Eaton 9155 UPS (8–15 kVA) User's Guide 164201553 Rev G (www.eaton.com/powerquality) 25Chapter 6 UPS-Mounted Bypass Switch InstallationThis chapter describes the Maintenance Bypass Module (MBM) and PowerDistribution Module (PDM) installation. Both modules have a Make-Before-Break(MBB) maintenance bypass switch.MBM/PDM SetupIf you purchased an optional MBM/PDM, attach the module to the UPS before anywiring installation. All hardware is supplied in the accessory kit.To attach the optional MBM/PDM to the UPS:1. Remove the connecting plate between the top cabinet and the cabinet below iton the UPS rear panel (see Figure 14). Discard the plate. Retain the screws forlater use.2. Remove the lowest top cover screw on each side of the UPS and discard.Connecting Plate(8 screws)Lowest Top Cover Screw(one each side)Figure 14. UPS Rear View (2-High Cabinet Shown)
