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Liebert
®
NXL
™
Ship-Ahead Input/Output Cabinet
Installation Manual – 250-400kVA, 60Hz
AC Power
For Business-Critical Continuity™
C
ONTACTING
L
IEBERT FOR
S
UPPORT
To contact Liebert Services for information or repair service in the United States, call
1-800-LIEBERT (1-800-543-2378). Liebert Services offers a complete range of start-up services, repair services, preventive maintenance plans and service contracts.
For repair or maintenance service outside the 48 contiguous United States, contact Liebert Services, if available in your area. For areas not covered by Emerson Network Power Liebert Services, the authorized distributor is responsible for providing qualified, factory-authorized service.
For LGS to assist you promptly, please have the following information available:
Part numbers: _________________________________________________________________
Serial numbers:________________________________________________________________
Rating: _______________________________________________________________________
Date purchased: _______________________________________________________________
Date installed:_________________________________________________________________
Location: ______________________________________________________________________
Input voltage/frequency:________________________________________________________
Output voltage/frequency: ______________________________________________________
Battery reserve time:___________________________________________________________
Product Warranty Registration
To register for warranty protection, visit the Service and Support section of our Web site at: www.liebert.com
Click on Product Registration and fill out the form.
TABLE OF CONTENTS
FIGURES
Figure 1
TABLES
i
ii
I
MPORTANT
S
AFETY
I
NSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of your Liebert NXL ™ Input/Output Cabinet. Read this manual thoroughly, paying special attention to the sections that apply to your installation, before working with the UPS. Retain this manual for use by installing personnel.
!
!
WARNING
Risk of electrical shock. Can cause personal injury or death.
Check for voltage with both AC and DC voltmeters before working within the cabinet. Check for voltage with both AC and DC voltmeters before making contact.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should be involved in installing the UPS or preparing the UPS for installation. When performing maintenance with any part of the equipment under power, service personnel and test equipment should be standing on rubber mats.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or those approved for use in fighting electrical fires.
Extreme caution is required when performing installation.
Special safety precautions are required for procedures involving handling, installation of the
UPS system. Observe all safety precautions in this manual before handling or installing the cabinet. Observe all precautions in the Operation and Maintenance Manual, SL-25425, before as well as during performance of all maintenance procedures. Observe all DC safety precautions before working on or near the DC system.
WARNING
Risk of heavy unit falling over. Improper handling can cause equipment damage, injury or death.
Exercise extreme care when handling the cabinet to avoid equipment damage or injury to personnel.
Locate center of gravity symbols and determine unit weight before handling each cabinet.
Test lift and balance the cabinets before transporting. Maintain minimum tilt from vertical at all times.
Slots at the base of the modules cabinets are intended for forklift use. Base slots will support the unit only if the forks are completely beneath the unit.
Read all of the following instructions before attempting to move, lift, remove packaging from or preparing unit for installation.
!
WARNING
Risk of electrical shock and fire. Can cause equipment damage, personal injury or death.
The area around the cabinet should be kept free of puddles of water, excess moisture and debris.
Only test equipment designed for troubleshooting should be used. This is particularly true for oscilloscopes. Always check with an AC and DC voltmeter to ensure safety before making contact or using tools. Even when the power is turned Off, dangerously high potential electric charges may exist at the DC connections.
All wiring must be installed by a properly trained and qualified electrician. All power and control wiring must comply with all applicable national, state and local codes.
One person should never work alone, even if all power is disconnected from the equipment. A second person should be standing by to assist and to summon help in case of an accident.
1
Mechanical Installation
1.0
M
ECHANICAL
I
NSTALLATION
1.1
Introduction
This following section describes the requirements that must be taken into account when planning the positioning and cabling of the Liebert NXL Input/Output Cabinet.
This chapter is a guide to general procedures and practices that should be observed by the installing personnel. The particular conditions of each site will determine the applicability of such procedures.
NOTICE
All equipment not referred to in this manual is shipped with details of its own mechanical and electrical installation.
NOTICE
Three-phase input supply required.
The standard Liebert NXL UPS is suitable for connection to three-phase, four-wire (+ Earth)
TN-C, TN-S, IT-G, IT-IG or, three-phase, three-wire plus ground, IT-UG.
If using with IT Power system, a 4-pole disconnect device must be included as part of building installation.
