Liebert GXT 2U User Manual

UPStation GXT 2U™

POWER PROTECTION

USER MANUAL

700-3000VA

120V

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . 1

GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

MAJOR COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters . . . 5

Rectifier/Power Factor Correction (PFC) Circuit . . . . . . . . . . . . . . . . . . 5

Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

DC to DC Converter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Dynamic Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

GXT 2U (Rear View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Tower UPS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Rack-Mount UPS Conversion and Installation. . . . . . . . . . . . . . . . . . . . 9

External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CONTROLS AND INDICATORS. . . . . . . . . . . . . . . . . . . . . . . . . 13

ON/Alarm Silence/Manual Battery Test Button . . . . . . . . . . . . . . . . . . 13

Standby/Manual Bypass Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Load/Battery Level Indicators (4 Green, 1 Amber) . . . . . . . . . . . . . . . 14

Fault Indicator LED (Red) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Bypass Indicator LED (Amber) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

UPS ON Indicator LED (Green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Battery Indicator LED (Amber). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

AC Input Indicator LED (Green). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Output Voltage Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Normal Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Battery Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Battery Recharge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

i

COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Communications Interface Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Pin 4 - Remote Shutdown on Battery. . . . . . . . . . . . . . . . . . . . . . . . . . 17

UPS Intelligent Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

CONFIGURATION PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 19

GXT 2U Configuration Program Abilities . . . . . . . . . . . . . . . . . . . . . . . 19

What You Will Need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Internal Battery Replacement Procedures: . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Fuse Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

BATTERY CABINET SPECIFICATIONS . . . . . . . . . . . . . . . . . . . 30

BATTERY RUN TIMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

ii

IMPORTANT SAFETY INSTRUCTIONS

WARNING

!

OPENING OR REMOVING THE COVER MAY EXPOSE
YOU TO LETHAL VOLTAGES WITHIN THIS UNIT
EVEN WHEN IT IS APPARENTLY NOT OPERATING
AND THE INPUT WIRING IS DISCONNECTED FROM
THE ELECTRICAL SOURCE. OBSERVE ALL
CAUTIONS AND WARNINGS IN THIS MANUAL.
FAILURE TO DO SO MAY RESULT IN SERIOUS
INJURY OR DEATH. REFER ALL UPS AND BATTERY
SERVICE TO QUALIFIED SERVICE PERSONNEL. DO
NOT ATTEMPT TO SERVICE THIS PRODUCT
YOURSELF. NEVER WORK ALONE.

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions. Read all safety, instal­lation, and operating instructions before operating the Uninterruptible
Power System (UPS). Adhere to all warnings on the unit and in this man­ual. Follow all operating and user instructions. Individuals without previ­ous training can install and operate this equipment.

It 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. The UPS is designed for data processing equipment. If uncertain,
consult your local dealer or Liebert representative.

This UPS is designed for use on a properly grounded (earthed),
100-127 VAC, 50 Hz or 60 Hz supply.

ELECTROMAGNETIC COMPATIBILITY—The GXT 2U
plies with the limits for a CLASS A DIGITAL DEVICE, PURSUANT TO
Part 15 of FCC rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may
cause undesired operation. Operating this device in a residential area is
likely to cause harmful interference that users must correct at their own
expense.

Operate the UPS in an indoor environment only in an ambient tempera­ture range of 32°F to +104°F (0°C to +40°C). Install it in a clean environ­ment, free from moisture, flammable liquids, gases and corrosive
substances.

™

Series com-

1

This UPS contains no user serviceable parts except the internal battery
packs and the rear input line fuses. The UPS ON/Standby push buttons
do not electrically isolate internal parts. Under no circumstances attempt
to gain access internally 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,
Liebert representative or the Liebert Worldwide Support Group.

Servicing of batteries should be performed or supervised by personnel
knowledgeable of batteries and the required precautions. Keep unautho­rized personnel away from the batteries. PROPER DISPOSAL OF BAT­TERIES IS REQUIRED. REFER TO YOUR LOCAL LAWS AND
REGULATIONS FOR BATTERY DISPOSAL REQUIREMENTS.

Never block or insert any object into the ventilation holes or other open­ings of the UPS.

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.

Turn the UPS off and isolate the UPS before cleaning; use only a soft
cloth, never liquid or aerosol cleaners. Keep the front and rear vents free
of dust accumulation that could restrict airflow.

When replacing batteries, replace with the same Liebert authorized
replacement battery kits.

CAUTION

!

Do not dispose of battery or batteries in a fire. The
battery may explode.

Do not open or mutilate the battery or batteries.
Released electrolyte is harmful to skin and eyes. It
may be toxic.

CAUTION

!

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, or other metal objects.

• Use tools with insulated handles.

2

•

GLOSSARY OF SYMBOLS

Risk of electrical shock

Indicates caution followed by important instructions

AC input

AC output

i

Requests the user to consult the manual

Indicates the unit contains a valve-regulated lead acid
battery

Recycle

DC voltage

Equipment grounding conductor

Bonded to ground

AC voltage

ON

Standby

3

INTRODUCTION

Congratulations on your choice of the Liebert UPStation GXT 2U™ Unin­terruptible Power System (UPS). It provides conditioned power to micro­computers and other sensitive electronic equipment.

Upon generation, AC power is clean and stable. However, during trans­mission and distribution it may be subject to voltage sags, spikes, or com­plete power failure that may interrupt computer operations, cause data
loss, or even damage equipment. The UPStation GXT 2U protects equip­ment from these disturbances.

The UPStation GXT 2U comes in nominal power ratings of 700, 1000,
1500, 2000 and 3000 VA. Complete model specifications appear at the
end of this manual.

The UPStation GXT 2U is a compact, “on-line” UPS. An on-line UPS con­tinuously conditions and regulates its output voltage, whether utility power
is present or not. It supplies connected equipment with clean sinewave
power. Sensitive electronic equipment operates best from sinewave
power.

