Vertiv Liebert EXS User manual

Liebert®
EXS™
Quick Start Guide
10-kVA, 60-Hz, 208/220-V, Three-phase UPS

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.

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 2
1.0 INTRODUCTION
Thank you for the purchase of the Liebert® EXS™ uninterruptible power
system (UPS). The complete user manual is available at Vertiv’s web
site, https://www.vertivco.com/en-us/products-catalog/critical-
power/uninterruptible-power-supplies-ups/liebert-exs-ups/ or using
the QR code on the right.
Figure 1 shows the controls and other features on the front of the unit. The rear panel and
connections are shown in Figure 2.
Figure 1 UPS front panel
1. LED Indicators 2. Power button 3. Function Keys 4. LCD panel

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 3
Figure 2 UPS rear panel
1. REPO Port 2. USB Port 3. RS-233 Port 4. Parallel/LBS Port

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 4
2.0 UPS INSTALLATION AND
COMMISSIONING
2.1 Unpacking and Inspection
The Liebert™ EXS™ is shipped on a pallet. The UPS is equipped with casters that permit two or
more people to roll it off the pallet for installation. The Liebert™ EXS™ should be moved as close
as practical to its installation location before its packing is removed or the shipping brackets
loosened.
Inspect the UPS for damage. If any problem is found, file a damage claim with the carrier
immediately and send a copy to Vertiv™ at:
Vertiv™
1050 Dearborn Drive
P.O. Box 29186
Columbus, Ohio 43085 USA
Attn: Traffic Department
Check the accessories and model numbers against the delivery list. If any problem is found,
notify your local Vertiv™ representative immediately.
2.2 Installation Tools
The following tools are required to properly install your UPS:
• Pallet jack / Forklift
• Utility Knife
• 19mm (3/4 in.) open wrench or adjustable wrench (Crescent Wrench)
• 16mm (5/8 in.) wrench or socket
• 14mm (9/16 in.) wrench or socket
• 13mm (1/2 in.) wrench or socket
• #1, #2, and #3 Phillips-head screwdrivers
• Torque wrench
• Torque screwdriver
2.3 Removing the UPS from the shipping pallet:
1. Use a forklift, pallet jack, or other lifting device to move the packaged Liebert™ EXS™ as
close as practical to its intended installation location.
2. Remove the protective packing; see Figure 9.

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 5
3. Locate the included accessories from their packing location on top of the UPS and set
them aside.
4. Unbolt the shipping brackets from the pallet with a 14mm (9/16”) wrench or socket and
then unbolt the shipping brackets from the front and rear of the UPS with a 16mm (5/8”)
wrench or socket.
5. Retain the brackets to secure the installed UPS to prevent it from tipping; or to secure it
to the floor Note: this step is not required for a Liebert® EXS™ with more than two
battery strings (wider UPS).
6. Raise the leveling feet so that they will not interfere with the ramp.
7. Place the ramp onto the pallet at the front of the UPS and gently roll the UPS down the
ramp to the floor; refer to Figure 10.

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 6
Figure 9 Remove the protective packing
Figure 10 Moving Liebert® EXS™ off shipping pallet

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 7
2.4 Installation Preparation
2.4.1 Environmental Requirements
Installation Area
The Liebert® EXS™ is designed for indoor installation in a clean, well-ventilated environment.
Internal fans provide forced-air cooling for the UPS. Cooling air enters through the front panel
and the hot air is exhausted through the back. Per National Electric Code, at least 3 ft. (914mm)
clearance in the front and rear of the Liebert® EXS™ is required for installation and
maintenance (see Figure 11). No side clearance is required. Only 8 inches (203mm) rear
clearance is required during operation.
Figure 11 Installation clearances
Storage
If the Liebert® EXS™ is not installed immediately, it must be stored indoors and protected from
excessive
moisture, heat and other harsh conditions. The batteries must be stored in a dry, well-
ventilated environment
with a temperature range of 68°F ~ 77°F (20°C ~ 25°C).
NOTICE
Risk of failure to properly charge batteries can damage the batteries and void the
warranty.
Batteries will lose charge during storage. Batteries must be recharged as recommended
by the battery manufacturer every 3 to 6 months, depending on storage temperature.
Approximate times to charge stored batteries are:
• 68-77°F (20-25°C): after 6 months in storage
• 78-86°F (26-30°C): after 3 months in storage
• 87°F or higher (31°C or higher): after 1 month in storage.

