Eaton 9355 Installation And Operation Manual

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Eaton 9355 UPS (20/30kVA) Installation and Operation Manual 164201626—Rev F www.eaton.com/powerquality 17Chapter 4 Joining the CabinetsIf you are installing additional cabinets to the UPS, join the cabinets before installing the electrical connectionsbetween the cabinets.To join the cabinets:1. Position the cabinets to the left of the UPS, leaving enough space between cabinets to remove theknockouts.Note: Position the Extended Battery Cabinet (EBC) to the far left of the UPS and Options Cabinet (ifinstalled).Note: A maximum of four EBCs can be installed.Note: If you have two Options Cabinets, position the cabinet with the maintenance bypass switch (MBS)closest to the UPS.2. Remove the front door of all cabinets (see page 10).3. For EBCs only or EBCs and Options Cabinets, continue to Step 4. For Options Cabinets only, proceed toStep 8.4. Remove the knockout on the top left side of the UPS and the top right side of the EBC (see Figure 10).If you are installing more than one EBC, remove both knockouts on the middle cabinet(s).5. If you are installing an EBC with an Options Cabinet, continue to Step 6; otherwise, proceed to Step 11 toinstall the ground straps.6. Remove both knockouts from the top sides of the Options Cabinet (see Figure 10).7. Remove one edge grommet from the inside rail of the EBC(s). Install the grommet on the bottom edge ofthe left knockout of the Options Cabinet (the knockout closest to the UPS does not need an edgegrommet).If you are installing two Options Cabinets, install edge grommets on both knockouts of the secondcabinet.8. Remove the rectangular knockout on the right side of the Options Cabinet.If you have two Options Cabinets, remove the rectangular knockout on the right side of the secondOptions Cabinet.9. Remove the three circular knockouts on the left side of the UPS (see Figure 10).If you have two Options Cabinets, remove the three circular knockouts on the left side of the first OptionsCabinet.10. Install three bushings (supplied) in the circular knockouts of the adjacent cabinet.