For ease of use, the UPStation GXT 2U features a light-emitting diode
(LED) display to indicate either load percentage or battery capacity
depending upon the mode of operation. It also provides self-diagnostic
tests, a combination On/Alarm Silence/Manual Battery Test button, a
Standby button, user configurable program, and two levels of alarms
when the unit is operating on battery.

The UPStation GXT 2U has an interface port for communication between
the UPS and a network server or other computer systems. This port pro­vides detailed operating information including voltages, currents, and
alarm status to the host system when used in conjunction with Liebert
MultiLink

™

software. MultiLink software can also remotely control UPS

operation.

4

MAJOR COMPONENTS

Input Output

TVSS &

L

N

G

EMI/RFI

Filters

Battery

Charger

Rectifier

/PFC

Dynamic

Bypass

DC to DC

Converter

Battery

Inverter

L

N

G

TRANSIENT VOLTAGE SURGE SUPPRESSION (TVSS) AND EMI/RFI FILTERS

These UPS components provide surge protection and filter both electro­magnetic interference (EMI) and radio frequency interference (RFI). They
minimize any surges or interference present in the utility line and keep the
sensitive equipment protected.

RECTIFIER/POWER FACTOR CORRECTION (PFC) CIRCUIT

In normal operation, the rectifier/power factor correction (PFC) circuit con­verts utility AC power to regulated DC power for use by the inverter while
ensuring that the waveshape of the input current used by the UPS is near
ideal. Extracting this sinewave input current achieves two objectives:

• The utility power is used as efficiently as possible by the UPS

• The amount of distortion reflected on the utility is reduced

This results in cleaner power being available to other devices in the build­ing not being protected by the UPStation GXT 2U.

INVERTER

In normal operation, the inverter utilizes the DC output of the power factor
correction circuit and inverts it into precise, regulated sinewave AC power.
Upon a utility power failure, the inverter receives its required energy from
the battery through the DC to DC converter. In both modes of operation,
the UPS inverter is on-line and continuously generating clean, precise,
regulated AC output power.

5

BATTERY CHARGER

The battery charger utilizes energy from the utility power and precisely
regulates it to continuously “float charge” the batteries. The batteries are
being charged whenever the UPStation GXT 2U is plugged in, even when
the UPS is not turned on.

DC TO DC CONVERTER

The DC to DC converter utilizes energy from the battery system and
raises the DC voltage to the optimum operating voltage for the inverter.
This allows the inverter to operate continuously at its optimum efficiency
and voltage, thus increasing reliability.

BATTERY

The UPStation GXT 2U utilizes valve-regulated, nonspillable, flame retar­dant, lead acid batteries. To maintain battery design life, operate the UPS
in an ambient temperature of 68°F to 77°F (20°C to 25°C). Optional exter­nal battery cabinets are available to extend battery run times.

DYNAMIC BYPASS

The UPStation GXT 2U provides an alternate path for utility power to the
connected load in the unlikely event of a UPS malfunction. Should the
UPS have an overload, overtemperature, or UPS failure condition, the
UPS automatically transfers the connected load to bypass. Bypass opera­tion is indicated by an alarm and illuminated Bypass LED (other LEDs
may be illuminated to indicate the diagnosed problem). To manually trans­fer the connected load from the inverter to bypass, press the Standby but­ton once.

NOTE

The bypass power path does NOT protect the connected
equipment from disturbances on the utility supply.

6

GXT 2U (REAR VIEW)

DB-9
Communications Port

Intellislot Port

Cooling Fan

External Battery
Connector

Output
Receptacles

Input Fuse/ Circuit
Breaker

AC Input

Support Base

7

INSTALLATION

PREPARATION

1. Visually inspect the UPS for freight damage. Report damage to the
carrier and your local dealer or Liebert representative.

CAUTION

!

The UPS is heavy (see Specifications section). Take
proper precautions when lifting or moving it.

2. Decide where to place the GXT 2U. Install the UPS indoors in a con­trolled environment, where it cannot be accidentally turned off. Place
it in an area of unrestricted airflow around the unit, away from water,
flammable liquids, gases, corrosives, and conductive contaminants.
Maintain a minimum clearance of 4 inches (100mm) in the front and
rear of the UPS. Maintain an ambient temperature range of 32°F to
104°F (0°C to 40°C).

NOTE

UPS operation in temperatures above 77°F (25°C) reduces
battery life.

3. The GXT 2U may be installed in either a tower configuration or in a
rack, depending on available space and use considerations. Deter­mine the type of installation and follow the appropriate instructions in
either Tower UPS Installation or Rack-Mount UPS Conversion

and Installation.

TOWER UPS INSTALLATION

When using the GXT 2U in a tower configuration, use the included sup­port base (shown below, left) to stabilize the UPS.

If any battery cabinets are added, they will include spacers to accommo­date the additional cabinets (shown below, right).

Support base Spacers added to support

8

base to accommodate

additional battery cabinets

RACK-MOUNT UPS CONVERSION AND INSTALLATION

NOTE

When rack mounted, the UPS must be supported by a shelf,
brackets or slide rails on each side. The rack mount handles
WILL NOT support the weight of the UPS. They are used to
move the UPS into and out of the rack.

1. For slide rail installations, first remove the top/side fin. Slide the
top/side fin forward, then lift it up to remove. If desired, install the

optional rack mount handles that were shipped with the UPS.

U

PS

tation

G

XT

–

+

A

C

I
N

P

U

T

B

A

T
T

E
R

Y

U

P
S

O

N

B

Y
P

A

S
S

Optional rack mount handles

Securing hardware and slide rails are sold separately. Contact your
local dealer or Liebert representative for these additional options and
any assistance needed.

2. Unpack the two slide assem­blies and mounting hard­ware. The slide assemblies
are interchangeable
between left-hand or right­hand. Remove the inner
member of each slide
assembly (as seen at right)
by extending it to its outer­most position, depressing
the locking mechanism and
then pulling the inner mem­ber from the slide assembly.

