the Enter button to enter its sub menu.
TURN ON & OFF screen
Select MAIN MENU -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen. This
screen shows one of two displays, TURN ON UPS and TURN OFF UPS, depending on the state of the
UPS.
ALARM CONTROL screen
Select MAIN MENU -> 3 CONTROL -> 2 ALARM CONTROL to enter the ALARM CONTROL screen.
This section allows active audible alarms to be silenced.
To completely turn off the audible alarm, select CONFIGURATION >UPS.
BATT TEST screen
Select MAIN MENU -> 3 CONTROL -> 3 BATT TEST to enter the BATT TEST screen.
Log Screen
Select MAIN MENU -> 4 LOG to enter the LOG screen. This screen has two submenus, VIEW LOG
and CLEAR LOG.
CLEAR LOG Screen
Select MAIN MENU > LOG > CLEAR LOG to enter the CLEAR LOG screen.
Press the Up or Down button to move the cursor to the required item. Press the Enter button to
confirm the settings.
ABOUT Screen
Select MAIN MENU> ABOUT to enter the ABOUT screen. The ABOUT screen displays UPS model,
serial number, software version and hardware version.
Network
Select MAIN MENU > NETWORK to enter the NETWORK screen.
The NETWORK screen displays the MAC address and the IPv4 IP address. If the GXT4 is fitted with
an optional Liebert® IntelliSlot Web card (Liebert IS-WEBCARD), the screen will display IPv6 IP
address settings (IPv6 requires configuration).
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4.5 Prompt List
A prompt screen is displayed during the operation of the system to alert you to certain conditions and/or
to require your confirmation of a command or other operation. See the following table for the prompts and
meanings.
PROMPT MEANINGS
Mains Power Restored The mains power returns and the UPS transfers back to mains (AC) mode.
UPS Return From A Low Battery
Condition The UPS transfers back to mains (AC) mode from battery low mode.
UPS Return From Battery Mode The UPS transfers back to mains (AC) mode from battery mode.
UPS Self Test Successful The UPS self-test is successfully performed.
UPS Shutdown Command Received The UPS shut down was initiated through communication.
UPS Turn Off The UPS shuts down and has no output power.
UPS Turn On The UPS starts up successfully and supplies protected power to the load.
UPS Shutdown Process Had Been
Canceled The shutdown command sent through SNMP card to the UPS is canceled,
ECO Mode Enabled The UPS is configured to ECO mode operation,
ECO Mode Disabled The UPS is configured to Online mode, supplying protected power to the load through
the inverter.
UPS Internal Temperature Return To
Normal The internal temperature of the UPS recovers to normal range.
UPS Load Return From Overload The loads are reduced, and the UPS recovers to normalstate from overload.
Load On Inverter The inverter is on and supplies protected power to the load.
Load On ECO Bypass The UPS is on ECO mode; the mains is supplying power to the load directly to reduce
energy usage.
Bypass Power Restored The bypass power recovered and the UPS can now transfer to bypass.
Table 4.3 System prompts and meanings
4 Operation and Display Panel 43
4.6 Warning List
All UPS warning messages are described the following table.
WARNING DESCRIPTION
Mains Power Not Available The mains power is not available, or it cannot satisfy the input requirements for the UPS to operate
from mains power
UPS Batteries Low And
Exhausted Soon The battery capacity is low and will be exhausted soon
UPS Has Switched To
Battery Mode The mains power is abnormal or the PFC side is faulty, the UPS transfers back to Battery mode
Load On Bypass The UPS transfers to Bypass mode, at this point, the input mains power supplies power to the load
directly, and the load is not protected
Input Power Wiring Error L-N line reverse or PE not connected.
Bypass Power Not Available The bypass power is not available, or it cannot satisfythe requirements for the UPS transfers to
bypass
UPS Maintenance Bypass
Output The UPS transfers to maintenance bypass.
AC input not qualified, cannot
start UPS The utility power is not qualified, the inverter cannot be powered up
Output disabled REPO terminal connect error
Table 4.4 Warning list
4.7 Fault List
All UPS fault messages are described the following table.
FAULT DESCRIPTION
UPS Self-Test Failed The battery is bad or weak or not connected.
UPS Overload The UPS is overloaded.
Inverter Out Of Order The inverter has failed.
Battery Weak/Bad The battery is bad or weak.
Output Short Circuit The output connection is short-circuited.
DC Bus Overvoltage The DC bus is faulty.
UPS Overtemperature Overtemperature occurs to the UPS and the UPS will transfer to Bypass mode.
Charger Out Of Order The charger has failed.
Fan Out Of Order At least one fan is failed.
DC Bus Discharge Fail DC-DC failure occurs.
Rectifier Out Of Order Rectifier failure occurs.
Table 4.5 Fault list
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If a fault occurs, the UPS automatically switches to Bypass Mode. The original operating mode will be
maintained only in the case of a battery disconnection fault. The fault message alternates with UPS Mode
once a second, the red fault indicator on the operation and display panel lights up and the alarm sounds
continuously.
If a fault occurs:
1. Enter the ALARM CONTROL screen, and select AUDIBLE ALARM ON or AUDIBLE ALARM OFF
to switch the alarm On or Off.
2. Enter the EVENT LOG screen, and select VIEW LOG to view the entire event log.
NOTE: There will be a short delay before the EVENT LOG screen displays the historical fault log to
allow the log to load.
4 Operation and Display Panel 45
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5 OPERATION
This section describes checks to be made before starting the UPS, how to start the UPS, manual battery
test, manual bypass, shutting down the UPS and disconnecting mains power from the UPS.
NOTE: The GXT4's battery has been fully-charged before delivery, but some charge will be lost during
storage and shipping. To ensure that the battery has adequate reserve power to protect the connected
load, charge the battery for 5 hours before putting the UPS into service.
5.1 Startup Checklist for the GXT4
Before starting the UPS, perform these checks:
1. Check that the input plugs and loads are connected properly and reliably.
2. Check that the internal battery kits are installed.
3. Check that the battery cable is connected properly.
4. Check that the communication cables are connected properly.
5.2 Starting the UPS
1. Have the unit wired by a qualified electrician, or for 5000- and 6000-VA models, plug the UPS
into the appropriate AC outlet.
2. Close the input breaker on the rear of the unit.
3. The UPS will begin the start-up sequence once AC power is present.
NOTE: The UPS will sound an audible alarm, this is normal.
4. On the LCD, press either the Up or Down button once, then press the Enter button to turn On
the UPS.
