Performing Preventive Maintenance - Powerware 9390 Installation & Operation Manual

Maintaining the UPS System
Determine if the battery is inadvertently grounded. If it is, remove the source of the
ground. Contact with any part of a grounded battery can result in electrical shock. The
likelihood of such shock will be reduced if such grounds are removed during installation
and maintenance.
When replacing batteries, use the same number of sealed, lead-acid batteries.
Proper disposal of batteries is required. Refer to your local codes for disposal
requirements.
HAZARDOUS WASTE. Do not incinerate or dispose of batteries indiscriminately. Observe
local and national codes.
Do not dispose of battery or batteries in a fire. The battery may explode.
Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin
and eyes, and may be toxic.
A battery can cause electrical shock, burn from high short-circuit current, or fire. Observe
proper precautions.
Une batterie peut prêsenter un risque de choc êlectrique, de brulure, ou d'incendie. Suivre
les précautions qui s'imposent.
Pour le remplacement, utiliser le même nombre et modéle des batteries.
L'élimination des batteries est règlementée. Consulter les codes locaux à cet effet.

13.2 Performing Preventive Maintenance

The UPS system requires very little preventive maintenance. However, the system should be
inspected periodically to verify that the units are operating normally and that the batteries
are in good condition.
13.2.1 DAILY Maintenance
Perform the following steps daily:
1. Check the area surrounding the UPS system. Ensure the area is not cluttered,
2. Ensure the air intakes (vents on the front doors) and exhaust opening (on top of
13-2
allowing free access to the unit.
the UPS cabinet sections) are not blocked.
Powerware 9390 UPS (40–80 kVA) Installation and Operation Manual S 164201535 Rev A
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