Locking
mechanism

Slide assemblies

Inner
members

Outer
members

Outer
members

Mounting
bracket

9

3. Fasten the inner members from Step 2 to the UPS on both sides (see
below) with eight screws provided in the accessories box of the UPS.

Inner members

A
C

I

N
P

U
T

B

A
T

T
E

R
Y

U
P

S

ON

B
Y

P

A

S
S

4. Attach the two mounting brackets to the rack’s mounting rails. The
brackets allow adjustment of up to eight inches of the slide assembly
mounting position, front-to-back, on the rack mounting rails. Deter­mine which adjustment holes to use on the bracket, and attach it to
the slide assembly on the stationary outer member using the bar nuts
and #10-32 binding head screws provided in the slide assembly kit.
Insert two screws from the inside of each slide assembly.

NOTE

Bar nuts may not be required on all installations, depending
on the type of racks being used.

5. Install the slide assemblies, with brackets attached in Step 4 into the
the rack enclosure. The return flanges on the mounting brackets and
outer members fit to the inside of the rack mounting rails.

6. Insert the eight screws loosely (finger-tight). Make sure the slide
assemblies are in the same alignment position on all four rack mount­ing rails. After checking alignment, TIGHTEN ALL SCREWS.

Bar nuts

Slide assemblies

Rack

U
P

S
ta

t
io

n
G

X
T

mounting
rails

10

7. Insert the UPS, with inner members attached from Step 3, into the
slide assemblies. You may need to depress the locking mechanisms
on the inner and outer members of the slide assemblies to allow the
slides to retract. The UPS should move smoothly forward and back­ward on the slide assemblies. If not, recheck alignment.

CAUTION

!

Reduce the risk of tipping the rack enclosure by
placing the UPS in the lowest possible rack position.

8. To orient the display for horizon­tal viewing, remove the front
plastic bezel by pulling forward
evenly on both sides. The unit
has two front panel overlays.

Vertical

overlay

for

tower

UPS

Horizontal overlay

for rack UPS

Remove the outer overlay (used
for tower installation). This
reveals a horizontally oriented
front panel overlay for rack
mounting. Snap the front bezel
back into place.

9. Once the UPS is installed in the
rack, the load may be con­nected. Ensure the load equip-

+

–

UPStation GXT

+

–

UPStation GXT

AC INPUT BATTERY UPS ON BYPASS

AC INPUT BATTERY UPS ON BYPASS

ment is turned off; plug all loads
into the output receptacles on
the rear of the UPS.

10. Plug the UPS into a dedicated
wall receptacle properly pro­tected by a circuit breaker or
fuse in accordance with national
and local electrical codes. Use a 15 amp rated device for the 700,
1000, or 1500 VA units, 20 amp for the 2000 VA, and 30 amp for the
3000 VA. The wall receptacle must be grounded.

11. Turn ON the UPS by pressing the ON button; then turn on the con­nected load equipment. The UPS is now providing conditioned power
to your equipment.

11

EXTERNAL BATTERY CABINET INSTALLATION

Optional Liebert external battery cabinets may be connected to the UPS
to provide additional battery run time. External battery cabinets are
designed to be placed all on one side of the UPS or stacked beneath the
UPS. There is no limit to the number of external battery cabinets that can
be used but each cabinet will increase the battery recharge time.

CAUTION

!

The external battery cabinet(s) are heavy (see
Specifications section). External battery cabinets can
be used in rack-mount or tower configuration. Take
proper precautions when lifting them.

1. Visually inspect the external battery cabinet for freight damage.
Report damage to the carrier and your local dealer or Liebert repre­sentative.

2. For slide rail installations, first remove the top/side fin. Top/side fin
slides forward and then lift up to remove. Optional rack-mount han­dles are shipped with the external battery cabinet and may be
installed at this time if desired.

3. Securing hardware and slide rails are sold separately. Please contact
your local dealer or Liebert 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.

4. Use the enclosed support bases for the
tower option to prevent tip-over. One
additional set of support base exten­sions ships with each external battery
cabinet.

5. Connect the supplied external battery
cabinet cable to the rear of the external
battery cabinet, then to the rear of the
UPS.

6. Turn the battery breaker on the rear of
the external battery cabinet “ON”.

7. The UPS is now equipped with addi­tional backup battery runtime. For
approximate battery runtimes refer to
the Battery Run Times charts in this
manual.

NOTE

You must use the included Configuration Program to program
the UPS for the number of external battery cabinets connected.

12

CONTROLS AND INDICATORS

for illustrative purposes only.

All LEDs illuminated

ON/Alarm Silence/Manual Battery Test Button

This button controls output power to connected load(s) and has
three functions:

•ON

• Alarm Silence

• Manual Battery Test

ON - Pressing this button will start up the UPS in order to provide condi­tioned and protected power.

Alarm Silence - To silence alarms, press this button for at least one sec­ond. After the alarm is silenced, the UPStation GXT 2U will reactivate the
alarm system to alert of additional problems.

NOTE

The LOW BATTERY and BYPASS reminder alarms
CANNOT be silenced.

Manual Battery Test - To initiate a manual battery test, press the ON but­ton for at least one second while operating from utility power with no
alarm conditions present.

• If only three of the five battery LEDs illuminate, allow the UPS to
recharge the batteries for 24 hours.

• After 24 hours, retest the batteries.

• After the batteries have been retested, if only three of the five battery
LEDs illuminate, contact your local dealer, Liebert representative or
Liebert Worldwide Support Group.

13

Standby/Manual Bypass Button

This button controls output power to connected load(s) and has
dual functions: Standby and Manual Bypass.

CAUTION

!

Pressing the Standby/Manual Bypass button once will
cause the load to be transferred to bypass power.

Pressing the Standby/Manual Bypass button a second
time within 4 seconds will result in loss of power to
the output receptacles and connected loads. Perform
all necessary shutdown procedures on connected
loads before pressing this button twice.

Load/Battery Level Indicators (4 Green, 1 Amber)

The Load/Battery Level indicators have dual functions. During normal
mode operation LED indicators display the approximate electrical load
placed upon the UPS; and during battery mode operation LED indicators
display approximate battery capacity.