The UPS will sound the audible alarm again as the output receptacles are now being powered
by the internal bypass, then will sound one more time as the inverter powers the connected
equipment.
5. Check the LCD and LED indicators to ensure that the UPS is operating normally.
6. Check the load percentage on the default screen to ensure that the connected equipment is
not exceeding the UPS’s rated capacity.
The UPS is now providing conditioned and protected power to the connected equipment.
5.3 Performing a Manual Battery Test
To initiate a manual battery test, select MAIN MENU > CONTROL> BATT TEST > START.
•If the battery test results show FAILED, allow the UPS to recharge the batteries for 24 hours.
•Retest the batteries after 24 hours of charging.
•After the batteries have been retested, if the battery test still shows FAILED, contact your local
Vertiv representative or Technical Support.
5 Operation 47
5.4 Performing Manual Bypass
To manually transfer the connected equipment to the internal bypass:
1. From the main menu select Control then press enter.
2. Select TURN ON & OFF and press Enter.
3. Select TURN UPS BYPASS and press Enter. The UPS will transfer the connected loads to the
internal bypass.
If the internal bypass is not available because of input power problems, pressing this button once will be
ignored. Bypass operation is indicated by an audible alarm and illuminated amber Bypass indicator. (If
other indicators are illuminated, refer to Troubleshooting on page61.)
5.5 Shutting Down the GXT4
To shut down the UPS from the LCD:
1. From the Main Menu select CONTROL, press Enter, then select TURN ON & OFF.
2. Press the Enter key.
3. Select TURN UPS OFF, then press Enter. Press either the Up or Down button to move the
cursor to confirm the turn off command and press Enter.
The UPS will sound an audible alarm. This is normal.
4. Power to the connected equipment is now Off.
The UPS display will still be illuminated because the batteries are still being charged. The UPS may now
be disconnected from AC power, and the UPS will completely shut down in approximately 15 seconds.
5.6 Disconnecting Input Power from the GXT4
1. After the UPS has been shut down as detailed in Shutting Down the GXT4 above, disconnect
the input cable from the wall socket.
2. Wait 30 seconds and verify that all indicators have turned Off and the fan has stopped.
This indicates that the power-off is complete.
3. Turn the external battery cabinet breaker switch to the Off position if the UPS has an external
battery cabinet.
After powering Off the UPS, the UPS ceases output and the load is powered Off.
5.7 Placing UPS in Maintenance Bypass
Maintenance Bypass Mode is used when maintenance or replacement is required. To place the unit in
Maintenance Bypass:
1. Place the UPS on internal bypass. This may be done by either of the following methods:
a. Refer to Performing Manual Bypass above.
b. Slide the bracket away from the manual bypass breaker on the rear of the UPS. This
requires loosening the captive screw and sliding the bracket up and away from the
Manual Bypass breaker.
2. Move the Manual Bypass breaker on the rear of the UPS to the bypass position. This requires
loosening the captive screw and sliding the bracket up and away from the Manual Bypass
breaker.
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6 COMMUNICATION
This section describes the communication ports on the rear of the UPS:
•Liebert® IntelliSlot™ port
•USB port (standard B-type)
•Terminal Block Communication
CAUTION: To maintain safety (SELV) barriers and for electromagnetic compatibility, signal
cables should be segregated and run separate from all other power cables.
6.1 Liebert® IntelliSlot Communication Cards
The Liebert® IntelliSlot port accepts the following optional cards:
•Liebert® IntelliSlot Web Card (IS-WEBCARD)
•Liebert® IntelliSlot Unity Card (IS-UNITY-DP)
The Liebert® IntelliSlot Web Card provides SNMP monitoring and control of the UPS across the network.
The Liebert® IntelliSlot Unity Card provides SNMP and/or RS-485 monitoring of the UPS across the
network and/or building management system. The Liebert® IntelliSlot UNITY card also enables
monitoring external temperature, humidity and contact closure inputs using external sensors.
Follow instructions provided with the Liebert IntelliSlot card to configure the UPS or any additional
ancillary product for the Liebert® GXT4. The instructions are available at http://www.VertivCo.com/en-
us/support/.
6.2 USB Port Communication
The standard B-type USB port is used to connect the UPS and network server or other computer system.
A standard B-type USB port is provided to allow connection to a computer or network server. The USB
port can be used to communicate with the GXT4 configuration program (see section Configuration
Program below for details) or the Microsoft Windows shut-down feature.
6.2.1 Configuration Program
The configuration program is on the Liebert® GXT4 CD and can be used instead of making configuration
setting changes from the LCD panel. The configuration program communicates to a computer running a
Microsoft® Windows® operating system via the included USB cable.
For most users, the factory-default settings are adequate. This section give a brief overview of the
features and parameters that are available for modification, as well as the factory-default settings. Should
any changes be necessary, refer to the Configuration Program User Manual that is located on the
included CD for further details.
The configuration program allows these features of the GXT4 to be changed:
•Change and set the display language
•Enable/Disable Auto-Restart (default is Enable)
6 Communication 49
•Select frequency converter operation with a fixed output frequency of 50Hz or 60Hz, bypass
disabled (default is Auto-Select with bypass enabled)
•Set the Low Battery Warning alarm time from 2 to 30minutes (default is 2 minutes)
•Enable/Disable the Auto-Battery test (default is Enable)
•Enable/Disable Auto-Restart after removing Remote shutdown (default is Disable)
•Set the wiring mode of Remote shutdown (default is normally open)
•Set the Auto-Enable output after remote shutdown (default is Disable)
•Set the Auto-Battery test to 8, 12, 16, 20, or 26weeks (default is 8weeks)
•Select the number of external battery cabinets connected to the UPS to adjust the remaining
run time calculated by Vertiv software products (default is zero)
•Select one of multiple output voltages to match various voltages.
UPS MODEL FACTORY DEFAULT SETTING OUTPUT VOLTAGE OPTION
GXT4-6000RTL630 208 VAC 200V, 208V, 220V, 230V, 240V
GXT4-5000RT208
GXT4-6000RT208
GXT4-8000RT208
GXT4-10000RT208
208/120 VAC 200/100V, 208/120V, 220/110V, 230/115V, 240/120V, 220/127V
Table 6.1 Output voltage option
NOTICE
The output voltage settings cannot be changed while the UPS is On and powering connected
loads.
