Liebert Vertiv GXT5 Installer/User Manual page 95

b. Lift the maintenance bypass breaker cover up and tighten the lower maintenance bypass breaker captive
screw.
2. Confirm that the UPS is operating in internal bypass. If not, then manually transfer the connected equipment
to bypass as follows:
a. From the main menu select CONTROL, then press Enter.
b. Select Turn on/off/to bypass and press Enter.
c. Select Turn to bypass and press Enter.
• The load is unprotected from disturbances in the power supply while the UPS is on bypass.
3. Turn maintenance bypass breaker on.
4. Turn the internal bypass off as follows:
a. From the main menu select CONTROL, then press Enter.
b. Select Turn on/off/to bypass and press Enter.
c. Select Turn off UPS and press Enter.
5.. Turn off breakers as follows:
a. For 5-kVA and 6-kVA models, Turn off input breaker, 40A output breaker.
WARNING
Do not turn off 10A output breakers.
b. For 8-kVA and 10-kVA models, Turn off input breaker, bypass breaker, 63A output breaker,
WARNING
Do not turn off 10A output breaker and 16A output breaker.
6. Do not perform any operations until the UPS is completely turned-off.
7. Loosen other captive screws until the power-distribution box releases.
Vertiv | Liebert® GXT5™ | Installer/User Guide 87