IMPORTANT: Charge the batteries for at least 24 hours before supplying backup power to devices. The batteries charge to:

•80 percent of their capacity within 3 hours

•100 percent of their capacity within 48 hours

Starting power to the load

Start power to the load by placing the UPS in Operate mode (on page 40).

IMPORTANT: AC power must be available the first time the UPS is started.

Installing the ERM in a rack

Before installing the unit, review and adhere to all warnings provided in "Precautions (on page 13)."

WARNING: A risk of personal injury or damage to the equipment exists. Uneven loading of equipment in the rack might cause the rack to become unstable. Install the heavier components first, and then continue to populate the rack from the bottom to the top.

1.Install the mounting rails.

2.Install the mounting ears on the chassis using the screws provided.

3.With one person on each side, lift the chassis to rail level and slide the chassis on the mounting rails.

Installation 26