Emerson Liebert APS - 1 Product Introduction; System Description; Table 1 Frame Designation

Product Introduction
Liebert
®
APS
™
4
1.0 PRODUCT INTRODUCTION
Congratulations on your purchase of the Liebert APS Uninterruptible Power System (UPS). As with
every other Liebert product, we stand behind our quality. If you have any questions concerning this
UPS, please feel free to contact your local dealer or Liebert representative or call the appropriate
Technical Support number listed on the back of this manual.
To ensure proper installation and operation of this unit, please read this manual thoroughly.
The installation must be completed by trained professionals and follow all local codes. General
operation of the units can be conducted without any specialized training.
This chapter provides the system description, features, operating principle, operating mode, main
components and specifications of the Liebert APS UPS.
1.1 System Description
The Liebert APS power system is a modular UPS designed to provide high reliability. It is intended
for use with workstations, servers, networks, telecoms and other sensitive electronic equipment. It
provides continuous, high-quality AC power to your equipment, protecting it from any power
disturbance due to blackouts, brownouts, surges or noise interference.
The Liebert APS UPS is an easily adaptable UPS system. By simply installing additional power or
battery modules, you can expand your current system capacity, extend your backup runtime, or
provide redundancy. The Liebert APS UPS user interface enables the user to configure the operation
according to application requirements. It also informs the user on the status of the UPS and keeps a
log of events.
The Liebert APS series UPS contains both transformer-free and transformer-based UPS frames. The
use of the transformer-free or transformer-based frames is dependent upon the specific application
requirements. The appearance of the different frames is shown in Figures 1 through 4.
Table 1 Frame designation
UPS Model Number Digits 1-3 Frame Type Frame Rating
APS1 or APSA or APS5 or APSE 10 Bay Transformer-free 15 kVA redundant
APS2 or APSB or APS6 or APSF 16 Bay Transformer-free 20 kVA redundant
APS3 or APSC 12 Bay Transformer-based 15 kVA redundant
APS4 or APSD 16 Bay Transformer-based 20 kVA redundant