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AC P ow er For Bu siness-Critical Con tinuit y Li eber t N X ™ UPS Install ation M anual–10-30kV A, 208V , 60Hz.
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i T ABLE OF CONTENTS I MPORT ANT S AFETY I NSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 G LOSSARY OF S YMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii 3.4 External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.4.1 Matching Battery Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iii 7.0 I NST ALLATION D RAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 8.0 S P ECIFICATIONS AN D T ECHNICAL D ATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv TA B L E S Table 1 Input dry contacts at X3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 2 Maintenance by pass cabinet interface . . . . . . . . . . . . . . . . . . . .
1 I MPORT ANT S AFETY I NSTRUCTIONS SA VE THESE INSTRUCTIONS This manual co ntains important ins tructions that should be followed during installation of your Liebert NX™ UPS and batteries. Read this manual thor oughly, paying spe cial attention to the sections that appl y to your installation, before working with the UPS.
2 Battery Cabinet Precautions The following warning appl ies to all battery cabine ts supplied with UPS systems. Addit ional warn- ings and cautions applicab le to battery cabinets may be found in 3.0 - Battery Installation . ! CAUTION This equipmen t is fitted wi th RFI suppression filters.
3 G LOSSARY OF S YMBOLS Risk of ele ctrical shock Indicates caution followed by important instructions AC input AC output Requests the user to consult the manual Indicates the unit contains a valve-re.
Installation 4 1.0 I NST ALLATION The Liebert NX™ UPS is designed primarily for te lecommunications and data proce ssing applica- tions. Liebert Corporation neither recommends nor kno wingly sells this product for use with life sup- port and other designated “critical” devices.
Installation 5 1.2.1 Storing for Del ayed Installat ion If the equipment will not be instal led immediately, it must be stored indoors where the humid ity is no higher than 90% and the temperat ure is no higher than 104°F (40°C). The storage area must protect the NX from excessive moisture (see 6.
Installation 6 1.4.3 Special Consid erations for 1+N Systems 1. Consider the grounding configuration of your sy stem before finalizing module placement.
Installation 7 1.6.1 Clearances There are no ventilation grilles on the sides or rear of the UPS. The sides must be accessible during installation. After install ation, the unit may be placed with the rear against a wall and optional cabi- nets on either side.
Installation 8 1.6.4 Optional Cabinet s If your NX in stallation includes a Maintenance B y pass Cabinet, the NX must be positioned to allow the Maintenance Bypass Ca binet to be bolted to left side of the NX (see Figure 1 ). Cables from the Maintenance Bypass Cabi net must be brou ght thro ugh the bottom side of the NX for connection.
Electrical Connections 9 2.0 E LECTRICAL C ONNECTIONS The UPS requires both power and co ntrol cabling once it has been mecha nically installed. All control cables must run separate from power cables in metal conduits or metal ducts that are electrically bonded to the metalwork of the cabi nets to which they are connected.
Electrical Connections 10 2.1.2 UPS Input Configuration Figure 2 illustrates the NX in a split bypass (dual-i nput) configuration. In this configur ation the Static Bypass and the Maintenance Bypass lines are sup plied from a separate feed from the Main input.
Electrical Connections 11 2.1.4 Cable Connections The rectifier input, bypass and output are easily ac cessible from the left side of the unit for installa- tion. All require lug type termination s. They are connected to busbars on the le ft side of the NX and below the switch, as shown in Figure 3 .
Electrical Connections 12 2.1.5 Safety Ground The safety ground busbar is located below the neutral input and output busbars as shown in Figure 5 below. The safety ground cable must be connect ed to the ground busbar and bonded to each cabinet in the system.
Electrical Connections 13 2.1.7 Cabling Procedure Once the equipment has been posi tioned and secured for operation, and the battery and ground col- lars have been connected (see 2.1.4 - Cable Connectio ns ), connect the power cables as described below.
Electrical Connections 14 Internal UPS Battery Connections The UPS internal batteries will be connected at t he factory, EXCEPT the Anderson connections between the shelves and to the fuses. Observe the battery cable polarity. Be sure that the battery conn ector is made with the cor- rect polarity.
Electrical Connections 15 Figure 7 Auxiliary terminal block det ail (Monitoring Board) 2.3 Dry Cont act s The UPS provides input dry contacts and output dry contacts. 2.3.1 Input Dry Cont acts There are several input dry contacts at the X3 slot. Figure 8 Input dry cont acts T able 1 Input dry cont acts at X3 Position Name Description J4.
