INSTALLING THE UPS SYSTEMEATON Powerware® 9390 UPS (100–160 kVA) Installation and Operation Manual 164201604 Rev D www.powerware.com4-815. Connect phase A, B, and C, and Neutral (if required) power wiring from the IDCor IAC to the UPS cabinet output and neutral terminals. See Appendix A forwiring and termination requirements.16. Proceed to paragraph 4.7.3.17. If wiring a parallel system, proceed to Step 18; otherwise, proceed to Step 20.C A U T I O NParallel system wiring length should be in accordance with Drawing 164201604-5, sheet 15 of 15, to ensureapproximately equal current sharing when in Static Bypass mode.18. Connect phase A, B, and C, and Neutral (if required) power wiring from theoutput and neutral terminals of each uninterruptible power module (UPM) to themodule tie cabinet. See Appendix A for UPM wiring and terminationrequirements and wiring access information.19. Proceed to paragraph 4.7.3.20. Connect phase A, B, and C, and Neutral (if required) power wiring from theoutput and neutral terminals to the critical load. See Appendix A for wiring andtermination requirements and wiring access information.21. Proceed to paragraph 4.7.3.4.7.2 External Wiring Installation Procedure BTo 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.Retain the hardware for later use.3. Remove the screws securing the bottom internal safety shield panel and removethe panel to gain access to the input, output, and battery terminals. Retain thehardware 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 panelsand remove the panels to gain access to the top wiring entry. Retain thehardware for later use.6. Route the input and output cables to the UPS terminal blocks. See Drawing164201604-7 starting on page A-29 for wiring access information and terminallocations.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 theutility source to the rectifier input terminals and neutral terminals in the UPScabinet. See Appendix A for wiring and termination requirements and wiringaccess information. Note the wiring connections for single-feed systems.9. Proceed to Step 13.