The UPStation GXT 2U is equipped with automatic and remote battery
test features. The automatic test occurs every 14 days (this option is user
configurable) if utility has not been interrupted. Should the battery fail this
test, the red fault indicator LED along with the A and C diagnostic LEDs
will illuminate and an alarm will sound (refer to Troubleshooting section).

The remote test feature functions with MultiLink

®

3 software and can

remotely initiate the battery test.

Fault Indicator LED (Red)

The Fault indicator LED is illuminated if the UPS has detected a problem.
Also, one or more of the load/battery level indicators may be illuminated
(refer to Troubleshooting section).

Bypass Indicator LED (Amber)

The Bypass indicator LED is illuminated when the UPS is operating from
bypass power. An alarm will sound indicating the UPS detected a prob­lem, or the manual bypass function has been activated.

UPS ON Indicator LED (Green)

The UPS ON indicator LED is illuminated when the UPS inverter is oper­ating and supplying power to your connected loads.

Battery Indicator LED (Amber)

The Battery indicator LED is illuminated when the UPS is operating on
battery.

AC Input Indicator LED (Green)

The AC Input indicator LED is illuminated when utility power is available
and within the input specifications.

14

Output Voltage Selection

The Output Voltage is user configurable, and is designed to allow select­ing or changing the desired output voltage to match the utility via the
GXT2 Configuration Program provided with the UPS. The settings to
choose from are 100, 110, 115, 120, and 127 VAC output. The factory
default setting is 120 VAC.

CAUTION

!

Never change the voltage settings while the UPS is ON
and powering connected loads.

NOTE

Setting output voltage to 100 VAC will cause the UPS unit to
be derated (700/1000 VA to 90%, 1500/2000/3000 VA to
80%) of the VA and Watt ratings listed in the Specifications
section.

15

OPERATING INSTRUCTIONS

NORMAL MODE OPERATION

During normal operation, utility
power provides energy to the
UPS. The filters, power factor
correction circuit and the
inverter process this power to
provide computer grade
power to connected loads.

AC INPUT BATTERY UPS ON BYPASS

The UPS maintains the batter­ies in a fully charged state.

Normal Mode Operation at 50%

The four green LEDs indicate an approximate level of load in 25% incre­ments. If the UPS becomes loaded beyond full rating, the fifth (amber)
LED indicator will illuminate and sound an audible alarm. The display
template indicates the percentage of load (50% of load shown in exam­ple) on the UPS output.

BATTERY MODE OPERATION

Battery mode occurs in event
of an extreme input voltage
condition or complete utility
failure. The battery system
supplies power through the
DC to DC converter to the
inverter to generate power
for the connected load.

During battery mode an alarm
sounds every 10 seconds.
This will change to two beeps every 5 seconds when battery runs low
(approximately 2 minutes remaining, but this is user configurable). The AC
Input LED will extinguish, and the Battery LED will illuminate to warn that a
utility problem has occurred. Each load/battery level indicator represents a
20% capacity level. As capacity decreases, fewer indicators remain illumi­nated. Refer to Troubleshooting section.

For approximate battery run times, refer to Battery Run Times charts in
this manual. To increase this time, turn off non-essential pieces of equip­ment (such as idle computers and monitors) or add the optional external
battery cabinet.

AC INPUT BATTERY UPS ON BYPASS

Battery Mode Operation at 80 - 61%

CAUTION

!

Turning off the UPS while in battery mode will result
in loss of output power.

BATTERY RECHARGE MODE

Once utility power is restored, the UPS resumes normal operation. At this
time, the Battery Charger begins recharging the battery.

16

r

COMMUNICATIONS

COMMUNICATIONS INTERFACE PORT

The UPStation GXT 2U UPS contains a standard DB-9 serial port female
connector located on the rear of the UPS unit. Several signals are pro­vided on this port and are assigned as follows:

Pin Assignment Description

1 Low Battery (open collector)

2 UPS TxD (typical RS-232 levels)

3 UPS RxD (typical RS-232 levels)

4 Remote Shutdown (5-12VDC, 10-24 mA max); battery operation

5Common

6 Remote Shutdown (short to pin 5); all modes of operation

7 Low Battery (open emitter)

8 Utility Fail (open emitter)

9 Utility Fail (open collector)

Pin Assignment Collector to Emitter*

6789

330 Ohms

54321

(+)

(-)

*Maximum voltage and current on pins 1, 7, 8, and 9 is 60V DC; 10.0 mA.

PIN 4 - REMOTE SHUTDOWN ON BATTERY

1. This pin is functional only when the UPS is in battery mode. If the
UPS is being powered by the utility, Pin 4 will ignore any signal on this
pin.

2. Pin 4 requires a 5-12 VDC signal to shutdown. This normally comes
form the serial port using Liebert’s contact closure cable. It cannot be
used with just a contact closure unless the relay is used to switch a
voltage source. A 5-12 VDC signal for 1.5 seconds or greater is
required to signal a shutdown. Signals for less than 1.5 seconds will
be ignored. After Pin 4 receives a shutdown signal for 1.5 seconds,
the command cannot be canceled.

17

Open
Collecto

Open
Emitter

3. A battery shutdown signal on Pin 4 will NOT cause an immediate
shutdown. A shutdown signal will start a 2-minute shutdown timer.
The timer cannot be stopped. After 2 minutes, the UPS will shut
down.

4. If the utility returns during the 2-minute timer countdown, the shut­down timer will continue until the end of 2 minutes and the UPS will
turn OFF. The UPS must remain OFF for at least 10 seconds even if
AC input power returns before the UPS turns OFF. This serves to
reset and restart the server.

Whether the UPS turns back ON when power is restored depends on the
auto-restart setting: enabled or disabled.

If the auto-restart is disabled, the UPS will not restart after performing the
2-minute shutdown delay.

UPS INTELLIGENT COMMUNICATIONS

The UPStation GXT 2U is equipped with an Intellislot™ port to provide
advanced communication and monitoring options.

