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Manual Emerson GXT 10KVA

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  • Emerson GXT 10KVA - page 1

    P OWER A VAILABILITY M AINTENANCE B YPASS C ABIN ET FO R N FINITY ™ & GXT 10 K VA U SER M ANUAL ...

  • Emerson GXT 10KVA - page 2

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  • Emerson GXT 10KVA - page 3

    i T ABLE OF CONTENTS I MPORT ANT S AFETY I NSTRUC TIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 G LOSSARY O F S YMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.0 G ENERAL D ESCRIPTION . . . . . . . . . . . . . . . . . . ...

  • Emerson GXT 10KVA - page 4

    ii 8.0 M AINTENAN CE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 8.1 Proper Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 8.2 Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . ...

  • Emerson GXT 10KVA - page 5

    1 I MPORT ANT S AFE TY I NSTRUCTIONS SA VE THESE INSTRUCTIONS This manual contains importa nt inst ructions that should be clos ely followed during installation and maintenance of this Main tenance Bypass Cabinet. This product is designed for commercial / industrial us e only. This prod uct is not intended for use with life support and other design ...

  • Emerson GXT 10KVA - page 6

    2 G LOSSARY O F S YMBOLS Risk of Electrical Shock Indicates Warning or Caution Followed by Important Instructions AC Input AC Output Requests the user to consult the manual Equipment Grounding Conductor ON OFF i ...

  • Emerson GXT 10KVA - page 7

    General Descri ption 3 1.0 G ENERAL D ESCRIPTION Congratulations on your purchase of Liebert’s Nfi nity™ Maintenance Bypass Cabinet with Config- urable Output Distribution. As with every Liebert product, we stand behind our quality. If you have any questions concerning this Maintenance Bypass Ca binet, please feel free to contact your local dea ...

  • Emerson GXT 10KVA - page 8

    General Descri ption 4 Figure 1 Front view Byp ass availability indicator (amber) Cooling fans (transformer models only) UPS input powe r present (amber) UPS output availability indicator (green) Bypass switch (SW1) UPS input switch (SW2) Support bracket Output breake r (CB1) ...

  • Emerson GXT 10KVA - page 9

    General Descri ption 5 Figure 2 Rear view (w ithout transformer) Configurable outpu t distribution (opti onal) Hardwire out put (standard) Maintenance bypass input (TB1) UPS output (TB4) Maintenanc e bypass input (TB2) UPS input (TB3) Support bracket Hardwire output terminal block (TB5) ...

  • Emerson GXT 10KVA - page 10

    General Descri ption 6 Figure 3 Rear view (with transformer) Hardwire output terminal bloc k (TB6) Configurable output distribution (o ptional) Hardwire output (standard) Maintenance byp ass input (TB1) (TB2) UPS output (TB5) UPS input (TB3) T ap selector (TB4) Support bracket ...

  • Emerson GXT 10KVA - page 11

    Modes of Operati on 7 2.0 M ODES OF O PERATION The Nfinity Maintenance Bypa ss Cabinet is designed to operate in two modes: UPS Mode and Bypass Mode. 2.1 UPS Mode While the N finity Maintena nce Bypass Ca binet is in UPS Mode, the U PS is supplyin g the connected load with continuous, high quality AC power. In this mode of operation, the load is pr ...

  • Emerson GXT 10KVA - page 12

    Major Compo nents 8 3.0 M AJOR C OMPONENT S The following i s a general descripti o n of each component and its functi ons. Please review this section carefully, a s it will give you a be tter understandi ng as to ho w the Nfini ty Maintenan ce Bypass Cabi - net operates. 3.1 Byp ass Switch The Bypass Switch allows easy and rapid transf er of conne ...

  • Emerson GXT 10KVA - page 13

    Preparation 9 4.0 P REP ARATION These installatio n instructions p rovide all the i nformation needed for posi tioning the N finity Mainte- nance Bypass Cabinet (including environmenta l requirements) and for connecting the input and out- put power cables. 4.1 Inspection Upon receiving the Nfinity Maintenance Bypass Cabinet, examine the packagin g ...

  • Emerson GXT 10KVA - page 14

    Unloading 10 5.0 U NLOADING The unit frame is bolted to the shipping pallet to ensure safety. Liebert recommends using a pallet jack to transport the unit to its operat ing locati on prior to unbolting the unit. 5.1 Unloading the Maintenance Byp ass Cabinet 1. Once the Maintenance Bypass Cabin et is near th e desired operating location , remove the ...

  • Emerson GXT 10KVA - page 15

    Unloading 11 5.2 St ationary Mounting Additional sta bility can be added by bolti ng the mounting brackets (used in shippin g) to the floor. For greater stability, use a higher-g rade bolt. R efer to the dimensio ns below w hen drilling h oles for stationary mounting. Mounting bracket on rear of unit 4-3/4" (120 mm) 28" (71 1 mm) 5/16&quo ...

  • Emerson GXT 10KVA - page 16

    Cable Installation 12 6.0 C ABLE I NST ALLATION 6.1 Wiring Prep aration Be sure that the unit is not connected to any AC ma ins power source or UPS be fore i nstalling an y wir- ing to this unit. This Main tenance Bypass Cab inet should be instal led by a qualifie d / certified electri- cian. 6.2 Prep aring Internal Wiring The Maintenanc e Bypass C ...

  • Emerson GXT 10KVA - page 17

    Cable Installation 13 Figure 7 Mai ntenance By p a ss Cabinet w ith transforme r Figure 8 Mai ntenance By pass Cabinet withou t transformer SW2 UPS Input Switch Transformer TB4 208/240 V Ta p S e l e c t o r UPS Input UPS Output Output SW1 Bypass Switch CB1 Output Breaker TB5 TB2 TB3 TB6 Input 1 Input 2 TB1 Single input jump er (remove for dual inp ...

