Instruction/ maintenance manual of the product Liebert GXT 10KVA Emerson
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P OWER A VAILABILITY M AINTENANCE B YPASS C ABIN ET FO R N FINITY ™ & GXT 10 K VA U SER M ANUAL.
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i T ABLE OF CONTENTS I MPORT ANT S AFETY I NSTRUC TIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 G LOSSARY O F S YMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii 8.0 M AINTENAN CE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 8.1 Proper Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
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 Conduct.
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.
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) Bypa.
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 .
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 (TB.
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.
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.
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.
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.
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.
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.
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 .
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.
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.
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 a.
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 .
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.
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.
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.
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.
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).
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.
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.
Specifications 25 NOTES.
Specifications 26.
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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 co.
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