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 8
2.5 Connecting Power Cables
When connecting input and output cables, follow national and local wiring regulations, take the
environment into account and refer to NFPA 70, Table 310-16.
It is recommended to use parity sized ground conductors. Tables 2 and 3 below list the
minimum size cables and recommended overcurrent protection device.
Table 2 Currents and wire size — UPS rectifier input
Maximum
Input
Current,
Amps
Recommend
ed OPD, Amp
Trip
75°C THW Copper
Wire (phase)
Number of Cables
per Phase: 1
75°C THW Copper
Wire (neutral)
Number of Cables:
1
75°C THW
Copper
Wire (Ground)
Number of
Cables: 1
Recommende
d
Torque
37 50 6AWG 6AWG 10AWG
3nm (2.2ft-
lb)
Table 3 AC currents and wire size — UPS bypass input* and output
Maximum
Input
Current,
Amps
Recommended
OPD, Amp Trip
75°C THW Copper
Wire (phase)
Number of Cables
per Phase: 1
75°C THW
Copper Wire
(neutral)
Number of
Cables: 1
75°C THW
Copper
Wire (Ground)
Number of
Cables: 1
Recommended
Torque
28 40 8AWG 8AWG 10AWG 3nm (2.2ft-lb)
* Bypass input for dual input configurations only
Table 4 Ring terminal part numbers
AWG (mm
2
)
10 (5.26)
8 (8.36)
6 (13.3)
Manf : Part
#
McMaster-Carr: 7113K462 McMaster-Carr:
7113K444
McMaster-Carr:
7113K366
Thomas & Betts: RC10-14 Thomas & Betts: RDV717
Thomas & Betts: RE6-
14
Tyco Electronics:
1577648-1
Tyco Electronics: 132331-
1 —

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 9
2.5.1 Connecting I/O Cables – Single Input Configuration
Connect the UPS power cables to the I/O terminal block on the UPS rear panel as shown in
Figure 13.
1. Remove the conduit cover plate to gain access to the input and output terminal blocks.
2. Remove the knockouts and attach the conduits to the rear of the conduit plate
Hardwire Connections - UPS Input
3. Leave the factory supplied shorting bus bars in place on the UPS input terminal block.
Shorting bus bar image
4. Using Figure 13, make these connections:
• Phase A cable from the upstream feeder panel to UPS Input Terminal Jumper
between 1-2 (rA-bA)
• Phase B cable from the upstream feeder panel to UPS Input Terminal Jumper
between 3-4 (rB-bB)
• Phase C cable from the upstream feeder panel to UPS Input Terminal Jumper
between 5-6 (rC-bC)
• Neutral cable from the upstream feeder panel to UPS Input Terminal Jumper between
7-8 (N-N)
• The safety equipment ground cable from upstream feeder panel to UPS ground bus
bar (PE).
Hardwire Connections - UPS Output
5. Using Figure 13, make these connections:
• Phase A cable from UPS Output Terminal 1 to the downstream distribution panel
Phase A on the panelboard main lug/breaker
• Phase B cable from UPS Output Terminal 2 to the downstream distribution panel
Phase B on the panelboard main lug/breaker
• Phase C cable from UPS Output Terminal 3 to the downstream distribution panel
Phase C on the panelboard main lug/breaker
• Neutral cable from UPS Output Terminal Jumper between 4-5 to the downstream
distribution panel neutral bus
• The safety equipment ground cable from UPS ground bus bar (PE) to the
downstream distribution panel ground bus
6. Replace the conduit plate and secure it.

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 10
Figure 13 Wiring diagram----- Single and Dual input Configuration

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 11
2.5.2 Connecting I/O Cables – Dual-Input Configuration
Dual input configuration for the UPS requires that both input feeds be from the same solid N-G
bonded source.
Connect the UPS power cables to the I/O terminal block on the UPS rear panel as shown in
Figure 13.
7. Remove the conduit cover plate to gain access to the input and output terminal blocks.
8. Remove the knockouts and attach the conduits to the rear of the conduit plate
9. REMOVE the factory supplied shorting bus bars from the UPS input terminal block.
Shorting bus bar image
Hardwire Connections - UPS Rectifier Input
10. Using Figure 13, make these connections:
• Phase A cable from the upstream feeder panel to UPS Input Terminal 1 (rA)
• Phase B cable from the upstream feeder panel to UPS Input Terminal 3 (rB)
• Phase C cable from the upstream feeder panel to UPS Input Terminal 5 (rC)
• Neutral cable from the upstream feeder panel to UPS Input Terminal 7 (N)
• The safety equipment ground cable from upstream feeder panel to UPS ground bus
bar (PE).
Hardwire Connections - UPS Bypass Input
11. Using Figure 13, make these connections:
• Phase A cable from the upstream feeder panel to UPS Input Terminal 2 (bA)
• Phase B cable from the upstream feeder panel to UPS Input Terminal 4 (bB)
• Phase C cable from the upstream feeder panel to UPS Input Terminal 6 (bC)
• Neutral cable from the upstream feeder panel to UPS Input Terminal 8 (N)
• The safety equipment ground cable from upstream feeder panel to UPS ground bus
bar (PE).
Hardwire Connections - UPS Output
12. Using Figure 13, make these connections:
• Phase A cable from UPS Output Terminal 1 to the downstream distribution panel
Phase A on the panelboard main lug/breaker
• Phase B cable from UPS Output Terminal 2 to the downstream distribution panel
Phase B on the panelboard main lug/breaker
• Phase C cable from UPS Output Terminal 3 to the downstream distribution panel
Phase C on the panelboard main lug/breaker
• Neutral cable from UPS Output Terminal Jumper between 4-5 to the downstream
distribution panel neutral bus
• The safety equipment ground cable from UPS ground bus bar (PE) to the
downstream distribution panel ground bus
13. Replace the conduit plate and secure it

