Introduction - Mitsubishi Electric 9900D Series Owner Technical Manual

1.0 INTRODUCTION

The Mitsubishi Uninterruptible Power Supply System (UPS) is designed to provide many years of
reliable protection from power failure, brown-outs, line noise, and voltage transients. To ensure
optimum performance of the equipment, follow the manufacturer's instructions. This manual
contains descriptions required to operate the UPS. Please read this manual carefully and retain it
for future reference.
CAUTION
This manual contains important instructions for the 9900D SERIES Uninterruptible Power Supply
System that should be followed during installation and maintenance of the UPS and batteries.
WARNING
Lethal voltages exist within the equipment during operation. Observe all warning
and cautions in this manual. Failure to comply may result in serious injury or death.
Obtain qualified service for this equipment as instructed.
9900D SERIES UPS
OWNERS / TECHNICAL MANUAL
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
WARNING 1
MITSUBISHI ELECTRIC 9900D SERIES UPS
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