UPS SYSTEM INSTALLATIONEaton 9395 550/275 UPS (225–550 kVA) Installation and Operation Manual 164201716 Rev 2 www.eaton.com/powerquality 4-54.3 Field Installed UPM InstallationIf installing a FI-UPM, install the FI-UPM using the instructions in the Eaton 9395 FieldInstalled UPM Mechanical Installation Manual, listed in paragraph 1.8 on page 1-10.After the FI-UPM is installed, proceed to paragraph 4.4 if installing a battery system;otherwise, proceed to paragraph 4.5.4.4 Battery System InstallationIf installing an Eaton battery cabinet, refer to the Eaton 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 a distributedbypass tie cabinet; otherwise, proceed to paragraph 4.6 to complete the wiring of theUPS.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 the just 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 a debris shield covering the ventilation grill on top of the unit (seeFigure 4‐4). Do not remove the debris shield until installation is complete. However, remove the shield beforeoperating the UPS. Once the debris shield is removed, do not place objects on the ventilation grill.NOTE Remove the UPS cabinet top or bottom conduit landing plate to drill or punch conduit holes (seeFigure 4‐4).NOTE If the load requires a neutral, a bypass source neutral must be provided. If the load does not requirea neutral and there is no neutral conductor connected at the bypass input, a neutral to ground bonding jumpermust be installed. DO NOT install both a source neutral and a bonding jumper. See Table 3‐4 on page 3-9 forneutral bonding 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 tothe UPS, the neutral‐forming transformer kit may be used instead of pulling a neutral from the source. If theload requires a neutral, then an input neutral conductor must be pulled into the UPS. In no circumstancesshall a neutral to ground bonding jumper be installed in the UPS.