1.2
Preliminary Checks
Before installing the cabinet, please carry out the following preliminary checks:
• Visually examine the cabinet for transit damage, both internally and externally. Report any damage to the shipper immediately.
• Verify that the correct equipment is being installed.
• Verify that the UPS room satisfies the environmental conditions stipulated in the equipment specification, paying particular attention to the ambient temperature and air exchange system.
1.3
Environmental Considerations
1.3.1 UPS Room
The cabinet intended for indoor installation and should be located in a cool, dry, clean-air environment.
When bottom entry is used, the conduit plate must be installed.
NOTE
The UPS is suitable for mounting on concrete or other non-combustible surface only.
1.4
Positioning
The Liebert NXL Input/Output Cabinet is structurally designed to withstand lifting from the base.
!
CAUTION
Risk of unit tipping over. Can cause equipment damage and personal injury.
Floor mount brackets must remain attached to the frame until the unit is being placed in its final, installed position. (The final installation will always require the unit to be bolted to another Liebert NXL product.) Failure to comply with these instructions could result in equipment damage and/or injury to personnel.
2
Mechanical Installation
1.4.1 Moving the Cabinets
The Liebert NXL Input/Output Cabinet can be handled with a forklift or similar equipment.
When moving the unit by forklift, care must be taken to protect the panels. Do not exceed a 15-degree tilt with the forklift. Bottom structure will support the unit only if the forks are completely beneath the unit.
Handling the cabinet with straps is not authorized.
1.4.2 Clearances
Clearance around the front of the equipment should be sufficient to enable free passage of personnel with the doors fully open. Installation must leave a distance of 24" (610mm) between the top of the cabinet and any overhead obstacles to permit adequate circulation of air coming out of the unit.
Space must be reserved on the left side of the I/O cabinet. The UPS Rectifier/Inverter cabinet can be mounted only on the left side of the I/O cabinet.
1.4.3 Floor Installation/Anchoring
If the equipment is to be located on a raised floor, it should be mounted on a pedestal designed to accept the equipment point loading. Refer to the base view to design this pedestal.
3
Electrical Installation
2.0
E
LECTRICAL
I
NSTALLATION
This chapter provides guidelines for qualified installers who must have knowledge of local wiring practices pertaining to the equipment to be installed.
!
WARNING
Risk of electrical shock. Can cause injury or death.
Check for voltage with both AC and DC voltmeters before working within the cabinet.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should be involved in installing the cabinet or preparing the cabinet for installation.
2.1
External Protective Devices
For safety, circuit breakers must be installed in the input AC supply and external battery system.
Given that every installation has its own characteristics, this section provides guidelines for qualified installation personnel with knowledge of operating practices, regulatory standards and the equipment to be installed.
External overcurrent protection must be provided. See Tables 1 through 4 for overload capacity.
Dual Input
When wiring the cabinet with a separate rectifier and bypass input, each input must be protected separately.
Size the breakers according to the input currents shown in Tables 1 and 2.
2.2
Power Cables
The UPS will require both power and control cabling. All control cables, whether shielded or not, should be run separate from the power cables in metal conduits or metal ducts which are electrically bonded to the metalwork of the cabinets to which they are connected
The cable design must comply with the voltages and currents in Tables 1 through 4, follow local wir-
ing practices and take into consideration the environmental conditions (temperature and physical support equipment and methods), room temperature and conditions of installation of the cable and system’s overload capacity.
For cable entry terminal, refer to Figure 1.
!
WARNING
Risk of electrical shock. Can cause injury or death.
Before cabling the UPS, ensure that you are aware of the location and operation of the external isolators that connect the input/bypass supply to the power distribution panel.
Check that these supplies are electrically isolated, and post any necessary warning signs to prevent their inadvertent operation.
NOTICE
For dual input operation, ensure that any busbars between the bypass and the rectifier input are removed.
When sizing battery cables, a maximum volt drop of 2VDC is permissible at the current ratings given
4
Electrical Installation
The following are guidelines only and are superseded by local regulations and codes of practice where applicable:
• Take special care when determining the size of the neutral cable (grounded conductor), because current circulating on the neutral cable may be greater than nominal current in the case of non-
linear loads. Refer to the values in Tables 2 and 3.
• The grounding conductor should be sized according to the fault rating, cable lengths, type of protection, etc. The grounding cable connecting the UPS to the main ground system must follow the most direct route possible.
• Consideration should be given to the use of smaller, paralleled cables for heavy currents, as this can ease installation considerably.
