Emerson GXT2-10000RT208 user manual Maintenance, Internal Battery Replacement Procedures

Maintenance

12.0MAINTENANCE

The Liebert GXT2-10000RT208 requires very little maintenance. The batteries are valve-regulated, non-spillable, flame retardant, lead acid and should be kept charged to obtain their design life. The UPS continuously charges the batteries when connected to the utility supply.

When storing the UPS for any length of time, it is essential to plug the UPS in for at least 24 hours every four to six months to ensure full recharge of the batteries. Failure to recharge the batteries peri- odically will permanently degrade battery capacity.

The Liebert GXT2-10000RT208 is designed to allow the user to safely replace the internal batteries. Read the safety cautions before proceeding. Contact your local dealer or Liebert representative to obtain the appropriate replacement battery kit part number and pricing.

12.1Battery Replacement

! CAUTION

A battery can present a risk of electrical shock and high short circuit current. The following precautions should be observed before replacing the batteries:

•Remove rings, watches and other metal objects.

•Use a Phillips (crosshead) screwdriver with insulated grips.

•Do not lay tools or other metal objects on top of the batteries.

•If the battery replacement kit is damaged in any way or shows signs of leakage, contact your local dealer or Liebert representative immediately.

•Do not dispose of batteries in a fire. The batteries may explode.

12.1.1Internal Battery Replacement Procedures

Both battery packs should be replaced at the same time.

1.	Gently remove the front center plastic bezel
	cover from the UPS by pulling forward.	UPS
2.	Loosen the three screws on the front battery
	cover grille. Lay the battery cover grille aside for
	reassembly.
3.	Remove the battery brackets at the bottom front	Battery
	of the battery pack.
4.	Grasp each battery pack assembly individually
	and pull each out of the front of the UPS. Be
	prepared to support the weight of the battery as
	it is withdrawn.
5.	Unpack the new battery assemblies taking care
	not to destroy the packing. Compare new and
	old battery assemblies to make sure they are the

same. If so, proceed with the next step. If they are different, STOP and contact your local dealer, Liebert representative or the Liebert Worldwide Support Group.

6.Line up and slide in the new replacement battery packs.

7.Reinstall the brackets on the front of the battery pack.

8.Reconnect the slotted battery cable connectors.

9.Reattach the front battery door, tightening the two screws.

10.Reattach the front plastic bezel to the UPS.

Battery

Cover

Front Bezels

NOTE

These are hot-swappable replacement batteries. However, caution should be exercised because during this procedure the load is unprotected from disturbances and power outages.

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