Vertiv Liebert GXT MT+ EX 1-3 kVA User manual

Vertiv™ Liebert® GXT MT+ EX
1-3 kVA
User Manual

Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual
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If you encounter any installation or operational issues with your product, check the pertinent section of
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Visit https://www.vertiv.com/en-us/support/ for additional assistance.
The information contained in this document is subject to change without notice
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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.
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

TABLE OF CONTENTS
1 Important Safety Instructions 1
2 Important Safety Warning 3
2.1 Transportation 3
2.2 Preparation Before Installation 4
2.3 Product Installation 4
2.4 Operation 5
2.5 Maintenance, Service, and Faults 5
3 Installation and Setup 7
3.1 Rear Panel View 7
3.2 Setup the UPS 9
4 Operations 13
4.1 Button Operation 13
4.2 LCD Panel 14
4.3 Audible Alarm 16
4.4 LCD Display Wordings Index 17
4.5 UPS Settings 18
4.6 Operating Mode Description 21
4.7 Faults Reference Code 23
4.8 Warning Indicator 24
5 Storage and Maintenance 25
6 Troubleshooting 27
7 Technical Specifications 29
8 Appendices i
Appendix A: UPS Installation Guide i
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1 Important Safety Instructions
IMPORTANT! This manual contains important safety instructions that must be followed during the
installation and maintenance of the Vertiv™ Liebert® GXT MT+ EX 1-3 kVA UPS. Read this manual
thoroughly, and the safety and regulatory information are available at Compliance Regulatory Info.
Purpose of the Document
This document applies to Vertiv™ Liebert® GXT MT+ EX 1-3 kVA UPS and cooling solutions which maintain
optimal environmental control of technological ecosystems at minimal operating costs. This document
gives an overview of the specifications, installation, commissioning, and maintenance procedures with
troubleshooting from the user's perspective. The figures used in this document are for reference only.
Please read this manual carefully before installing, maintaining, and troubleshooting.
Styling used in this Guide
The styles used in the manual will be defined as mentioned in the following table:
Situation Description
Warning/Danger/Caution
WARNING! The Warning/Danger/Caution note indicates a hazardous or potentially
harmful situation that can result in death or injury. It also indicates instructions that
need to be adhered to, failing which may result in danger and safety issues thereby
having an adverse effect on the reliability of the device and security. Even for
practices not related to physical injury, to avoid equipment damage, performance
degradation, or interruption in service, follow the warning instruction.
Note
NOTE: The Note section indicates additional and useful information. It also calls attention to
best practices and industry-best protocols that are standardized and help make maximum
utilization of the resources at hand. Helpful information related to the product also comes under
the Note heading, helping the users with the definitions, concepts, and terminologies used in
the manual.
Version History
Version Revision Date Remarks
V1 12/06/2023 Initial Release
1 Important Safety Instructions 1
Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

1 Important Safety Instructions
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2 Important Safety Warning
It is recommended to comply with all warnings and operating instructions in this manual strictly.
WARNING! Do not operate this unit before reading all safety information and operating
instructions carefully.
WARNING! Read this product manual and the safety precautions carefully, before installing,
and commissioning this unit. Failure to comply with these precautions might risk the
personnel safety or put the product in danger.
This manual contains information concerning the installation and operation of the Vertiv™ Liebert® GXT
MT+ EX 1-3 kVA UPS (hereinafter referred to as UPS). It is recommended to read this manual carefully prior
to installation.
It is recommended to read the safety precautions very carefully before operating the unit in order to
minimize the risk of any accident. The words "Caution," "Note," and "Warning" used in this user manual and
on the product do not represent all the safety precautions to be observed and are only a supplement to the
various safety precautions. Therefore, installation and operation personnel must receive the required
training and follow the correct operations and all the safety points before operation.
When operating the Vertiv products, the operation personnel must observe the safety rules in the industry,
the general safety points, and special safety instructions provided by the Vertiv.

2.1 Transportation
• It is recommended to transport the UPS system only in the original package to protect against
shock and impact.
2 Important Safety Warning 3
Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

2.2 Preparation Before Installation
• If the UPS system is relocated from a cold environment to a warm environment, condensation
may occur.
WARNING! The UPS system must be completely dry before installation.
It is recommended to schedule and allow at least two hours for the UPS system to adopt to
the surroundings.
WARNING! Do not install the UPS system near water or in a moist environment.
WARNING! Do not install the UPS system where it would be exposed to direct sunlight or near
the heater.
WARNING! Do not block ventilation holes in the UPS housing.

