Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03
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IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation and maintenance of the
UPS and batteries. Read all instructions before operating the equipment and save this manual for future
reference.
The UPS is designed for industrial or computer room applications, and contains safety shields behind the door
and front panels. However, the UPS is a sophisticated power system and should be handled with appropriate
care.
DANGER
This UPS contains LETHAL VOLTAGES. All repairs and service should be performed by AUTHORIZED SERVICE
PERSONNEL ONLY. There are NO USER SERVICEABLE PARTS inside the UPS.
WARNING
•
The UPS is powered by its own energy source (batteries). The output terminals may carry live voltage even
when the UPS is disconnected from an AC source.
•
To reduce the risk of fire or electric shock, install this UPS in a temperature and humidity controlled, indoor
environment, free of conductive contaminants. Ambient temperature must not exceed 40°C (104°F). Do
not operate near water or excessive humidity (95% maximum). The system is not intended for outdoor
use.
•
As a result of the connected loads high leakage current is possible. Connection to earth ground is required
for safety and proper product operation. Do not check UPS operation by any action that includes removal of
the earth (ground) connection with loads attached.
•
Emergency Power Off (EPO) and Remote Emergency Power Off (REPO) functionality is disabled for UPS
systems configured for UL 924 auxiliary lighting. To remove power from the system a LOAD OFF
command must be given using the front panel controls and all breakers opened. Review
Chapter 6
UPS
Operating Instructions
, for details.
•
Ensure all power is disconnected before performing installation or service.
•
Batteries can present a risk of electrical shock or burn from high short-circuit current. The following
precautions should be observed: 1) Remove watches, rings, or other metal objects; 2) Use tools with
insulated handles; 3) Do not lay tools or metal parts on top of batteries; 4) Wear voltage rated gloves and
electrical hazard footwear.
•
ELECTRIC ENERGY HAZARD. Do not attempt to alter any UPS or battery wiring or connectors. Attempting
to alter wiring can cause injury.
•
Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It may be toxic.
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