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OVERVIEW OF MANUAL
The Npower manual is organized so that information can be found quickly. Each major topic is sepa-
rated by sections, and there is a Table of Contents for each section. The names of the sections and
their contents are described below.
Section 1 - INTRODUCTION is a summary of the Npower Uninterruptible Power System (UPS). It
describes some of the unique features and benefits of the Npower UPS, as well as the design princi-
ples and standards that Liebert follows in the manufacture of each system. A description of the
Npower system and an overview of its functions are also included.
Section 2 - THEORY OF OPERATION is an explanation of the major circuit groups of the Npower
UPS. This section is for individuals who want to know both the basics and the specifics of each major
component. The text explains how the UPS handles electrical disturbances and interruptions.
Section 3 - OPERATION is written for facility personnel responsible for the operation of the system.
It details the procedures required to start-up the system, to transfer the load between the available
sources, and to shut down the system. Both manual and automatic operations are described. Operator
controls and displays, including the solid state liquid crystal display (LCD) screen, are illustrated and
explained for the UPS Module.
Section 4 - MAINTENANCE lists routine maintenance checks and helps the Operator pinpoint and
quickly resolve problems if they arise.
If you require assistance for any reason, call Liebert Global Services at 1-800-LIEBERT. For best ser-
vice, please have the following information available:
Part Numbers:
Serial Numbers:
kVA Rating:
Date Purchased:
Date Installed:
Location:
Input Voltage:
Output Voltage:
Battery Reserve Time: