Eaton 93PM UPS (60–100 kW, 480V) Installation and Operation Manual P-164000227—Rev 2 www.eaton.com/powerquality 2-1Chapter 2 Safety WarningsIMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONSThis manual contains important instructions that should be followed during installation andmaintenance of the UPS and batteries. Read all instructions before operating the equipment andsave this manual for future reference.The UPS is designed for industrial or computer room applications, and contains safety shieldsbehind the door and front panels. However, the UPS is a sophisticated power system and shouldbe handled with appropriate care.DANGERThis UPS contains LETHAL VOLTAGES. All repairs and service should be performed byAUTHORIZED SERVICE PERSONNEL ONLY. There are NO USER SERVICEABLE PARTS inside theUPS.WARNINGl The UPS is powered by its own energy source (batteries). The output terminals may carry livevoltage even when the UPS is disconnected from an AC source.l To reduce the risk of fire or electric shock, install this UPS in a temperature and humiditycontrolled, indoor environment, free of conductive contaminants. Ambient temperature mustnot exceed 40C (104F). Do not operate near water or excessive humidity (95% maximum).The system is not intended for outdoor use.l As a result of the connected loads high leakage current is possible. Connection to earth groundis required for safety and proper product operation. Do not check UPS operation by any actionthat includes removal of the earth (ground) connection with loads attached.l Ensure all power is disconnected before performing installation or service.l Batteries can present a risk of electrical shock or burn from high short-circuit current. Thefollowing 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 rubber gloves and boots.l ELECTRIC ENERGY HAZARD. Do not attempt to alter any UPS or battery wiring or connectors.Attempting to alter wiring can cause injury.l Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It maybe toxic.CAUTIONl Installation or servicing should be performed by qualified service personnel knowledgeable ofUPS and battery systems, and required precautions. Keep unauthorized personnel away fromequipment. Consider all warnings, cautions, and notes before installing or servicing equipment.DO NOT DISCONNECT the batteries while the UPS is in Battery mode.l Replace batteries with the same number and type of batteries as originally installed with theUPS.l Disconnect the charging source prior to connecting or disconnecting terminals.