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Liebert NXL manual

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Table of contents for the manual

  • Page 1

    AC P ow er For Business-Criti cal C on tinuity™ Li eber t ® NXL ™ S hip - Ahead I nput/O utput Cabinet Install atio n Manual – 250-400kV A, 60Hz[...]

  • Page 2

    C ONT ACTING L IEBERT FOR S UPPORT To contact Liebert Services for information or repair service in the United States, call 1-800-LIEBERT (1-800-54 3-2378). Liebert Services offe rs a complete range of start-up services, repair services, preventive maintenanc e plans and service contracts. For repair or mainten ance service ou tside the 48 co ntigu[...]

  • Page 3

    i T A BLE OF CONTENTS 1.0 M ECHANICA L I NST ALLATIO N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Preliminary Checks . . . . . . . . . . . . . .[...]

  • Page 4

    ii[...]

  • Page 5

    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 Lie- bert NXL ™ Input/Output Cabinet. Read this manual thoroughly, payi ng special attention to the sec- tions that apply to your instal lation, before working with the UPS. Retain this man[...]

  • Page 6

    Mechanical Installation 2 1.0 M ECHANICAL I NST ALLATION 1.1 Introduction This following se ction describes the requiremen ts th at must be taken into account when p lanning the positioning and cabling of the Li ebert NXL Input/Output Cabinet. This chapter is a guide to general procedures and pr actices that should be ob served by the installing pe[...]

  • Page 7

    Mechanical Installation 3 1.4.1 Moving the Cabinet s The Liebert NXL Input/Output Cabinet can be handled with a f orklift or similar equipment. When moving the unit by forklift, care must be take n to protect the panels. Do not exceed a 15-degree tilt with the forklift. Bott om structure will support the unit only if the forks are compl etely benea[...]

  • Page 8

    Electrical Installation 4 2.0 E LECTRICAL I NST A LLATION This chapter provid es guidelines fo r qualified install ers who must have knowledge of local wiring practices pertaining to the equipment to be installed. 2.1 External Protective Devices For safety, circuit breakers must be installed in the input AC supply and external ba ttery system. Give[...]

  • Page 9

    Electrical Installation 5 The following are guidelines only and are superseded by local regulations and codes of practice where applicable: • Take special care when determin ing the size of the neutral cable (grounded conductor), because current circulating on the neutra l cable may be greater than nomi nal current in the case of non- linear load[...]

  • Page 10

    Electrical Installation 6 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 [...]

  • Page 11

    Electrical Installation 7 Notes on T ables 1. Nominal input current (considered continuous) is based on full -rated output load. Maximum current includes nominal input current and ma ximum battery recharge current (considered noncontinuous). Contin uous and noncontin uous cu rrent are defined in NEC 100. Maximum input current is controlled by the c[...]

  • Page 12

    Electrical Installation 8 T able 6 Recommended lug size s Cable Size T&B Series 54000 One Hole T&B Series 54000 Two Hole #8 AWG 54930BE 54850BE #6 AWG 54905BE 256-30695-868 #4 AWG 54906BE 256-30695-733 #2-3 AWG 54942BE 54811BE #1 AWG 54947BE 54857BE #1/0 AWG 549 50BE 256-30695-593 #2/0 AWG 54951BE 54862BE #3/0 AWG 54965BE 54864BE #4/0 AWG 5[...]

  • Page 13

    Installation Drawings 9 3.0 I NST ALLATION D RAWINGS Figure 1 Input/output conduit det ail dr awing, 250-3 00kV A Liebert NXL UPS OUT PU T NEUTRA L INNER P ANE L REMOVED FOR CLARIT Y SHOWN IN EXTENDE D POSI TIO N DC (2) 3 " CONDUI T NOTES: 1. ALL DIMENSIONS ARE IN inches (mm). 2. 24" MINIMUM CLE ARANCE A BOVE UNIT REQUIRED FOR AIR EXHAUST[...]

  • Page 14

    Installation Drawings 10 Figure 2 Input/output conduit det ail drawing, 400kV A Liebert NXL UPS NOTES: 1. ALL DIM ENSI ON S ARE IN inche s (mm ). 2. 2 4" MI NI MUM CLEARAN CE AB OVE UNI T REQ UIR ED FO R AI R EXHAUS T . 3. KE EP CABIN ET WI THI N 15 D EGREES OF VE R TI CAL. 4. T OP AND BO TTOM CABLE EN TR Y AV AI LABLE THR OUG H REMOV ABLE ACC[...]

  • Page 15

    Installation Drawings 11 Figure 3 T op cable entry routing and inst allation order The cables must be rout ed around the fault braces. This is to prevent the cables from coming in cont act with other busbars. F AUL T BRACE OUTPU T F AUL T BRACE RECTIFIER INPU T F AUL T BRACE BYP ASS IN PU T BYP ASS NEUT RA L DC (POSITIVE) DC ( NEG A T IVE) GROUND ([...]

  • Page 16

    Installation Drawings 12 Figure 4 Bottom cable entry routing and inst allation order SIDE VIEW F AUL T BRACE OUTPU T F AUL T BRACE RECT IFI ER INPU T F AUL T BRACE BYP ASS INPU T BYP ASS NEUT RA L DC (POSITIVE) DC ( NEG A T IVE) GROU ND ( TO P E NT RY ) BYP ASS IN PU T RECTIFIER INPU T OUTPU T OUTPU T NEUTRA L GROUND (BOT TOM ENT RY) FRONT VIE W Re[...]

  • Page 17

    Installation Drawings 13 Figure 5 Floor mount bracket s—st andard and optional layout WA R N I N G 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 c[...]

  • Page 18

    Installation Drawings 14[...]

  • Page 19

    [...]

  • Page 20

    EmersonNetworkPower.com Ensuring The Hi gh Av ailab ilit y 0f Mission-Critic al Data And Ap plic ations. Emerson Net work P ower , the global leader in enabling business-critical continuity , ensures network resilienc y and adaptability through a family of technologies—inc luding Liebert power and cooling technologies—that prot ect and suppor t[...]