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 12
3.0 OPERATING INSTRUCTIONS
This section provides the steps to startup and operate the UPS. During operation, the audible
alarm may sound, if enabled. To silence the audible alarm, press and hold the “ESC” button for
3 seconds.
Figure 36 Liebert EXS 10kVA Front & Rear View with Covers Removed
Figure 37 Rear Panel Breaker Layout Detail

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 13
3.1 UPS Startup Procedure
The startup procedures can be performed after the UPS installation is complete, all UPS wiring
is complete, and all exterior access panels that were removed for installation have been
replaced on the UPS.
1. Close the upstream feeder breakers for the UPS rectifier and bypass (if wired as dual
input)
2. Close all downstream breakers that might be a distribution panel main breaker and/or
branch circuit breakers. If any optional POD’s are installed, verify that any distribution
breakers on the POD’s are closed
3. Ensure that the UPS maintenance bypass breaker (MBB) on the front of the UPS is
OPEN and the mechanical interlock is secured in the lower position (near the breaker
handle), see Figure 36
4. Close the rectifier input breaker (RIB), bypass input breaker (BIB), and maintenance
isolation breaker (MIB) the rear of the UPS, see Figures 36 & 37. The MIB is also the
main output breaker of the UPS
5. Once the RIB and BIB breakers are closed, the UPS will automatically begin the startup
process and boot up system checks. These checks take approximately 20-30 seconds
6. If any of the UPS operating parameters need to be customized for the installation or
application, refer to section 3.6 and make those changes before proceeding to step 7
7. Once the system checks and/or operating parameters are complete, using the display
panel, press the “POWER” button and press either the “UP or DOWN” button to confirm
“Turn ON UPS”
8. The UPS is operating in Normal Mode providing clean and protected AC power to the
connected equipment
3.2 Transfer Between Operation Modes
3.2.1 Transfer from Normal (Inverter) Mode to Bypass Mode or Turn Off the UPS
To transfer to the internal bypass or turn Off the UPS when the UPS is operating in Normal
Mode (the inverter is supplying clean and protected power to the connected equipment):
1. Press and hold the “POWER” button for 2 seconds.
a. If the bypass power is within normal operating range the screen shown at the
top in Figure 38 will appear, permitting the operations of Turn to Bypass or Turn
off UPS
i. Use the “UP or DOWN” button to select the desired operation or press
the “ESC” button to cancel the operation
ii. Press the “ENTER” button to confirm the action
iii. Press the “ENTER” button again
b. If the bypass power is outside normal operating range, the screen shown in
Figure 39 will appear where the only selection is to Turn off UPS
i. Use the “UP or DOWN” button to select the desired operation or press
the “ESC” button to cancel the operation
ii. Press the “ENTER” button to confirm the action
NOTE
In Bypass mode, the load is not protected as it is powered directly by utility power.

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 14
Figure 38 Bypass normal interface
Figure 39 Bypass abnormal interface

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 15
3.2.2 Transfer from Bypass Mode to Normal (Inverter) Mode or Turn Off the UPS
To transfer to the inverter (normal operation) or turn Off the UPS when the UPS is on internal
bypass mode:
1. Press and hold the “POWER” button for 2 seconds.
a. If the UPS is configured for Normal operation, the screen shown at the top in
Figure 40 will appear, permitting the operations of Turn on UPS or Turn off UPS.
i. Use the “UP or DOWN” button to select the desired operation or press
the “ESC” button to cancel the operation
ii. Press the “ENTER” button to confirm the action
iii. Press the “ENTER” button again
b. If the UPS is configured for or operating in ECO Mode, the screen shown in
Figure 41 will appear where the only selection is to Turn off UPS
i. Use the “UP or DOWN” button to select the desired operation or press
the “ESC” button to cancel the operation
ii. Press the “ENTER” button to confirm the action
Figure 40 Transfer to Inverter Mode
Figure 41 Eco Mode enabled interface

