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8 Symmetra PX 160 kW 400 V Operation 990-3015-001
Operation Procedures
Note: If the system does not contain a PDU-XR, the Q1, Q2, Q3, and Q5 switches are located
on an optional external maintenance bypass panel. Refer to the documentation included with the
maintenance bypass panel for additional information.
Total Power Off procedure
Warning: Before electrical installation begins, verify that the UPS is in the Total Power Off
mode by following this procedure.
Set the SYSTEM ENABLE switch to the the OFF position.
Set the DC DISCONNECT switch on all XR Battery enclosures and on the back of the PDU-XR to the
OFF position.
Disconnect all battery units by removing them or pulling them out to the red disconnect line.
Caution: To ensure the enclosure does not tip, do not pull the battery units out beyond
the red disconnect line unless you completely remove them from the enclosure.
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UPS
XR Battery enclosures / PDU-XR