HP A3550A - High Availability Disk Arrays Model 20 Storage Enclosure Installation Manual

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.

.

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

Step 1:

Observe antistatic precautions

A power supply is shipped with an ESD kit containing:

–

ESD wrist strap

–

ESD conductive sheet

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.

Hewlett-Packard Power Supply

Installation Guide

Disk array rear view

Figure 1.

Step 2:

Prepare to install the power supply

Remove the new power supply from its shipping carton

and place it on a suitable antistatic surface or the ESD

conductive sheet.

Press the release button on the fan pack and carefully

swing the fan pack down.

The installation or removal and replacement

pleted and the fan pack closed within two minutes or the

disk array will perform a thermal shutdown.

Power

supply

as the step is completed.

be com-