2.2.1 Power Cable Connection Procedure
Equipment Ground
The equipment ground busbar is located as shown in Figure 1. The grounding conductor must be
connected to the ground busbar and bonded to each cabinet in the system.
All cabinets and cabling should be grounded in accordance with local regulations.
NOTICE
Proper grounding reduces problems in systems caused by electromagnetic interference.
!
WARNING
Risk of fire and electrical shock. Can cause equipment damage, personal injury or death.
Failure to follow adequate grounding procedures can result in electric shock hazard to personnel, or the risk of fire, should a ground fault occur.
All operations described in this section must be performed by properly trained and qualified electricians or technical personnel. If any difficulties are encountered, contact Liebert
Services. See the back page of this manual for contact information.
The grounding and neutral bonding arrangement must be in accordance with local and national codes of practice.
Once the equipment has been positioned and secured, connect the power cables as described in the following procedure.
Refer to the appropriate cable connection drawing in Figure 3 or 4.
1. Verify that the equipment is isolated from its external power source. Check that these supplies are electrically isolated and post any necessary warning signs to prevent their inadvertent operation.
2. Open exterior and interior panels on the front of the I/O.
3. Connect the ground and any necessary main bonding jumper to the equipment ground busbar located in the I/O section.
4. Make power connections and tighten the connections to the proper torque according to one of the two procedures below, depending on the type of installation:
NOTE
Ensure correct phase rotation.
• Top Cable Entry (see Figure 3)
• Bottom Cable Entry (see Figure 4)
5
!
!
Top Cable Entry
When making the power connections, the recommended order of pulling and installing cables is to start from the top connections to the bottom connections. The cables must be routed
around the fault braces (see Detail in Figure 3). This is to prevent the cables from contacting
other busbars. The recommended conduit layout is shown in Figure 1.
Bottom Cable Entry
When making the power connections, the recommended order of pulling and installing cables is to start from the bottom connections to the top connections. The cables must be routed
around the fault braces (see Detail in Figure 3. This is to prevent the cables from contacting
other busbars. The recommended conduit layout is shown in Figure 1.
NOTE
For a Single Input configuration, linking busbars must be installed between the bypass and the rectifier input.
WARNING
Risk of electrical shock. Can cause injury or death.
If the load equipment will not be ready to accept power on the arrival of the commissioning engineer, ensure that the system output cables are safely isolated at their termination.
WARNING
Risk of electrical shock. Can cause injury or death.
When connecting the cables between the battery extremities to the circuit breaker always connect the circuit breaker end of the cable first.
NOTE
If fault bracing brackets were removed during installation, they MUST be replaced.
5. Close and secure the interior and exterior doors.
Table 1
UPS Rating
Current ratings—rectifier input
Voltage, VAC kVA kW Input Bypass Output
250 225 480
300 270 480
400 360 480
480
480
480
480
480
480
Nominal
Current
313
376
500
Table 2 Current ratings—bypass input
UPS Rating kVA kW
250
300
400
225
270
360
Input
480
480
480
Voltage, VAC
Bypass Output
480
480
480
480
480
480
Maximum
Current
392
469
625
Nominal
Current
301
361
481
External
100% Breaker
Trip, Amps
400
500
700
10 Minute
Overload
376
451
601
External
80% Breaker
Trip, Amps
500
600
800
External Breaker
Trip, Amps
400
500
700
Table 3 Current ratings—output
UPS Rating kVA kW
250
300
400
225
270
360
Input
480
480
480
Voltage, VAC
Bypass Output
480
480
480
480
480
480
Nominal
Current
301
361
481
10 Minute
Overload
376
451
601
Electrical Installation
External Breaker
Trip, Amps
400
500
700
6
Electrical Installation
Table 4 Current ratings—battery
UPS Rating kVA kW
250
300
400
225
270
360
Nominal VDC
480
480
480
Maximum Battery
Current at EOD
615
737
981
External Breaker
Trip, Amps
700
800
1000
Table 5
Notes on Tables
1. Nominal input current (considered continuous) is based on full-rated output load. Maximum current includes nominal input current and maximum battery recharge current (considered noncontinuous). Continuous and noncontinuous current are defined in NEC 100. Maximum input current is controlled by the current limit setting which is adjustable. Values shown are for maximum setting of 125%. Standard factory setting is 125%.