NOTE: Programming the output voltage of the GXT4-5000RT208, GXT4-6000RT208, GXT4-
8000RT208, and GXT4-10000RT208 models to 220/110VAC automatically de-rates both the VA and
Watt ratings to 90% of the units ratings and programming the output voltage to 200/100VAC
automatically derates both the VA and Watt ratings to 80% of the units ratings (refer to Specifications
on page65 for the VA and Watt ratings)
NOTE: This program is compatible with UPS models beginning with ‘GXT4,’ as in ‘GXT4-3000RT230.’ It
is not compatible with earlier versions of the Liebert® GXT UPS.
A computer running Microsoft® Windows 2000®, Windows XP®, Windows Vista®, Windows7 or
Windows 8 is required to set up and run the configuration program.
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6.3 Terminal Block Communication
The Terminal Block includes eight pins, as shown the figure
Figure 6.1 Terminal-block communication pin layout
NO. DESCRIPTION
1 Low battery warning
2 On-battery warning
3 Any mode shutdown
4 Battery mode shutdown
6.3.1 Any Mode Shutdown
The purpose of Any Mode Shutdown is to shut down the UPS output by turning Off the rectifier, inverter
and static switch so that there is no power to the loads.
Any Mode Shutdown can be operated locally or remotely:
•Local Any Mode Shutdown can be performed by shorting the pins in terminal 3.
•Remote Any Mode Shutdown can be performed using a switch mounted at a remote location
and connected to the pins in terminal 3.
NOTE: Remote Power Off will be performed either by NO or NC contact of Any Mode Shutdown,
depending on the settings in the configuration program.
A current-limited source for this optocoupler (+12VDC, 50mA) will be available from the UPS.
The connection to the UPS for remote connection will be via terminal block connector.
Any Mode Shutdown wiring must conform to all national, regional and local wiring regulations.
WARNING! When the Auto-Enable output option is selected and the UPS output is disabled
using Any Mode Shutdown, the GXT4 output can turn On automatically and without warning if
the connection is changed.
6 Communication 51
6.3.2 Battery Mode Shutdown
Battery Mode Shutdown permits shutting down the UPS by turning Off the rectifier, inverter and static
switch so that there is no power to the load when the UPS is On Battery. The auxiliary power for the UPS
will still be active.
Battery Mode Shutdown can be performed locally or remotely:
•Local Battery Mode shutdown can be performed by shorting the pins in terminal 4.
•Remote Battery Mode Shutdown can be performed using a switch mounted in a remote
location and connected to the pins in terminal 4.
NOTE: Remote Power Off will be performed by NO contact.
A current-limited source (+12VDC, 50mA) will be available from UPS.
The connection to the GXT4 for remote connection will be via terminal block connector.
Battery Mode Shutdown wiring must conform to all national, regional and local wiring codes and laws.
This signal must last for 1.5 seconds or longer.
A battery shutdown signal will not cause an immediate shutdown. It will start a 2-minute shutdown
timer. This timer cannot be stopped once triggered. If the mains power returns during this countdown,
the GXT4 will still shut down and must remain shut down for 10 seconds. Whether the UPS turns back
On when the power is restored depends on the auto-restart setting.
6.3.3 On Battery
On Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the
battery this dry contact will be closed.
6.3.4 Low Battery
Low Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from
the battery and has reached the Low Battery Warning time selected in the configuration program, this
dry contact will be closed.
The rated values for the dry contacts for the On Battery and Low Battery signals are:
•Rated Voltage: 30V (AC or DC)
•Rated Current: 300mA
6.4 Remote Emergency Power Off—GXT4-6000RTL630
The UPS is equipped with a Remote Emergency Power Off (REPO) connector.
The user must supply a means of interfacing with the REPO circuit to allow disconnecting the UPS input
feeder breaker to remove all sources of power to the UPS and connected equipment to comply with
national and local wiring codes and regulations.
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Figure 6.2 REPO switch connection diagram
NO. DESCRIPTION
1
UPS ships with REPO jumper installed, allowing the UPS to operate.
Normally-closed switch system (fail-safe)
2
Opening the REPO connection disables the UPS.
Manual restart using the front panel is required after the REPO connection is closed again.
CAUTION: To maintain safety (SELV) barriers and electromagnetic compatibility, signal cables
should be shielded and run separately from power cables.
6.5 Remote Emergency Power Off—GXT4-5000RT208,
GXT4-6000RT208,GXT4-8000RT208, GXT4-10000RT208
The following describes how the UPS ships, and how to install the jumper for various remote emergency
power-off (REPO) configurations.
In all cases, +24V is supplied by the GXT4 UPS.
•The UPS ships with the jumper removed (jumper is in accessory bag.
Figure 6.3 UPS ships without jumper installed
6 Communication 53
•To operate the UPS without a REPO connection, the jumper must be installed as shown in the
figure.
Figure 6.4 UPS jumper installed to operate without REPO
•To operate connected to a normally-closed (NC) REPO connection, the jumper is not installed,
and the connection is wired to a remote switch.
Figure 6.5 UPS wired to NC remote switch
•To operate connected to a normally-open (NO) REPO connection, the jumper and the
NOswitch must be installed as shown in the figure.
Figure 6.6 UPS with jumper installed and wired to NO remote switch
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7 MAINTENANCE
WARNING! Risk of electric shock. Can cause equipment damage, injury and death. A battery
can present a risk of electrical shock and high short-circuit current.
Observe the following precautions when working on batteries:
•Remove watches, rings and other metal objects.
•Use tools with insulated handles.
•Wear rubber gloves and boots.
•Do not lay tools or metal parts on top of batteries.
•Disconnect charging source prior to connecting or disconnecting battery terminals.
•If the battery kit is damaged in any way or shows signs of leakage, contact your Vertiv
representative immediately.
•Handle, transport, and recycle batteries in accordance with local regulations.
•Determine if the battery is inadvertently grounded. If it is inadvertently grounded, remove the
source of the ground. Contact with any part of a grounded battery can result in electrical
shock. The likelihood of such shock will be reduced if grounds are removed during installation
and maintenance (applicable to a UPS and a remote battery supply not having a grounded
supply circuit).
7.1 Replacing the Internal Battery Pack
The GXT4 allows you to replace the internal battery pack safely. Refer to Table 7.1 below, for internal
battery pack part numbers for GXT4:
UPS MODEL NUMBER REPLACEMENT INTERNAL
BATTERY PACK MODEL NUMBER QUANTITY REQUIRED
GXT4-5000RT208
GXT4-6000RT208
GXT4-144VBATKIT 1
GXT4-6000RTL630 GXT4-240VBATKIT 2
GXT4-8000RT208
GXT4-10000RT208
GXT4-288VBATKIT 2
Table 7.1 Replacement internal battery pack model number
7 Maintenance 55
7.1.1 Battery Replacement Procedures
Read all safety cautions before proceeding. A trained user can replace the internal battery pack when the
UPS is always in a restricted access location (such as a rack or server closet). Contact your local dealer or
Vertiv representative to obtain the pricing of the appropriate replacement battery pack.
