Vertiv Liebert, Installer/User Manual

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3 ELECTRICAL INSTALLATION
These guidelines are for qualified installers who must have knowledge of local wiring practices pertaining to the equipment
to be installed.
WARNING! Risk of electrical shock. Can cause injury or death. The UPS contains high AC and DC voltages.
Check for voltage with AC and DC voltmeters before working within the UPS. Only properly trained and
qualified personnel wearing appropriate, OSHA-approved PPO should prepare to install or install the UPS.
3.1 Grounding Configuration for Battery Systems
Battery cabinet systems must be connected as floating (ungrounded) systems.
Center-tapped or grounded battery systems are not possible with battery cabinet systems.
Whether the battery system is open-rack or cabinet, the metal rack parts or cabinet must be grounded to the UPS-module
ground bus.
3.2 Connecting Equipment Ground Cables and Straps
The grounding conductor must be connected to the ground busbar and bonded to each cabinet in the system. For the
location of the ground busbar for your system, see the appropriate illustrations for your unit included in the submittal
drawings that shipped with the battery system, or contact your Vertiv sales representative for the drawings.
For connected or attached cabinets, ground cables and hardware are supplied. For detached or stand-alone cabinets, the
cables and hardware are field-supplied. See the terminal detail drawings for the ground busbar’s location.
All cabinets and cabling must be grounded in accordance with local regulations.
WARNING! Failure to follow adequate grounding procedures can result in electric shock hazard to personnel,
or the risk of fire, should a ground fault occur. All operations described in this section must be performed by
properly trained and qualified electricians or technical personnel. If any difficulties are encountered, contact
Vertiv Technical Support, http://www.Vertiv.com/en-us/support/.
Once the equipment is positioned and secured, refer to the appropriate illustrations for your unit included in submittal
drawings that shipped with the battery system, or contact your Vertiv sales representative for the drawings, and complete
the following steps:
1. Open the exterior and interior panels on the front of the I/O sections.
2. Connect the ground cable to the equipment ground busbar in the I/O sections.
3. For a connected/attached battery system, connect ground straps. See Figure 3.1 on the next page.
3 Electrical Installation
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