Parts Replacement - Mitsubishi Electric 9900D Series Owner Technical Manual

6.0 PARTS REPLACEMENT

Contact Mitsubishi Electric Power Products, Inc.or its authorized service representatives on all
issues regarding the replacement of parts.
A) Battery
Battery lifetime may vary according to the frequency of use and the average ambient
operating temperature. The end of battery life is defined as the state of charge resulting in an
ampere-hour capacity less than, or equal to, 80% of nominal capacity.
Replace battery if its capacity is within this percentage.
B) UPS Component Parts
UPS components have a defined life expectancy (Fan, Capacitors, Air-Filters, etc).
Contact Mitsubishi Electric Power Products, Inc. or its authorized service representatives for a
complete parts replacement schedule. Recommended replacement time interval varies with
operating environment.
Contact Mitsubishi Electric Power Products, Inc. or its authorized service representatives for
application specific recommendations.
Any parts replacements (including modification) without authorization from
Mitsubishi Electric could result in personal injuries, death or destruction of
the UPS.
WARNING
9900D SERIES UPS
OWNERS / TECHNICAL MANUAL
MITSUBISHI ELECTRIC 9900D SERIES UPS
Page Number:
6-1