19 Eaton® 9390 (100–160 kVA) UPS Installation and Operation Manual 164201604—Rev F
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 380V/400V/415V/480V input, proceed to
4.7.1 External Wiring Installation Procedure A.
• For UPS models 120/100 and 120/120 with 480V input, proceed to
4.7.2 External Wiring Installation Procedure B.
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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 Figure 85 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 Chapter 15 Installation Information for wiring
and termination requirements and wiring access information. Note wiring connections for single-feed
systems.
9. Proceed to Step 13.
In the following step, DO NOT move the sensing and EMI wires from the rectifier contactor K1 input terminals.
These wires must remain connected for proper UPS operation.
10. Disconnect the phase A, B, and C bypass contactor K5 power input leads only (two wires per phase) from
the rectifier contactor K1 input terminals. Connect these power leads to the bypass input terminals.
11. Connect phase A, B, and C rectifier input power wiring from the utility source to the rectifier input
terminals in the UPS cabinet. See Chapter 15 Installation Information for wiring and termination
requirements and wiring access information. Note wiring connections for dual-feed systems.
12. Connect phase A, B, and C, and Neutral (if required) bypass input power wiring from the utility source to
the bypass input terminals and neutral terminals in the UPS cabinet. See
Chapter 15 Installation Information for wiring and termination requirements and wiring access information.
Note wiring connections for dual-feed systems.
13. If wiring an IDC or IAC, proceed to Step 14; otherwise, proceed to Step 17.
14. Route and connect the output cable between the UPS cabinet and the IDC or IAC. Refer to the applicable
IDC or IAC installation and operation manual listed in 1.6 For More Information for wiring instructions. See
Chapter 15 Installation Information for UPS cabinet wiring access information.
15. Connect phase A, B, and C, and Neutral (if required) power wiring from the IDC or IAC to the UPS cabinet
output and neutral terminals. See Chapter 15 Installation Information for wiring and termination
requirements.
Installing the UPS System
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