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INTRODUCTION AND SYSTEM DESCRIPTION
Congratulations on your choice of the Liebert 2U Hardwire POD™.
The 2U Hardwire POD provides maintenance bypass capability as
well as power output distribution. The Liebert 2U Hardwire POD can
be used on UPS in the rack mount or tower configuration.
The Liebert 2U Hardwire POD provides an isolated path of power for
your UPS system for preventive maintenance or service. While UTIL-
ITY and LOAD connections are hardwired, connections to and from
the UPS are plug-in to allow easy connection of the UPS.
System Description
The 2U Hardwire POD has two modes of operation: UPS (UPS avail-
able) and UTILITY (maintenance bypass).
•During the UPS mode, the power is routed through the UPS sys-
tem delivering conditioned power to the load, as shown in Figure 1.
Figure 1 UPS mode of operation
•During the UTILITY mode, the power is routed around (bypass-
ing) the UPS system (see Figure 2). UTILITY power is supplied
directly to the load through the 2U Hardwire POD.
Figure 2 Utility/maintenance bypass mode
• The UPS may be turned off and removed without affecting the load.
!
CAUTION
Battery back-up and conditioned power are NOT available
during the UTILITY mode of operation.
Utility
POD
UPS
Connected
loads
Utility
Connected
loads
POD
UPS