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AC Power
For Business-Critical Continuity™
® ™
Liebert GXT2-PP20KRT208
User Manual–Parallel POD for Liebert GXT2-10000RT208
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TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 GLOSSARY OF SYMBOLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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8.6 Remove a Single UPS from the Paralleling System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 8.7 Replacing a Faulty Power Module or UPS Internal Battery . . . . . . . . . . . . . . . . . . . . . . . . . 24 8.8 Overload Condition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 8.9 Battery Low Voltage—Battery Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 9.
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IMPORTANT SAFETY INSTRUCTIONS WARNING ! Risk of electric shock. Can cause equipment damage, injury or death. Extreme caution is required when performing maintenance. Service and maintenance work must be performed only by properly trained and qualified personnel and in accordance with applicable regulations and manufacturers’ specifications. Be constantly aware that the UPS system contains high DC voltages as well as high AC voltages. • Opening or removing the cover may expose personnel to leth
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GLOSSARY OF SYMBOLS Risk of electrical shock Indicates caution followed by important instructions ! AC input AC output Suggests the user consult the manual i - + Indicates the presence of a valve-regulated lead acid battery PbH2SO4 R Recycle DC voltage Equipment grounding conductor Bonded to ground AC voltage WEEE logo 2
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Introduction 1.0 INTRODUCTION Congratulations on your choice of the Liebert GXT2-PP20KRT208 parallel POD. It allows parallel connection of input and output up to three Liebert GXT2-10000RT208 UPSs. The Liebert GXT2-PP20KRT208 parallel POD features an N+1 redundancy. While one Liebert GXT2-10000RT208 UPS is available at 10kVA nominal power rating, connecting three UPSs in paral- lel provides 20kVA of output power, plus redundancy of one 10kVA UPS. The Liebert GXT2-PP20KRT208 is a compact, paral
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System Description 2.0 SYSTEM DESCRIPTION 2.1 Compatibility The Liebert GXT2-PP20KRT208 parallel POD is compatible only with the Liebert GXT2-10000RT208 UPS. No more than three Liebert GXT2-10000RT208 UPSs can be connected to the parallel POD. 2.2 Redundancy Design During normal operation with parallel connection of three Liebert GXT2-10000RT208 UPSs, the par- allel POD supplies 20kVA of output power plus redundancy of one 10kVA UPS. With the Liebert GXT2-PP20KRT208 N+1 redundancy design, the
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System Description ™ 2.4 Liebert MultiLink Shutdown The parallel POD supports the orderly shutdown of computer operating system through its compati- bility with Liebert MultiLink 1.5 software. When properly configured to operate with Liebert Mul- tiLink 1.5, the parallel POD will operate as a complete system; On Battery and Low Battery events will not be sent from the UPS when it is operating in redundant mode and the remaining UPS is able to support the total load. For the paralleling system
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System Description Figure 3 Configure Liebert MultiLink 1.5 for shutdown to work with a parallel system Select this option either while installing the software or later through the connection options Enable shutdown ... ... for these events 6
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Major Components 3.0 MAJOR COMPONENTS The Liebert GXT2-PP20KRT208 has five main components (see Figure 4): • UPS input / output circuit breakers • Main input / output terminal blocks • Parallel communication ports • Maintenance bypass breaker • Input and output slots for each UPS Figure 4 Liebert GXT2-PP20KRT208 components Main Input / Output Terminal Blocks Parallel Communication Ports UPS Input / Output Circuit Breakers Maintenance Bypass Breaker Input and Output Slots for UPS 3.1 Input and