CAUTION: Risk of explosion if battery is replaced by an incorrect type. Dispose of used
batteries according to the instructions.
1. Remove the front plastic bezel cover from the UPS.
2. Loosen and remove the screws on the battery door, as shown in Figure 7.1 below.
3. Lay the battery door and screws aside for reassembly.
4. Gently pull the battery wire out and disconnect the battery plug and battery receptacle, as
shown in Figure 7.1 below.
Figure 7.1 Removing the front bezel cover and battery door
NO. DESCRIPTION NO. DESCRIPTION
1 Screws, 6 4 Battery connector
2 Battery door 5 Battery receptacle
3 Front bezel
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5. Grasp the battery handle, and pull the internal battery pack out of the UPS, as shown in the
following figure.
Repeat this step if both battery packs will be replaced. Each model has two battery packs.
Figure 7.2 Pull out the battery
NO. DESCRIPTION
1 Internal battery pack (one of two)
2 Battery handles
3 Pull out battery pack with handle.
6. Unpack the new internal battery pack. Take care not to destroy the packing.
Compare the new and old internal battery pack to make sure they are the same type and
model. If so, proceed with 7. If they are different, stop and contact your Vertiv representative, or
Technical Support.
7. Line up and slide in the new internal battery pack.
8. Reconnect the battery plug and battery receptacle.
9. Push the battery wire and internal battery pack back into the UPS.
10. Reattach the front battery door with the 6 screws.
11. Reattach the front plastic bezel cover to the UPS.
NOTE: The internal battery pack is hot-swappable. However, caution should be exercised because
during this procedure the load is unprotected from disturbances and power outages. Do not replace
the battery while the UPS is operating in Battery Mode. This will result in a loss of output power and will
drop the connected load.
7.2 Charging Batteries
The batteries are valve-regulated, non-spillable, lead acid and should be kept charged to attain their
design life. The UPS charges the batteries continuously when it is connected to the utility input power.
If the UPS will be stored for a long time, We recommend connecting the UPS to input power for at least 24
hours every 4 to 6months to ensure full recharge of the batteries.
7 Maintenance 57
7.3 Precautions
Although the Liebert® GXT4 is designed and manufactured to ensure personal safety, improper use can
result in electrical shock or fire. To ensure safety, observe the following precautions:
•Turn Off and unplug the GXT4 before cleaning it.
•Wear rubber gloves and boots.
•Clean the UPS with a dry cloth. Do not use liquid or aerosol cleaners.
•Never block or insert any objects into the ventilation holes or other openings of the GXT4.
•Do not place the GXT4 power cord where it might be damaged.
7.4 Checking UPS Status
We recommend checking the UPS operation status every six months.
•Check if the UPS is faulty: Is the Fault Indicator On? Is the UPS sounding an alarm?
•Check if the UPS is operating in Bypass mode: Normally, the UPS operates in Normal Mode. If it
is operating in Bypass Mode, stop and contact your local Vertiv representative or Technical
Support.
•Check if the battery is discharging: When the utility input is normal, the battery should not
discharge. If the UPS is operating in Battery Mode, stop and contact your Vertiv representative
or Technical Support.
7.5 Checking UPS Functions
NOTE: UPS function check procedures may interrupt power supply to the connected load.
We recommend checking the UPS functions once every 6months.
Back-up the load data before conducting the UPS functions check. Procedures are as follows:
1. Press the Standby/Manual Bypass button to check whether the alarm and indicators are
normal.
2. Press the On/Alarm Silence/Manual Battery Test button to check again whether the indicators
are On and the UPS is operating normally.
3. Press the On/Alarm Silence/Manual Battery Test button for three seconds after Inverter Mode.
The UPS should initiate battery self-test. Check to determine whether the battery is operating
normally. If not, stop and contact your Vertiv representative or Technical Support.
7.6 Replacing the Power Module on8000and10,000VA models
CAUTION: The UPS must be switched to maintenance bypass before personnel begin to
replace the power module.
NOTICE
During the procedure, the connected load will not be protected from power disturbances, such
as spikes, sags and failure.
To remove the UPS power module without shutting off power to the connected load:
1. Place the UPS on internal bypass. This may be done by any of the three following methods:
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a. Refer to Performing Manual Bypass on page48.
b. Slide the bracket away from the maintenance bypass switch on the rear of the UPS; this
requires loosening the captive screw and sliding the bracket away from the maintenance
bypass switch.
2. Move the manual bypass breaker on the rear of the UPS to the bypass position; this requires
loosening the captive screw and sliding the bracket away from the manual bypass switch (see
Figure 2.6 on page18).
3. Open the input circuit breaker on the rear of the UPS (see Figure 2.6 on page18).
4. Open the output circuit breaker on the rear of the UPS (see Figure 2.6 on page18).
5. Remove the top two front plastic bezels by pulling them forward.
6. Remove the power module cover grille and the battery cover grille with the screws securing
them to the frame.
7. Disconnect the slotted battery connectors from the internal battery packs.
8. If additional external batteries are used, disconnect the two external battery connectors.
9. Slide power module restraint lever up out of the locked position.
10. Slide the power module out the front, supporting its weight as it is withdrawn.
Figure 7.3 Removing power module from GXT4 8000 and 10,000VA models
NO. DESCRIPTION
1 Power module partially pulled-out.
11. Insert the replacement UPS power module.
12. Slide the power module restraint lever back into the locked position.
13. Reconnect the slotted internal battery connectors.
14. Reconnect the external battery cables, if used.
15. Reattach both front cover grilles.
16. Reattach the front plastic bezels.
17. Close the input circuit breaker on the rear of the UPS (see Figure 2.6 on page18).
18. Close the output circuit breaker on the rear of the UPS (see Figure 2.6 on page18).
19. Move the bypass breaker on the rear of the UPS back to the INVERTER position (see Figure 2.6
on page18).
7 Maintenance 59
20. Slide the bracket back next to the manual bypass breaker and tighten its thumbscrew.
21. Press the On button on the front panel one time to return the UPS to Normal Mode operation
(see Operation and Display Panel).
NOTE: The power module restraint lever must be fully engaged for the UPS to operate in Normal Mode.
