UPS SYSTEM INSTALLATIONEaton Power Xpert 9395P-1200 UPS (1200 kVA, 1200 kW) Installation and Operation Manual P-164000500 Rev 4 www.eaton.com/powerquality 4-174.5 Field Installed UPM InstallationNOTE FI-UPM installation is not applicable to a three UPM model.If installing a four UPM model, install the FI-UPM using the instructions in the Eaton®Power Xpert® 9395P UPS Field Installed UPM Mechanical Installation Manual(P-164000503), listed in paragraph 1.8. After the FI-UPM is installed, proceed toparagraph 4.6 if installing a battery system; otherwise, proceed to paragraph 4.7 tocomplete the wiring of the UPS.4.6 Battery System InstallationIf installing a battery system, install the customer-supplied battery system accordingto the battery and battery system manufacturer's instructions and all applicable codesand regulations, including the NEC, Article 480. After the battery system is installed,proceed to paragraph 4.7 if installing a distributed bypass tie cabinet; otherwise,proceed to paragraph 4.8 to complete the wiring of the UPS.4.7 Distributed Bypass Tie Cabinet InstallationNOTE The tie cabinet must contain Module Output Breakers (MOBs) with dual auxiliary contacts for controlof the system. Without dual auxiliary MOBs, UPMs are not allowed to go to bypass individually duringservicing. All UPMs will go to bypass instead of only the UPM needing service, decreasing critical loadprotection. With dual auxiliary MOBs, one UPM can be bypassed while the remaining UPMs support the loadas long as the remaining UPMs have the capacity to do so.If installing a distributed bypass system, install the customer-supplied tie cabinet ordistribution panel according to the tie cabinet or distribution panel manufacturer'sinstructions and all applicable codes and regulations, including the NEC, Article 480.After the tie cabinet is installed, proceed to paragraph 4.8 to complete the wiring ofthe UPS.