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 16
3.2.3 Transfer from Normal (Inverter) Mode to Maintenance Bypass Mode
To transfer from normal operation to maintenance bypass mode:
1. Press and hold the “POWER” button for 2 seconds.
a. If the bypass power is within normal operating range the screen shown at the
top in Figure 38 will appear, permitting the operations of To the Bypass or Turn
off UPS
i. Select the operation To the Bypass
ii. Press the “ENTER” button to confirm the action
iii. Press the “ENTER” button again
b. If the bypass power is outside normal operating range, the screen shown in
Figure 39 will appear where the only selection is to Turn off UPS
2. Pull down on the slide latch on the front left panel of the unit to gain access to the
Maintenance Bypass Breaker (MBB), refer to Figures 35 & 36
3. Set this panel aside or lay it gently on top the UPS to avoid scratching the panel or top
of the UPS
4. Loosen the thumb screw on the mechanical interlock on the MBB
5. Slide the interlock up and tighten the thumb screw to secure the interlock in place
6. Close the MBB
7. Electrically isolate the UPS module from AC power Input by moving to the rear of the
UPS and opening the Rectifier Input Breaker (RIB), Bypass Isolation Breaker (BIB), and
Maintenance Isolation Breaker (MIB)
The UPS system is now in maintenance bypass mode, which will to allow the UPS module to be
safely serviced by Vertiv Service
3.2.4 Transfer from Maintenance Bypass Mode to Normal (Inverter) Mode
To transfer from normal operation to maintenance bypass mode:
1. Ensure that the mechanical interlock is still secured in the unlocked position
2. On the rear of the UPS, close the rectifier input breaker (RIB), bypass input breaker
(BIB), and maintenance isolation breaker (MIB) the rear of the UPS, see Figures 36 & 37
3. The UPS will begin its startup procedure and operate in internal bypass mode. Verify
that the UPS is operating in internal bypass mode before proceeding
NOTICE
Risk of improper operation. Failure to have the UPS operating on internal bypass and
performing the next step will result in loss of all output power to the connected equipment.
4. On the front of the UPS, open the maintenance bypass breaker (MBB)
5. Loosen the thumb screw on the mechanical interlock on the MBB
6. Slide the interlock down and tighten the thumb screw to secure the interlock in place
7. Press and hold the “POWER” button for 2 seconds.
a. Select the operation Turn on UPS
b. Press the “ENTER” button to confirm the action
c. Press the “ENTER” button again
8. Locate the front left panel that was set aside or was laid on top the UPS. Replace this to
cover
The UPS system is now in normal operation mode providing clean and protected AC power
to the connected equipment

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 17
3.3 REPO
The Liebert® EXS™ is equipped with a Remote Emergency Power Off (REPO) connector for
either Normally Open (N.O.) or Normally Closed (N.C.) systems. An interface with the external
REPO circuit must be field-supplied 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.
Figure 43 Liebert EXS 10kVA REPO connection
NOTE
Vertiv™ recommends using 0.82mm2~ 0.33mm2(18AWG ~ 33AWG) copper signal cable.
If the REPO has been configured to trip an electronically controlled circuit breaker, after the
REPO has been activated it will be necessary to re-arm the switch before restarting the UPS.

Vertiv | Liebert®EXS™, 10kVA Quick Start Guide | 18
Table 13 Physical Specifications
UPS with
1 Battery String
UPS with
2 Battery Strings
UPS with
3 Battery Strings
UPS with
4 Battery Strings
Dimensions, W x D x H inches (mm)
Unit
13.2 x 25.6 x 51.2 (335 x 650 x 1300)
22.7 x 25.6 x 51.2 (576 x 650 x 1300)
Shipping
16 x 30 x 60 (406.4 x 762 x 1524)
36 x 48 x 60 (914.4 x 1219.2 x 1524)
Weight, lbs (kg)
Unit
437 (198.2)
627 (284.4)
893 (405.1)
1,093 (495.8)
Shipping
487 (220.9)
677 (307.1)
1,011 (458.6)
1,211 (549.3)
Color
Black-Gray (RAL 7021)
Table 14 Backup time in minutes----- 10kVA models
UPS
Model
Battery
String
Qty
Load Level
100%
90%
80%
75%
70%
60%
50%
40%
30%
25%
20%
10%
10kW
9kW
8kW
7.5kW
7kW
6kW
5kW
4kW
3kW
2.5kW
2kW
1kW
10kVA/10kW
1 6 7 9 10 12 15 18 23 34 38 50 106
2 18 20 23 25 28 34 38 50 73 90 107 189
3 30 34 36 38 40 50 66 81 107 129 150 306
4 38 41 50 54 62 73 91 107 140 156 190 328
NOTE
Run times shown in Table 14 are approximate. They are based on new, fully charged
batteries at a temperature of 77°F (25°C) with 100% resistive UPS loading. Different loading
will change the actual run times. Run times listed may vary by ±5% due to manufacturing variances of
the batteries.