Emerson 208V Manuel D’Utilisation

1. Transfer the UPS to manual bypass by pressing the Standby/Manual Bypass button and holding 

it for about 2 seconds.
If manual bypass is not available, disregard the first step.

2. Press the Standby/Manual Bypass button twice within four seconds to shut down the UPS. The 

UPS will shut down about 30 seconds after the button is pressed.

Power to the connected loads is now Off.

1. Once the UPS has been shut down as detailed in 4.5 - Shut Down the Liebert

disconnect the input cable plug.

2. Wait 30 seconds and verify that all indicators have turned Off and the fan has stopped; this 

indicates that the power-off is complete.

3. Turn the external battery cabinet breaker switch to the Off position if the UPS has an external 

battery cabinet.

After powering Off the UPS, the UPS ceases output and the load is powered Off.