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Operation
9
6.0 OPERATION
6.1 Transfer to Maintenance Bypass
To transfer to maintenance bypass (utility) from UPS, use the following steps:
1. Ensure the UTILITY lamp (amber) is illuminated. If the lamp is not illuminated, refer to 7.0 -
Troubleshooting.
2. Transfer the rotary switch from UPS to UTILITY, provided the UTILITY lamp is illuminated on
the 3U POD.
3. Turn the UPS off.
4. Disconnect the two cables connecting the UPS to the 3U POD.
5. You may now service the UPS.
6.2 Transfer to UPS
To transfer to UPS from maintenance bypass (utility), use the following steps:
1. Reconnect the UPS to the 3U POD. Start the UPS according to the instructions in the UPS user
manual.
2. Verify that UPS lamp (green) on the 3U POD is illuminated. If so, transfer the rotary bypass
switch from UTILITY to UPS. If the lamp does not illuminate, refer to 7.0 - Troubleshooting.