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8 TROUBLESHOOTING
This section indicates various UPS symptoms you may encounter and provides a troubleshooting guide in
the event the UPS develops a problem. Use the following information to determine whether external
factors caused the problem and how to remedy the situation.
8.1 Symptoms that Require Troubleshooting
The following symptoms indicate the UPS is malfunctioning:
•The relative indicators illuminate, indicating the UPS has detected a problem.
•An alarm buzzer sounds, alerting the user that the UPS requires attention.
8.1.1 Faults
When the fault indicator is illuminated, the LCD displays the fault. The faults are described in Table 8.1
below.
DISPLAYED FAULT CAUSE CORRECTIVE STEPS
UPS self test failed The battery is bad or weak. Contact technical support.
UPS shutdown command
received The UPS shuts down through communication. Contact customer service.
UPS overload The UPS is overloaded. Reduce the load and contact technical
support.
Inverter Out of Order The inverter is faulty. Contact technical support.
Battery Weak/Bad The battery is bad or weak. Replace the battery.
Output Short Circuit The output connection is short-circuited. Shut down the equipment and contact
technical support.
DC Bus Overvoltage The DC bus is faulty. Contact technical support.
UPS Overtemperature Over-temperature occurs to the UPS and the UPS will
transfer to Bypass mode.
Reduce the load and contact technical
support.
Charger Out of Order The charger is faulty. Contact technical support.
Fan Out of Order At least one fan is faulty. Contact technical support.
DC Bus Discharge Fail A DC-DC failure occurs. Contact technical support.
Table 8.1 Description of displayed faults
NOTE: If the UPS encounters a fault and no correction attempt is performed within 2 minutes, the LCD
back light will flash (on 1 second and off 1 second) as an alert.
Press any button to exit the alert mode. If no correction attempt is performed on the UPS, the LCD
back light will flash again until the UPS fault is corrected.
8 Troubleshooting 61
8.1.2 Audible Alarm
An audible alarm will sound in conjunction with the visual indicators to indicate a change in UPS
operating status. The audible alarm will sound as described in the following table.
CONDITION ALARM
Battery discharge Half-second beep every 10seconds
Low battery Two half-second beeps every 5seconds
UPS fault, load on bypass 1-second beep every 4seconds
UPS fault, no power to load Continuous
Overload Half-second beep every halfsecond
Battery replacement 2-second beep every 2minutes
Battery loss Continuous
Wiring problem (loss of proper grounding for UPS) Continuous
Bypass reminder 1-second beep every 60seconds
Table 8.2 Audible alarm description
8.2 Troubleshooting UPS Issues
In the event of an issue with the UPS, refer to the following table to determine the cause and solution. If
the fault persists, contact Vertiv Technical Support. See Technical Support on page77
PROBLEM CAUSE SOLUTION
UPS fails to
start
UPS is short-circuited or
overloaded
Ensure UPS is Off. Disconnect all loads and ensure nothing is lodged in output
receptacles. Ensure loads are not defective or shorted internally.
Batteries are not charged
enough or not connected
Check to ensure the internal battery is connected. If it is not, make the connection and
try to start the unit. If the battery is connected, leave the UPS connected to input power
for 24hours to recharge batteries, then try to start the unit.
Battery
indicator is
illuminated
UPS is not plugged in UPS is operating from battery mode. Ensure UPS is securely plugged into the wall
receptacle.
UPS input protection fuse
has blown/opened
UPS is operating from battery mode. Save data and close applications. Replace UPS input
fuse, then restart UPS.
Mains power is out of
tolerance
UPS is operating from battery mode. Save data and close applications. Ensure mains
supply voltage is within acceptable limits for UPS.
UPS has
reduced
battery
backup
time
Batteries are not fully
charged Keep UPS plugged in continuously at least 24 hours to recharge batteries.
UPS is overloaded Check load level indicator and reduce the load on the UPS.
Table 8.3 Troubleshooting table
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PROBLEM CAUSE SOLUTION
Batteries may not be able
to hold a full charge due to
age
Replace batteries. Contact your local dealer, Vertiv representative or Technical Support
for replacement battery kit.
Battery
indicator is
flashing.
Battery source is not
available; continuous horn.
Check battery connections, completely power down and restart UPS.
NOTE: If the battery circuit opens while the UPS is running, it will be detected when the
next battery test is performed.
Bypass
indicator is
flashing.
Because the voltage or
frequency is outside
acceptable limits, the
bypass is disabled.
The AC input powers the PFC input and serves as the bypass source. If the AC is present
but the voltage or frequency exceeds the acceptable range for safe operation with aload,
the bypass will be disabled and this indicator will flash, indicating that the bypass is
unavailable.
Table 8.3 Troubleshooting table (continued)
When reporting a UPS issue to Vertiv, include the UPS model and serial number. These are located in
several places for your ease of location:
•on the top panel (rack mount orientation)
•the left side (tower orientation)
•the rear panel
•on the front of the unit behind the front plastic bezel
•on the LCD select Main Menu > About.
