Xtreme Power Conversion Corporation
T90 User’s Manual
Page 20
Uninterruptible Power Supply
Maintenance
With a minimal amount of maintenance, you can expect the UPS to application, otherwise consider changing the
batteries. have a long life free of trouble. The most critical issues for the reliability of the UPS are environmental
issues. Ensure that the temperature and humidity are always according to specifications and keep the area around
the unit clean and dust free.
At a temperature of 25°C, the typical battery lifetime is 4 years.
Replacing Batteries
The batteries may be replaced without having to turn the UPS off or disconnecting the load due to the hot swap
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pable battery feature.
CAUTION!
Read and follow the IMPORTANT SAFETY INSTRUCTIONS before servicing the battery. Service the bat
-
tery under the supervision of Qualified Service Personnel knowledgeable of batteries and their precautions.
CAUTION!
Use only the specified type of battery. See your dealer for replacement batteries.
CAUTION!
The battery may present risk of electrical shock. Do not dispose of batteries in a fire as it may explode.
Follow all local ordinances regarding proper disposal of batteries.
CAUTION!
Do not open or mutilate the batteries. Released electrolyte is harmful to skin and eyes and may be toxic.
CAUTION!
Although the battery voltage is only 12VDC, the battery can present a high risk of short circuit current
and electrical shock. The short circuit current capability of the battery is sufficient to burn wire or tools very rap
-
idly, producing molten metal. Observe these precautions when replacing the battery:
1.
Remove all watches, rings or other metal objects.
2.
Only use tools with insulated handles.
3.
Do not lay tools or metal parts on top of battery or any terminals.
4. Wear protective eye wear (goggles), rubber gloves, and boots.
5.
Disconnect the charging source before connecting or disconnecting the battery terminals.
6. Determine if the battery is inadvertently grounded. If inadvertently grounded, remove the source of the
ground. Contact with 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 (applicable to a UPS and a
remote battery supply not having a grounded circuit).
Replacing batteries (700 - 3000 VA)
The following is a step-by-step tutorial for replacing the batteries:
1.
The front panel of the UPS can be removed by pushing where the arrows indicate in the pictures above.
Next, unscrew the screws and remove the metal battery cover.
2.
Remove the battery cartridge from the UPS. The voltage in all models will be less than 48Vdc once the bat
-
tery is disconnected from the UPS.
3.
Replace the batteries.
4. Push the cartridge with the new batteries back into the UPS.
5.
Reinstall the metal plate and the front panel.