Electrical Connections 16 2.3.2 Maintenance Byp ass Cabinet Interface J26 and J30 are the MBC interfa ce. 2.3.3 BCB Box Interface J10 is the BCB box interface. Figure 9 Jumper connection for BCB interface T able 2 Mainten ance bypass cabin et interf ace Position Name Description J26.
Electrical Connections 17 2.3.4 Output Dry Cont act s There are three output dry contac t relays at the X1 slot (see Figure 10 and Table 4 ). Figure 10 Output dry cont acts and EPO wiring for firmware be fore M170 2.
Electrical Connections 18 Firmware M200 or Later The UPS has an Emergency Power Off (EPO) function op erated by a button on the control panel or by a remote contact provided by the user. The EPO button is under a hinged, cl ear plastic shield. The X2 slot, shown in Figure 11 , is the remote EPO input interf ace.
Battery Installation 19 3.0 B ATTERY I NST ALLATION 3.1 Introduction Liebert recommends that the batteries in external cabinets match the internal b atteries in the NX in manufacturer an d type.
Battery Installation 20 3.4 External Battery Cabinet Inst allation 3.4.1 Matching Battery Cabinet s Two sizes of optional battery ca binets a re available. Refer to Figures 13 and 14 . The same model bat- tery cabinet may b e installed in para llel in multip le cabinet strings for add itional capacity.
Battery Installation 21 Figure 13 Narrow battery cabinet, 27 in. (690mm) - rear view Figure 14 Wide batter y cabinet, 57 in. (1488mm) - front view BCB plate and BCB Battery trays To p cable entry Batt.
Battery Installation 22 3.4.3 Inst allation Considerations Position —Liebert battery cabi nets come in versions specific to ei ther the left or right side of the UPS. Control wires and power cables are cut to diffe ren t lengths for the d iffer ent versions.
Battery Installation 23 Figure 15 Internal cable wiring from battery cabinet to Liebert NX Figure 16 Battery tray and supp orts Power cables from batteries Power cables from output power switch Power .
Battery Installation 24 3.4.4 Connecting the Battery Cabinet t o the UPS After the battery cabinet equipmen t has been positioned and secure d fo r operation and the batteries have been connected, connect the power cables as described below. (See Figure 34 .
Maintenance B ypass Cabinet 25 4.0 M AINTENANCE B YP ASS C ABINET The Maintenance Bypass Cabinet is designed to op erate in UPS mode, bypass mode and maintenance mode. The mode is selected using the Bypass Switch. Figure 17 Single UPS with external Maintenance Bypass Cabine t—typical configuration 4.
Maintenance B ypass Cabinet 26 4.3 Byp ass Mode When the Maintenance Bypass Cabinet is in the Bypass mode, it provides an alternate path for p ower to the connected equipment.
Maintenance B ypass Cabinet 27 4.6.2 Power Cable Inst allation Refer to Tables 29 , 30 and 32 when selecting cables. 4.6.3 Input/Output W iring Follow the steps be low to connect the input wiring: 1.
Maintenance B ypass Cabinet 28 7. Connect the s ystem input cables between the Maintenance Bypass Cabine t 'UPS Input' Busbars (A-B-C N terminals) and UPS input bu sbars (A-B-C N terminals) and tighten the connections to 44 lb-in. (5 N-m) (M6 bolt).
Maintenance B ypass Cabinet 29 4.7 Bolting Cabinet s T ogether 1. Line up cabinets so that mounting holes are aligned. 2. Using supplied hardware, bolt the cabinets toge ther. The bolts may be in serted from either the UPS side or from the MBS side, whichever is mo re convenient.
Options 30 5.0 O PTIONS 5.1 Load Bus Synchronization The Load Bus Synchronizer (LBS) keeps the output of two independent UPS systems or para llel UPS systems in synchronization even when the systems are operating in different modes and even when either or both systems are operat ing on batteries.
Options 31 5.2 Configuring Parallel System Operation 5.2.1 General The NX uses intelligent and reliable decentralized te chnology to achieve parallel operatio n of two or more modules of the same rating. The 1+N system is used to: • Increase the reli ability of the syst em to ensure adequate power supply to the critical load con- nected.
Appendix 32 5.2.3 Operating Principles Redundancy Paralleling The 1+N parallel redundant system can noticeably improve system reliability. In normal condi tion, none of the UPS modules wo rk at full load. That me ans that even if the load is increased, the system will not transfer to bypass.
Appendix 33 5.3.5 Power Cables Wiring of power cables is simila r to that of single module system (See 2.1 - P ower Cabling ). The bypass sources of all modules should be the same, an d the outputs should be connected altogether cor- rectly. Power cables will be supp lied by customer.
