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Table of contents for the manual
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Page 1
1 L IEBERT NX 1+1 S YSTEM P RODUCT S PECIFICATION AND I NSTALLATION S HEET General The Liebert NX UPS uses intelligent and reliable decentralized technology to achieve parallel opera- tion of two modules of the same rating. The 1+1 system is used to: • Increase the reliability of the syst em to ensu re adequate powe r supply to the critical load [...]
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Page 2
2 Figure 1 '1+1' System block diagram Operating Principles Redundancy Paralleling The redundancy parallel system can noticeabl y improve system reli ability. In normal con dition, nei- ther UPS module works at full l oad. That means that even if the load is increased, the system will not transfer to bypass. And when a UPS module shu ts do[...]
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Page 3
3 Inst allation The basic insta llation procedure of paralle l system is the same as that of single module system. The fol- lowing sections only introd uce the installation proce- dures specific to th e parallel system. Cabinet Inst allation Parallel system com posed of two UPS mo dules The two UPS modules that wi ll form the 1+1 system should be p[...]
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Page 4
4 Liebert Corporation 1050 Dearborn Drive P .O. Box 29186 Columbus, OH 43229 T ele phone: 1-800-877-9222 Facsimile: 1-614-841-6022 www .liebert.com © 2004 Liebert Corporation All rights reserved throughout the world. S pecifications sub- ject to change without notice. ® Liebert and the Liebert logo are registered trademarks of Liebert Corporation[...]