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7. Set the UPS SYSTEM ENABLE switch to the
OFF position.
8. Set the Q2 switch to the OFF position.
9. Set the Q1 switch to the OFF position.
10. Set the Q5 breaker to the OFF position (if
applicable).
11. Verify that the maintenance bypass switch
(Q3) is in the OFF position.
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12. Set the DC DISCONNECT switch on all of
the XR Battery Enclosures and the PDU-XR
(if applicable) and on the main frame (only for
PX48) to the OFF position.
XR Battery Enclosures/PDU-XR
13. Disconnect all battery units by removing them
or pulling them out to the red disconnect line.
Caution: To ensure that the
enclosure does not tip, do not pull
out the battery units beyond the red
disconnect line. If you intend to
completely remove the battery units,
remove them from the enclosure one
at a time. Failure to pull battery units
out to the red disconnect line could
cause deep discharge/damage to the
batteries.
14. Set the upstream mains power to the OFF or
LOCKED OUT position. If the UPS has a dual
mains supply, set both supplies to the OFF or
LOCKED OUT position.
15. Measure bypass/output DC and mains to
ensure that the system is completely powered
off.
990–3015E-001
Symmetra™ PX48, 96, and 160 kW 400 V 100 kW 208 V Operation
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