8 Troubleshooting 63
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9 SPECIFICATIONS
MODEL NUMBER GXT4-5000RT208 GXT4-6000RT208 GXT4-8000RT208 GXT4-10000RT208
MODEL RATING 4000W/5000VA 4800W/6000VA 7200W/8000VA 9000W/10000VA
Dimensions, Rack Mount, W x D x H
Unit, in. (mm) 16.9 x 26.1 x 6.8 (430 x 662 x 173) 16.9 x 26.5 x 10.3 (430 x 672 x 261)
Shipping, in. (mm) 35 x 27 x 26 (889 x 686 x 661) 35 x 27 x 32 (889 x 686 x 813)
Weight lb (kg)
Unit, lb (kg) 131.8 (59.8) 212.7 (96.7)
Shipping, lb (kg) 202.8 (92) 297.6 (135)
Input AC Parameters
Nominal Operating Frequency 50 or 60Hz (Factory Default is 60Hz)
Factory Default VAC 120/208VAC at 120 degrees 120/208VAC at 120 degrees
L1-L2 Factory Default Input Phase Angle 120 degrees 120 degrees
Allowable Input Phase Angle
120, 180, 240 degrees, auto-sensing on application of alternating current
(Restrictions for L-N voltages other than 120-VAC)
Factory Default L1-N, L2-N VAC 120 VAC nominal
User Configurable L1-N, L2-N VAC 100/110/115/120VAC (can be modified with configuration program)
Input Frequency w/o Battery Operation 40 - 70 Hz
Input Power Connection Hard-Wired Terminal Block 3W + G (L-L-N-G)
L1-N, L2-N Maximum Allowable VAC 150VAC
Output AC Parameters
Factory Default VAC 120/208VAC @ 120 degrees
L1-L2 Factory Default Output Phase Angle 120 degrees
Allowable Output Phase Angle 120, 180, 240 degrees, auto-sensing on initial application of input AC
Factory Default L1-N, L2-N VAC 120-VAC nominal
User Configurable L1-N, L2-N VAC 100/110/115/120/127VAC, ±2%
L1-N, L2-N, Operating Load Range
105% to 130% 1 Minute
131% to 150% 10 seconds
151% to 200% 1 second
>200% (impact load) At least 5 cycles
Bypass Protection Limits
Disable Bypass Operation If input voltage exceeds ±15% of the nominal voltage
Table 9.1 Specifications for 5000 to 1000VA models
9 Specifications 65
MODEL NUMBER GXT4-5000RT208 GXT4-6000RT208 GXT4-8000RT208 GXT4-10000RT208
MODEL RATING 4000W/5000VA 4800W/6000VA 7200W/8000VA 9000W/10000VA
Re-Enable Bypass Operation If input voltage returns to within ±10% of nominal output voltage
Disable Bypass Operation When the input frequency prevents synchronous operation
Table 9.1 Specifications for 5000 to 1000VA models (continued)
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MODEL NUMBER GXT4-5000RT208 GXT4-6000RT208 GXT4-8000RT208 GXT4-10000RT208
MODEL RATING 4000W/5000VA 4800W/6000VA 7200W/8000VA 9000W/10000VA
Environmental
Operating Temp, °F (°C) 32 to 104 (0 to 40)
Storage Temp, °F (°C) 5 to 122 (-15 to 50)
Relative Humidity 0% to 95%, non-condensing
Operating Elevation Up to 10,000 ft. (3000 m) at 77°F (25°C) without derating
Audible Noise less than 55dBA at 3.2ft. (1m) rear; less than 50dBA at 3.2ft. (1m) front and sides
Agency
Safety UL 1778, c-UL Listed
RFI/EMI FCC Class A
Surge Immunity IEEE/ANSI C62.41 Category A & B
Transportation ISTA Procedure 1E
Table 9.1 Specifications for 5000 to 1000VA models (continued)
MODEL NUMBER GXT4-6000RTL630
MODEL RATING 4200W/6000VA
Dimensions, Rack Mount, W X D X H, in. (mm)
Unit 16.9 x 22.6 x 8.5 (430 x 574 x 217)
Shipping 35 x 27 x 29 (889 x 686 x 737)
Weight, lb (kg)
Unit 132.2 (60)
Shipping 216.5 (98)
Input AC Parameters
Nominal Operating Frequency 50 or 60Hz (Factory Default, 60)
Factory Default VAC 208VAC
User Configurable VAC
208/220/230/240VAC
(may be modified with configuration program)
Operating Voltage Range Without Battery Operation 176 – 280VAC
Maximum Allowable VAC 280VAC
Input Frequency Without Battery Operation 40 - 70Hz
Input Power Connection L6-30P Plug (on PD-L630 power distribution box)
Output AC Parameters
Table 9.2 Specifications—Liebert GXT4-6000RTL630
9 Specifications 67
MODEL NUMBER GXT4-6000RTL630
MODEL RATING 4200W/6000VA
Factory Default VAC 208
Output Connections
(2) L6-20R and (2) L6-30R on 12" (300mm) cords
(on PD-L630 power distribution box)
Frequency 50 Hz or 60Hz, Nominal
Waveform Sinewave
Duration Inverter Will Support Rated Load
105% to 130% 1 Minute
131% to 150% 10 seconds
151% to 200% 1 second
>200% (impact load) At least 5 cycles
Bypass Protection Limits
Disable Bypass Operation If input voltage exceeds ±15% of the nominal voltage
Re-Enable Bypass Operation If input voltage returns to within ±10% of nominal output voltage
Disable Bypass Operation When the input frequency prevents synchronous operation
Environmental
Operating Temp, °F (°C) 32 to 104 (0 to 40); No Derating
Storage Temp, °F (°C) 5 to 122 (-15 to 50)
Humidity 0% to 95% Relative Humidity, non-condensing
Operating Elevation Up to 10,000 ft. (3000 m) at 77°F (25°C) without derating
Audible Noise
Less than 55dBA at 3.2ft. (1m) rear;
Less than 50dBA at 3.2ft. (1m) front and sides
Agency
Safety UL 1778, c-UL Listed
EMI/EMC FCC Class A
ESD EN61000-4-2
Radiated Susceptibility EN61000-4-3
Electrical Fast Transient EN61000-4-4
Surge Immunity EN61000-4-5
Transportation ISTA Procedure 1E
Table 9.2 Specifications—Liebert GXT4-6000RTL630 (continued)
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MODEL NUMBER GXT4-144VBATKIT GXT4-240VBATKIT GXT4-288VBATKIT
USED WITH UPS MODEL GXT4-5000RT208
GXT4-6000RT208 GXT4-6000RTL630 GXT4-8000RT208
