ERM installation 59
3.
Install the rear mounting brackets using hex nuts. Wait until the unit is installed and the brackets are
adjusted before tightening the nuts.
Switching off the UPS battery circuit breaker
WARNING: To prevent the UPS from dropping the load, be sure to switch off only the UPS
battery circuit breaker.
Once the battery circuit breaker is switched off, an audible alarm sounds, the Alarm LED flashes, and the LCD
displays, "Battery not connected."
To silence an audible alarm, see "Silencing an audible alarm (on page 71)" .
Switching off the ERM circuit breaker
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