Powerware 100160 kVA manual External Wiring Installation Procedure a

Installing the UPS System

C A U T I O N

DELTA SOURCES (TN-S) - The 9390 UPS system can be operated only from a delta supply source that is fully floating and if the neutral-forming transformer kit (PN 103005400) is installed in the UPS. The UPS cannot be operated from a mid-point or end-point grounded delta supply source. With this type of supply source, there is no capability to provide an output neutral. In no circumstances shall a neutral to ground bonding jumper be installed in the

UPS.

Use the applicable procedure from the following list for the UPS model being installed:

￿For UPS models 120/100, 120/120, 160/100, 160/120, and 160/160 with 208V/220V input and UPS models 160/100, 160/120, and 160/160 with 480V input, proceed to paragraph 3.2.6.1.

￿For UPS models 120/100 and 120/120 with 480V input, proceed to paragraph 3.2.6.2.

3.2.6.1 External Wiring Installation Procedure A

To install wiring to connections:

1.Slide the air filters up and remove them from the cabinet.

2.Remove the screws securing the control panel door and swing the door open.

3.Remove the screws securing the bottom internal safety shield panel and remove the panel to gain access to the input, output, and battery terminals. Retain the hardware for later use.

4.If installing power wiring from the top of the cabinet, proceed to Step 5; otherwise, proceed to Step 6.

5.Remove the screws securing the top and right side internal safety shield panels and remove the panels to gain access to the top wiring entry. Retain the hardware for later use.

6.Route the input and output cables to the UPS terminal blocks. See Drawing 164201604-7 starting on page A-29 for wiring access information and terminal locations.

7.If wiring a single-feed system, proceed to Step 8; if wiring a dual-feed system, proceed to Step 10.

8.Connect phase A, B, C, and Neutral (if required) input power wiring from the utility source to the rectifier input terminals and neutral terminals in the UPS cabinet. See Appendix A for wiring and termination requirements and wiring access information. Note wiring connections for single-feed systems.

9.Proceed to Step 13.

EATON Powerware® 9390 UPS (100–160 kVA) Installation and Operation Manual S 164201604 Rev B powerware.com 3-7