GXT4-10000RT208
Dimensions, Rack Mount, W x D x H, in (mm)
Unit
8.1 x 19.3 x 2.8
(206 x 490 x 70)
7.2 x 15.4 x 4.4
(184 x 390 x 113)
8.1 x 19.7 x 5.3
(207 x 500 x 135)
Shipping
10.3 x 23.7 x 12.2
(262 x 602 x 310)
10.3 x 18.4 x 7
(262 x 467 x 178)
9.5 x 23.9 x 12.2
(242 x 607 x 310)
Weight lb (kg)
Unit 75.8 (34.4) 45.4 (20.6) 71.1 (32.3)
Shipping 81.1 (36.8) 50.7 (23) 76.4 (34.7)
Type Valve-regulated, non-spillable, flame retardant, lead acid
Quantity x V x Rating 2 x 6 x 12V x 9.0 AH 2 x 10 x 12V x 5.0AH 2 x 12 x 12V x 9.0 AH
Battery Mfr / Part # CSB UPS12460F2 CSB/HR1221W CSB UPS12460F2
Backup Time See Table 9.8 on page76
Recharge Time 5 hours to 90% capacity after full discharge into 100% load
Table 9.3 Internal battery cabinet specifications
9 Specifications 69
MODEL NUMBER GXT4-144VBATKIT GXT4-240VBATKIT GXT4-288VBATKIT
USED WITH UPS MODEL GXT4-5000RT208
GXT4-6000RT208 GXT4-6000RTL630 GXT4-8000RT208
GXT4-10000RT208
Environmental
Operating Temp, °F (°C) 32 to 104 (0 to 40)
Storage Temp, °F (°C) 5 to 122 (-15 to 50)
Relative Humidity 0% to 95%, non-condensing
Operating Elevation Up to 10,000 ft. (3000 m) at 77°F (25°C) without derating
Agency
Safety UL 1778, c-UL Listed
RFI/EMI FCC Class A
Transportation ISTA Procedure 1A
Table 9.3 Internal battery cabinet specifications (continued)
MODEL NUMBER GXT4-144VBATT GXT4-240VBATT GXT4-288VBATT
USED WITH UPS MODEL GXT4-5000RT208
GXT4-6000RT208 GXT4-6000RTL630 GXT4-8000RT208
GXT4-10000RT208
Dimensions, W x D x H, in. (mm)
Unit (with bezel)
16.9 x 26.1 x 3.3
(430 x 662 x 85)
16.9 x 22.6 x 6.8
(430 x 574 x 173)
16.9 x 26.5 x 6.8
(430 x 672 x 173)
Shipping
25.8 x 34.3 x 12.3
(655 x 872 x 312)
20.9 x 29.3 x 18.7
(530 x 745 x 475
24.5 x 33.1 x 18.7
(622 x 842 x 475)
Weight, lb (kg)
Unit 99.9 (45.3) 143.3 (65) 167.6 (76.2)
Shipping 121 (55) 176.4 (80) 198 (90)
Battery Parameters
Type Valve-regulated, non-spillable, lead acid
Qty x V 2 x 6 x 12V x 9.0 AH 2 x 10 x 12V x 9.0AH 2 x 12 x 12V x 9.0 AH
Battery Mfr., Part # CSB UPS12460F2; CSBHR1234WF2
Backup Time See Table 9.8 on page76
Environmental
Operating Temp, °F (°C) 32 to 104 (0 to 40)
Storage Temp, °F (°C) 5 to 122 (-15 to 50)
Relative Humidity 0% to 95%, non-condensing
Table 9.4 External battery cabinet specifications
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MODEL NUMBER GXT4-144VBATT GXT4-240VBATT GXT4-288VBATT
USED WITH UPS MODEL GXT4-5000RT208
GXT4-6000RT208 GXT4-6000RTL630 GXT4-8000RT208
GXT4-10000RT208
Operating Elevation Up to 10,000 ft. (3000 m) at 77°F (25°C) without derating
Agency
Safety UL 1778, c-UL Listed
RFI/EMI FCC Class A
Transportation ISTA Procedure 1A
Table 9.4 External battery cabinet specifications (continued)
PD MODEL
#PD2-HDWR-MBS PD2-
001
PD2-
002
PD2-
003
PD2-
004
PD2-
005
PD2-
006
PD2-
007 PD2-L630*
Dimensions, W x D x H, in (mm)
Unit 5.2x15.5x3.5 (132x393x88)
4.7x13.2x4.1
(119x335x105)
Shipping 9.5x20.7x9.1 (242x527x230)
10.2x18.4x8.7
(260x467
x222)
Weight, lb (kg)
Unit 6 (2.7) 8.8 (4) 8.6 (3.9) 8.6 (3.9) 9.9 (4.5) 10.6
(4.8) 9.5 (4.3) 9.5 (4.3) 8.8 (4)
Shipping 8.2 (3.7) 11 (5) 10.8
(4.9)
10.8
(4.9) 12.1 (5.5) 12.8 (5.8) 11.7 (5.3) 11.7 (5.3) 11 (5)
Electrical Specifications
Amp Rating 30A 2-pole input breaker for UPS input power
Input Power
Connections
Hard-Wired
Terminal
Block 3W + G (L-L-
N-G)
(1) L14-30P on a 10.5 ft. (3.2m) cord (1) L6-30P
Output
Power
Connection
Hard-Wired
Terminal
Block 3W + G (L-L-
N-G)
(4) 5-
20R
(1) L14-
30R
(1) L6-
30R
(2) 5-
20R
(2) L6-
20R
(4) 5-
20R
(2) L6-
30R
(4) L5-
20R
(2) L5-
30R
(4) L5-
20R
(2) L6-
30R
(4) L6-
20R
(2) L5-
20R
(2) L6-
20R
(2) L6-30R
(2) L6-20R
*PD2-L630 is only compatible with the GXT4-6000RTL630 UPS model
Table 9.5 Power-distribution Specifications
forGXT4-5000RT208,GXT4-6000RT208andGXT4-6000RTL630*
9 Specifications 71
POD MODEL # PD2-101 PD2-102 PD2-103 PD2-104 PD2-105 PD2-106
Dimensions, W x D x H, in. (mm)
Unit 7.4 x 5.7 (188 x 145)
Shipping 11.9 x 20.6 x 8.7 (302 x 522 x 220)
Weight, lb (kg)
Unit 4.4 (2) 6.6 (3) 6.6 (3) 6.6 (3) 4.4 (2) 6.6 (3)
Shipping 6.6 (3) 8.8 (4) 8.8 (4) 8.8 (4) 6.6 (3) 8.8 (4)
Electrical Specifications
Amp Rating 2-pole 60-A Input Breaker
Input Power
Connection
Custom Connector 3W + G(L-L-N-G) to UPS
Output Power
Connections
(2) L6-30R
(8) 5-15/20R
(4) L6-20R
(4) 5-15/20R
(4) 5-15/20R
(4) L6-30R
(4) 5-15/20R
(2) L6-30R
(2) L6-20R
(4) 5-15/20R
(2) L5-30R
(2) L5-20R
(4) L6-20R
(4) L5-20R
Table 9.6 Power distribution box specifications
forGXT4-8000RT208andGXT4-10000RT208
POD MODEL # PD2-107 PD2-108 PD2-109 PD2-200 PD2-201 PD2-202 PD2-204
Dimensions, W x D x H, in. (mm)
Unit 7.4 x 5.7 (188 x 145)
Shipping 11.9 x 20.6 x 8.7 (302 x 522 x 220)
Weight, lb (kg)
Unit 6.6 (3) 4.4 (2) 6.6 (3)
Shipping 8.8 (4) 6.6 (3) 15 (6.8)
Electrical Specifications
Amp Rating 2-pole 60-A Input Breaker
Input Power
Connection
Custom Connector 3W + G(L-L-N-G) to UPS
Output Power
Connections
(4) L5-20R
(4) 5-15/20R
(2) L6-20R
(2) L6-30R
(2) L14-30R
(4) IEC320-C19
(4) IEC320-C13
(2) IEC320-C19
(8) IEC320-C13
(12) IEC320-C13
(2) IEC309-32A
(4) IEC320-C13
Table 9.7 Power distribution box specifications forGXT4-8000RT208andGXT4-10000RT208
