Performing Preventive Maintenance - Powerware 9335 Installation And Operation Manual

12.3 Performing Preventive Maintenance

The UPS system requires very little preventive maintenance. However, the system
should be inspected periodically to verity that the units are operating normally and that
the batteries are in good condition.
Perform the following checks DAILY:
1. Check the area surrounding the UPS system. Ensure the area is not cluttered,
allowing free access to the unit.
2. Ensure the air intakes (vents on the bottom) and exhaust opening (on the top of the
cabinet) are not blocked.
3. Ensure the operating environment is within the parameters specified in Chapter 13,
"Product Specifications."
4. Ensure the UPS is in Normal mode. (Proper LED indicators are illuminated and the
LCD display shows "LOAD PROTECTED"). If the alarm LED is illuminated or the
Normal status LEDs are not illuminated, contact Customer Service.
Perform the following check MONTHLY:
1. Review the Event Log for any operational issues that need attention.
ANNUAL maintenance:
Annual preventive maintenance should be performed only by authorized service
personnel familiar with maintenance and servicing of the UPS system. Contact your
nearest field service office for more information about service offerings.
BATTERY Test:
The battery test takes approximately 3 minutes and should be performed only if:
The battery testing can be carried out independently of the operation mode (OFF-LINE
or ON-LINE) and whether or not the load is connected. The battery test procedure can
be performed from the UPS front panel. See Chapter 7, "Using the Control Panel".
BATTERY Maintenance:
Contact your nearest field service office for battery maintenance. Only authorized
service personnel should perform Battery replacement and maintenance.
12-2
•
There are no alarm conditions
•
The battery is fully charged
•
Utility supply is present and normal
Powerware 9335 (80 kVA and 120 kVA) Installation and Operation
164201396 REV A 071103