Liebert's MultiLink™ software continually monitors the UPS and can shut
down your computer or server in the event of an extended power failure.

MultiLink can also be configured for use without the serial cable when the
Intellislot SNMP/Web card is installed in the UPS. Additionally, MultiLink
can be configured to coordinate shutdown across the network with other
computers running MultiLink when you purchase a MultiLink License Kit.
For more information about the Intellislot SNMP/Web Card and MultiLink
License Kits, visit our Web site (www.liebert.com) or contact your local
dealer or Liebert representative.

Several option cards are available for use in the Intellislot port of the
UPStation GXT 2U. The Intellislot SNMP/Web Card provides SNMP and
Web-based monitoring and control of the UPS across the network.

The Intellislot MultiPort 4 Card allows you to install MultiLink software on
four computers and coordinate shutdown in the event of a power failure.

The Intellislot Relay Card provides five dry contact relay outputs for
custom wired applications and delivers support for built-in shutdown for
AS/400 systems.

CAUTION

!

To maintain safety (SELV) barriers and for
electromagnetic compatibility, signal cables should be
segregated and run separate from all other power
cables, where applicable.

18

CONFIGURATION PROGRAM

This is a new feature included with the new UPStation GXT 2U line. Sev­eral UPS settings that were previously not available or required custom
manufacturing may now be modified using this program. For most users,
the factory default settings will be adequate. This manual illustrates the
features available for modification, as well as the factory default setting.

GXT 2U CONFIGURATION PROGRAM ABILITIES

• Select one of five output voltages to match voltages found around
the world.

• Enable/Disable Auto-Restart.

• Enable/Disable the Line-Neutral-Reversal/Loss-of-Ground recepta­cle wiring alarm.

• Select frequency converter operation with a fixed output frequency
of 50 or 60 Hz.

• Set the Low Battery Warning alarm time from 2 to 30 minutes.

• Enable/Disable the Auto-Battery test.

• Set the Auto-Battery test to 7, 14, 21, or 28 days.

• Select the number of external battery cabinets connected to the
UPS to adjust the remaining run time calculations reported by Lie­bert software products.

NOTE

This program is compatible with UPS models beginning with
“GXT2-”, as in “GXT2-1500RT120”. It is not compatible with
earlier versions of UPStation GXT UPS.

What You Will Need

In addition to the GXT 2U UPS, you will need the configuration program
diskette and serial cable (Beige or Tan, 3-wire: GND, TX, RX; straight
through 2-2, 3-3, 5-5) included in the UPS accessory box. The BLACK
ML9P9S CONTACT CLOSURE communication cable IS NOT compatible
with the configuration program. A Windows 95

®

, 98®, or NT® computer—
desktop or laptop—is also required to set up and run the configuration
program.

19

MAINTENANCE

The UPStation GXT 2U requires very little maintenance. The batteries are
valve regulated, nonspillable, flame retardant, lead acid, and should be
kept charged to obtain their designed life. The UPS continuously charges
the batteries when connected to the utility supply.

When storing the UPS for any length of time, it is recommended to plug
the UPS in for at least 24 hours every four to six months to ensure full
recharge of the batteries.

The UPStation GXT 2U is designed to allow the user to safely replace the
internal batteries. Read the safety cautions before proceeding. Contact
your local dealer or Liebert representative to obtain the appropriate
replacement battery kit part number and pricing.

BATTERY REPLACEMENT

CAUTION

!

A battery can present a risk of electrical shock and
high short circuit current. The following precautions
should be observed before replacing the batteries:

• Remove rings, watches, or other metal objects.

• Use a Phillips (crosshead) screwdriver with insu­lated grips.

• Do not lay tools or other metal objects on top of
the batteries.

• If the battery replacement kit is damaged in any
way or shows signs of leakage, contact your local
dealer or Liebert representative immediately.

• Do not dispose of batteries in a fire. The batteries
may explode.

20

Internal Battery Replacement Procedures:

1. Gently remove the front plastic bezel cover from the UPS.

2. Loosen and remove the four screws on the front battery door. Lay the
battery door aside for reassembly.

3. Gently pull battery wiring out and disconnect the two slotted battery
connectors.

4. Grasp the battery pack assembly, and pull it out of the front of the
UPS.

5. Unpack the new battery assembly taking care not to destroy the pack­ing. Compare new and old battery assemblies to make sure they are
the same. If so, proceed with Step 6; otherwise STOP and contact
your local dealer, Liebert representative, or the Liebert Worldwide
Support Group.

6. Line up and slide in the new replacement battery pack.

7. Reconnect the 2 slotted battery connectors and gently push the bat­tery wiring and battery pack assembly back into the UPS.

8. Reattach the front battery door with the four screws.

9. Reattach the front plastic bezel cover to the UPS.

NOTE

These are hot-swappable replacement batteries. However,
caution should be exercised because during this procedure the
load is unprotected from disturbances and power outages.

21

FUSE REPLACEMENT

CAUTION

!

Before changing the input fuse, turn off the UPS, and
unplug the supply lead from the AC input supply.
Replace the fuse with the same type and rating.

1. Remove the input fuse from the
fuse holder on the rear of the
unit.

2. Locate the spare input fuse that
is shipped with the UPS.

3. Insert the spare fuse into the
fuse holder, and reinstall assem­bly into the UPS. Twist by hand;
rotate clockwise until fuse holder
locks into position.

4. Reconnect the input power cord
to input AC supply.

5. Restart the UPS. The UPS is ready for normal operation.

22

TROUBLESHOOTING

The information below indicates various symptoms a user may encounter
in the event the UPStation GXT 2U™ develops a problem. Use this infor­mation to determine whether external factors caused the problem and
how to remedy the situation.

1. The fault indicator will illuminate, indicating the UPS detected a problem.

2. An alarm will sound, alerting that the UPS requires attention.

3. One or more additional load/battery level LED indicators will be illumi­nated to provide a diagnostic aid to the operator, as described below:

Fault

E

D

C

B

A

BYPASS

UPS ON

BATTERY

AC
INPUT

This example shows UPS on bypass
due to output overload.

