24
4.2.5
Shut Down Procedure
CAUTION!
This procedure is used to completely shut down the UPS and the LOAD.
Once all power switches and circuit breakers are opened, there will be
no output.
On-line mode:
◆
Press OFF to shut down the UPS and wait 30 seconds.
◆
Turn OFF the BATTERY breaker for long backup time models. Open the battery power
switch for standard models.
◆
Turn OFF the input breaker.
◆
Turn OFF the OUTPUT breaker. The UPS will shut down.
◆
To completely isolate the UPS from AC input power, all input switches for utility
power should be completely off.
◆
The primary input distribution panel, which is often located a distance away from the
UPS, should be labelled to advise personnel that the UPS system is under
maintenance.
Battery mode:
◆
Press OFF to shut down the UPS and wait 30 seconds.
◆
Turn OFF the BATTERY breaker for long backup time models. Open the battery power
switch for standard models.
◆
Turn OFF the OUTPUT breaker. The UPS will shut down.
WARNING!
Wait 5 minutes for the internal D.C. bus bar capacitors to be completely
discharged.
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