2. Recommended bypass external overcurrent protection is based on 125% overload capacity for 10 minutes.
3. All recommended external overcurrent protections are based on 80% rated breakers.
4. Nominal battery voltage is shown at 2.0 volts / cell.
Recommended conduit and cable sizes
Rectifier Input
UPS Rating
Voltage
(VAC) kVA kW Input Bypass Output
250 225
300 270
400 360
480
480
480
480
480
480
480
480
480
Nominal Selection
Top Cable Entry Input
Wire & Conduit
Ph, G THW / FMC
Bottom Cable Entry
Input Wire & Conduit
Ph, G THW / RNC
(2) 2.5C 3-250kcmil,
#1/0AWG
(2) 3C 3-350kcmil,
#1/0AWG
(2) 3C 3-500kcmil,
#1/0AWG
(2) 2.5C 3-250kcmil,
#1/0AWG
(2) 3C 3-350kcmil,
#1/0AWG
(2) 3.5C 3-500kcmil,
#1/0AWG
Bypass Input
UPS Rating Voltage (VAC) kVA kW Input Bypass Output
250 225
300 270
400 360
480
480
480
480
480
480
480
480
480
Nominal Selection
Top Cable Entry Input
Wire & Conduit
Ph, N, G THW / FMC
Bottom Cable Entry
Input Wire & Conduit
Ph, N, G THW / RNC
(3) 2.5C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 2.5C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
(3) 3C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Output
UPS Rating Voltage (VAC) kVA kW Input Bypass Output
250 225
300 270
400 360
480
480
480
480
480
480
480
480
480
Nominal Selection
Top Cable Entry Input
Wire & Conduit
Ph, N, G THW / FMC
Bottom Cable Entry Input
Wire & Conduit
Ph, N, G THW / RNC
(3) 2.5C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 2.5C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
(3) 3C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Battery
Nominal Selection
UPS Rating Voltage (VAC) kVA kW Input Bypass Output
Top Cable Entry Input
Wire & Conduit
Wires, G THW / FMC
Bottom Cable Entry Input
Wire & Conduit
Wires, G THW / RNC
250 225
300 270
400 360
480
480
480
480
480
480
480
480
480
(2) 2.5C 2-350kcmil,
#1/0AWG
(2) 2.5C 2-500kcmil,
#1/0AWG
(3) 2.5C 2-500kcmil,
#4/0AWG
(2) 2.5C 2-350kcmil,
#1/0AWG
(2) 3C 2-500kcmil,
#1/0AWG
(3) 3C 2-500kcmil,
#4/0AWG
If the UPS is used in a four-wire system, the neutral ground jumper must be removed.
Alternate Selection
Top Cable Entry Input
Wire & Conduit
Ph, G THW / FMC
Bottom Cable Entry
Input Wire & Conduit
Ph, G THW / RNC
(3) 2C 3-#2/0AWG,
#1/0AWG
(3) 2.5C 3-#4/0AWG,
#1/0AWG
(3) 2.5C 3-250kcmil,
#1/0AWG
(3) 2C 3-#2/0AWG,
#1/0AWG
(3) 2.5C 3-#4/0AWG,
#1/0AWG
(3) 2.5C 3-250kcmil,
#1/0AWG
Alternate Selection
Top Cable Entry Input
Wire & Conduit
Ph, N, G THW / FMC
Bottom Cable Entry
Input Wire & Conduit
Ph, N, G THW / RNC
(2) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
(2) 3C 3-350kcmil,
2-#4/0AWG, #1/0AWG
(2) 3.5C 3-500kcmil,
2-350kcmil, #1/0AWG
(2) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
(2) 3.5C 3-350kcmil,
2-#4/0AWG, #1/0AWG
(2) 4C 3-500kcmil,
2-350kcmil, #1/0AWG
Alternate Selection
Top Cable Entry Input
Wire & Conduit
Ph, N, G THW / FMC
Bottom Cable Entry
Input Wire & Conduit
Ph, N, G THW / RNC
(3) 2.5C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 2.5C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
(3) 3C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Alternate Selection
Top Cable Entry Input
Wire & Conduit
Wires, G THW / FMC
(3) 2C 2-#4/0AWG,
#1/0AWG
(3) 2C 2-250kcmil,
#1/0AWG
(4) 2C 2-250kcmil,
#4/0AWG
Bottom Cable Entry Input
Wire & Conduit
Wires, G THW / RNC
(3) 2C 2-#4/0AWG,
#1/0AWG
(3) 2C 2-250kcmil,
#1/0AWG
(4) 2.5C 2-250kcmil,
#4/0AWG
7
Table 6 Recommended lug sizes
Cable Size
T&B Series 54000
One Hole
T&B Series 54000
Two Hole
#8 AWG
#6 AWG
#4 AWG
#2-3 AWG
#1 AWG
#1/0 AWG
#2/0 AWG
54930BE
54905BE
54906BE
54942BE
54947BE
54950BE
54951BE
54850BE
256-30695-868
256-30695-733
54811BE
54857BE
256-30695-593
54862BE
#3/0 AWG
#4/0 AWG
250kcmil
300kcmil
350kcmil
400kcmil
500kcmil
600kcmil
54965BE
54970BE
54913BE
54914BE
54915BE
54916BE
54918BE
54920BE
54864BE
54866BE
54868BE
54870BE
54872BE
54874BE
54876BE
54878BE
750kcmil 54922BE 54880BE
Use the T&B crimping tools recommended for these types of lugs.
