American Power Conversion 450 user manual 990-5022A, Revision 2 6/99

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APC PowerStack 450

100V

Uninterruptible Power Supply

User’s Manual

Notice: In case of a problem with this product, do not return to the place of purchase. Go to the support
page at www.apcc.com for Technical Support or call 1-800-800-4272 for prompt customer service.	990-5022A, Revision 2 6/99

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Contents 990-5022A, Revision 2 6/99 Connect Equipment Install UPSTurn on UPS Table of Contents Page Electrical Safety SafetyHandling Safety Page Initial Inspection Installation990-5022A, Revision 2 6/99 Battery Pack Charge SetupOperating Instructions Computer Interface PortOn Battery LEDs and Audible AlarmsReplace Battery OverloadStorage Operating ModesReplacement Batteries Replacing the Battery PackBattery Pack Replacement Procedure Service SpecificationsAPC Japan Contact Information Limited Warranty