System Description

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.

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

Utility

POD

Connected loads

UPS

•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.

! CAUTION

Battery back-up and conditioned power are NOT available during the UTILITY mode of operation.

Figure 2 Utility/maintenance bypass mode

Utility

POD

Connected loads

UPS

• The UPS may be turned off and removed without affecting the load.