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4.0 Installation
Note: If the red Overload indicator lights, the UPS is overloaded. Unplug
equipment that does not require backing up, such as a printer, and restart
the UPS. If the Replace Battery indicator lights, recharge the UPS over-
night and retest.
Note: Refer to Section 7.0 for troubleshooting information.
4.7 Check site wiring fault indicator—100, 120 Vac versions only
After you connect the loads to the UPS and turn on the
UPS, the Site Wiring Fault indicator on the UPS’s rear panel
should be checked. It will light when the UPS is plugged
into an improperly wired wall outlet. Wiring faults detected
include missing ground, hot-neutral polarity reversal, and overloaded
neutral circuit.
Note: If the UPS indicates a site wiring fault, a qualified electrician should be
summoned to correct the building wiring.
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