Electrical Installation
8
Installation Drawings
3.0
I
NSTALLATION
D
RAWINGS
Figure 1 Input/output conduit detail drawing, 250-300kVA Liebert NXL UPS
DC
(2) 3" CONDUIT
BYPASS
(2) 3.5" CONDUIT
INPUT
(2) 3" CONDUIT
OUTPUT
(2) 3.5" CONDUIT
OUTPUT
(2) 3.5" CONDUIT
INPUT
(2) 3" CONDUIT
BYPASS
(2) 3.5" CONDUIT
DC
(2) 3" CONDUIT
LOW VOLTAGE
1.5" CONDUIT
DC POSITIVE
DC NEGATIVE
SEE NOTE 6
TOP VIEW
A
LOW VOLTAGE
(14) 1" CONDUIT
LOW VOLTAGE
1.5" CONDUIT
BOTTOM VIEW
SHOWN IN EXTENDED
POSITION
76.8
( 1950 )
BYPASS
NEUTRAL
GROUND BUS
(TOP ENTRY)
BYPASS INPUT
RECTIFIER INPUT
OUTPUT
INNER PANEL
REMOVED
FOR CLARITY
GROUND BUS
(BOTTOM ENTRY)
OUTPUT
NEUTRAL
D
B
C
59.4
(1509)
56.4
(1432)
52.9
(1343)
49.4
(1255)
46.4
(1178)
43.4
(1102)
40.4
(1026)
34.4
(874)
37.4
(950)
31.4
(797)
28.4
(721)
25.4
(645)
21.9
(556)
.0
( 0 )
FRONT RIGHT SIDE VIEW
( 14 )
TYP
.87
( 22 )
1.75
( 44 )
TYP
(BOTTOM
ENTRY)
.98
( 25 )
1.75
( 44 )
TYP
1.75
( 44 )
TYP
.87
( 22 ) 1.10
( 28 )
1.75
( 44 )
TYP
(TOP
ENTRY)
( 14 )
TYP
DETAIL A
DETAIL B
O
.56
( 14 )
TYP
NOTES:
1. ALL DIMENSIONS ARE IN inches (mm).
2. 24" MINIMUM CLEARANCE ABOVE UNIT REQUIRED FOR AIR EXHAUST.
3. KEEP CABINET WITHIN 15 DEGREES OF VERTICAL.
4. TOP AND BOTTOM CABLE ENTRY AVAILABLE THROUGH REMOVABLE ACCESS
PLATES. REMOVE, PUNCH TO SUIT CONDUIT SIZE AND REPLACE.
1.75
( 44 )
TYP
(BOTTOM
ENTRY)
5. UNIT BOTTOM IS STRUCTURALLY ADEQUATE FOR FORKLIFT HANDLING.
6. THESE BRACKETS CAN BE REMOVED DURING INSTALLATION BUT MUST BE
REPLACED AFTER INSTALLATION.
7. CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUITS.
.88 X .56 SLOT
6 PLACES
EACH BAR
8. ALUMINUM AND COPPER-CLAD ALUMINUM CABLES ARE NOT RECOMMENDED.
9. ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES.
