Powerware 9170+ - Manual (Page 77)

73 Powerware ® 9170 User's Guide S LTM-1344 B Uncontrolled Copy
C H A P T E R 9
M
AINTENANCE
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:
S Check operating environment for clean, cool, dry conditions.
S Inspect and clean the unit.
S Check operation of fans (power modules).
S Check and tighten all connections.
S View and record the alarm and inverter logs.
S Check the batteries.
S Check the displayed UPS readings against actual measurements and
recalibrate if necessary.
S Perform a system test.
S Check and record the values of the parameters in menu 3 online and
on battery.
S Check the MOV surge suppression pack.
For more information on preventive maintenance checks, contact your
service representative.