Powerware 9150 - Manual (Page 48)

Operation
44 Powerware ® 9150 User’s Guide
:
www.powerware.com
Maintenance
Bypass Switch
ON
OFF
F1
Battery
Neutral
Fuse CB1
Internal
Battery
CB2
(Optional)
External
Battery UPS ON/OFF Switch
and Indicators
Figure 17. UPS Breakers and Switches (Front Panel Removed)
Using the Maintenance Bypass Switch
The Maintenance Bypass switch is standard on all Powerware 9150
models and is used to bypass the UPS during maintenance or servicing.
The Maintenance Bypass switch is located behind the front panel. The
SERVICE position on the Maintenance Bypass switch allows a service
engineer to apply power to the UPS input and verify its operation while
the load is powered through bypass.