1.75
( 44 )
TYP
DETAIL C
DETAIL D
1.75
( 44 )
TYP
(TOP
ENTRY)
O
.56
( 14 )
TYP
9
Installation Drawings
Figure 2 Input/output conduit detail drawing, 400kVA Liebert NXL UPS
DC
(2) 3" CONDUIT
BYPASS
(2) 3.5" CONDUIT
INPUT
(2) 3" CONDUIT
OUTPUT
(2) 3.5" CONDUIT
OUTPUT
(2) 3.5" CONDUIT
INPUT
(2) 3" CONDUIT
BYPASS
(2) 3.5" CONDUIT
DC
(2) 3" CONDUIT
LOW VOLTAGE
1.5" CONDUIT
LOW VOLTAGE
(14) 1" CONDUIT
TOP VIEW BOTTOM VIEW
LOW VOLTAGE
1.5" CONDUIT
BYPASS
NEUTRAL
DC POSITIVE
DC NEGATIVE
GROUND BUS
LOCATION
(TOP ENTRY)
B
SEE NOTE 6
BYPASS INPUT
A
RECTIFIER INPUT
OUTPUT
INNER PANEL
REMOVED
FOR CLARITY
GROUND BUS
(BOTTOM ENTRY)
OUTPUT
NEUTRAL
D
C
34.4
( 874)
28.4
( 721)
21.9
( 556)
31.4
(797)
O .56
(14)
TYP
FRONT
.87
( 22)
.98 (25)
( 44 )
TYP
(BOTTOM
ENTRY)
RIGHT SIDE VIEW
1.75
( 44 )
TYP
(TOP
ENTRY) (44)
TYP
DETAIL A
DETAIL B
( 14 )
TYP
NOTES:
1. ALL DIMENSIONS ARE IN inches (mm).
2. 24" MINIMUM CLEARANCE ABOVE UNIT REQUIRED FOR AIR EXHAUST.
3. KEEP CABINET WITHIN 15 DEGREES OF VERTICAL.
4. TOP AND BOTTOM CABLE ENTRY AVAILABLE THROUGH REMOVABLE ACCESS
PLATES. REMOVE, PUNCH TO SUIT CONDUIT SIZE AND REPLACE.
5. UNIT BOTTOM IS STRUCTURALLY ADEQUATE FOR FORKLIFT HANDLING.
6. THESE BRACKETS CAN BE REMOVED DURING INSTALLATION BUT MUST BE
REPLACED AFTER INSTALLATION.
7. CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUITS.
8. ALUMINUM AND COPPER-CLAD ALUMINUM CABLES ARE NOT RECOMMENDED.
9. ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL
CODES.
1.75
( 44 )
TYP
( 14 )
TYP
1.75
( 44 )
TYP
(BOTTOM
ENTRY)
.88 X .56 SLOT
6 PLACES
EACH BAR
( 44 )
TYP
DETAIL C
.0
( 0 )
DETAIL D
10
46.4
(1178)
49.4
(1255)
( 44 )
TYP
(TOP
ENTRY)
( 14 )
TYP
Figure 3 Top cable entry routing and installation order
FAULT BRACE
BYPASS INPUT
FAULT BRACE
RECTIFIER INPUT
FAULT BRACE
OUTPUT
FRONT VIEW
DC (POSITIVE)
DC (NEGATIVE)
GROUND (TOP ENTRY)
BYPASS NEUTRAL
BYPASS INPUT
RECTIFIER INPUT
FAULT BRACE
BYPASS INPUT
FAULT BRACE
RECTIFIER INPUT
FAULT BRACE
OUTPUT
OUTPUT
GROUND
(BOTTOM ENTRY)
OUTPUT NEUTRAL
Installation Drawings
OUTPUT CONDUIT
INPUT CONDUIT
BYPASS CONDUIT
DC CONDUIT
DC (POSITIVE)
DC (NEGATIVE)
BYPASS NEUTRAL
BYPASS INPUT
(PHASE C)
RECTIFIER INPUT
(PHASE C)
OUTPUT (PHASE C)
OUTPUT NEUTRAL
SIDE VIEW
Recommended order of installation for cables:
1. DC Power
2. Bypass Neutral
3. Bypass Input Power (Phases A-B-C)
4. Rectifier Input Power (Phases A-B-C)
5. Output Power (Phases A-B-C)
6. Output Neutral
7. Ground
The cables must be routed around the fault braces. This is to prevent the cables from coming in contact with other busbars.