  • Emerson GXT 10KVA - page 18

    Cable Installation 14 6.4 Removing the Cover Plates On the back of the Mainte nance Bypass Cabinet, cover plates are over the input an d output terminals (see illus- tration at right). Remove th ese using a phil lips screw- driver. Keep screws and plates to one side. 6.5 Power Cable Inst allation Refer to Table 3 below when selecting cab les. 6.6 R ...

  • Emerson GXT 10KVA - page 19

    Cable Installation 15 6.7 Input and Output Wiring To connect th e input wiring: 1. Locate the input wiring access (see illustration a t right). 2. Remove the knockout and pull the three/four input wires through it, allowing some slack for installation. 3. Secure the conduit to the rear panel of the Maintenance Bypass Cabi net. 4. Input power cables ...

  • Emerson GXT 10KVA - page 20

    Cable Installation 16 Figure 9 Electrical connec t ions—transforme r model MBC 120V 120V 208V 240V Common Ground Wire Co nnection T orque V alue: 13 in-lbs Common Ground Wire Co nnection T orque V alue: 120 in-lbs Common Ground Wire Connection T orque V a lue: 120 in-lbs Common Ground Wire Conn ect ion T orque V alue: 120 in-lbs GEC (Groundi ng E ...

  • Emerson GXT 10KVA - page 21

    Cable Installation 17 Figure 10 Electrical connections—n on-transformer model MBC 120V 120V 208V 240V Common Ground Wire Co nnection T orque V alue: 13 in-lbs Common Ground Wire Connection T orq ue V a lue: 120 in-lbs Common Ground Wire Connection T orque V a lue: 120 in-lbs Common Ground Wire Connection T orque V alue: 120 in-lbs TB4 UPS Output ...

  • Emerson GXT 10KVA - page 22

    Cable Installation 18 Figure 1 1 Connecting Nfinity to Maintena nce Bypass with transforme r NOTE 1. SINGLE-SOURCE FEED —If feeding the Maintenance By pass Cabinet from a single source, the input connection may be made to either TB1 or TB2. 2. DUAL-SOURCE FEED —If feeding the Maintenance Bypa ss Cabinet from a dual source, the UPS input supply ...

  • Emerson GXT 10KVA - page 23

    Cable Installation 19 Figure 12 Connecting Nfinity to Maintena nce Bypass without tra nsformer NOTE 1. SINGLE-SOURCE FEED —If feeding the Maintenance By pass Cabinet from a single source, the input connection may be made to either TB1 or TB2. 2. DUAL-SOURCE FEED —If feeding the Maintenance Bypa ss Cabinet from a dual source, the UPS input suppl ...

  • Emerson GXT 10KVA - page 24

    Cable Installation 20 Figure 13 Connecting Maintenance Byp ass to GXT10000T -208X ! CAUTION It is mandatory to connect exactly as shown. NOTE 1. SINGLE-SOURCE FEED —If feeding the Maintenance By pass Cabinet from a single source, the input connection may be made to either TB1 or TB2. 2. DUAL-SOURCE FEED —If feeding the Maintenance Bypa ss Cabin ...

  • Emerson GXT 10KVA - page 25

    Cable Installation 21 Figure 14 Connecting Maintenance Byp ass to GXT10000T -240X NOTE 1. SINGLE-SOURCE FEED —If feeding the Maintenance By pass Cabinet from a single source, the input connection may be made to either TB1 or TB2. 2. DUAL-SOURCE FEED —If feeding the Maintenance Bypa ss Cabinet from a dual source, the UPS input supply connection ...

  • Emerson GXT 10KVA - page 26

    Operation 22 7.0 O PERATION 7.1 St art-Up and Initialization To start up the Nfinity UPS while it is connected to the Nfinity Ma intenance Bypass: 1. Set the Maintenance Bypass sw itch (SW1) to th e UPS positi on on the Maintenance Bypass Cabinet. 2. Close the UPS source switch (SW2). 3. Close the output circuit breaker (CB1). 4. Close the input ci ...

  • Emerson GXT 10KVA - page 27

    Maintenance 23 8.0 M AINTENANCE 8.1 Proper Care Keeping your Liebert Nfinity Maintenance Bypass Cabi net operating properly is imperative to opti- mal performance and life of the unit . It is recommended that a certif ied technician perform preventive and corrective maintenance. Liebert Global Services (LGS) is dedicate d to ensuring the highest le ...

  • Emerson GXT 10KVA - page 28

    Specifications 24 9.0 S PECIFICATIONS General & Environmental Rating Unit Rating kVA Models NMB1x and NMB4x = 18 Models NMB5x and NMB8x = 20 Amps Models NMB1x and NMB4x = 100 max Models NMB5x and NMB8x = 125 max Safety Standards UL 1778, c-UL Mechanical Dimensions Width In (mm) 9.5 (241) Depth 26.5 (700) Height 30.4 (775) Weight lb (kg) 287 (13 ...

  • Emerson GXT 10KVA - page 29

    Specifications 25 NOTES ...

  • Emerson GXT 10KVA - page 30

    Specifications 26 ...

  • Emerson GXT 10KVA - page 31

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  • Emerson GXT 10KVA - page 32

    The Comp any Behind the Products With over a million installations around th e 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 fo r sensitive electronics: • Env ironmental systems—close-control air conditioning from 1 to 60 to ...

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