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NUMBER OF
EXTERNAL
BATTERY
CABINETS
LOAD
PERCENT OF
CAPACITY
208/120 VAC RT MODELS 208 VAC RT
MODEL
5 KVA 6 KVA 8 KVA 10 KVA 6 KVA (L630)
Internal Battery
10% 134 112 121 98 92
20% 65 52 63 48 39
30% 39 31 42 32 34
40% 27 21 29 22 26
50% 20 15 22 16 18
60% 16 12 18 13 16
70% 12 9 14 10 12
80% 10 8 11 7 10
90% 8 6 9 7 9
100% 7 5 8 5 8
Internal Battery
+ 1 External
Battery Cabinet
10% 281 235 256 206 265
20% 144 119 142 113 124
30% 92 77 100 79 99
40% 67 53 72 55 67
50% 50 40 55 42 52
60% 40 32 44 34 44
70% 33 26 36 27 34
80% 27 21 29 21 27
90% 23 18 25 20 24
100% 20 15 22 16 21
Table 9.8 Battery run time, minutes
9 Specifications 73
NUMBER OF
EXTERNAL
BATTERY
CABINETS
LOAD
PERCENT OF
CAPACITY
208/120 VAC RT MODELS 208 VAC RT
MODEL
5 KVA 6 KVA 8 KVA 10 KVA 6 KVA (L630)
Internal Battery
+ 2 External
Battery Cabinets
10% 441 367 400 322 462
20% 222 186 217 175 223
30% 146 120 156 124 177
40% 108 88 114 90 126
50% 84 68 90 72 98
60% 68 53 77 57 85
70% 55 43 59 45 66
80% 46 38 49 37 52
90% 40 32 43 35 48
100% 36 27 39 29 43
Internal Battery
+ 3 External
Battery Cabinets
10% 603 505 550 444 671
20% 304 252 298 236 323
30% 198 166 210 170 254
40% 147 122 156 126 182
50% 117 95 126 100 145
60% 95 78 106 82 126
70% 81 63 86 68 100
80% 68 53 72 53 83
90% 57 45 61 50 74
100% 50 40 55 42 65
Table 9.8 Battery run time, minutes (continued)
Vertiv | Liebert® GXT4™ Installer/User Guide
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NUMBER OF
EXTERNAL
BATTERY
CABINETS
LOAD
PERCENT OF
CAPACITY
208/120 VAC RT MODELS 208 VAC RT
MODEL
5 KVA 6 KVA 8 KVA 10 KVA 6 KVA (L630)
Internal Battery
+ 4 External
Battery Cabinets
10% 766 638 696 566 883
20% 389 322 381 302 429
30% 252 208 269 214 336
40% 188 156 198 161 237
50% 149 122 161 129 190
60% 122 100 136 107 166
70% 104 84 111 87 135
80% 88 72 92 72 111
90% 78 60 83 67 100
100% 68 53 75 56 90
Internal Battery
+ 5 External
Battery Cabinets
10% 939 783 854 685 1108
20% 476 393 467 370 538
30% 307 255 329 262 420
40% 227 190 239 195 296
50% 181 149 195 156 235
60% 149 122 166 130 207
70% 127 104 136 109 168
80% 110 88 114 88 139
90% 95 78 102 84 126
100% 84 67 91 73 115
Table 9.8 Battery run time, minutes (continued)
9 Specifications 75
NUMBER OF
EXTERNAL
BATTERY
CABINETS
LOAD
PERCENT OF
CAPACITY
208/120 VAC RT MODELS 208 VAC RT
MODEL
5 KVA 6 KVA 8 KVA 10 KVA 6 KVA (L630)
Internal Battery
+ 6 External
Battery Cabinets
10% 1116 931 1015 814 1329
20% 564 468 553 440 643
30% 364 301 389 310 506
40% 268 223 285 229 356
50% 212 177 228 184 283
60% 177 145 194 153 247
70% 149 122 160 129 201
80% 130 106 136 106 167
90% 114 91 119 100 152
100% 101 82 110 86 139
Run times in this table are approximate. They are based on new, fully charged standard battery modules at a temperature of 77°F
(25°C) with 100% resistive UPS loading. Run times listed above can vary by ±5% due to manufacturing variances of the individual
batteries.
Table 9.8 Battery run time, minutes (continued)
9.1 Auto-Learning Battery Run Times
As batteries age, the estimated run times may become less accurate. The Liebert® GXT4 is programmed
to “learn” from a full battery discharge and modify the estimated run time for the measured battery
capacity. This can improve accuracy and compensate for aging batteries or batteries that operate at
different ambient temperatures.
The UPS will update the anticipated run time calculation only under certain conditions.
•The UPS must have a steady load that is greater than 20%.
•The UPS must be at 100% charge at the start of a battery discharge.
•The battery discharge must continue uninterrupted until the batteries reach their end-of-
discharge voltage.
If all conditions are not met, the run time calculation will not be modified.
If the configuration program is used to change the number of battery cabinets, then the values in the
battery above table will be restored. This will override any value that is auto-learned.
Vertiv | Liebert® GXT4™ Installer/User Guide
76
APPENDICES
Appendix A: Technical Support
Our Technical Support staff is ready to assist you with any installation or operating issues you may
encounter with your Liebert® product. Please call or e-mail us:
In Europe, Middle East, and Asia:
EMEA Multi-Language Technical support:
e: eoc@vertivco.com
p: Toll free 0080011554499
p: Toll +39 02 98250222
In the United States:
Technical support:
e: liebert.upstech@vertivco.com
p: 1-800-222-5877 menu option 1
Monitoring support:
e: liebert.monitoring@vertivco.com
p: 1-800-222-5877 menu option 2
Warranty support:
e: microups.warranty@vertivco.com
p: 1-800-222-5877 menu option 3
77
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Vertiv | Liebert® GXT4™ Installer/User Guide
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are trade names, trademarks or registered trademarks of their respective owners. While every precaution has been taken to ensure accuracy and
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omissions. Specifications are subject to change without notice.
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