ABCDEFault

AC INPUT BATTERY UPS ON BYPASS

LOAD/BATTERY

LEVEL INDICATORS

LED status Diagnosis/Audible alarm

All LEDs On bypass due to output overload; beep ever half-second

A LED On bypass due to overtemperature condition; beep every 4 sec.

B LED On bypass due to DC bus overvoltage; beep every 4 sec.

C LED On bypass due to control power supply failure; beep every 4 sec.

D LED On bypass due to PFC failure; beep every 4 sec.

E LED On bypass due to inverter failure; beep every 4 sec.

A&C LEDs UPS failed battery test; long beep every minute

C&E LEDs

Battery

LED Flashing

AC LED

Flashing

Bypass LED

Flashing

UPS shutdown due to command from communication port
(SNMP); no beep

Internal Battery source not available (continuous horn). Check
battery connection, completely power down and reboot UPS.

Line to neutral reversal in the AC input power supply or a loss of
proper grounding; continuous horn and UPS will not start.

Utility power voltage or frequency is out of tolerance; bypass is
unavailable.

23

Under fault conditions, the fault indicators will be illuminated indefinitely
while battery charger is operational, or for a maximum of 5 minutes while
battery charger is not operational.

If a problem persists, consult your local dealer, Liebert representative or
contact the Liebert Worldwide Support Group. Please have the UPS
model number and serial number available at the time of your inquiry.

Troubleshooting Guide

Problem Cause Solution

UPS fails to start
when the ON
button is pressed.

Battery indicator
LED is illuminated.

UPS has reduced
battery time.

UPS is short circuited or
overloaded.

UPS not plugged in. UPS is operating from battery

UPS input protection
fuse has blown/opened.

Utility voltage out of UPS
input range.

Batteries are not fully
charged.

UPS is overloaded. Check load level display and

Batteries may not be able
to hold a full charge due
to age.

Ensure UPS is OFF. Disconnect
all loads and ensure nothing is
lodged in output receptacles.
Ensure loads are not defective
or shorted internally.

mode, make certain UPS is
securely plugged into the wall
receptacle.

UPS is operating from battery
mode. Save data and close
applications. Replace UPS input
fuse, then restart UPS.

UPS is operating from battery
mode. Save data and close
applications. Ensure utility
supply voltage is within
acceptable limits for UPS.

Keep UPS plugged in
continuously at least 24 hours to
recharge batteries.

reduce the load on the UPS.

Replace batteries. Contact your
local dealer, Liebert
representative or the Liebert
Worldwide Support Group for
replacement battery kit.

Fault and Bypass
indicator LEDs and
all load level LEDs
are illuminated.

UPS overloaded or load
equipment is faulty.

24

Check load level display and
remove non-essential loads.
Recalculate the load and reduce
number of loads connected to
UPS. Check load equipment for
faults.

Troubleshooting Guide (Continued)

Problem Cause Solution

Fault and Bypass
indicator LEDs and
diagnostic LED A
are illuminated.

Fault and Bypass
indicator LEDs and
diagnostic LED B
are illuminated.

Fault and Bypass
indicator LEDs and
diagnostic LED C
are illuminated.

Fault and Bypass
indicator LEDs and
diagnostic LED D
are illuminated.

Fault and Bypass
indicator LEDs and
diagnostic LED E
are illuminated.

UPS internal fan has a
problem or UPS
shutdown due to
temperature condition.
Load is on bypass power.

UPS internal DC bus
overvoltage.

UPS control power
supply fault.

UPS PFC (Power Factor
Correction Circuit) fault.

UPS inverter fault. UPS requires service. Contact

Ensure UPS is not overloaded,
ventilation openings not blocked,
or room ambient temperature is
not excessive. Wait 30 minutes
to allow UPS to cool, then restart
UPS. IF UPS does not restart,
contact your local dealer, Liebert
representative or the Liebert
Worldwide Support Group.

UPS requires service. Contact
your local dealer, Liebert
representative or the Liebert
Worldwide Support Group.

UPS requires service. Contact
your local dealer, Liebert
representative or the Liebert
Worldwide Support Group.

UPS requires service. Contact
your local dealer, Liebert
representative or the Liebert
Worldwide Support Group.

your local dealer, Liebert
Representative or the Liebert
Worldwide Support Group.

Fault and Bypass
indicator LEDs and
diagnostic LED A
and C are
illuminated.

Fault and Bypass
indicator LEDs and
diagnostic LED C
and E are
illuminated.

UPS failed the battery
test.

UPS shutdown due to a
command from the
communications port(s).

25

Replace batteries. Contact your
local dealer, Liebert
representative or the Liebert
Worldwide Support Group.

Your UPS has received a signal
or command from the attached
computer. If this was
inadvertent, ensure the
communication cable used is
correct for your system. For
assistance, contact your local
dealer, Liebert representative or
the Liebert Worldwide Support
Group.

Troubleshooting Guide (Continued)

Problem Cause Solution

AC LED is flashing. UPS detected a line-to-

neutral reversal or a loss
of proper grounding;
continuous horn and
UPS will not start.This is
active only when power
is first applied to the
input. Once the UPS is
running, the AC LED will
not start flashing, even if
the input wiring is
changed.

Battery LED is
flashing.

Bypass LED is
flashing.

Battery source is not
available; continuous
horn.

Bypass voltage is
present, but is disabled
for use because the
voltage or frequency is
outside acceptable limits.

Contact a qualified electrician to
verify site wiring.

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.

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 a load,
the bypass will be disabled and
this LED will flash, indicating that
the bypass is unavailable.

