UPS SYSTEM INSTALLATIONPower Xpert 9395 UPS (450–550 kVA) Installation and Operation Manual 164201701 Rev 3 www.eaton.com/powerquality 4-54.3 Field Installed UPM InstallationIf installing a Plus 1 model, install the FI-UPM using the instructions in the PowerXpert 9395 Field Installed UPM Mechanical Installation Manual, listed in paragraph 1.8on page 1-10. After the FI-UPM is installed, proceed to paragraph 4.4 if installing abattery system; otherwise, proceed to paragraph 4.5.4.4 Battery System InstallationIf installing an Eaton battery cabinet, refer to the Power Xpert 9395 Integrated BatteryCabinet (Model IBC-L) Installation Manual, listed in paragraph 1.8 on page 1-10.If installing a customer-supplied battery system, install the 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 4.5 if installing adistributed bypass tie cabinet; otherwise, proceed to paragraph 4.6 to complete thewiring of the UPS.4.5 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 4.6 to complete the wiring ofthe UPS.4.6 Installing UPS External and Battery Power WiringNOTE The UPS cabinet is shipped with debris shields covering the ventilation grills on top of the cabinet.Do not remove the debris shields until installation is complete. However, remove the shields before operatingthe UPS. Once the debris shields are removed, do not place objects on the ventilation grills.NOTE Remove the UPS cabinet top or bottom conduit landing plate to drill or punch conduit holes (seeFigure 4‐4 on page 4-8).NOTE If the load requires a neutral, a bypass source neutral must be provided.NOTE DO NOT install both a source neutral and a bonding jumper. See Table 3‐7 on page 3-11 for neutralbonding jumper wire sizes. Bonding jumper must be copper wire.C A U T I O NHIGH IMPEDANCE GROUND SOURCES - If the supply source is a high impedance ground (IT) type, the inputneutral conductor must be connected from the source of supply. If there is no output neutral connected to theUPS, the neutral‐forming transformer kit may be used instead of pulling a neutral from the source. If the loadrequires a neutral, then an input neutral conductor must be pulled into the UPS. In no circumstances shall aneutral to ground bonding jumper be installed in the UPS.
