Installing Options Cabinet External Power Wiring - Powerware 9330 Installation & Operation Manual

2.4.4

Installing Options Cabinet External Power Wiring

NOTE: Remove Options cabinet input and output conduit landing plate to punch
conduit holes.
1.
Route input cables to input terminal block. Refer to Appendix A of this manual
for wiring access information.
CAUTION:
Proper UPS operation requires a Bypass Input Neutral connection. This neutral is
required to be the common conductor between all bypass source phases (e.g.,
"wye" or "4 wire" source).
2.
Connect phase A, B, C, and Neutral mains and bypass input power wiring from
source to the bypass input terminals in the Options cabinet. Refer to Appendix
A of this manual for wiring and termination requirements and wiring access
information.
3.
If output breakers and power distribution cabling and receptacles are not
installed, proceed to step 4; otherwise, proceed to step 9.
4.
Remove Distribution Housing rear cover.
5.
Open top cover on the Options cabinet by sliding the Options cabinet top
cover latches toward the rear of the cabinet and lifting the cover. Secure cover
in the upright position using latching slide bar.
6.
Install Square-D Type QO or QOB breakers into PDM panelboard. Refer to
Appendix A of this manual for access information.
7.
Install output receptacle power cables through Distribution Housing conduit
landing plate to branch circuit breaker.
NOTE: Installation of the output receptacle power cables shall be in accordance
with Article 356 of the NEC.
8.
Wire branch circuits in accordance with branch circuit breaker manufacturers
instructions (output from the Options cabinet is prewired to the PDM). Refer to
Appendix A of this manual wiring access information.
9.
After wiring the Options cabinet to the facility power and critical load, be sure
to ground the system according to local and/or national electrical wiring codes.
10.
When all wiring is complete, connect battery strings in accordance with
instructions contained in paragraphs 3.4.1 and 3.4.2 of Chapter 3.
11.
Secure the UPS by reinstalling safety shield panels, front vented panels, and
front solid panel.
12.
Install side panel removed from the UPS cabinet to the left side of the Options
cabinet.
13.
Secure the Options cabinet by reinstalling front vented panel and Distribution
Housing rear cover, and closing top cover.
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Powerware 9330 (IBM 9910 20 kVA) Installation and Operation
164201491 REV. B 013004