26

Alarm Conditions

Condition Alarm

Battery Mode
(utility failure)

Low Battery Two short beeps every 5 seconds; less than

Output overload
(bypass)

Overtemperature
(bypass)

DC Bus Overvoltage
(bypass)

Control power supply
failure (bypass)

PFC failure (bypass) A one-second beep every 4 seconds

Inverter failure A one-second beep every 4 seconds

Battery Test failure A 2-second beep every minute

One short beep every 10 seconds; more than
2 minutes of run time remaining

2 minutes of run time remaining

One short beep every half second

A one-second beep every 4 seconds

A one-second beep every 4 seconds

A one-second beep every 4 seconds

27

Model Number GXT2-700RT120 GXT2-1000RT120 GXT2-1500RT120
Model Rating 700VA / 490W 1000VA / 700W 1500VA / 1050W

DIMENSIONS in (mm)

Unit
W x D x H in. (mm)
Shipping
W x D x H in. (mm)

WEIGHT lbs (kg)

Unit 48.9 (22.2) 49.1 (22.3) 50.6 (23)
Shipping 57.7 (26.2) 57.9 (26.3) 59.5 (27)

INPUT AC PARAMETERS

Voltage Range
(typical)

100% - 90% loading 80 VAC / 140 VAC 80 VAC / 140 VAC 90 VAC / 140 VAC
90% -70% loading 80 VAC / 140 VAC 80 VAC / 140 VAC 80 VAC / 140 VAC
70% -30% loading 70 VAC / 140 VAC 70 VAC / 140 VAC 70 VAC / 140 VAC
30% - 0% loading 60 VAC / 140 VAC 60 VAC / 140 VAC 60 VAC / 140 VAC
Frequency 40 - 70 Hz; Auto Sensing

Input Power Cord

OUTPUT AC PARAMETERS

Output Receptacles (4) NEMA 5-15R
Voltage 100/ 110/ 115/120/ 127 (user configurable) VAC; ±3%
Frequency 50 Hz or 60 Hz
Waveform Sinewave
Main Mode
Overload

BATTERY PARAMETERS

Type Valve-regulated, nonspillable, flame retardant, lead acid
Qty x V x Rating 4 x 12V x 7.0 or 7.2 AH
Battery Mfg / Part # China Storage Battery / CSB FR 1270 F2
Back-up Time See Battery Run Times charts
Recharge Time 5 Hours to 95% capacity after full discharge into 100% load

ENVIRONMENTAL

Operating Temp +32°F to +104°F (0°C to +40°C)
Storage Temp +5°F to +122°F (-15°C to +50°C)
Relative Humidity 0% to 95%, non-condensing
Operating Elevation Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
Storage Elevation 50,000 ft. (15,000m) maximum

Audible Noise

AGENCY

Safety UL 1778, c-UL Listed (Suitable for computer room applications)
RFI/EMI FCC Part 15, Subpart B, Class A
Surge Immunity IEEE/ANSI C62.41 Category A & B
Transportation ISTA Procedure 1A

SPECIFICATIONS

3.5 x 21.5 x 17

(87 x 547 x 430)

10.4 x 27.3 x 22.5
(268 x 692 x 585)

120 VAC nominal; variable based on output load

6 ft. attached

w/ NEMA 5-15 plug

200% for 8 cycles; 130% for 10 seconds with transfer to bypass

<45 dBA, at 1 meter from the front or sides

3.5 x 21.5 x 17

(87 x 547 x 430)

10.4 x 27.3 x 22.5
(268 x 692 x 585)

10 ft. attached

w/ NEMA 5-15 plug

<50 dBA, at 1 meter from the rear

10.4 x 27.3 x 22.5
(268 x 692 x 585)

w/ NEMA 5-15 plug

3.5 x 21.5 x 17

(87 x 547 x 430)

10 ft. attached

28

SPECIFICATIONS (CONTINUED)

Model Number GXT2-2000RT120 GXT2-3000RT120
Model Rating 2000VA / 1400W 3000VA / 2100W

DIMENSIONS in (mm)

Unit
W x D x H in. (mm)
Shipping
W x D x H in. (mm)

WEIGHT lbs (kg)

Unit 54 (24) 69 (31)
Shipping 62.6 (28.4) 78.0 (35.4)

INPUT AC PARAMETERS

Voltage Range
(typical)
100% - 90% loading 90 VAC / 140 VAC 90 VAC / 140 VAC
90% -70% loading 80 VAC / 140 VAC 80 VAC / 140 VAC
70% -30% loading 70 VAC / 140 VAC 70 VAC / 140 VAC
30% - 0% loading 60 VAC / 140 VAC 60 VAC / 140 VAC
Frequency 40 - 70 Hz; Auto Sensing

Input Power Cord

OUTPUT AC PARAMETERS

Output Receptacles

Voltage 100/110/ 115/120/ 127 (user configurable) VAC; ±3%
Frequency 50 Hz or 60 Hz
Waveform Sinewave
Main Mode
Overload

BATTERY PARAMETERS

Type Valve-regulated, nonspillable, flame retardant, lead acid
Qty x V x Rating 4 x 12V x 9.0 AH 6 x 12V x 9.0 AH
Battery Mfg / Part # Panasonic / UP-VW1245P1

Back-up Time See Battery Run Times charts
Recharge Time 5 hours to 95% capacity after full discharge into 100% load

ENVIRONMENTAL

Operating Temp +32°F to +104°F (0°C to +40°C)
Storage Temp +5°F to +122°F (-15°C to +50°C)
Relative Humidity 0% to 95%, non-condensing
Operating Elevation Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
Storage Elevation 50,000 ft. (15,000 m) maximum

Audible Noise

AGENCY

Safety UL 1778, c-UL Listed (Suitable for computer room applications)
RFI/EMI FCC Part 15, Subpart B, Class A
Surge Immunity IEEE/ANSI C62.41 Category A & B
Transportation ISTA Procedure 1A

3.5 x 21.5 x 17

(87 x 547 x 430)

10.5 x 27.2 x 23

(268 x 692 x 585)

120 VAC nominal; variable based on output load

10 ft. attached

w/ NEMA 5-20 plug

(4) 5-20R T-Slot,

accepts 15A plug

200% for 8 cycles; 130% for 10 seconds with transfer to bypass

Yuasa / REW 45-12 FR

<55 dBA, at 1 meter from the rear

<50 dBA, at 1 meter from the front or sides

(1) NEMA L5-30R on 12 in cord

3.5 x 24.2 x 17

(87 x 618 x 430)