11
Installation Drawings
Figure 4 Bottom cable entry routing and installation order
FAULT BRACE
BYPASS INPUT
FAULT BRACE
RECTIFIER INPUT
FAULT BRACE
OUTPUT
DC (POSITIVE)
DC (NEGATIVE)
GROUND (TOP ENTRY)
BYPASS NEUTRAL
FAULT BRACE
BYPASS INPUT
BYPASS INPUT
FAULT BRACE
RECTIFIER INPUT
RECTIFIER
INPUT
FAULT BRACE
OUTPUT
OUTPUT
GROUND (BOTTOM ENTRY)
OUTPUT NEUTRAL
FRONT VIEW
DC (POSITIVE)
DC (NEGATIVE)
BYPASS NEUTRAL
BYPASS INPUT
(PHASE C)
RECTIFIER INPUT
(PHASE C)
OUTPUT (PHASE C)
OUTPUT NEUTRAL
OUTPUT CONDUIT
INPUT CONDUIT
BYPASS CONDUIT
DC CONDUIT
SIDE VIEW
Recommended order of installation for cables:
1.) Output Neutral
2.) Output Power (Phases A-B-C)
3.) Rectifier Input Power (Phases A-B-C)
4.) Bypass Input Power (Phases A-B-C)
5.) Bypass Neutral
6.) DC Power
7.) Ground
The cables must be routed around the fault braces. This is to prevent the cables from coming in contact with other busbars.
12
Installation Drawings
Figure 5 Floor mount brackets—standard and optional layout
20.7
(525mm)
27.4"
(695mm)
27.4"
(695mm)
BOTTOM VIEW (Standard)
7.7"
(197mm)
4.7"
(120mm)
DETAIL AREA
FLOOR MOUNTS
36.8"
(935mm)
27.4"
(695mm)
KEEP BRACKETSATTACHED
WARNING
BOTTOM VIEW (Optional)
Brackets MUST remain attached to the frame until the unit is being placed in its final installed position. (The final installation will always require the unit to be bolted to another Liebert NXL product.) Failure to comply with these instructions could result in equipment damage and/or injury to personnel.
NOTES:
1. All dimensions are in inches (mm).
2. 24" minimum clearance above unit required.
3. Keep cabinet within 15 degrees of vertical.
4. Top and bottom cable entry available through removable access plates.
Remove, punch to suit conduit size and replace.
5. Unit bottom is structurally adequate for forklift handling.
6. Control wiring and power wiring must be run in separate conduits.
7. Aluminum and copper-clad aluminum cables are not recommended.
8. All wiring is to be in accordance with national and local electrical codes.
9. Optional bottom view can be used to bolt input / output cabinet to floor
and allow the UPS to be positioned. This option requires the
cabinet to be bolted to the floor.
10. Brackets can be removed after the ups has been bolted to the
input / output cabinet.
13
14
Installation Drawings
Ensuring The High Availability
0f Mission-Critical Data And Applications.
Emerson Network Power, the global leader in enabling business-critical continuity, ensures network resiliency and adaptability through a family of technologies—including Liebert power and cooling technologies—that protect and support business-critical systems.
Liebert solutions employ an adaptive architecture that responds to changes in criticality, density and capacity. Enterprises benefit from greater IT system availability, operational flexibility and reduced capital equipment and operating costs.
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.
© 2008 Liebert Corporation
All rights reserved throughout the world. Specifications subject to change without notice.
® Liebert is a registered trademark of Liebert Corporation.
All names referred to are trademarks or registered trademarks of their respective owners.
SL-25440_REV0_05-08
Emerson Network Power.
The global leader in enabling Business-Critical Continuity.
AC Power Embedded Computing
Connectivity Embedded Power
DC Power Monitoring
Technical Support / Service
Web Site www.liebert.com
Monitoring
800-222-5877 [email protected]
Outside the US: 614-841-6755
Single-Phase UPS
800-222-5877 [email protected]
Outside the US: 614-841-6755
Three-Phase UPS
800-543-2378 [email protected]
Environmental Systems
800-543-2778
Outside the United States
614-888-0246
Locations
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
Europe
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD) Italy
+39 049 9719 111
Fax: +39 049 5841 257
Asia
7/F, Dah Sing Financial Centre
108 Gloucester Road, Wanchai
Hong Kong
852 2572220
Fax: 852 28029250
Outside Plant
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EmersonNetworkPower.com
Racks & Integrated Cabinets
Services
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Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co.
©2008 Emerson Electric Co.
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