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PD-202 OUTPUT BREAKER 20A 250V~/T OUTPUT BREAKER 20A 250V~/T OUTPUT L1 T20A 125V~ PUSH TO RESTART OUTPUT BREAKER 20A 250V~/T OUTPUT BREAKER 20A 250V~/T T20A 125V~ PUSH TO RESTART PD-201 OUTPUT L2 Major Components 3.5 Parallel Communication Port The Liebert GXT2-PP20KRT208 parallel POD has three 15-pin parallel communication ports on the upper right of the parallel POD. Several signals are provided on this port to communicate with each UPS. Use the parallel communication cables for the connec
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What’s Included 4.0 WHAT’S INCLUDED The Liebert GXT2-PP20KRT208 is shipped with: • User Manual: 1 • Cover Plate for Main Terminal Block: 1 • Cover Plate for Parallel Communication Cable Connectors: 1 • Edge Guards: 6 •M6 Clips: 8 • Fixed Rack-Mounting Brackets: 4 • Screw Kit: M3x6 Screws, 9; M4x8 Screws, 32; M6x16 Screws, 8 Figure 6 Items shipped with Liebert GXT2-PP20KRT208 Edge Guards Fixed Brackets Clips User Manual for Rack Mounting Cover Plate for Parallel Screws Communication Cable Conn
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What’s Included 4.1 What You Need You will need the following tools for assembly of the parallel system connections. • 3/8" slotted screwdriver • Phillip #1 screwdriver • Phillip #2 screwdriver • 10mm hex driver •5mm hex driver • 3/16" hex wrench • Star T10 screwdriver 10
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Installation 5.0 INSTALLATION This section includes instructions on how to set up the connections between the parallel POD and the UPS, connect wiring to the terminal block, install the Liebert GXT2-PP20KRT208 parallel POD in a rack or on a wall and add an optional distribution POD. Do NOT attempt to start the UPS, turn on any circuit breaker or energize the input power until instructed to do so in 6.0 - Initial Startup and Electrical Checks. Verify that all circuit breakers are in the open
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Installation 5.1.2 Mount the Liebert GXT2-PP20KRT208 on a Wall Mounting the parallel POD on a wall requires eight field-supplied wall inserts and eight field-sup- plied screws. The minimum size for the wall insert is 5x30 and for the screw, M5x30. 1. Secure the four fixed brackets to the rearmost screw holes on either side of the Liebert GXT2-PP20KRT208 (see Figure 10). 2. Use the electric drill to drill the holes with suitable depth (could be the length of the wall inserts) in the wall. 3. Pu
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Installation 5.2 Paralleling System Connections The Liebert GXT2-PP20KRT208 is shipped with the input and output slots for UPS and the optional output power distribution section covered. Installation of the paralleling system requires: parallel power cables, fixed plates and cable clamps. These are included in Liebert GXT2-20KPC-6 kit (see Figure 7). Follow the procedure below to start the installation. WARNING ! Risk of electric shock. May cause property damage, personal injury or death. Let
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Installation If the Liebert GXT2-10000RT-208 UPS was a stand-alone unit but now will be part of a paral- lel system, remove the input and output cables from the rear terminal block and cover the ter- minal block with the original conduit box. 10. Secure the cables to the housing with two cable clamps, 10mm hex driver required. 11. Put the cover plate on the housing and secure it with two screws. 12. Repeat Steps 2 through 11 to connect the other parallel power cables to the other UPSs. 13. Remov
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Installation 5.3 Main Input and Output Terminal Block Connections Conduit entry holes are provided on the front top of the removable cover plate for the parallel POD. Input and output wiring should be run in separate conduit. See the following requirements and label to connect the wires. Table 1 Electrical requirements Recommended Wire Input Current Recommended Maximum (including ground wire) Terminal Rating External Overcurrent Protection (75°C copper wire) Tightening Torque 83A 120A 1/0 AWG
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PD-202 Installation 5.4 Add an Output Power Distribution Module—Optional WARNING ! Risk of electric shock. Can cause equipment damage, injury or death. Lethal voltages may exist within the UPS and parallel POD as long as the UPS is connected. Before beginning to install the optional output distribution module, make sure the paralleling system and all connected UPSs are completely powered off. To add an optional output distribution module to the Liebert GXT2-PP20KRT208: 1. Disconnect and secure
