30 | 4.0 Operation
4.4 Manual Bypass
Press the Standby/Manual Bypass button once and hold it for about 2 seconds while the UPS is in Utility (VAC) Mode. The
UPS will transfer the connected loads to the internal bypass. If the internal bypass is not available due to utility power
problems, pressing this button once will be ignored. Bypass operation is indicated by an audible alarm and illuminated
amber Bypass indicator. If other indicators are illuminated, refer to “8.0 Troubleshooting”.
4.5 Shut Down the S4K2UC
1. Transfer the UPS to manual bypass by pressing the Standby/Manual Bypass button once (hold it for about 2 seconds).
If manual bypass is not available, disregard the rst step.
2. To shut down the UPS, press the Standby/Manual Bypass button twice within 4 seconds (hold the button for about a
half a second each time).
Power to the connected loads is now o.
4.6 Disconnecting Input Power from the S4K2UC
1. Once the UPS has been shut down as detailed in “4.5 Shut Down the S4K2UC”, disconnect the input cable plug.
2. Wait 30 seconds and verify that all indicators have turned o and the fan has stopped; this indicates that the power-
o is complete.
3. If the UPS has an external battery cabinet, turn the external battery cabinet breaker switch to the o position.
After powering o the UPS, the UPS ceases output and the load is powered o.
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