2.3 Product Installation
WARNING! Do notconnectequipmentwhich wouldoverloadtheUPSsystem(e.g.laser
printers) to the UPS output sockets. The load on the ups system should not exceed the rated
capacity of the UPS. Overloading of UPS can impact on UPS operation.
• Cabling should be carried out in such a way that no one can step on or trip over them
accidentally.
• Donotconnectdomestic appliancessuchashairdryers toUPSoutput sockets.
• TheUPScanbeoperatedbyanyindividual withnoprevious experience.
• ConnecttheUPSsystem onlytoashockproof earthing outletwhich mustbeeasily accessible
and mustbe located nearby the UPS system.
• It is recommended to use only VDE-tested, CE-marked mains cable (e.g. the mains cable of your
computer)toconnecttheUPSsystem tothebuildingwiringoutlet(shockproofoutlet).
• It is recommended touseonlyVDE-tested,CE-markedpowercables to connect the loads to the
UPS system.
• When installing the unit, ensure that the sum of the leakage current of the UPS and the
connected devices should not exceed 3.5 mA.

2 Important Safety Warning
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

2.4 Operation
WARNING! Do notdisconnectthemainscableontheUPSsystem orthebuildingwiringoutlet
(shockproofsocketoutlet)duringoperationssince thiswouldcancel theprotective earthing
of the UPS system and of all connected loads.
• The UPS system can function as its own internal current source (batteries).
CAUTION: The UPS output sockets may be electrically live even if the UPS system is not
connected to the building wiring outlet. It is recommended to first press the OFF/Enter
button to disconnect the mains supply in order to completely disconnect the UPS system.
• Prevent fluidsorany otherforeign objectsfrom entering theUPS system.

2.5 Maintenance, Service, and Faults
• TheUPSsystemoperates withhazardousvoltages.The maintenance, service, and repairs
mustbecarriedoutonlyby authorized trained maintenance personnel.
CAUTION: Risk of electric shock. Even after the unit is disconnected from the mains (building
wiringoutlet), componentsinsidetheUPSsystem arestillconnected tothe battery and
electrically live and dangerous.
CAUTION: Beforecarryingoutanykindofservice and/or maintenance, disconnect the
batteries and verify that no current is present and no hazardous voltage exists in the
terminals of high-capability capacitors such as BUS-capacitors.
• Only trained engineers with the necessary knowledge of the batteries must be allowed to
replace batteries and supervise operations. Unauthorized access to the batteries must not be
permitted.

CAUTION: Riskofelectricshock. Thebatterycircuit is notisolatedfromtheinputvoltage.
Hazardous voltages may occur between the battery terminals and the ground. Before
touching, ensure that no voltage is present!
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

WARNING! Batteriesmaycauseelectric shockandhaveahighshort-circuitcurrent. It is
recommended to take the precautions listed below, including any additional safety measures
that may be required when working with batteries:
Removewristwatches,rings,andothermetalobjects.
Only use tools with properly insulated grips and handles.
Whenchanging batteries,installthesamenumber andsametypeofbatteries.
WARNING! Do notattempttodisposeofbatteriesbyburningthem.Thiscouldcausea
battery explosion.
WARNING! Do not open or destroy batteries as it can result in the escaping of the
electrolytes that can be toxic and can cause serious injury to the skin and eyes.
• It is recommended to replace the fuse with the same type and ampere rating in order to avoid
fire hazards.
• DonotdismantletheUPSsystem.
2 Important Safety Warning
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

3 Installation and Setup
This chapter describes the list of essential steps needed to be work carried out before installation, including
unpacking, inspection, lifting, hoisting, and transportation of the Vertiv™ Liebert® GXT MT+ EX UPS.

3.1 Rear Panel View
Upon the arrival of the unit at the specified site location, the receiver should arrange the trained personnel
to unpack and inspect the unit. It is recommended that before unpacking, the unit should be brought as
close to the installation site as possible.

Figure 3.1 Rear panel view
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

Parameter Description
1 AC input
2 Inputcircuit breaker
3 USBcommunicationport
4 RS-232communicationport
5 SNMPintelligentslot(option)
6 Externalbattery connection(onlyavailable forLmodel)
7 Outputreceptacles
8 Outputterminal
3 Installation and Setup
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

3.2 Setup the UPS
Step 1: UPS input connection
Plug the UPS into a two-pole, three-wire, grounded outlet only. Avoid using extension cords. The power
cord is supplied in the UPS package.

Step2:UPSoutputconnection
• Forsocket-typeoutputs, connect devicestotheoutlets.
• Forterminal-typeinputsoroutputs, followbelowstepsforthewiring configuration:
a. Removethesmallcoveroftheterminalblock.
b. Suggestusing 14 AWG or2.1 mm2powercords.
c. Uponcompletionofthewiring configuration, ensure that thewires are connected correctly
and properly.
d. Placethesmall coverbackto therearpanel.

