Powerware 9170 - UPS with Bypass Electrical Installation

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Powerware
®
9170
+
UPS User’s Guide S Rev B www.powerware.com
Chapter 3 UPS with Bypass Electrical Installation
NOTE If you have a plug-receptacle unit, continue to “Battery Cabinet
Installation” on page 57 for installing optional battery cabinets or to
“UPS Startup” on page 63.
WARNING
Only qualified service personnel (such as a licensed electrician) should perform
the electrical installation. Risk of electrical shock.
The Powerware 9170
+
UPS input power may be hardwired through
conduit to either a main power source circuit breaker or to an optional
external bypass switch. For hardwired installations, it is recommended
that you install a Powerware bypa ss switch to enable power transfer
during maintenance or UPS downtime. If a bypass switch is used, both
UPS input and UPS output must be hardwired–
through separate
conduits
–to the bypass switch, as shown in Figure 13.