HP A3550A Power Supply Installation Guide - Not Orderable

Hewlett-Packard Power Supply

Installation Guide

Hewlett-Packard power supplies are installable and replaceable. A replacement or add-on power supply must be the same

type as the power supplies already installed in the array.

The locations of the power supplies in the 30-slot disk arrays are shown in Figure 1.

.

Figure 1.

Install a power supply by performing the following steps. Place a check in the appropriate

o

as the step is completed.

Step 1:

Observe antistatic precautions

A power supply is shipped with an ESD kit containing:

–

ESD wrist strap

–

ESD conductive sheet

o

Ground the ESD wrist strap to any unplated metal on

the disk array chassis and fasten the strap to your wrist.

On 30-slot disk arrays, the ESD wrist strap can be

grounded to the metal edge above the rear retaining

screws.

Step 2:

Prepare to install the power supply

o

Remove the new power supply from its shipping carton

and place it on a suitable antistatic surface or the ESD

conductive sheet.

o

Press the release button on the fan pack and carefully

swing the fan pack down.

The installation or removal and replacement

MUST

be com-

pleted and the fan pack closed within two minutes or the

disk array will perform a thermal shutdown.

Power

supply

Disk array rear view