Step 3: Communication connection Communication port:
Parameter Description
1 USB port
2 RS-232 port
3 Intelligent slot

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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

It is recommended to connect the communication cable on one end to the USB/RS-232 port and the other
to the communication port of the connected PC to enable unattended UPS shutdown/start-up and status
monitoring.
It is possible to schedule UPS shutdown/start-up and monitor UPS status with the monitoring software
installed in the PC.
The UPS is equipped with an intelligent slot that is suitable for either an SNMP or an AS400 card. The UPS
will provide advanced communication and monitoring options after installation of the either an SNMP or an
AS400 card to the UPS.
NOTE: The USB port and the RS-232 port cannot be active simultaneously.

Step 4: Switch on the UPS
To switch on the UPS, press the ON/MUTE button on the front panel for two seconds.
NOTE: During the first five hours of normal operation, the battery fully charges. Do not anticipate the
battery to be fully charged during this initial charging period.

Step 5: Install software
Install the UPS monitoring software to properly configure UPS shutdown for optimum computer system
protection. It is recommended to insert the CD included (with the UPS packaging) into a CD-ROM drive to
install the monitoring program. If not, follow the procedures below to obtain and install monitoring software
from the Internet:
1. Visit the website http://www.power-software-download.com.
2. To download the program, click the "ViewPower" software icon and then select the suitable
operating system (OS).
3. To install the program, follow the on-screen instructions.
4. When the user restarts the computer, the monitoring program will display an orange plug symbol
located in the system tray, near the clock.

3 Installation and Setup
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

Step 6: External battery connection
To connect an external battery, refer to Figure 3.2 below.

Figure 3.2 External battery connection
Parameter Description
1 External Battery

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4 Operations
4.1 Button Operation

Button Function
ON/Mute Button
lTo switch on the UPS, press and hold the ON/MUTE button for at least 2 seconds.
lMute the alarm: When the UPS is on battery mode, to enable or disable the alarm system,
press and hold this button for at least 5 seconds. However, it will be automatically enabled
when the next set of warnings or errors occur.
lUpkey:In UPS setting mode, press this button to return to the previous selection display.
lSwitchtoUPSself-test mode:To activate the UPS self-testing when in AC mode, ECO
mode, or converter mode, press and hold the ON/MUTE button for 5 seconds.
OFF/Enter Button
lTurnofftheUPS: Under normal power conditions, the UPS will be in standby mode or will
switch to Bypass mode if the Bypass enable setting is enabled by pressing this button.
lConfirmselectionkey:In UPS setting mode, press this button to confirm the settings you
have selected.
Select Button
lSwitchLCDmessage:To change the LCD message for input voltage, input frequency,
battery voltage, output voltage, and output frequency, press this button.
lSettingmode:When the UPS is in standby or bypass mode, press and hold this button for 5
seconds to enter UPS in the setting mode.
lDownkey:In UPS setting mode, press this button to display the next selections.
ON/Mute + Select Button
lWhen the main power is normal, press the ON/Mute and Select buttons simultaneously for
5 seconds to enter bypass mode. The UPS will then enter bypass mode. When the input
voltage is out of the allowed range, this operation will become inapplicable.

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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

4.2 LCD Panel
Parameter Description
1 Load information
2 Mode operation information
3 Warning indicator
4 Fault and warning information/setting operation/backup time setting
5 Mute operation
6 Backup time indicator
7 UPS information
8 Battery information

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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

Display parameter Function
Remaining backup time setting and information
Indicates the remaining backup time in pie chart.
Indicates the remaining backup time in numbers.
H: hours, M: minute, S: second
Setting operation
Indicates the value set in the setting operation.
Fault and warning information
Indicates that the warning situation occurs.
Indicates the warning and fault codes, and the codes are listed in details in the section UPS Settings
4.5 on page18.
Mute operation
Indicates that the UPS alarm is disabled.
UPS information
Indicates the input and output voltage, frequency, battery voltage, load information, and internal
temperature.
Vac: input/output voltage, Vdc: battery voltage, Hz: frequency, %: load level, and °C/°F: temperature.
Load information
Indicates the load level by 0% to 25%, 26% to 50%, 51% to 75%, and 76% to 100%.
Indicates overload.
Indicates the load or the UPS output is short-circuited.
Mode operation information
Table 4.1 LCD Panel Display Function
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual

Display parameter Function
Indicates the UPS is in online mode.
Indicates the UPS is in battery mode.
Indicates the UPS is bypass mode.
Indicates the UPS is in ECO mode.
Indicates the UPS is in converter mode.
Indicates the UPS is charging battery.
Battery information
Indicates the Battery capacity by 0% to 25%, 26% to 50%, 51% to 75%, and 76% to 100%.
Indicates the battery is faulty.
Indicates low battery level and low battery voltage.
Table 4.1 LCD Panel Display Function (continued)

4.3 Audible Alarm
Alarm Sound Output
Battery Mode Alarmingevery4 seconds
LowBattery Alarmingeverysecond
Overload Alarmingtwiceevery second
Fault ContinuouslyAlarming
BypassMode Alarmingevery10 seconds

4 Operations
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Vertiv™ Liebert® GXT MT+ EX 1-3 kVA User Manual