C H A P T E R 9

MAINTENANCE

Routine Maintenance

NOTE Technicians must observe important safety precautions while performing these checks.

The Powerware 9170 system is designed to provide years of trouble-free operation. Its internal control system checks the batteries and inverter periodically to ensure reliable operation. In fact, you'll probably find that your Powerware 9170 system requires less maintenance than any of your other computer peripherals.

Nevertheless, the Powerware 9170 UPS and optional external battery cabinets do require some attention to assure continued reliable service. Powerware recommends that you schedule preventive maintenance checks at least every six months. At these checks, the service technician should follow Powerware's recommended maintenance schedule, which includes the following items:

￿Check operating environment for clean, cool, dry conditions.

￿Inspect and clean the unit.

￿Check operation of fans (power modules).

￿Check and tighten all connections.

￿View and record the alarm and inverter logs.

￿Check the batteries.

￿Check the displayed UPS readings against actual measurements and recalibrate if necessary.

￿Perform a system test.

￿Check and record the values of the parameters in menu 3 online and on battery.

￿Check the MOV surge suppression pack.

For more information on preventive maintenance checks, contact your service representative.

Powerware® 9170 User's Guide ￿ LTM-1344 B Uncontrolled Copy

73