Appendix 34 Figure 24 Auxiliary dry cont act cables for output breaker in mu lti-module system Figure 25 Dry cont act s, multiple UPS modules with distribution p anel ! CAUTION The auxiliary control wire must be installed to ensure proper operation of the system.
Options 35 5.3.7 Emergency Power Off (EPO) The external emergency stop facility is identical to that described for the single unit installation— that an individual emergency stop button is provided for each unit.
Options 36 5.4 Battery Circuit Breaker Box The box contains the same battery isolating circu it breaker as mounted in the battery cabinet. Two battery circuit breaker boxes are ava ilable for u se in .
Options 37 Figure 27 Battery circuit breaker box co nnections NOTE 1. The signal cables in th is figure must be shield ed and double-insula ted. 2. Connect the Pes (Protection Earth) of the UPS cabinet an d BCB box to the same point. DPN U3813078 Rev.
UPS Specifications 38 6.0 UPS S PECIFICATIONS These specificat ions describe requ ire ments for the Liebert NX UPS. 6.1 Conformity and St andards The UPS has been designed to co nform to the following standards: • IEEC1000-4-5 •A S M E • CSA 22.
UPS Specifications 39 6.4 UPS Electrical Characteristics T able 10 UPS terminal Input (for single-input unit) Unit Rating Nominal Input Current Maximum Input Current OCP Current OCP Device Rating Bolt.
UPS Specifications 40 6.4.1 Battery Manufacturers and Models Either of two manufacturers’ batter ies will be installed in the NX 10-30 kVA 208V as shipped.
UPS Specifications 41 6.4.4 Inverter Output 6.4.5 Byp ass Input T able 14 Inverter output Rated Power 10kVA 15kVA 20kVA 30kVA Rated voltage, VAC 120/208 Supply 3-phase, 4-wire plus ground Frequency, Hz 50 / 60 Rated Power, kW 8 12 16 24 Three -phase transi ent overload, min.
Installation Drawings 42 7.0 I NST ALLATION D RA WINGS The diagrams in this section illustrate the key me chanical and ele ctrical characteristi cs of the NX UPS System cabinets. Figure 28 Dimensional view- front and lef t side views 1. All d imensions are in mi llimeters.
Installation Drawings 43 Figure 29 Dimensions continued—top and bottom views Figure 30 Main component s—typical unit Rear st abiliz- ing foot Air Exhaust Power Cable Entry Area To p a n d Bottom Air 10mm dia. threaded mounting holes 4 (typ). See Notes 8 and 9 above .
Installation Drawings 44 Figure 31 Cable connections NOTES 1. All dimensions are millimeters. 2. Top and bottom cable entry available throug h removable access plates. Remove, punch to accommodate conduit size and replace. 3. Control wiring and power wiring must be run in separate conduit.
Installation Drawings 45 Figure 32 Location of internal batteries Battery 417mm 687mm 186mm.
Installation Drawings 46 Figure 33 Battery connections + - + - + - + - + - + - + - - + + - + - + - + - + - + - + - - + + - + - + - + - + - + - + - - + - N + W5 0 1 3pc s W 500 18 p cs W 510 t o W 511 .
Installation Drawings 47 Figure 34 Battery cabinet interconn ection T able 16 Liebert -supplied in terconnect wiring Run From To Conductors A UPS battery terminal block External 27" or 59" b.
Installation Drawings 48 Figure 35 Maintenance Byp ass interconnection T able 17 Liebert-supplied interconnec t wiring for Maintenance Byp ass Cabinet Run From To Conductors A Utility AC source Mainte.
Installation Drawings 49 Figure 36 NX 1+1 p arallel cabinet interconnections T able 18 Liebert-supplied interconnect wiring Run From To Conductors Cabinet Type A Utility AC Source Paralleling Cabinet .
Installation Drawings 50 Figure 37 Lineup det a il—SlimLin e distribution cabin et to NX T able 19 Liebert-supplied interconnec t wi ring—SlimLine distri bution cabin et to NX Run From To Conducto.
Installation Drawings 51 Figure 38 Lineup det ail—1+N T ype A connection to NX T able 20 Interconnect wiring—1+N T ype A connection to NX RUN FROM TO CONDUCTORS A1-A4 Utility AC Source UPS #1-UPS .
Installation Drawings 52 Figure 39 Lineup det ail—1+N T y pe A1 connect ion to NX T able 21 Interconnect wiring—1+N T ype A1 connection to NX Run From To Conductors A Utility AC Source Paralleling.
Installation Drawings 53 Figure 40 Lineup det ail—1+N T ype B connection to NX T able 22 Interconnect wiring—1+N T ype B connection to NX Run From To Conductors A1-A4 Utility AC Source UPS #1-UPS .
