Installing Customer Connections; Prepare For Installing Accessories - Powerware 9335 Installation And Operation Manual

WARNING:
The Powerware 9335 UPS requires a neutral input power connection for
proper operation. Internal input and output neutrals are permanently
connected inside the cabinet.
WARNING:
An insulated grounding conductor must be provided per NEC.
4. If the installation is for a single utility feed with common rectifier and bypass input,
proceed to step 7. For a separate bypass and rectifier input, proceed to step 5.
5. Remove the single feed bus bar jumper connections from between X6 and X7, Phase
A, B, and C and discard them. They will not be used again.
6. Connect ground, phase A, B, C, and Neutral mains input power wiring from the source
to the Mains input terminals (1A, 1B, 1C) on the In/Out Terminal Block. Phase A input
connects to input terminal 1A, phase B to input terminal 1B and phase C to input
terminal 1C. Refer to Appendix A of this manual for wiring and termination
requirements and wiring access information. Note wiring connections for dual feed
systems.
7. Connect ground, phase A, B, C, and Neutral power wiring from the output terminals
(3A, 3B, 3C) on the In/Out Terminal Block to the critical load. Output terminal 3A
connects to phase A of the load, output 3B to phase B and output 3C to phase C,
respectively. Refer to Appendix A of this manual for wiring and termination
requirements and wiring access information.
8. Secure the UPS by reinstalling the safety shield panels, and closing the front cabinet
door, latching the cabinet door with the removable door handle.
2.2.4

Installing Customer Connections

2.2.5
Prepare for Installing Optional Accessories
NOTE: If you are installing accessories, including the Remote Emergency Power Off
(REPO) switch, you must install conduit between each device and the UPS
cabinet for wiring these options.
1. Be sure the UPS system is turned off and all power sources are removed. (See the
operation section of this manual for shutdown instructions.)
2-4
See Chapter 10, "Communications"
Powerware 9335 (80 kVA and 120 kVA) Installation and Operation
164201396 REV A 071103