Parts Replacement - Mitsubishi Electric M9950 Series Technical Manual

MITSUBISHI
ELECTRIC

5.0 PARTS REPLACEMENT

Contact MITSUBISHI 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 (Fans, Capacitors, Filters, etc.)
Contact MITSUBISHI or its authorized service representatives for a complete parts
replacement schedule. Recommended replacement time interval varies with operating
environment.
Contact MITSUBISHI or its authorized service representatives for application specific
recommendations.
WARNING
CAUTION
M9950 SERIES UPS
OWNERS / TECHNICAL MANUAL
Any parts replacements (including modification) without
authorized by MITSUBISHI could result in personal injuries,
death or destruction of the UPS.
Power shutdown and wait 5min for internal capacitors discharge
and stopped rotating of fans should be confirmed before any
replacement work.
MITSUBISHI ELECTRIC M9950 SERIES UPS
Page Number:
5-1