10.5 x 27.2 x 23

(268 x 692 x 585)

10 ft. attached

w/ NEMA L5-30 plug

(4) NEMA 5-15R

29

BATTERY CABINET SPECIFICATIONS

Model Number GXT2-48VBATT GXT2-72VBATT

GXT2-700RT120

Used w/ UPS Model

DIMENSIONS in (mm)

Unit
W x D x H
Shipping
W x D x H

WEIGHT lbs (kg)

Unit 65.0 (29.5) 93.6 (42.5)
Shipping 71.1 (32.3) 102.5 (46.5)

BATTERY PARAMETERS

Type Valve-regulated, nonspillable, flame retardant, lead acid
Qty x V x Rating 2 x 4 x 12V x 7.0 or 7.2 AH 2 x 6 x 12V x 9.0 AH
Battery Mfg / Part # China Storage Battery /

Back-up Time See Battery Run Times charts

ENVIRONMENTAL

Operating Temp +32°F to +104°F (0°C to +40°C)
Storage Temp +5°F to +122°F (-15°C to +50°C)
Relative Humidity 0% to 95%, non-condensing
Operating Elevation Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
Storage Elevation 50,000 ft. (15,000 m) maximum

AGENCY

Safety UL 1778, c-UL Listed (Suitable for computer room applications)
RFI/EMI FCC Part 15, Subpart B, Class A
Transportation ISTA Procedure 1A

GXT2-1000RT120
GXT2-1500RT120
GXT2-2000RT120

3.5 x 21.5 x 17

(87 x 547 x 430)

10.5 x 27.2 x 23

(268 x 692 x 585)

CSBFR 1270 F2

GXT2-3000RT120

3.5 x 24.2 x 17

(87 x 618 x 430)

10.5 x 27.2 x 23

(268 x 692 x 585)

Panasonic / UP-VW 245P1

Yuasa / REW 45-12 FR

30

BATTERY RUN TIMES

Load% 700VA 1000VA 1500VA 2000VA 3000VA

10% 248 191 144 56 91

Internal
Battery
(minutes)

Internal Battery
+ 1 External
Battery Cabinet
(minutes)

Internal Battery
+ 2 External
Battery Cabinets
(minutes)

Internal Battery
+ 3 External
Battery Cabinets
(minutes)

Internal Battery
+ 4 External
Battery Cabinets
(minutes)

Approximate discharge times are in minutes and at 77°F (25°C) and with a 100% resistive load.

20%11587533346
30% 79 48 38 26 30
40% 58 34 28 19 21
50% 44 25 20 14 16
60% 35 19 15 12 11
70% 29 16 12 10 9
80% 24 13 10 8 8
90% 20 12 8 7 7

100% 17 11 7 6 5

10% 992 764 576 168 364
20% 460 348 212 99 184
30% 316 192 152 78 120
40% 232 136 112 57 84
50% 176 100 80 42 64
60% 140 76 60 36 44
70%11664483036
80% 96 52 40 24 32
90% 80 48 32 21 28

100% 68 44 28 18 20

10% 1984 1528 1152 392 728
20% 920 696 424 231 368
30% 632 384 304 182 240
40% 464 272 224 133 168
50% 352 200 160 98 128
60% 280 152 120 84 88
70% 232 128 96 70 72
80% 192 104 80 56 64
90% 160 96 64 49 56

100% 136 88 56 42 40

10% 2976 2292 1728 560 1092
20% 1380 1044 636 330 552
30% 948 576 456 260 360
40% 696 408 336 190 252
50% 528 300 240 140 192
60% 420 228 180 120 132
70% 348 192 144 100 108
80% 288 156 120 80 96
90% 240 144 96 70 84

100% 204 132 84 60 60

10% 3968 3056 2304 840 1456
20% 1840 1392 848 495 736
30% 1264 768 608 390 480
40% 928 544 448 285 336
50% 704 400 320 210 256
60% 560 304 240 180 176
70% 464 256 192 150 144
80% 384 208 160 120 128
90% 320 192 128 105 112

100% 272 176 112 90 80

31

32

POWER PROTECTION

UPStation GXT 2U

™

The Company Behind the Products

With over a million installations around the globe,
Liebert is the world leader in computer protection
systems. Since its founding in 1965, Liebert has
developed a complete range of support and
protection systems for sensitive electronics:

• Environmental systems—close-control air
conditioning from 1 to 60 tons

• Power conditioning and UPS with power
ranges from 300 VA to more than 1000 kVA

• Integrated systems that provide both
environmental and power protection in a
single, flexible package

• Monitoring and control—from systems of any
size or location, on-site or remote

• Service and support through more than 100
service centers around the world and a 24/7
Customer Response Center

While every precaution has been taken to ensure
the accuracy and completeness of this literature,
Liebert Corporation assumes no responsibility and
disclaims all liability for damages resulting from use
of this information or for any errors or omissions.

© 2002 Liebert Corporation
All rights reserved throughout the world.
Specifications subject to change without notice.

® Liebert and the Liebert logo are registered
trademarks of Liebert Corporation. All names
referred to are trademarks or registered
trademarks of their respective owners.

SL-23150 (3/02) Rev. 4

USER MANUAL

Technical Support

United States

1050 Dearborn Drive

P.O. Box 29186

Columbus, OH 43229

Single-Phase UPS

Outside the United States

Environmental Control

Via Leonardo Da Vinci 8

Zona Industriale Tognana

35028 Piove Di Sacco (PD)

FAX: [phone]

23F, Allied Kajima Bldg.

800-222-5877

614-841-6755

3-Phase UPS

800-543-2378

800-543-2778

Italy

[phone]

Asia

138 Gloucester Road

FAX: [phone]

[e-mail]

Wanchai

Hong Kong

[phone]

Web Site

www.liebert.com

E-mail