Removal And Replacement Procedures; Shutting Down The System - HP R12000 XR Maintenance And Service Manual

IMPORTANT: Before beginning any of the procedures in this chapter, read and understand the
cautions and warnings in Chapter 1.
This chapter explains the procedures for removing and replacing spare parts for the UPS.
Before you begin any of these procedures, you must shut down the UPS. After you complete
all necessary removal and replacement procedures, power up the UPS to verify that all
components are operating properly.

Shutting Down the System

To shut down the system:
1. Place the UPS in Standby mode by pressing the Standby button for three seconds. The
load relays open and the Utility LED begins to flash slowly. (For more information on the
control buttons, refer to the section, "Control Buttons," in Chapter 3.)
NOTE: Pressing the Standby button for seven seconds reboots the system and drops the load.
The system recovers to Standby mode.
2. Disconnect the AC mains by opening the switch or circuit breaker at the utility panel.
HP UPS R12000 XR Models Maintenance and Service Guide
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Removal and Replacement Procedures

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