1.0 Mechanical Installation; Introduction; Preliminary Checks - Vertiv Liebert NXL Installation Manual

1.0 MECHANICAL INSTALLATION

1.1

Introduction

The Liebert NXL Switchgear provides continuous, high-quality AC power to your business-critical equipment,
such as telecommunication and data processing equipment. Liebert NXL UPS's will supply power that is free of
the disturbances and variations in voltage and frequency common to utility power, which is subject to brownouts,
blackouts, surges and sags.
The Liebert NXL Power-Tie system provides manually initiated, uninterrupted transfers of a critical load bus
between the two UPS systems.
This topology permits one UPS and its associated distribution system to be shut down for maintenance while the
load continues to be supplied by another UPS, without the necessity of transferring the load to bypass during
shutdown or restart of the UPS being maintained.
1.2

Preliminary Checks

This chapter is a guide to general procedures and practices that should be observed by the installing personnel.
The particular conditions of each site will determine the applicability of such procedures.
Before installing the Liebert NXL Power-Tie, make these preliminary checks:
• Examine the Liebert NXL Power-Tie for transit damage, both internally and externally. Report any damage to the shipper
immediately.
• Verify that the correct equipment is being installed. The Liebert NXL Power-Tie cabinet has an identification tag on the
interior doors listing the type, size and main calibration parameters of the UPS.
• Verify that the UPS room satisfies the environmental conditions stipulated in the equipment specification, paying particular
attention to the ambient temperature and air exchange system.
Vertiv | Liebert
® ™
NXL Power-Tie Controls
™
| Rev. 6 | 06/2017 2