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8 – Start-Up, Shutdown and Bypass
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8-5 Manual Bypass Procedure (Single UPS)
Warning: Placing the UPS system in manual bypass will disable the inverter and power all loads from the manual bypass source, but
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the UPS system will still be energized. Before performing maintenance or repair on the UPS system, shut down and de-energize the UPS
system completely by following the steps in
they will not receive battery backup in the event of a utility power failure.
•
When the UPS system is in online (normal) mode, press the OFF
1
button
for 3 seconds (until you hear a beep), then release the
A
3
button. The inverter will automatically switch to bypass mode and
the "BYPASS" LED will illuminate.
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•
Switch on the manual bypass circuit breaker switch
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off the output circuit breaker switch
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8-6 Shutdown Procedure (Single UPS)
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Warning: The UPS system shutdown procedure will eliminate the AC power output for all loads. Before shutdown, confirm that all loads
are turned off or place the UPS system in manual bypass mode to keep loads powered by the bypass power source.
•
Press the OFF button
A
1
release the button. If the UPS system is in online (normal) mode, it
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will switch to bypass mode. If the UPS system is in battery backup
mode, the inverter will shut down and AC output power will be
interrupted.
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•
Switch off the main input circuit breaker switch
2
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•
Switch off the bypass input circuit breaker switch
3
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200803004 93-2793 SU80k manual 4C.indd E22
200803004 93-2793 SU80k manual 4C.indd E22
All manuals and user guides at all-guides.com
Section
8-6. Although connected equipment loads will be powered by the bypass power source,
A
, then switch
B
.
for 3 seconds (until you hear a beep), then
.
A
.
A
(continued)
1
ON
I
Main
Input
Front Panel
2
1
O
OFF
Main
Input
A
Front Panel
2
O
OFF
Main
Input
Front Panel
3
22
A
O
OFF
ON
ON
I
I
A
B
Back Panel
A
O
OFF
ON
ON
I
I
Back Panel
O
O
OFF
OFF
ON
I
A
Back Panel
6/16/2008 1:43:34 PM
6/16/2008 1:43:34 PM
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