Installation Drawings 54 Figure 41 Lineup det ail—1+N T y pe B1 connect ion to NX T able 23 Interconnect wiring—1+N T ype B1 connection to NX Run From To Conductors A Utility AC Source Paralleling.
Installation Drawings 55 Figure 42 Lineup det ail—1+N T ype C connection to NX T able 24 Interconnect wiring—1+N T ype C connection to NX Run From To Conductors A Utility AC Source Paralleling Ca .
Installation Drawings 56 Figure 43 Lineup det ail—1+N T y pe C1 connect ion to NX T able 25 Interconnect wiring—1+N T ype C1 connection to NX Run From To Conductors A Utili ty AC Source Parallelin.
Installation Drawings 57 Figure 44 Lineup det ail—1+N T ype D connection to NX T able 26 Interconnect wiring—1+N T ype D connection to NX Run From To Conductors A Utility AC Source Paralleling Ca .
Installation Drawings 58 Figure 45 SlimLine locations Battery MBC UPS SlimLine MBC UPS SlimLine UPS Battery SlimLine UPS SlimLine UPS Sl i mL i ne 1 + N Par al l e li ng Cab i ne t Sl i mL i ne 1 + N .
Specifications and Technical Data 59 8.0 S PECIFICATIONS AND T ECHNICAL D AT A 8.1 Lug Size and T orque Requirements Use commercially available solderless lugs for the wi re siz e required for yo ur applicat ion. Refer to Table 27 . Connect wire to the lug using tools and pr ocedure s specified by the lug manufacturer.
Specifications and Technical Data 60 T able 29 Maintenance byp ass cabine t electrical dat a (single input) kVA Type Maintenance Bypass I/P Voltage (VAC) Bypass Cabinet Max Input Current Cabinet Input.
Specifications and Technical Data 61 15 D, M 240 47 60 208 42 60 15 E, N 480 24 30 480 18 3 0 15 E, N 600 19 30 600 14 2 0 15 E, N 220 53 70 220 39 5 0 10 A, J 208 35 50 208 28 40 10 B, K 480 16 20 20.
Specifications and Technical Data 62 15 F, P 480 21 30 24 30 208 42 60 15 F, P 600 17 30 19 20 208 42 60 15 F, P 208 49 60 54 60 208 42 60 15 F, P 220 46 60 51 60 208 42 60 15 F, P 240 42 60 47 50 208.
Specifications and Technical Data 63 2+0 A00, BR0 30 208 104 12 5 208 16 7 225 20 208 70 90 208 111 150 15 208 53 70 208 83 1 25 10 208 35 45 208 56 70 CR1 30 208 7 3 10 0A 208 167 225 CR1, DR1 30 220.
Specifications and Technical Data 64 2+1 E00, FR0 30 208 104 12 5 208 16 7 225 20 208 70 90 208 111 150 15 208 53 70 208 83 1 25 10 208 35 45 208 56 70 G01, GR1 10 208 73 100 208 56 70 10 220 69 100 2.
Specifications and Technical Data 65 3+0 E00, FR0 30 208 104 12 5 208 25 0 400 20 208 70 90 208 167 225 15 208 53 70 208 125 200 10 208 35 45 208 83 1 25 G01, GR1 10 208 110 15 0 208 83 125 10 220 104.
Specifications and Technical Data 66 3+1 J00, KR0 30 208 104 12 5 208 25 0 400 20 208 70 90 208 167 225 15 208 53 70 208 125 200 10 208 35 45 208 83 1 25 LR1 10 208 110 15 0 208 83 125 10 220 104 15 0.
Specifications and Technical Data 67 4+0 J00, KR0 30 208 104 12 5 208 33 3 500 20 208 70 90 208 222 300 15 208 53 70 208 167 225 10 208 35 45 208 111 150 LR1 10 208 146 17 5 208 11 1 150 10 220 138 17.
Specifications and Technical Data 68 T able 32 Maintenance byp ass cabinet lug size s Input Unit Rating Nominal System Input Voltage Bolt Size Maximum Recommended Lug Lug T&B One Hole 54000 Lug T&.
Specifications and Technical Data 69 Output Unit Rating Nominal System Output Voltage Bolt Size Maximum Recommended Lug Lug T&B One Hole 54000 Lug T&B One Hole REDDY 30 600 6M (1/4”) 5 4130 .
Specifications and Technical Data 70 8.2 Cable Lengths: Floor to Connection Point Inside UPS To help calcula te the total cable l ength required, refer to Table 37 for th e distance from the floor to selected connection points inside the NX.
Specifications and Technical Data 71 NOTES.
Specifications and Technical Data 72.
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