
990-1467C InfraStruXure System – Service Manual – Installation and Start-Up 23
Ensure that All Power is Off
Electrical Hazard: Before you proceed, ensure that power is off by following the
procedure in this section.
Warning: Do not install any batteries into the XR Battery Enclosure or power modules
into the Symmetra PX UPS until instructed to do so.
How to ensure that all power is off
1. Set the UPS System Enable switch to OFF.
2. Set the XR Battery Enclosure DC Disconnect breaker to OFF.
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