Eaton 91PS User And Installation Manual

Also see for 91PS: Safety and installation quick guide Safety and installation quick guide User and installation guide User and installation guide

Contents

Figure 36. Warning labelSince each battery string is an energy source in itself, opening the battery circuitbreaker does not de-energize the voltage within the battery string.DANGERDo not attempt to access any internal area of the battery string yourself.Voltages are always present in the battery strings. If you suspect that abattery string needs service, contact your service representative.Observe these precautions when working on or around batteries:• Remove watches, rings, or other metal objects.• Use tools with insulated handles.• Wear rubber gloves and boots.• Do not lay tools or metal parts on top of batteries or battery cabinets.• Prior to connecting or disconnecting terminal, disconnect the chargingsource.• Determine if the battery is inadvertently grounded. If it is, remove the sourceof the ground. Contact with any part of a grounded battery can result in anelectrical shock. The likelihood of such a shock is reduced if such groundsare removed during installation and maintenance.• When replacing batteries, use the same number of sealed, lead-acidbatteries.• Dispose of batteries according to your local codes for disposal requirements.8.2 Performing preventive maintenanceThe UPS system requires very little preventive maintenance. However, inspectthe system periodically to verify that the units are operating normally and thatthe batteries are in good condition.The majority of the service and maintenance work must be performed by servicepersonnel qualified by Eaton. Only the actions described in Section8.2.1 andSection8.2.2 are allowed to be performed by the user.See the Eaton 91PS/93PS UPS 8–10 kW Service Manual for further information.Eaton 91PS/93PS UPS 8-10 kW User's and installation guide© Eaton Corporation plc 2018. All rights reserved. Revision: 003 Document ID: P-164000672 87 (102)